/*
 * School ERP design system — docs/UI_DESIGN_SYSTEM.md
 * Plain CSS on top of Bootstrap 5.3.8 (no build step). Tokens first; Bootstrap's variables are mapped
 * onto them so stock components follow the system. Contrast of every text/background pair is
 * checked by tests/Unit/View/ContrastTest.php, which reads the token blocks below.
 */

/* ------------------------------------------------------------------ fonts (self-hosted, OFL) */
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/ibm-plex-sans-5.3.0/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/ibm-plex-sans-5.3.0/ibm-plex-sans-latin-500-normal.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/ibm-plex-sans-5.3.0/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/ibm-plex-sans-5.3.0/ibm-plex-sans-latin-ext-400-normal.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/ibm-plex-sans-5.3.0/ibm-plex-sans-latin-ext-500-normal.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/ibm-plex-sans-5.3.0/ibm-plex-sans-latin-ext-600-normal.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/ibm-plex-sans-5.3.0/ibm-plex-sans-devanagari-devanagari-400-normal.woff2") format("woff2"); unicode-range: U+0900-097F, U+1CD0-1CF9, U+200C-200D, U+20A8, U+20B9, U+20F0, U+25CC, U+A830-A839, U+A8E0-A8FF, U+11B00-11B09; }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/ibm-plex-sans-5.3.0/ibm-plex-sans-devanagari-devanagari-500-normal.woff2") format("woff2"); unicode-range: U+0900-097F, U+1CD0-1CF9, U+200C-200D, U+20A8, U+20B9, U+20F0, U+25CC, U+A830-A839, U+A8E0-A8FF, U+11B00-11B09; }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/ibm-plex-sans-5.3.0/ibm-plex-sans-devanagari-devanagari-600-normal.woff2") format("woff2"); unicode-range: U+0900-097F, U+1CD0-1CF9, U+200C-200D, U+20A8, U+20B9, U+20F0, U+25CC, U+A830-A839, U+A8E0-A8FF, U+11B00-11B09; }

/* ------------------------------------------------------------------ tokens: light (default) */
/* tokens:light */
:root {
  --erp-ink: #1B1F3B;
  --erp-ink-muted: #545B7C;
  --erp-paper: #ECEFF6;
  --erp-surface: #FFFFFF;
  --erp-surface-alt: #F6F7FB;
  --erp-rule: #D8DDEA;
  --erp-rule-strong: #BCC3D8;
  --erp-control-border: #7A809E;
  --erp-primary: #2E3A8C;
  --erp-primary-hover: #252F73;
  --erp-on-primary: #FFFFFF;
  --erp-primary-soft: #E6E9F8;
  --erp-marigold: #A86A00;
  --erp-marigold-soft: #FBEFD5;
  --erp-marigold-bright: #F2B640;
  --erp-sidebar-bg: #1E2766;
  --erp-sidebar-ink: #EEF0FC;
  --erp-sidebar-muted: #B3B9E6;
  --erp-sidebar-hover: #2A3479;
  --erp-sidebar-active: #343F8C;
  --erp-success: #1A6B43;
  --erp-success-soft: #E3F2EA;
  --erp-danger: #B42318;
  --erp-danger-soft: #FDECEA;
  --erp-warning: #9A5207;
  --erp-warning-soft: #FDF0E1;
  --erp-info: #1D63B5;
  --erp-info-soft: #E6EFFA;
  --erp-neutral: #545B7C;
  --erp-neutral-soft: #ECEDF3;
  --erp-leave: #6B3FA0;
  --erp-leave-soft: #F0EAF8;
  --erp-shadow-card: 0 1px 2px rgba(27, 31, 59, .06), 0 4px 16px rgba(27, 31, 59, .06);
  --erp-shadow-1: 0 4px 16px rgba(27, 31, 59, .12);
  --erp-shadow-2: 0 12px 40px rgba(27, 31, 59, .18);
}
/* /tokens:light */

/* ------------------------------------------------------------------ tokens: dark */
/* tokens:dark */
[data-bs-theme="dark"] {
  --erp-ink: #E7E9F5;
  --erp-ink-muted: #A5AAC7;
  --erp-paper: #11142A;
  --erp-surface: #1A1E38;
  --erp-surface-alt: #20254A;
  --erp-rule: #2D3256;
  --erp-rule-strong: #3B416B;
  --erp-control-border: #6B7199;
  --erp-primary: #8F9BFF;
  --erp-primary-hover: #A9B2FF;
  --erp-on-primary: #11142A;
  --erp-primary-soft: #262C5A;
  --erp-marigold: #F2B640;
  --erp-marigold-soft: #3A2E10;
  --erp-marigold-bright: #F2B640;
  --erp-sidebar-bg: #151931;
  --erp-sidebar-ink: #E7E9F5;
  --erp-sidebar-muted: #A5AAC7;
  --erp-sidebar-hover: #20254A;
  --erp-sidebar-active: #262C5A;
  --erp-success: #5BD38F;
  --erp-success-soft: #16362A;
  --erp-danger: #FF8A80;
  --erp-danger-soft: #3E1F22;
  --erp-warning: #F5A35C;
  --erp-warning-soft: #3A2A14;
  --erp-info: #7CB6FF;
  --erp-info-soft: #172C49;
  --erp-neutral: #A5AAC7;
  --erp-neutral-soft: #262A45;
  --erp-leave: #C4A2F5;
  --erp-leave-soft: #2E2347;
  --erp-shadow-card: 0 1px 2px rgba(0, 0, 0, .3);
  --erp-shadow-1: 0 4px 16px rgba(0, 0, 0, .4);
  --erp-shadow-2: 0 12px 40px rgba(0, 0, 0, .5);
}
/* /tokens:dark */

/* ------------------------------------------------------------------ scale and shape */
:root {
  --erp-font: "IBM Plex Sans", "Noto Sans Devanagari", "Noto Sans Bengali", "Noto Sans Tamil", "Noto Sans Telugu", "Noto Sans Kannada", "Noto Sans Malayalam", "Noto Sans Gujarati", "Noto Sans Gurmukhi", "Noto Sans Oriya", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --erp-text-xs: .75rem;     /* 12 */
  --erp-text-sm: .8125rem;   /* 13 */
  --erp-text-md: .9375rem;   /* 15 */
  --erp-text-lg: 1.125rem;   /* 18 */
  --erp-text-xl: 1.375rem;   /* 22 */
  --erp-text-2xl: 1.625rem;  /* 26 */
  --erp-text-3xl: 2rem;      /* 32 */
  --erp-space-1: .25rem; --erp-space-2: .5rem; --erp-space-3: .75rem; --erp-space-4: 1rem;
  --erp-space-5: 1.5rem; --erp-space-6: 2rem; --erp-space-8: 3rem;
  --erp-radius-control: 6px;
  --erp-radius-panel: 10px;
  --erp-radius-overlay: 14px;
  --erp-ease: cubic-bezier(.2, 0, 0, 1);
  --erp-sidebar: 256px;
  --erp-sidebar-rail: 72px;
}

/* ------------------------------------------------------------------ Bootstrap mapped onto the tokens */
:root, [data-bs-theme="dark"] {
  --bs-body-font-family: var(--erp-font);
  --bs-body-font-size: var(--erp-text-md);
  --bs-body-line-height: 1.47;
  --bs-body-color: var(--erp-ink);
  --bs-body-bg: var(--erp-paper);
  --bs-emphasis-color: var(--erp-ink);
  --bs-secondary-color: var(--erp-ink-muted);
  --bs-tertiary-bg: var(--erp-paper);
  --bs-border-color: var(--erp-rule);
  --bs-border-radius: var(--erp-radius-control);
  --bs-border-radius-lg: var(--erp-radius-panel);
  --bs-link-color: var(--erp-primary);
  --bs-link-hover-color: var(--erp-primary-hover);
  --bs-link-color-rgb: 46, 58, 140;
  --bs-primary: var(--erp-primary);
  --bs-primary-rgb: 46, 58, 140;
  --bs-focus-ring-color: color-mix(in srgb, var(--erp-primary) 35%, transparent);
  --bs-heading-color: var(--erp-ink);
}
[data-bs-theme="dark"] { --bs-link-color-rgb: 143, 155, 255; --bs-primary-rgb: 143, 155, 255; }

body { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
@media (max-width: 767.98px) {
  :root { --bs-body-font-size: 1rem; }             /* 16px on phones: no iOS zoom on focus */
}
h1, .h1 { font-size: var(--erp-text-xl); font-weight: 600; line-height: 1.27; margin: 0; }
h2, .h2 { font-size: var(--erp-text-lg); font-weight: 500; line-height: 1.44; }
h3, .h3 { font-size: var(--erp-text-md); font-weight: 600; }
.erp-display { font-size: var(--erp-text-3xl); font-weight: 600; line-height: 1.19; }
.text-muted, .form-text { color: var(--erp-ink-muted) !important; }
.erp-num, table, .erp-amount, input[inputmode="decimal"], input[inputmode="numeric"] { font-variant-numeric: tabular-nums; }
.erp-amount { white-space: nowrap; }
.erp-measure { max-width: 75ch; }

/* Focus is always visible (WCAG 2.2 AA). */
:focus-visible { outline: 2px solid var(--erp-primary); outline-offset: 2px; }
.btn:focus-visible, .form-control:focus, .form-select:focus, .form-check-input:focus {
  outline: 2px solid var(--erp-primary); outline-offset: 2px; box-shadow: none;
}

.erp-skip { position: absolute; left: var(--erp-space-4); top: -100px; z-index: 2000; padding: var(--erp-space-2) var(--erp-space-4);
  background: var(--erp-surface); color: var(--erp-primary); border-radius: var(--erp-radius-control); box-shadow: var(--erp-shadow-1); }
.erp-skip:focus { top: var(--erp-space-4); }

.erp-icon { width: 1.125em; height: 1.125em; fill: currentColor; vertical-align: -0.175em; flex-shrink: 0; }

/* ------------------------------------------------------------------ buttons */
.btn { --bs-btn-font-weight: 500; --bs-btn-border-radius: var(--erp-radius-control); --bs-btn-padding-y: .5rem; --bs-btn-padding-x: 1rem;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--erp-space-2); min-height: 40px;
  transition: background-color 120ms var(--erp-ease), border-color 120ms var(--erp-ease), color 120ms var(--erp-ease); }
@media (pointer: coarse) { .btn { min-height: 44px; } }
.btn-primary { --bs-btn-bg: var(--erp-primary); --bs-btn-border-color: var(--erp-primary); --bs-btn-color: var(--erp-on-primary);
  --bs-btn-hover-bg: var(--erp-primary-hover); --bs-btn-hover-border-color: var(--erp-primary-hover); --bs-btn-hover-color: var(--erp-on-primary);
  --bs-btn-active-bg: var(--erp-primary-hover); --bs-btn-active-border-color: var(--erp-primary-hover); --bs-btn-active-color: var(--erp-on-primary);
  --bs-btn-disabled-bg: var(--erp-primary); --bs-btn-disabled-border-color: var(--erp-primary); --bs-btn-disabled-color: var(--erp-on-primary); }
.btn-outline-primary, .btn-secondary { --bs-btn-color: var(--erp-primary); --bs-btn-bg: var(--erp-surface); --bs-btn-border-color: var(--erp-control-border);
  --bs-btn-hover-color: var(--erp-primary); --bs-btn-hover-bg: var(--erp-primary-soft); --bs-btn-hover-border-color: var(--erp-primary);
  --bs-btn-active-color: var(--erp-primary); --bs-btn-active-bg: var(--erp-primary-soft); --bs-btn-active-border-color: var(--erp-primary); }
.btn-quiet { --bs-btn-color: var(--erp-primary); --bs-btn-bg: transparent; --bs-btn-border-color: transparent;
  --bs-btn-hover-color: var(--erp-primary); --bs-btn-hover-bg: var(--erp-primary-soft); --bs-btn-hover-border-color: transparent;
  --bs-btn-active-bg: var(--erp-primary-soft); --bs-btn-active-border-color: transparent; }
.btn-danger { --bs-btn-bg: var(--erp-danger); --bs-btn-border-color: var(--erp-danger); --bs-btn-color: #fff;
  --bs-btn-hover-bg: color-mix(in srgb, var(--erp-danger) 85%, #000); --bs-btn-hover-border-color: color-mix(in srgb, var(--erp-danger) 85%, #000); --bs-btn-hover-color: #fff; }
[data-bs-theme="dark"] .btn-danger { --bs-btn-color: #11142A; --bs-btn-hover-color: #11142A; }
.btn[aria-busy="true"] { pointer-events: none; }
.btn[aria-busy="true"] .erp-btn-label { opacity: .7; }

/* ------------------------------------------------------------------ forms */
.form-label { font-weight: 500; margin-bottom: var(--erp-space-1); }
.erp-required { font-weight: 400; color: var(--erp-ink-muted); font-size: var(--erp-text-sm); margin-left: var(--erp-space-1); }
.form-control, .form-select { border-color: var(--erp-control-border); border-radius: var(--erp-radius-control); background-color: var(--erp-surface); color: var(--erp-ink); min-height: 40px; }
@media (pointer: coarse) { .form-control, .form-select { min-height: 44px; } }
.form-check-input { border-color: var(--erp-control-border); }
.form-check-input:checked { background-color: var(--erp-primary); border-color: var(--erp-primary); }
.form-control.is-invalid, .form-select.is-invalid { border-color: var(--erp-danger); background-image: none; padding-right: .75rem; }
.invalid-feedback { color: var(--erp-danger); font-size: var(--erp-text-sm); display: flex; gap: var(--erp-space-1); align-items: flex-start; }
.input-group-text { background: var(--erp-paper); border-color: var(--erp-control-border); color: var(--erp-ink-muted); }
.erp-form { max-width: 880px; }
.erp-form-section + .erp-form-section { margin-top: var(--erp-space-6); padding-top: var(--erp-space-5); border-top: 1px solid var(--erp-rule); }
@media (max-width: 767.98px) {
  .erp-form-actions { position: sticky; bottom: 0; z-index: 5; margin: var(--erp-space-5) calc(-1 * var(--erp-space-4)) 0; padding: var(--erp-space-3) var(--erp-space-4);
    background: var(--erp-surface); border-top: 1px solid var(--erp-rule); display: flex; gap: var(--erp-space-2); }
  .erp-form-actions .btn { flex: 1; }
}

/* ------------------------------------------------------------------ app shell */
.erp-shell { display: flex; min-height: 100vh; }
.erp-sidebar { width: var(--erp-sidebar); flex-shrink: 0; background: var(--erp-sidebar-bg); color: var(--erp-sidebar-ink); border-right: 1px solid var(--erp-sidebar-bg); }
@media (min-width: 992px) {
  .erp-sidebar { position: sticky; top: 0; height: 100vh; overflow-y: auto; display: flex; flex-direction: column; }
  .erp-shell.is-rail .erp-sidebar { width: var(--erp-sidebar-rail); }
  .erp-shell.is-rail .erp-nav-label, .erp-shell.is-rail .erp-identity-name, .erp-shell.is-rail .erp-collapse-label { display: none; }
}
.erp-identity { display: flex; align-items: center; gap: var(--erp-space-3); padding: var(--erp-space-4); border-bottom: 1px solid rgba(255, 255, 255, .08);
  border-top: 4px solid var(--erp-marigold-bright); min-height: 72px; color: var(--erp-sidebar-ink); }
.erp-identity .btn-close { filter: invert(1) grayscale(1); }
.erp-identity-logo { width: 40px; height: 40px; border-radius: var(--erp-radius-control); object-fit: contain; background: var(--erp-paper); flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center; color: var(--erp-primary); overflow: hidden; }
.erp-sidebar .erp-identity-logo { background: #FFFFFF; }
.erp-identity-logo img { width: 100%; height: 100%; object-fit: contain; }
.erp-identity-name { font-weight: 600; line-height: 1.25; font-size: var(--erp-text-md); }
.erp-nav { list-style: none; margin: 0; padding: var(--erp-space-2); flex: 1; }
.erp-nav a { display: flex; align-items: center; gap: var(--erp-space-3); padding: .5625rem var(--erp-space-3); border-radius: var(--erp-radius-control);
  color: var(--erp-sidebar-muted); text-decoration: none; position: relative; min-height: 40px; transition: background-color .12s var(--erp-ease), color .12s var(--erp-ease); }
.erp-nav a:hover { background: var(--erp-sidebar-hover); color: var(--erp-sidebar-ink); }
.erp-nav a:focus-visible { outline: 2px solid var(--erp-marigold-bright); outline-offset: -2px; }
.erp-nav a[aria-current="page"] { background: var(--erp-sidebar-active); color: var(--erp-sidebar-ink); font-weight: 500; }
.erp-nav a[aria-current="page"]::before { content: ""; position: absolute; left: calc(-1 * var(--erp-space-2)); top: 8px; bottom: 8px; width: 3px; border-radius: 2px; background: var(--erp-marigold-bright); }
.erp-nav .erp-icon { width: 1.25rem; height: 1.25rem; }
.erp-sidebar-foot { padding: var(--erp-space-2); border-top: 1px solid rgba(255, 255, 255, .08); }
.erp-sidebar-foot .btn-quiet { color: var(--erp-sidebar-muted); }
.erp-sidebar-foot .btn-quiet:hover { color: var(--erp-sidebar-ink); background: var(--erp-sidebar-hover); }

.erp-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.erp-topbar { position: sticky; top: 0; z-index: 1020; display: flex; align-items: center; gap: var(--erp-space-3); min-height: 56px;
  padding: var(--erp-space-2) var(--erp-space-5); background: var(--erp-surface); border-bottom: 1px solid var(--erp-rule); }
.erp-topbar .breadcrumb { margin: 0; font-size: var(--erp-text-sm); --bs-breadcrumb-divider-color: var(--erp-ink-muted); --bs-breadcrumb-item-active-color: var(--erp-ink-muted); }
.erp-topbar-spacer { flex: 1; }
.erp-session-select { width: auto; min-height: 36px; font-variant-numeric: tabular-nums; }
.erp-avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--erp-primary-soft); color: var(--erp-primary); display: inline-flex;
  align-items: center; justify-content: center; font-weight: 600; font-size: var(--erp-text-sm); }
.erp-banner { display: flex; align-items: center; gap: var(--erp-space-3); padding: var(--erp-space-2) var(--erp-space-5); font-size: var(--erp-text-sm); border-bottom: 1px solid var(--erp-rule); }
.erp-banner-closed { background: var(--erp-marigold-soft); color: var(--erp-ink); box-shadow: inset 4px 0 0 var(--erp-marigold); }
.erp-banner-platform { background: var(--erp-info-soft); color: var(--erp-ink); box-shadow: inset 4px 0 0 var(--erp-info); }
.erp-content { padding: var(--erp-space-5); width: 100%; max-width: 1440px; }
.erp-page-head { display: flex; flex-wrap: wrap; align-items: center; gap: var(--erp-space-3); margin-bottom: var(--erp-space-5); }
.erp-page-head .erp-actions { margin-left: auto; display: flex; gap: var(--erp-space-2); flex-wrap: wrap; }
@media (max-width: 991.98px) {
  .erp-topbar { padding: var(--erp-space-2) var(--erp-space-4); }
  .erp-content { padding: var(--erp-space-4); }
  .erp-topbar .breadcrumb { display: none; }
}
@media (max-width: 767.98px) {
  .erp-page-head .erp-actions .erp-primary-action { position: fixed; right: var(--erp-space-4); bottom: var(--erp-space-4); z-index: 1030; box-shadow: var(--erp-shadow-1); border-radius: 999px; }
}

/* ------------------------------------------------------------------ panels, tables, lists */
.erp-panel { background: var(--erp-surface); border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-panel); box-shadow: var(--erp-shadow-card); }
.erp-panel-head { display: flex; align-items: center; gap: var(--erp-space-3); padding: var(--erp-space-3) var(--erp-space-4); border-bottom: 1px solid var(--erp-rule); }
.erp-panel-head h2 { margin: 0; font-size: var(--erp-text-lg); }
.erp-panel-body { padding: var(--erp-space-4); }

.erp-table { --bs-table-bg: var(--erp-surface); --bs-table-color: var(--erp-ink); --bs-table-border-color: var(--erp-rule);
  --bs-table-hover-bg: var(--erp-primary-soft); --bs-table-hover-color: var(--erp-ink); margin: 0; font-size: var(--erp-text-sm); }
.erp-table thead th { background: var(--erp-surface-alt); color: var(--erp-ink-muted); font-weight: 500;
  border-bottom: 1px solid var(--erp-rule-strong); white-space: nowrap; }
/* Header that stays under the top bar while a long list scrolls. Only for tables NOT inside a
   horizontal scroller (.table-responsive), where sticky would be relative to the scroller instead. */
.erp-table--sticky-head thead th { position: sticky; top: 56px; z-index: 2; }
.erp-table td, .erp-table th { padding: .625rem var(--erp-space-3); vertical-align: middle; }
.erp-table .erp-num, .erp-table .erp-amount { text-align: right; }
/* Every fifth row is ruled a little stronger, as on register paper, so long lists stay trackable. */
.erp-table tbody tr:nth-child(5n) td { border-bottom-color: var(--erp-rule-strong); }
.erp-table tbody tr.is-selected td { background: var(--erp-primary-soft); }

.erp-list { list-style: none; margin: 0; padding: 0; }
.erp-list > li { padding: var(--erp-space-3) var(--erp-space-4); border-bottom: 1px solid var(--erp-rule); }
.erp-list-title { display: flex; justify-content: space-between; gap: var(--erp-space-2); font-weight: 500; }
.erp-list-meta { color: var(--erp-ink-muted); font-size: var(--erp-text-sm); }

.erp-bulkbar { display: flex; align-items: center; gap: var(--erp-space-3); padding: var(--erp-space-2) var(--erp-space-4);
  background: var(--erp-primary-soft); border-bottom: 1px solid var(--erp-rule); }

/* ------------------------------------------------------------------ status chips (§2.3): colour + text, never colour alone */
.erp-chip { display: inline-flex; align-items: center; gap: .375rem; padding: .125rem .5rem; border-radius: var(--erp-radius-control);
  font-size: var(--erp-text-sm); font-weight: 500; line-height: 1.4; white-space: nowrap; }
.erp-chip-code { font-weight: 600; min-width: 1.25em; text-align: center; }
.erp-chip--success { background: var(--erp-success-soft); color: var(--erp-success); }
.erp-chip--danger  { background: var(--erp-danger-soft);  color: var(--erp-danger); }
.erp-chip--warning { background: var(--erp-warning-soft); color: var(--erp-warning); }
.erp-chip--info    { background: var(--erp-info-soft);    color: var(--erp-info); }
.erp-chip--neutral { background: var(--erp-neutral-soft); color: var(--erp-neutral); }
.erp-chip--leave   { background: var(--erp-leave-soft);   color: var(--erp-leave); }
.erp-chip--struck .erp-chip-label { text-decoration: line-through; }

/* ------------------------------------------------------------------ statistic strip (one panel, divided) */
.erp-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); background: var(--erp-surface);
  border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-panel); }
.erp-stat { padding: var(--erp-space-4) var(--erp-space-5); border-left: 1px solid var(--erp-rule); }
.erp-stat:first-child { border-left: 0; }
.erp-stat-value { font-size: var(--erp-text-2xl); font-weight: 600; font-variant-numeric: tabular-nums; line-height: 1.2; }
.erp-stat-label { color: var(--erp-ink-muted); font-size: var(--erp-text-sm); }
.erp-stat-delta { font-size: var(--erp-text-xs); color: var(--erp-ink-muted); margin-top: var(--erp-space-1); }
@media (max-width: 575.98px) {
  .erp-stats { grid-template-columns: 1fr 1fr; }
  .erp-stat { border-left: 0; border-top: 1px solid var(--erp-rule); }
  .erp-stat:nth-child(-n+2) { border-top: 0; }
  .erp-stat:nth-child(even) { border-left: 1px solid var(--erp-rule); }
}

/* ------------------------------------------------------------------ registers (§6) */
.erp-register { font-size: var(--erp-text-sm); }
.erp-register-summary { display: flex; flex-wrap: wrap; gap: var(--erp-space-4); align-items: center; padding: var(--erp-space-3) var(--erp-space-4); border-bottom: 1px solid var(--erp-rule); }
.erp-register-summary output { font-weight: 600; font-variant-numeric: tabular-nums; }
.erp-register-scroll { overflow-x: auto; }
.erp-register table { min-width: 560px; }
.erp-register th.erp-sticky, .erp-register td.erp-sticky { position: sticky; left: 0; z-index: 1; background: var(--erp-surface); }
.erp-register tr.is-dirty td:first-child { box-shadow: inset 4px 0 0 var(--erp-marigold); }
.erp-register tr:focus-within td { background: var(--erp-primary-soft); }
.erp-seg { position: relative; display: inline-flex; border: 1px solid var(--erp-control-border); border-radius: var(--erp-radius-control); overflow: hidden; }
.erp-seg input { position: absolute; opacity: 0; pointer-events: none; }
.erp-seg label { min-width: 2.5rem; min-height: 36px; padding: 0 .5rem; display: inline-flex; align-items: center; justify-content: center;
  font-weight: 600; cursor: pointer; border-left: 1px solid var(--erp-rule); color: var(--erp-ink-muted); user-select: none; }
.erp-seg label:first-of-type { border-left: 0; }
@media (pointer: coarse) { .erp-seg label { min-width: 44px; min-height: 44px; } }
.erp-seg input:focus-visible + label { outline: 2px solid var(--erp-primary); outline-offset: -2px; }
.erp-seg input[value="P"]:checked + label  { background: var(--erp-success-soft); color: var(--erp-success); }
.erp-seg input[value="A"]:checked + label  { background: var(--erp-danger-soft);  color: var(--erp-danger); }
.erp-seg input[value="L"]:checked + label  { background: var(--erp-warning-soft); color: var(--erp-warning); }
.erp-seg input[value="H"]:checked + label  { background: var(--erp-info-soft);    color: var(--erp-info); }
.erp-seg input[value="LV"]:checked + label { background: var(--erp-leave-soft);   color: var(--erp-leave); }
.erp-marks-input { width: 5.5rem; text-align: right; font-variant-numeric: tabular-nums; }
.erp-register-save { display: flex; justify-content: flex-end; align-items: center; gap: var(--erp-space-3); padding: var(--erp-space-3) var(--erp-space-4); border-top: 1px solid var(--erp-rule); }
.erp-unsaved { color: var(--erp-ink-muted); font-size: var(--erp-text-sm); }
.erp-unsaved::before { content: ""; display: inline-block; width: .5rem; height: .5rem; border-radius: 50%; background: var(--erp-marigold); margin-right: .375rem; }

/* ------------------------------------------------------------------ empty states, skeletons, timeline */
.erp-empty { text-align: center; padding: var(--erp-space-8) var(--erp-space-4); color: var(--erp-ink-muted); }
.erp-empty .erp-icon { width: 2.5rem; height: 2.5rem; color: var(--erp-control-border); margin-bottom: var(--erp-space-3); }
.erp-empty h2 { color: var(--erp-ink); font-size: var(--erp-text-lg); }
.erp-skeleton { display: block; height: .875rem; border-radius: 4px; background: linear-gradient(90deg, var(--erp-neutral-soft) 0, var(--erp-rule) 50%, var(--erp-neutral-soft) 100%);
  background-size: 200% 100%; animation: erp-shimmer 1.4s linear infinite; }
@keyframes erp-shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
.erp-timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.erp-timeline li { position: relative; padding: 0 0 var(--erp-space-4) var(--erp-space-5); }
.erp-timeline li::before { content: ""; position: absolute; left: .3125rem; top: .5rem; bottom: -.25rem; width: 1px; background: var(--erp-rule-strong); }
.erp-timeline li:last-child::before { display: none; }
.erp-timeline li::after { content: ""; position: absolute; left: 0; top: .375rem; width: .6875rem; height: .6875rem; border-radius: 50%; background: var(--erp-surface); border: 2px solid var(--erp-primary); }
.erp-timeline time { display: block; font-size: var(--erp-text-xs); color: var(--erp-ink-muted); }

/* ------------------------------------------------------------------ overlays */
.toast-container { z-index: 1090; }
.toast { --bs-toast-bg: var(--erp-surface); --bs-toast-border-color: var(--erp-rule); --bs-toast-border-radius: var(--erp-radius-panel); --bs-toast-box-shadow: var(--erp-shadow-1); --bs-toast-color: var(--erp-ink); }
.erp-toast-success { box-shadow: inset 4px 0 0 var(--erp-success), var(--erp-shadow-1); }
.erp-toast-error { box-shadow: inset 4px 0 0 var(--erp-danger), var(--erp-shadow-1); }
.modal { --bs-modal-bg: var(--erp-surface); --bs-modal-border-color: var(--erp-rule); --bs-modal-border-radius: var(--erp-radius-overlay); --bs-modal-box-shadow: var(--erp-shadow-2); }
.dropdown-menu { --bs-dropdown-bg: var(--erp-surface); --bs-dropdown-border-color: var(--erp-rule); --bs-dropdown-border-radius: var(--erp-radius-control);
  --bs-dropdown-box-shadow: var(--erp-shadow-1); --bs-dropdown-link-active-bg: var(--erp-primary); --bs-dropdown-link-active-color: var(--erp-on-primary); box-shadow: var(--bs-dropdown-box-shadow); }
.offcanvas { --bs-offcanvas-bg: var(--erp-surface); --bs-offcanvas-width: 288px; }
.erp-sidebar.offcanvas-lg { --bs-offcanvas-bg: var(--erp-sidebar-bg); --bs-offcanvas-color: var(--erp-sidebar-ink); --bs-offcanvas-width: 288px; }
.alert { border-radius: var(--erp-radius-panel); }

/* ------------------------------------------------------------------ minimal layout (sign-in, errors, setup) */
.erp-minimal { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: var(--erp-space-5) var(--erp-space-4); }
.erp-minimal-card { width: 100%; max-width: 440px; background: var(--erp-surface); border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-panel); padding: var(--erp-space-6); }
.erp-minimal-card.is-wide { max-width: 640px; }
.erp-error-code { font-variant-numeric: tabular-nums; color: var(--erp-ink-muted); font-size: var(--erp-text-sm); font-weight: 500; }
.erp-reference { font-variant-numeric: tabular-nums; background: var(--erp-paper); border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-control); padding: var(--erp-space-2) var(--erp-space-3); font-size: var(--erp-text-sm); }

/* ------------------------------------------------------------------ style guide only */
code { color: var(--erp-ink-muted); }
.erp-swatch { display: flex; align-items: center; gap: var(--erp-space-3); }
.erp-swatch-chip { width: 40px; height: 40px; border-radius: var(--erp-radius-control); border: 1px solid var(--erp-rule); flex-shrink: 0; }

/* ------------------------------------------------------------------ motion and print */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0s !important; animation-iteration-count: 1 !important; transition-duration: 0s !important; scroll-behavior: auto !important; }
}
@media print {
  :root { --erp-paper: #fff; --erp-surface: #fff; --erp-ink: #000; --erp-ink-muted: #333; }
  .erp-sidebar, .erp-topbar, .erp-banner, .erp-actions, .erp-form-actions, .toast-container, .erp-register-save, .btn { display: none !important; }
  .erp-content { padding: 0; max-width: none; }
  .erp-panel { border: 0; }
  .erp-table thead { display: table-header-group; }
  .erp-table thead th { position: static; }
  a { color: #000; text-decoration: none; }
}

/* style guide swatches (classes, because style="" attributes are blocked by the CSP) */
.erp-swatch-chip.is-ink { background: var(--erp-ink); }
.erp-swatch-chip.is-paper { background: var(--erp-paper); }
.erp-swatch-chip.is-surface { background: var(--erp-surface); }
.erp-swatch-chip.is-rule { background: var(--erp-rule); }
.erp-swatch-chip.is-control-border { background: var(--erp-control-border); }
.erp-swatch-chip.is-primary { background: var(--erp-primary); }
.erp-swatch-chip.is-primary-soft { background: var(--erp-primary-soft); }
.erp-swatch-chip.is-marigold { background: var(--erp-marigold); }
.erp-swatch-chip.is-success { background: var(--erp-success); }
.erp-swatch-chip.is-danger { background: var(--erp-danger); }
.erp-swatch-chip.is-warning { background: var(--erp-warning); }
.erp-swatch-chip.is-info { background: var(--erp-info); }
.erp-swatch-chip.is-leave { background: var(--erp-leave); }
.erp-sg-section { scroll-margin-top: 72px; }
.erp-sg-section + .erp-sg-section { margin-top: var(--erp-space-8); }
.erp-sg-toc { display: flex; flex-wrap: wrap; gap: var(--erp-space-2); margin-bottom: var(--erp-space-6); }

/* top-bar switchers */
.erp-switch-label { max-width: 16rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dropdown-item[aria-current="true"] { font-weight: 600; color: var(--erp-primary); }
.dropdown-item[aria-current="true"]::after { content: " ✓"; }
.erp-topbar .btn { white-space: nowrap; }
@media (max-width: 575.98px) {
  .erp-topbar { gap: var(--erp-space-1); padding-left: var(--erp-space-2); padding-right: var(--erp-space-2); }
  .erp-topbar .btn { --bs-btn-padding-x: .5rem; }
}

/* installer steps */
.erp-steps { list-style: none; display: flex; gap: var(--erp-space-2); padding: 0; margin: 0 0 var(--erp-space-5); flex-wrap: wrap; }
.erp-steps li { display: flex; align-items: center; gap: var(--erp-space-2); color: var(--erp-ink-muted); font-size: var(--erp-text-sm); }
.erp-steps li + li::before { content: ""; width: 1.5rem; height: 1px; background: var(--erp-rule-strong); }
.erp-step-mark { width: 1.5rem; height: 1.5rem; border-radius: 50%; border: 1px solid var(--erp-control-border); display: inline-flex; align-items: center; justify-content: center;
  font-size: var(--erp-text-xs); font-weight: 600; font-variant-numeric: tabular-nums; }
.erp-steps li.is-current { color: var(--erp-ink); font-weight: 500; }
.erp-steps li.is-current .erp-step-mark { background: var(--erp-primary); border-color: var(--erp-primary); color: var(--erp-on-primary); }
.erp-steps li.is-done .erp-step-mark { background: var(--erp-success-soft); border-color: var(--erp-success); color: var(--erp-success); }
@media (max-width: 575.98px) { .erp-steps li:not(.is-current) .erp-step-label { display: none; } }
.erp-key-input { font-variant-numeric: tabular-nums; letter-spacing: .08em; text-transform: uppercase; max-width: 22rem; }
@media (max-width: 575.98px) {
  .erp-minimal-card { padding: var(--erp-space-5) var(--erp-space-4); }
  .erp-steps { gap: var(--erp-space-1); flex-wrap: nowrap; }
  .erp-steps li { gap: var(--erp-space-1); }
  .erp-steps li + li::before { width: .75rem; }
}

/* fact lists (label: value) */
.erp-facts { display: grid; grid-template-columns: max-content 1fr; gap: var(--erp-space-2) var(--erp-space-4); }
.erp-facts dt { font-weight: 500; color: var(--erp-ink-muted); }
.erp-facts dd { margin: 0; overflow-wrap: anywhere; }
.erp-temp-password { font-variant-numeric: tabular-nums; letter-spacing: .06em; user-select: all; }

/* permission editor */
.erp-perm-group { padding: var(--erp-space-3) var(--erp-space-4); border-bottom: 1px solid var(--erp-rule); }
.erp-perm-group legend { font-size: var(--erp-text-sm); font-weight: 600; color: var(--erp-ink-muted); margin-bottom: var(--erp-space-2); float: none; }
.erp-perm-group .form-check { margin-bottom: var(--erp-space-1); }
.erp-tabular { font-variant-numeric: tabular-nums; }
.erp-input-short { max-width: 14rem; }
.erp-input-tiny { max-width: 5.5rem; text-align: right; font-variant-numeric: tabular-nums; }

/* imports */
.erp-import-choice { padding: var(--erp-space-3) 0; border-bottom: 1px solid var(--erp-rule); }
.erp-import-choice:first-of-type { padding-top: 0; }
.erp-import-columns { margin: var(--erp-space-2) 0 0 1.75rem; }
.erp-import-columns summary { font-size: var(--erp-text-sm); color: var(--bs-link-color); cursor: pointer; width: max-content; }
.erp-import-columns[open] summary { margin-bottom: var(--erp-space-2); }
.erp-must { font-weight: 400; font-size: var(--erp-text-xs); color: var(--erp-ink-muted); }
.erp-tips { padding-left: calc(var(--erp-space-4) + 1.25rem); }
.erp-tips li + li { margin-top: var(--erp-space-2); }
.erp-cell-file { max-width: 16rem; overflow-wrap: anywhere; }
.erp-import-counts { display: flex; flex-wrap: wrap; gap: var(--erp-space-2) var(--erp-space-5); margin: 0 0 var(--erp-space-4); color: var(--erp-ink-muted); }
.erp-import-counts strong { font-size: var(--erp-text-xl); font-weight: 600; color: var(--erp-ink); font-variant-numeric: tabular-nums; margin-right: var(--erp-space-1); }
.erp-problem-list { margin: 0; padding-left: 1rem; }
.erp-problem-list li + li { margin-top: var(--erp-space-1); }
.erp-problem-col { font-weight: 500; }
.erp-row-num { width: 4.5rem; font-variant-numeric: tabular-nums; color: var(--erp-ink-muted); }
.erp-stack-label { display: none; }
/* On phones, problem and result tables stack: row number and identity on one line, details below. */
@media (max-width: 575.98px) {
  .erp-table-stack thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .erp-table-stack tr { display: grid; grid-template-columns: auto 1fr; column-gap: var(--erp-space-3); padding: var(--erp-space-2) 0; border-bottom: 1px solid var(--erp-rule); }
  .erp-table-stack td { border: 0; padding: var(--erp-space-1) var(--erp-space-3); }
  .erp-table-stack td:last-child { grid-column: 1 / -1; }
  .erp-table-stack .erp-row-num { width: auto; }
  .erp-table-stack .erp-stack-label { display: inline; }
}

/* students */
.erp-disclosure > summary { cursor: pointer; color: var(--bs-link-color); font-size: var(--erp-text-sm); width: max-content; max-width: 100%; }
.erp-disclosure[open] > summary { margin-bottom: var(--erp-space-3); }
.erp-person + .erp-person { border-top: 1px solid var(--erp-rule); }
.erp-person { padding: var(--erp-space-3) var(--erp-space-4); }
.erp-person-head { display: flex; flex-wrap: wrap; align-items: center; gap: var(--erp-space-2); }
.erp-person-head .erp-person-name { font-weight: 600; }
.erp-person-actions { display: flex; flex-wrap: wrap; gap: var(--erp-space-2); margin-top: var(--erp-space-2); }
.erp-person-actions form { display: inline; }
.erp-revealed { font-size: var(--erp-text-lg); font-variant-numeric: tabular-nums; letter-spacing: .02em; }
.erp-col-roll { width: 7rem; }
legend.erp-legend { font-size: var(--erp-text-md); font-weight: 500; float: none; }

/* ------------------------------------------------------------------ forms: sectioned layout (owner review 11-10-2026) */
.erp-req { color: var(--erp-danger); margin-left: 2px; font-weight: 600; }
.erp-formpage { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: var(--erp-space-5); align-items: start; max-width: 1180px; }
.erp-formpage--plain { grid-template-columns: minmax(0, 1fr); max-width: 920px; }
.erp-fnav { position: sticky; top: 72px; }
.erp-fnav ol { list-style: none; margin: 0; padding: 0; }
.erp-fnav a { display: flex; align-items: center; gap: var(--erp-space-2); padding: .5rem var(--erp-space-3); border-radius: var(--erp-radius-control);
  color: var(--erp-ink-muted); text-decoration: none; font-size: var(--erp-text-sm); font-weight: 500; border-left: 3px solid transparent; }
.erp-fnav a:hover { background: var(--erp-surface); color: var(--erp-ink); }
.erp-fnav a.is-current { background: var(--erp-surface); color: var(--erp-primary); border-left-color: var(--erp-primary); box-shadow: var(--erp-shadow-card); }
.erp-fnav .erp-fnav-flag { margin-left: auto; color: var(--erp-danger); display: none; }
.erp-fnav a.has-error .erp-fnav-flag { display: inline-flex; }
.erp-fnav-note { margin-top: var(--erp-space-4); padding: 0 var(--erp-space-3); font-size: var(--erp-text-xs); color: var(--erp-ink-muted); }
.erp-fsection { background: var(--erp-surface); border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-panel); box-shadow: var(--erp-shadow-card);
  margin-bottom: var(--erp-space-5); scroll-margin-top: 72px; }
.erp-fsection-head { display: flex; gap: var(--erp-space-3); align-items: flex-start; padding: var(--erp-space-4) var(--erp-space-5); border-bottom: 1px solid var(--erp-rule);
  background: var(--erp-surface-alt); border-radius: var(--erp-radius-panel) var(--erp-radius-panel) 0 0; }
.erp-fsection-icon { width: 36px; height: 36px; border-radius: 9px; background: var(--erp-primary-soft); color: var(--erp-primary); display: inline-flex;
  align-items: center; justify-content: center; flex-shrink: 0; }
.erp-fsection-icon .erp-icon { width: 1.125rem; height: 1.125rem; }
.erp-fsection-head h2 { font-size: var(--erp-text-lg); margin: 0; }
.erp-fsection-head p { margin: 2px 0 0; color: var(--erp-ink-muted); font-size: var(--erp-text-sm); }
.erp-fsection-body { padding: var(--erp-space-5); }
.erp-fsection-body > .row:last-child > [class*="col"] > .mb-3:last-child { margin-bottom: 0 !important; }
.erp-fsub { font-size: var(--erp-text-md); font-weight: 600; margin: var(--erp-space-4) 0 var(--erp-space-3); display: flex; align-items: center; gap: var(--erp-space-2); }
.erp-fsub:first-child { margin-top: 0; }
.erp-fsub::after { content: ""; flex: 1; height: 1px; background: var(--erp-rule); }
.erp-person-block { border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-panel); padding: var(--erp-space-4); background: var(--erp-surface); }
.erp-person-block + .erp-person-block { margin-top: var(--erp-space-4); }
.erp-actionbar { position: sticky; bottom: 0; z-index: 20; display: flex; flex-wrap: wrap; align-items: center; gap: var(--erp-space-2); margin-top: var(--erp-space-2);
  padding: var(--erp-space-3) var(--erp-space-4); background: color-mix(in srgb, var(--erp-surface) 92%, transparent); backdrop-filter: blur(6px);
  border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-panel); box-shadow: var(--erp-shadow-1); }
.erp-actionbar-note { color: var(--erp-ink-muted); font-size: var(--erp-text-sm); margin-right: auto; display: flex; align-items: center; gap: var(--erp-space-2); }
.erp-actionbar-dirty { color: var(--erp-warning); font-weight: 500; display: none; }
form[data-erp-dirty] .erp-actionbar-dirty { display: inline; }
.erp-error-summary { border: 1px solid var(--erp-danger); border-left-width: 4px; background: var(--erp-danger-soft); border-radius: var(--erp-radius-panel);
  padding: var(--erp-space-4) var(--erp-space-5); margin-bottom: var(--erp-space-5); }
.erp-error-summary h2 { font-size: var(--erp-text-md); margin: 0 0 var(--erp-space-2); color: var(--erp-danger); display: flex; gap: var(--erp-space-2); align-items: center; }
.erp-error-summary ul { margin: 0; padding-left: 1.25rem; }
.erp-error-summary a { color: var(--erp-ink); }
@media (max-width: 991.98px) {
  .erp-formpage { grid-template-columns: minmax(0, 1fr); gap: var(--erp-space-3); }
  .erp-fnav { top: 56px; z-index: 15; margin: 0 calc(-1 * var(--erp-space-4)); padding: var(--erp-space-2) var(--erp-space-4); background: var(--erp-paper);
    border-bottom: 1px solid var(--erp-rule); overflow-x: auto; }
  .erp-fnav ol { display: flex; gap: var(--erp-space-2); width: max-content; }
  .erp-fnav a { border-left: 0; border: 1px solid var(--erp-rule); border-radius: 999px; background: var(--erp-surface); white-space: nowrap; padding: .375rem .75rem; }
  .erp-fnav a.is-current { border-color: var(--erp-primary); }
  .erp-fnav-note { display: none; }
  .erp-fsection-head, .erp-fsection-body { padding-left: var(--erp-space-4); padding-right: var(--erp-space-4); }
  .erp-actionbar { margin-left: calc(-1 * var(--erp-space-4)); margin-right: calc(-1 * var(--erp-space-4)); border-radius: 0; border-left: 0; border-right: 0; }
  .erp-actionbar .btn-primary { flex: 1; }
}

/* image fields */
.erp-image-field { display: flex; gap: var(--erp-space-4); align-items: flex-start; margin-bottom: var(--erp-space-3); }
.erp-image-frame { width: 112px; height: 136px; flex-shrink: 0; border-radius: var(--erp-radius-panel); border: 1px dashed var(--erp-rule-strong);
  background: var(--erp-surface-alt); display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
.erp-image-frame--wide { width: 200px; height: 96px; }
.erp-image-frame--square { width: 112px; height: 112px; }
.erp-image-frame img { width: 100%; height: 100%; object-fit: cover; }
.erp-image-frame--wide img, .erp-image-frame--square img { object-fit: contain; padding: 6px; background: #FFFFFF; }
.erp-image-frame .erp-image-empty { color: var(--erp-ink-muted); display: flex; flex-direction: column; align-items: center; gap: 4px; font-size: var(--erp-text-xs); text-align: center; padding: 6px; }
.erp-image-frame .erp-image-empty .erp-icon { width: 1.75rem; height: 1.75rem; opacity: .7; }
.erp-image-frame.is-filled { border-style: solid; border-color: var(--erp-rule); }
.erp-image-frame.is-removed img { opacity: .25; filter: grayscale(1); }
.erp-image-controls { flex: 1; min-width: 0; }
.erp-image-controls input[type="file"] { max-width: 360px; }
.erp-image-actions { display: flex; flex-wrap: wrap; gap: var(--erp-space-2); margin-top: var(--erp-space-2); }
@media (max-width: 575.98px) { .erp-image-field { flex-direction: column; } }

/* photos in records */
.erp-photo { width: 96px; height: 116px; border-radius: var(--erp-radius-panel); object-fit: cover; border: 1px solid var(--erp-rule); background: var(--erp-surface-alt); flex-shrink: 0; }
.erp-photo-sm { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; border: 1px solid var(--erp-rule); flex-shrink: 0; }
.erp-initials { width: 40px; height: 40px; border-radius: 50%; background: var(--erp-primary-soft); color: var(--erp-primary); display: inline-flex;
  align-items: center; justify-content: center; font-weight: 600; font-size: var(--erp-text-sm); flex-shrink: 0; }
.erp-initials--lg { width: 96px; height: 116px; border-radius: var(--erp-radius-panel); font-size: var(--erp-text-2xl); }
.erp-namecell { display: flex; align-items: center; gap: var(--erp-space-3); }
.erp-record-head { display: flex; gap: var(--erp-space-4); align-items: center; margin-bottom: var(--erp-space-4); }

/* date picker */
.erp-date-wrap { position: relative; display: flex; }
.erp-date-wrap .form-control { border-top-right-radius: 0; border-bottom-right-radius: 0; }
.erp-date-btn { border: 1px solid var(--erp-control-border); border-left: 0; background: var(--erp-surface-alt); color: var(--erp-ink-muted); padding: 0 .75rem;
  border-radius: 0 var(--erp-radius-control) var(--erp-radius-control) 0; }
.erp-date-btn:hover { color: var(--erp-primary); }
.erp-cal { position: absolute; z-index: 1060; top: calc(100% + 4px); right: 0; width: 300px; background: var(--erp-surface); border: 1px solid var(--erp-rule);
  border-radius: var(--erp-radius-overlay); box-shadow: var(--erp-shadow-2); padding: var(--erp-space-3); }
.erp-cal-head { display: flex; align-items: center; gap: var(--erp-space-2); margin-bottom: var(--erp-space-2); }
.erp-cal-head select { min-height: 32px; padding-top: .125rem; padding-bottom: .125rem; font-size: var(--erp-text-sm); }
.erp-cal-head button { border: 0; background: transparent; color: var(--erp-ink); width: 32px; height: 32px; border-radius: var(--erp-radius-control); }
.erp-cal-head button:hover { background: var(--erp-surface-alt); }
.erp-cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; text-align: center; }
.erp-cal-grid .erp-cal-dow { font-size: var(--erp-text-xs); color: var(--erp-ink-muted); padding: 4px 0; }
.erp-cal-grid button { border: 0; background: transparent; color: var(--erp-ink); height: 34px; border-radius: var(--erp-radius-control); font-variant-numeric: tabular-nums; font-size: var(--erp-text-sm); }
.erp-cal-grid button:hover, .erp-cal-grid button:focus-visible { background: var(--erp-primary-soft); color: var(--erp-primary); outline: none; }
.erp-cal-grid button.is-today { box-shadow: inset 0 0 0 1px var(--erp-primary); }
.erp-cal-grid button.is-selected { background: var(--erp-primary); color: var(--erp-on-primary); }
.erp-cal-foot { display: flex; justify-content: space-between; margin-top: var(--erp-space-2); }


/* streams */
.erp-panel--accent { border-top: 3px solid var(--erp-marigold-bright); }
.erp-stream-card { border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-panel); padding: var(--erp-space-4); background: var(--erp-surface-alt); height: 100%; }
.erp-stream-card.is-off { opacity: .7; }
.erp-stream-group { border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-panel); padding: var(--erp-space-3) var(--erp-space-4); background: var(--erp-surface-alt); }
.erp-subject-list { display: flex; flex-wrap: wrap; gap: var(--erp-space-2); list-style: none; padding: 0; margin: 0; }
.erp-subject-list li { border: 1px solid var(--erp-rule); border-radius: 999px; padding: .125rem .625rem; font-size: var(--erp-text-sm); background: var(--erp-surface); }
.erp-subject-list li.is-compulsory { border-color: var(--erp-primary); color: var(--erp-primary); }
/* Bootstrap makes .offcanvas-lg transparent (!important) from 992px; the sidebar keeps its own colour. */
@media (min-width: 992px) { .erp-shell .erp-sidebar.offcanvas-lg { background-color: var(--erp-sidebar-bg) !important; } }
.erp-cal.is-up { top: auto; bottom: calc(100% + 4px); }

/* segmented choice (promotion) */
.erp-segmented { display: inline-flex; flex-wrap: wrap; gap: 0; border: 0; margin: 0; padding: 0; }
.erp-segmented .btn { border-radius: 0; margin-left: -1px; }
.erp-segmented .btn:first-of-type { border-radius: var(--erp-radius-control) 0 0 var(--erp-radius-control); margin-left: 0; }
.erp-segmented .btn:last-of-type { border-radius: 0 var(--erp-radius-control) var(--erp-radius-control) 0; }
.erp-segmented .btn-check:checked + .btn { background: var(--erp-primary); border-color: var(--erp-primary); color: var(--erp-on-primary); }
@media (max-width: 575.98px) { .erp-segmented .btn { padding: .25rem .5rem; font-size: var(--erp-text-xs); } }

/* ------------------------------------------------------------------ printable certificates (layouts/print) */
.erp-print-body { background: var(--erp-paper); }
.erp-print-toolbar { position: sticky; top: 0; z-index: 10; display: flex; flex-wrap: wrap; align-items: flex-start; gap: var(--erp-space-2); padding: var(--erp-space-3) var(--erp-space-4);
  background: var(--erp-surface); border-bottom: 1px solid var(--erp-rule); box-shadow: var(--erp-shadow-1); }
.erp-print-cancel { flex-basis: 100%; max-width: 640px; margin-left: auto; }
.erp-certificate { position: relative; width: 210mm; min-height: 297mm; margin: var(--erp-space-5) auto; padding: 16mm 16mm 14mm; background: #FFFFFF; color: #111522;
  box-shadow: var(--erp-shadow-2); border: 1px solid #C9CEDD; font-size: 10.5pt; line-height: 1.45; }
.erp-certificate::before { content: ""; position: absolute; inset: 7mm; border: 1.5pt double #2C3570; pointer-events: none; }
.erp-certificate-head { display: flex; gap: 6mm; align-items: center; justify-content: center; text-align: center; padding-bottom: 4mm; border-bottom: 1pt solid #2C3570; }
.erp-certificate-logo { width: 24mm; height: 24mm; object-fit: contain; }
.erp-certificate-school { font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: 20pt; font-weight: 700; color: #1E2766; margin: 0; line-height: 1.15; }
.erp-certificate-place { margin: 1mm 0 0; font-size: 9.5pt; color: #3A4060; white-space: pre-wrap; }
.erp-certificate-title { font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif; text-align: center; font-size: 17pt; font-weight: 600; letter-spacing: .04em; margin: 6mm 0 3mm; color: #1E2766; }
.erp-certificate-ids { display: flex; justify-content: space-between; gap: 4mm; font-size: 10pt; margin-bottom: 4mm; }
.erp-certificate-fields { margin: 0; padding-left: 7mm; }
.erp-certificate-fields li { padding: 1.6mm 0; border-bottom: .5pt dotted #9AA0B8; }
.erp-certificate-fields li::marker { color: #545B7C; font-variant-numeric: tabular-nums; }
.erp-certificate-label { display: inline-block; width: 46%; vertical-align: top; color: #3A4060; padding-right: 3mm; }
.erp-certificate-value { display: inline-block; width: 54%; vertical-align: top; font-weight: 600; }
.erp-certificate-signs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8mm; margin-top: 12mm; text-align: center; font-size: 10pt; align-items: start; }
.erp-certificate-signspace { display: flex; height: 18mm; align-items: flex-end; justify-content: center; }
.erp-certificate-line { display: block; border-top: .75pt solid #111522; margin-bottom: 1.5mm; }
.erp-certificate-sign { display: block; max-height: 17mm; max-width: 100%; object-fit: contain; }
.erp-certificate-void { position: absolute; top: 40%; left: 0; right: 0; text-align: center; font-size: 72pt; font-weight: 700; color: rgba(185, 28, 28, .18);
  transform: rotate(-24deg); pointer-events: none; margin: 0; }
@media screen and (max-width: 860px) {
  .erp-certificate { width: auto; min-height: 0; margin: var(--erp-space-3); padding: var(--erp-space-5) var(--erp-space-4); }
  .erp-certificate::before { inset: 6px; }
  .erp-certificate-label, .erp-certificate-value { display: block; width: auto; }
  .erp-certificate-signs { grid-template-columns: 1fr; }
}
@media print {
  @page { size: A4; margin: 0; }
  .erp-print-toolbar, .toast-container { display: none !important; }
  .erp-print-body { background: #FFFFFF; }
  .erp-certificate { margin: 0; box-shadow: none; border: 0; width: 210mm; min-height: 0; height: 296mm; overflow: hidden; break-after: avoid; }
  .erp-certificate { padding: 13mm 15mm 12mm; font-size: 10pt; }
  .erp-certificate-fields li { padding: 1.1mm 0; }
  .erp-certificate-title { margin: 4mm 0 2mm; }
  .erp-certificate-signs { margin-top: 6mm; }
  .erp-certificate-signspace { height: 15mm; }
  main { margin: 0; padding: 0; }
}
.erp-left-banner { display: flex; flex-wrap: wrap; gap: var(--erp-space-3); align-items: flex-start; padding: var(--erp-space-4); border: 1px solid var(--erp-rule-strong);
  border-left: 4px solid var(--erp-neutral); border-radius: var(--erp-radius-panel); background: var(--erp-surface-alt); }

/* documents checklist */
.erp-doc-list { display: flex; flex-direction: column; }
.erp-doc-row { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, 1fr); gap: var(--erp-space-3); align-items: start; padding: var(--erp-space-3) 0; border-bottom: 1px solid var(--erp-rule); }
.erp-doc-row:first-child { padding-top: 0; }
.erp-doc-row:last-child { border-bottom: 0; padding-bottom: 0; }
@media (max-width: 767.98px) { .erp-doc-row { grid-template-columns: minmax(0, 1fr); gap: var(--erp-space-2); } }
.erp-doc-summary { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--erp-space-1) var(--erp-space-3); font-size: var(--erp-text-sm); }
.erp-doc-summary li { display: flex; gap: var(--erp-space-2); align-items: center; }
.erp-doc-summary .is-in { color: var(--erp-success); }
.erp-doc-summary .is-out { color: var(--erp-ink-muted); }
.erp-sibling-box { border: 1px solid var(--erp-primary); border-left-width: 4px; border-radius: var(--erp-radius-panel); background: var(--erp-primary-soft); padding: var(--erp-space-4); margin-bottom: var(--erp-space-4); }
.erp-sibling-choice + .erp-sibling-choice { border-top: 1px solid var(--erp-rule); padding-top: var(--erp-space-3); margin-top: var(--erp-space-3); }

/* attendance: month grid */
.erp-month { font-size: var(--erp-text-xs); }
.erp-month th, .erp-month td { padding: .3rem .25rem; }
.erp-month-day { text-align: center; min-width: 1.9rem; font-variant-numeric: tabular-nums; }
.erp-month-day span { display: block; line-height: 1.1; }
.erp-month-dow { color: var(--erp-ink-muted); font-weight: 400; }
.erp-month-day.is-today { color: var(--erp-primary); box-shadow: inset 0 -2px 0 var(--erp-primary); }
.erp-month-cell { text-align: center; font-weight: 600; }
.erp-month .is-off { background: var(--erp-surface-alt); color: var(--erp-ink-muted); }
.erp-month-cell.is-p, .erp-month-cell.is-l { color: var(--erp-success); }
.erp-month-cell.is-a { color: var(--erp-danger); background: var(--erp-danger-soft); }
.erp-month-cell.is-h { color: var(--erp-info); }
.erp-month-cell.is-v { color: var(--erp-leave); }
.erp-att-note { min-width: 9rem; }
@media print { .erp-month { font-size: 8pt; } }
.erp-att-percent { font-size: var(--erp-text-2xl); font-weight: 600; font-variant-numeric: tabular-nums; color: var(--erp-success); margin-right: var(--erp-space-2); }
.erp-att-percent.is-low { color: var(--erp-danger); }
/* Toasts never widen the page on phones. */
@media (max-width: 575.98px) {
  .toast-container { left: 0; right: 0; max-width: 100vw; display: flex; flex-direction: column; align-items: center; }
  .toast-container .toast { max-width: calc(100vw - 2rem); }
}

/* exams (Phase 6) */
.erp-facts--inline { display: flex; flex-wrap: wrap; gap: var(--erp-space-3) var(--erp-space-6, 2rem); }
.erp-facts--inline > div { display: flex; flex-direction: column; gap: .125rem; }
.erp-check-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(7.5rem, 1fr)); gap: var(--erp-space-2) var(--erp-space-4); }
.erp-register-link { display: inline-flex; align-items: center; gap: .25rem; text-decoration: none; }
.erp-register-link:hover .erp-chip { text-decoration: underline; }
.erp-mark-input { width: 6.5rem; text-align: right; font-variant-numeric: tabular-nums; text-transform: uppercase; }
@media (pointer: coarse) { .erp-mark-input { min-height: 44px; } }
.erp-mark-feedback { font-size: var(--erp-text-sm); color: var(--erp-danger); margin-top: .25rem; }
.erp-marks-table { min-width: 0 !important; }
.erp-input-num { width: 5.5rem; text-align: right; font-variant-numeric: tabular-nums; }
.erp-input-date { width: 8.5rem; font-variant-numeric: tabular-nums; }
.erp-exam-subjects th, .erp-exam-subjects td { white-space: nowrap; }
.erp-results-table td, .erp-results-table th { white-space: nowrap; }
.erp-results-table .erp-remark-cell { min-width: 16rem; white-space: normal; }
.erp-below { color: var(--erp-danger); font-weight: 600; }
.erp-grade-table td:last-child { min-width: 12rem; }

/* report card: shares the certificate's page and frame */
.erp-reportcard-sub { text-align: center; margin: -1mm 0 4mm; font-size: 11pt; color: #3A4060; }
.erp-reportcard-student { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.2mm 8mm; margin: 0 0 5mm; font-size: 10pt; }
.erp-reportcard-student > div { display: flex; gap: 2mm; border-bottom: .5pt dotted #9AA0B8; padding-bottom: .8mm; }
.erp-reportcard-student dt { font-weight: 400; color: #3A4060; white-space: nowrap; }
.erp-reportcard-student dd { margin: 0; font-weight: 600; }
.erp-reportcard-table { width: 100%; border-collapse: collapse; font-size: 10pt; margin-bottom: 4mm; }
.erp-reportcard-table--half { width: 60%; }
.erp-reportcard-table caption { caption-side: top; font-weight: 700; color: #1E2766; padding: 0 0 1.5mm; font-size: 10.5pt; }
.erp-reportcard-table th, .erp-reportcard-table td { border: .75pt solid #7A80A0; padding: 1.4mm 2.5mm; text-align: left; }
.erp-reportcard-table thead th { background: #EEF0F7; font-weight: 600; }
.erp-reportcard-table tbody th { font-weight: 500; }
.erp-reportcard-table tfoot th, .erp-reportcard-table tfoot td { font-weight: 700; background: #F6F7FB; }
.erp-reportcard-table .erp-num { text-align: right; font-variant-numeric: tabular-nums; }
.erp-reportcard-summary { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: .75pt solid #7A80A0; margin-bottom: 3mm; }
.erp-reportcard-summary > div { padding: 2mm 3mm; border-left: .75pt solid #7A80A0; display: flex; flex-direction: column; font-size: 9pt; color: #3A4060; }
.erp-reportcard-summary > div:first-child { border-left: 0; }
.erp-reportcard-summary strong { font-size: 12pt; color: #111522; font-variant-numeric: tabular-nums; }
.erp-reportcard-note { font-size: 9pt; margin: 0 0 4mm; }
.erp-reportcard-remark { border: .75pt solid #7A80A0; padding: 2mm 3mm; min-height: 20mm; margin-bottom: 2mm; }
.erp-reportcard-label { font-weight: 700; color: #1E2766; margin: 0 0 1mm; font-size: 10pt; }
.erp-reportcard-remark-text { margin: 0; white-space: pre-wrap; }
.erp-reportcard-scale { font-size: 8pt; color: #545B7C; margin: 4mm 0 0; text-align: center; }
.erp-reportcard-draft { transform: rotate(-24deg); }
.erp-reportcard .erp-certificate-signs { margin-top: 8mm; }
@media screen and (max-width: 860px) {
  .erp-reportcard-student { grid-template-columns: 1fr; }
  .erp-reportcard-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .erp-reportcard-summary > div:nth-child(3) { border-left: 0; }
  .erp-reportcard-summary > div:nth-child(n+3) { border-top: .75pt solid #7A80A0; }
  .erp-reportcard-table--half { width: 100%; }
}
@media print {
  .erp-reportcard { break-after: page; }
  .erp-reportcard:last-of-type { break-after: auto; }
}
.erp-result-list li + li { margin-top: var(--erp-space-3); padding-top: var(--erp-space-3); border-top: 1px solid var(--erp-rule); }
/* Hidden labels inside a scrolled table stay inside it (otherwise they widen the page on phones). */
.erp-register-scroll, .table-responsive { position: relative; }

/* fees (Phase 7) */
.erp-input-medium { max-width: 18rem; }
.erp-search-btn { margin-top: 1.9rem; }
.erp-list--flush > li { padding-left: 0; padding-right: 0; }
.erp-list-current { background: var(--erp-primary-soft); box-shadow: inset 3px 0 0 var(--erp-primary); }
.erp-row-muted > * { color: var(--erp-ink-muted); }
.erp-disclosure--inline > summary { margin-left: auto; }
.erp-disclosure--inline[open] { min-width: 16rem; }
.erp-fee-total { font-size: 2rem; font-weight: 600; font-variant-numeric: tabular-nums; line-height: 1.1; }
.erp-fee-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: 1px; background: var(--erp-rule); border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-panel); overflow: hidden; }
.erp-fee-summary > div { background: var(--erp-surface); padding: var(--erp-space-3) var(--erp-space-4); display: flex; flex-direction: column; gap: .125rem; }
.erp-fee-summary span { font-size: var(--erp-text-sm); color: var(--erp-ink-muted); }
.erp-fee-summary strong { font-size: 1.25rem; font-variant-numeric: tabular-nums; }
.erp-fee-summary .is-owing strong { color: var(--erp-danger); }
.erp-collect-items li { padding: var(--erp-space-2) 0 var(--erp-space-2) 1.75rem; border-bottom: 1px solid var(--erp-rule); }
.erp-collect-items li:last-child { border-bottom: 0; }
.erp-collect-items .form-check-label { width: 100%; }
@media (max-width: 575.98px) { .erp-search-btn { margin-top: 1.9rem; } }

/* fee receipt in three printed sizes (fees upgrade, 0042). The sheet is drawn at its real size on
   screen and on paper: A5 148 × 210 mm, 6 × 8 inch 152.4 × 203.2 mm, a 3-inch (76.2 mm) thermal roll as
   long as the receipt. A receipt longer than the sheet runs on to a second sheet; nothing is cut off. */
.erp-receipt { position: relative; width: 148mm; min-height: 200mm; margin: var(--erp-space-5) auto; padding: 10mm 11mm; background: #FFFFFF; color: #111522;
  box-shadow: 0 2px 12px rgba(17, 21, 34, .12); font-size: 10pt; display: flex; flex-direction: column; }
.erp-receipt--6x8 { width: 152.4mm; min-height: 203.2mm; padding: 9mm 10mm; }
.erp-receipt--thermal { width: 76.2mm; min-height: 0; padding: 3mm 3mm 5mm; font-size: 8.5pt; line-height: 1.3; font-family: "IBM Plex Sans", Arial, sans-serif; }
.erp-receipt-head { display: flex; gap: 4mm; align-items: center; justify-content: center; text-align: center; padding-bottom: 3mm; border-bottom: 1pt solid #2C3570; }
.erp-receipt-logo { width: 16mm; height: 16mm; object-fit: contain; }
.erp-receipt-school { font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: 15pt; font-weight: 700; color: #1E2766; margin: 0; line-height: 1.15; }
.erp-receipt-place { margin: .6mm 0 0; font-size: 8.5pt; color: #3A4060; }
.erp-receipt-title { text-align: center; font-size: 12pt; font-weight: 700; margin: 4mm 0 3mm; color: #1E2766; }
.erp-receipt-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2mm 6mm; margin: 0 0 4mm; }
.erp-receipt-meta > div { display: flex; gap: 2mm; min-width: 0; }
.erp-receipt-meta dt { font-weight: 400; color: #3A4060; white-space: nowrap; }
.erp-receipt-meta dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }
.erp-receipt-table { width: 100%; border-collapse: collapse; margin-bottom: 3mm; }
.erp-receipt-table th, .erp-receipt-table td { border: .75pt solid #7A80A0; padding: 1.4mm 2mm; text-align: left; vertical-align: top; }
.erp-receipt-table thead th { background: #EEF0F7; font-size: 8.5pt; font-weight: 600; }
.erp-receipt-table thead { display: table-header-group; }
.erp-receipt-table tr { break-inside: avoid; }
.erp-receipt-table tfoot th, .erp-receipt-table tfoot td { font-weight: 700; }
.erp-receipt-table .erp-num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.erp-receipt-table .is-now { font-weight: 700; }
.erp-receipt-period { color: #545B7C; }
.erp-receipt-total { display: flex; justify-content: space-between; align-items: baseline; gap: 3mm; padding: 2mm 0; border-top: 1pt solid #2C3570; border-bottom: 1pt solid #2C3570; margin-bottom: 2mm; }
.erp-receipt-total strong { font-size: 13pt; font-variant-numeric: tabular-nums; }
.erp-receipt-words { font-weight: 600; margin: 0 0 2mm; }
.erp-receipt-mode { margin: 0 0 1.5mm; color: #3A4060; }
.erp-receipt-account { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 2mm 0 3mm; border: .75pt solid #7A80A0; }
.erp-receipt-account > div { padding: 1.5mm 2mm; border-left: .75pt solid #7A80A0; }
.erp-receipt-account > div:first-child { border-left: 0; }
.erp-receipt-account dt { font-weight: 400; font-size: 8pt; color: #3A4060; }
.erp-receipt-account dd { margin: 0; font-weight: 700; font-variant-numeric: tabular-nums; }
.erp-receipt-footnote { font-size: 8pt; color: #3A4060; margin: 0 0 1.5mm; }
.erp-receipt-foot { display: flex; justify-content: space-between; align-items: flex-end; gap: 4mm; margin-top: auto; padding-top: 14mm; break-inside: avoid; }
.erp-receipt-sign { border-top: .75pt solid #111522; min-width: 40mm; text-align: center; padding-top: 1mm; }
.erp-receipt-void { position: absolute; top: 38%; left: 0; right: 0; text-align: center; font-size: 48pt; font-weight: 700; color: rgba(185, 28, 28, .2); transform: rotate(-20deg); margin: 0; pointer-events: none; }
.erp-receipt-note { max-width: 148mm; margin: var(--erp-space-4) auto 0; padding: var(--erp-space-3) var(--erp-space-4); border: 1px solid var(--erp-rule-strong); border-left: 4px solid var(--erp-warning); background: var(--erp-surface); border-radius: var(--erp-radius-panel); }
.erp-receipt-formats { display: inline-flex; gap: var(--erp-space-1); align-items: center; }
/* thermal: one column, black only (thermal printers have no grey), no boxes */
.erp-receipt--thermal, .erp-receipt--thermal * { color: #000 !important; }
.erp-receipt--thermal .erp-receipt-head { flex-direction: column; gap: 1mm; padding-bottom: 2mm; border-bottom: 1pt dashed #000; }
.erp-receipt--thermal .erp-receipt-logo { width: 12mm; height: 12mm; }
.erp-receipt--thermal .erp-receipt-school { font-family: inherit; font-size: 11pt; }
.erp-receipt--thermal .erp-receipt-place { font-size: 7.5pt; }
.erp-receipt--thermal .erp-receipt-title { font-size: 10pt; margin: 2mm 0; letter-spacing: .02em; }
.erp-receipt--thermal .erp-receipt-meta { grid-template-columns: 1fr; gap: .4mm; margin-bottom: 2mm; }
.erp-receipt--thermal .erp-receipt-meta > div { justify-content: space-between; }
.erp-receipt--thermal .erp-receipt-meta dd { text-align: right; }
.erp-receipt--thermal .erp-receipt-table th, .erp-receipt--thermal .erp-receipt-table td { border: 0; padding: .6mm 0; }
.erp-receipt--thermal .erp-receipt-table thead th { background: none; border-bottom: .75pt solid #000; font-size: 7.5pt; }
.erp-receipt--thermal .erp-receipt-table .erp-receipt-item td { padding-top: 1.2mm; font-weight: 600; }
.erp-receipt--thermal .erp-receipt-table .erp-receipt-figures td { border-bottom: .5pt dashed #000; }
.erp-receipt--thermal .erp-receipt-table tfoot th, .erp-receipt--thermal .erp-receipt-table tfoot td { border-top: .75pt solid #000; padding-top: 1mm; }
.erp-receipt--thermal .erp-receipt-total { border-width: 1pt 0; border-style: dashed; border-color: #000; }
.erp-receipt--thermal .erp-receipt-total strong { font-size: 12pt; }
.erp-receipt--thermal .erp-receipt-account { grid-template-columns: 1fr; border: 0; }
.erp-receipt--thermal .erp-receipt-account > div { display: flex; justify-content: space-between; border: 0; padding: .3mm 0; }
.erp-receipt--thermal .erp-receipt-foot { flex-direction: column; align-items: stretch; padding-top: 10mm; gap: 2mm; }
.erp-receipt--thermal .erp-receipt-sign { min-width: 0; }
.erp-receipt--thermal .erp-receipt-void { font-size: 28pt; }
@media screen and (max-width: 600px) {
  .erp-receipt:not(.erp-receipt--thermal) { width: auto; min-height: 0; margin: var(--erp-space-3); padding: var(--erp-space-4); }
  .erp-receipt:not(.erp-receipt--thermal) .erp-receipt-meta { grid-template-columns: 1fr; }
  .erp-receipt-note { margin: var(--erp-space-3); }
  .erp-receipt-table { font-size: 8.5pt; }
}
@media print {
  .erp-receipt { margin: 0; box-shadow: none; }
  .erp-receipt--a5 { width: 148mm; min-height: 209mm; }
  .erp-receipt--6x8 { width: 152.4mm; min-height: 202mm; }
  .erp-receipt--thermal { width: 76.2mm; }
  .erp-receipt-note { display: none; }
}
.erp-portal-line { display: flex; flex-wrap: wrap; align-items: center; gap: var(--erp-space-2); padding-top: var(--erp-space-2); border-top: 1px dashed var(--erp-rule); }

/* parent portal (Phase 8) */
.erp-child-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr)); gap: var(--erp-space-4); }
.erp-child-card { display: flex; flex-direction: column; gap: var(--erp-space-3); padding: var(--erp-space-4); background: var(--erp-surface); border: 1px solid var(--erp-rule);
  border-radius: var(--erp-radius-panel); color: inherit; text-decoration: none; box-shadow: var(--erp-shadow, none); }
.erp-child-card:hover { border-color: var(--erp-primary); }
.erp-child-card:focus-visible { outline: 2px solid var(--erp-primary); outline-offset: 2px; }
.erp-child-head { display: flex; gap: var(--erp-space-3); align-items: center; }
.erp-child-name { font-size: 1.15rem; font-weight: 600; margin: 0; color: var(--bs-link-color); }
.erp-photo-md { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; flex: none; }
.erp-initials--md { width: 64px; height: 64px; font-size: 1.25rem; flex: none; }
.erp-child-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--erp-space-2); margin: 0; padding-top: var(--erp-space-3); border-top: 1px solid var(--erp-rule); }
.erp-child-stats dt { font-size: var(--erp-text-sm); font-weight: 400; color: var(--erp-ink-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.erp-child-stats dd { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.erp-child-stats .is-owing dd { color: var(--erp-danger); }
.erp-child-banner { display: flex; flex-wrap: wrap; gap: var(--erp-space-4); align-items: center; }
.erp-fee-summary--flat { border-width: 0 0 1px; border-radius: 0; }
.erp-absence-list li, .erp-receipt-list li { padding: var(--erp-space-1, .25rem) 0; }

/* notices and messages (Phase 9). A notice reads like the circular sheet sent home: number and date
   on one line, the title, then the text with its own line breaks kept. Urgent ones carry a red edge. */
.erp-notice { background: var(--erp-surface); border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-panel); padding: var(--erp-space-4) var(--erp-space-5, 1.5rem); }
.erp-notice.is-urgent { border-left: 4px solid var(--erp-danger); }
.erp-notice-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--erp-space-2); color: var(--erp-ink-muted); font-size: var(--erp-text-sm); font-variant-numeric: tabular-nums; }
.erp-notice-title { font-size: 1.35rem; margin: var(--erp-space-2) 0 var(--erp-space-3); }
.erp-notice-body { white-space: pre-line; max-width: 70ch; overflow-wrap: anywhere; }
.erp-notice-list > li { display: flex; flex-wrap: wrap; gap: var(--erp-space-2) var(--erp-space-3); align-items: baseline; }
.erp-notice-list > li.is-urgent { box-shadow: inset 4px 0 0 var(--erp-danger); }
.erp-notice-list .erp-notice-no { font-variant-numeric: tabular-nums; color: var(--erp-ink-muted); min-width: 7.5rem; font-size: var(--erp-text-sm); }
.erp-notice-list .erp-notice-link { flex: 1 1 16rem; font-weight: 500; }
.erp-message-text { white-space: pre-line; overflow-wrap: anywhere; max-width: 60ch; font-size: var(--erp-text-sm); }
.erp-counter { font-size: var(--erp-text-sm); color: var(--erp-ink-muted); font-variant-numeric: tabular-nums; }
.erp-text-template + .erp-text-template { border-top: 1px solid var(--erp-rule); }

/* taking a payment: amount per item (fees upgrade, 0042) */
.erp-pay-table .erp-pay-pick { width: 2.5rem; }
.erp-pay-table .erp-pay-now { width: 10rem; }
.erp-pay-table .erp-pay-now .form-control { text-align: right; }
.erp-pay-table .erp-pay-now.is-off .form-control { opacity: .45; }
.erp-pay-summary output { font-size: 1.05rem; }
.erp-schedule-row { display: grid; grid-template-columns: repeat(3, minmax(8.5rem, 1fr)); gap: var(--erp-space-2); }
.erp-schedule-months { margin-top: var(--erp-space-2); }
.erp-month-grid { display: grid; grid-template-columns: repeat(6, minmax(3.5rem, 1fr)); gap: 0 var(--erp-space-2); }
@media (max-width: 575.98px) {
  .erp-schedule-row { grid-template-columns: 1fr; }
  .erp-month-grid { grid-template-columns: repeat(4, 1fr); }
}
.erp-structure-schedule { min-width: 30rem; }
.erp-format-choices { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: var(--erp-space-3); }
.erp-format-choice { border: 1px solid var(--erp-rule); border-radius: var(--erp-radius-control); padding: var(--erp-space-3) var(--erp-space-3) var(--erp-space-3) 2.25rem; margin: 0; }

/* filter rows (Fee dues, collections): labels on one line, every control the same height and bottom
   edge, the button right after the filters; wraps into aligned rows on narrow screens. */
.erp-filters { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--erp-space-3) var(--erp-space-4); }
.erp-filters .mb-3 { margin-bottom: 0 !important; }
.erp-filters .form-label { white-space: nowrap; }
.erp-filter { flex: 0 1 12rem; min-width: 10rem; }
.erp-filter--date { flex-basis: 11.5rem; }
.erp-filter--wide { flex: 1 1 15rem; max-width: 22rem; }
.erp-filter--check, .erp-filter--action { flex: 0 0 auto; min-width: 0; }
.erp-filter--check { display: flex; align-items: center; min-height: calc(1.5em + .75rem + 2px); }
.erp-filter--check .form-check { margin: 0; }
.erp-filter--action .btn { min-height: calc(1.5em + .75rem + 2px); }
@media (max-width: 575.98px) {
  .erp-filter, .erp-filter--date, .erp-filter--wide { flex: 1 1 100%; max-width: none; }
  .erp-filter--action, .erp-filter--action .btn { flex: 1 1 100%; width: 100%; }
}