/* ---------- Brand tokens ---------- */
:root {
    --color-primary: #2F6BD8;
    --color-secondary: #D4A646;
    --color-bg: #0B1220;
    --color-text: #F5F5F7;
    --radius: 14px;
    --font-heading: 'Clash Display', 'Hind Siliguri', sans-serif;
    --font-body: 'Hind Siliguri', system-ui, -apple-system, 'Segoe UI', sans-serif;

    /* derived surfaces */
    --color-surface: #111A2C;
    --color-surface-2: #17233A;
    --color-border: #22314D;
    --color-muted: #93A1B8;
    --color-primary-hover: #2458C2;
    --color-primary-soft: rgba(47, 107, 216, .14);
    --color-secondary-soft: rgba(212, 166, 70, .14);
}

/* Bootstrap dark theme mapped onto the brand tokens */
[data-bs-theme="dark"] {
    --bs-body-bg: var(--color-bg);
    --bs-body-color: var(--color-text);
    --bs-body-font-family: var(--font-body);
    --bs-secondary-color: var(--color-muted);
    --bs-tertiary-bg: var(--color-surface-2);
    --bs-border-color: var(--color-border);
    --bs-border-radius: 10px;
    --bs-border-radius-lg: var(--radius);
    --bs-primary: #2F6BD8;
    --bs-primary-rgb: 47, 107, 216;
    --bs-link-color: #8DB4FF;
    --bs-link-color-rgb: 141, 180, 255;
    --bs-link-hover-color: #B6CFFF;
    --bs-link-hover-color-rgb: 182, 207, 255;
    --bs-emphasis-color: #FFFFFF;
}

body { font-family: var(--font-body); background: var(--color-bg); color: var(--color-text); }
h1, h2, h3, h4, h5, h6, .page-title, .stat-value { font-family: var(--font-heading); letter-spacing: .01em; }
.text-muted { color: var(--color-muted) !important; }

/* ---------- Buttons & form controls ---------- */
.btn { border-radius: 10px; }
.btn-primary {
    --bs-btn-bg: var(--color-primary);
    --bs-btn-border-color: var(--color-primary);
    --bs-btn-hover-bg: var(--color-primary-hover);
    --bs-btn-hover-border-color: var(--color-primary-hover);
    --bs-btn-active-bg: var(--color-primary-hover);
    --bs-btn-active-border-color: var(--color-primary-hover);
    --bs-btn-disabled-bg: var(--color-primary);
    --bs-btn-disabled-border-color: var(--color-primary);
}
.btn-outline-primary {
    --bs-btn-color: #8DB4FF;
    --bs-btn-border-color: var(--color-primary);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--color-primary);
    --bs-btn-hover-border-color: var(--color-primary);
    --bs-btn-active-bg: var(--color-primary-hover);
}
.btn-secondary-accent {
    --bs-btn-color: #1A1405;
    --bs-btn-bg: var(--color-secondary);
    --bs-btn-border-color: var(--color-secondary);
    --bs-btn-hover-color: #1A1405;
    --bs-btn-hover-bg: #C29433;
    --bs-btn-hover-border-color: #C29433;
}
.btn-light {
    --bs-btn-color: var(--color-text);
    --bs-btn-bg: var(--color-surface-2);
    --bs-btn-border-color: var(--color-border);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: #1C2A45;
    --bs-btn-hover-border-color: #2A3B5C;
    --bs-btn-active-bg: #1C2A45;
}
.form-control, .form-select { background-color: var(--color-surface-2); border-color: var(--color-border); }
.form-control:focus, .form-select:focus {
    background-color: var(--color-surface-2);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 .2rem var(--color-primary-soft);
}
.form-check-input { background-color: var(--color-surface-2); border-color: #2E3F60; }
.form-check-input:checked { background-color: var(--color-primary); border-color: var(--color-primary); }
.form-check-input:focus { box-shadow: 0 0 0 .2rem var(--color-primary-soft); border-color: var(--color-primary); }

.pagination {
    --bs-pagination-bg: var(--color-surface);
    --bs-pagination-border-color: var(--color-border);
    --bs-pagination-active-bg: var(--color-primary);
    --bs-pagination-active-border-color: var(--color-primary);
    --bs-pagination-color: #8DB4FF;
    --bs-pagination-hover-bg: var(--color-surface-2);
}

.badge.text-bg-primary { background-color: var(--color-primary) !important; }
.badge-soft-primary { background: var(--color-primary-soft); color: #A9C6FF; }
.badge-soft-accent { background: var(--color-secondary-soft); color: var(--color-secondary); }

/* ---------- Shell ---------- */
.app-shell { display: flex; min-height: 100vh; }

.app-sidebar {
    width: 264px;
    flex-shrink: 0;
    background: #0E1626;
    border-right: 1px solid var(--color-border);
}
@media (min-width: 992px) {
    .app-sidebar { position: sticky; top: 0; height: 100vh; overflow-y: auto; }
}
.app-sidebar.offcanvas-lg { --bs-offcanvas-width: 272px; --bs-offcanvas-bg: #0E1626; }

.sidebar-brand {
    display: flex; align-items: center; gap: .75rem;
    padding: 1.1rem 1rem; border-bottom: 1px solid var(--color-border);
}
.brand-mark {
    width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff; font-size: 1.2rem; flex-shrink: 0;
}
.brand-logo { width: 40px; height: 40px; border-radius: 12px; object-fit: cover; background: #fff; }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }
.brand-text strong { color: #fff; font-family: var(--font-heading); font-weight: 600; font-size: .98rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand-text small { color: var(--color-muted); }

.app-sidebar { display: flex; flex-direction: column; }
.sidebar-nav { padding: .75rem .6rem 1rem; flex: 1 0 auto; }
.sidebar-credit { border-top: 1px solid var(--color-border); padding: .25rem .75rem .5rem; }
.sidebar-credit .vendor-credit { flex-wrap: wrap; text-align: center; }
.nav-heading {
    font-size: .72rem; text-transform: uppercase; letter-spacing: .08em;
    color: #6F7F99; padding: 1rem .75rem .35rem;
}
.sidebar-nav .nav-link {
    display: flex; align-items: center; gap: .7rem;
    color: #C6D0E0; padding: .52rem .75rem; border-radius: 10px; font-size: .93rem;
}
.sidebar-nav .nav-link i { font-size: 1.05rem; width: 1.2rem; text-align: center; color: #8494AE; }
.sidebar-nav .nav-link:hover { background: var(--color-surface-2); color: #fff; }
.sidebar-nav .nav-link.active { background: var(--color-primary-soft); color: #fff; box-shadow: inset 3px 0 0 var(--color-primary); }
.sidebar-nav .nav-link.active i { color: #8DB4FF; }

.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-topbar {
    display: flex; align-items: center; gap: .75rem;
    background: rgba(11, 18, 32, .85); backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    padding: .7rem 1rem; position: sticky; top: 0; z-index: 10;
}
.page-title { font-size: 1.2rem; font-weight: 600; margin: 0; }
.app-content { padding: 1.25rem 1rem 3rem; }
@media (min-width: 768px) { .app-content { padding: 1.5rem 1.75rem 3rem; } }

.avatar {
    width: 30px; height: 30px; border-radius: 50%; display: inline-grid; place-items: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff; font-weight: 600; font-size: .9rem;
}
.dropdown-menu { --bs-dropdown-bg: var(--color-surface-2); --bs-dropdown-border-color: var(--color-border); --bs-dropdown-link-active-bg: var(--color-primary); border-radius: 12px; }

/* ---------- Components ---------- */
.card {
    --bs-card-bg: var(--color-surface);
    --bs-card-border-color: var(--color-border);
    --bs-card-border-radius: var(--radius);
    --bs-card-inner-border-radius: calc(var(--radius) - 1px);
}
.card-header { background: transparent; border-bottom: 1px solid var(--color-border); font-weight: 600; font-family: var(--font-heading); }

.stat-card { display: flex; align-items: center; gap: 1rem; padding: 1.1rem; }
.stat-icon {
    width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
    font-size: 1.35rem; background: var(--color-primary-soft); color: #8DB4FF; flex-shrink: 0;
}
.stat-icon.accent { background: var(--color-secondary-soft); color: var(--color-secondary); }
.stat-value { font-size: 1.6rem; font-weight: 600; line-height: 1.1; color: #fff; }
.stat-label { color: var(--color-muted); font-size: .88rem; }

.shortcut {
    display: flex; align-items: center; gap: .75rem; padding: .9rem 1rem;
    background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius);
    color: var(--color-text); text-decoration: none; height: 100%;
    transition: border-color .15s, transform .15s;
}
.shortcut:hover { border-color: var(--color-primary); color: #fff; transform: translateY(-1px); }
.shortcut i { font-size: 1.3rem; color: #8DB4FF; }

.table { --bs-table-bg: transparent; --bs-table-border-color: var(--color-border); --bs-table-hover-bg: var(--color-surface-2); }
.table > :not(caption) > * > * { padding: .75rem; }
.table thead th { font-size: .8rem; color: var(--color-muted); font-weight: 600; background: var(--color-surface-2); text-transform: uppercase; letter-spacing: .04em; }

.module-group-title { font-size: .78rem; text-transform: uppercase; letter-spacing: .07em; color: var(--color-muted); margin: 1.1rem 0 .5rem; }
.module-check {
    display: flex; align-items: center; gap: .6rem; padding: .6rem .8rem;
    border: 1px solid var(--color-border); border-radius: 12px; background: var(--color-surface-2);
    cursor: pointer; height: 100%;
}
.module-check:has(input:checked) { border-color: var(--color-primary); background: var(--color-primary-soft); }
.module-check i { color: #8DB4FF; }

.perm-table td, .perm-table th { text-align: center; vertical-align: middle; }
.perm-table td:first-child, .perm-table th:first-child { text-align: left; }

.alert { border-radius: 12px; }

/* ---------- License & about ---------- */
.min-w-0 { min-width: 0; }
.license-hero, .about-hero {
    display: flex; flex-wrap: wrap; align-items: center; gap: 1rem;
    padding: 1.4rem; border-radius: var(--radius); color: #fff;
    background: linear-gradient(120deg, #0F2347, #1F4C99);
    border: 1px solid var(--color-border);
}
.license-hero.ok { background: linear-gradient(120deg, #0F3D33, #1F6F5C); }
.license-icon {
    width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; flex-shrink: 0;
    background: rgba(255,255,255,.14); font-size: 1.6rem; color: #fff;
}
.guest-card .license-icon { background: var(--color-primary-soft); color: #A9C6FF; }
.about-hero { background: linear-gradient(120deg, #111A2C, #18366B); }
.about-logo {
    min-width: 72px; max-width: 220px; height: 72px; padding: 10px 14px; border-radius: 16px; background: #fff;
    color: #0B1220; display: flex; align-items: center; justify-content: center; overflow: hidden; flex-shrink: 0;
    font-size: 1.8rem; font-weight: 700;
}
.about-logo img { height: 100%; width: auto; max-width: 100%; object-fit: contain; pointer-events: none; user-select: none; }

/* ---------- Website management ---------- */
.theme-swatch { width: 22px; height: 22px; border-radius: 6px; display: inline-block; }
.icon-choice { cursor: pointer; }
.icon-choice input { display: none; }
.icon-choice i {
    width: 42px; height: 42px; display: grid; place-items: center; border-radius: 10px; font-size: 1.2rem;
    background: var(--color-surface-2); border: 1px solid var(--color-border); color: var(--color-muted);
}
.icon-choice input:checked + i { border-color: var(--color-primary); background: var(--color-primary-soft); color: #fff; }
.album-card { color: var(--color-text); }
.album-card:hover { border-color: var(--color-primary); }
.album-cover {
    height: 140px; border-radius: var(--radius) var(--radius) 0 0; background: var(--color-surface-2) center / cover no-repeat;
    display: grid; place-items: center; font-size: 2rem; color: var(--color-muted);
}
.admin-photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: .6rem; }
.admin-photo { position: relative; }
.admin-photo img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 10px; border: 1px solid var(--color-border); }
.admin-photo form { position: absolute; top: .4rem; right: .4rem; }

/* ---------- Backup ---------- */
.drive-code {
    font-family: ui-monospace, Menlo, monospace; font-size: 1.8rem; font-weight: 700; letter-spacing: .25em;
    padding: .6rem 1rem; border-radius: 12px; background: var(--color-primary-soft); color: #fff; display: inline-block;
}

.google-guide { background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1rem 1.1rem; }
.google-guide ol { padding-left: 1.2rem; }
.google-guide li { margin-bottom: .55rem; line-height: 1.7; }
.google-guide a { color: #A9C6FF; }

/* ---------- Attendance ---------- */
.attendance-roll { width: 2.2rem; text-align: center; font-weight: 600; color: var(--color-muted); }
.attendance-choice .btn { min-width: 2.6rem; font-weight: 600; }
.attendance-row[data-status="absent"] { background: rgba(220, 53, 69, .08) !important; }
.attendance-row[data-status="late"] { background: rgba(255, 193, 7, .06) !important; }
.attendance-row[data-status="leave"] { background: rgba(13, 202, 240, .06) !important; }
/* The remark box only appears for non-present students, or when it already has text. */
.attendance-row[data-status="present"] .attendance-remark:placeholder-shown { display: none; }
.attendance-savebar {
    position: sticky; bottom: 0; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: .75rem;
    padding: .9rem 1rem; margin: 0 -1rem; background: rgba(11, 18, 32, .92); backdrop-filter: blur(8px);
    border-top: 1px solid var(--color-border);
}
@media (min-width: 768px) { .attendance-savebar { margin: 0; border: 1px solid var(--color-border); border-radius: var(--radius); } }
.register-table th, .register-table td { padding: .35rem .3rem !important; font-size: .82rem; }
.register-off { background: rgba(255, 255, 255, .04); }
.att-calendar { display: grid; grid-template-columns: repeat(7, 1fr); gap: .35rem; max-width: 460px; }
.att-calendar-head { text-align: center; font-size: .75rem; color: var(--color-muted); }
.att-day {
    aspect-ratio: 1; display: grid; place-items: center; border-radius: 10px; font-size: .85rem;
    background: var(--color-surface-2); border: 1px solid var(--color-border);
}
.att-present, .att-late { background: rgba(25, 135, 84, .25); border-color: rgba(25, 135, 84, .5); }
.att-absent { background: rgba(220, 53, 69, .3); border-color: rgba(220, 53, 69, .6); }
.att-leave { background: rgba(13, 202, 240, .2); border-color: rgba(13, 202, 240, .5); }
.att-off { opacity: .5; }

@media print {
    .app-sidebar, .app-topbar, .academic-nav, form.card, footer { display: none !important; }
    body, .card { background: #fff !important; color: #000 !important; }
    .register-table, .register-table * { color: #000 !important; }
}

/* ---------- Students & academic ---------- */
.academic-nav .nav-link { color: var(--color-muted); border-radius: 10px; }
.academic-nav .nav-link:hover { color: #fff; }
.academic-nav .nav-link.active { background: var(--color-primary-soft); color: #fff; }

.student-thumb {
    width: 40px; height: 40px; border-radius: 10px; object-fit: cover; display: inline-grid; place-items: center;
}
.student-thumb-empty { background: var(--color-primary-soft); color: #A9C6FF; font-weight: 600; }
.student-photo { width: 120px; height: 140px; border-radius: var(--radius); object-fit: cover; border: 1px solid var(--color-border); }
.student-photo-empty {
    width: 120px; height: 140px; border-radius: var(--radius); display: grid; place-items: center; margin: 0 auto;
    background: var(--color-surface-2); border: 1px dashed var(--color-border); color: var(--color-muted); font-size: 3rem;
}

/* ---------- Guest pages ---------- */
.guest-body {
    min-height: 100vh;
    background:
        radial-gradient(600px 400px at 15% 10%, rgba(47, 107, 216, .35), transparent 60%),
        radial-gradient(500px 380px at 90% 90%, rgba(212, 166, 70, .22), transparent 60%),
        var(--color-bg);
}
.guest-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem 1rem; }
.guest-card {
    width: 100%; max-width: 430px; border-radius: 20px;
    background: rgba(17, 26, 44, .9); border: 1px solid var(--color-border);
    box-shadow: 0 30px 80px rgba(0, 0, 0, .45);
}
.guest-locale { position: absolute; top: 1rem; right: 1rem; }
.school-hero-logo { width: 84px; height: 84px; border-radius: 20px; object-fit: cover; background: #fff; }

/* ---------- Fees ---------- */
.fee-chart { display: flex; align-items: flex-end; gap: .75rem; height: 210px; padding-top: 1.4rem; }
.fee-chart-col { flex: 1; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: .35rem; min-width: 0; }
.fee-chart-bar {
    width: 100%; max-width: 56px; border-radius: 10px 10px 4px 4px;
    background: linear-gradient(180deg, #5B8DEF, var(--color-primary)); box-shadow: 0 6px 20px rgba(47, 107, 216, .35);
    transition: height .6s cubic-bezier(.2, .8, .2, 1);
}
.fee-chart-col:last-child .fee-chart-bar { background: linear-gradient(180deg, #E6C277, var(--color-secondary)); box-shadow: 0 6px 20px rgba(212, 166, 70, .35); }
.fee-chart-value { font-size: .72rem; color: var(--color-muted); white-space: nowrap; }
.fee-chart-label { font-size: .8rem; color: var(--color-muted); }
.fee-structure .input-group-text { background: var(--color-surface-2); border-color: var(--color-border); color: var(--color-muted); }
.receipt-row {
    display: flex; align-items: center; gap: .85rem; padding: .65rem .8rem; margin-bottom: .5rem;
    border: 1px solid var(--color-border); border-radius: 12px; color: var(--color-text); text-decoration: none;
    transition: border-color .15s, background .15s;
}
.receipt-row:hover { border-color: var(--color-primary); background: var(--color-surface-2); color: #fff; }
.receipt-row-icon { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: var(--color-secondary-soft); color: var(--color-secondary); font-size: 1.1rem; }

/* ---------- Exams & results ---------- */
.marks-table input.form-control { max-width: 92px; text-align: center; }
.marks-table tr.is-absent input[type=number] { opacity: .35; pointer-events: none; }
.marks-total { min-width: 64px; font-weight: 600; }
.tabulation th, .tabulation td { padding: .45rem .5rem !important; font-size: .84rem; white-space: nowrap; }
.tabulation .sticky-col { position: sticky; left: 0; background: var(--color-surface); z-index: 1; }
.tabulation .fail { color: #FF8A8A; font-weight: 600; }
.grade-pill { display: inline-block; min-width: 34px; padding: .1rem .45rem; border-radius: 999px; font-weight: 600; font-size: .8rem; text-align: center; background: var(--color-primary-soft); color: #BCD3FF; }
.grade-pill.g-F { background: rgba(220, 53, 69, .18); color: #FF8A8A; }
.grade-pill.g-Ap { background: rgba(25, 135, 84, .22); color: #6EE7A8; }
.exam-card { transition: border-color .15s, transform .15s; }
.exam-card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.part-input { width: 76px; }

/* ---------- Teachers & staff ---------- */
.employee-card { transition: border-color .15s, transform .15s; }
.employee-card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.employee-photo { width: 64px; height: 64px; border-radius: 18px; object-fit: cover; flex-shrink: 0; }
.employee-photo-empty { display: grid; place-items: center; background: var(--color-primary-soft); color: #BCD3FF; font-size: 1.5rem; font-weight: 600; }
.employee-photo-lg { width: 128px; height: 128px; border-radius: 32px; object-fit: cover; display: inline-grid; place-items: center; font-size: 3rem; box-shadow: 0 0 0 4px var(--color-surface), 0 0 0 6px var(--color-primary); }

/* ---------- Routine ---------- */
.routine-table { width: 100%; border-collapse: separate; border-spacing: 4px; min-width: 640px; }
.routine-table th, .routine-table td { text-align: center; vertical-align: middle; padding: .5rem .4rem; border-radius: 10px; font-size: .84rem; }
.routine-table thead th { background: var(--color-surface-2); color: var(--color-muted); font-weight: 600; }
.routine-table thead th small { display: block; font-weight: 400; font-size: .74rem; }
.routine-table .routine-day { text-align: left; white-space: nowrap; background: var(--color-surface-2); color: var(--color-text); font-weight: 600; }
.routine-table td { background: var(--color-primary-soft); color: #fff; min-width: 96px; }
.routine-table td b { display: block; font-weight: 600; }
.routine-table td small { display: block; color: var(--color-muted); font-size: .74rem; }
.routine-table td.is-empty { background: transparent; border: 1px dashed var(--color-border); }
.routine-table tr.is-today .routine-day { background: var(--color-secondary); color: #1A1405; }
.routine-table td.is-now { outline: 2px solid var(--color-secondary); }
.routine-table .routine-break, .routine-editor-break { background: var(--color-secondary-soft); color: var(--color-secondary); min-width: 36px; width: 36px; }
.routine-table .routine-break span, .routine-editor-break span { writing-mode: vertical-rl; font-weight: 600; letter-spacing: .1em; }
.routine-table .routine-break-head { width: 36px; }
.routine-editor th { white-space: nowrap; font-size: .8rem; }
.routine-editor td { min-width: 150px; vertical-align: top; transition: background .15s; }
.routine-editor td.is-filled { background: var(--color-primary-soft); }
.routine-editor .routine-editor-break { min-width: 36px; text-align: center; vertical-align: middle; }

.today-time { min-width: 110px; font-size: .85rem; color: var(--color-muted); font-variant-numeric: tabular-nums; }
.today-now { background: var(--color-secondary-soft) !important; }


/* ---------- Sales demo ---------- */
.demo-strip {
    display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; padding: .5rem 1rem; font-size: .85rem;
    background: linear-gradient(90deg, rgba(212, 166, 70, .18), rgba(47, 107, 216, .12)); border-bottom: 1px solid var(--color-border); color: #F3DFA8;
}
.demo-logins { border-top: 1px dashed var(--color-border); padding-top: 1rem; }
.demo-login-btn { font-size: .88rem; padding: .55rem .5rem; }
.demo-login-btn i { color: #D4A646; }
.demo-locked { background: rgba(212, 166, 70, .08) !important; border-color: rgba(212, 166, 70, .45) !important; padding-right: 2.6rem; cursor: not-allowed; }
.demo-lock { position: absolute; right: .95rem; top: 50%; transform: translateY(-50%); color: #D4A646; }
.demo-hint a { color: #E6C277; font-weight: 600; text-decoration: none; }