/* ===========================================================
   MODERN THEME LAYER
   Loaded after app.css on purpose: app.css stays the structural/layout
   source of truth, and this file only re-skins it (color, depth, motion).
   It works through Bootstrap 5 RTL's CSS variables, so every page picks the
   theme up without changing its markup.
   =========================================================== */

:root {
    /* Brand ramp */
    --lms-primary: #4f46e5;
    --lms-primary-600: #4338ca;
    --lms-primary-300: #818cf8;
    --lms-accent: #06b6d4;
    --lms-accent-2: #a855f7;
    --lms-success: #10b981;
    --lms-warning: #f59e0b;
    --lms-danger: #ef4444;

    /* Surfaces */
    --lms-bg: #f4f6fb;
    --lms-surface: #ffffff;
    --lms-surface-2: #f8fafc;
    --lms-border: rgba(15, 23, 42, 0.08);
    --lms-text: #0f172a;
    --lms-muted: #64748b;

    /* Depth */
    --lms-shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .04);
    --lms-shadow: 0 4px 16px -4px rgba(15, 23, 42, .10), 0 2px 6px -2px rgba(15, 23, 42, .06);
    --lms-shadow-lg: 0 24px 48px -16px rgba(15, 23, 42, .22), 0 8px 20px -8px rgba(15, 23, 42, .12);
    --lms-glow: 0 10px 30px -10px rgba(79, 70, 229, .55);

    --lms-radius: 1rem;
    --lms-radius-sm: .65rem;
    --lms-ease: cubic-bezier(.22, 1, .36, 1);

    /* Hand-off to Bootstrap */
    --bs-primary: #4f46e5;
    --bs-primary-rgb: 79, 70, 229;
    --bs-link-color: #4f46e5;
    --bs-link-hover-color: #4338ca;
    --bs-body-color: var(--lms-text);
    --bs-border-color: var(--lms-border);
    --bs-border-radius: .65rem;
    --bs-border-radius-sm: .5rem;
    --bs-border-radius-lg: 1rem;
}

html, body {
    color: var(--lms-text);
    background: var(--lms-bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* Ambient aurora behind the whole app: depth for every page with no per-page
   markup. Fixed and non-interactive, so it never affects layout or clicks. */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(52rem 32rem at 88% -12%, rgba(79, 70, 229, .16), transparent 60%),
        radial-gradient(40rem 28rem at 4% 8%, rgba(6, 182, 212, .13), transparent 62%),
        radial-gradient(46rem 34rem at 60% 108%, rgba(168, 85, 247, .10), transparent 60%);
}

.lms-shell, .login-page {
    position: relative;
    z-index: 1;
}

/* ---- Typography ---- */

h1, .h1 {
    font-size: clamp(1.45rem, 1.1rem + 1.1vw, 1.9rem);
    font-weight: 800;
    letter-spacing: -.01em;
}

h2, .h2, h3, h4, h5, h6 {
    font-weight: 700;
}

.lms-content > h1:first-child {
    margin-bottom: .35rem;
    background: linear-gradient(120deg, var(--lms-text) 20%, var(--lms-primary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.text-muted {
    color: var(--lms-muted) !important;
}

/* ---- App shell ---- */

.lms-sidebar {
    width: 17rem;
    padding: 1.1rem .9rem;
    color: #e2e8f0;
    background:
        radial-gradient(28rem 20rem at 120% 0%, rgba(129, 140, 248, .22), transparent 70%),
        linear-gradient(180deg, #171b2e 0%, #12162a 55%, #0e1122 100%);
    border-inline-end: 1px solid rgba(148, 163, 184, .12);
    box-shadow: 0 0 48px rgba(2, 6, 23, .28);
    transition: inset-inline-start .35s var(--lms-ease);
    scrollbar-width: thin;
    scrollbar-color: rgba(148, 163, 184, .35) transparent;
}

.lms-sidebar-backdrop {
    background: rgba(9, 12, 24, .55);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    animation: lms-fade .25s var(--lms-ease);
}

.lms-brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -.01em;
    color: #fff;
    padding: .35rem .5rem 1rem;
    margin-bottom: .75rem;
    border-bottom: 1px solid rgba(148, 163, 184, .14);
}

.lms-brand-mark {
    width: 2.2rem;
    height: 2.2rem;
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    border-radius: .7rem;
    background: linear-gradient(135deg, var(--lms-primary-300), var(--lms-accent));
    box-shadow: var(--lms-glow);
}

.lms-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.lms-brand-sub {
    font-size: .68rem;
    font-weight: 500;
    letter-spacing: .04em;
    color: #94a3b8;
}

.lms-nav ul {
    gap: .15rem;
}

.lms-nav a {
    position: relative;
    gap: .7rem;
    padding: .62rem .8rem;
    border-radius: .7rem;
    color: #b6c0d4;
    font-size: .93rem;
    font-weight: 500;
    transition: color .2s var(--lms-ease), background-color .2s var(--lms-ease), transform .2s var(--lms-ease);
}

.lms-nav a i {
    font-size: 1.05rem;
    opacity: .85;
    transition: transform .25s var(--lms-ease), opacity .2s var(--lms-ease);
}

.lms-nav a:hover {
    background: rgba(148, 163, 184, .12);
    color: #fff;
    transform: translateX(-2px);
}

[dir="ltr"] .lms-nav a:hover {
    transform: translateX(2px);
}

.lms-nav a:hover i {
    opacity: 1;
    transform: scale(1.08);
}

.lms-nav a.active {
    color: #fff;
    background: linear-gradient(90deg, rgba(79, 70, 229, .95), rgba(99, 102, 241, .5));
    box-shadow: 0 8px 20px -10px rgba(79, 70, 229, .9);
}

.lms-nav a.active i {
    opacity: 1;
}

/* Active marker sits on the inline-start edge so it flips correctly under RTL. */
.lms-nav a.active::before {
    content: "";
    position: absolute;
    inset-inline-start: -.9rem;
    top: 50%;
    transform: translateY(-50%);
    width: .22rem;
    height: 1.4rem;
    border-radius: 0 .3rem .3rem 0;
    background: linear-gradient(180deg, var(--lms-accent), var(--lms-primary-300));
}

/* ---- Top bar ---- */

.lms-topbar {
    padding: .7rem 1.25rem;
    gap: .75rem;
    background: rgba(255, 255, 255, .72);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--lms-border);
    box-shadow: 0 1px 24px -12px rgba(15, 23, 42, .35);
}

.lms-topbar-user {
    font-weight: 600;
    font-size: .92rem;
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    padding: .28rem .85rem .28rem .28rem;
    border-radius: 999px;
    background: var(--lms-surface-2);
    border: 1px solid var(--lms-border);
}

.lms-topbar-user::before {
    content: "";
    width: 1.75rem;
    height: 1.75rem;
    flex: 0 0 auto;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--lms-primary), var(--lms-accent));
    box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .6);
}

.lms-sidebar-toggle {
    border-radius: .7rem;
    color: var(--lms-text);
    transition: background-color .2s var(--lms-ease), transform .2s var(--lms-ease);
}

.lms-sidebar-toggle:hover {
    background: var(--lms-surface-2);
    transform: scale(1.05);
}

.lms-logout-button {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .38rem .85rem;
    border-radius: 999px;
    font-size: .85rem;
    font-weight: 600;
    color: #b91c1c;
    background: rgba(239, 68, 68, .08);
    border: 1px solid rgba(239, 68, 68, .18);
    transition: background-color .2s var(--lms-ease), color .2s var(--lms-ease), transform .2s var(--lms-ease);
}

.lms-logout-button:hover {
    background: var(--lms-danger);
    color: #fff;
    transform: translateY(-1px);
}

/* ---- Content entrance ---- */

.lms-content {
    padding: 1.75rem;
}

/* The entrance animation is deliberately NOT on .lms-content itself.
   An element with a filled animation on transform/opacity becomes both a stacking context
   and a containing block for its position:fixed descendants -- and the page-level modals
   (EntityFormDialog) render inside .lms-content. That made them clip against its overflow
   and paint *under* the sticky topbar. Animating the content's own children keeps the
   "page comes alive" feel while leaving the modals anchored to the viewport. */
.lms-content > h1,
.lms-content > .row,
.lms-content > .card,
.lms-content > .alert,
.lms-content > .lms-datagrid,
.lms-content > .table-responsive-wrap {
    animation: lms-rise .45s var(--lms-ease) both;
}

@keyframes lms-rise {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: none; }
}

@keyframes lms-fade {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes lms-pop {
    from { opacity: 0; transform: translateY(12px) scale(.98); }
    to { opacity: 1; transform: none; }
}

/* ---- Cards ---- */

.card {
    border: 1px solid var(--lms-border);
    border-radius: var(--lms-radius);
    background: var(--lms-surface);
    box-shadow: var(--lms-shadow-sm);
    overflow: hidden;
    transition: transform .3s var(--lms-ease), box-shadow .3s var(--lms-ease), border-color .3s var(--lms-ease);
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--lms-shadow);
    border-color: rgba(79, 70, 229, .28);
}

.card-body {
    padding: 1.15rem 1.25rem;
}

.card-header, .card-footer {
    background: var(--lms-surface-2);
    border-color: var(--lms-border);
}

/* Stat tiles: a thin gradient rail on top reads as "live metric" at a glance. */
.lms-stat.card {
    position: relative;
}

.lms-stat.card::after {
    content: "";
    position: absolute;
    inset-inline: 0;
    top: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--lms-primary), var(--lms-accent));
}

.lms-stat .fs-4, .lms-stat .fs-5 {
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    letter-spacing: -.02em;
}

.lms-stat-icon {
    width: 2.5rem;
    height: 2.5rem;
    flex: 0 0 auto;
    border-radius: .8rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    color: var(--lms-primary);
    background: rgba(79, 70, 229, .10);
    transition: transform .3s var(--lms-ease);
}

.lms-stat:hover .lms-stat-icon {
    transform: translateY(-2px) scale(1.06);
}

.lms-stat-cyan .lms-stat-icon { color: #0891b2; background: rgba(6, 182, 212, .12); }
.lms-stat-cyan.card::after { background: linear-gradient(90deg, var(--lms-accent), #22d3ee); }
.lms-stat-green .lms-stat-icon { color: #047857; background: rgba(16, 185, 129, .12); }
.lms-stat-green.card::after { background: linear-gradient(90deg, var(--lms-success), #34d399); }
.lms-stat-amber .lms-stat-icon { color: #b45309; background: rgba(245, 158, 11, .14); }
.lms-stat-amber.card::after { background: linear-gradient(90deg, var(--lms-warning), #fbbf24); }
.lms-stat-violet .lms-stat-icon { color: #7e22ce; background: rgba(168, 85, 247, .12); }
.lms-stat-violet.card::after { background: linear-gradient(90deg, var(--lms-accent-2), #c084fc); }

/* ---- Buttons ---- */

.btn {
    --bs-btn-border-radius: .7rem;
    font-weight: 600;
    letter-spacing: -.005em;
    position: relative;
    overflow: hidden;
    transition: transform .2s var(--lms-ease), box-shadow .25s var(--lms-ease), background-color .2s var(--lms-ease), color .2s var(--lms-ease);
}

.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(0); }

.btn-primary {
    --bs-btn-bg: var(--lms-primary);
    --bs-btn-border-color: var(--lms-primary);
    --bs-btn-hover-bg: var(--lms-primary-600);
    --bs-btn-hover-border-color: var(--lms-primary-600);
    --bs-btn-active-bg: var(--lms-primary-600);
    background-image: linear-gradient(135deg, var(--lms-primary), #6366f1 55%, var(--lms-accent-2));
    border: none;
    box-shadow: 0 8px 18px -10px rgba(79, 70, 229, .95);
}

.btn-primary:hover:not(:disabled) { box-shadow: var(--lms-glow); }

/* Light sweep across filled buttons on hover: the "premium" cue, cheap to render. */
.btn-primary::after, .btn-success::after, .btn-danger::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, .35) 50%, transparent 70%);
    transform: translateX(-130%);
    transition: transform .7s var(--lms-ease);
    pointer-events: none;
}

.btn-primary:hover::after, .btn-success:hover::after, .btn-danger:hover::after {
    transform: translateX(130%);
}

.btn-outline-primary {
    --bs-btn-color: var(--lms-primary);
    --bs-btn-border-color: rgba(79, 70, 229, .45);
    --bs-btn-hover-bg: var(--lms-primary);
    --bs-btn-hover-border-color: var(--lms-primary);
}

.btn-outline-secondary {
    --bs-btn-color: #475569;
    --bs-btn-border-color: var(--lms-border);
    --bs-btn-hover-bg: #f1f5f9;
    --bs-btn-hover-color: var(--lms-text);
    --bs-btn-hover-border-color: rgba(15, 23, 42, .18);
}

.btn:disabled, .btn.disabled {
    opacity: .55;
    box-shadow: none;
}

/* ---- Forms ---- */

.form-control, .form-select {
    border-radius: .7rem;
    border-color: var(--lms-border);
    background-color: var(--lms-surface);
    padding: .55rem .8rem;
    transition: border-color .2s var(--lms-ease), box-shadow .2s var(--lms-ease), background-color .2s var(--lms-ease);
}

.form-control:focus, .form-select:focus {
    border-color: var(--lms-primary-300);
    box-shadow: 0 0 0 .22rem rgba(79, 70, 229, .16);
}

.form-control::placeholder {
    color: #94a3b8;
}

.form-label {
    font-weight: 600;
    font-size: .88rem;
    color: #334155;
}

.form-check-input:checked {
    background-color: var(--lms-primary);
    border-color: var(--lms-primary);
}

.form-check-input:focus {
    box-shadow: 0 0 0 .22rem rgba(79, 70, 229, .16);
}

/* Keyboard users get a visible, on-brand ring everywhere. */
:focus-visible {
    outline: 2px solid var(--lms-primary-300);
    outline-offset: 2px;
}

/* ---- Tables ---- */

.table {
    --bs-table-bg: transparent;
    --bs-table-striped-bg: rgba(148, 163, 184, .06);
    --bs-table-hover-bg: rgba(79, 70, 229, .06);
    border-color: var(--lms-border);
    margin-bottom: 0;
}

.table > thead th {
    background: var(--lms-surface-2);
    color: #475569;
    font-size: .8rem;
    font-weight: 700;
    border-bottom: 1px solid var(--lms-border);
    padding: .75rem .85rem;
    position: sticky;
    top: 0;
    z-index: 1;
}

.table > tbody td {
    padding: .7rem .85rem;
    vertical-align: middle;
    border-color: var(--lms-border);
}

.table > tbody > tr {
    transition: background-color .18s var(--lms-ease);
}

.table > tbody > tr:hover > * {
    background-color: var(--bs-table-hover-bg);
}

.table-responsive-wrap {
    background: var(--lms-surface);
    border: 1px solid var(--lms-border);
    border-radius: var(--lms-radius);
    box-shadow: var(--lms-shadow-sm);
    overflow: auto;
}

.table-responsive-wrap::-webkit-scrollbar {
    height: .5rem;
    width: .5rem;
}

.table-responsive-wrap::-webkit-scrollbar-thumb {
    background: rgba(100, 116, 139, .35);
    border-radius: 999px;
}

/* ---- Data grid ---- */

.lms-datagrid-toolbar input[type="search"] {
    max-width: 24rem;
    padding-inline-start: 2.35rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2394a3b8'%3E%3Cpath d='M11.74 10.34h-.79l-.28-.27a6.47 6.47 0 1 0-.7.7l.27.28v.79L15 16.5 16.5 15l-4.76-4.66zm-5.24 0a4.5 4.5 0 1 1 0-9 4.5 4.5 0 0 1 0 9z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-size: 1rem;
    background-position: right .85rem center;
}

[dir="ltr"] .lms-datagrid-toolbar input[type="search"] {
    background-position: left .85rem center;
}

/* Loading / empty placeholder rows: centered, muted, never mistaken for data. */
.lms-grid-state {
    text-align: center;
    padding: 2.5rem 1rem !important;
    color: var(--lms-muted);
    font-size: .92rem;
}

.lms-grid-state i {
    display: block;
    font-size: 1.9rem;
    margin-bottom: .4rem;
    opacity: .45;
}

.lms-grid-state .spinner-border {
    margin-inline-end: .5rem;
}

.lms-datagrid-pager {
    justify-content: flex-end;
    font-size: .88rem;
    color: var(--lms-muted);
}

/* ---- Badges, alerts, modals ---- */

.badge {
    border-radius: 999px;
    font-weight: 600;
    padding: .35em .7em;
    letter-spacing: -.005em;
}

.alert {
    border: 1px solid var(--lms-border);
    border-radius: var(--lms-radius-sm);
    box-shadow: var(--lms-shadow-sm);
    animation: lms-rise .3s var(--lms-ease) both;
}

.alert-success { background: rgba(16, 185, 129, .10); color: #065f46; border-color: rgba(16, 185, 129, .25); }
.alert-warning { background: rgba(245, 158, 11, .12); color: #92400e; border-color: rgba(245, 158, 11, .28); }
.alert-danger { background: rgba(239, 68, 68, .10); color: #991b1b; border-color: rgba(239, 68, 68, .25); }
.alert-info { background: rgba(6, 182, 212, .10); color: #155e75; border-color: rgba(6, 182, 212, .25); }

/* These dialogs are rendered by Blazor (no Bootstrap JS), so .modal never gets the .show
   class that normally turns scrolling on -- set it here or a form taller than the viewport
   has no way to reach its own save button. */
.modal.d-block {
    overflow-y: auto;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.modal-dialog {
    margin: 1.75rem auto;
}

.modal-header {
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, rgba(79, 70, 229, .07), rgba(6, 182, 212, .07));
}

.modal-title {
    font-weight: 700;
}

.modal-body {
    padding: 1.25rem;
}

.modal-footer {
    padding: .85rem 1.25rem;
    background: var(--lms-surface-2);
}

.modal-content {
    border: 1px solid var(--lms-border);
    border-radius: var(--lms-radius);
    box-shadow: var(--lms-shadow-lg);
    animation: lms-pop .28s var(--lms-ease) both;
}

.modal-header, .modal-footer {
    border-color: var(--lms-border);
}

.modal-backdrop.show {
    opacity: .55;
}

/* ---- Calendar ---- */

.lms-calendar {
    gap: .4rem;
}

.lms-calendar-head {
    background: linear-gradient(135deg, rgba(79, 70, 229, .10), rgba(6, 182, 212, .10));
    color: #3730a3;
    border-radius: .6rem;
    padding: .5rem .2rem;
}

.lms-calendar-cell {
    border-radius: .75rem;
    border-color: var(--lms-border);
    box-shadow: var(--lms-shadow-sm);
    transition: transform .2s var(--lms-ease), box-shadow .2s var(--lms-ease), border-color .2s var(--lms-ease);
}

.lms-calendar-cell:hover {
    transform: translateY(-2px);
    box-shadow: var(--lms-shadow);
    border-color: rgba(79, 70, 229, .3);
}

.lms-calendar-empty {
    background: rgba(248, 250, 252, .6);
    box-shadow: none;
}

.lms-calendar-today {
    border-color: transparent;
    box-shadow: 0 0 0 2px var(--lms-primary), var(--lms-shadow);
    background: linear-gradient(180deg, rgba(79, 70, 229, .06), var(--lms-surface) 55%);
}

.lms-calendar-event {
    background: rgba(79, 70, 229, .08);
    border-radius: .4rem;
    padding: .12rem .3rem;
}

/* ---- Login ---- */

.login-page {
    background:
        radial-gradient(38rem 28rem at 78% 12%, rgba(99, 102, 241, .35), transparent 62%),
        radial-gradient(34rem 26rem at 16% 84%, rgba(6, 182, 212, .30), transparent 60%),
        linear-gradient(140deg, #0b1020 0%, #141a33 48%, #0d1226 100%);
    overflow: hidden;
}

/* Slow drifting sheen: motion that signals "alive" without pulling focus. */
.login-page::after {
    content: "";
    position: absolute;
    inset: -30%;
    background: conic-gradient(from 0deg, transparent 0deg, rgba(129, 140, 248, .14) 90deg, transparent 180deg, rgba(34, 211, 238, .12) 270deg, transparent 360deg);
    animation: lms-spin 28s linear infinite;
    pointer-events: none;
}

@keyframes lms-spin {
    to { transform: rotate(1turn); }
}

.login-card {
    position: relative;
    z-index: 1;
    max-width: 24rem;
    gap: 1rem;
    padding: 2.25rem 2rem;
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, .96);
    border: 1px solid rgba(255, 255, 255, .6);
    box-shadow: 0 32px 64px -24px rgba(2, 6, 23, .7);
    animation: lms-pop .5s var(--lms-ease) both;
}

.login-card h1 {
    margin: 0;
    font-size: 1.25rem;
    text-align: center;
}

.login-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .6rem;
}

.login-brand-mark {
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    background: linear-gradient(135deg, var(--lms-primary), var(--lms-accent-2) 60%, var(--lms-accent));
    box-shadow: var(--lms-glow);
}

.login-subtitle {
    margin: 0;
    text-align: center;
    font-size: .85rem;
    color: var(--lms-muted);
}

.login-card label {
    gap: .35rem;
    font-weight: 600;
    color: #334155;
}

.login-card input, .login-card select {
    padding: .62rem .8rem;
    border: 1px solid var(--lms-border);
    border-radius: .7rem;
    background: var(--lms-surface-2);
    font-weight: 500;
    transition: border-color .2s var(--lms-ease), box-shadow .2s var(--lms-ease), background-color .2s var(--lms-ease);
}

.login-card input:focus, .login-card select:focus {
    outline: none;
    background: #fff;
    border-color: var(--lms-primary-300);
    box-shadow: 0 0 0 .22rem rgba(79, 70, 229, .16);
}

.login-card button {
    margin-top: .5rem;
    padding: .7rem;
    border-radius: .75rem;
    font-weight: 700;
    background-image: linear-gradient(135deg, var(--lms-primary), #6366f1 55%, var(--lms-accent-2));
    box-shadow: 0 12px 26px -12px rgba(79, 70, 229, .95);
    transition: transform .2s var(--lms-ease), box-shadow .25s var(--lms-ease);
}

.login-card button:hover {
    transform: translateY(-1px);
    box-shadow: var(--lms-glow);
}

.login-card button:active {
    transform: translateY(0);
}

.login-error {
    background: rgba(239, 68, 68, .10);
    border: 1px solid rgba(239, 68, 68, .25);
    color: #991b1b;
    border-radius: .7rem;
    animation: lms-shake .4s var(--lms-ease) both;
}

@keyframes lms-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

/* ---- Meeting room: keeps its dark theme, gains depth ---- */

.meeting-header, .meeting-toolbar, .meeting-side-panel {
    background: rgba(27, 32, 41, .92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.lk-tile {
    border-radius: .85rem;
    box-shadow: 0 12px 28px -14px rgba(0, 0, 0, .9);
    transition: transform .3s var(--lms-ease), box-shadow .3s var(--lms-ease);
}

.lk-tile:hover {
    transform: translateY(-2px);
}

.lk-tile.speaking {
    outline-color: var(--lms-success);
    box-shadow: 0 0 26px -4px rgba(16, 185, 129, .55);
}

.meeting-status-dot.on {
    animation: lms-pulse 2s ease-in-out infinite;
}

@keyframes lms-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(46, 189, 89, .6); }
    70% { box-shadow: 0 0 0 .45rem rgba(46, 189, 89, 0); }
}

.btn-round {
    box-shadow: 0 8px 18px -10px rgba(0, 0, 0, .8);
}

/* ---- Blazor error toast ---- */

#blazor-error-ui {
    background: #1e2530 !important;
    color: #f8fafc;
    border-top: 2px solid var(--lms-danger);
}

#blazor-error-ui a {
    color: var(--lms-primary-300);
}

/* ---- Motion opt-out: honour the OS setting, keep every state readable ---- */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
        scroll-behavior: auto !important;
    }

    .btn:hover:not(:disabled), .card:hover, .lk-tile:hover, .lms-calendar-cell:hover, .lms-nav a:hover {
        transform: none;
    }
}