/* ============================================================
   TeacherPro — Liquid Glass Design System
   Aesthetic: frosted glass, aurora background, deep-navy base
   Type: Manrope (loaded via Google Fonts in base.html)
   ============================================================ */

/* ---------- Reset ---------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---------- Tokens ---------- */
:root {
    /* Foundation — deep sky-blue base */
    --bg-0: oklch(13% 0.05 248);
    --bg-1: oklch(17% 0.06 250);
    --bg-2: oklch(21% 0.065 252);

    /* Glass — blue-tinted so panels read as "sky" not "gray" */
    --glass-bg: rgba(70, 145, 255, 0.07);
    --glass-bg-strong: rgba(70, 145, 255, 0.12);
    --glass-bg-hover: rgba(90, 165, 255, 0.16);
    --glass-border: rgba(100, 180, 255, 0.18);
    --glass-border-strong: rgba(130, 205, 255, 0.30);
    --glass-highlight: rgba(255, 255, 255, 0.35);
    --glass-inner: inset 0 1px 0 0 rgba(255, 255, 255, 0.18),
                   inset 0 -1px 0 0 rgba(100, 160, 255, 0.06);

    /* Text — warm blue-tinted so no pure cold gray */
    --text: oklch(97% 0.008 230);
    --text-muted: oklch(72% 0.07 228);
    --text-dim: oklch(57% 0.06 228);
    --text-faint: oklch(44% 0.05 228);

    /* Accents — sky blue primary */
    --c-cyan: oklch(74% 0.17 212);
    --c-violet: oklch(70% 0.18 275);
    --c-teal: oklch(73% 0.15 185);
    --c-rose: oklch(72% 0.16 20);
    --c-amber: oklch(82% 0.15 80);
    --c-lime: oklch(82% 0.17 140);

    /* Semantic */
    --ok: oklch(78% 0.16 155);
    --warn: oklch(82% 0.15 75);
    --err: oklch(70% 0.20 22);
    --info: var(--c-cyan);

    /* Radii */
    --r-xs: 8px;
    --r-sm: 12px;
    --r-md: 16px;
    --r-lg: 22px;
    --r-xl: 28px;
    --r-pill: 999px;

    /* Shadows */
    --sh-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --sh-md: 0 10px 30px rgba(0, 0, 0, 0.35);
    --sh-lg: 0 25px 60px rgba(0, 0, 0, 0.45);
    --sh-glow-cyan: 0 8px 32px rgba(100, 200, 255, 0.25);
    --sh-glow-violet: 0 8px 32px rgba(180, 120, 255, 0.25);

    /* Motion */
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Spacing */
    --pad: 1rem;
}

/* ---------- Body + aurora background ---------- */
body {
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
    line-height: 1.55;
    color: var(--text);
    background: var(--bg-0);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    letter-spacing: -0.005em;
}

/* Layered aurora blobs — gives the "water" sense */
body::before,
body::after {
    content: "";
    position: fixed;
    inset: -20%;
    z-index: -2;
    pointer-events: none;
    filter: blur(100px) saturate(1.2);
}

body::before {
    background:
        radial-gradient(40% 35% at 18% 22%, oklch(62% 0.22 225 / 0.55), transparent 70%),
        radial-gradient(35% 30% at 85% 12%, oklch(68% 0.22 205 / 0.50), transparent 70%),
        radial-gradient(45% 40% at 75% 85%, oklch(60% 0.20 245 / 0.42), transparent 70%),
        radial-gradient(35% 35% at 10% 82%, oklch(65% 0.18 215 / 0.38), transparent 70%);
    animation: drift-a 28s ease-in-out infinite alternate;
}

body::after {
    background:
        radial-gradient(30% 25% at 55% 45%, oklch(68% 0.22 230 / 0.35), transparent 70%),
        radial-gradient(25% 25% at 30% 60%, oklch(64% 0.20 242 / 0.28), transparent 70%);
    animation: drift-b 34s ease-in-out infinite alternate;
}

@keyframes drift-a {
    0%   { transform: translate3d(0, 0, 0) scale(1); }
    50%  { transform: translate3d(3%, -2%, 0) scale(1.06); }
    100% { transform: translate3d(-2%, 3%, 0) scale(1.03); }
}

@keyframes drift-b {
    0%   { transform: translate3d(0, 0, 0) scale(1); }
    50%  { transform: translate3d(-4%, 3%, 0) scale(1.08); }
    100% { transform: translate3d(2%, -3%, 0) scale(1.04); }
}

/* Subtle grain so blur stays organic (SVG noise inline) */
.bg-grain {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.5;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.09 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5 {
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: var(--text);
}

h1 { font-size: clamp(1.75rem, 2.6vw, 2.3rem); font-weight: 800; }
h2 { font-size: clamp(1.35rem, 2vw, 1.75rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }

p { color: var(--text-muted); }
strong { color: var(--text); font-weight: 600; }
a { color: var(--c-cyan); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: oklch(85% 0.14 220); }

::selection {
    background: oklch(70% 0.18 260 / 0.35);
    color: var(--text);
}

/* ---------- Glass primitive ---------- */
.glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    box-shadow: var(--sh-md), var(--glass-inner);
    border-radius: var(--r-lg);
    position: relative;
    overflow: hidden;
}

/* Liquid refraction top highlight */
.glass::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(
        145deg,
        rgba(255, 255, 255, 0.35) 0%,
        rgba(255, 255, 255, 0.05) 35%,
        rgba(255, 255, 255, 0) 60%,
        rgba(255, 255, 255, 0.08) 100%);
    -webkit-mask:
        linear-gradient(#000 0 0) content-box,
        linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
    z-index: 1;
}

/* ---------- Navbar ---------- */
.navbar {
    position: sticky;
    top: 14px;
    z-index: 100;
    margin: 14px 20px 0;
    padding: 10px 16px 10px 18px;
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(14, 18, 32, 0.30);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(28px) saturate(180%);
    -webkit-backdrop-filter: blur(28px) saturate(180%);
    border-radius: var(--r-pill);
    box-shadow: var(--sh-md), var(--glass-inner);
}

.navbar::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(145deg,
        rgba(255,255,255,.30), rgba(255,255,255,.04) 40%, rgba(255,255,255,0) 50%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 10px 4px 4px;
    flex-shrink: 0;
    color: inherit;
    text-decoration: none;
}

.nav-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: conic-gradient(from 140deg,
        var(--c-cyan), var(--c-violet), var(--c-teal), var(--c-cyan));
    box-shadow: 0 4px 20px oklch(65% 0.2 260 / 0.5), var(--glass-inner);
    color: #0a0e1c;
    font-size: 0;
    position: relative;
}
.nav-icon::after {
    content: "";
    position: absolute;
    inset: 4px;
    border-radius: 50%;
    background: radial-gradient(120% 80% at 30% 15%, rgba(255,255,255,.8), rgba(255,255,255,.1) 45%, transparent 70%);
    mix-blend-mode: overlay;
}
.nav-icon svg { position: relative; z-index: 1; width: 20px; height: 20px; }

.nav-brand h1 {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 3px;
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--r-pill);
}

.nav-link {
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: var(--r-pill);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: -0.005em;
    white-space: nowrap;
    transition: all .25s var(--ease);
    position: relative;
}

.nav-link:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
    color: var(--text);
    background: var(--glass-bg-strong);
    box-shadow: var(--glass-inner), 0 2px 12px rgba(0,0,0,.3);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}
.nav-dropdown > .nav-link { cursor: pointer; }

.dropdown-arrow {
    font-size: 0.65rem;
    margin-left: 6px;
    opacity: 0.7;
    transition: transform .3s var(--ease);
    display: inline-block;
}
.nav-dropdown:hover .dropdown-arrow,
.nav-dropdown:focus-within .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
    min-width: 220px;
    padding: 6px;
    background: rgba(14, 18, 32, 0.85) !important; /* override inline */
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-radius: var(--r-md);
    box-shadow: var(--sh-lg), var(--glass-inner);
    opacity: 0;
    visibility: hidden;
    transition: all .25s var(--ease);
    z-index: 200;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-link {
    display: block;
    padding: 9px 12px;
    color: var(--text-muted) !important;
    font-size: 0.875rem;
    border-radius: var(--r-xs);
    transition: all .18s var(--ease);
    font-weight: 500;
}
.dropdown-link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text) !important;
}

/* User cluster */
.nav-user {
    display: flex;
    align-items: center;
    gap: 8px;
}

.user-info-compact {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px 4px 4px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-pill);
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-cyan), var(--c-violet));
    display: grid;
    place-items: center;
    font-size: 0.72rem;
    font-weight: 700;
    color: #0a0e1c;
    letter-spacing: 0.02em;
}

.user-name-short {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Language selector */
.language-selector-compact {
    position: relative;
}
.language-current {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    transition: all .2s var(--ease);
}
.language-current:hover { background: var(--glass-bg-hover); }

.language-dropdown-compact {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 130px;
    padding: 4px;
    background: rgba(14, 18, 32, 0.88);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-radius: var(--r-sm);
    box-shadow: var(--sh-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: all .2s var(--ease);
    z-index: 200;
}
.language-selector-compact:hover .language-dropdown-compact,
.language-dropdown-compact.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 10px;
    background: none;
    border: none;
    border-radius: var(--r-xs);
    font: inherit;
    font-size: 0.82rem;
    color: var(--text-muted);
    cursor: pointer;
    text-align: left;
    transition: all .15s var(--ease);
}
.language-option:hover { background: rgba(255,255,255,.07); color: var(--text); }
.language-option.active { color: var(--text); background: rgba(255,255,255,.05); }
.language-option .language-flag { font-size: 0.95rem; }
.language-option .language-name { font-weight: 600; }

/* Logout */
.logout-btn-compact {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    background: oklch(60% 0.18 22 / 0.22);
    border: 1px solid oklch(72% 0.18 22 / 0.35);
    border-radius: 50%;
    color: oklch(85% 0.12 22);
    transition: all .2s var(--ease);
}
.logout-btn-compact:hover {
    background: oklch(62% 0.22 22 / 0.35);
    color: #fff;
    transform: translateY(-1px);
}
.logout-icon { font-size: 0.95rem; }

/* ---------- Container ---------- */
.container {
    max-width: 1280px;
    margin: 28px auto 0;
    padding: 0 24px 60px;
    min-height: calc(100vh - 200px);
    position: relative;
    z-index: 1;
}

/* ---------- Cards ---------- */
.card {
    padding: 28px;
    margin-bottom: 22px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-radius: var(--r-lg);
    box-shadow: var(--sh-md), var(--glass-inner);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(140deg,
        rgba(255,255,255,.22) 0%,
        rgba(255,255,255,.03) 35%,
        rgba(255,255,255,0) 65%,
        rgba(255,255,255,.08) 100%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
    z-index: 1;
}

.card > * { position: relative; z-index: 2; }

.card h2 {
    padding-bottom: 14px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.card h3 {
    margin: 22px 0 14px;
    color: var(--text);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: var(--r-pill);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: -0.005em;
    color: var(--text);
    cursor: pointer;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    backdrop-filter: blur(14px) saturate(160%);
    -webkit-backdrop-filter: blur(14px) saturate(160%);
    text-decoration: none;
    transition: all .22s var(--ease);
    position: relative;
    overflow: hidden;
    min-width: 110px;
    box-shadow: var(--glass-inner);
}

.btn:hover {
    background: var(--glass-bg-hover);
    transform: translateY(-1px);
    border-color: var(--glass-border-strong);
}
.btn:active { transform: translateY(0); }

.btn-sm {
    padding: 7px 14px;
    font-size: 0.82rem;
    min-width: 72px;
}

/* Primary — cyan */
.btn-primary {
    background: linear-gradient(135deg,
        oklch(68% 0.15 220 / 0.55),
        oklch(62% 0.16 240 / 0.45));
    border-color: oklch(75% 0.16 220 / 0.5);
    color: oklch(98% 0.02 220);
    box-shadow: var(--glass-inner), var(--sh-glow-cyan);
}
.btn-primary:hover {
    background: linear-gradient(135deg,
        oklch(72% 0.16 220 / 0.7),
        oklch(66% 0.17 240 / 0.6));
    border-color: oklch(80% 0.14 220 / 0.7);
}

/* Success — teal/lime */
.btn-success {
    background: linear-gradient(135deg,
        oklch(70% 0.18 155 / 0.55),
        oklch(65% 0.17 175 / 0.45));
    border-color: oklch(78% 0.17 160 / 0.5);
    color: oklch(98% 0.02 160);
    box-shadow: var(--glass-inner), 0 8px 28px oklch(70% 0.18 155 / 0.3);
}
.btn-success:hover {
    background: linear-gradient(135deg,
        oklch(74% 0.19 155 / 0.7),
        oklch(68% 0.18 175 / 0.6));
}

/* Danger — rose */
.btn-danger {
    background: linear-gradient(135deg,
        oklch(62% 0.2 25 / 0.55),
        oklch(58% 0.22 10 / 0.45));
    border-color: oklch(70% 0.2 22 / 0.5);
    color: oklch(98% 0.02 22);
    box-shadow: var(--glass-inner), 0 8px 28px oklch(62% 0.2 25 / 0.3);
}
.btn-danger:hover {
    background: linear-gradient(135deg,
        oklch(66% 0.22 25 / 0.7),
        oklch(62% 0.24 10 / 0.6));
}

/* Warning — amber */
.btn-warning {
    background: linear-gradient(135deg,
        oklch(78% 0.17 80 / 0.5),
        oklch(72% 0.18 55 / 0.4));
    border-color: oklch(82% 0.16 75 / 0.5);
    color: oklch(98% 0.02 75);
    box-shadow: var(--glass-inner), 0 8px 28px oklch(78% 0.17 75 / 0.25);
}
.btn-warning:hover {
    background: linear-gradient(135deg,
        oklch(82% 0.18 80 / 0.7),
        oklch(76% 0.19 55 / 0.6));
}

/* Secondary — neutral glass */
.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-muted);
}
.btn-secondary:hover {
    color: var(--text);
    background: var(--glass-bg-hover);
}

/* ---------- Forms ---------- */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.form-group input,
.form-group select,
.form-group textarea,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="tel"],
select,
textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-sm);
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all .2s var(--ease);
    backdrop-filter: blur(8px);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover { background: rgba(255,255,255,.06); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--c-cyan);
    background: rgba(255, 255, 255, 0.07);
    box-shadow: 0 0 0 3px oklch(70% 0.16 220 / 0.18);
}

select option,
.form-group select option {
    background: var(--bg-1);
    color: var(--text);
}

[data-theme="light"] select option {
    background: #ffffff;
    color: #0a0e1c;
}

.form-group textarea { resize: vertical; min-height: 80px; }

.form-group small {
    display: block;
    margin-top: 6px;
    font-size: 0.78rem;
    color: var(--text-dim);
}

input[type="file"] {
    padding: 10px;
    background: rgba(255,255,255,.04);
    border: 1px dashed var(--glass-border-strong);
    border-radius: var(--r-sm);
    color: var(--text-muted);
    cursor: pointer;
}
input[type="file"]::file-selector-button {
    margin-right: 12px;
    padding: 6px 14px;
    border-radius: var(--r-pill);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg-hover);
    color: var(--text);
    font: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
}

/* Checkboxes */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 14px;
    background: rgba(255,255,255,.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-sm);
}

.checkbox-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px 7px 10px;
    background: rgba(255,255,255,.04);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-pill);
    transition: all .18s var(--ease);
    cursor: pointer;
}
.checkbox-item:has(input:checked) {
    background: oklch(70% 0.16 220 / 0.22);
    border-color: oklch(78% 0.14 220 / 0.5);
}
.checkbox-item label {
    margin: 0;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
    text-transform: none;
    letter-spacing: 0;
    cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--c-cyan);
    cursor: pointer;
}

/* ---------- Tables ---------- */
.table-container {
    border: 1px solid var(--glass-border);
    border-radius: var(--r-md);
    background: rgba(0,0,0,0.15);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

table thead {
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid var(--glass-border);
}

table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

table td {
    padding: 14px 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text);
    vertical-align: middle;
}

table tbody tr {
    transition: background .15s var(--ease);
}
table tbody tr:hover {
    background: rgba(255, 255, 255, 0.035);
}

.row-number {
    width: 56px;
    text-align: center;
    color: var(--text-dim);
    font-variant-numeric: tabular-nums;
    font-weight: 600;
}

.action-buttons {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.action-buttons .btn,
.action-buttons form {
    margin: 0;
}

/* ---------- Alerts ---------- */
.alert {
    padding: 14px 18px;
    margin-bottom: 16px;
    border-radius: var(--r-md);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    box-shadow: var(--glass-inner);
}
.alert-success {
    background: oklch(70% 0.18 155 / 0.15);
    border-color: oklch(78% 0.17 160 / 0.4);
    color: oklch(92% 0.12 155);
}
.alert-danger {
    background: oklch(62% 0.2 25 / 0.15);
    border-color: oklch(70% 0.2 22 / 0.4);
    color: oklch(90% 0.14 22);
}
.alert-warning {
    background: oklch(78% 0.17 80 / 0.15);
    border-color: oklch(82% 0.16 75 / 0.4);
    color: oklch(92% 0.13 80);
}
.alert-info {
    background: oklch(68% 0.15 220 / 0.15);
    border-color: oklch(78% 0.14 220 / 0.4);
    color: oklch(92% 0.10 220);
}

/* ---------- Status pills ---------- */
.status-active,
.status-inactive {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px 4px 8px;
    border-radius: var(--r-pill);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}
.status-active::before,
.status-inactive::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
}
.status-active {
    background: oklch(70% 0.18 155 / 0.2);
    color: oklch(88% 0.14 155);
    border: 1px solid oklch(75% 0.16 155 / 0.4);
}
.status-active::before { background: oklch(80% 0.18 155); box-shadow: 0 0 8px oklch(80% 0.18 155); }
.status-inactive {
    background: oklch(62% 0.2 25 / 0.18);
    color: oklch(88% 0.14 25);
    border: 1px solid oklch(70% 0.2 22 / 0.4);
}
.status-inactive::before { background: oklch(72% 0.2 22); }

/* ---------- Stats grid (dashboard) ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    position: relative;
    padding: 22px;
    border-radius: var(--r-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    box-shadow: var(--sh-md), var(--glass-inner);
    display: flex;
    align-items: center;
    gap: 16px;
    overflow: hidden;
    transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.stat-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(140deg, rgba(255,255,255,.22), rgba(255,255,255,.03) 35%, transparent 65%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
    z-index: 1;
}
.stat-card::after {
    content: "";
    position: absolute;
    inset: auto -20% -40% auto;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--stat-glow, var(--c-cyan)), transparent 70%);
    opacity: 0.35;
    filter: blur(30px);
    pointer-events: none;
    z-index: 0;
}
.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sh-lg), var(--glass-inner);
}
.stat-card > * { position: relative; z-index: 2; }

.stat-card:nth-child(1) { --stat-glow: var(--c-cyan); }
.stat-card:nth-child(2) { --stat-glow: var(--c-violet); }
.stat-card:nth-child(3) { --stat-glow: var(--c-teal); }
.stat-card:nth-child(4) { --stat-glow: var(--c-amber); }

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--stat-glow, var(--c-cyan)), transparent);
    border: 1px solid rgba(255,255,255,.15);
    color: var(--text);
    font-size: 1.4rem;
    flex-shrink: 0;
    box-shadow: var(--glass-inner);
}

.stat-content { flex: 1; min-width: 0; }
.stat-content h3 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
    margin: 0 0 2px;
    font-variant-numeric: tabular-nums;
}
.stat-content p {
    margin: 0;
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.stat-trend {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: oklch(70% 0.18 155 / 0.2);
    color: oklch(88% 0.14 155);
    font-size: 0.8rem;
    font-weight: 700;
    border: 1px solid oklch(75% 0.16 155 / 0.3);
}

/* ---------- Actions grid ---------- */
.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px) saturate(160%);
    border-radius: var(--r-md);
    color: var(--text);
    font-weight: 600;
    font-size: 0.92rem;
    text-decoration: none;
    transition: all .22s var(--ease);
    box-shadow: var(--glass-inner);
    position: relative;
    overflow: hidden;
}
.action-btn::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--c-cyan), transparent);
    opacity: 0;
    transition: opacity .25s var(--ease);
    z-index: 0;
}
.action-btn > * { position: relative; z-index: 1; }

.action-btn:hover {
    transform: translateY(-2px);
    border-color: var(--glass-border-strong);
    color: var(--text);
}
.action-btn:hover::after { opacity: 0.15; }

.action-btn.secondary {
    background: rgba(0,0,0,.18);
}
.action-btn.secondary::after {
    background: linear-gradient(135deg, var(--c-violet), transparent);
}

.action-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    background: rgba(255,255,255,.06);
    border: 1px solid var(--glass-border);
    font-size: 1.1rem;
    flex-shrink: 0;
}
.action-text {
    font-weight: 600;
    letter-spacing: -0.005em;
}

/* ---------- Filter / info boxes ---------- */
.filter-box,
.exam-info-box,
.timestamp-info,
.results-summary {
    padding: 16px 18px;
    margin-top: 18px;
    margin-bottom: 18px;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-md);
    backdrop-filter: blur(10px);
}

.exam-info-box {
    border-left: 3px solid var(--c-cyan);
}

.exam-info-box p { margin: 4px 0; color: var(--text); font-size: 0.92rem; }
.exam-info-box p strong { color: var(--text-muted); font-weight: 600; margin-right: 6px; }

.timestamp-item {
    margin-bottom: 4px;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.timestamp-item strong { color: var(--text-dim); font-weight: 600; margin-right: 6px; }

.no-data {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-dim);
    font-style: italic;
}

/* ---------- Download / action cluster ---------- */
.download-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
    justify-content: center;
}
.download-buttons .btn { min-width: 160px; }

/* ---------- Footer ---------- */
.footer {
    margin: 60px 20px 20px;
    padding: 40px 36px 20px;
    background: rgba(14, 18, 32, 0.55);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-radius: var(--r-xl);
    box-shadow: var(--sh-md), var(--glass-inner);
    position: relative;
    overflow: hidden;
}
.footer::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(140deg, rgba(255,255,255,.2), rgba(255,255,255,.03) 35%, transparent 65%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
}
.footer > * { position: relative; z-index: 1; }

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 36px;
    margin-bottom: 28px;
}

.footer-section h3 {
    margin-bottom: 12px;
    font-size: 1.1rem;
    color: var(--text);
}
.footer-section h4 {
    margin-bottom: 12px;
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
}
.footer-section p {
    color: var(--text-dim);
    font-size: 0.9rem;
    line-height: 1.6;
}

.developer-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.developer {
    padding: 12px 14px;
    background: rgba(255,255,255,.04);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-sm);
}
.developer strong {
    display: block;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: var(--text);
}
.developer-contacts {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.contact-item,
.contact-link {
    font-size: 0.82rem;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.contact-link { color: var(--c-cyan); }
.contact-link:hover { color: oklch(85% 0.14 220); }

.footer-links {
    display: flex;
    gap: 8px;
    margin-top: 14px;
    flex-wrap: wrap;
}
.footer-link {
    padding: 7px 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-pill);
    color: var(--text);
    font-size: 0.82rem;
    font-weight: 600;
}
.footer-link:hover {
    background: var(--glass-bg-hover);
    color: var(--text);
}

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-dim);
}

/* ---------- Question fields (create_exam) ---------- */
.question-item {
    padding: 16px;
    margin-bottom: 12px;
    background: rgba(255,255,255,.035);
    border: 1px solid var(--glass-border);
    border-left: 3px solid var(--c-cyan);
    border-radius: var(--r-md);
}
.question-item h4 {
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: var(--text);
}
.question-fields { margin-top: 18px; }

/* ---------- Group filter ---------- */
.group-filter {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--glass-border);
}

/* ---------- Loading spinner ---------- */
.loading {
    display: inline-block;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Hamburger button ---------- */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 36px; height: 36px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-sm);
    cursor: pointer;
    padding: 0;
    margin-left: auto;
    flex-shrink: 0;
}
.hamburger-btn span {
    display: block;
    width: 18px; height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all .25s var(--ease);
}
.hamburger-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger-btn.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .navbar {
        flex-wrap: wrap;
        border-radius: var(--r-lg);
        padding: 10px 14px;
    }
    .nav-links { width: 100%; justify-content: space-between; }
    .nav-menu { flex-wrap: wrap; }
    .user-name-short { display: none; }
    .container { padding: 0 14px 40px; }
    .footer { margin: 40px 10px 10px; padding: 28px 20px 16px; }
}

@media (max-width: 700px) {
    /* Show hamburger, hide desktop nav-menu */
    .hamburger-btn { display: flex; }
    .nav-links { display: none; width: 100%; }
    .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding-top: 8px;
        border-top: 1px solid var(--glass-border);
        margin-top: 8px;
        max-height: 75vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }
    .nav-links.mobile-open .nav-menu {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        width: 90%;
        margin-left: 10px;
        background: none;
        border: none;
        border-radius: 0;
        padding: 0;
        gap: 2px;
    }
    .nav-links.mobile-open .nav-link {
        padding: 7px 11px;
        border-radius: var(--r-sm);
        white-space: normal;
    }
    .nav-links.mobile-open .nav-user {
        width: 100%;
        justify-content: space-between;
        padding-top: 6px;
        border-top: 1px solid var(--glass-border);
        flex-wrap: wrap;
    }
    .nav-links.mobile-open .user-name-short { display: inline; }
    /* Dropdown on mobile: collapsed by default, expands on .mobile-expanded */
    .nav-links.mobile-open .nav-dropdown { position: static; }
    .nav-links.mobile-open .dropdown-menu {
        position: static;
        transform: none;
        opacity: 0;
        visibility: hidden;
        max-height: 0;
        overflow: hidden;
        box-shadow: none;
        background: rgba(0,0,0,.18) !important;
        border-radius: var(--r-sm);
        padding: 0;
        margin-top: 0;
        transition: max-height .28s var(--ease), opacity .2s, padding .2s, margin .2s;
    }
    .nav-links.mobile-open .nav-dropdown.mobile-expanded .dropdown-menu {
        opacity: 1;
        visibility: visible;
        max-height: none;
        overflow: visible;
        padding: 4px;
        margin-top: 2px;
    }
    /* Rotate arrow on expand */
    .nav-links.mobile-open .nav-dropdown .dropdown-arrow { display: inline-block; transition: transform .25s; }
    .nav-links.mobile-open .nav-dropdown.mobile-expanded .dropdown-arrow { transform: rotate(180deg); }

    /* General mobile fixes */
    .card { padding: 16px 14px; border-radius: var(--r-md); }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    table th, table td { padding: 8px 10px; font-size: 0.82rem; }
    .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

@media (max-width: 420px) {
    .stats-grid { grid-template-columns: 1fr; }
    .navbar { margin: 8px 10px 0; padding: 10px 12px; }
}

/* ---------- List / form helpers ---------- */
.list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 14px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--glass-border);
    flex-wrap: wrap;
}
.list-header h2 { padding: 0; margin: 0; border: 0; }

.inline-add-form {
    display: flex;
    gap: 14px;
    align-items: end;
    padding: 16px;
    margin-bottom: 20px;
    background: rgba(255,255,255,.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-md);
    flex-wrap: wrap;
}
.inline-add-form .btn { white-space: nowrap; }

.inline-form {
    padding: 20px;
    margin-bottom: 20px;
    background: rgba(255,255,255,.035);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-md);
}
.inline-form h3 { margin: 0 0 14px; }

.form-card { max-width: 820px; margin-left: auto; margin-right: auto; }

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 26px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
    flex-wrap: wrap;
}

.form-section-title {
    font-size: 0.82rem !important;
    font-weight: 700 !important;
    color: var(--text-muted) !important;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin: 22px 0 10px !important;
    padding-bottom: 6px;
    border-bottom: 1px dashed var(--glass-border);
}

.name-cell { display: flex; align-items: center; gap: 10px; }
.mini-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--c-violet), var(--c-cyan));
    font-size: 0.72rem;
    font-weight: 700;
    color: #0a0e1c;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}

.mono {
    font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.82rem;
    padding: 2px 8px;
    background: rgba(255,255,255,.04);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    color: var(--c-cyan);
}

.count-pill {
    display: inline-grid;
    place-items: center;
    min-width: 30px;
    height: 26px;
    padding: 0 10px;
    background: var(--glass-bg-hover);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-pill);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

.gender-pill {
    display: inline-block;
    padding: 3px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--r-pill);
    border: 1px solid var(--glass-border);
}
.gender-pill.g-m {
    background: oklch(68% 0.15 220 / 0.2);
    color: oklch(88% 0.12 220);
    border-color: oklch(75% 0.14 220 / 0.4);
}
.gender-pill.g-f {
    background: oklch(70% 0.18 320 / 0.2);
    color: oklch(88% 0.12 320);
    border-color: oklch(75% 0.16 320 / 0.4);
}

.check-yes {
    color: oklch(80% 0.18 155);
    font-weight: 700;
    font-size: 1rem;
}

.muted-small {
    font-size: 0.78rem;
    color: var(--text-dim);
}

/* Print-friendly table keeps enter_scores readable */
.score-table {
    overflow-x: auto;
    border-radius: var(--r-md);
    border: 1px solid var(--glass-border);
}
.score-table input[type="number"] {
    width: 70px;
    padding: 6px 8px;
    text-align: center;
    font-weight: 600;
}

/* ============================================================
   Light / Day theme  —  white glass panels, sky-blue accents
   ============================================================ */
[data-theme="light"] {
    /* Page background — barely-there blue tint */
    --bg-0: #f0f5ff;
    --bg-1: #e8eeff;
    --bg-2: #dde6ff;

    /* Panels: WHITE glass with blue border accents */
    --glass-bg:        rgba(255, 255, 255, 0.84);
    --glass-bg-strong: rgba(255, 255, 255, 0.97);
    --glass-bg-hover:  rgba(232, 242, 255, 0.97);
    --glass-border:        rgba(60, 130, 255, 0.22);
    --glass-border-strong: rgba(45, 110, 255, 0.42);
    --glass-highlight: rgba(255, 255, 255, 0.92);
    --glass-inner: inset 0 1px 0 0 rgba(255,255,255,.92),
                   inset 0 -1px 0 0 rgba(60, 120, 255, .07);

    /* Text — dark navy, readable on white */
    --text:       #0c1428;
    --text-muted: #3a4a72;
    --text-dim:   #5a6a8e;
    --text-faint: #8090b0;

    /* Shadows — blue-tinted */
    --sh-sm:          0 2px 8px  rgba(20, 60, 180, .09);
    --sh-md:          0 10px 30px rgba(15, 50, 160, .12);
    --sh-lg:          0 25px 60px rgba(10, 40, 140, .18);
    --sh-glow-cyan:   0 8px 32px rgba(50, 130, 255, .22);
    --sh-glow-violet: 0 8px 32px rgba(120, 80, 255, .14);
}

/* Light body + sky-blue aurora blobs */
[data-theme="light"] body { background: #f0f5ff; }

[data-theme="light"] body::before {
    background:
        radial-gradient(55% 45% at 8%  8%,  rgba(150, 200, 255, .35), transparent 70%),
        radial-gradient(45% 35% at 92% 10%, rgba(130, 190, 255, .28), transparent 70%),
        radial-gradient(50% 42% at 78% 92%, rgba(160, 210, 255, .24), transparent 70%),
        radial-gradient(40% 35% at  4% 88%, rgba(180, 220, 255, .20), transparent 70%);
}

[data-theme="light"] body::after {
    background:
        radial-gradient(35% 30% at 50% 50%, rgba(170, 215, 255, .16), transparent 70%),
        radial-gradient(28% 25% at 28% 62%, rgba(145, 200, 255, .12), transparent 70%);
}

[data-theme="light"] .bg-grain { opacity: 0.07; }

/* Navbar */
[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.50);
    border-color: rgba(60, 130, 255, 0.20);
}

/* Nav menu pill */
[data-theme="light"] .nav-menu {
    background: rgba(128, 209, 247, 0.719);
    border-color: rgba(60, 130, 255, 0.15);
}

/* Nav hover / active states (override dark rgba values) */
[data-theme="light"] .nav-link:hover {
    background: rgba(60, 130, 255, 0.09);
    color: var(--text);
}
[data-theme="light"] .nav-link.active {
    background: rgba(60, 130, 255, 0.14);
    color: var(--text);
}

/* Fix hardcoded dark icon in the brand circle */
[data-theme="light"] .nav-icon { color: #0a0e1c; }

/* Dropdowns */
[data-theme="light"] .dropdown-menu {
    background: rgba(250, 253, 255, 0.97) !important;
    border-color: rgba(60, 130, 255, 0.25);
}
[data-theme="light"] .dropdown-link { color: var(--text-muted) !important; }
[data-theme="light"] .dropdown-link:hover {
    background: rgba(60, 130, 255, 0.09);
    color: var(--text) !important;
}
[data-theme="light"] .language-dropdown-compact {
    background: rgba(250, 253, 255, 0.97);
    border-color: rgba(60, 130, 255, 0.22);
}
[data-theme="light"] .language-option { color: var(--text-muted); }
[data-theme="light"] .language-option:hover,
[data-theme="light"] .language-option.active {
    background: rgba(60, 130, 255, 0.09);
    color: var(--text);
}

/* Footer */
[data-theme="light"] .footer {
    background: rgba(255, 255, 255, 0.84);
    border-color: rgba(60, 130, 255, 0.20);
}

/* Table container (overrides dark rgba(0,0,0,0.15)) */
[data-theme="light"] .table-container {
    background: rgba(255, 255, 255, 0.60);
    border-color: rgba(60, 130, 255, 0.18);
}

/* Table cells (overrides dark rgba(255,255,255,0.05) borders) */
[data-theme="light"] table thead {
    background: rgba(220, 235, 255, 0.65);
}
[data-theme="light"] table th { color: var(--text-muted); }
[data-theme="light"] table td {
    border-top-color: rgba(60, 130, 255, 0.10);
}
[data-theme="light"] table tbody tr:hover {
    background: rgba(60, 130, 255, 0.07);
}

/* Info / filter boxes (override dark rgba(0,0,0,0.2)) */
[data-theme="light"] .filter-box,
[data-theme="light"] .exam-info-box,
[data-theme="light"] .timestamp-info,
[data-theme="light"] .results-summary {
    background: rgba(220, 235, 255, 0.55);
    border-color: rgba(60, 130, 255, 0.20);
}
[data-theme="light"] .exam-info-box { border-left-color: var(--c-cyan); }

/* Action buttons (override dark backgrounds) */
[data-theme="light"] .action-btn {
    background: rgba(255, 255, 255, 0.78);
    border-color: rgba(60, 130, 255, 0.20);
    color: var(--text);
}
[data-theme="light"] .action-btn.secondary {
    background: rgba(220, 235, 255, 0.55);
}
[data-theme="light"] .action-btn:hover {
    background: rgba(60, 130, 255, 0.10);
    border-color: rgba(60, 130, 255, 0.35);
    color: var(--text);
}

/* Form inputs */
[data-theme="light"] input,
[data-theme="light"] select,
[data-theme="light"] textarea {
    background: rgba(255, 255, 255, 0.90);
    border-color: rgba(60, 130, 255, 0.28);
    color: var(--text);
}
[data-theme="light"] input:hover,
[data-theme="light"] select:hover,
[data-theme="light"] textarea:hover {
    background: rgba(255, 255, 255, 0.98);
}
[data-theme="light"] input:focus,
[data-theme="light"] select:focus,
[data-theme="light"] textarea:focus {
    border-color: rgba(45, 110, 255, 0.75);
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(60, 130, 255, 0.18);
}

/* Checkboxes */
[data-theme="light"] .checkbox-group {
    background: rgba(220, 235, 255, 0.45);
    border-color: rgba(60, 130, 255, 0.18);
}
[data-theme="light"] .checkbox-item {
    background: rgba(255, 255, 255, 0.72);
    border-color: rgba(60, 130, 255, 0.18);
}
[data-theme="light"] .checkbox-item label { color: var(--text); }
[data-theme="light"] .checkbox-item:has(input:checked) {
    background: rgba(60, 130, 255, 0.14);
    border-color: rgba(45, 110, 255, 0.40);
}

/* Inline forms */
[data-theme="light"] .inline-add-form,
[data-theme="light"] .inline-form {
    background: rgba(220, 235, 255, 0.45);
    border-color: rgba(60, 130, 255, 0.18);
}

/* Question items */
[data-theme="light"] .question-item {
    background: rgba(220, 235, 255, 0.45);
    border-color: rgba(60, 130, 255, 0.22);
    border-left-color: var(--c-cyan);
}

/* Developer cards */
[data-theme="light"] .developer {
    background: rgba(220, 235, 255, 0.45);
    border-color: rgba(60, 130, 255, 0.18);
}

/* Mono pill */
[data-theme="light"] .mono {
    background: rgba(215, 232, 255, 0.65);
    border-color: rgba(60, 130, 255, 0.25);
    color: oklch(40% 0.18 240);
}

/* Count pill */
[data-theme="light"] .count-pill {
    background: rgba(210, 230, 255, 0.72);
    border-color: rgba(60, 130, 255, 0.22);
    color: var(--text);
}

/* Buttons — solid, readable on light bg */
[data-theme="light"] .btn-primary {
    background: linear-gradient(135deg, oklch(52% 0.18 230), oklch(47% 0.20 245));
    border-color: oklch(44% 0.18 235 / 0.70);
    color: #ffffff;
    box-shadow: var(--glass-inner), 0 4px 18px rgba(40, 110, 255, 0.28);
}
[data-theme="light"] .btn-primary:hover {
    background: linear-gradient(135deg, oklch(56% 0.18 228), oklch(51% 0.20 242));
    border-color: oklch(48% 0.18 232 / 0.80);
    color: #ffffff;
}
[data-theme="light"] .btn-success {
    background: linear-gradient(135deg, oklch(48% 0.18 155), oklch(44% 0.17 170));
    border-color: oklch(42% 0.17 158 / 0.70);
    color: #ffffff;
    box-shadow: var(--glass-inner), 0 4px 18px rgba(20, 160, 100, 0.22);
}
[data-theme="light"] .btn-success:hover {
    background: linear-gradient(135deg, oklch(52% 0.18 155), oklch(48% 0.17 170));
    color: #ffffff;
}
[data-theme="light"] .btn-danger {
    background: linear-gradient(135deg, oklch(50% 0.22 25), oklch(46% 0.24 10));
    border-color: oklch(44% 0.22 20 / 0.70);
    color: #ffffff;
    box-shadow: var(--glass-inner), 0 4px 18px rgba(220, 50, 50, 0.20);
}
[data-theme="light"] .btn-danger:hover {
    background: linear-gradient(135deg, oklch(54% 0.22 25), oklch(50% 0.24 10));
    color: #ffffff;
}
[data-theme="light"] .btn-warning {
    background: linear-gradient(135deg, oklch(62% 0.18 75), oklch(58% 0.19 60));
    border-color: oklch(55% 0.17 72 / 0.70);
    color: #ffffff;
}
[data-theme="light"] .btn-warning:hover {
    background: linear-gradient(135deg, oklch(66% 0.18 75), oklch(62% 0.19 60));
    color: #ffffff;
}
[data-theme="light"] .btn-secondary { color: var(--text-muted); }
[data-theme="light"] .btn-secondary:hover { color: var(--text); }

/* Mobile dropdown override */
[data-theme="light"] .nav-links.mobile-open .dropdown-menu {
    background: rgba(240, 248, 255, 0.96) !important;
}

/* Score tables */
[data-theme="light"] .score-inp {
    background: rgba(255, 255, 255, 0.88);
    border-color: rgba(60, 130, 255, 0.28);
    color: var(--text);
}

/* ---- Theme toggle button ---- */
.theme-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: var(--r-pill);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-muted);
    cursor: pointer;
    transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
    flex-shrink: 0;
}
.theme-toggle-btn:hover {
    background: var(--glass-bg-hover);
    color: var(--text);
    border-color: var(--glass-border-strong);
}
.theme-toggle-btn svg { display: block; }

/* ---- Language code badge (replaces emoji flags) ---- */
.lang-code {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 18px;
    border-radius: 4px;
    background: var(--glass-bg-strong);
    border: 1px solid var(--glass-border);
    font-size: .65rem;
    font-weight: 800;
    letter-spacing: .04em;
    color: var(--text);
}

/* ---- Pagination ---- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .3rem;
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 .5rem;
    border-radius: var(--r-sm);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: .875rem;
    font-weight: 500;
    text-decoration: none;
    transition: background .15s var(--ease), color .15s var(--ease), border-color .15s var(--ease);
    cursor: pointer;
    user-select: none;
    line-height: 1;
}
a.page-btn:hover {
    background: var(--glass-bg-hover);
    color: var(--text);
    border-color: var(--glass-border-strong);
}
.page-btn.active {
    background: var(--c-cyan);
    color: var(--bg-0);
    border-color: var(--c-cyan);
    font-weight: 700;
}
.page-btn.disabled {
    opacity: .35;
    cursor: default;
    pointer-events: none;
}
.page-btn.ellipsis {
    background: transparent;
    border-color: transparent;
    cursor: default;
    color: var(--text-muted);
    min-width: 20px;
}