/* =========================================================
   FREUMIA STUDENTS AI
   Leaderboard V2
   Visual layer only — no data or business logic.
========================================================= */

/* =========================================================
   1. RESET / FOUNDATION
========================================================= */
:root {
    --lb-bg: #071126;
    --lb-bg-deep: #040a18;
    --lb-surface: rgba(16, 29, 59, 0.78);
    --lb-surface-strong: rgba(18, 32, 66, 0.94);
    --lb-surface-soft: rgba(29, 45, 82, 0.52);
    --lb-border: rgba(150, 173, 226, 0.18);
    --lb-border-strong: rgba(105, 88, 255, 0.52);

    --lb-text: #f7f8ff;
    --lb-text-soft: #c6cee4;
    --lb-text-muted: #8995b4;

    --lb-purple: #7548ff;
    --lb-purple-bright: #8b5cff;
    --lb-blue: #4b7cff;
    --lb-cyan: #62d9ff;

    --lb-gold: #ffbd24;
    --lb-silver: #c7d0df;
    --lb-bronze: #e77a2d;

    --lb-green: #42dc88;
    --lb-danger: #ff5664;

    --lb-radius-sm: 10px;
    --lb-radius-md: 16px;
    --lb-radius-lg: 22px;
    --lb-radius-xl: 28px;

    --lb-shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
    --lb-shadow-soft: 0 12px 35px rgba(0, 0, 0, 0.2);

    --lb-max-width: 1180px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    scroll-behavior: smooth;
}

body#leaderboard-page {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    color: var(--lb-text);
    background:
        radial-gradient(circle at 50% 0%, rgba(72, 61, 180, 0.24), transparent 30rem),
        radial-gradient(circle at 10% 28%, rgba(46, 92, 210, 0.11), transparent 24rem),
        linear-gradient(180deg, var(--lb-bg-deep) 0%, var(--lb-bg) 42%, #0a1b40 100%);
    font-family:
        Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
        "Segoe UI", sans-serif;
    line-height: 1.5;
    overflow-x: hidden;
}

button,
a {
    font: inherit;
}

button {
    color: inherit;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* =========================================================
   2. PAGE SHELL
========================================================= */
#leaderboard-app {
    width: 100%;
    min-height: 100vh;
}

#leaderboard-main {
    width: min(100% - 32px, var(--lb-max-width));
    margin: 0 auto;
    padding: 42px 0 32px;
}

/* =========================================================
   3. HEADER / NAVIGATION
========================================================= */
#leaderboard-header {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    border-bottom: 1px solid rgba(130, 151, 204, 0.1);
    background: rgba(4, 10, 24, 0.76);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

#leaderboard-nav {
    width: min(100% - 32px, var(--lb-max-width));
    min-height: 76px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

#brand-link {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    min-width: max-content;
    transition: opacity 180ms ease, transform 180ms ease;
}

#brand-link:hover {
    opacity: 0.92;
    transform: translateY(-1px);
}

#brand-icon {
    display: grid;
    width: 39px;
    height: 39px;
    place-items: center;
    color: #c5b2ff;
    border: 1px solid rgba(139, 92, 255, 0.42);
    border-radius: 12px;
    background: linear-gradient(145deg, rgba(111, 73, 255, 0.3), rgba(46, 67, 141, 0.18));
    box-shadow: 0 0 25px rgba(103, 71, 255, 0.16);
}

#brand-name {
    color: #f5f2ff;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 0.05em;
}

#brand-name span {
    color: var(--lb-purple-bright);
}

#leaderboard-nav-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

.nav-link {
    position: relative;
    padding: 10px 13px;
    color: var(--lb-text-soft);
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    transition:
        color 180ms ease,
        background 180ms ease;
}

.nav-link:hover,
.nav-link-active {
    color: #ffffff;
    background: rgba(111, 80, 255, 0.13);
}

.nav-link-active::after {
    position: absolute;
    right: 13px;
    bottom: 5px;
    left: 13px;
    height: 2px;
    content: "";
    border-radius: 99px;
    background: linear-gradient(90deg, var(--lb-purple), var(--lb-blue));
}

#notification-button {
    position: relative;
    display: grid;
    width: 42px;
    height: 42px;
    margin-left: 5px;
    place-items: center;
    border: 1px solid var(--lb-border);
    border-radius: 12px;
    background: rgba(20, 35, 68, 0.58);
    cursor: pointer;
    transition:
        transform 180ms ease,
        border-color 180ms ease,
        background 180ms ease;
}

#notification-button:hover {
    transform: translateY(-1px);
    border-color: rgba(139, 92, 255, 0.45);
    background: rgba(36, 48, 91, 0.8);
}

#notification-count {
    position: absolute;
    top: -5px;
    right: -5px;
    display: grid;
    width: 20px;
    height: 20px;
    place-items: center;
    color: #ffffff;
    border: 2px solid var(--lb-bg-deep);
    border-radius: 50%;
    background: linear-gradient(145deg, #7c45ff, #4d36d9);
    font-size: 10px;
    font-weight: 800;
}

#mobile-menu-button {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--lb-border);
    border-radius: 12px;
    background: rgba(20, 35, 68, 0.6);
    cursor: pointer;
}

/* =========================================================
   4. HERO
========================================================= */
#leaderboard-hero {
    position: relative;
    padding: 20px 16px 28px;
    text-align: center;
}

#leaderboard-hero-icon {
    display: grid;
    width: 62px;
    height: 62px;
    margin: 0 auto 10px;
    place-items: center;
    color: #d7c8ff;
    border: 1px solid rgba(134, 99, 255, 0.42);
    border-radius: 19px;
    background:
        radial-gradient(circle at 50% 35%, rgba(145, 107, 255, 0.34), transparent 65%),
        rgba(21, 34, 70, 0.75);
    box-shadow:
        0 0 35px rgba(100, 72, 255, 0.22),
        inset 0 0 25px rgba(93, 69, 204, 0.08);
    font-size: 28px;
}

#leaderboard-eyebrow {
    margin: 0 0 2px;
    color: #b9a4ff;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

#leaderboard-title {
    margin: 0;
    background: linear-gradient(90deg, #a88aff 5%, #f2efff 48%, #8e78ff 95%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: clamp(38px, 6vw, 64px);
    font-weight: 900;
    letter-spacing: -0.045em;
    line-height: 1.04;
    text-shadow: 0 10px 40px rgba(112, 75, 255, 0.12);
}

#leaderboard-subtitle {
    margin: 10px 0 0;
    color: var(--lb-text-muted);
    font-size: clamp(14px, 2vw, 18px);
}

/* =========================================================
   5. PERIOD TABS
========================================================= */
#leaderboard-period-section {
    margin-bottom: 22px;
}

#leaderboard-period-tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    padding: 4px;
    overflow: hidden;
    border: 1px solid var(--lb-border);
    border-radius: 16px;
    background: rgba(11, 20, 41, 0.84);
    box-shadow: var(--lb-shadow-soft);
}

.period-tab {
    min-height: 50px;
    padding: 10px 15px;
    color: var(--lb-text-soft);
    border: 0;
    border-radius: 12px;
    background: transparent;
    cursor: pointer;
    font-size: 15px;
    font-weight: 700;
    transition:
        color 180ms ease,
        background 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.period-tab:hover {
    color: #ffffff;
    background: rgba(100, 73, 255, 0.1);
}

.period-tab-active {
    color: #ffffff;
    background: linear-gradient(100deg, #4521e4, #6943ff);
    box-shadow:
        0 8px 24px rgba(89, 54, 255, 0.28),
        inset 0 1px 0 rgba(255, 255, 255, 0.13);
}

/* =========================================================
   6. GLOBAL STATS
========================================================= */
#leaderboard-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-bottom: 42px;
    overflow: hidden;
    border: 1px solid var(--lb-border);
    border-radius: 17px;
    background: rgba(8, 17, 36, 0.76);
    box-shadow: var(--lb-shadow-soft);
}

.leaderboard-stat-card {
    position: relative;
    display: flex;
    min-height: 115px;
    padding: 19px 18px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.leaderboard-stat-card + .leaderboard-stat-card::before {
    position: absolute;
    top: 20px;
    bottom: 20px;
    left: 0;
    width: 1px;
    content: "";
    background: var(--lb-border);
}

.stat-icon {
    margin-bottom: 4px;
    font-size: 20px;
}

.stat-icon-students {
    color: #5790ff;
}

.stat-icon-schools {
    color: #8d87ff;
}

.stat-icon-quizzes {
    color: #ff9e28;
}

.stat-icon-accuracy {
    color: #f37fc0;
}

.stat-value {
    color: #f7f8ff;
    font-size: 21px;
    font-weight: 850;
    line-height: 1.15;
}

.stat-label {
    margin-top: 3px;
    color: var(--lb-text-muted);
    font-size: 13px;
    font-weight: 500;
}

/* =========================================================
   7. PODIUM
========================================================= */
#top-three-section {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: end;
    gap: 16px;
    margin-bottom: 24px;
}

.podium-card {
    position: relative;
    min-width: 0;
    min-height: 330px;
    padding: 35px 18px 20px;
    overflow: hidden;
    border: 1px solid var(--lb-border);
    border-radius: 19px;
    background:
        radial-gradient(circle at 50% 0%, rgba(87, 72, 189, 0.16), transparent 12rem),
        rgba(12, 25, 53, 0.9);
    text-align: center;
    box-shadow: var(--lb-shadow-soft);
    isolation: isolate;
}

.podium-card::after {
    position: absolute;
    inset: auto 15% -55px;
    z-index: -1;
    height: 120px;
    content: "";
    border-radius: 50%;
    filter: blur(35px);
    opacity: 0.3;
}

.podium-second {
    border-color: rgba(90, 103, 255, 0.44);
}

.podium-second::after {
    background: #5f67ff;
}

.podium-first {
    min-height: 375px;
    border-color: rgba(255, 190, 40, 0.62);
    background:
        radial-gradient(circle at 50% 0%, rgba(255, 188, 36, 0.16), transparent 13rem),
        rgba(21, 28, 51, 0.94);
    box-shadow:
        0 18px 55px rgba(0, 0, 0, 0.27),
        0 0 38px rgba(255, 186, 38, 0.08);
}

.podium-first::after {
    background: var(--lb-gold);
}

.podium-third {
    border-color: rgba(229, 109, 45, 0.48);
}

.podium-third::after {
    background: var(--lb-bronze);
}

.podium-rank-badge {
    position: absolute;
    top: 10px;
    left: 50%;
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    background: linear-gradient(145deg, #9aa6bb, #5f6879);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    font-size: 17px;
    font-weight: 900;
    transform: translateX(-50%);
}

.podium-first .podium-rank-badge {
    color: #ffffff;
    border-color: rgba(255, 221, 122, 0.72);
    background: linear-gradient(145deg, #ffd34c, #ed9e09);
    box-shadow: 0 7px 28px rgba(255, 182, 26, 0.3);
}

.podium-third .podium-rank-badge {
    background: linear-gradient(145deg, #ed8b45, #b84e19);
}

.podium-crown {
    position: absolute;
    top: 5px;
    left: 50%;
    color: #ffd34d;
    font-size: 15px;
    transform: translateX(-50%) translateY(-4px);
}

.podium-avatar-wrap {
    position: relative;
    display: grid;
    width: 104px;
    height: 104px;
    margin: 10px auto 12px;
    place-items: center;
}

.podium-first .podium-avatar-wrap {
    width: 116px;
    height: 116px;
}

.podium-avatar-wrap::before {
    position: absolute;
    inset: 0;
    content: "";
    border: 5px solid rgba(157, 174, 205, 0.76);
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgba(108, 125, 160, 0.08);
}

.podium-first .podium-avatar-wrap::before {
    border-color: var(--lb-gold);
    box-shadow:
        0 0 0 5px rgba(255, 192, 38, 0.09),
        0 0 32px rgba(255, 192, 38, 0.16);
}

.podium-third .podium-avatar-wrap::before {
    border-color: #dc7534;
}

.podium-avatar,
.podium-avatar-placeholder {
    width: 88%;
    height: 88%;
    border-radius: 50%;
}

.podium-avatar {
    object-fit: cover;
}

.podium-avatar-placeholder {
    display: grid;
    place-items: center;
    color: #8895b5;
    background: linear-gradient(145deg, #27385f, #131f3b);
    font-size: 30px;
}

.podium-avatar[hidden] {
    display: none;
}

.podium-country {
    min-height: 22px;
    margin-bottom: 2px;
    font-size: 18px;
}

.podium-name {
    margin: 2px 0 3px;
    color: #ffffff;
    font-size: clamp(17px, 2.1vw, 23px);
    font-weight: 850;
    line-height: 1.2;
}

.podium-location {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
    margin: 0;
    color: var(--lb-text-soft);
    font-size: 13px;
}

.podium-location i {
    color: var(--lb-purple-bright);
}

.podium-school {
    min-height: 39px;
    margin: 8px 0 10px;
    color: var(--lb-text-muted);
    font-size: 13px;
    line-height: 1.45;
}

.class-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    padding: 5px 10px;
    color: #c9bcff;
    border: 1px solid rgba(132, 103, 255, 0.38);
    border-radius: 8px;
    background: rgba(101, 69, 255, 0.12);
    font-size: 12px;
    font-weight: 750;
    line-height: 1.2;
    text-align: center;
}

.class-badge-gold {
    color: #ffd86a;
    border-color: rgba(255, 194, 49, 0.48);
    background: rgba(255, 186, 35, 0.12);
}

.class-badge-orange {
    color: #ffad69;
    border-color: rgba(234, 114, 41, 0.42);
    background: rgba(228, 101, 33, 0.11);
}

.class-badge-purple {
    color: #b7a4ff;
}

.class-badge-green {
    color: #65df93;
    border-color: rgba(55, 215, 127, 0.34);
    background: rgba(42, 198, 112, 0.09);
}

.class-badge-blue {
    color: #76a2ff;
    border-color: rgba(71, 126, 255, 0.36);
    background: rgba(63, 111, 236, 0.1);
}

.podium-score {
    display: block;
    margin-top: 13px;
    color: #a98cff;
    font-size: 18px;
    font-weight: 850;
}

.podium-first .podium-score {
    color: var(--lb-gold);
    font-size: 20px;
}

.podium-third .podium-score {
    color: #ff8b48;
}

.podium-score i {
    margin-right: 4px;
}

/* =========================================================
   8. LEADERBOARD TABLE
========================================================= */
#leaderboard-table-section {
    width: 100%;
}

#leaderboard-table-wrapper {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--lb-border);
    border-radius: 17px;
    background: rgba(7, 16, 35, 0.78);
    box-shadow: var(--lb-shadow-soft);
    scrollbar-width: thin;
    scrollbar-color: rgba(115, 87, 255, 0.55) transparent;
}

#leaderboard-table {
    width: 100%;
    min-width: 900px;
    border-collapse: collapse;
    table-layout: fixed;
}

#leaderboard-table thead {
    background: rgba(22, 35, 68, 0.62);
}

#leaderboard-table th {
    padding: 14px 12px;
    color: #9b8dff;
    border-bottom: 1px solid var(--lb-border);
    font-size: 11px;
    font-weight: 850;
    letter-spacing: 0.05em;
    text-align: left;
    text-transform: uppercase;
}

#leaderboard-table th:nth-child(1) {
    width: 72px;
}

#leaderboard-table th:nth-child(2) {
    width: 245px;
}

#leaderboard-table th:nth-child(3) {
    width: 145px;
}

#leaderboard-table th:nth-child(4) {
    width: 120px;
}

#leaderboard-table th:nth-child(5) {
    width: 220px;
}

#leaderboard-table th:nth-child(6) {
    width: 145px;
}

#leaderboard-table td {
    padding: 12px;
    color: var(--lb-text-soft);
    border-bottom: 1px solid rgba(126, 150, 205, 0.1);
    font-size: 12px;
    vertical-align: middle;
}

#leaderboard-table tbody tr:last-child td {
    border-bottom: 0;
}

#leaderboard-table tbody tr {
    transition: background 160ms ease;
}

#leaderboard-table tbody tr:hover {
    background: rgba(95, 72, 255, 0.065);
}

.rank-cell {
    text-align: center;
}

.rank-number {
    display: inline-grid;
    width: 36px;
    height: 36px;
    place-items: center;
    color: #d8dff0;
    border-radius: 9px;
    background: rgba(38, 52, 84, 0.68);
    font-size: 13px;
    font-weight: 850;
}

.student-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.student-avatar {
    flex: 0 0 auto;
    width: 38px;
    height: 38px;
    object-fit: cover;
    border: 2px solid rgba(128, 148, 193, 0.28);
    border-radius: 50%;
    background: #172647;
}

.student-identity {
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.student-identity strong {
    overflow: hidden;
    color: #f4f6ff;
    font-size: 13px;
    font-weight: 750;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.student-identity span {
    margin-top: 1px;
    color: var(--lb-text-muted);
    font-size: 11px;
}

.admission-cell {
    color: #aeb8d0 !important;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.class-cell {
    white-space: normal;
}

.school-cell {
    color: #aeb8d0 !important;
    line-height: 1.35;
}

.score-cell {
    color: #ad94ff !important;
    text-align: right;
    white-space: nowrap;
}

.score-cell strong {
    font-weight: 850;
}

.score-cell i {
    margin-right: 4px;
    color: var(--lb-purple-bright);
}

.leaderboard-state-row td {
    height: 120px;
    color: var(--lb-text-muted);
    text-align: center;
}

.leaderboard-loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.leaderboard-loading::before {
    width: 13px;
    height: 13px;
    content: "";
    border: 2px solid rgba(139, 92, 255, 0.25);
    border-top-color: var(--lb-purple-bright);
    border-radius: 50%;
    animation: leaderboard-spin 700ms linear infinite;
}

@keyframes leaderboard-spin {
    to {
        transform: rotate(360deg);
    }
}

/* =========================================================
   9. FULL LEADERBOARD CTA
========================================================= */
#full-leaderboard-section {
    margin-top: 13px;
}

#view-full-leaderboard-button {
    display: flex;
    width: 100%;
    min-height: 54px;
    align-items: center;
    justify-content: center;
    gap: 11px;
    padding: 10px 18px;
    color: #b7a0ff;
    border: 1px solid rgba(120, 83, 255, 0.54);
    border-radius: 13px;
    background:
        linear-gradient(90deg, rgba(68, 37, 172, 0.12), rgba(47, 41, 130, 0.08)),
        rgba(8, 18, 40, 0.68);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
    font-size: 16px;
    font-weight: 800;
    transition:
        transform 180ms ease,
        border-color 180ms ease,
        background 180ms ease,
        color 180ms ease;
}

#view-full-leaderboard-button:hover {
    color: #ffffff;
    border-color: rgba(139, 92, 255, 0.82);
    background:
        linear-gradient(90deg, rgba(83, 45, 210, 0.2), rgba(58, 51, 158, 0.14)),
        rgba(10, 20, 46, 0.82);
    transform: translateY(-1px);
}

.view-full-icon {
    color: #8e68ff;
    font-size: 19px;
}

.view-full-arrow {
    color: #8e68ff;
    font-size: 12px;
}

/* =========================================================
   10. MOTIVATION
========================================================= */
#leaderboard-motivation {
    position: relative;
    display: flex;
    min-height: 100px;
    margin-top: 20px;
    align-items: center;
    padding: 18px 190px 18px 24px;
    overflow: hidden;
    border-top: 1px solid rgba(112, 87, 255, 0.24);
    border-bottom: 1px solid rgba(112, 87, 255, 0.16);
    background: linear-gradient(90deg, rgba(19, 27, 59, 0.72), rgba(10, 19, 42, 0.35));
}

#motivation-icon {
    margin-right: 14px;
    color: #ffd044;
    font-size: 27px;
    filter: drop-shadow(0 5px 15px rgba(255, 196, 47, 0.2));
}

#motivation-message {
    margin: 0;
    color: #d6d9e9;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
}

#leaderboard-ai-mascot {
    position: absolute;
    right: 14px;
    bottom: -5px;
    width: 150px;
    height: 120px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    pointer-events: none;
}

#leaderboard-ai-mascot img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center bottom;
}

/* =========================================================
   11. FOOTER
========================================================= */
#leaderboard-footer {
    width: min(100% - 32px, var(--lb-max-width));
    margin: 0 auto;
    padding: 28px 0 32px;
    color: var(--lb-text-muted);
    text-align: center;
}

#footer-brand {
    margin: 0 0 3px;
    color: #9d8cff;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.1em;
}

#footer-copy {
    margin: 0;
    font-size: 11px;
}

/* =========================================================
   12. FOCUS / ACCESSIBILITY
========================================================= */
:where(a, button):focus-visible {
    outline: 2px solid #9d83ff;
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* =========================================================
   13. TABLET
========================================================= */
@media (max-width: 900px) {
    #leaderboard-main {
        width: min(100% - 24px, var(--lb-max-width));
        padding-top: 30px;
    }

    #leaderboard-nav {
        width: min(100% - 24px, var(--lb-max-width));
    }

    #top-three-section {
        gap: 10px;
    }

    .podium-card {
        padding-right: 12px;
        padding-left: 12px;
    }

    .podium-name {
        font-size: 17px;
    }

    #leaderboard-motivation {
        padding-right: 155px;
    }
}

/* =========================================================
   14. MOBILE NAV
========================================================= */
@media (max-width: 720px) {
    #leaderboard-nav {
        min-height: 66px;
    }

    #leaderboard-nav-actions {
        position: absolute;
        top: calc(100% + 8px);
        right: 12px;
        left: 12px;
        display: none;
        padding: 9px;
        flex-direction: column;
        align-items: stretch;
        border: 1px solid var(--lb-border);
        border-radius: 16px;
        background: rgba(7, 15, 34, 0.96);
        box-shadow: var(--lb-shadow);
        backdrop-filter: blur(20px);
    }

    #leaderboard-nav-actions.is-open {
        display: flex;
    }

    .nav-link {
        width: 100%;
        padding: 12px;
    }

    .nav-link-active::after {
        right: 12px;
        bottom: 7px;
        left: 12px;
    }

    #notification-button {
        width: 100%;
        margin: 2px 0 0;
    }

    #mobile-menu-button {
        display: grid;
        place-items: center;
    }

    #leaderboard-title {
        font-size: clamp(34px, 10vw, 46px);
    }

    #leaderboard-period-tabs {
        grid-template-columns: repeat(2, 1fr);
    }

    .period-tab {
        min-height: 46px;
        font-size: 13px;
    }

    #leaderboard-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .leaderboard-stat-card {
        min-height: 100px;
    }

    .leaderboard-stat-card:nth-child(3)::before {
        display: none;
    }

    .leaderboard-stat-card:nth-child(3),
    .leaderboard-stat-card:nth-child(4) {
        border-top: 1px solid var(--lb-border);
    }
  
    .leaderboard-stat-card:nth-child(3)::after,
    .leaderboard-stat-card:nth-child(4)::after {
        position: absolute;
        top: 0;
        left: 0;
        width: 1px;
        height: 100%;
        content: "";
        background: var(--lb-border);
    }

    .leaderboard-stat-card:nth-child(2)::before {
        display: block;
    }

    #top-three-section {
        grid-template-columns: 1fr 1fr;
        align-items: stretch;
    }

    .podium-first {
        grid-column: 1 / -1;
        grid-row: 1;
        min-height: 365px;
    }

    .podium-second {
        grid-column: 1;
        grid-row: 2;
    }

    .podium-third {
        grid-column: 2;
        grid-row: 2;
    }

    #leaderboard-motivation {
        min-height: 105px;
        padding-right: 125px;
    }

    #leaderboard-ai-mascot {
        width: 120px;
        height: 100px;
    }
      }
/* =========================================================
   15. SMALL MOBILE
========================================================= */
@media (max-width: 480px) {
    #leaderboard-main {
        width: min(100% - 16px, var(--lb-max-width));
        padding-top: 22px;
    }

    #leaderboard-nav {
        width: min(100% - 16px, var(--lb-max-width));
    }

    #brand-icon {
        width: 35px;
        height: 35px;
        border-radius: 10px;
    }

    #brand-name {
        font-size: 12px;
    }

    #leaderboard-hero {
        padding: 14px 7px 22px;
    }

    #leaderboard-hero-icon {
        width: 54px;
        height: 54px;
        font-size: 24px;
    }

    #leaderboard-eyebrow {
        font-size: 10px;
    }

    #leaderboard-title {
        font-size: 34px;
    }

    #leaderboard-subtitle {
        font-size: 13px;
    }

    #leaderboard-stats {
        margin-bottom: 28px;
    }

    .leaderboard-stat-card {
        min-height: 92px;
        padding: 13px 8px;
    }

    .stat-icon {
        font-size: 17px;
    }

    .stat-value {
        font-size: 17px;
    }

    .stat-label {
        font-size: 10px;
    }

    #top-three-section {
        gap: 8px;
    }
  
    .podium-card {
        min-height: 275px;
        padding: 30px 9px 15px;
        border-radius: 16px;
    }

    .podium-first {
        min-height: 330px;
    }

    .podium-avatar-wrap {
        width: 78px;
        height: 78px;
        margin-top: 8px;
    }

    .podium-first .podium-avatar-wrap {
        width: 94px;
        height: 94px;
    }

    .podium-name {
        font-size: 14px;
    }

    .podium-location,
    .podium-school {
        font-size: 10px;
    }

    .podium-school {
        min-height: 31px;
    }

    .podium-score {
        margin-top: 9px;
        font-size: 13px;
    }

    .podium-first .podium-score {
        font-size: 15px;
    }

    .class-badge {
        padding: 4px 7px;
        font-size: 9px;
    }

    .podium-rank-badge {
        width: 34px;
        height: 34px;
        font-size: 14px;
    }

    #leaderboard-table-wrapper {
        border-radius: 13px;
    }

    #view-full-leaderboard-button {
        min-height: 49px;
        font-size: 13px;
    }

    #leaderboard-motivation {
        min-height: 94px;
        padding: 14px 92px 14px 13px;
    }

    #motivation-icon {
        margin-right: 9px;
        font-size: 21px;
    }

    #motivation-message {
        font-size: 12px;
    }

    #leaderboard-ai-mascot {
        right: 4px;
        width: 92px;
        height: 82px;
    }

    #leaderboard-footer {
        width: min(100% - 16px, var(--lb-max-width));
    }
}