/* ============================================================
   QuizNesia — stylesheet
   ============================================================ */

:root {
    --bg: #070a10;
    --bg-2: #0a0f18;
    --ink: #f2f6fc;
    --muted: #93a1b8;
    --muted-2: #6b7a92;
    --line: rgba(255, 255, 255, 0.09);
    --line-strong: rgba(255, 255, 255, 0.16);
    --card: rgba(15, 21, 34, 0.72);
    --card-solid: #0e1521;
    --accent: #ff7a2f;
    --accent-2: #ffc857;
    --accent-soft: rgba(255, 122, 47, 0.14);
    --mint: #3ddc97;
    --mint-soft: rgba(61, 220, 151, 0.12);
    --danger: #ff6172;
    --danger-soft: rgba(255, 97, 114, 0.12);
    --violet: #8b93ff;
    --radius: 22px;
    --radius-sm: 14px;
    --shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.9);
    --font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, p {
    margin: 0;
}

a {
    color: inherit;
}

button, input {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
}

[hidden] {
    display: none !important;
}

::selection {
    background: rgba(255, 122, 47, 0.35);
}

/* ------------------------------- background ------------------------------- */
.aurora {
    position: fixed;
    inset: 0;
    z-index: -2;
    overflow: hidden;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.55;
    animation: drift 18s ease-in-out infinite alternate;
}

.orb-1 {
    width: 52vw;
    height: 52vw;
    left: -14vw;
    top: -18vw;
    background: radial-gradient(circle, rgba(255, 122, 47, 0.5), transparent 65%);
}

.orb-2 {
    width: 46vw;
    height: 46vw;
    right: -12vw;
    top: 8vh;
    background: radial-gradient(circle, rgba(90, 104, 255, 0.38), transparent 65%);
    animation-delay: -6s;
}

.orb-3 {
    width: 40vw;
    height: 40vw;
    left: 30vw;
    bottom: -24vw;
    background: radial-gradient(circle, rgba(61, 220, 151, 0.24), transparent 65%);
    animation-delay: -11s;
}

@keyframes drift {
    from { transform: translate3d(0, 0, 0) scale(1); }
    to   { transform: translate3d(4vw, 3vh, 0) scale(1.12); }
}

.grid-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 40%, transparent 100%);
}

/* ------------------------------- header ------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    display: flex;
    align-items: center;
    gap: 22px;
    padding: 16px clamp(18px, 5vw, 64px);
    background: rgba(7, 10, 16, 0.72);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    margin-right: auto;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 13px;
    background: linear-gradient(145deg, var(--accent), #ff9c4d);
    color: #1a0d04;
    font-weight: 900;
    font-size: 1.25rem;
    box-shadow: 0 10px 30px -10px rgba(255, 122, 47, 0.9), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.brand-mark.small {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    font-size: 1rem;
}

.brand-text {
    display: flex;
    flex-direction: column;
    font-weight: 800;
    font-size: 1.12rem;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.brand-text span {
    color: var(--accent);
}

.brand-text small {
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--muted-2);
    margin-top: 3px;
}

.site-nav {
    display: flex;
    gap: 4px;
    padding: 4px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.03);
}

.nav-link {
    border: 0;
    background: transparent;
    color: var(--muted);
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.2s, background 0.2s;
}

.nav-link:hover {
    color: var(--ink);
}

.nav-link.is-active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--ink);
}

.dn-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 15px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--muted);
    text-decoration: none;
    transition: border-color 0.2s, color 0.2s;
}

.dn-pill:hover {
    border-color: var(--line-strong);
    color: var(--ink);
}

.dn-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--mint);
    box-shadow: 0 0 0 4px rgba(61, 220, 151, 0.16);
}

/* ------------------------------- layout ------------------------------- */
.site-main {
    width: min(1180px, 100%);
    margin: 0 auto;
    padding: clamp(26px, 5vw, 64px) clamp(18px, 5vw, 64px) 72px;
}

.screen {
    display: none;
}

.screen.is-active {
    display: block;
    animation: screen-in 0.45s cubic-bezier(0.2, 0.7, 0.2, 1);
}

@keyframes screen-in {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 7px 13px;
    border: 1px solid rgba(255, 122, 47, 0.3);
    border-radius: 999px;
    background: rgba(255, 122, 47, 0.08);
    color: #ffc7a2;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.pulse {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 0 rgba(255, 122, 47, 0.6);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(255, 122, 47, 0.55); }
    70%  { box-shadow: 0 0 0 9px rgba(255, 122, 47, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 122, 47, 0); }
}

.grad {
    background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 55%, #ffe4a3 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ------------------------------- home ------------------------------- */
.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
    gap: clamp(28px, 5vw, 68px);
    align-items: start;
}

.hero-copy h1 {
    margin: 22px 0 18px;
    font-size: clamp(2.3rem, 4.6vw, 4rem);
    line-height: 1.06;
    letter-spacing: -0.045em;
    font-weight: 850;
}

.lead {
    max-width: 58ch;
    color: var(--muted);
    font-size: clamp(1rem, 1.2vw, 1.1rem);
}

.feature-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin: 26px 0 30px;
    padding: 0;
    list-style: none;
}

.feature-chips li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.03);
    color: #cbd6e6;
    font-size: 0.86rem;
    font-weight: 600;
}

.stats-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.stat {
    min-width: 112px;
    padding: 14px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
}

.stat-value {
    display: block;
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted-2);
    font-weight: 700;
}

.play-card {
    position: relative;
    padding: 2px;
    border-radius: calc(var(--radius) + 2px);
    background: linear-gradient(160deg, rgba(255, 122, 47, 0.55), rgba(139, 147, 255, 0.28) 42%, rgba(255, 255, 255, 0.06) 75%);
    box-shadow: var(--shadow);
}

.play-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(160deg, rgba(255, 122, 47, 0.55), rgba(139, 147, 255, 0.2) 45%, transparent 80%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.play-card form {
    padding: clamp(22px, 3vw, 30px);
    border-radius: var(--radius);
    background:
        radial-gradient(120% 90% at 100% 0%, rgba(255, 122, 47, 0.1), transparent 55%),
        linear-gradient(180deg, #111827, #0b111b);
}

.play-card-head h2 {
    margin: 12px 0 6px;
    font-size: 1.6rem;
    letter-spacing: -0.03em;
}

.play-card-head p {
    color: var(--muted);
    font-size: 0.92rem;
}

.play-badge {
    display: inline-block;
    padding: 5px 11px;
    border-radius: 999px;
    background: rgba(61, 220, 151, 0.12);
    color: var(--mint);
    border: 1px solid rgba(61, 220, 151, 0.25);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.field {
    margin-top: 20px;
    border: 0;
    padding: 0;
    min-width: 0;
}

.field > label,
.field > legend {
    display: block;
    margin-bottom: 8px;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #cbd6e6;
    padding: 0;
}

.field input[type="text"] {
    width: 100%;
    padding: 14px 16px;
    border-radius: 13px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.04);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.field input[type="text"]::placeholder {
    color: var(--muted-2);
}

.field input[type="text"]:focus {
    border-color: rgba(255, 122, 47, 0.65);
    box-shadow: 0 0 0 4px rgba(255, 122, 47, 0.14);
    background: rgba(255, 255, 255, 0.06);
}

.hint {
    display: block;
    margin-top: 6px;
    font-size: 0.74rem;
    color: var(--muted-2);
}

.cat-list {
    display: grid;
    gap: 9px;
}

.cat {
    position: relative;
    display: block;
    cursor: pointer;
}

.cat input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.cat-body {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 13px;
    background: rgba(255, 255, 255, 0.025);
    transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.cat:hover .cat-body {
    border-color: var(--line-strong);
    transform: translateY(-1px);
}

.cat-icon {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    flex: 0 0 auto;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    font-size: 1rem;
}

.cat-text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
    min-width: 0;
}

.cat-text strong {
    font-size: 0.92rem;
    font-weight: 700;
}

.cat-text small {
    font-size: 0.74rem;
    color: var(--muted-2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cat-check {
    margin-left: auto;
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
    border-radius: 50%;
    border: 1.5px solid var(--line-strong);
    position: relative;
    transition: border-color 0.2s, background 0.2s;
}

.cat-check::after {
    content: "";
    position: absolute;
    inset: 4px;
    border-radius: 50%;
    background: #1a0d04;
    transform: scale(0);
    transition: transform 0.15s;
}

.cat input:checked + .cat-body {
    border-color: rgba(255, 122, 47, 0.65);
    background: linear-gradient(90deg, rgba(255, 122, 47, 0.14), rgba(255, 122, 47, 0.04));
}

.cat input:checked + .cat-body .cat-check {
    border-color: var(--accent);
    background: var(--accent);
}

.cat input:checked + .cat-body .cat-check::after {
    transform: scale(1);
}

.cat input:focus-visible + .cat-body {
    box-shadow: 0 0 0 3px rgba(255, 122, 47, 0.35);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 13px 20px;
    border-radius: 13px;
    border: 1px solid transparent;
    font-weight: 750;
    font-size: 0.95rem;
    text-decoration: none;
    transition: transform 0.15s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.btn:active {
    transform: translateY(1px) scale(0.995);
}

.btn-primary {
    background: linear-gradient(140deg, var(--accent), #ff9a4a);
    color: #1c0e04;
    box-shadow: 0 14px 34px -16px rgba(255, 122, 47, 0.9), inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.btn-primary:hover {
    box-shadow: 0 18px 42px -14px rgba(255, 122, 47, 0.95), inset 0 1px 0 rgba(255, 255, 255, 0.5);
    transform: translateY(-1px);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.045);
    border-color: var(--line-strong);
    color: #dbe4f2;
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(255, 255, 255, 0.26);
}

.btn-lg {
    width: 100%;
    padding: 16px 22px;
    font-size: 1rem;
    margin-top: 22px;
    justify-content: space-between;
}

.btn-arrow {
    font-size: 1.15rem;
    transition: transform 0.2s;
}

.btn-lg:hover .btn-arrow {
    transform: translateX(3px);
}

.fineprint {
    margin-top: 12px;
    text-align: center;
    font-size: 0.72rem;
    color: var(--muted-2);
}

.home-bottom {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.9fr);
    gap: 20px;
    margin-top: clamp(34px, 5vw, 56px);
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.info-card {
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.008));
}

.info-icon {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 11px;
    background: rgba(255, 122, 47, 0.1);
    border: 1px solid rgba(255, 122, 47, 0.2);
    margin-bottom: 14px;
    font-size: 1.05rem;
}

.info-card h3 {
    font-size: 0.95rem;
    letter-spacing: -0.01em;
    margin-bottom: 6px;
}

.info-card p {
    font-size: 0.82rem;
    color: var(--muted);
}

.mini-board {
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(12, 18, 29, 0.7);
}

.mini-board-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.mini-board-head h3 {
    font-size: 0.95rem;
}

.text-btn {
    border: 0;
    background: transparent;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
}

.text-btn:hover {
    text-decoration: underline;
}

.mini-list {
    display: grid;
    gap: 9px;
}

.mini-row {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 10px 11px;
    border-radius: 11px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
}

.mini-row.is-me {
    border-color: rgba(255, 122, 47, 0.4);
    background: rgba(255, 122, 47, 0.07);
}

.mini-rank {
    width: 26px;
    height: 26px;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    font-size: 0.76rem;
    font-weight: 800;
}

.mini-rank.gold { background: rgba(255, 200, 87, 0.18); color: var(--accent-2); }
.mini-rank.silver { background: rgba(203, 213, 225, 0.15); color: #dbe4f2; }
.mini-rank.bronze { background: rgba(205, 127, 50, 0.18); color: #e8a87c; }

.mini-name {
    flex: 1;
    min-width: 0;
    font-size: 0.88rem;
    font-weight: 650;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mini-score {
    font-size: 0.82rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    color: var(--accent-2);
}

.mini-empty {
    padding: 16px 6px;
    text-align: center;
    font-size: 0.82rem;
    color: var(--muted-2);
}

/* ------------------------------- quiz ------------------------------- */
.quiz-shell {
    width: min(860px, 100%);
    margin: 0 auto;
}

.quiz-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.ghost-btn {
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.03);
    color: var(--muted);
    border-radius: 10px;
    padding: 9px 14px;
    font-size: 0.82rem;
    font-weight: 650;
    transition: color 0.2s, border-color 0.2s;
}

.ghost-btn:hover {
    color: var(--ink);
    border-color: var(--line-strong);
}

.quiz-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.quiz-counter {
    font-size: 0.82rem;
    color: var(--muted);
    font-weight: 650;
    margin-right: 4px;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.04);
    font-size: 0.78rem;
    font-weight: 750;
    font-variant-numeric: tabular-nums;
}

.chip-score {
    color: var(--accent-2);
    border-color: rgba(255, 200, 87, 0.28);
    background: rgba(255, 200, 87, 0.08);
}

.chip-streak {
    color: #ffb08a;
    border-color: rgba(255, 122, 47, 0.28);
    background: rgba(255, 122, 47, 0.08);
}

.chip-streak.hot {
    animation: hot 0.5s ease;
}

@keyframes hot {
    50% { transform: scale(1.12); }
}

.progress {
    height: 7px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.07);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 10%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    transition: width 0.35s ease;
}

.timer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 22px 2px 8px;
}

.timer-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted-2);
    font-weight: 750;
}

.timer-value {
    font-size: 0.9rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    color: var(--mint);
}

.timer-value.warn {
    color: var(--accent-2);
}

.timer-value.danger {
    color: var(--danger);
    animation: blink 0.8s steps(2, start) infinite;
}

@keyframes blink {
    50% { opacity: 0.45; }
}

.timer {
    height: 5px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.timer-fill {
    height: 100%;
    width: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--mint), #a7f3d0);
    transition: width 0.1s linear, background 0.3s;
}

.timer-fill.warn {
    background: linear-gradient(90deg, var(--accent-2), #ffe4a3);
}

.timer-fill.danger {
    background: linear-gradient(90deg, var(--danger), #ff9aa5);
}

.question-card {
    margin-top: 20px;
    padding: clamp(22px, 4vw, 34px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background:
        radial-gradient(120% 100% at 0% 0%, rgba(255, 122, 47, 0.07), transparent 55%),
        linear-gradient(180deg, rgba(17, 24, 39, 0.92), rgba(10, 15, 24, 0.92));
    box-shadow: var(--shadow);
}

.question-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.q-tag {
    display: inline-block;
    padding: 6px 11px;
    border-radius: 999px;
    background: rgba(139, 147, 255, 0.12);
    border: 1px solid rgba(139, 147, 255, 0.24);
    color: #c3c8ff;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.q-index {
    font-size: 0.75rem;
    color: var(--muted-2);
    font-variant-numeric: tabular-nums;
    font-weight: 700;
}

.q-text {
    margin: 18px 0 22px;
    font-size: clamp(1.25rem, 2.3vw, 1.7rem);
    line-height: 1.35;
    letter-spacing: -0.025em;
    font-weight: 760;
}

.options {
    display: grid;
    gap: 10px;
}

.option {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 15px 16px;
    text-align: left;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.03);
    color: #e7edf8;
    font-size: 0.95rem;
    line-height: 1.4;
    transition: border-color 0.18s, background 0.18s, transform 0.12s, opacity 0.2s;
}

.option:hover:not(:disabled) {
    border-color: rgba(255, 122, 47, 0.45);
    background: rgba(255, 122, 47, 0.07);
    transform: translateY(-1px);
}

.option:disabled {
    cursor: default;
}

.option-key {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    flex: 0 0 auto;
    border-radius: 9px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.05);
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--muted);
    transition: inherit;
}

.option-text {
    flex: 1;
}

.option-mark {
    width: 22px;
    flex: 0 0 auto;
    text-align: center;
    font-weight: 900;
    opacity: 0;
}

.option.is-correct {
    border-color: rgba(61, 220, 151, 0.6);
    background: rgba(61, 220, 151, 0.1);
}

.option.is-correct .option-key {
    border-color: rgba(61, 220, 151, 0.6);
    background: rgba(61, 220, 151, 0.18);
    color: var(--mint);
}

.option.is-correct .option-mark {
    opacity: 1;
    color: var(--mint);
}

.option.is-wrong {
    border-color: rgba(255, 97, 114, 0.55);
    background: rgba(255, 97, 114, 0.09);
}

.option.is-wrong .option-key {
    border-color: rgba(255, 97, 114, 0.55);
    background: rgba(255, 97, 114, 0.16);
    color: var(--danger);
}

.option.is-wrong .option-mark {
    opacity: 1;
    color: var(--danger);
}

.option.is-dimmed {
    opacity: 0.45;
}

.kbd-hint {
    margin-top: 18px;
    font-size: 0.72rem;
    color: var(--muted-2);
}

kbd {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 5px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.06);
    font-family: var(--font);
    font-size: 0.68rem;
    font-weight: 700;
}

.feedback {
    margin-top: 14px;
    padding: 20px 22px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(61, 220, 151, 0.28);
    background: linear-gradient(180deg, rgba(61, 220, 151, 0.08), rgba(61, 220, 151, 0.02));
    animation: rise 0.3s ease;
}

.feedback.is-wrong {
    border-color: rgba(255, 97, 114, 0.3);
    background: linear-gradient(180deg, rgba(255, 97, 114, 0.08), rgba(255, 97, 114, 0.02));
}

@keyframes rise {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.feedback-head {
    display: flex;
    align-items: center;
    gap: 13px;
}

.feedback-icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    flex: 0 0 auto;
    border-radius: 12px;
    background: rgba(61, 220, 151, 0.16);
    color: var(--mint);
    font-size: 1.15rem;
    font-weight: 900;
}

.feedback.is-wrong .feedback-icon {
    background: rgba(255, 97, 114, 0.16);
    color: var(--danger);
}

.feedback h3 {
    font-size: 1.05rem;
    letter-spacing: -0.01em;
}

.feedback-points {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--mint);
    font-variant-numeric: tabular-nums;
}

.feedback.is-wrong .feedback-points {
    color: var(--danger);
}

.feedback-explain {
    margin-top: 13px;
    font-size: 0.9rem;
    color: #c3cede;
}

.source-link {
    display: inline-block;
    margin-top: 10px;
    font-size: 0.8rem;
    font-weight: 650;
    color: var(--accent-2);
    text-decoration: none;
    border-bottom: 1px dashed rgba(255, 200, 87, 0.4);
}

.source-link:hover {
    color: #ffe4a3;
}

.feedback-next {
    margin-top: 16px;
    width: 100%;
    justify-content: space-between;
}

/* ------------------------------- result ------------------------------- */
.result-shell {
    width: min(720px, 100%);
    margin: 0 auto;
    text-align: center;
}

.result-hero .eyebrow {
    margin-bottom: 16px;
}

.result-score {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    margin: 8px 0 10px;
}

.result-score > span {
    font-size: clamp(3.6rem, 11vw, 6.4rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.055em;
    background: linear-gradient(120deg, var(--accent) 5%, var(--accent-2) 55%, #fff0c2);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-variant-numeric: tabular-nums;
}

.result-score small {
    color: var(--muted-2);
    font-size: 0.85rem;
    font-weight: 650;
}

.result-hero h2 {
    font-size: clamp(1.6rem, 3.4vw, 2.2rem);
    letter-spacing: -0.035em;
    margin-bottom: 6px;
}

.result-sub {
    color: var(--muted);
    font-size: 0.95rem;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin: 28px 0 16px;
}

.result-stat {
    padding: 16px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
}

.result-stat-icon {
    display: block;
    margin-bottom: 6px;
    font-size: 1rem;
}

.result-stat strong {
    display: block;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
}

.result-stat small {
    font-size: 0.7rem;
    color: var(--muted-2);
    font-weight: 650;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.rank-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 200, 87, 0.28);
    background: linear-gradient(90deg, rgba(255, 200, 87, 0.07), rgba(255, 122, 47, 0.07));
}

.rank-label {
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 750;
}

.rank-value {
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    color: var(--accent-2);
}

.rank-of {
    font-size: 0.8rem;
    color: var(--muted);
}

.save-form {
    margin-top: 16px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    text-align: left;
}

.save-form label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.82rem;
    font-weight: 650;
}

.save-row {
    display: flex;
    gap: 9px;
}

.save-row input {
    flex: 1;
    min-width: 0;
    padding: 12px 14px;
    border-radius: 11px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.04);
    outline: none;
}

.save-row input:focus {
    border-color: rgba(255, 122, 47, 0.6);
}

.result-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 22px;
}

.result-note {
    margin-top: 18px;
    font-size: 0.78rem;
    color: var(--muted-2);
    min-height: 1.2em;
}

/* ------------------------------- leaderboard ------------------------------- */
.board-shell {
    width: min(940px, 100%);
    margin: 0 auto;
}

.board-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 24px;
}

.board-head .eyebrow {
    margin-bottom: 14px;
}

.board-head h2 {
    font-size: clamp(1.7rem, 3.6vw, 2.5rem);
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 8px;
}

.board-head p {
    color: var(--muted);
    font-size: 0.92rem;
    max-width: 55ch;
}

.icon-btn {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    flex: 0 0 auto;
    border-radius: 12px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.04);
    color: var(--muted);
    font-size: 1.2rem;
    transition: transform 0.3s, color 0.2s, border-color 0.2s;
}

.icon-btn:hover {
    color: var(--ink);
    border-color: rgba(255, 255, 255, 0.28);
    transform: rotate(60deg);
}

.board-tools {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.tabs {
    display: flex;
    gap: 6px;
    padding: 5px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.025);
    overflow-x: auto;
    max-width: 100%;
}

.tab {
    border: 0;
    background: transparent;
    color: var(--muted);
    padding: 8px 15px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 700;
    white-space: nowrap;
    transition: background 0.2s, color 0.2s;
}

.tab:hover {
    color: var(--ink);
}

.tab.is-active {
    background: var(--accent);
    color: #1c0e04;
    box-shadow: 0 8px 20px -10px rgba(255, 122, 47, 0.9);
}

.board-summary {
    font-size: 0.78rem;
    color: var(--muted-2);
    font-weight: 600;
}

.board-table-wrap {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(12, 18, 29, 0.66);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.board-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.board-table th {
    text-align: left;
    padding: 14px 18px;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted-2);
    font-weight: 800;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.02);
    white-space: nowrap;
}

.board-table td {
    padding: 13px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.055);
    vertical-align: middle;
}

.board-table tbody tr:last-child td {
    border-bottom: 0;
}

.board-table tbody tr {
    transition: background 0.15s;
}

.board-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.025);
}

.board-table tbody tr.is-me {
    background: rgba(255, 122, 47, 0.07);
}

.board-table .num {
    text-align: right;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.rank-badge {
    display: inline-grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: rgba(255, 255, 255, 0.055);
    font-size: 0.78rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    color: var(--muted);
}

.rank-badge.gold { background: rgba(255, 200, 87, 0.16); color: var(--accent-2); }
.rank-badge.silver { background: rgba(203, 213, 225, 0.14); color: #e2e8f0; }
.rank-badge.bronze { background: rgba(205, 127, 50, 0.16); color: #e8a87c; }

.player-cell {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.player-avatar {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: linear-gradient(145deg, rgba(255, 122, 47, 0.28), rgba(139, 147, 255, 0.28));
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 0.76rem;
    font-weight: 800;
    text-transform: uppercase;
}

.player-name {
    font-weight: 650;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.score-cell {
    font-weight: 800;
    color: var(--accent-2);
}

.tag {
    display: inline-block;
    padding: 4px 9px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.04);
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--muted);
    white-space: nowrap;
}

.tag.produk { color: #ffc7a2; border-color: rgba(255, 122, 47, 0.24); background: rgba(255, 122, 47, 0.08); }
.tag.panduan { color: #c3c8ff; border-color: rgba(139, 147, 255, 0.24); background: rgba(139, 147, 255, 0.08); }
.tag.campuran { color: #a7f3d0; border-color: rgba(61, 220, 151, 0.24); background: rgba(61, 220, 151, 0.08); }

.col-date {
    color: var(--muted-2);
    font-size: 0.78rem;
    white-space: nowrap;
}

.board-empty {
    padding: 38px 18px !important;
    text-align: center;
    color: var(--muted-2);
    font-size: 0.88rem;
}

.board-note {
    margin-top: 14px;
    font-size: 0.74rem;
    color: var(--muted-2);
    text-align: center;
}

/* ------------------------------- footer ------------------------------- */
.site-footer {
    border-top: 1px solid var(--line);
    background: rgba(6, 9, 14, 0.65);
    margin-top: 20px;
}

.footer-inner {
    width: min(1180px, 100%);
    margin: 0 auto;
    padding: 30px clamp(18px, 5vw, 64px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-brand strong {
    display: block;
    font-size: 0.92rem;
}

.footer-brand p {
    font-size: 0.76rem;
    color: var(--muted-2);
}

.disclaimer,
.credit {
    font-size: 0.74rem;
    color: var(--muted-2);
    max-width: 46ch;
}

.disclaimer a,
.credit a {
    color: var(--muted);
    text-underline-offset: 3px;
}

.disclaimer a:hover,
.credit a:hover {
    color: var(--accent-2);
}

/* ------------------------------- toast ------------------------------- */
.toast {
    position: fixed;
    left: 50%;
    bottom: 28px;
    z-index: 90;
    transform: translate(-50%, 20px);
    padding: 12px 18px;
    border-radius: 12px;
    border: 1px solid var(--line-strong);
    background: rgba(20, 28, 42, 0.96);
    box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.9);
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s, transform 0.22s;
    max-width: min(92vw, 420px);
    text-align: center;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

.toast.error {
    border-color: rgba(255, 97, 114, 0.45);
    color: #ffd3d8;
}

/* ------------------------------- confetti ------------------------------- */
.confetti-piece {
    position: fixed;
    z-index: 80;
    width: 8px;
    height: 14px;
    top: -20px;
    pointer-events: none;
    border-radius: 2px;
    animation: confetti-fall linear forwards;
}

@keyframes confetti-fall {
    0%   { transform: translate3d(0, -10vh, 0) rotate(0deg); opacity: 1; }
    100% { transform: translate3d(var(--dx, 0), 105vh, 0) rotate(720deg); opacity: 0.8; }
}

/* ------------------------------- responsive ------------------------------- */
@media (max-width: 980px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-copy h1 {
        max-width: 18ch;
    }

    .home-bottom {
        grid-template-columns: 1fr;
    }

    .info-cards {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .play-card {
        max-width: 560px;
    }
}

@media (max-width: 760px) {
    .site-header {
        gap: 12px;
        padding: 12px 18px;
    }

    .dn-pill {
        display: none;
    }

    .brand-text small {
        display: none;
    }

    .site-main {
        padding-top: 26px;
    }

    .info-cards {
        grid-template-columns: 1fr;
    }

    .result-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .board-head {
        align-items: center;
    }

    .board-table th,
    .board-table td {
        padding: 12px 12px;
    }

    .col-date {
        display: none;
    }

    .board-table th:nth-child(5) {
        display: none;
    }

    .board-table td:nth-child(5) {
        display: none;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .site-nav {
        padding: 3px;
    }

    .nav-link {
        padding: 7px 12px;
        font-size: 0.82rem;
    }

    .brand-mark {
        width: 36px;
        height: 36px;
    }

    .hero-copy h1 {
        font-size: 2.05rem;
    }

    .stats-strip {
        gap: 8px;
    }

    .stat {
        min-width: 0;
        flex: 1;
        padding: 11px 13px;
    }

    .stat-value {
        font-size: 1.2rem;
    }

    .stat-label {
        font-size: 0.62rem;
    }

    .quiz-meta {
        gap: 5px;
    }

    .quiz-counter {
        display: none;
    }

    .option {
        padding: 13px 13px;
        gap: 11px;
        font-size: 0.9rem;
    }

    .option-key {
        width: 28px;
        height: 28px;
    }

    .timer-row {
        margin-top: 16px;
    }

    .result-actions .btn {
        flex: 1 1 100%;
    }

    .save-row {
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}