:root {
            --bg: #050505;
            --surface: #0a0a0a;
            --surface-hover: #111;
            --nav-h: 72px;
            --mobile-nav-h: 108px;
            --mobile-cta-h: 58px;

            --gold: #D4AF37;
            --gold-dim: #8a702a;
            --gold-glow: rgba(212, 175, 55, 0.25);

            --silver: #E0E0E0;
            --silver-dim: #888;
            --silver-glow: rgba(224, 224, 224, 0.15);

            --bronze: #cd7f32;
            --bronze-dim: #8b5a2b;
            --bronze-glow: rgba(205, 127, 50, 0.25);
            --accent-red: #cc0000;
            --accent-red-glow: rgba(204, 0, 0, 0.4);

            --text: #ffffff;
            --text-dim: #d0d0d0;
            --ui-label: #d4d4d4;
            --ui-caption: #d8d8d8;
            --border: #222;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }

        body {
            background-color: var(--bg);
            background-image: linear-gradient(180deg, #000 0%, #0a0a0a 100%);
            color: var(--text);
            font-family: 'Source Sans 3', 'Segoe UI', system-ui, -apple-system, sans-serif;
            min-height: 100vh;
            line-height: 1.6;
            display: flex;
            flex-direction: column;
        }

.page-header {
            padding: 48px 20px 36px;
            text-align: center;
            position: relative;
            box-shadow: inset 0 0 80px rgba(212, 175, 55, 0.04);
        }

        .page-header::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse 80% 60% at 50% 30%, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-header > * { position: relative; z-index: 1; }

        .eyebrow {
            display: inline-block;
            font-family: 'Roboto Mono', monospace;
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 3px;
            color: var(--ui-caption);
            margin-bottom: 14px;
        }

        .page-header h1 {
            font-family: 'Oswald', sans-serif;
            font-size: clamp(2.5rem, 6vw, 4.5rem);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 3px;
            line-height: 1;
            margin-bottom: 14px;
        }

        .hero-gold-gradient {
            background: linear-gradient(135deg, var(--gold) 0%, var(--gold) 82%, #c9a848 96%, var(--bronze) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .page-lead {
            max-width: 640px;
            margin: 0 auto;
            font-size: 1.2rem;
            color: var(--text-dim);
            font-weight: 500;
        }

        .container {
            max-width: 1040px;
            margin: 0 auto;
            padding: 0 20px 80px;
            flex-grow: 1;
            width: 100%;
        }

        /* Challenges page hero */
        .ch-page {
            padding-top: 12px;
        }

        .ch-hero {
            text-align: center;
            padding: 40px 16px 48px;
            margin-bottom: 16px;
            position: relative;
        }

        .ch-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse 80% 65% at 50% 15%, rgba(212, 175, 55, 0.14) 0%, transparent 70%);
            pointer-events: none;
        }

        .ch-hero > * { position: relative; z-index: 1; }

        .ch-hero__month {
            display: block;
            font-family: 'Oswald', sans-serif;
            font-size: clamp(3rem, 10vw, 5.5rem);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 3px;
            line-height: 1;
            margin-bottom: 12px;
            background: linear-gradient(135deg, var(--gold) 0%, var(--bronze) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .ch-hero h1 {
            font-family: 'Oswald', sans-serif;
            font-size: clamp(2.8rem, 9vw, 5.2rem);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            line-height: 0.95;
            margin-bottom: 16px;
        }

        .ch-hero__lead {
            max-width: 32ch;
            margin: 0 auto 26px;
            font-size: clamp(1.1rem, 2.5vw, 1.35rem);
            color: var(--text-dim);
            line-height: 1.45;
        }

        .ch-hero__cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--gold) 0%, var(--bronze) 100%);
            color: #000;
            font-family: 'Oswald', sans-serif;
            font-size: 1rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            padding: 14px 28px;
            border-radius: 10px;
            text-decoration: none;
            border: 1px solid rgba(205, 127, 50, 0.5);
            transition: box-shadow 0.2s ease, transform 0.2s ease;
        }

        .ch-hero__cta:hover {
            box-shadow: 0 0 22px var(--gold-glow);
            transform: translateY(-1px);
        }

        .ch-live-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 28px;
        }

        .ch-card {
            background: linear-gradient(165deg, rgba(212, 175, 55, 0.07) 0%, var(--surface) 42%);
            border: 1px solid rgba(212, 175, 55, 0.28);
            border-radius: 14px;
            padding: 22px 22px 18px;
            display: flex;
            flex-direction: column;
            min-height: 100%;
        }

        .ch-card__head {
            margin-bottom: 14px;
        }

        .ch-card__title {
            font-family: 'Oswald', sans-serif;
            font-size: clamp(1.35rem, 3vw, 1.75rem);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            line-height: 1.1;
            margin: 8px 0 8px;
            color: var(--text);
        }

        .ch-card__rule {
            font-size: 0.98rem;
            color: var(--gold);
            font-weight: 600;
            margin: 0 0 6px;
            line-height: 1.35;
        }

        .ch-card__meta {
            font-family: 'Roboto Mono', monospace;
            font-size: 0.68rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--ui-caption);
            margin: 0;
        }

        .ch-podium {
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
        }

        .ch-podium__item {
            margin-bottom: 6px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.02);
        }

        .ch-podium__item--you {
            outline: 1px solid rgba(34, 197, 94, 0.35);
            background: rgba(34, 197, 94, 0.05);
        }

        .ch-athlete {
            border-radius: 8px;
        }

        .ch-athlete summary {
            list-style: none;
            cursor: pointer;
        }

        .ch-athlete summary::-webkit-details-marker { display: none; }

        .ch-podium__row {
            display: grid;
            grid-template-columns: 2.4rem minmax(0, 1fr) auto 1.4rem;
            gap: 8px;
            align-items: center;
            padding: 10px 12px 10px 9px;
            font-size: 0.95rem;
            color: var(--text-dim);
            border-left: 3px solid transparent;
            border-radius: 8px;
            transition: background 0.15s ease, border-color 0.15s ease;
        }

        .ch-podium__chevron {
            color: var(--ui-caption);
            font-size: 0.7rem;
            text-align: center;
            transition: transform 0.15s ease;
        }

        .ch-athlete[open] .ch-podium__chevron { transform: rotate(180deg); }

        .ch-podium__main {
            min-width: 0;
        }

        .ch-podium__row--podium:hover {
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.02) 55%);
        }

        .ch-podium__row--rank-1 {
            border-left-color: var(--gold);
            background: linear-gradient(90deg, rgba(212, 175, 55, 0.1) 0%, transparent 62%);
        }

        .ch-podium__row--rank-2 {
            border-left-color: #c0c0c0;
            background: linear-gradient(90deg, rgba(192, 192, 192, 0.07) 0%, transparent 62%);
        }

        .ch-podium__row--rank-3 {
            border-left-color: var(--bronze);
            background: linear-gradient(90deg, rgba(205, 127, 50, 0.08) 0%, transparent 62%);
            margin-bottom: 2px;
        }

        .ch-podium__rank {
            font-family: 'Oswald', sans-serif;
            font-size: 1.15rem;
            color: #666;
            text-align: center;
            font-variant-numeric: tabular-nums;
        }

        .ch-podium__rank.rank-1 {
            color: var(--gold);
            font-size: 1.35rem;
        }

        .ch-podium__rank.rank-2 {
            color: #c0c0c0;
            font-size: 1.35rem;
        }

        .ch-podium__rank.rank-3 {
            color: var(--bronze);
            font-size: 1.35rem;
        }

        .ch-podium__name {
            display: block;
            font-weight: 600;
            color: var(--text);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .ch-podium__row--rank-1 .ch-podium__name { color: #f2f2f2; }
        .ch-podium__row--rank-2 .ch-podium__name { color: #e8e8e8; }
        .ch-podium__row--rank-3 .ch-podium__name { color: #e0e0e0; }

        .ch-podium__loc {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            color: var(--ui-caption);
            margin-top: 3px;
            min-width: 0;
        }

        .ch-podium__flag {
            display: inline-flex;
            align-items: center;
            flex-shrink: 0;
            filter: grayscale(0.15);
        }

        .ch-podium__flag .emoji-flag {
            display: block;
            width: 20px;
            height: 14px;
            object-fit: cover;
            border-radius: 1px;
        }

        .ch-podium__city {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .ch-athlete__panel {
            padding: 4px 12px 12px 3.4rem;
            font-size: 0.85rem;
            color: var(--text-dim);
            line-height: 1.45;
        }

        .ch-athlete__facts {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px 14px;
            margin: 0 0 10px;
            padding: 10px 12px;
            background: rgba(0, 0, 0, 0.28);
            border: 1px solid var(--border);
            border-radius: 8px;
            list-style: none;
        }

        .ch-athlete__fact {
            margin: 0;
            min-width: 0;
        }

        .ch-athlete__fact dt {
            font-family: 'Roboto Mono', monospace;
            font-size: 0.62rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: var(--ui-caption);
            margin-bottom: 3px;
        }

        .ch-athlete__fact dd {
            margin: 0;
            font-size: 0.92rem;
            color: var(--text);
            font-weight: 600;
        }

        .ch-athlete__fact:first-child dd {
            color: var(--text-dim);
            font-weight: 500;
        }

        .ch-athlete__fact--grip dt {
            color: var(--gold);
        }

        .ch-athlete__fact--grip dd {
            color: var(--gold);
            font-family: 'Oswald', sans-serif;
            font-size: 1.05rem;
        }

        .ch-athlete__watch {
            display: inline-block;
            color: var(--gold);
            font-weight: 600;
            text-decoration: none;
            font-size: 0.82rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
        }

        .ch-athlete__watch:hover { text-decoration: underline; }

        @media (max-width: 520px) {
            .ch-athlete__facts { grid-template-columns: 1fr; }
            .ch-athlete__panel { padding-left: 12px; }
        }

        .ch-podium__val {
            font-family: 'Oswald', sans-serif;
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--gold);
            letter-spacing: 0.5px;
            font-variant-numeric: tabular-nums;
            white-space: nowrap;
        }

        .ch-podium__row--rank-2 .ch-podium__val { color: #d8d8d8; }
        .ch-podium__row--rank-3 .ch-podium__val { color: var(--bronze); }

        .ch-athlete:hover .ch-podium__row,
        .ch-athlete[open] .ch-podium__row {
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 60%);
        }

        .ch-podium__empty {
            padding: 28px 12px;
            text-align: center;
            color: var(--ui-caption);
            font-size: 0.92rem;
            border: 1px dashed var(--border);
            border-radius: 8px;
        }

        .ch-podium__empty a {
            color: var(--gold);
            font-weight: 600;
            text-decoration: none;
        }

        .ch-podium__empty a:hover { text-decoration: underline; }

        .ch-expand-btn {
            display: block;
            width: 100%;
            margin-top: 8px;
            padding: 10px 12px;
            border: 1px solid rgba(212, 175, 55, 0.35);
            border-radius: 8px;
            background: transparent;
            color: var(--gold);
            font-family: 'Rajdhani', sans-serif;
            font-weight: 700;
            font-size: 0.88rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            cursor: pointer;
        }

        .ch-expand-btn:hover { background: rgba(212, 175, 55, 0.08); }

        .ch-card--highlight {
            box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.55), 0 0 28px rgba(212, 175, 55, 0.15);
        }

        .ch-fold {
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 16px;
            background: var(--surface);
            overflow: hidden;
        }

        .ch-fold summary {
            cursor: pointer;
            padding: 16px 20px;
            font-family: 'Oswald', sans-serif;
            font-size: 1rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--ui-label);
            list-style: none;
        }

        .ch-fold summary::-webkit-details-marker { display: none; }

        .ch-fold summary::after {
            content: '+';
            float: right;
            color: var(--gold);
            font-weight: 700;
        }

        .ch-fold[open] summary::after { content: '−'; }

        .ch-fold__body {
            padding: 0 20px 18px;
            color: var(--text-dim);
            font-size: 0.95rem;
            line-height: 1.55;
        }

        .ch-fold__body ul {
            margin: 0;
            padding-left: 18px;
        }

        .ch-fold__body li { margin-bottom: 8px; }

        .ch-fold__body a { color: var(--gold); }

        .ch-archive-title {
            font-family: 'Oswald', sans-serif;
            font-size: 1.1rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--ui-label);
            margin-bottom: 12px;
        }

        .status-pill {
            display: inline-block;
            background: transparent;
            border: 1px solid var(--gold-dim);
            color: var(--gold);
            padding: 5px 16px;
            border-radius: 20px;
            font-family: 'Roboto Mono', monospace;
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 16px;
        }

        .status-pill.live {
            border-color: var(--accent-red);
            color: var(--accent-red);
            box-shadow: 0 0 12px var(--accent-red-glow);
        }

        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 28px 32px;
            margin-bottom: 24px;
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
        }

        .card-highlight {
            border-color: rgba(212, 175, 55, 0.35);
            background: linear-gradient(180deg, rgba(212, 175, 55, 0.06) 0%, var(--surface) 40%);
        }

        .current-challenge {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 28px;
            align-items: center;
        }

        .challenge-title {
            font-family: 'Oswald', sans-serif;
            font-size: 2rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
        }

        .challenge-criteria {
            font-size: 1.15rem;
            color: var(--text-dim);
            margin-bottom: 16px;
        }

        .challenge-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }

        .meta-tag {
            font-family: 'Roboto Mono', monospace;
            font-size: 0.72rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 6px 12px;
            border-radius: 999px;
            border: 1px solid var(--border);
            color: var(--ui-caption);
            background: rgba(255,255,255,0.03);
        }

        .stat-block {
            text-align: right;
            min-width: 160px;
        }

        .stat-value {
            font-family: 'Oswald', sans-serif;
            font-size: 3rem;
            font-weight: 700;
            color: var(--gold);
            line-height: 1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--ui-caption);
            margin-top: 4px;
        }

        .btn-primary {
            display: inline-block;
            margin-top: 16px;
            background: linear-gradient(135deg, var(--gold) 0%, var(--bronze) 100%);
            color: #000;
            font-family: 'Source Sans 3', 'Segoe UI', system-ui, -apple-system, sans-serif;
            font-size: 1rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 12px 24px;
            border-radius: 8px;
            text-decoration: none;
            border: 1px solid rgba(205, 127, 50, 0.5);
            transition: all 0.2s ease;
        }

        .btn-primary:hover {
            box-shadow: 0 0 14px var(--gold-glow);
        }

        .section-title {
            font-family: 'Oswald', sans-serif;
            font-size: 1.6rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-title::before {
            content: '';
            width: 4px;
            height: 22px;
            background: var(--gold);
            flex-shrink: 0;
        }

        .how-list {
            list-style: none;
            counter-reset: steps;
        }

        .how-list li {
            counter-increment: steps;
            position: relative;
            padding-left: 42px;
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: var(--text-dim);
        }

        .how-list li::before {
            content: counter(steps);
            position: absolute;
            left: 0;
            top: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(212, 175, 55, 0.12);
            border: 1px solid rgba(212, 175, 55, 0.35);
            color: var(--gold);
            font-family: 'Oswald', sans-serif;
            font-size: 0.9rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .how-list li strong {
            color: var(--text);
            font-weight: 600;
        }

        .note-box {
            background: rgba(212, 175, 55, 0.05);
            border: 1px solid var(--gold-dim);
            padding: 18px 20px;
            border-radius: 6px;
            font-family: 'Roboto Mono', monospace;
            font-size: 0.82rem;
            color: var(--gold);
            margin-top: 20px;
            line-height: 1.7;
        }

        .note-box a {
            color: var(--gold);
            text-decoration: underline;
        }

        .incentive-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 8px;
        }

        .incentive-card {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 18px;
            background: rgba(255,255,255,0.02);
        }

        .incentive-card.featured {
            border-color: rgba(212, 175, 55, 0.4);
            background: linear-gradient(180deg, rgba(212, 175, 55, 0.08) 0%, rgba(255,255,255,0.02) 100%);
        }

        .incentive-rank {
            font-family: 'Oswald', sans-serif;
            font-size: 1.1rem;
            color: var(--gold);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .incentive-card p {
            font-size: 0.98rem;
            color: var(--text-dim);
            margin: 0;
        }

        .standings-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .standings-list li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            font-size: 1.05rem;
            color: var(--text-dim);
        }

        .standings-list li strong { color: var(--text); }

        .standings-rank {
            font-family: 'Roboto Mono', monospace;
            color: var(--gold);
            min-width: 2rem;
        }

        .standings-count {
            font-family: 'Roboto Mono', monospace;
            color: var(--ui-caption);
        }

        .status-pill.upcoming {
            border-color: var(--gold-dim);
            color: var(--gold);
        }

        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .archive-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .archive-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 1rem;
        }

        .archive-table th,
        .archive-table td {
            padding: 14px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }

        .archive-table th {
            font-family: 'Oswald', sans-serif;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--ui-label);
            background: rgba(255,255,255,0.02);
        }

        .archive-table td {
            color: var(--text-dim);
        }

        .archive-table tr:hover td {
            background: rgba(255,255,255,0.02);
        }

        .archive-table .challenge-name {
            color: var(--text);
            font-weight: 600;
        }

        .archive-table .placeholder {
            font-family: 'Roboto Mono', monospace;
            color: var(--silver-dim);
        }

        footer {
            margin-top: auto;
            padding: 40px 20px 60px;
            text-align: center;
            border-top: 1px solid var(--border);
            background: #0a0a0a;
        }

        .footer-logo {
            display: block;
            height: 72px;
            width: auto;
            max-width: 280px;
            margin: 0 auto 20px;
            object-fit: contain;
            }

        .footer-copy {
            color: #b0b0b0;
            font-family: 'Roboto Mono', monospace;
            font-size: 0.8rem;
        }

        .footer-links {
            margin-top: 12px;
            font-size: 0.85rem;
        }

        .footer-links a {
            color: #b5b5b5;
            text-decoration: none;
            margin: 0 10px;
        }

        .footer-links a:hover { color: var(--gold); }

        @media (max-width: 768px) {
            .ch-page { padding-top: 8px; }
            .ch-hero { padding: 28px 12px 36px; }
            .ch-hero__month { margin-bottom: 10px; }
            .ch-live-grid { grid-template-columns: 1fr; }
            .current-challenge { grid-template-columns: 1fr; }
            .stat-block { text-align: left; }
            .grid-2 { grid-template-columns: 1fr; }
            .incentive-grid { grid-template-columns: 1fr; }
            .card { padding: 22px 20px; }
        }