:root {
    --black:     #0a0a0a;
    --dark:      #111111;
    --dark-2:    #1a1a1a;
    --dark-3:    #242424;
    --grey:      #555555;
    --grey-2:    #888888;
    --light:     #e8e8e8;
    --white:     #f5f5f5;
    --blue:      #2c74c7;
    --blue-2:    #1a5ca8;
    --blue-glow: rgba(44, 116, 199, 0.15);
    --accent:    #4a9eff;
    --gold:      #d4a017;
    --silver:    #a0a0b0;
    --bronze:    #cd7f32;
    --font-display: 'Barlow Condensed', sans-serif;
    --font-body:    'Barlow', sans-serif;
    --radius: 4px;
    --transition: 0.2s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--black); color: var(--white); font-family: var(--font-body); font-size: 16px; line-height: 1.6; min-height: 100vh; display: flex; flex-direction: column; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
main { flex: 1; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(10,10,10,0.95); backdrop-filter: blur(10px); border-bottom: 1px solid var(--dark-3); }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; height: 64px; display: flex; align-items: center; gap: 3rem; }
.nav-logo { font-family: var(--font-display); font-size: 1.6rem; font-weight: 900; letter-spacing: 0.05em; text-transform: uppercase; }
.logo-chess { color: var(--white); }
.logo-run { color: var(--blue); }
.nav-links { display: flex; gap: 0.25rem; list-style: none; flex: 1; }
.nav-link { padding: 0.4rem 0.9rem; font-family: var(--font-display); font-size: 0.95rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--grey-2); border-radius: var(--radius); transition: color var(--transition), background var(--transition); }
.nav-link:hover { color: var(--white); background: var(--dark-3); }
.nav-link.active { color: var(--accent); background: var(--dark-3); }
.nav-admin { font-family: var(--font-display); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--grey); padding: 0.35rem 0.8rem; border: 1px solid var(--dark-3); border-radius: var(--radius); transition: all var(--transition); }
.nav-admin:hover { color: var(--white); border-color: var(--grey); }

/* Hero */
.hero { position: relative; min-height: 85vh; display: flex; align-items: flex-end; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: linear-gradient(to right, var(--black) 0%, var(--black) 30%, transparent 65%), linear-gradient(to top, var(--black) 0%, transparent 40%); z-index: 1; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: grayscale(40%) contrast(1.1); opacity: 0.55; }
.hero-content { position: relative; z-index: 2; max-width: 1200px; margin: 0 auto; padding: 0 2rem 5rem; width: 100%; }
.hero-tag { display: inline-block; font-family: var(--font-display); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent); border: 1px solid var(--blue); padding: 0.3rem 0.8rem; margin-bottom: 1.5rem; border-radius: 2px; }
.hero-title { font-family: var(--font-display); font-size: clamp(3.5rem, 8vw, 7rem); font-weight: 900; line-height: 0.9; letter-spacing: -0.01em; text-transform: uppercase; margin-bottom: 1.5rem; }
.hero-title .accent { color: var(--blue); }
.hero-subtitle { font-size: 1.1rem; color: var(--grey-2); max-width: 480px; margin-bottom: 2.5rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--font-display); font-size: 0.9rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.75rem 1.75rem; border-radius: var(--radius); transition: all var(--transition); cursor: pointer; border: none; }
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover { background: var(--accent); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--white); border: 1px solid var(--grey); }
.btn-outline:hover { border-color: var(--white); transform: translateY(-1px); }

/* Stats bar */
.stats-bar { background: var(--dark-2); border-top: 1px solid var(--dark-3); border-bottom: 1px solid var(--dark-3); }
.stats-bar-inner { max-width: 1200px; margin: 0 auto; padding: 0 2rem; display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item { padding: 1.75rem 1rem; text-align: center; border-right: 1px solid var(--dark-3); }
.stat-item:last-child { border-right: none; }
.stat-number { font-family: var(--font-display); font-size: 2.5rem; font-weight: 900; color: var(--white); line-height: 1; }
.stat-label { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--grey-2); margin-top: 0.25rem; }

/* Sections */
.section { max-width: 1200px; margin: 0 auto; padding: 5rem 2rem; }
.section-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 2.5rem; border-bottom: 1px solid var(--dark-3); padding-bottom: 1rem; }
.section-title { font-family: var(--font-display); font-size: 1.8rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.05em; }
.section-title span { color: var(--blue); }
.section-link { font-family: var(--font-display); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); transition: opacity var(--transition); }
.section-link:hover { opacity: 0.7; }

/* Ranking table */
.ranking-table { width: 100%; border-collapse: collapse; }
.ranking-table th { font-family: var(--font-display); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--grey-2); text-align: left; padding: 0.6rem 1rem; border-bottom: 1px solid var(--dark-3); }
.ranking-table th.right, .ranking-table td.right { text-align: right; }
.ranking-table th.center, .ranking-table td.center { text-align: center; }
.ranking-table td { padding: 0.9rem 1rem; border-bottom: 1px solid var(--dark-2); vertical-align: middle; }
.ranking-table tr:hover td { background: var(--dark-2); }
.ranking-table tr:last-child td { border-bottom: none; }
.rank-num { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--grey-2); }
.rank-num.gold { color: var(--gold); }
.rank-num.silver { color: var(--silver); }
.rank-num.bronze { color: var(--bronze); }
.player-name { font-weight: 600; font-size: 0.95rem; }
.player-name a:hover { color: var(--accent); }
.player-title-badge { font-family: var(--font-display); font-size: 0.7rem; font-weight: 700; color: var(--blue); background: var(--blue-glow); padding: 0.1rem 0.4rem; border-radius: 2px; margin-right: 0.5rem; letter-spacing: 0.05em; }
.cr-elo { font-family: var(--font-display); font-size: 1.1rem; font-weight: 800; color: var(--white); }
.elo-change { font-family: var(--font-display); font-size: 0.85rem; font-weight: 700; }
.elo-change.pos { color: #4caf50; }
.elo-change.neg { color: #f44336; }
.elo-change.neu { color: var(--grey-2); }

/* Tournament cards */
.tournament-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.5rem; }
.tournament-card { background: var(--dark-2); border: 1px solid var(--dark-3); border-radius: var(--radius); padding: 1.5rem; transition: all var(--transition); position: relative; overflow: hidden; display: block; }
.tournament-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--blue); transform: scaleX(0); transform-origin: left; transition: transform var(--transition); }
.tournament-card:hover { border-color: var(--grey); transform: translateY(-2px); }
.tournament-card:hover::before { transform: scaleX(1); }
.tournament-date { font-family: var(--font-display); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.6rem; }
.tournament-name { font-family: var(--font-display); font-size: 1.2rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 0.4rem; transition: color var(--transition); }
.tournament-card:hover .tournament-name { color: var(--accent); }
.tournament-location { font-size: 0.85rem; color: var(--grey-2); margin-bottom: 1rem; }
.tournament-meta { display: flex; gap: 1.5rem; font-size: 0.8rem; color: var(--grey-2); padding-top: 1rem; border-top: 1px solid var(--dark-3); }
.tournament-meta span { font-weight: 600; color: var(--white); }
.tournament-status { display: inline-block; font-family: var(--font-display); font-size: 0.65rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; padding: 0.2rem 0.6rem; border-radius: 2px; margin-bottom: 0.8rem; }
.status-finalized { background: rgba(76,175,80,0.15); color: #4caf50; }
.status-imported { background: rgba(44,116,199,0.15); color: var(--accent); }
.status-draft { background: var(--dark-3); color: var(--grey-2); }

/* Page header */
.page-header { background: var(--dark-2); border-bottom: 1px solid var(--dark-3); padding: 3rem 0 2.5rem; }
.page-header-inner { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.page-title { font-family: var(--font-display); font-size: 2.5rem; font-weight: 900; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.25rem; }
.page-subtitle { color: var(--grey-2); font-size: 0.9rem; }

/* Filters */
.filters { display: flex; gap: 1rem; margin-bottom: 2rem; flex-wrap: wrap; align-items: center; }
.search-input { background: var(--dark-2); border: 1px solid var(--dark-3); color: var(--white); padding: 0.6rem 1rem; border-radius: var(--radius); font-family: var(--font-body); font-size: 0.9rem; width: 280px; transition: border-color var(--transition); }
.search-input:focus { outline: none; border-color: var(--blue); }
.search-input::placeholder { color: var(--grey); }

/* Profile */
.profile-header { background: var(--dark-2); border-bottom: 1px solid var(--dark-3); padding: 3rem 0; }
.profile-header-inner { max-width: 1200px; margin: 0 auto; padding: 0 2rem; display: flex; gap: 3rem; align-items: center; }
.profile-avatar { width: 100px; height: 100px; background: var(--dark-3); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 2.5rem; font-weight: 900; color: var(--blue); flex-shrink: 0; border: 2px solid var(--dark-3); }
.profile-name { font-family: var(--font-display); font-size: 3rem; font-weight: 900; text-transform: uppercase; letter-spacing: 0.02em; line-height: 1; margin-bottom: 0.5rem; }
.profile-elo-big { font-family: var(--font-display); font-size: 4rem; font-weight: 900; color: var(--accent); line-height: 1; }
.profile-info { display: flex; gap: 2rem; flex-wrap: wrap; margin-top: 1.5rem; }
.profile-info-item { font-size: 0.8rem; color: var(--grey-2); font-weight: 500; }
.profile-info-item strong { display: block; font-family: var(--font-display); font-size: 1.3rem; font-weight: 800; color: var(--white); line-height: 1.2; }

/* Game results */
.result-badge { display: inline-block; font-family: var(--font-display); font-size: 0.8rem; font-weight: 800; padding: 0.2rem 0.6rem; border-radius: 2px; }
.result-w { background: rgba(76,175,80,0.15); color: #4caf50; }
.result-d { background: var(--dark-3); color: var(--grey-2); }
.result-l { background: rgba(244,67,54,0.15); color: #f44336; }

/* Footer */
.site-footer { background: var(--dark-2); border-top: 1px solid var(--dark-3); margin-top: auto; }
.footer-container { max-width: 1200px; margin: 0 auto; padding: 3rem 2rem; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; align-items: start; }
.footer-brand .logo-chess, .footer-brand .logo-run { font-family: var(--font-display); font-size: 1.4rem; font-weight: 900; }
.footer-brand p { color: var(--grey-2); font-size: 0.85rem; margin-top: 0.5rem; font-style: italic; }
.footer-links { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-links a { font-size: 0.85rem; color: var(--grey-2); transition: color var(--transition); }
.footer-links a:hover { color: var(--white); }
.footer-copy { font-size: 0.75rem; color: var(--grey); text-align: right; align-self: end; }

/* Responsive */
@media (max-width: 768px) {
    .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
    .footer-container { grid-template-columns: 1fr; gap: 2rem; }
    .footer-copy { text-align: left; }
    .hero-title { font-size: 3rem; }
    .profile-header-inner { flex-direction: column; gap: 1.5rem; }
    .nav-links { display: none; }
}

/* ---- Mobile hamburger menu ---- */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 0.4rem;
    background: none;
    border: none;
}
.nav-hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all var(--transition);
    border-radius: 2px;
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 768px) {
    .nav-hamburger { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(10,10,10,0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 1rem;
        border-bottom: 1px solid var(--dark-3);
        gap: 0.25rem;
        z-index: 99;
    }
    .nav-links.open { display: flex; }
    .nav-link { padding: 0.75rem 1rem; font-size: 1rem; }
    .nav-container { position: relative; flex-wrap: wrap; }
    .hero-title { font-size: 2.5rem; }
    .section { padding: 3rem 1rem; }
    .profile-header-inner { flex-direction: column; gap: 1.5rem; }
    .footer-container { grid-template-columns: 1fr; gap: 2rem; }
    .footer-copy { text-align: left; }
    .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
}