:root {
    --bg: #0a0e17;
    --bg-card: #12182a;
    --bg-card-hover: #161f35;
    --border: rgba(255, 255, 255, 0.08);
    --text: #e8ecf4;
    --text-muted: #8b95a8;
    --primary: #ff6d00;
    --primary-dark: #e65100;
    --accent: #ffd600;
    --corinthians: #1a1a1a;
    --error: #ff5252;
    --success: #ffb74d;
    --radius: 14px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --font: 'Outfit', system-ui, sans-serif;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 1rem; }

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
        "logo user"
        "nav nav";
    align-items: center;
    gap: 0.75rem 1rem;
    padding: 0.75rem 0;
}

.logo { grid-area: logo; min-width: 0; }
.nav {
    grid-area: nav;
    display: flex;
    gap: 0.35rem;
    width: 100%;
}
.user-bar { grid-area: user; }

.logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    color: var(--text);
}

.logo-icon {
    width: 44px;
    height: 44px;
    object-fit: contain;
    border-radius: 6px;
}

.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { font-size: 1.1rem; font-weight: 700; }
.logo-text small { font-size: 0.72rem; color: var(--text-muted); }

.nav-link {
    flex: 1;
    text-align: center;
    padding: 0.55rem 0.5rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-link.active { color: var(--primary); background: rgba(255, 109, 0, 0.12); }

.user-bar { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
.user-name { font-size: 0.8rem; color: var(--text-muted); max-width: 7rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.main { padding: 1.25rem 0 3rem; }

.footer {
    text-align: center;
    padding: 1.25rem 1rem;
    color: var(--text-muted);
    font-size: 0.78rem;
    border-top: 1px solid var(--border);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 10px;
    font-family: var(--font);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary { background: var(--primary); color: #000; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-accent { background: var(--accent); color: #000; }
.btn-accent:hover { filter: brightness(1.05); }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text); border-color: rgba(255,255,255,0.2); }
.btn-sm { padding: 0.4rem 0.85rem; font-size: 0.82rem; }
.btn-lg { padding: 0.85rem 1.75rem; font-size: 1rem; }
.btn-block { width: 100%; }

/* Alerts */
.alert {
    padding: 0.85rem 1.1rem;
    border-radius: 10px;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
}

.alert-success { background: rgba(255, 183, 77, 0.12); color: var(--success); border: 1px solid rgba(255, 183, 77, 0.25); }
.alert-error { background: rgba(255, 82, 82, 0.12); color: var(--error); border: 1px solid rgba(255, 82, 82, 0.25); }

/* Auth */
.auth-card {
    max-width: 420px;
    margin: 2rem auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.auth-header { text-align: center; margin-bottom: 1.75rem; }
.auth-header h1 { font-size: 1.5rem; margin-bottom: 0.4rem; }
.auth-header p { color: var(--text-muted); font-size: 0.9rem; }
.auth-badge {
    display: inline-block;
    background: rgba(255, 109, 0, 0.15);
    color: var(--primary);
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    margin-bottom: 0.85rem;
}
.auth-footer { text-align: center; margin-top: 1.25rem; font-size: 0.88rem; color: var(--text-muted); }
.auth-footer a { color: var(--primary); }

/* Forms */
.form { display: flex; flex-direction: column; gap: 1.1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }
.form-group small { font-size: 0.75rem; color: var(--text-muted); opacity: 0.8; }

input[type="text"],
input[type="password"],
input[type="number"] {
    padding: 0.7rem 0.9rem;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-family: var(--font);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 109, 0, 0.15);
}

.score-input {
    width: 4.5rem;
    text-align: center;
    font-weight: 700;
    font-size: 1.15rem;
    padding: 0.55rem 0.4rem;
}

/* Page */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.75rem;
    flex-wrap: wrap;
}

.page-header h1 { font-size: 1.75rem; font-weight: 800; }
.subtitle { color: var(--text-muted); font-size: 0.9rem; margin-top: 0.25rem; }

.points-badge {
    background: var(--bg-card);
    border: 1px solid rgba(255, 109, 0, 0.35);
    border-radius: 12px;
    padding: 0.65rem 1.1rem;
    text-align: center;
}

.points-label { display: block; font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.points-value { font-size: 1.75rem; font-weight: 800; color: var(--accent); }

/* Date picker */
.date-picker-wrap {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.date-nav {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--bg-card);
    color: var(--text);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s, color 0.2s, opacity 0.2s;
    padding: 0;
}

.date-nav:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.date-nav:disabled {
    opacity: 0.35;
    cursor: default;
}

.date-picker {
    position: relative;
    flex: 1;
    min-width: 0;
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 0.25rem 0 0.75rem;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

.date-picker::-webkit-scrollbar { display: none; }

.date-chip {
    flex-shrink: 0;
    padding: 0.55rem 1rem;
    border-radius: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 500;
    transition: all 0.2s;
    white-space: nowrap;
}

.date-chip:hover { border-color: rgba(255,255,255,0.15); color: var(--text); }
.date-chip.active { background: var(--primary); color: #000; border-color: var(--primary); font-weight: 700; }

/* Match cards */
.matches-list { display: flex; flex-direction: column; gap: 1rem; }

.match-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    transition: border-color 0.2s;
}

.match-card:hover { border-color: rgba(255,255,255,0.12); }
.match-card.locked { opacity: 0.85; }
.match-card.finished { border-left: 3px solid var(--primary); }

.match-meta {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.35rem;
}

.match-round, .match-group, .match-num {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    background: rgba(255,255,255,0.06);
    color: var(--text-muted);
}

.match-time { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 1rem; }

.match-countdown {
    color: var(--primary);
    font-weight: 600;
}

.match-teams {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1rem;
}

.team { display: flex; align-items: center; gap: 0.5rem; }
.team-right { flex-direction: row-reverse; text-align: right; }
.flag { font-size: 1.5rem; }
.team-name { font-weight: 600; font-size: 0.95rem; line-height: 1.3; }

.match-center { text-align: center; min-width: 0; }

.pred-form {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: nowrap;
    width: 100%;
}

.pred-form .btn-primary { min-height: 44px; padding-left: 1rem; padding-right: 1rem; }

.vs { color: var(--text-muted); font-weight: 700; }

.final-score {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent);
}

.pred-result {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

.pred-result.muted { font-style: italic; }

.pts {
    display: inline-block;
    padding: 0.1rem 0.45rem;
    border-radius: 6px;
    font-weight: 700;
    margin-left: 0.25rem;
}

.pts-9 { background: rgba(255,214,0,0.2); color: var(--accent); }
.pts-3 { background: rgba(255,109,0,0.2); color: var(--primary); }
.pts-0 { background: rgba(255,82,82,0.15); color: var(--error); }

.locked-msg { font-size: 0.85rem; color: var(--text-muted); }

.match-ground { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.85rem; opacity: 0.7; }

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
}

/* Ranking */
.rules-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.rules-card h3 { font-size: 0.95rem; margin-bottom: 0.5rem; }
.rules-card ul { padding-left: 1.25rem; color: var(--text-muted); font-size: 0.88rem; }
.rules-card li { margin-bottom: 0.25rem; }

.ranking-table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

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

.ranking-table th {
    background: rgba(0,0,0,0.3);
    padding: 0.85rem 1rem;
    text-align: left;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.ranking-table td { padding: 0.85rem 1rem; border-top: 1px solid var(--border); }
.ranking-table tr.top-1 { background: rgba(255,214,0,0.06); }
.ranking-table tr.top-2 { background: rgba(192,192,192,0.06); }
.ranking-table tr.top-3 { background: rgba(205,127,50,0.06); }

.ranking-table .pos { font-weight: 700; width: 3rem; text-align: center; }
.ranking-table .points { color: var(--accent); font-size: 1.05rem; }
.admin-tag {
    font-size: 0.65rem;
    background: rgba(255,214,0,0.2);
    color: var(--accent);
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    margin-left: 0.35rem;
    vertical-align: middle;
}

/* Admin */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.1rem;
    text-align: center;
}

.stat-num { display: block; font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 0.78rem; color: var(--text-muted); }

.calc-form {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.calc-form small { color: var(--text-muted); font-size: 0.82rem; }

.filter-tabs {
    display: flex;
    gap: 0.35rem;
    margin-bottom: 1rem;
}

.filter-tabs a {
    padding: 0.45rem 0.9rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.filter-tabs a.active { background: var(--primary); color: #000; border-color: var(--primary); font-weight: 600; }

.admin-list { display: flex; flex-direction: column; gap: 0.65rem; }

.admin-match {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.85rem 1rem;
}

.admin-match-info { display: flex; flex-direction: column; gap: 0.2rem; flex: 1; min-width: 200px; }
.match-teams-admin { font-weight: 600; font-size: 0.9rem; }
.pred-count { font-size: 0.75rem; color: var(--text-muted); }

.admin-score-form {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: nowrap;
}

.admin-score-form .btn { min-height: 44px; }

/* Desktop */
@media (min-width: 769px) {
    .container { padding: 0 1.25rem; }

    .date-nav {
        width: 2.25rem;
        height: 2.25rem;
    }

    .date-picker {
        scrollbar-width: thin;
        scrollbar-color: rgba(255, 109, 0, 0.45) transparent;
        padding-bottom: 0.5rem;
    }

    .date-picker::-webkit-scrollbar {
        display: block;
        height: 5px;
    }

    .date-picker::-webkit-scrollbar-thumb {
        background: rgba(255, 109, 0, 0.45);
        border-radius: 4px;
    }

    .header-inner {
        display: flex;
        flex-wrap: nowrap;
        gap: 1.5rem;
        padding: 0.85rem 0;
    }

    .logo { flex-shrink: 0; }
    .nav { flex: 1; justify-content: center; width: auto; }
    .nav-link { flex: 0 1 auto; padding: 0.45rem 0.9rem; }
    .user-name { max-width: none; font-size: 0.85rem; }

    .main { padding: 2rem 0 4rem; }

    .match-teams {
        grid-template-columns: 1fr auto 1fr;
    }

    .match-center { min-width: 180px; }
}

/* Mobile */
@media (max-width: 768px) {
    .container {
        padding-left: max(1.35rem, env(safe-area-inset-left));
        padding-right: max(1.35rem, env(safe-area-inset-right));
    }

    .header-inner {
        gap: 1rem 1.25rem;
        padding: 1rem 0.8rem 0.9rem;
    }

    .nav { gap: 0.5rem; }

    .nav-link { padding: 0.65rem 0.5rem; }

    .main { padding: 1.75rem 0.8rem 3.5rem; }

    .alert { margin-bottom: 1.5rem; }

    .page-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1.25rem;
        margin-bottom: 1.75rem;
    }

    .page-header h1 { font-size: 1.45rem; }
    .subtitle { margin-top: 0.45rem; line-height: 1.55; }

    .points-badge {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 1rem 1.15rem;
    }

    .points-label { margin: 0; }
    .points-value { font-size: 1.5rem; line-height: 1; }

    .date-picker-wrap {
        margin-bottom: 1.75rem;
    }

    .date-picker {
        padding-bottom: 0.85rem;
        gap: 0.65rem;
    }

    .date-nav {
        width: 1.85rem;
        height: 1.85rem;
        font-size: 1.1rem;
    }

    .matches-list { gap: 1.25rem; }

    .auth-card {
        margin: 1.5rem auto;
        padding: 2rem 1.5rem;
    }

    .match-card { padding: 1.25rem 1.15rem; }

    .match-meta {
        margin-bottom: 0.65rem;
        gap: 0.5rem;
    }

    .match-time { margin-bottom: 1.15rem; }

    .match-teams {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .team,
    .team-right {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: 0.75rem;
        text-align: left;
        padding: 0.85rem 1rem;
        background: rgba(0, 0, 0, 0.25);
        border-radius: 10px;
    }

    .team-right { flex-direction: row; }

    .team-name { font-size: 0.9rem; flex: 1; }

    .match-center {
        padding: 0.65rem 0;
    }

    .pred-form { gap: 0.75rem; }

    .pred-result { margin-top: 0.5rem; }

    .match-ground { margin-top: 1.15rem; }

    .score-input {
        width: 3.75rem;
        font-size: 1.2rem;
        min-height: 44px;
    }

    .pred-form .btn-primary { flex: 1; max-width: 7.5rem; }

    .calc-form {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        gap: 1rem;
        padding: 1.35rem 1.15rem;
    }

    .calc-form .btn { width: 100%; }

    .filter-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        scrollbar-width: none;
        gap: 0.5rem;
        padding-bottom: 0.5rem;
        margin-bottom: 1.25rem;
    }

    .filter-tabs::-webkit-scrollbar { display: none; }

    .filter-tabs a {
        flex-shrink: 0;
        white-space: nowrap;
        padding: 0.55rem 1rem;
    }

    .admin-stats { grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-bottom: 1.75rem; }
    .stat-card { padding: 1rem 0.65rem; }

    .admin-list { gap: 0.85rem; }

    .admin-match {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        padding: 1.15rem 1.15rem;
    }

    .admin-match-info { gap: 0.45rem; }

    .admin-score-form {
        width: 100%;
        justify-content: center;
        padding-top: 1rem;
        margin-top: 0.25rem;
        border-top: 1px solid var(--border);
    }

    .stat-num { font-size: 1.25rem; }
    .stat-label { font-size: 0.68rem; margin-top: 0.2rem; display: block; }

    .rules-card {
        padding: 1.25rem 1.15rem;
        margin-bottom: 1.75rem;
    }

    .ranking-table-wrap { margin-top: 0.25rem; }

    .ranking-table { font-size: 0.82rem; }
    .ranking-table th,
    .ranking-table td { padding: 0.75rem 0.65rem; }

    .ranking-table th:nth-child(4),
    .ranking-table th:nth-child(5),
    .ranking-table td:nth-child(4),
    .ranking-table td:nth-child(5) {
        display: none;
    }

    .footer {
        padding: 1.75rem max(1.35rem, env(safe-area-inset-right)) 2rem max(1.35rem, env(safe-area-inset-left));
    }

    .footer p { font-size: 0.72rem; line-height: 1.6; }

    .user-bar { gap: 0.65rem; }

    .user-bar .btn-ghost {
        padding: 0.5rem 0.75rem;
        font-size: 0.78rem;
    }
}