/* DESIGN TOKENS (LIGHT THEME) */
:root {
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(148, 163, 184, 0.22);
    --card-border-focus: rgba(59, 130, 246, 0.5);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    --purple: #7c3aed;
    --purple-glow: rgba(124, 58, 237, 0.15);
    --cyan: #0284c7;
    --cyan-glow: rgba(2, 132, 199, 0.15);
    --gold: #d97706;
    --gold-glow: rgba(217, 119, 6, 0.15);
    --green: #16a34a;
    --green-glow: rgba(22, 163, 74, 0.15);
    --red: #dc2626;
    --red-glow: rgba(220, 38, 38, 0.15);
    
    --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* GENERAL RESETS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    padding-bottom: 90px;
    line-height: 1.5;
    padding-top: 52px;
}

/* MINI TOP NAV */
.mini-topnav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 900;
    height: 50px;
    background: rgba(2, 6, 23, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    gap: 12px;
}

.mini-topnav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    flex-shrink: 0;
}

.mini-topnav-logo {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

.mini-topnav-name {
    font-size: 0.75rem;
    font-weight: 800;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mini-topnav-title {
    font-size: 0.78rem;
    font-weight: 700;
    color: rgba(255,255,255,0.7);
    display: flex;
    align-items: center;
    gap: 6px;
}


/* BACKGROUNDS & GLOW EFFECTS */
.stadium-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: radial-gradient(circle at 50% 0%, rgba(224, 231, 255, 0.5), rgba(248, 250, 252, 0.9));
    z-index: -2;
    pointer-events: none;
}

.glow-effect {
    position: fixed;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    filter: blur(150px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.15;
}

.glow-purple {
    top: -10%;
    right: -100px;
    background-color: var(--purple);
}

.glow-cyan {
    bottom: -10%;
    left: -100px;
    background-color: var(--cyan);
}

/* GLASSMORPHISM CARD COMMON STYLE */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(15, 23, 42, 0.04);
    transition: var(--transition-smooth);
}

.glass-card:hover {
    border-color: rgba(124, 58, 237, 0.3);
}

/* TEXT UTILITIES */
.text-gold { color: var(--gold); }
.text-cyan { color: var(--cyan); }
.text-purple { color: var(--purple); }
.text-green { color: var(--green); }
.text-danger { color: var(--red); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.hidden { display: none !important; }

/* BADGES */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-purple { background: rgba(124, 58, 237, 0.1); color: var(--purple); border: 1px solid rgba(124, 58, 237, 0.2); }
.badge-cyan { background: rgba(2, 132, 199, 0.1); color: var(--cyan); border: 1px solid rgba(2, 132, 199, 0.2); }
.badge-gold { background: rgba(217, 119, 6, 0.1); color: var(--gold); border: 1px solid rgba(217, 119, 6, 0.2); }
.badge-green { background: rgba(22, 163, 74, 0.1); color: var(--green); border: 1px solid rgba(22, 163, 74, 0.2); }
.badge-danger { background: rgba(220, 38, 38, 0.1); color: var(--red); border: 1px solid rgba(220, 38, 38, 0.2); }

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition-smooth);
}

.btn-primary { background: linear-gradient(135deg, var(--purple), #6366f1); color: white; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px var(--purple-glow); }

.btn-dark { background: #ffffff; color: var(--text-primary); border: 1px solid var(--card-border); }
.btn-dark:hover { background: var(--bg-secondary); }

.btn-icon { width: 42px; height: 42px; padding: 0; border-radius: 50%; }

/* APP WRAPPER */
.app-container {
    max-width: 1650px;
    margin: 0 auto;
    padding: 20px 15px;
}

/* STICKY HEADER */
.sticky-header-container {
    position: sticky;
    top: 0;
    z-index: 800;
    background: rgba(248, 250, 252, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    padding: 12px 20px;
    border-radius: 16px;
    margin-bottom: 25px;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.user-welcome {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.user-name {
    display: block;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.content-area {
    padding-bottom: 40px;
}

/* TAB NAVIGATION (BOTTOM ON MOBILE) */
.bottom-nav {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 30px);
    max-width: 480px;
    display: flex;
    justify-content: space-around;
    padding: 8px 12px;
    z-index: 900;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--card-border);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 20px;
    gap: 4px;
    transition: var(--transition-smooth);
}

.nav-item i {
    font-size: 1.2rem;
}

.nav-item span {
    font-size: 0.7rem;
    font-weight: 700;
}

.nav-item:hover, .nav-item.active {
    color: var(--purple);
}

.nav-item.active {
    background: rgba(124, 58, 237, 0.08);
}

/* SUB TABS BAR */
.sub-tabs-bar {
    display: flex;
    padding: 6px;
    gap: 8px;
    border-radius: 14px;
    margin-bottom: 25px;
    background: #ffffff;
    border: 1px solid var(--card-border);
}

.sub-tab-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 15px;
    border-radius: 10px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.sub-tab-btn:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.sub-tab-btn.active {
    background: var(--purple);
    color: white;
    box-shadow: 0 4px 12px var(--purple-glow);
}

/* MATCH CARDS */
.matches-list-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.match-card {
    background: #ffffff;
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: 0 4px 15px rgba(15, 23, 42, 0.02);
}

.match-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--bg-secondary);
    padding-bottom: 10px;
}

.match-lock-status {
    font-size: 0.78rem;
    font-weight: 600;
}

.match-vs-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    gap: 15px;
}

.match-team {
    flex: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.match-team.team-a {
    justify-content: flex-end;
    text-align: right;
}

.match-team.team-b {
    justify-content: flex-start;
    text-align: left;
}

.match-team-flag {
    width: 28px;
    height: 28px;
    object-fit: contain;
    flex-shrink: 0;
}

.match-team-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 130px;
}

.match-score-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    min-width: 80px;
}

.score-display {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.score-divider {
    color: var(--text-muted);
}

.vs-text {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--text-muted);
    background: var(--bg-secondary);
    padding: 4px 12px;
    border-radius: 20px;
}

.match-time-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
    text-align: center;
}

/* STANDINGS VIEW STYLING */
.standings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
    gap: 20px;
}

.group-standings-card {
    background: #ffffff;
    border-radius: 18px;
    padding: 15px;
}

.group-standings-card .card-header {
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--bg-secondary);
}

.group-standings-card h2 {
    font-size: 1rem;
    font-weight: 800;
    color: var(--text-primary);
}

.standings-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.standings-table th {
    padding: 8px;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    text-align: left;
}

.standings-table td {
    padding: 8px;
    border-bottom: 1px solid var(--bg-secondary);
    vertical-align: middle;
}

.standings-table tr:last-child td {
    border-bottom: none;
}

.team-name-cell {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    color: var(--text-primary);
}

.team-logo-small {
    width: 20px;
    height: 20px;
    object-fit: contain;
}

.table-pts-value {
    font-weight: 800;
    color: var(--gold);
}

.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.rank-1 { background: rgba(217, 119, 6, 0.1); color: var(--gold); }
.rank-2 { background: rgba(2, 132, 199, 0.1); color: var(--cyan); }
.rank-3 { background: rgba(100, 116, 139, 0.1); color: var(--text-muted); }

/* HORIZONTAL TREE BRACKET LAYOUT */
.bracket-container {
    width: 100%;
    margin-bottom: 35px;
}

.bracket-tree-wrapper {
    position: relative;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 15px 8px 30px 8px;
    min-height: 700px;
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 15px rgba(15, 23, 42, 0.01);
    -webkit-overflow-scrolling: touch;
}

.bracket-tree-inner {
    display: flex;
    gap: 8px;
    justify-content: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: top center;
}

.bracket-zoom-controls {
    display: flex;
    gap: 6px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: 10px;
    border: 1px solid var(--card-border);
}

.btn-zoom {
    background: #ffffff;
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.8rem;
    transition: var(--transition-smooth);
}

.btn-zoom:hover {
    background: var(--purple);
    color: #ffffff;
    border-color: var(--purple);
}

.bracket-column {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    min-width: 125px;
    gap: 10px;
    position: relative;
}

.bracket-column.center-column {
    min-width: 140px;
    justify-content: center;
    align-items: center;
    gap: 15px;
}

.trophy-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin: 10px 0;
}

.trophy-wrapper i {
    font-size: 3.5rem;
    color: var(--gold);
    filter: drop-shadow(0 4px 8px rgba(217, 119, 6, 0.3));
    margin-bottom: 10px;
    animation: pulse 2s infinite;
}

.trophy-wrapper .winner-label {
    font-size: 1rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--text-primary);
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* BRACKET MATCH BOX CARD */
.bracket-match-card {
    background: #ffffff;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 6px 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.02);
    transition: var(--transition-smooth);
    min-width: 125px;
}

.bracket-match-card:hover {
    border-color: var(--cyan);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
}

.bracket-match-time-header {
    font-size: 0.62rem;
    font-weight: 700;
    color: var(--purple);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-bottom: 4px;
    border-bottom: 1px solid var(--bg-secondary);
    padding-bottom: 2px;
}

.bracket-team-vertical-block {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 3px 0;
    gap: 6px;
}

.bracket-team-flag-name {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.bracket-team-logo-large {
    width: 22px;
    height: 22px;
    object-fit: contain;
}

.bracket-team-name-small {
    font-size: 0.62rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
    max-width: 80px;
    display: block;
}

.bracket-team-vertical-block.winner .bracket-team-name-small {
    color: var(--text-primary);
    font-weight: 800;
}

.bracket-team-score-right {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--text-secondary);
    min-width: 18px;
    text-align: right;
}

.bracket-team-vertical-block.winner .bracket-team-score-right {
    color: var(--gold);
}

.bracket-team-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 2px 0;
}

.bracket-team-info {
    display: flex;
    align-items: center;
    gap: 6px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    max-width: 180px;
}

.bracket-team-logo {
    width: 14px;
    height: 14px;
    object-fit: contain;
}

.bracket-team-score {
    font-weight: 800;
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-width: 12px;
    text-align: right;
}

.bracket-team-row.winner {
    color: var(--text-primary);
}

.bracket-team-row.winner .bracket-team-score {
    color: var(--gold);
}

.bracket-team-row.winner .team-display-name {
    font-weight: 800;
}

.bracket-match-meta {
    font-size: 0.65rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    border-top: 1px solid var(--bg-secondary);
    padding-top: 5px;
    margin-top: 2px;
}

.placeholder-slot {
    font-style: italic;
    color: var(--text-muted);
}

/* TOAST SYSTEM */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1010;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    min-width: 250px;
    background: #ffffff;
    border-left: 4px solid var(--purple);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(15, 23, 42, 0.08);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    animation: slide-in-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast.success { border-left-color: var(--green); }
.toast.error { border-left-color: var(--red); }

@keyframes slide-in-left {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

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

.animate-fade-in { animation: fade-in 0.4s forwards; }

/* RESPONSIVE */
@media (max-width: 768px) {
    
    .score-display {
        font-size: 1.5rem;
    }
    
    /* Edge-to-edge for mobile */
    .app-container {
        padding: 10px 0 !important;
    }
    
    .bracket-container {
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
    }
    
    .bracket-tree-wrapper {
        border-radius: 0 !important;
        border-left: none !important;
        border-right: none !important;
        padding: 15px 4px 30px 4px !important;
        width: 100% !important;
        max-width: 100vw !important;
    }
    
    .bracket-section-header {
        padding: 0 15px !important;
    }
    
    /* Fix flexbox center overflow clipping */
    .bracket-tree-inner {
        justify-content: flex-start !important;
    }
}

/* SCHEDULE ENHANCEMENTS */
.schedule-stage-header {
    margin: 25px 0 15px 0;
    padding-left: 12px;
    border-left: 4px solid var(--purple);
}

.schedule-stage-header h3 {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.schedule-group-subheader {
    margin: 16px 0 8px 0;
    background: var(--bg-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--card-border);
}

.schedule-group-subheader h4 {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--purple);
    margin: 0;
}

.match-played {
    opacity: 0.7;
    background: #f8fafc;
    border-color: rgba(15, 23, 42, 0.05);
}

.match-played:hover {
    border-color: var(--card-border);
}

/* SCHEDULE SUB-TABS */
.schedule-subtabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    padding: 4px;
    background: var(--bg-secondary);
    border-radius: 10px;
    border: 1px solid var(--card-border);
}

.schedule-subtab {
    flex: 1;
    background: transparent;
    border: none;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.schedule-subtab.active {
    background: #ffffff;
    color: var(--purple);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}

/* BRACKET HORIZONTAL ROW (cờ trái, tên phải) */
.bracket-team-row-h {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 3px 0;
    gap: 4px;
}

.bracket-flag-name-h {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 4px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.bracket-flag-s {
    width: 16px;
    height: 16px;
    object-fit: contain;
    flex-shrink: 0;
}

.bracket-name-s {
    font-size: 0.62rem;
    font-weight: 700;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 70px;
}

.bracket-team-row-h.winner .bracket-name-s {
    color: var(--text-primary);
    font-weight: 800;
}

.bracket-score-s {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--text-secondary);
    min-width: 16px;
    text-align: right;
    flex-shrink: 0;
}

.bracket-team-row-h.winner .bracket-score-s {
    color: var(--gold);
}