:root {
    /* Calendar Poster Palette */
    --emerald-green: #3c50ff; /* Electric Blue (Primary) */
    --hot-pink: #ff0060;       /* Neon Pink-Red (Accent) */
    --golden-yellow: #ffd000;  /* Vibrant Gold (Accent) */
    --cerulean-blue: #00bcd4;  /* Teal Blue */
    --coral-red: #ff3366;      /* Vibrant Coral */
    --cream: #fffbf2;          /* Light Cream */
    --black: #1a1a1a;          /* Ink Black */
    --white: #ffffff;          /* Pure White */
    
    /* Functional Colors */
    --bg-primary: #3c50ff;     /* Vibrant Electric Blue from Calendar */
    --bg-secondary: #fffae6;   /* Warm Gold-Cream wash from Calendar */
    --text-primary: #ffffff;   /* Page Light Text (high-contrast on blue/slate) */
    --text-secondary: #e2e8f0; /* Page Subtitle Muted Text */
    --text-card: #1a1a1a;      /* Ink Black Text inside cards */
    --text-card-muted: #4a5568;/* Muted Grey Text inside cards */
    --border-color: #1a1a1a;   /* Ink Contour Border */
    --banner-bg: #515688;      /* Deep Slate Blue Header Banner */
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Space Grotesk', sans-serif;
    
    /* UI Elements */
    --border-width: 3px;
    --border-width-thick: 5px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --shadow-sm: 4px 4px 0 var(--black);
    --shadow-md: 8px 8px 0 var(--black);
    --shadow-lg: 12px 12px 0 var(--black);
    
    /* Assets */
    --border-pattern: url('assets/border.png');
    --cloud-pattern: url('assets/clouds.png');
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(circle at 15% 20%, rgba(10, 20, 120, 0.18) 0%, transparent 60%),
        radial-gradient(circle at 85% 80%, rgba(10, 20, 120, 0.18) 0%, transparent 60%),
        radial-gradient(circle at 50% 30%, rgba(255, 220, 0, 0.1) 0%, transparent 70%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    padding-left: 50px;
    padding-right: 50px;
}

body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.08; /* Slightly more visible on electric blue */
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* ═══════════════════ DECORATIVE VIEWPORT SCROLL BORDERS ═══════════════════ */
.border-scroll-left, .border-scroll-right {
    position: fixed;
    top: 0;
    bottom: 0;
    width: 45px;
    background-image: var(--border-pattern);
    background-size: 100% auto;
    background-repeat: repeat-y;
    z-index: 1001; /* Above standard elements, below modals */
    pointer-events: none;
    box-shadow: 0 0 15px rgba(0,0,0,0.3);
}

.border-scroll-left {
    left: 0;
    border-right: var(--border-width) solid var(--border-color);
}

.border-scroll-right {
    right: 0;
    border-left: var(--border-width) solid var(--border-color);
    transform: scaleX(-1);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
}

/* ═══════════════════ COMPONENTS ═══════════════════ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: var(--white);
    color: var(--text-primary);
    padding: 12px 24px;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.btn:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 var(--border-color);
}

.btn:active {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 var(--border-color);
}

.btn-primary {
    background-color: var(--emerald-green);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--hot-pink);
}

.btn-outline {
    background-color: transparent;
}

.btn-outline:hover {
    background-color: var(--cerulean-blue);
    color: var(--white);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
    border-width: 2px;
    box-shadow: 2px 2px 0 var(--border-color);
}

.btn-sm:hover {
    box-shadow: 4px 4px 0 var(--border-color);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.25rem;
    border-width: 4px;
    box-shadow: var(--shadow-md);
}

.btn-lg:hover {
    box-shadow: 10px 10px 0 var(--border-color);
}

.btn-icon {
    height: 24px;
    width: auto;
}

.border-ornament {
    height: 40px;
    background-image: var(--border-pattern);
    background-repeat: repeat-x;
    background-size: auto 100%;
}

.border-ornament--top {
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* ═══════════════════ HEADER ═══════════════════ */

#site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    background-color: var(--banner-bg);
    border-bottom: var(--border-width) solid var(--border-color);
    position: sticky;
    top: 40px; /* Below top border */
    z-index: 999;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    height: 60px;
    filter: drop-shadow(2px 2px 0px var(--black));
    transition: transform 0.3s ease;
}

.logo-link:hover .logo-icon {
    transform: scale(1.1) rotate(5deg);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--coral-red);
    text-shadow: 1px 1px 0 var(--golden-yellow), 2px 2px 0 var(--black);
    line-height: 1;
}

.logo-subtitle {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#main-nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
}

#main-nav a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: 5px 0;
}

#main-nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: 0;
    left: 0;
    background-color: var(--hot-pink);
    transition: width 0.3s ease;
}

#main-nav a:hover::after, #main-nav a.active::after {
    width: 100%;
}

#main-nav a:hover {
    color: var(--emerald-green);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-score {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--golden-yellow);
    border: var(--border-width) solid var(--border-color);
    padding: 5px 15px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.score-label {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.score-value {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--coral-red);
}

/* ═══════════════════ HERO SECTION ═══════════════════ */

.hero {
    position: relative;
    min-height: calc(100vh - 150px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 5%;
    overflow: hidden;
}

.hero__clouds {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: var(--cloud-pattern);
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: 1;
}

.hero__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1400px;
    position: relative;
    z-index: 2;
    gap: 60px;
}

.hero__text {
    flex: 1;
    max-width: 600px;
}

.hero__eyebrow {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.hero__title {
    font-size: 5rem;
    line-height: 1;
    margin-bottom: 30px;
}

.hero__title--accent {
    color: var(--emerald-green);
    text-shadow: 3px 3px 0 var(--black), -2px -2px 0 var(--golden-yellow);
}

.hero__title--stroke {
    color: transparent;
    -webkit-text-stroke: 2px var(--black);
    text-shadow: 4px 4px 0 var(--hot-pink);
}

.hero__description {
    font-size: 1.25rem;
    margin-bottom: 40px;
    font-weight: 500;
}

.hero__cta {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
}

.hero__stats {
    display: flex;
    gap: 30px;
}

.stat-pill {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--cerulean-blue);
    text-shadow: 2px 2px 0 var(--black);
}

.stat-label {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero__image {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__image-frame {
    position: relative;
    background-color: var(--bg-primary);
    border: var(--border-width-thick) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-lg);
    background-image: radial-gradient(var(--golden-yellow) 2px, transparent 2px);
    background-size: 20px 20px;
}

.hero__image-frame::after {
    content: '';
    position: absolute;
    top: 10px; left: 10px; right: 10px; bottom: 10px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    pointer-events: none;
}

.hero__player-img {
    max-width: 100%;
    max-height: 60vh;
    object-fit: contain;
    filter: drop-shadow(10px 10px 0px rgba(0,0,0,0.2));
    animation: float 6s ease-in-out infinite;
}

.hero__image-badge {
    position: absolute;
    bottom: -30px;
    right: 20px;
    background: var(--white);
    border: var(--border-width) solid var(--border-color);
    border-radius: 50%;
    width: 100px;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-sm);
    animation: spin 20s linear infinite;
}

.badge-icon {
    height: 60px;
}

@keyframes float {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.8rem;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 3px solid var(--border-color);
    border-bottom: 3px solid var(--border-color);
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-10px) translateX(-50%); }
    60% { transform: translateY(-5px) translateX(-50%); }
}

/* ═══════════════════ COMMON SECTIONS ═══════════════════ */

section {
    padding: 100px 5%;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

.section-title {
    font-size: 3rem;
    color: var(--coral-red);
    text-shadow: 2px 2px 0 var(--golden-yellow), 3px 3px 0 var(--black);
    margin-bottom: 10px;
}

.section-desc {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

.section-ornament {
    height: 80px;
    filter: drop-shadow(3px 3px 0 var(--black));
}

.section-ornament--left {
    transform: scaleX(-1);
}

/* ═══════════════════ PICK'EM SECTION ═══════════════════ */

.pickem {
    background-color: var(--bg-secondary);
    border-top: var(--border-width-thick) solid var(--border-color);
}

.group-tabs-wrapper {
    margin-bottom: 40px;
    overflow-x: auto;
    padding-bottom: 10px;
}

.group-tabs {
    display: inline-flex;
    gap: 10px;
    padding: 0 10px;
}

.tab-btn {
    background-color: var(--white);
    border: 2px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 30px;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 2px 2px 0 var(--black);
    white-space: nowrap;
}

.tab-btn:hover {
    transform: translateY(-2px);
    box-shadow: 4px 4px 0 var(--black);
    background-color: var(--emerald-green);
    color: var(--white);
}

.tab-btn.active {
    background-color: var(--coral-red);
    color: var(--white);
    transform: translateY(2px);
    box-shadow: none;
    border-color: var(--border-color);
}

.matches-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.match-card {
    background-color: var(--white);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.match-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 5px;
    background-color: var(--cerulean-blue);
}

.match-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.match-teams {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.team {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.team-flag {
    width: 60px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    background-color: #ddd;
    background-size: cover;
    background-position: center;
    box-shadow: 2px 2px 0 rgba(0,0,0,0.1);
}

.team-name {
    font-weight: 700;
    font-size: 1.1rem;
    text-align: center;
}

.match-vs {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--coral-red);
    padding: 0 15px;
}

.match-actions {
    display: flex;
    gap: 10px;
}

.pick-btn {
    flex: 1;
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    padding: 10px;
    border-radius: 8px;
    font-family: var(--font-body);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.pick-btn:hover {
    background-color: var(--golden-yellow);
}

.pick-btn.selected {
    background-color: var(--emerald-green);
    color: var(--white);
    border-color: var(--border-color);
    box-shadow: inset 0 3px 5px rgba(0,0,0,0.2);
}

/* Standings */
.standings-container {
    background-color: var(--white);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-md);
}

.standings-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 20px;
    text-align: center;
}

.standings-table {
    width: 100%;
    border-collapse: collapse;
}

.standings-table th, .standings-table td {
    padding: 12px 15px;
    text-align: center;
    border-bottom: 1px solid #ddd;
}

.standings-table th {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
}

.standings-table td.team-cell {
    text-align: left;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.standings-table .pts-col {
    font-weight: 900;
    color: var(--emerald-green);
    font-size: 1.1rem;
}

.standings-table tr:nth-child(1) td,
.standings-table tr:nth-child(2) td {
    background-color: rgba(0, 166, 81, 0.05);
}

/* ═══════════════════ LEADERBOARD SECTION ═══════════════════ */

.leaderboard {
    background-color: var(--golden-yellow);
    border-top: var(--border-width-thick) solid var(--border-color);
    background-image: radial-gradient(var(--coral-red) 2px, transparent 2px);
    background-size: 30px 30px;
}

.leaderboard-table-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--white);
    border: var(--border-width-thick) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-lg);
}

.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
}

.leaderboard-table th, .leaderboard-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.leaderboard-table th {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    border-bottom: 2px solid var(--border-color);
}

.col-rank { width: 60px; text-align: center !important; }
.col-correct, .col-points, .col-streak { text-align: center !important; }

.leaderboard-table tr.current-user {
    background-color: var(--bg-secondary);
    border: 2px solid var(--emerald-green);
}

.leaderboard-table tr.current-user td {
    font-weight: 700;
}

.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: #ddd;
    font-weight: 900;
    border: 2px solid var(--border-color);
}

.rank-1 .rank-badge { background-color: var(--golden-yellow); color: var(--black); transform: scale(1.2); }
.rank-2 .rank-badge { background-color: #C0C0C0; color: var(--black); }
.rank-3 .rank-badge { background-color: #CD7F32; color: var(--white); }

.points-val {
    font-weight: 900;
    color: var(--coral-red);
    font-size: 1.2rem;
}

/* ═══════════════════ RULES SECTION ═══════════════════ */

.rules {
    background-color: var(--bg-primary);
    border-top: var(--border-width-thick) solid var(--border-color);
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.rule-card {
    background-color: var(--white);
    border: var(--border-width) solid var(--border-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: transform 0.3s;
}

.rule-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.rule-card:nth-child(even) {
    box-shadow: 4px 4px 0 var(--hot-pink);
}
.rule-card:nth-child(even):hover {
    box-shadow: 8px 8px 0 var(--hot-pink);
}

.rule-number {
    position: absolute;
    top: -20px;
    right: 20px;
    background-color: var(--emerald-green);
    color: var(--white);
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 3px solid var(--border-color);
    box-shadow: 2px 2px 0 var(--black);
}

.rule-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    margin-top: 10px;
}

/* ═══════════════════ FOOTER ═══════════════════ */

#site-footer {
    background-color: var(--black);
    color: var(--bg-primary);
    text-align: center;
}

.footer-content {
    padding: 60px 5%;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-logo {
    height: 40px;
}

.footer-brand p {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-credit {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ═══════════════════ TOAST ═══════════════════ */

.toast {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--black);
    color: var(--white);
    padding: 15px 30px;
    border-radius: 30px;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: bottom 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 9999;
}

.toast.show {
    bottom: 30px;
}

/* ═══════════════════ RESPONSIVE ═══════════════════ */

@media (max-width: 1024px) {
    .hero__content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero__text {
        max-width: 100%;
    }
    
    .hero__cta, .hero__stats {
        justify-content: center;
    }
    
    .hero__title {
        font-size: 4rem;
    }
    
    .section-header {
        flex-direction: column;
    }
    
    .section-ornament {
        display: none;
    }
}

@media (max-width: 768px) {
    #site-header {
        flex-direction: column;
        gap: 20px;
        padding: 20px;
    }
    
    #main-nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .hero__title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .matches-container {
        grid-template-columns: 1fr;
    }
    
    .leaderboard-table th:nth-child(3),
    .leaderboard-table td:nth-child(3) {
        display: none; /* Hide correct picks on mobile */
    }
}

/* ═══════════════════ NEW STYLES: HÀNG TRỐNG UPDATE ═══════════════════ */

/* Header Actions Expansion */
.btn-icon-only {
    padding: 8px 12px;
    font-size: 1.2rem;
    box-shadow: 2px 2px 0 var(--black);
}

.admin-toggle-container {
    display: inline-flex;
    align-items: center;
}

.admin-toggle-label {
    cursor: pointer;
    display: inline-flex;
    align-items: center;
}

.admin-toggle-label input {
    display: none;
}

.admin-toggle-btn {
    background-color: var(--white);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.85rem;
    box-shadow: 2px 2px 0 var(--black);
    transition: all 0.2s;
    text-transform: uppercase;
}

.admin-toggle-label input:checked + .admin-toggle-btn {
    background-color: var(--coral-red);
    color: var(--white);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.3);
    transform: translate(1px, 1px);
}

/* Achievements & Badges (Mộc Bản Danh Hiệu) */
.achievements-section {
    max-width: 800px;
    margin: 0 auto 40px auto;
    background-color: #EEDCBA;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    position: relative;
}

.achievements-section::before {
    content: '';
    position: absolute;
    top: 5px; left: 5px; right: 5px; bottom: 5px;
    border: 1px dashed var(--border-color);
    border-radius: 15px;
    pointer-events: none;
}

.achievements-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--coral-red);
    margin-bottom: 15px;
    text-shadow: 1px 1px 0 var(--golden-yellow);
}

.badges-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.badge-card {
    background-color: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 10px 15px;
    width: 130px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    box-shadow: 2px 2px 0 var(--black);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.badge-card.locked {
    filter: grayscale(1) opacity(0.5);
    background-color: #f0f0f0;
}

.badge-card:not(.locked):hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 6px 6px 0 var(--black);
}

.badge-card::after {
    content: '';
    position: absolute;
    top: -50%; left: -60%;
    width: 30%; height: 200%;
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.6) 50%, rgba(255,255,255,0) 100%);
    transform: rotate(30deg);
    transition: all 0.5s;
    pointer-events: none;
}

.badge-card:not(.locked):hover::after {
    left: 130%;
    transition: all 0.7s;
}

.badge-stamp {
    font-size: 2.2rem;
    line-height: 1;
}

.badge-name {
    font-size: 0.8rem;
    font-weight: 700;
    text-align: center;
    color: var(--text-primary);
}

/* Tabs System */
.main-tabs-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.main-tabs {
    display: flex;
    background-color: var(--bg-secondary);
    border: var(--border-width) solid var(--border-color);
    border-radius: 40px;
    padding: 4px;
    box-shadow: var(--shadow-sm);
}

.main-tab-btn {
    background: none;
    border: none;
    padding: 12px 28px;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    border-radius: 30px;
    transition: all 0.2s;
}

.main-tab-btn:hover {
    color: var(--coral-red);
}

.main-tab-btn.active {
    background-color: var(--coral-red);
    color: var(--white);
    box-shadow: 2px 2px 0 var(--black);
    border: 2px solid var(--border-color);
    margin: -2px;
}

.tab-view-content {
    display: none;
}

.tab-view-content.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Score Inputs Styling on Match Cards */
.match-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.match-scores-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin: 15px 0;
}

.score-input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.score-input-group label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.predict-input {
    width: 60px;
    height: 50px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 900;
    background-color: var(--white);
    box-shadow: inset 1px 1px 3px rgba(0,0,0,0.1);
}

.predict-input:focus {
    outline: none;
    border-color: var(--cerulean-blue);
    box-shadow: 0 0 0 3px rgba(0, 173, 239, 0.2);
}

.score-separator {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-secondary);
    margin-top: 20px;
}

/* Actual Score Display (Admin Mode Enabled) */
.actual-score-section {
    background-color: #FFF2CC;
    border: 2px dashed #D6B656;
    border-radius: 8px;
    padding: 10px;
    margin-top: 15px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.actual-score-section.hidden {
    display: none !important;
}

.actual-score-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
}

.actual-input {
    width: 50px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    text-align: center;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 900;
}

.actual-score-display-card {
    background-color: var(--black);
    color: var(--golden-yellow);
    border-radius: 6px;
    padding: 4px 15px;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 2px;
    margin: 10px 0;
    box-shadow: 2px 2px 0 var(--border-color);
}

.actual-score-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--coral-red);
}

.outcome-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-top: 5px;
}

.outcome-badge.exact { background-color: var(--emerald-green); color: var(--white); }
.outcome-badge.correct { background-color: var(--cerulean-blue); color: var(--white); }
.outcome-badge.incorrect { background-color: var(--coral-red); color: var(--white); }

/* AI Analysis Collapsible Section */
.ai-predictions-toggle-btn {
    width: 100%;
    background-color: var(--white);
    border: 2px solid var(--border-color);
    padding: 8px;
    border-radius: 8px;
    font-family: var(--font-body);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 15px;
}

.ai-predictions-toggle-btn:hover {
    background-color: var(--bg-secondary);
}

.ai-predictions-toggle-btn::after {
    content: '▼';
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.ai-predictions-toggle-btn.expanded::after {
    transform: rotate(180deg);
}

.ai-predictions-drawer {
    display: none;
    border-top: 1px dashed var(--border-color);
    margin-top: 15px;
    padding-top: 15px;
    flex-direction: column;
    gap: 15px;
}

.ai-predictions-drawer.show {
    display: flex;
}

.ai-prediction-row {
    border-left: var(--border-width) solid var(--border-color);
    padding-left: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ai-prediction-row.ai-gemini { border-color: var(--golden-yellow); background-color: rgba(255,215,0,0.05); }
.ai-prediction-row.ai-deepseek { border-color: var(--emerald-green); background-color: rgba(0,166,81,0.05); }
.ai-prediction-row.ai-gpt { border-color: var(--hot-pink); background-color: rgba(236,0,140,0.05); }

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

.ai-mascot-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-mascot-img {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background-color: var(--white);
}

.ai-mascot-name {
    font-weight: 700;
    font-size: 0.9rem;
}

.ai-predicted-score {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2px 8px;
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.1rem;
    box-shadow: 1px 1px 0 var(--black);
}

.ai-thinking-text {
    font-size: 0.8rem;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.4;
}

.ai-loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 15px;
}

.spinner {
    width: 30px;
    height: 30px;
    border: 3px solid rgba(0,0,0,0.1);
    border-top-color: var(--coral-red);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.btn-fetch-ai {
    font-size: 0.8rem;
    padding: 4px 10px;
    border-radius: 6px;
    margin-top: 5px;
}

/* Modals General Styles */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(0,0,0,0.6);
    z-index: 10000;
    display: none;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal-overlay.show {
    display: flex;
}

.modal-card {
    background-color: var(--bg-primary);
    border: var(--border-width-thick) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 550px;
    position: relative;
    background-image: radial-gradient(rgba(0,0,0,0.03) 2px, transparent 2px);
    background-size: 20px 20px;
}

.modal-card--scroll {
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.modal-card__header {
    padding: 20px;
    border-bottom: var(--border-width) solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-card__header h3 {
    color: var(--coral-red);
    font-size: 1.5rem;
    text-shadow: 1px 1px 0 var(--golden-yellow);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    font-weight: 700;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-close:hover {
    color: var(--coral-red);
}

.modal-card__body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.settings-intro {
    font-size: 0.9rem;
    margin-bottom: 20px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.mini-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
}

.form-input {
    width: 100%;
    border: 2px solid var(--border-color);
    padding: 12px;
    font-family: var(--font-body);
    font-size: 1rem;
    border-radius: 8px;
}

.form-input:focus {
    outline: none;
    border-color: var(--cerulean-blue);
}

.settings-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 30px;
}

/* Lightbox Modal */
.modal-overlay--lightbox {
    background-color: rgba(26,26,26,0.95);
    flex-direction: column;
    justify-content: flex-start;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    background: none;
    border: none;
    color: var(--white);
    font-size: 3rem;
    cursor: pointer;
    z-index: 10002;
}

.lightbox-toolbar {
    margin-top: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 10001;
    background: rgba(0,0,0,0.5);
    padding: 10px 20px;
    border-radius: 30px;
    color: var(--white);
}

.lightbox-toolbar .btn {
    border-color: var(--white);
    color: var(--white);
    padding: 6px 12px;
    box-shadow: none;
}

.lightbox-tip {
    font-size: 0.8rem;
    opacity: 0.8;
}

.lightbox-viewer {
    width: 100%;
    height: calc(100vh - 120px);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    cursor: grab;
}

.lightbox-viewer:active {
    cursor: grabbing;
}

.lightbox-image {
    max-width: none;
    max-height: none;
    position: absolute;
    transform-origin: center center;
    transition: transform 0.05s ease-out;
    filter: drop-shadow(0 10px 30px rgba(0,0,0,0.5));
}

/* Original Schedule Section Preview styling */
.original-schedule-preview {
    max-width: 100%;
    height: auto;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    display: block;
}

.scroll-frame {
    position: relative;
    cursor: pointer;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.scroll-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(0,0,0,0.3);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.scroll-frame:hover .scroll-overlay {
    opacity: 1;
}

/* Knockout Bracket Tree Styles */
.bracket-scroll-container {
    width: 100%;
    overflow-x: auto;
    padding: 40px 10px;
}

.bracket-wrapper {
    display: flex;
    justify-content: space-between;
    gap: 50px;
    min-width: 1200px;
}

.bracket-round {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    flex: 1;
    position: relative;
}

.bracket-round-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--coral-red);
    text-align: center;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 5px;
    width: 100%;
}

.bracket-match-node {
    width: 250px;
    background-color: var(--white);
    border: var(--border-width) solid var(--border-color);
    border-radius: 8px;
    box-shadow: 2px 2px 0 var(--black);
    position: relative;
    margin: 20px 0;
}

.bracket-match-node::after {
    /* Used for connectors, set dynamically or via standard tree styles */
}

.bracket-match-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
}

.bracket-team-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    border-bottom: 1px solid #eee;
}

.bracket-team-row:last-child {
    border-bottom: none;
}

.bracket-team-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 0.9rem;
}

.bracket-team-flag {
    width: 20px;
    height: 14px;
    border: 1px solid var(--border-color);
}

.bracket-team-score {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.bracket-team-row.winner {
    background-color: rgba(0, 166, 81, 0.08);
}
.bracket-team-row.winner .bracket-team-score {
    color: var(--emerald-green);
}

.bracket-match-footer {
    padding: 6px 10px;
    border-top: 1px dashed var(--border-color);
    display: flex;
    justify-content: center;
}

.bracket-predict-btn {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 3px 10px;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 4px;
    cursor: pointer;
    box-shadow: 1px 1px 0 var(--black);
}

.bracket-predict-btn:hover {
    background-color: var(--golden-yellow);
}

.bracket-predict-btn.predicted {
    background-color: var(--emerald-green);
    color: var(--white);
}

/* Bracket connection lines using CSS borders */
.bracket-wrapper {
    position: relative;
    z-index: 2;
}

/* ═══════════════════ WATERCOLOR BLEED HOVER EFFECTS ═══════════════════ */
.btn, .tab-btn, .main-tab-btn, .badge-card:not(.locked), .rule-card, .match-card {
    position: relative;
    z-index: 1;
    overflow: visible; /* Allow bleed to expand beyond borders */
}

.btn::after, .tab-btn::after, .main-tab-btn::after, .badge-card:not(.locked)::after, .rule-card::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 140%; height: 140%;
    background: radial-gradient(circle, rgba(236, 0, 140, 0.15) 0%, rgba(0, 173, 239, 0.1) 45%, transparent 70%);
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.6s cubic-bezier(0.1, 0.8, 0.3, 1), opacity 0.6s;
    opacity: 0;
    z-index: -2;
    pointer-events: none;
    border-radius: 50%;
}

.btn:hover::after, .tab-btn:hover::after, .main-tab-btn:hover::after, .badge-card:not(.locked):hover::after, .rule-card:hover::after {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.btn-primary::after {
    background: radial-gradient(circle, rgba(0, 166, 81, 0.25) 0%, rgba(255, 215, 0, 0.15) 45%, transparent 70%);
}

/* ═══════════════════ GOLD LEAF & SHIMMER ACCENTS ═══════════════════ */
.gold-accent {
    border: 3px solid #1A1A1A !important;
    position: relative;
}

.gold-accent::before {
    content: '';
    position: absolute;
    top: -4px; left: -4px; right: -4px; bottom: -4px;
    border: 2px solid transparent;
    border-radius: inherit;
    background: linear-gradient(135deg, #BF953F 0%, #FCF6BA 25%, #B38728 50%, #FBF5B7 75%, #AA771C 100%) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 2;
}

/* Apply gold border to key elements */
.user-score, .hero__image-frame {
    border: 3px solid var(--black) !important;
    position: relative;
}

.user-score::before, .hero__image-frame::before {
    content: '';
    position: absolute;
    top: -4px; left: -4px; right: -4px; bottom: -4px;
    border: 2px solid transparent;
    border-radius: inherit;
    background: linear-gradient(135deg, #BF953F 0%, #FCF6BA 25%, #B38728 50%, #FBF5B7 75%, #AA771C 100%) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 2;
}

/* Shimmer sweep animation */
@keyframes sweep {
    0% { transform: translate(-150%, -50%) rotate(30deg); }
    100% { transform: translate(150%, -50%) rotate(30deg); }
}

.shimmer-sweep {
    position: relative;
    overflow: hidden;
}

.shimmer-sweep::before {
    content: '';
    position: absolute;
    top: 50%; left: -60%;
    width: 30%; height: 200%;
    background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.4) 50%, rgba(255, 255, 255, 0) 100%);
    transform: translate(-50%, -50%) rotate(30deg);
    transition: none;
    pointer-events: none;
    z-index: 3;
}

.shimmer-sweep:hover::before {
    animation: sweep 0.8s ease-in-out;
}

/* Apply shimmer sweep to key elements */
.btn, .tab-btn, .main-tab-btn.active {
    position: relative;
    overflow: hidden;
}

.btn::before, .tab-btn::before, .main-tab-btn.active::before {
    content: '';
    position: absolute;
    top: 50%; left: -60%;
    width: 30%; height: 200%;
    background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.4) 50%, rgba(255, 255, 255, 0) 100%);
    transform: translate(-50%, -50%) rotate(30deg);
    transition: none;
    pointer-events: none;
    z-index: 3;
}

.btn:hover::before, .tab-btn:hover::before, .main-tab-btn.active:hover::before {
    animation: sweep 0.8s ease-in-out;
}

/* ═══════════════════ MASCOT CIRCULAR BORDERS & GLOWING AURAS ═══════════════════ */
.ai-mascot-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.ai-mascot-img {
    width: 42px;
    height: 42px;
    border-radius: 50% !important;
    border: 2px solid var(--border-color);
    box-shadow: 2px 2px 0 var(--black);
    background-color: var(--white);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    margin-right: 10px;
}

.ai-prediction-row:hover .ai-mascot-img {
    transform: scale(1.15) rotate(8deg);
}

.ai-prediction-row {
    position: relative;
    border-left: 6px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 12px;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 2px 2px 0 rgba(0,0,0,0.05);
}

.ai-prediction-row.ai-gemini {
    border-left-color: var(--golden-yellow);
    background: linear-gradient(90deg, rgba(255, 215, 0, 0.05) 0%, transparent 100%);
}

.ai-prediction-row.ai-gemini:hover {
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.2), 3px 3px 0 rgba(0,0,0,0.1);
    border-left-width: 9px;
}

.ai-prediction-row.ai-deepseek {
    border-left-color: var(--emerald-green);
    background: linear-gradient(90deg, rgba(0, 166, 81, 0.05) 0%, transparent 100%);
}

.ai-prediction-row.ai-deepseek:hover {
    box-shadow: 0 4px 15px rgba(0, 166, 81, 0.2), 3px 3px 0 rgba(0,0,0,0.1);
    border-left-width: 9px;
}

.ai-prediction-row.ai-gpt {
    border-left-color: var(--hot-pink);
    background: linear-gradient(90deg, rgba(236, 0, 140, 0.05) 0%, transparent 100%);
}

.ai-prediction-row.ai-gpt:hover {
    box-shadow: 0 4px 15px rgba(236, 0, 140, 0.2), 3px 3px 0 rgba(0,0,0,0.1);
    border-left-width: 9px;
}

/* ═══════════════════ SVG BRACKET CONNECTION LAYER ═══════════════════ */
.bracket-scroll-container {
    position: relative;
}

.bracket-svg-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.bracket-path {
    fill: none;
    stroke: rgba(26, 26, 26, 0.2);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke 0.4s ease, stroke-width 0.4s ease, stroke-dasharray 0.4s ease;
}

.bracket-path.active {
    stroke: var(--golden-yellow);
    stroke-width: 4;
}

.bracket-path.active-spark {
    stroke-dasharray: 8 6;
    animation: spark-flow 25s linear infinite;
}

@keyframes spark-flow {
    to {
        stroke-dashoffset: -1000;
    }
}

/* ═══════════════════ 3D PERSPECTIVE TILT ═══════════════════ */
.badges-container, .rules-grid {
    perspective: 1000px;
}

.badge-card, .rule-card {
    transform-style: preserve-3d;
    transition: transform 0.1s ease, box-shadow 0.2s ease;
}

/* ═══════════════════ HUMAN VS AI DASHBOARD STYLES ═══════════════════ */
.clash-dashboard {
    max-width: 1200px;
    margin: 0 auto 40px auto;
    background-color: var(--bg-secondary);
    border: var(--border-width-thick) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 6px;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 5;
    background-image: radial-gradient(rgba(255, 255, 255, 0.02) 2px, transparent 2px);
    background-size: 20px 20px;
    overflow: hidden;
}

.clash-dashboard::before {
    content: '';
    position: absolute;
    top: -5px; left: -5px; right: -5px; bottom: -5px;
    border: 2px solid transparent;
    border-radius: inherit;
    background: linear-gradient(135deg, #BF953F 0%, #FCF6BA 25%, #B38728 50%, #FBF5B7 75%, #AA771C 100%) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 4;
}

.clash-dashboard-inner {
    background-color: var(--bg-secondary);
    border: 2px solid rgba(255, 255, 255, 0.05);
    border-radius: calc(var(--border-radius-lg) - 4px);
    padding: 25px;
    position: relative;
}

.clash-header-frame {
    text-align: center;
    margin-bottom: 25px;
    border-bottom: 3px double var(--golden-yellow);
    padding-bottom: 12px;
}

.clash-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--golden-yellow);
    text-shadow: 2px 2px 0 var(--black);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.clash-stats-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 25px;
}

.clash-card {
    background-color: rgba(7, 9, 25, 0.6);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: inset 0 4px 10px rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
}

.clash-card h4 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--white);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-left: 4px solid var(--emerald-green);
    padding-left: 8px;
    line-height: 1.2;
}

/* Scoreboard Card */
.scoreboard-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex: 1;
    margin: 10px 0;
}

.scoreboard-team {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.team-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.team-score-num {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1;
    margin-top: 5px;
    text-shadow: 0 0 10px rgba(0,0,0,0.5);
}

.human-team .team-score-num {
    color: var(--cerulean-blue);
    text-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
}

.ai-team .team-score-num {
    color: var(--hot-pink);
    text-shadow: 0 0 8px rgba(255, 0, 96, 0.4);
}

.scoreboard-vs {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--text-secondary);
    opacity: 0.5;
}

.scoreboard-status-msg {
    text-align: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--golden-yellow);
    border-top: 1px dashed rgba(255,255,255,0.1);
    padding-top: 10px;
    margin-top: 10px;
}

/* Record / Wins Count Progress Card */
.clash-record-numbers {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.record-text strong {
    font-family: var(--font-heading);
    font-size: 1.2rem;
}

.record-text:nth-child(1) { color: var(--cerulean-blue); }
.record-text:nth-child(2) { color: var(--text-secondary); }
.record-text:nth-child(3) { color: var(--hot-pink); }

.clash-progress-wrapper {
    margin-bottom: 15px;
}

.clash-progress-bar {
    height: 16px;
    background-color: var(--black);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    border: 1px solid rgba(255,255,255,0.1);
}

.progress-segment {
    height: 100%;
    transition: width 0.6s ease;
}

.segment-human { background-color: var(--emerald-green); }
.segment-tie { background-color: #475569; }
.segment-ai { background-color: var(--hot-pink); }

.record-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Mini Standings Grid Card */
.mini-standings-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.mini-standings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border-radius: 6px;
    background-color: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.05);
    font-size: 0.85rem;
    font-weight: 700;
}

.mini-standings-row.highlight {
    background: linear-gradient(90deg, rgba(255,208,0,0.1) 0%, transparent 100%);
    border-color: var(--golden-yellow);
}

.mini-standings-row.loading {
    justify-content: center;
    color: var(--text-secondary);
    font-style: italic;
}

.mini-competitor {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mini-competitor-rank {
    font-family: var(--font-heading);
    font-weight: 900;
    width: 18px;
    color: var(--text-secondary);
}

.mini-standings-row.highlight .mini-competitor-rank {
    color: var(--golden-yellow);
}

.mini-competitor-avatar {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background-color: var(--white);
}

.mini-competitor-score {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 900;
}

.mini-standings-row.highlight .mini-competitor-score {
    color: var(--golden-yellow);
}

/* ═══════════════════ MATCH CARD SIDE-BY-SIDE REDESIGN ═══════════════════ */
.match-card {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary);
}

.match-card::before {
    background-color: var(--emerald-green) !important; /* Make card strip brand electric blue */
}

/* Prediction layout columns split */
.match-pickem-columns {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 15px;
    margin-top: 15px;
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
    padding-top: 15px;
}

.pickem-column-human, .pickem-column-ai {
    background-color: rgba(7, 9, 25, 0.4);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    position: relative;
    min-height: 120px;
    display: flex;
    flex-direction: column;
}

.pickem-column-title {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 4px;
    z-index: 2;
}

/* Watermarks inside card panels */
.watermark-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    opacity: 0.04;
    pointer-events: none;
    z-index: 1;
}

.watermark-football { background-image: url('assets/football.png'); width: 50px; height: 50px; }
.watermark-dragon { background-image: url('assets/dragon.png'); }
.watermark-tiger { background-image: url('assets/tiger.png'); }
.watermark-phoenix { background-image: url('assets/phoenix.png'); }

/* Scoreboard style inputs */
.pickem-column-human .match-scores-container {
    margin: auto 0;
    z-index: 2;
}

.predict-input {
    background-color: var(--bg-primary) !important;
    border-color: var(--border-color) !important;
    color: var(--golden-yellow) !important;
    text-shadow: 0 0 5px rgba(255, 208, 0, 0.3);
}

.predict-input:focus {
    border-color: var(--cerulean-blue) !important;
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.2) !important;
}

.score-separator {
    color: var(--text-secondary);
    margin-top: 15px !important;
}

/* AI prediction compact list styles */
.ai-picks-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: auto 0;
    z-index: 2;
}

.ai-pick-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.03);
    padding: 4px 8px;
    border-radius: 6px;
}

.ai-pick-competitor {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ai-pick-avatar {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background-color: var(--white);
}

.ai-pick-name {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-primary);
}

.ai-pick-score-display {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ai-score-badge {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 0.95rem;
    background-color: rgba(0,0,0,0.3);
    color: var(--text-primary);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 1px 6px;
    border-radius: 4px;
}

/* Speech bubble tooltip for AI thinking comments */
.ai-commentary-trigger {
    background: none;
    border: none;
    font-size: 0.85rem;
    cursor: pointer;
    opacity: 0.4;
    transition: opacity 0.2s, transform 0.2s;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
}

.ai-commentary-trigger:hover {
    opacity: 1;
    transform: scale(1.15);
}

.ai-pick-row-wrapper {
    position: relative;
}

.ai-commentary-tooltip {
    position: absolute;
    bottom: 110%;
    right: 0;
    width: 240px;
    background-color: #161a38;
    border: 2px solid var(--golden-yellow);
    border-radius: 8px;
    padding: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5), var(--shadow-sm);
    z-index: 100;
    display: none;
    pointer-events: none;
}

.ai-commentary-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    right: 15px;
    border-width: 6px;
    border-style: solid;
    border-color: var(--golden-yellow) transparent transparent transparent;
}

.ai-commentary-tooltip-title {
    font-weight: 700;
    font-size: 0.72rem;
    color: var(--golden-yellow);
    margin-bottom: 4px;
    text-transform: uppercase;
}

.ai-commentary-tooltip-text {
    font-size: 0.78rem;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.4;
}

.ai-pick-row-wrapper:hover .ai-commentary-tooltip {
    display: block;
}

/* 🏆 CLASH BATTLE OUTCOME WINNER STAMPS 🏆 */
.battle-outcome-stamp {
    position: absolute;
    top: -5px;
    right: -10px;
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 1px;
    padding: 4px 10px;
    border-radius: 4px;
    border: 2px solid transparent;
    transform: rotate(-8deg);
    z-index: 8;
    text-shadow: 1px 1px 0 rgba(0,0,0,0.5);
    box-shadow: 2px 2px 5px rgba(0,0,0,0.3);
    text-transform: uppercase;
}

.stamp-human-win {
    background-color: var(--bg-secondary);
    color: var(--golden-yellow);
    border-color: var(--golden-yellow);
}

.stamp-ai-win {
    background-color: var(--bg-secondary);
    color: var(--hot-pink);
    border-color: var(--hot-pink);
}

.stamp-draw {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-color: var(--text-secondary);
}

/* Glowing Battle Victory Cards */
.match-card.human-victory {
    box-shadow: 0 0 15px rgba(255, 208, 0, 0.25), var(--shadow-sm);
    border-color: var(--golden-yellow) !important;
}

.match-card.ai-victory {
    box-shadow: 0 0 15px rgba(255, 0, 96, 0.25), var(--shadow-sm);
    border-color: var(--hot-pink) !important;
}

/* Sidebar and modal fixes for dark theme */
.achievements-section {
    background-color: var(--bg-secondary) !important;
}

.actual-score-section {
    background-color: rgba(255, 208, 0, 0.05) !important;
    border-color: var(--golden-yellow) !important;
}

.actual-score-display-card {
    background-color: var(--bg-primary) !important;
    border-color: var(--border-color) !important;
    color: var(--golden-yellow) !important;
}

/* Standings styling fixes */
.standings-container {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
}

.standings-table th {
    border-bottom-color: var(--border-color) !important;
}

.standings-table td {
    border-bottom: 1px solid rgba(255,255,255,0.05) !important;
}

.standings-table tr:nth-child(1) td,
.standings-table tr:nth-child(2) td {
    background-color: rgba(60, 80, 255, 0.06) !important;
}

/* Leaderboard highlights */
.leaderboard-table-wrapper {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
}

.leaderboard-table th {
    border-bottom-color: var(--border-color) !important;
}

.leaderboard-table td {
    border-bottom: 1px solid rgba(255,255,255,0.05) !important;
}

.leaderboard-table tr.current-user {
    background-color: rgba(255, 208, 0, 0.06) !important;
    border: 2px solid var(--golden-yellow) !important;
}

/* Bracket fixes */
.bracket-match-node {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
}

.bracket-match-header {
    background-color: var(--bg-primary) !important;
    border-bottom-color: var(--border-color) !important;
}

.bracket-team-row {
    border-bottom-color: rgba(255,255,255,0.05) !important;
}

.bracket-team-row.winner {
    background-color: rgba(60, 80, 255, 0.12) !important;
}

.bracket-team-row.winner .bracket-team-score {
    color: var(--cerulean-blue) !important;
}

/* Settings modal dark fixes */
.form-input {
    background-color: var(--bg-primary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

/* Collapsible Folklore Drawer */
.folklore-drawer-toggle {
    width: 100%;
    margin-top: 15px;
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    padding: 10px;
    border-radius: 8px;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}

.folklore-drawer-toggle::after {
    content: '▼';
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.folklore-drawer-toggle.expanded::after {
    transform: rotate(180deg);
}

.folklore-tbody {
    display: none;
}

.folklore-tbody.show {
    display: table-row-group;
}

@media (max-width: 900px) {
    .clash-stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .match-pickem-columns {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

/* ═══════════════════ MULTI-COLUMN GROUP POSTER GRID VIEW ═══════════════════ */
.poster-grid-active .group-tabs-wrapper {
    display: none !important;
}

.poster-grid-active .matches-container {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 30px !important;
    max-width: 1400px;
    margin: 0 auto 50px auto;
}

.poster-grid-active #standings-container {
    display: none !important; /* Hide single standings table since group cards have their own */
}

/* Group Poster Card layout inside the grid */
.group-poster-card {
    background-color: var(--bg-secondary) !important;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    gap: 20px;
    color: var(--text-card);
    position: relative;
    overflow: hidden;
}

/* Gold leaf border effect for group card scrolls */
.group-poster-card::before {
    content: '';
    position: absolute;
    top: -3px; left: -3px; right: -3px; bottom: -3px;
    border: 2px solid transparent;
    border-radius: inherit;
    background: linear-gradient(135deg, #BF953F 0%, #FCF6BA 25%, #B38728 50%, #FBF5B7 75%, #AA771C 100%) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 3;
}

.group-poster-header {
    text-align: center;
    border-bottom: 2px dashed var(--border-color);
    padding-bottom: 8px;
    margin-bottom: 5px;
    z-index: 2;
}

.group-poster-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--black);
    text-shadow: 1px 1px 0 var(--golden-yellow);
    text-transform: uppercase;
}

.group-poster-matches {
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 2;
}

/* Compact nested card layouts for poster grid */
.group-poster-card .match-card {
    padding: 12px;
    border-width: 2px;
    box-shadow: 2px 2px 0 var(--black);
}

.group-poster-card .match-header {
    font-size: 0.72rem;
    margin-bottom: 8px;
}

.group-poster-card .match-teams {
    margin-bottom: 12px;
}

.group-poster-card .team-flag {
    width: 45px;
    height: 30px;
}

.group-poster-card .team-name {
    font-size: 0.9rem;
}

.group-poster-card .match-vs {
    font-size: 1.1rem;
}

.group-poster-card .match-pickem-columns {
    grid-template-columns: 1fr; /* Force vertical stacking on small grid items */
    gap: 8px;
    padding-top: 8px;
}

.group-poster-card .pickem-column-human, 
.group-poster-card .pickem-column-ai {
    min-height: 80px;
    padding: 8px;
}

.group-poster-card .ai-pick-row {
    padding: 2px 6px;
}

/* Nested standings table in group card */
.group-poster-standings {
    margin-top: auto;
    border-top: 2px dashed var(--border-color);
    padding-top: 15px;
    z-index: 2;
}

.group-poster-standings h5 {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 10px;
    text-align: center;
}

.group-poster-standings .standings-table th, 
.group-poster-standings .standings-table td {
    padding: 6px 8px;
    font-size: 0.76rem;
    color: var(--text-card);
}

.group-poster-standings .standings-table tr:nth-child(1) td,
.group-poster-standings .standings-table tr:nth-child(2) td {
    background-color: rgba(60, 80, 255, 0.08) !important;
}

/* ═══════════════════ DARK TEXT AND LIGHT CONTRAST OVERRIDES ═══════════════════ */
/* Cards and dialogs must use dark ink-black text on their gold-cream backgrounds */
.clash-dashboard, .clash-card, .achievements-section, .badge-card,
.leaderboard-table-wrapper, .standings-container, .rule-card, .modal-card,
.actual-score-section, .actual-score-display-card, .form-group label {
    color: var(--text-card) !important;
}

.clash-card h4, .scoreboard-vs, .record-desc, .mini-standings-row,
.achievements-title, .badge-name, .section-desc, .col-name, .col-correct,
.rules-section .section-desc, .rule-card h3, .rule-card p,
.modal-card__header h3, .settings-intro, .form-group label strong {
    color: var(--text-card) !important;
}

.scoreboard-status-msg {
    color: var(--black) !important;
    border-top-color: rgba(0, 0, 0, 0.1) !important;
}

.mini-standings-row {
    background-color: rgba(0, 0, 0, 0.03) !important;
    border-color: rgba(0, 0, 0, 0.05) !important;
}

.mini-standings-row.highlight {
    background: linear-gradient(90deg, rgba(60, 80, 255, 0.1) 0%, transparent 100%) !important;
    border-color: var(--emerald-green) !important;
    color: var(--emerald-green) !important;
}

.mini-standings-row.highlight .mini-competitor-score {
    color: var(--emerald-green) !important;
}

.mini-competitor-rank {
    color: var(--text-card-muted) !important;
}

.clash-record-numbers span {
    color: var(--text-card-muted) !important;
}

.clash-record-numbers span strong {
    color: var(--text-card) !important;
}

.progress-segment.segment-tie {
    background-color: #64748b !important;
}

/* Fix section titles and descriptions for electric blue background */
.section-title {
    color: var(--golden-yellow) !important;
    text-shadow: 2px 2px 0 var(--black) !important;
}

.section-desc {
    color: var(--white) !important;
    text-shadow: 1px 1px 0 rgba(0,0,0,0.3);
}

/* Light background tab rules */
.main-tabs-wrapper {
    margin-bottom: 35px;
    align-items: center;
    gap: 15px;
}

.main-tabs {
    background-color: rgba(255, 255, 255, 0.15) !important;
    border-color: var(--white) !important;
    box-shadow: none !important;
}

.main-tab-btn {
    color: var(--white) !important;
}

.main-tab-btn:hover {
    color: var(--golden-yellow) !important;
}

.main-tab-btn.active {
    background-color: var(--golden-yellow) !important;
    color: var(--black) !important;
    border-color: var(--black) !important;
    box-shadow: 2px 2px 0 var(--black) !important;
}

/* Layout toggle button */
#btn-toggle-layout {
    background-color: var(--golden-yellow) !important;
    color: var(--black) !important;
    border-color: var(--black) !important;
    box-shadow: 2px 2px 0 var(--black) !important;
    font-weight: 700;
}

#btn-toggle-layout:hover {
    background-color: var(--white) !important;
    transform: translate(-1px, -1px);
    box-shadow: 3px 3px 0 var(--black) !important;
}

/* Responsive adjustment for poster grid */
@media (max-width: 1400px) {
    .poster-grid-active .matches-container {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 950px) {
    .poster-grid-active .matches-container {
        grid-template-columns: 1fr !important;
    }
}