/* ========================================
   BASE – Root variables, body, nav, main,
   sections, typography, tables, lists,
   round-badges, info/warning boxes, filter-bar
   ======================================== */

/* Sport Games Ultra Cup – Dark Sporty Theme */

:root {
    --pico-background-color: #0f1117;
    --pico-color: #e0e0e0;
    --pico-card-background-color: #1a1d27;
    --pico-card-sectioning-background-color: #1e2130;
    --pico-muted-color: #8a8fa3;
    --pico-muted-border-color: #2a2e3d;
    --pico-primary: #f0b429;
    --pico-primary-hover: #f7c948;
    --pico-secondary: #4dabf7;
    --pico-table-border-color: #2a2e3d;
    --pico-h1-color: #f0b429;
    --pico-h2-color: #f0b429;
    --pico-h3-color: #e0e0e0;
    --pico-h4-color: #e0e0e0;
    --accent-gold: #f0b429;
    --accent-blue: #4dabf7;
    --accent-green: #51cf66;
    --surface-dark: #141722;
    --surface-card: #1a1d27;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    background-color: var(--surface-dark);
}

body {
    background-color: var(--surface-dark);
    color: var(--pico-color);
    font-family: 'Barlow', system-ui, -apple-system, sans-serif;
}

/* Navigation */
.main-nav {
    background-color: #0a0c12;
    border: none;
    border-bottom: 2px solid var(--accent-gold);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.main-nav.nav-hidden {
    transform: translateY(-100%);
}

.main-nav .brand {
    font-family: 'Planet Kosmos', sans-serif;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--accent-gold);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-shadow:
        0 0 0 transparent,
        0 0 0 transparent,
        0 0 0 transparent;
    transition: text-shadow 0.6s ease;
    flex-shrink: 0;
    margin-right: 8rem;
}

.main-nav .brand:hover {
    text-shadow:
        0 0 8px rgba(240, 180, 41, 0.7),
        0 0 25px rgba(240, 180, 41, 0.4),
        0 0 50px rgba(240, 180, 41, 0.2);
}

.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.main-nav ul li a {
    color: var(--pico-muted-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
    color: var(--accent-gold);
}

/* Hamburger Button - hidden on desktop */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 4px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--accent-gold);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

/* Main content */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

/* Hero Section */
.hero-logo {
    width: 150px;
    height: auto;
    margin-bottom: 0.5rem;
}

.hero-brand {
    display: block;
    font-family: 'Planet Kosmos', sans-serif;
    font-size: 1.4rem;
    color: var(--accent-gold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.hero {
    text-align: center;
    padding: 3rem 1rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--pico-muted-border-color);
}

.hero h1 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.hero p {
    color: var(--pico-muted-color);
    font-size: 1.15rem;
}

/* Section Navigation (anchor links) */
.section-nav {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
    position: sticky;
    top: var(--nav-height, 52px);
    z-index: 99;
    background-color: var(--surface-dark);
    padding: 0.75rem 0;
    transition: top 0.3s ease;
}

.section-nav.nav-top {
    top: 0;
}
.section-nav a {
    color: var(--pico-muted-color);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.3rem 0.75rem;
    border: 1px solid var(--pico-muted-border-color);
    border-radius: 20px;
    transition: all 0.2s;
}
.section-nav a:hover {
    color: var(--accent-gold);
    border-color: var(--accent-gold);
}

/* Section styling */
section {
    background-color: var(--surface-card);
    border: 1px solid var(--pico-muted-border-color);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

section h2 {
    font-family: 'Rajdhani', sans-serif;
    color: var(--accent-gold);
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 0;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--pico-muted-border-color);
    margin-bottom: 1.25rem;
}

section h3 {
    color: var(--accent-blue);
    font-size: 1.15rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

section h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
}

/* Round badges */
.round-badge {
    display: inline-block;
    background-color: var(--accent-gold);
    color: #0f1117;
    font-weight: 700;
    font-size: 0.8rem;
    padding: 0.2rem 0.65rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.5rem;
}

.round-badge.wildcard {
    background-color: var(--accent-blue);
}

.round-badge.semifinal {
    background-color: var(--accent-green);
}

.round-badge.final {
    background-color: #ff6b6b;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.95rem;
}

thead {
    background-color: #12151e;
}

thead th {
    color: var(--accent-gold);
    font-weight: 600;
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 2px solid var(--accent-gold);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tbody td {
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--pico-muted-border-color);
    color: var(--pico-color);
}

tbody tr:hover {
    background-color: rgba(240, 180, 41, 0.05);
}

/* Highlight rows */
tbody tr.highlight-gold td {
    color: var(--accent-gold);
    font-weight: 600;
}

/* Lists */
section ul, section ol {
    padding-left: 1.25rem;
    margin: 0.75rem 0;
}

section li {
    margin-bottom: 0.4rem;
    line-height: 1.6;
}

/* Info box */
.info-box {
    background-color: rgba(77, 171, 247, 0.08);
    border-left: 3px solid var(--accent-blue);
    border-radius: 0 8px 8px 0;
    padding: 1rem 1.25rem;
    margin: 1rem 0;
    font-size: 0.9rem;
    color: var(--pico-muted-color);
}

.info-box strong {
    color: var(--accent-blue);
}

/* Warning box */
.warning-box {
    background-color: rgba(255, 107, 107, 0.08);
    border-left: 3px solid #ff6b6b;
    border-radius: 0 8px 8px 0;
    padding: 1rem 1.25rem;
    margin: 1rem 0;
    font-size: 0.9rem;
    color: var(--pico-muted-color);
}

.warning-box strong {
    color: #ff6b6b;
}

/* Timeline */
.timeline-table tbody td:first-child {
    font-weight: 600;
    color: var(--accent-gold);
    white-space: nowrap;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--pico-muted-color);
    font-size: 0.85rem;
    border-top: 1px solid var(--pico-muted-border-color);
    margin-top: 2rem;
}

footer strong {
    color: var(--accent-gold);
}

/* Filter Bar */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background-color: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--pico-muted-border-color);
    border-radius: 20px;
    padding: 0.35rem 0.85rem;
    font-size: 0.85rem;
    color: var(--pico-muted-color);
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}

.filter-chip:hover {
    border-color: var(--accent-gold);
    color: var(--pico-color);
}

.filter-chip:focus-within {
    border-color: var(--accent-gold);
    color: var(--pico-color);
    outline: 2px solid var(--accent-gold);
    outline-offset: 2px;
}

.filter-chip.active {
    background-color: rgba(240, 180, 41, 0.15);
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    font-weight: 600;
}

.filter-chip input[type="checkbox"] {
    display: none;
}

/* Muted helper */
.muted {
    color: var(--pico-muted-color);
    font-size: 0.9rem;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 2rem 1rem;
}
.empty-state-logo {
    width: 60px;
    height: auto;
    opacity: 0.3;
    margin-bottom: 0.75rem;
}
.empty-state p {
    color: var(--pico-muted-color);
    font-size: 0.9rem;
}

/* Back-to-Top Button */
#back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--accent-gold);
    background-color: var(--surface-dark);
    color: var(--accent-gold);
    font-size: 1.6rem;
    cursor: pointer;
    z-index: 99;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

#back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

#back-to-top:hover {
    background-color: var(--accent-gold);
    color: var(--surface-dark);
}

/* ========================================
   BASE – Light Theme
   ======================================== */

[data-theme="light"] {
    --pico-background-color: #f5f5f7;
    --pico-color: #1a1a2e;
    --pico-card-background-color: #ffffff;
    --pico-card-sectioning-background-color: #f0f0f5;
    --pico-muted-color: #5a5e73;
    --pico-muted-border-color: #d4d4dc;
    --pico-primary: #c8941e;
    --pico-primary-hover: #b07e15;
    --pico-secondary: #2563eb;
    --pico-table-border-color: #d4d4dc;
    --pico-h1-color: #c8941e;
    --pico-h2-color: #c8941e;
    --pico-h3-color: #1a1a2e;
    --pico-h4-color: #1a1a2e;
    --accent-gold: #c8941e;
    --accent-blue: #2563eb;
    --accent-green: #16a34a;
    --surface-dark: #f5f5f7;
    --surface-card: #ffffff;
}

[data-theme="light"] body {
    background-color: #f5f5f7;
    color: #1a1a2e;
}

[data-theme="light"] .main-nav {
    background-color: #ffffff;
    border-bottom-color: var(--accent-gold);
}

[data-theme="light"] thead {
    background-color: #f0f0f5;
}

[data-theme="light"] tbody tr:hover {
    background-color: rgba(200, 148, 30, 0.06);
}

[data-theme="light"] .filter-chip {
    background-color: rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .section-nav {
    background-color: #f5f5f7;
}

[data-theme="light"] .round-badge {
    color: #ffffff;
}

[data-theme="light"] #back-to-top {
    background-color: #ffffff;
}

[data-theme="light"] .duration-tag {
    background-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] th.sortable:hover {
    color: #1a1a2e;
}

[data-theme="light"] th.sortable.sort-active::after {
    color: #1a1a2e;
}

/* ========================================
   BASE – Responsive
   ======================================== */

@media (max-width: 768px) {
    main {
        padding: 1.5rem 0.75rem 3rem;
        overflow-x: clip;
    }

    .section-nav {
        flex-wrap: nowrap;
        overflow-x: auto;
        justify-content: flex-start;
        padding: 0.75rem 1rem;
        gap: 0.5rem;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .section-nav::-webkit-scrollbar {
        display: none;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    section {
        padding: 1.25rem;
    }

    .main-nav .container {
        flex-wrap: wrap;
    }

    .nav-toggle {
        display: flex;
    }

    .main-nav ul {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 0;
        padding: 0.5rem 0 0;
    }

    .main-nav ul li a {
        display: block;
        padding: 0.5rem 0;
        white-space: nowrap;
    }

    .main-nav.open ul {
        display: flex;
    }

    /* Animate hamburger to X when open */
    .main-nav.open .nav-toggle span:nth-child(1) {
        transform: rotate(45deg) translate(4px, 4px);
    }
    .main-nav.open .nav-toggle span:nth-child(2) {
        opacity: 0;
    }
    .main-nav.open .nav-toggle span:nth-child(3) {
        transform: rotate(-45deg) translate(4px, -4px);
    }

    .main-nav .brand {
        margin-right: 0;
    }

    #back-to-top {
        bottom: 1rem;
        right: 1rem;
    }
}