/* ===========================================
   Design Tokens
   =========================================== */
:root {
    /* Backgrounds */
    --bg:          #0c0c12;
    --bg-alt:      #13131a;
    --bg-mid:      #18182a;
    --surface:     rgba(255, 255, 255, 0.04);

    /* Borders */
    --border:         rgba(255, 255, 255, 0.08);
    --border-accent:  rgba(109, 40, 217, 0.35);
    --border-hover:   rgba(109, 40, 217, 0.55);

    /* Single accent — deep violet */
    --primary:             #7c3aed;
    --primary-dark:        #5b21b6;
    --primary-glow:        rgba(124, 58, 237, 0.30);
    --primary-glow-strong: rgba(124, 58, 237, 0.50);
    --primary-soft:        rgba(124, 58, 237, 0.08);

    /* Text */
    --text:       #f4f4f5;
    --text-muted: #71717a;
    --text-sub:   #a1a1aa;

    /* Gradients */
    --grad-cta:  linear-gradient(135deg, var(--primary), var(--primary-dark));
    --grad-hero: linear-gradient(160deg, var(--bg) 0%, var(--bg-mid) 50%, var(--bg) 100%);

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 15px;
    --radius-lg: 20px;
    --radius-pill: 50px;

    /* Spacing scale */
    --section-padding: 6rem 2rem;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
}

/* ===========================================
   Accessibility
   =========================================== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: var(--text);
    padding: 8px 16px;
    text-decoration: none;
    z-index: 10000;
    border-radius: 0 0 4px 0;
}

.skip-link:focus {
    top: 0;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ===========================================
   Navigation
   =========================================== */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.2rem;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-menu a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.nav-menu a:hover {
    color: var(--text);
}

.nav-cta {
    padding: 0.7rem 1.5rem;
    background: var(--grad-cta);
    color: var(--text) !important;
    border-radius: var(--radius-pill);
    font-weight: 700;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--primary-glow);
}

/* ===========================================
   Hero
   =========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    padding-top: 6rem;
    background: var(--bg);
    position: relative;
    overflow: hidden;
}

/* Depth layers: a wide soft glow + a sharper central one */
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% 40%, rgba(124, 58, 237, 0.13), transparent 70%),
        radial-gradient(ellipse 40% 30% at 50% 35%, rgba(124, 58, 237, 0.10), transparent 60%);
    pointer-events: none;
}

/* Subtle top border line */
.hero::after {
    content: '';
    position: absolute;
    top: 0; left: 15%; right: 15%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 1200px;
}

.logo {
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 2.5rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.4rem;
    opacity: 0.9;
}

h1 {
    font-size: clamp(2.8rem, 8vw, 6.5rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    color: var(--text);
    line-height: 1.05;
    letter-spacing: -0.02em;
}

.tagline {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    margin-bottom: 2rem;
    color: var(--text-sub);
    font-weight: 400;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.event-details {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    margin: 3rem 0;
    font-size: 1.1rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.detail-icon {
    font-size: 1.5rem;
}

.prize-highlight {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--primary-soft);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-accent);
}

.prize-highlight h2,
.prize-highlight h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.prize-tiers {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.prize-tier {
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.prize-tier strong {
    color: var(--text);
    font-size: 1.3rem;
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 2rem;
}

/* ===========================================
   Buttons
   =========================================== */
.btn {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
}

.btn-primary {
    background: var(--grad-cta);
    color: var(--text);
    box-shadow: 0 10px 40px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px var(--primary-glow-strong);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 2px solid var(--text);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* ===========================================
   Section Shared
   =========================================== */
.section {
    padding: var(--section-padding);
}

.format-section {
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    color: var(--text-sub);
    font-size: 1.1rem;
    margin-bottom: 4rem;
}

/* ===========================================
   Format Cards
   =========================================== */
.format-flow {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    align-items: center;
}

.format-card {
    background: var(--surface);
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.format-card:hover {
    transform: translateY(-10px);
    border-color: var(--border-accent);
    box-shadow: 0 20px 60px var(--primary-soft);
}

.format-card::after {
    content: '→';
    position: absolute;
    right: -2rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
    color: var(--primary);
    opacity: 0.3;
}

.format-card:last-child::after {
    content: '';
}

.format-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.format-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.format-card p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===========================================
   Vibe / Competition Flow
   =========================================== */
.vibe-section {
    padding: var(--section-padding);
    background: var(--bg);
}

.vibe-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.vibe-card {
    background: var(--surface);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.vibe-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
}

.vibe-card ul {
    list-style: none;
    padding-left: 0;
}

.vibe-card li {
    padding: 0.6rem 0;
    color: var(--text-sub);
    display: flex;
    align-items: start;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.vibe-card li:last-child {
    border-bottom: none;
}

.vibe-card li::before {
    content: '→';
    color: var(--primary);
    font-weight: bold;
    flex-shrink: 0;
}

/* ===========================================
   FAQ
   =========================================== */
.faq-section {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--border-accent);
}

.faq-question {
    width: 100%;
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
    transition: all 0.3s ease;
    background: none;
    border: none;
    text-align: left;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question::after {
    content: '+';
    font-size: 2rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    color: var(--text-muted);
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 2rem 1.5rem 2rem;
}

/* ===========================================
   Sponsors
   =========================================== */
.sponsors-section {
    padding: var(--section-padding);
    background: var(--bg);
}

.sponsors-grid {
    max-width: 1200px;
    margin: 3rem auto 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    align-items: center;
}

.sponsor-card {
    background: var(--surface);
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    text-align: center;
    transition: all 0.3s ease;
}

.sponsor-card:hover {
    transform: translateY(-10px);
    border-color: var(--border-accent);
    box-shadow: 0 20px 60px var(--primary-soft);
}

.sponsor-logo {
    width: 100%;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* ===========================================
   Contact
   =========================================== */
.contact-section {
    padding: 8rem 2rem 4rem;
    min-height: 100vh;
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.contact-card {
    background: var(--surface);
    padding: 3rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.contact-card h2,
.contact-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
}

.contact-card p, .contact-card ul {
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.contact-card ul {
    list-style: none;
    padding-left: 0;
}

.contact-card li {
    padding: 0.5rem 0;
    display: flex;
    align-items: start;
    gap: 0.5rem;
}

.contact-card li::before {
    content: '→';
    color: var(--text-muted);
    font-weight: bold;
}

.contact-card a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-card a:hover {
    color: var(--text);
}

/* ===========================================
   Footer
   =========================================== */
footer {
    padding: 4rem 2rem 2rem;
    background: var(--bg);
    text-align: center;
    border-top: 1px solid var(--border);
}

footer p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    margin-top: 2rem;
}

.footer-links a {
    color: var(--text-sub);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--text);
}

/* ===========================================
   Competitions List (Homepage)
   =========================================== */
.competitions-hero {
    min-height: 65vh;
}

.competitions-hero .tagline-note {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15rem;
    font-weight: 500;
    margin-top: 1.5rem;
    margin-bottom: 0;
}

.competitions-section {
    padding: var(--section-padding);
    background: var(--bg);
}

.competitions-list {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.competition-entry {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 2.5rem 3rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--surface);
    transition: all 0.3s ease;
}

.competition-entry--open {
    border-color: var(--border);
    border-left: 3px solid var(--primary);
    background: var(--surface);
}

.competition-entry--open:hover {
    border-color: var(--border);
    border-left-color: var(--primary);
    box-shadow: 0 8px 40px rgba(124, 58, 237, 0.12);
    transform: translateY(-2px);
}

.competition-entry--upcoming {
    opacity: 0.7;
}

.competition-entry-left {
    display: flex;
    align-items: center;
    gap: 2rem;
    flex: 1;
}

.competition-flag-wrap {
    font-size: 2.5rem;
    line-height: 1;
    flex-shrink: 0;
}

.competition-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.competition-status {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-pill);
    display: inline-block;
    width: fit-content;
}

.competition-status--open {
    background: var(--primary-soft);
    color: var(--primary);
    border: 1px solid var(--border-accent);
}

.competition-status--upcoming {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.competition-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
}

.competition-context {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 400;
    margin: 0;
}

.competition-details {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.competition-notice {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.notice-badge {
    font-size: 0.72rem;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    font-weight: 500;
    letter-spacing: 0.02em;
}

.competition-entry-right {
    flex-shrink: 0;
}

/* ===========================================
   About Section
   =========================================== */
.about-section {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* ===========================================
   Countdown (unused but kept)
   =========================================== */
.countdown-container { margin: 3rem 0 2rem; }
.countdown { display: flex; gap: 2rem; justify-content: center; align-items: center; flex-wrap: wrap; }
.countdown-item { display: flex; flex-direction: column; align-items: center; min-width: 80px; }
.countdown-number {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    color: var(--text);
    line-height: 1;
    margin-bottom: 0.5rem;
}
.countdown-label { font-size: 0.9rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1rem; font-weight: 600; }
.countdown-text { text-align: center; color: var(--text-muted); font-size: 1.1rem; margin-top: 1rem; font-weight: 500; }

/* ===========================================
   Responsive
   =========================================== */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .format-card::after {
        content: '↓';
        right: 50%;
        transform: translateX(50%);
        top: auto;
        bottom: -2.5rem;
    }

    .event-details {
        flex-direction: column;
        gap: 1rem;
    }

    .prize-tiers {
        flex-direction: column;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .competition-entry {
        flex-direction: column;
        align-items: flex-start;
    }

    .competition-entry-right {
        width: 100%;
    }

    .competition-entry-right .btn {
        width: 100%;
        text-align: center;
    }
}