/*
Theme Name: SBDF Theme
Theme URI: https://seoulblues.com
Author: Seoul Blues Dance Festival
Author URI: https://seoulblues.com
Description: Custom theme for Seoul Blues Dance Festival - A blues dance event in Seoul, Korea
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: sbdf-theme
Tags: blues, dance, festival, event, dark, responsive

Seoul Blues Dance Festival 2026
*/

/* ========================================
   CSS Variables / Design Tokens
   ======================================== */
:root {
    /* Colors */
    --color-bg-dark: #231111;
    --color-bg-darker: #1a0d0d;
    --color-bg-card: rgba(35, 17, 17, 0.9);
    --color-text-light: #E8DFDF;
    --color-text-muted: #b8a8a8;
    --color-accent: #C97D7D;
    --color-accent-hover: #d99a9a;
    --color-accent-gold: #D4A574;
    --color-success: #7DC97D;
    --color-warning: #C9B77D;

    /* Typography */
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'DIN Next', 'Avenir', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Container */
    --container-max: 1200px;
    --container-narrow: 800px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 50%;
}

/* ========================================
   Reset & Base
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-hover);
}

/* ========================================
   Layout
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: var(--spacing-xl) 0;
}

.section--dark {
    background-color: var(--color-bg-darker);
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(to bottom, rgba(35, 17, 17, 0.95), rgba(35, 17, 17, 0.8));
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) 0;
    transition: all var(--transition-normal);
}

.site-header.scrolled {
    background: rgba(35, 17, 17, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

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

.site-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.site-logo span {
    color: var(--color-accent);
}

.site-logo--custom {
    display: inline-flex;
    align-items: center;
}

.site-logo--custom .custom-logo {
    display: block;
    width: auto;
    max-height: 56px;
}

/* Main Navigation */
.main-nav > ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.main-nav a {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.main-nav > ul > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-normal);
}

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

/* Dropdown sub-menus */
.main-nav li {
    position: relative;
}

.main-nav .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: var(--color-bg-dark);
    border: 1px solid rgba(201, 125, 125, 0.2);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) 0;
    list-style: none;
    z-index: 100;
    flex-direction: column;
    gap: 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.main-nav li:hover > .sub-menu {
    display: flex;
}

.main-nav .sub-menu a {
    display: block;
    padding: 8px 20px;
    font-size: 0.8rem;
    white-space: nowrap;
}

.main-nav .sub-menu a:hover {
    background: rgba(201, 125, 125, 0.1);
    color: var(--color-accent);
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

/* Reset any Polylang <ul><li> output */
.lang-switcher ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    margin: 0;
    padding: 0;
}

.lang-switcher li {
    list-style: none;
}

.lang-switcher a {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    transition: all var(--transition-fast);
}

.lang-switcher a:hover {
    background: rgba(201, 125, 125, 0.2);
    color: var(--color-accent);
}

.lang-switcher a.active {
    background: var(--color-accent);
    color: var(--color-bg-dark);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-light);
    margin: 5px 0;
    transition: var(--transition-fast);
}

@media (max-width: 968px) {
    .mobile-menu-toggle {
        display: block;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg-dark);
        padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg);
        max-height: calc(100vh - 60px);
        overflow-y: auto;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    /* Show sub-menus inline on mobile */
    .main-nav .sub-menu {
        display: flex;
        position: static;
        background: transparent;
        border: none;
        box-shadow: none;
        padding: 0;
        padding-left: var(--spacing-md);
        min-width: unset;
        gap: var(--spacing-xs);
    }

    .main-nav .sub-menu a {
        padding: 4px 0;
        font-size: 0.8rem;
        color: var(--color-text-muted);
    }

    .main-nav .sub-menu a:hover {
        color: var(--color-accent);
        background: transparent;
    }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-bg img,
.hero-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-fallback {
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 20%, rgba(201, 125, 125, 0.35), transparent 45%),
        radial-gradient(circle at 80% 30%, rgba(212, 165, 116, 0.25), transparent 40%),
        linear-gradient(135deg, #2d1515 0%, #1a0d0d 60%, #140a0a 100%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom,
        rgba(35, 17, 17, 0.4) 0%,
        rgba(35, 17, 17, 0.6) 50%,
        rgba(35, 17, 17, 0.95) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: var(--spacing-md);
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 20px rgba(0, 0, 0, 0.5);
}

.hero-title span {
    color: var(--color-accent);
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 3vw, 2rem);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.2em;
}

.hero-date {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    color: var(--color-accent-gold);
    margin-bottom: var(--spacing-xs);
}

.hero-location {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

/* Countdown Timer */
.countdown {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.countdown-item {
    text-align: center;
}

.countdown-value {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--color-text-light);
    display: block;
}

.countdown-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.btn--primary {
    background: var(--color-accent);
    color: var(--color-bg-dark);
}

.btn--primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(201, 125, 125, 0.4);
}

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

.btn--secondary:hover {
    background: var(--color-text-light);
    color: var(--color-bg-dark);
}

.btn--large {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1.125rem;
}

.btn--gold {
    background: var(--color-accent-gold);
    color: var(--color-bg-dark);
}

.btn--gold:hover {
    background: #e0b584;
}

/* ========================================
   Cards
   ======================================== */
.card {
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.card-image {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.card-content {
    padding: var(--spacing-md);
}

.card-title {
    margin-bottom: var(--spacing-xs);
}

/* Instructor Card */
.instructor-card {
    text-align: center;
}

.instructor-card .card-image {
    aspect-ratio: 1;
    border-radius: var(--radius-full);
    width: 200px;
    height: 200px;
    margin: var(--spacing-md) auto;
    object-fit: cover;
    object-position: center center;
}

/* Instructor Detail Page */
.instructor-full {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.instructor-photo-wrapper {
    flex-shrink: 0;
    width: 300px;
}

.instructor-photo {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    object-position: center center;
    border-radius: var(--radius-md);
}

.instructor-details {
    flex: 1;
}

.instructor-bio {
    margin-top: var(--spacing-sm);
    line-height: 1.8;
}

.instructor-social {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.instructor-social a {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.instructor-social a:hover {
    color: var(--color-accent);
}

@media (max-width: 768px) {
    .instructor-full {
        flex-direction: column;
        align-items: center;
    }

    .instructor-photo-wrapper {
        width: 100%;
        max-width: 350px;
    }
}

.instructor-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.instructor-country {
    color: var(--color-accent);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ========================================
   Instructors Grid
   ======================================== */
.instructors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

/* ========================================
   Pass Cards (Registration)
   ======================================== */
.pass-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.pass-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
}

.pass-card:hover {
    border-color: var(--color-accent);
}

.pass-card--featured {
    border-color: var(--color-accent-gold);
    position: relative;
}

.pass-card--featured::before {
    content: 'BEST VALUE';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent-gold);
    color: var(--color-bg-dark);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
}

.pass-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.pass-price {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.pass-price small {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.pass-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.pass-features li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.pass-features li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: bold;
}

/* ========================================
   Venue Section
   ======================================== */
.venue-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

@media (max-width: 768px) {
    .venue-card {
        grid-template-columns: 1fr;
    }
}

.venue-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.venue-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.venue-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.venue-type {
    color: var(--color-accent);
    font-size: 0.875rem;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

/* ========================================
   Schedule
   ======================================== */
.schedule-tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.schedule-tab {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 2px solid var(--color-accent);
    color: var(--color-text-light);
    font-family: var(--font-heading);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.schedule-tab.active,
.schedule-tab:hover {
    background: var(--color-accent);
    color: var(--color-bg-dark);
}

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

.schedule-table th,
.schedule-table td {
    padding: var(--spacing-sm);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.schedule-table th {
    font-family: var(--font-heading);
    text-transform: uppercase;
    color: var(--color-accent);
}

/* ========================================
   Competition Section
   ======================================== */
.competition-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.competition-number {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.competition-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

/* ========================================
   FAQ Accordion
   ======================================== */
.faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md) 0;
    background: transparent;
    border: none;
    color: var(--color-text-light);
    font-family: var(--font-heading);
    font-size: 1.125rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    transition: transform var(--transition-fast);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding-bottom: var(--spacing-md);
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background: var(--color-bg-darker);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

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

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border-radius: var(--radius-full);
    color: var(--color-text-light);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-accent);
    color: var(--color-bg-dark);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 0.875rem;
}

/* ========================================
   Utility Classes
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-accent { color: var(--color-accent); }
.text-gold { color: var(--color-accent-gold); }
.text-muted { color: var(--color-text-muted); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.hidden { display: none; }

@media (max-width: 768px) {
    .hide-mobile { display: none; }
}

@media (min-width: 769px) {
    .hide-desktop { display: none; }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

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

.animate-pulse {
    animation: pulse 2s infinite;
}