/*
Theme Name: Flavor BingX
Description: 빙엑스 거래소 - Pretendard, Purple, Minimal Line Cards, SVG Pattern
Version: 1.0
*/

@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');

:root {
    --primary: #8B5CF6;
    --primary-dark: #7C3AED;
    --primary-light: #A78BFA;
    --bg-white: #ffffff;
    --bg-light: #FAFAFB;
    --bg-section: #F5F3FF;
    --text-dark: #1a1a1a;
    --text-muted: #6B7280;
    --text-light: #9CA3AF;
    --border-color: #E5E7EB;
    --border-primary: #8B5CF6;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(139, 92, 246, 0.15);
    --shadow-btn: 0 4px 14px rgba(139, 92, 246, 0.4);
}

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

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-white);
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
}

/* SVG Pattern Background */
.pattern-bg {
    background-color: var(--bg-white);
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%238B5CF6' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* Header - Fixed Solid */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.site-logo:hover {
    color: var(--primary-dark);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    margin: 5px 0;
    transition: all 0.3s;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 35px;
}

.main-nav a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.main-nav a:hover {
    color: var(--primary);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
}

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

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, rgba(124, 58, 237, 0.1) 100%);
    z-index: 0;
}

.hero-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.2;
    letter-spacing: -1px;
}

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

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 15px;
    font-weight: 600;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Fill + Shadow Button */
.btn-primary {
    display: inline-block;
    padding: 16px 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    box-shadow: var(--shadow-btn);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.5);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.hero-visual {
    margin-top: 60px;
}

.hero-illustration {
    font-size: 120px;
    animation: antiGravityFloat 6s ease-in-out infinite;
}

@keyframes antiGravityFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-15px) rotate(2deg); }
    50% { transform: translateY(-8px) rotate(-1deg); }
    75% { transform: translateY(-20px) rotate(1deg); }
}

/* Floating Bubbles */
.floating-bubbles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    animation: bubbleFloat 10s ease-in-out infinite;
}

.bubble:nth-child(1) { width: 80px; height: 80px; top: 20%; left: 10%; animation-delay: 0s; }
.bubble:nth-child(2) { width: 120px; height: 120px; top: 60%; left: 80%; animation-delay: 2s; }
.bubble:nth-child(3) { width: 60px; height: 60px; top: 40%; left: 70%; animation-delay: 4s; }
.bubble:nth-child(4) { width: 100px; height: 100px; top: 80%; left: 20%; animation-delay: 1s; }
.bubble:nth-child(5) { width: 50px; height: 50px; top: 10%; left: 60%; animation-delay: 3s; }

@keyframes bubbleFloat {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.5; }
    33% { transform: translate(30px, -40px) scale(1.1); opacity: 0.7; }
    66% { transform: translate(-20px, -60px) scale(0.9); opacity: 0.4; }
}

/* Sections */
.section {
    padding: 100px 20px;
    text-align: center;
}

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

.section-pattern {
    background-color: var(--bg-light);
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%238B5CF6' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.section-purple {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
    letter-spacing: -0.5px;
}

.section-purple .section-title {
    color: #fff;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-purple .section-subtitle {
    color: rgba(255, 255, 255, 0.85);
}

/* Minimal Line Cards */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.line-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 35px 25px;
    transition: all 0.3s ease;
    position: relative;
}

.line-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.line-card .card-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 20px;
    animation: antiGravityFloat 5s ease-in-out infinite;
}

.line-card:nth-child(2) .card-icon { animation-delay: 0.5s; }
.line-card:nth-child(3) .card-icon { animation-delay: 1s; }
.line-card:nth-child(4) .card-icon { animation-delay: 1.5s; }
.line-card:nth-child(5) .card-icon { animation-delay: 2s; }
.line-card:nth-child(6) .card-icon { animation-delay: 2.5s; }

.line-card h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 600;
}

.line-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Steps */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    position: relative;
}

.steps-grid::before {
    content: '';
    position: absolute;
    top: 45px;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, var(--border-color), var(--primary), var(--border-color));
    z-index: 0;
}

.step-card {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    border-radius: 50%;
    box-shadow: var(--shadow-btn);
    animation: antiGravityFloat 6s ease-in-out infinite;
}

.step-card:nth-child(2) .step-number { animation-delay: 0.5s; }
.step-card:nth-child(3) .step-number { animation-delay: 1s; }

.step-card h3 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 600;
}

.step-card p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 10px;
    letter-spacing: -1px;
}

.stat-label {
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 500;
}

/* Testimonials */
.testimonial-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 35px;
    text-align: left;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.testimonial-stars {
    color: #FBBF24;
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.testimonial-text {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 25px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    border-radius: 50%;
}

.author-info h4 {
    color: var(--text-dark);
    font-size: 1rem;
    margin-bottom: 3px;
    font-weight: 600;
}

.author-info span {
    color: var(--text-light);
    font-size: 0.85rem;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.faq-item {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s;
}

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

.faq-question {
    padding: 22px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background 0.3s;
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-question h3 {
    font-size: 1.05rem;
    color: var(--text-dark);
    font-weight: 500;
}

.faq-toggle {
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 300;
    transition: transform 0.3s;
}

.faq-answer {
    padding: 0 25px 22px;
    display: none;
}

.faq-answer p {
    color: var(--text-muted);
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    display: block;
}

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

/* CTA Section */
.cta-section {
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}

.cta-text {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 35px;
}

.btn-white {
    display: inline-block;
    padding: 16px 45px;
    background: #fff;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.btn-white:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Footer */
.site-footer {
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    padding: 60px 20px 30px;
}

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

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 15px;
    font-weight: 700;
}

.footer-brand p {
    color: var(--text-muted);
    line-height: 1.7;
}

.footer-links h4 {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-weight: 600;
}

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

.footer-links li {
    margin-bottom: 12px;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Page Content */
.page-content {
    padding: 140px 20px 80px;
    min-height: 70vh;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.page-content h1 {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 30px;
    font-weight: 700;
}

.entry-content {
    color: var(--text-muted);
    line-height: 1.9;
}

.entry-content p {
    margin-bottom: 20px;
}

.entry-content h2, .entry-content h3 {
    color: var(--text-dark);
    margin: 35px 0 20px;
}

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.blog-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s ease;
}

.blog-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.blog-card h3 a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
    transition: color 0.3s;
}

.blog-card h3 a:hover {
    color: var(--primary);
}

.blog-card p {
    color: var(--text-muted);
    margin-top: 15px;
    line-height: 1.7;
}

/* Responsive */
@media (max-width: 1024px) {
    .grid-3, .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4, .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps-grid::before {
        display: none;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .main-nav {
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        display: none;
        box-shadow: var(--shadow-md);
    }

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

    .main-nav ul {
        flex-direction: column;
        gap: 15px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .grid-3, .grid-4, .steps-grid, .stats-grid {
        grid-template-columns: 1fr;
    }

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

    .hero-illustration {
        font-size: 80px;
    }
}