/*
Theme Name: Flavor Bitmax
Description: 비트맥스 전용 테마 - 다크모드, 매거진 스타일, 슬라이드 업 애니메이션
Version: 1.0
Author: Goksan
*/

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+KR:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --primary-light: #60A5FA;
    --bg-dark: #0F172A;
    --bg-darker: #020617;
    --bg-card: #1E293B;
    --bg-card-hover: #334155;
    --text-white: #F8FAFC;
    --text-gray: #94A3B8;
    --text-light: #CBD5E1;
    --border-dark: #334155;
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 40px rgba(59, 130, 246, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'IBM Plex Sans KR', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-white);
    background: var(--bg-dark);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
}

/* Slide Up Animation */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-up {
    animation: slideUp 0.6s ease-out forwards;
}

.slide-up-delay-1 { animation-delay: 0.1s; opacity: 0; }
.slide-up-delay-2 { animation-delay: 0.2s; opacity: 0; }
.slide-up-delay-3 { animation-delay: 0.3s; opacity: 0; }
.slide-up-delay-4 { animation-delay: 0.4s; opacity: 0; }

/* Header - Side Drawer Style */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-dark);
}

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

.site-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-white);
    transition: all 0.3s ease;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-nav a {
    font-weight: 500;
    color: var(--text-gray);
    position: relative;
    padding: 0.5rem 0;
}

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

/* Side Drawer */
.side-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 320px;
    height: 100vh;
    background: var(--bg-darker);
    z-index: 1002;
    padding: 6rem 2rem 2rem;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 1px solid var(--border-dark);
}

.side-drawer.open {
    right: 0;
}

.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.drawer-overlay.open {
    opacity: 1;
    visibility: visible;
}

.drawer-nav ul {
    list-style: none;
}

.drawer-nav a {
    display: block;
    padding: 1rem 0;
    font-size: 1.125rem;
    color: var(--text-gray);
    border-bottom: 1px solid var(--border-dark);
}

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

.drawer-cta {
    margin-top: 2rem;
}

/* Outline Buttons */
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: transparent;
    color: var(--primary);
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid var(--primary);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--bg-dark);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.4);
}

.btn-outline-white {
    color: var(--text-white);
    border-color: var(--text-white);
}

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

.btn-filled {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--primary);
    color: var(--bg-dark);
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid var(--primary);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-filled:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.4);
}

/* Flat Card + Hover Shadow */
.flat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.flat-card:hover {
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

/* Hero Section - Magazine Style */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 70% 30%, rgba(59, 130, 246, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    z-index: 2;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.hero-stat {
    text-align: center;
}

.hero-stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.hero-stat-label {
    font-size: 0.875rem;
    color: var(--text-gray);
    margin-top: 0.5rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-white);
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    border-radius: 24px;
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow-card);
}

.hero-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2.5rem;
}

.hero-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-gray);
    margin-bottom: 0.5rem;
}

.hero-card-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
}

/* Section Common */
.section {
    padding: 6rem 2rem;
    position: relative;
}

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

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid var(--primary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section - Magazine Grid */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-white);
}

.about-content p {
    font-size: 1.125rem;
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-points {
    list-style: none;
    margin-bottom: 2rem;
}

.about-points li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    font-weight: 500;
    color: var(--text-light);
}

.about-points li .icon {
    width: 28px;
    height: 28px;
    background: var(--primary);
    color: var(--bg-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    flex-shrink: 0;
}

/* How It Works - Steps */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.step-card {
    text-align: center;
    padding: 2rem;
}

.step-number {
    width: 70px;
    height: 70px;
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.75rem;
    font-weight: 700;
    transition: all 0.3s ease;
}

.step-card:hover .step-number {
    background: var(--primary);
    color: var(--bg-dark);
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-white);
}

.step-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* Features Grid - Magazine Layout */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2.5rem;
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: transparent;
    border: 2px solid var(--primary);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    background: var(--primary);
    border-color: var(--primary);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-white);
}

.feature-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.benefit-card {
    padding: 2.5rem;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background: transparent;
    border: 2px solid var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.benefit-card:hover .benefit-icon {
    background: var(--primary);
}

.benefit-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-white);
}

.benefit-content p {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.benefit-stat {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

/* Stats Section */
.stats-section {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 5rem 2rem;
}

.stats-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
    color: white;
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.testimonial-card {
    padding: 2rem;
}

.testimonial-stars {
    color: #FBBF24;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial-quote {
    font-size: 1.05rem;
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
}

.testimonial-info h4 {
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-white);
}

.testimonial-info p {
    font-size: 0.875rem;
    color: var(--text-gray);
    margin: 0;
}

/* FAQ Section */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.faq-question {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-white);
}

.faq-icon {
    width: 30px;
    height: 30px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    background: var(--primary);
    color: var(--bg-dark);
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 2rem 1.5rem;
    color: var(--text-gray);
    line-height: 1.8;
}

/* CTA Section */
.cta-section {
    padding: 6rem 2rem;
    text-align: center;
}

.cta-card {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    border-radius: 30px;
    padding: 4rem 3rem;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.cta-card h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-white);
    position: relative;
    z-index: 1;
}

.cta-card p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: var(--text-gray);
    position: relative;
    z-index: 1;
}

/* Footer */
.site-footer {
    background: var(--bg-darker);
    color: var(--text-white);
    padding: 4rem 2rem 2rem;
    border-top: 1px solid var(--border-dark);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary);
}

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

.footer-links h4 {
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-white);
}

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

.footer-links a {
    color: var(--text-gray);
    display: block;
    padding: 0.4rem 0;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid var(--border-dark);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-gray);
    font-size: 0.875rem;
}

.footer-legal a {
    color: var(--text-gray);
    margin-left: 1.5rem;
}

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

/* Blog & Page Styles */
.page-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 8rem 2rem 4rem;
    text-align: center;
    color: white;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
}

.page-content {
    padding: 4rem 2rem;
    background: var(--bg-dark);
}

.page-container {
    max-width: 800px;
    margin: 0 auto;
}

.page-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 2rem 0 1rem;
    color: var(--text-white);
}

.page-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--text-gray);
}

.page-content ul, .page-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.page-content li {
    margin-bottom: 0.75rem;
    color: var(--text-gray);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.blog-card {
    padding: 2rem;
}

.blog-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.blog-card h3 a {
    color: var(--text-white);
}

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

.blog-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.blog-card .date {
    font-size: 0.875rem;
    color: var(--text-gray);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-container,
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

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

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

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

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

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

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

    .menu-toggle {
        display: flex;
    }

    .hero-section {
        padding: 6rem 1.5rem 3rem;
    }

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

    .hero-stats {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .section {
        padding: 4rem 1.5rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

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

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }

    .stat-value {
        font-size: 2rem;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
    }

    .footer-legal a {
        margin: 0 0.75rem;
    }

    .btn-outline, .btn-filled {
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }

    .cta-card {
        padding: 3rem 2rem;
    }

    .cta-card h2 {
        font-size: 1.75rem;
    }
}