/*
Theme Name: Suno Studio Pro
Theme URI: http://example.com/suno-studio-pro
Author: User
Author URI: http://example.com
Description: Professional WordPress theme for Suno Studio with customizable structure
Version: 1.1
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: suno-studio-pro
*/
/* ===== CSS Variables ===== */
:root {
    --color-primary: #6366f1;
    --color-secondary: #8b5cf6;
    --color-accent: #ec4899;
    --color-bg-dark: #0f172a;
    --color-bg-darker: #020617;
    --color-bg-light: #1e293b;
    --color-text-primary: #f8fafc;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --border-radius: 1rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--color-bg-darker);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Animated Background ===== */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.gradient-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.sphere-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-primary), transparent);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.sphere-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--color-secondary), transparent);
    bottom: -150px;
    right: -150px;
    animation-delay: 7s;
}

.sphere-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-accent), transparent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 14s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(50px, -50px) scale(1.1);
    }

    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 900;
    text-decoration: none;
    color: var(--color-text-primary);
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transition: var(--transition);
}

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

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



/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-xl) 0;
    margin-top: 80px;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.5)), url("assets/images/스크린샷 2026-01-10 오전 8.35.08.png");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease infinite;
    background-size: 200% 200%;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.25rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-download {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    color: white;
    width: 100%;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.3);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.4);
}

/* ===== Hero Stats ===== */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== Sections ===== */
.features,
.download,
.about {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
}

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

/* ===== Features Grid ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ===== Audio Player ===== */
.audio-player-container {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.feature-audio {
    width: 100%;
    height: 40px;
    margin-bottom: 0.5rem;
    border-radius: 0.25rem;
}

.feature-audio::-webkit-media-controls-panel {
    background: linear-gradient(to right, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
}

.audio-caption {
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin: 0;
}

.audio-caption strong {
    color: var(--color-primary);
}

/* ===== Video Demo Section ===== */
.video-demo {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.3) 100%);
}

.video-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.video-container {
    position: relative;
    width: 100%;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: rgba(0, 0, 0, 0.5);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
}

.video-container video::-webkit-media-controls-panel {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.9));
}

.video-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.info-item:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--color-primary);
    transform: translateX(5px);
}

.info-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.info-item h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--color-text-primary);
}

.info-item p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* ===== Screenshot Gallery ===== */
.gallery {
    padding: var(--spacing-xl) 0;
    background: rgba(0, 0, 0, 0.2);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
}

.gallery-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.gallery-item:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--color-primary);
    box-shadow: 0 20px 50px rgba(99, 102, 241, 0.3);
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-sm);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

.gallery-caption h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--color-text-primary);
}

.gallery-caption p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin: 0;
}

/* ===== Workflow Infographic Section ===== */
.workflow-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.1) 100%);
}

.workflow-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.workflow-image {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.workflow-image:hover {
    transform: scale(1.02);
    box-shadow: 0 25px 70px rgba(99, 102, 241, 0.3);
}

.workflow-description {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.workflow-step {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.workflow-step:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--color-primary);
    transform: translateX(5px);
}

.step-number {
    flex-shrink: 0;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.step-content h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.step-content p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* ===== Hero Badge ===== */
.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 2rem;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero-badge span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* ===== Vision Section Styles ===== */
.vision-intro {
    font-size: 1.25rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.vision-pillars {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.vision-pillars h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.pillar-item {
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    transition: var(--transition);
}

.pillar-item:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-3px);
}

.pillar-item h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.pillar-item p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.6;
}

.copyright-notice {
    font-style: italic;
    color: var(--color-text-muted);
    margin-top: 0.5rem;
}

.creator-info {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.creator-info p {
    margin: 0.25rem 0;
    font-size: 0.875rem;
}

.creator-info a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

.creator-info a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

.footer-link {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: var(--transition);
}

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

/* ===== Download Cards ===== */
.download-content {
    max-width: 900px;
    margin: 0 auto;
}

.download-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.download-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.download-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    backdrop-filter: blur(10px);
    text-align: center;
    transition: var(--transition);
}

.download-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-secondary);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
}

.platform-icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.download-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.version {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.file-size {
    color: var(--color-text-secondary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.requirements {
    text-align: left;
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.03);
    border-radius: 0.5rem;
}

.requirements p {
    margin-bottom: var(--spacing-xs);
}

.requirements ul {
    list-style: none;
    padding-left: var(--spacing-sm);
}

.requirements li {
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
    padding-left: 1rem;
    position: relative;
}

.requirements li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* ===== Getting Started Guide Section ===== */
.guide-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0.25) 100%);
}

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

.guide-article {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
}

.guide-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.guide-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.guide-intro {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.guide-overview-image {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.overview-diagram {
    width: 100%;
    max-width: 800px;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.overview-diagram:hover {
    transform: scale(1.02);
    box-shadow: 0 25px 70px rgba(99, 102, 241, 0.3);
}

.guide-section-content {
    margin-bottom: var(--spacing-xl);
}

.guide-section-content h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    padding-left: var(--spacing-sm);
    border-left: 4px solid var(--color-primary);
}

.guide-subsection {
    margin-bottom: var(--spacing-md);
}

.guide-subsection h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.feature-area {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    border-left: 3px solid var(--color-secondary);
}

.feature-area h5 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.feature-area p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

.transition-text {
    font-style: italic;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: rgba(99, 102, 241, 0.1);
    border-radius: 0.5rem;
    border-left: 3px solid var(--color-primary);
}

.step-box {
    position: relative;
    padding: var(--spacing-md);
    padding-left: 4rem;
    margin-bottom: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.step-box:hover {
    background: rgba(99, 102, 241, 0.08);
    border-color: var(--color-primary);
    transform: translateX(5px);
}

.step-number-badge {
    position: absolute;
    left: var(--spacing-sm);
    top: var(--spacing-md);
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.step-box h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.step-box p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.option-list {
    list-style: none;
    padding-left: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
}

.option-list li {
    padding: 0.5rem;
    margin-bottom: 0.25rem;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.option-list li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 0.75rem;
}

.option-note {
    font-size: 0.9375rem;
    font-style: italic;
    color: var(--color-text-muted);
    margin-top: 0.5rem;
}

.example-box {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(139, 92, 246, 0.1);
    border-radius: 0.5rem;
    border-left: 3px solid var(--color-secondary);
    font-family: 'Courier New', monospace;
}

.example-box strong {
    color: var(--color-secondary);
}

.method-box {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    transition: var(--transition);
}

.method-box:hover {
    background: rgba(99, 102, 241, 0.1);
}

.method-box h5 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.method-box p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

.process-list {
    counter-reset: process-counter;
    list-style: none;
    padding-left: 0;
}

.process-list li {
    counter-increment: process-counter;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    position: relative;
    padding-left: 3rem;
}

.process-list li::before {
    content: counter(process-counter);
    position: absolute;
    left: var(--spacing-sm);
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    font-weight: 700;
    border-radius: 50%;
}

.process-list li strong {
    color: var(--color-primary);
}

.tip-box {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tip-box.advanced {
    border-color: var(--color-accent);
    background: rgba(236, 72, 153, 0.05);
}

.tip-box h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.tip-box p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.mixer-features {
    list-style: none;
    padding-left: 0;
    margin: var(--spacing-sm) 0;
}

.mixer-features li {
    padding: 0.5rem;
    color: var(--color-text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mixer-features li:last-child {
    border-bottom: none;
}

.mixer-features li strong {
    color: var(--color-primary);
    margin-right: 0.5rem;
}

.conclusion {
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(99, 102, 241, 0.05);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-primary);
}

.workflow-summary {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin: var(--sp acing-md) 0;
    flex-wrap: wrap;
}

.summary-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    min-width: 120px;
}

.summary-number {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 0.5rem;
}

.arrow {
    font-size: 1.5rem;
    color: var(--color-accent);
    font-weight: 700;
}

.final-message {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: var(--spacing-md);
    line-height: 1.8;
}



/* ===== About Section ===== */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-highlights {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--border-radius);
    font-weight: 600;
}

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

/* ===== PDF Document Section ===== */
.pdf-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.3) 100%);
}

.pdf-container {
    max-width: 1000px;
    margin: 0 auto;
}

.pdf-viewer-wrapper {
    position: relative;
    width: 100%;
    height: 800px;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    margin-bottom: var(--spacing-md);
}

.pdf-iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.pdf-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.pdf-actions .btn {
    min-width: 200px;
}

/* Mobile responsive for PDF viewer */
@media (max-width: 768px) {
    .pdf-viewer-wrapper {
        height: 600px;
    }

    .pdf-actions {
        flex-direction: column;
    }

    .pdf-actions .btn {
        width: 100%;
    }
}

/* ===== Footer ===== */
.footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

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

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer-section h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.footer-section p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

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

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

.version-info {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

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

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-sm);
    }

    .hero {
        padding: var(--spacing-lg) 0;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-stats {
        gap: var(--spacing-md);
    }

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

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

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

    .video-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .video-info {
        order: -1;
        /* Move info above video on mobile */
    }

    .workflow-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .workflow-description {
        order: -1;
        /* Move steps above image on mobile */
    }

    .download-cards {
        grid-template-columns: 1fr;
    }

    .about-highlights {
        flex-direction: column;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .nav-links a {
        font-size: 0.875rem;
    }
}