/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Colors */
    --primary: #1a1a1a;
    --primary-dark: #000000;
    --accent: #f97316;
    --success: #10b981;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    
    /* Typography */
    --font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --text-sm: 14px;
    --text-base: 16px;
    --text-lg: 18px;
    --text-xl: 20px;
    --text-2xl: 24px;
    --text-3xl: 30px;
    --text-4xl: 36px;
    --text-5xl: 48px;
    
    /* Spacing */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 32px;
    --space-xl: 48px;
    --space-2xl: 64px;
    --space-3xl: 96px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
    overflow-x: hidden;
}

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-lg);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--space-xl);
    }
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

.nav-brand .brand-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
    color: var(--gray-900);
    font-weight: 700;
    font-size: var(--text-lg);
}

.brand-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
    max-width: 120px;
}

.footer-logo {
    height: 28px;
}

.nav-menu {
    display: none;
    gap: var(--space-lg);
}

.nav-link {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

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

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

@media (min-width: 768px) {
    .nav {
        padding: 0 var(--space-lg);
    }
    
    .nav-menu {
        display: flex;
    }
    
    .nav-toggle {
        display: none;
    }
}

/* Mobile Navigation */
@media (max-width: 767px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        border-top: 1px solid var(--gray-200);
        padding: var(--space-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        padding: var(--space-sm);
        border-radius: 8px;
        text-align: center;
    }
    
    .nav-link:hover {
        background: var(--gray-100);
    }
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--space-3xl);
    background: 
        linear-gradient(135deg, rgba(26, 26, 26, 0.6) 0%, rgba(26, 26, 26, 0.3) 50%, rgba(255, 255, 255, 0.9) 100%),
        url('ai-saengche-insig-gisul-jimun-saibeo-boan.jpg'),
        linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-size: cover, cover, 100% 100%;
    background-position: center center, center center, center;
    background-repeat: no-repeat;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

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

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    opacity: 0.7;
    transition: var(--transition);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg, 
        rgba(26, 26, 26, 0.5) 0%, 
        rgba(26, 26, 26, 0.2) 50%,
        rgba(255, 255, 255, 0.8) 100%
    );
    z-index: 2;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-sm);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    align-items: center;
    position: relative;
    z-index: 3;
}

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

.hero-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--white);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7), 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--white);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6), 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    align-items: center;
}

.hero-visual {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.hero-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-xl);
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 0.98);
}

.card-icon {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-sm);
}

.hero-card h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--gray-900);
}

.hero-card p {
    color: var(--gray-600);
    font-size: var(--text-sm);
}

@media (min-width: 768px) {
    .hero-container {
        padding: 0 var(--space-lg);
        grid-template-columns: 1fr 1fr;
        text-align: left;
    }
    
    .hero-content {
        text-align: left;
    }
    
    .hero-title {
        font-size: var(--text-5xl);
    }
    
    .hero-subtitle {
        margin-left: 0;
        margin-right: 0;
    }
    
    .hero-buttons {
        flex-direction: row;
        justify-content: flex-start;
    }
    
    .hero-bg-image {
        opacity: 0.5;
    }
}

/* 이미지 로딩 실패 시 백업 */
.hero-bg-image:error {
    display: none;
}

/* 고성능 디바이스에서 더 높은 투명도 */
@media (min-resolution: 2dppx) {
    .hero-bg-image {
        opacity: 0.6;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px var(--space-lg);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: var(--text-base);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    min-height: 48px;
    gap: var(--space-xs);
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--gray-300);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* Section Styles */
section {
    padding: var(--space-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--gray-900);
}

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

/* Tools Section */
.tools {
    background: var(--gray-50);
}

.tools-controls {
    margin-bottom: var(--space-xl);
}

.search-box {
    position: relative;
    margin-bottom: var(--space-md);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.search-input {
    width: 100%;
    padding: 12px 50px 12px var(--space-sm);
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: var(--text-base);
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 26, 26, 0.1);
}

.search-icon {
    position: absolute;
    right: var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-500);
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    justify-content: center;
}

.tab-btn {
    padding: 10px var(--space-sm);
    border: 1px solid var(--gray-300);
    background: var(--white);
    border-radius: 24px;
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
}

.tool-card {
    background: var(--white);
    padding: var(--space-md);
    border-radius: 12px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-color: var(--primary);
}

.tool-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
}

.tool-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tool-logo {
    font-size: var(--text-2xl);
}

.tool-name {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.favorite-btn {
    background: none;
    border: none;
    font-size: var(--text-lg);
    cursor: pointer;
    color: var(--gray-400);
    transition: var(--transition);
}

.favorite-btn.active {
    color: #ef4444;
}

.tool-description {
    color: var(--gray-600);
    margin-bottom: var(--space-sm);
    font-size: var(--text-sm);
}

.tool-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tool-price {
    font-size: var(--text-sm);
    font-weight: 500;
    padding: 4px 8px;
    border-radius: 4px;
    background: var(--gray-100);
    color: var(--gray-700);
}

.tool-price.free {
    background: #dcfce7;
    color: #166534;
}

.tool-price.freemium {
    background: #fef3c7;
    color: #92400e;
}

.tool-price.paid {
    background: #fce7f3;
    color: #be185d;
}

.tool-link {
    color: var(--primary);
    font-size: var(--text-sm);
    font-weight: 500;
}

.hot-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--accent);
    color: var(--white);
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
}

.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-3xl) var(--space-md);
    color: var(--gray-600);
}

.no-results h3 {
    margin-bottom: var(--space-sm);
    color: var(--gray-700);
}

/* Workflows Section */
.workflow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-lg);
}

.workflow-card {
    background: var(--white);
    padding: var(--space-lg);
    border-radius: 16px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    cursor: pointer;
}

.workflow-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.workflow-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.workflow-icon {
    font-size: var(--text-3xl);
    margin-top: 4px;
}

.workflow-meta h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--gray-900);
}

.workflow-info {
    display: flex;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--gray-600);
}

.workflow-description {
    color: var(--gray-600);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.workflow-tools {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.tool {
    font-size: var(--text-sm);
    font-weight: 500;
    padding: 4px 8px;
    background: var(--gray-100);
    border-radius: 4px;
    color: var(--gray-700);
}

.arrow {
    color: var(--gray-400);
    font-size: var(--text-sm);
}

/* Guide Section */
.guide {
    background: var(--gray-50);
}

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

.quick-start {
    margin-bottom: var(--space-2xl);
}

.quick-start h3 {
    font-size: var(--text-2xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--space-xl);
    color: var(--gray-900);
}

.start-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.step-card {
    background: var(--white);
    padding: var(--space-lg);
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    font-weight: 700;
    margin: 0 auto var(--space-sm);
}

.step-card h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--gray-900);
}

.step-card p {
    color: var(--gray-600);
    font-size: var(--text-sm);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.tips-card {
    background: var(--white);
    padding: var(--space-lg);
    border-radius: 12px;
    border: 1px solid var(--gray-200);
}

.tips-card h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--gray-900);
}

.tips-card ul {
    list-style: none;
}

.tips-card li {
    padding: var(--space-xs) 0;
    color: var(--gray-600);
    font-size: var(--text-sm);
    border-bottom: 1px solid var(--gray-100);
}

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

.tips-card li::before {
    content: '•';
    color: var(--primary);
    margin-right: var(--space-xs);
}

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

.faq-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    margin-bottom: var(--space-sm);
    overflow: hidden;
}

.faq-question {
    padding: var(--space-md);
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--gray-50);
}

.faq-answer {
    padding: 0 var(--space-md) var(--space-md);
    color: var(--gray-600);
    line-height: 1.6;
    display: none;
}

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

.faq-toggle {
    transition: var(--transition);
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--space-2xl) 0 var(--space-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.footer-brand .brand-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
    color: var(--white);
    font-weight: 700;
    font-size: var(--text-lg);
    margin-bottom: var(--space-sm);
}

.footer-brand p {
    color: var(--gray-400);
    font-size: var(--text-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-lg);
}

.link-group h4 {
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--white);
}

.link-group a {
    display: block;
    color: var(--gray-400);
    text-decoration: none;
    font-size: var(--text-sm);
    margin-bottom: var(--space-xs);
    transition: var(--transition);
}

.link-group a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--gray-700);
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: var(--text-sm);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 2fr 1fr;
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--space-md);
    right: var(--space-md);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    border: none;
    cursor: pointer;
    font-size: var(--text-lg);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.modal-content {
    background: var(--white);
    border-radius: 16px;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-md);
    font-size: var(--text-2xl);
    cursor: pointer;
    color: var(--gray-500);
    transition: var(--transition);
    background: none;
    border: none;
    z-index: 10;
}

.modal-close:hover {
    color: var(--gray-900);
}

.modal-body {
    padding: var(--space-xl);
}

/* Workflow Modal Styles */
.workflow-modal-content {
    padding-top: var(--space-lg);
}

.workflow-modal-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.workflow-modal-icon {
    font-size: var(--text-4xl);
}

.workflow-modal-header h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-xs);
    color: var(--gray-900);
}

.workflow-modal-meta {
    display: flex;
    gap: var(--space-md);
    font-size: var(--text-sm);
    color: var(--gray-600);
}

.workflow-modal-description {
    font-size: var(--text-base);
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.workflow-steps h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--gray-900);
}

.workflow-step {
    background: var(--gray-50);
    border-radius: 12px;
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    border-left: 4px solid var(--primary);
}

.step-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.step-num {
    background: var(--primary);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--text-sm);
    font-weight: 600;
}

.step-tool {
    font-weight: 600;
    color: var(--gray-700);
    font-size: var(--text-sm);
}

.step-task {
    font-size: var(--text-base);
    color: var(--gray-700);
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

.step-tip {
    font-size: var(--text-sm);
    color: var(--gray-600);
    font-style: italic;
}

.workflow-actions {
    margin-top: var(--space-xl);
    text-align: center;
}

/* Loading States */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--space-xl);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Error States */
.error-state {
    text-align: center;
    padding: var(--space-xl);
    color: var(--gray-600);
}

.error-state h3 {
    margin-bottom: var(--space-sm);
    color: var(--gray-700);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Responsive Design */
@media (max-width: 767px) {
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .section-title {
        font-size: var(--text-2xl);
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .workflow-grid {
        grid-template-columns: 1fr;
    }
    
    .start-steps {
        grid-template-columns: 1fr;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .category-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: var(--space-xs);
    }
    
    .workflow-tools {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .workflow-modal-header {
        flex-direction: column;
        text-align: center;
    }
    
    .step-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }
}

/* Touch devices */
@media (hover: none) {
    .tool-card:hover,
    .workflow-card:hover,
    .step-card:hover {
        transform: none;
    }
    
    .btn-primary:hover,
    .btn-secondary:hover {
        transform: none;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --gray-600: #000000;
        --gray-500: #333333;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}