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

:root {
    /* Colorful Color Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --purple-gradient: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    
    /* Vibrant Colors */
    --pink: #ff6b9d;
    --purple: #c44569;
    --blue: #3742fa;
    --cyan: #2ed573;
    --orange: #ffa726;
    --yellow: #ffd54f;
    
    /* Neutral Colors */
    --dark: #2c3e50;
    --light: #ecf0f1;
    --white: #ffffff;
    --gray: #7f8c8d;
    --light-gray: #f8f9fa;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Playfair Display', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.2);
    --shadow-colorful: 0 10px 30px rgba(102, 126, 234, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--dark);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--spacing-sm);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-logo i {
    font-size: 2rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    position: relative;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

.download-btn {
    background: var(--secondary-gradient);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-gradient);
    transition: all 0.3s ease;
}

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.8) 0%, rgba(240, 147, 251, 0.6) 100%);
}

.geometric-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 100px;
    height: 100px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 80px;
    height: 80px;
    top: 80%;
    left: 30%;
    animation-delay: 4s;
}

.shape-4 {
    width: 120px;
    height: 120px;
    top: 30%;
    right: 30%;
    animation-delay: 1s;
}

.shape-5 {
    width: 60px;
    height: 60px;
    top: 10%;
    right: 50%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    width: 100%;
}

.hero-text {
    color: white;
}

.hero-title {
    font-family: var(--font-secondary);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.gradient-text {
    background: linear-gradient(135deg, #ffd54f, #ff6b9d, #4facfe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ffd54f, #ff6b9d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: var(--success-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.hero-image {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    font-weight: 600;
    animation: cardFloat 4s ease-in-out infinite;
}

.floating-card i {
    font-size: 1.5rem;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 10%;
    right: 20%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 30%;
    left: 20%;
    animation-delay: 2s;
}

.card-4 {
    bottom: 10%;
    right: 10%;
    animation-delay: 3s;
}

@keyframes cardFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

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

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

.section-title {
    font-family: var(--font-secondary);
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

.bg-gradient {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.bg-light {
    background: var(--light-gray);
}

/* Introduction Grid */
.intro-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.intro-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.intro-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.intro-card:nth-child(1) .card-icon {
    background: var(--warning-gradient);
}

.intro-card:nth-child(2) .card-icon {
    background: var(--accent-gradient);
}

.intro-card:nth-child(3) .card-icon {
    background: var(--success-gradient);
}

.intro-card:nth-child(4) .card-icon {
    background: var(--secondary-gradient);
}

.intro-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

/* Workflow Comparison */
.workflow-comparison {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-xl);
}

.workflow-comparison h3 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--dark);
    font-size: 2rem;
}

.comparison-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.workflow {
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
}

.traditional {
    background: linear-gradient(135deg, #ffeaa7, #fab1a0);
}

.ai-enhanced {
    background: linear-gradient(135deg, #74b9ff, #0984e3);
    color: white;
}

.workflow h4 {
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.workflow-steps {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.step {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
}

.step.ai {
    background: rgba(255, 255, 255, 0.3);
}

.arrow {
    font-weight: bold;
    opacity: 0.7;
}

.timeline {
    font-size: 1.5rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    display: inline-block;
}

.timeline.improved {
    background: rgba(255, 255, 255, 0.4);
}

/* Tools Section */
.tools-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid transparent;
    background: white;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--dark);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-gradient);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.tool-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.tool-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.tool-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.tool-name {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--dark);
}

.tool-category {
    font-size: 0.9rem;
    color: var(--gray);
}

.tool-features {
    margin-bottom: var(--spacing-sm);
    color: var(--gray);
}

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

.pricing-badge {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
}

.free {
    background: var(--success-gradient);
    color: white;
}

.paid {
    background: var(--warning-gradient);
    color: white;
}

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

.tool-link {
    color: var(--blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}

.tool-link:hover {
    text-decoration: underline;
}

/* Guide Navigation */
.guide-navigation {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.guide-nav-item {
    background: white;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-align: center;
}

.guide-nav-item:hover,
.guide-nav-item.active {
    background: var(--primary-gradient);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.chapter-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.chapter-title {
    font-size: 0.9rem;
    font-weight: 600;
}

.guide-content {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    min-height: 500px;
}

/* Prompts Section */
.prompts-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    background: white;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--dark);
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--secondary-gradient);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.prompts-content {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.prompt-phase {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border-left: 4px solid;
}

.prompt-phase:nth-child(1) {
    border-left-color: var(--pink);
    background: rgba(255, 107, 157, 0.1);
}

.prompt-phase:nth-child(2) {
    border-left-color: var(--blue);
    background: rgba(55, 66, 250, 0.1);
}

.prompt-phase:nth-child(3) {
    border-left-color: var(--cyan);
    background: rgba(46, 213, 115, 0.1);
}

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

.ai-tool {
    font-weight: 600;
    color: var(--purple);
    margin-bottom: 0.5rem;
}

.prompt-example {
    background: rgba(0, 0, 0, 0.05);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    margin: var(--spacing-sm) 0;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.expected-output {
    font-style: italic;
    color: var(--gray);
    margin-top: 0.5rem;
}

/* Implementation Timeline */
.implementation-timeline {
    margin-bottom: var(--spacing-xl);
}

.timeline-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.timeline-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 32px;
    top: 70px;
    width: 2px;
    height: calc(100% + var(--spacing-md));
    background: linear-gradient(to bottom, var(--primary-gradient));
    opacity: 0.3;
}

.timeline-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.timeline-content {
    flex: 1;
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.timeline-content h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.timeline-duration {
    background: var(--accent-gradient);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
}

.timeline-content ul {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-sm);
}

.timeline-content li {
    margin-bottom: 0.5rem;
    color: var(--gray);
}

.timeline-content strong {
    color: var(--dark);
}

.time-savings {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--success-gradient);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ROI Section */
.roi-section {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.roi-section h3 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--dark);
    font-size: 2rem;
}

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

.roi-card {
    text-align: center;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.roi-card:nth-child(1) {
    background: linear-gradient(135deg, #74b9ff, #0984e3);
    color: white;
}

.roi-card:nth-child(2) {
    background: linear-gradient(135deg, #00b894, #00a085);
    color: white;
}

.roi-card:nth-child(3) {
    background: linear-gradient(135deg, #fdcb6e, #e17055);
    color: white;
}

.roi-card:nth-child(4) {
    background: linear-gradient(135deg, #fd79a8, #e84393);
    color: white;
}

.roi-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.roi-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-sm);
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.roi-card h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.roi-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.roi-card p {
    opacity: 0.9;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-section h4 i {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section h5 {
    margin-bottom: var(--spacing-sm);
    color: var(--light);
}

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

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

.footer-section a {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.footer-download {
    margin-top: var(--spacing-sm);
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    backdrop-filter: blur(10px);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
}

.close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray);
    transition: color 0.3s ease;
}

.close:hover {
    color: var(--dark);
}

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

.modal-header h2 {
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

.modal-header i {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-options {
    display: grid;
    gap: var(--spacing-md);
}

.download-option {
    background: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.download-option:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.download-option i {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    background: var(--secondary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-option h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

.download-option p {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
}

/* Loading Overlay */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 3000;
    backdrop-filter: blur(10px);
}

.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

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

.loading-spinner p {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .comparison-container {
        grid-template-columns: 1fr;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .guide-navigation {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .prompts-tabs {
        grid-template-columns: repeat(2, 1fr);
        display: grid;
    }
    
    .timeline-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .timeline-item::after {
        display: none;
    }
    
    .roi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .guide-navigation {
        grid-template-columns: 1fr;
    }
    
    .prompts-tabs {
        grid-template-columns: 1fr;
    }
    
    .roi-grid {
        grid-template-columns: 1fr;
    }
}

/* Smooth Scrolling and Animations */
@media (prefers-reduced-motion: no-preference) {
    .intro-card,
    .tool-card,
    .roi-card {
        animation: fadeInUp 0.6s ease-out;
    }
    
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .floating-card {
        animation: cardFloat 4s ease-in-out infinite;
    }
    
    .shape {
        animation: float 6s ease-in-out infinite;
    }
}