/* AI Coloring Prints - Website Styles */

/* ===== CSS Variables ===== */
:root {
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #818cf8;
    --color-secondary: #f59e0b;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-background: #ffffff;
    --color-background-alt: #f9fafb;
    --color-border: #e5e7eb;
    --color-success: #10b981;
    --color-error: #ef4444;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    --max-width: 1200px;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-primary-dark);
}

a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

ul {
    list-style: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
    margin-bottom: var(--spacing-md);
}

/* ===== Header & Navigation ===== */
header {
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
}

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

.logo-icon {
    font-size: 1.5em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--color-text);
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.nav-cta {
    background-color: var(--color-primary);
    color: white !important;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
}

.nav-cta:hover {
    background-color: var(--color-primary-dark);
    color: white !important;
}

/* ===== Main Content ===== */
main {
    flex: 1;
}

section {
    padding: var(--spacing-3xl) var(--spacing-xl);
}

section > h2,
section > p {
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
}

/* ===== Hero Section ===== */
.hero {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(var(--font-size-2xl), 5vw, var(--font-size-4xl));
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.hero .subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.cta-subtext {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* ===== CTA Button ===== */
.cta-button {
    display: inline-block;
    background-color: var(--color-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: var(--font-size-lg);
    transition: background-color 0.2s ease, transform 0.2s ease;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    background-color: var(--color-primary-dark);
    color: white;
    transform: translateY(-2px);
}

.cta-button:focus {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
}

.cta-button.primary {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-xl);
    box-shadow: var(--shadow-md);
}

/* ===== Features Section ===== */
.features {
    background-color: var(--color-background);
    text-align: center;
}

.features h2 {
    margin-bottom: var(--spacing-2xl);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    max-width: var(--max-width);
    margin: 0 auto;
}

.feature {
    padding: var(--spacing-xl);
    background-color: var(--color-background-alt);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.feature h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-xl);
}

.feature p {
    color: var(--color-text-light);
    margin-bottom: 0;
    font-size: var(--font-size-base);
}

/* ===== How It Works Section ===== */
.how-it-works {
    background-color: var(--color-background-alt);
    text-align: center;
}

.how-it-works h2 {
    margin-bottom: var(--spacing-2xl);
}

.steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-2xl);
    max-width: var(--max-width);
    margin: 0 auto;
}

.step {
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    text-align: center;
    padding: var(--spacing-xl);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background-color: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.step h3 {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-xl);
}

.step p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* ===== Perfect For Section ===== */
.perfect-for {
    background-color: var(--color-background);
    text-align: center;
}

.perfect-for h2 {
    margin-bottom: var(--spacing-2xl);
}

.use-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: left;
}

.use-cases li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-background-alt);
    border-radius: var(--border-radius);
    font-size: var(--font-size-lg);
}

.use-cases li span {
    font-size: 1.5rem;
}

/* ===== Pricing Section ===== */
.pricing {
    background-color: var(--color-background-alt);
    text-align: center;
}

.pricing h2 {
    margin-bottom: var(--spacing-md);
}

.pricing-intro {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto var(--spacing-xl);
}

.price-card {
    padding: var(--spacing-xl);
    background-color: var(--color-background);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.price-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.price-card.popular {
    border-color: var(--color-primary);
    position: relative;
}

.price-card.popular::before {
    content: 'Best Value';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.price-card.free {
    border-color: var(--color-success);
}

.price-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-xl);
}

.price-card .price {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.price-card.free .price {
    color: var(--color-success);
}

.price-card .pages {
    font-size: var(--font-size-lg);
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.price-card .price-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: 0;
}

.pricing-footer {
    color: var(--color-text-light);
    font-size: var(--font-size-base);
    margin-bottom: 0;
}

/* ===== Download Section ===== */
.download {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    text-align: center;
    color: white;
}

.download h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.download > p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-lg);
}

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

.store-badge {
    display: inline-block;
    transition: transform 0.2s ease;
}

.store-badge:hover {
    transform: scale(1.05);
}

.store-badge img {
    height: 60px;
    width: auto;
}

.coming-soon {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-base);
    margin-bottom: 0;
}

/* ===== Footer ===== */
footer {
    background-color: var(--color-text);
    color: white;
    padding: var(--spacing-2xl) var(--spacing-xl);
    margin-top: auto;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.footer-links {
    margin-bottom: var(--spacing-lg);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    margin: 0 var(--spacing-md);
    transition: color 0.2s ease;
}

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

.contact {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
    font-style: normal;
}

.contact a {
    color: rgba(255, 255, 255, 0.8);
}

.contact a:hover {
    color: white;
}

.copyright {
    color: rgba(255, 255, 255, 0.4);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

/* ===== Legal Pages ===== */
.legal-page {
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h1 {
    margin-bottom: var(--spacing-md);
}

.legal-content .last-updated {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-2xl);
}

.legal-content section {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.legal-content section:last-child {
    border-bottom: none;
}

.legal-content h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.legal-content h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.legal-content ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
    list-style: disc;
}

.legal-content li {
    margin-bottom: var(--spacing-sm);
}

.legal-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
}

.legal-content th,
.legal-content td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.legal-content th {
    background-color: var(--color-background-alt);
    font-weight: 600;
    border-bottom: 2px solid var(--color-border);
}

.legal-content tr:hover {
    background-color: var(--color-background-alt);
}

/* ===== Error Page (404) ===== */
.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    padding: var(--spacing-2xl);
}

.error-content {
    max-width: 500px;
}

.error-icon {
    font-size: 4rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.error-content h1 {
    font-size: 8rem;
    color: var(--color-primary);
    margin-bottom: 0;
    line-height: 1;
}

.error-content h2 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.error-content > p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.error-actions {
    margin-bottom: var(--spacing-xl);
}

.error-suggestion {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.error-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

.error-links li {
    display: inline;
}

.error-links a {
    color: var(--color-primary);
    font-weight: 500;
    transition: color 0.2s ease;
}

.error-links a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ===== Accessibility ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 1000;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 0;
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.25rem;
    }
    
    section {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
    
    .hero {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
    
    .nav-links {
        display: none;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        flex-direction: column;
        align-items: center;
    }
    
    .use-cases {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links a {
        display: block;
        margin: var(--spacing-sm) 0;
    }
    
    .error-content h1 {
        font-size: 5rem;
    }
    
    .error-icon {
        font-size: 3rem;
    }
    
    .error-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    header {
        padding: var(--spacing-md);
    }
    
    .cta-button {
        display: block;
        text-align: center;
        width: 100%;
    }
    
    .cta-button.primary {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-lg);
    }
    
    .store-badge img {
        height: 50px;
    }
}

/* ===== Print Styles ===== */
@media print {
    header, footer, .cta-button, .store-badge, .nav-links {
        display: none;
    }
    
    body {
        font-size: 12pt;
        color: black;
        background: white;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
    
    .hero {
        background: none;
        padding: var(--spacing-lg) 0;
    }
    
    .download {
        background: none;
        color: black;
    }
    
    .download h2,
    .download p {
        color: black;
    }
    
    .legal-content {
        max-width: 100%;
    }
    
    section {
        page-break-inside: avoid;
    }
}