/* ================================
   MaterialX Website Styles
   Professional/Technical Design
   ================================ */

:root {
    /* Colors */
    --color-primary: #007AFF;
    --color-primary-dark: #0051D5;
    --color-secondary: #34C759;
    --color-accent: #FF375F;
    --color-warning: #FF9500;

    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f7;
    --color-bg-dark: #1d1d1f;

    --color-text: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-text-tertiary: #86868b;

    --color-border: #d2d2d7;
    --color-border-light: #e8e8ed;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", monospace;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ================================
   Reset & Base Styles
   ================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-system);
    font-size: 17px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

/* ================================
   Navigation
   ================================ */

.nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-light);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

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

.nav-menu a {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

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

.nav-cta {
    padding: 0.5rem 1rem;
    background: var(--color-primary);
    color: white !important;
    border-radius: 20px;
    font-weight: 600;
}

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

/* Mobile Menu Toggle - Hidden completely */
.nav-toggle {
    display: none !important;
}

/* Mobile Navigation - Hide on small screens */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .nav-content {
        justify-content: center;
    }
}

/* ================================
   Hero Section
   ================================ */

.hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    min-height: 80vh;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-bg-alt);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.hero-subtitle {
    font-size: 1.5rem;
    line-height: 1.4;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 90%;
}

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

.hero-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.hero-image img {
    width: 100%;
    height: auto;
}

/* ================================
   Buttons
   ================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 122, 255, 0.3);
}

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

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

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

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

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 18px;
}

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

.btn-appstore:hover {
    background: var(--color-bg-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

/* ================================
   Stats Section
   ================================ */

.stats {
    background: var(--color-bg-alt);
    padding: var(--spacing-lg) var(--spacing-md);
}

.stats-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

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

.stat-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.stat-desc {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ================================
   Section Headers
   ================================ */

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ================================
   Features Section
   ================================ */

.features {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.feature-card {
    padding: var(--spacing-md);
    background: white;
    border: 1px solid var(--color-border-light);
    border-radius: 16px;
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary);
}

.feature-icon {
    margin-bottom: var(--spacing-md);
}

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

.feature-desc {
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

/* ================================
   Workflow Section
   ================================ */

.workflow {
    background: var(--color-bg-alt);
    padding: var(--spacing-xl) var(--spacing-md);
}

.workflow-steps {
    max-width: 1000px;
    margin: 0 auto;
}

.workflow-step {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: white;
    border-radius: 16px;
}

.workflow-step:last-child {
    margin-bottom: 0;
}

.step-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-mono);
}

.step-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.step-desc {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.step-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.step-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-md);
}

.feature-tag {
    padding: 0.5rem 1rem;
    background: var(--color-bg-alt);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    font-family: var(--font-mono);
}

/* ================================
   Interface Features - CSS-only Tabs
   ================================ */

.interface-features {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    background: var(--color-bg-alt);
}

.interface-container {
    display: grid;
    grid-template-columns: 280px 320px;
    gap: var(--spacing-md);
    background: white;
    border-radius: 20px;
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border-light);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    max-width: fit-content;
    margin: 0 auto;
}

.interface-sidebar {
    background: var(--color-bg-alt);
    padding: var(--spacing-md);
    border-radius: 12px;
}

.sidebar-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.interface-main {
    display: flex;
    flex-direction: column;
}

/* Tab Labels */
.tool-tabs {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: var(--spacing-sm);
}

.tool-tabs label {
    padding: 0.5rem 0.75rem;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
    user-select: none;
}

.tool-tabs label:hover {
    color: var(--color-primary);
}

/* Active tab styling using sibling selector */
#tab-transformation:checked ~ .tool-tabs label[for="tab-transformation"],
#tab-curves:checked ~ .tool-tabs label[for="tab-curves"],
#tab-presets:checked ~ .tool-tabs label[for="tab-presets"],
#tab-shapes:checked ~ .tool-tabs label[for="tab-shapes"],
#tab-settings:checked ~ .tool-tabs label[for="tab-settings"] {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Hide all panels by default */
.tool-content {
    position: relative;
    min-height: 380px;
}

.tool-panel {
    display: none;
}

/* Show the appropriate panel based on checked radio */
#tab-transformation:checked ~ .tool-content .tool-panel:nth-child(1),
#tab-curves:checked ~ .tool-content .tool-panel:nth-child(2),
#tab-presets:checked ~ .tool-content .tool-panel:nth-child(3),
#tab-shapes:checked ~ .tool-content .tool-panel:nth-child(4),
#tab-settings:checked ~ .tool-content .tool-panel:nth-child(5) {
    display: block;
}

.tool-panel img {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: var(--spacing-sm);
}

.tool-panel h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--color-text);
}

.tool-panel p {
    font-size: 13px;
    line-height: 1.5;
    color: var(--color-text-secondary);
    margin: 0;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ================================
   Image Comparison Slider
   ================================ */

.comparison-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    background: white;
}

.comparison-container {
    max-width: 900px;
    margin: 0 auto;
}

.comparison-slider {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    user-select: none;
}

.comparison-image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.comparison-image-before {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    pointer-events: none;
    display: block;
    max-width: none;
}

.comparison-image-after {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
    transition: clip-path 0.1s ease;
}

.comparison-image-after img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    pointer-events: none;
    display: block;
    max-width: none;
}

.comparison-slider-control {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: ew-resize;
    z-index: 10;
}

.comparison-slider-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 5;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
    transition: left 0.1s ease, transform 0.1s ease;
}

.comparison-slider:hover .comparison-slider-button {
    transform: translate(-50%, -50%) scale(1.1);
}

.comparison-labels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.comparison-label {
    text-align: center;
}

.label-badge {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: var(--color-bg-alt);
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: var(--spacing-xs);
}

.comparison-label-after .label-badge {
    background: var(--color-primary);
    color: white;
}

.comparison-label p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin: 0;
}

/* ================================
   Technical Specs
   ================================ */

.tech-specs {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.spec-category {
    padding: var(--spacing-md);
    background: white;
    border: 1px solid var(--color-border-light);
    border-radius: 16px;
}

.spec-category-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
}

.spec-list {
    list-style: none;
}

.spec-list li {
    padding: 0.5rem 0;
    font-size: 15px;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.spec-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: 700;
}

/* ================================
   Roadmap Section
   ================================ */

.roadmap {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.roadmap-card {
    padding: var(--spacing-lg);
    background: white;
    border: 2px solid var(--color-border-light);
    border-radius: 20px;
    transition: var(--transition-smooth);
}

.roadmap-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.roadmap-featured {
    grid-column: 1 / -1;
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.02) 0%, rgba(0, 122, 255, 0.05) 100%);
}

.roadmap-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-bg-alt);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.roadmap-featured .roadmap-badge {
    background: var(--color-primary);
    color: white;
}

.roadmap-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.roadmap-desc {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.roadmap-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.roadmap-features li {
    padding: 0.75rem 0;
    font-size: 15px;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
    line-height: 1.6;
}

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

.roadmap-features strong {
    color: var(--color-primary);
}

.roadmap-note {
    padding: var(--spacing-md);
    background: rgba(0, 122, 255, 0.05);
    border-left: 3px solid var(--color-primary);
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.roadmap-note strong {
    display: block;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-size: 15px;
}

.roadmap-cta {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-bg-alt);
    border-radius: 16px;
    font-size: 16px;
}

.roadmap-cta a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: underline;
}

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

/* ================================
   Examples Gallery
   ================================ */

.examples-gallery {
    background: var(--color-bg-alt);
    padding: var(--spacing-xl) var(--spacing-md);
}

.examples-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.example-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-smooth);
    border: 1px solid var(--color-border-light);
}

.example-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.ar-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.example-preview {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--color-bg-alt);
}

.example-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.example-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, #e8e8ed 100%);
}

.placeholder-text {
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: 14px;
    font-weight: 600;
}

.ar-badge {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(0, 122, 255, 0.95);
    backdrop-filter: blur(10px);
    color: white;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition-fast);
}

.example-card:hover .ar-badge {
    background: var(--color-primary-dark);
    transform: scale(1.05);
}

.ar-badge svg {
    width: 20px;
    height: 20px;
}

.example-info {
    padding: var(--spacing-md);
}

.example-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.example-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.examples-note {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md);
    background: white;
    border-radius: 12px;
    text-align: center;
    font-size: 14px;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-light);
}

.examples-note strong {
    color: var(--color-text);
}

/* ================================
   Pricing Section
   ================================ */

.pricing {
    background: var(--color-bg-alt);
    padding: var(--spacing-xl) var(--spacing-md);
}

.pricing-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.pricing-card {
    padding: var(--spacing-lg);
    background: white;
    border: 2px solid var(--color-border-light);
    border-radius: 20px;
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
}

.pricing-featured {
    border-color: var(--color-primary);
    border-width: 3px;
}

.pricing-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-bg-alt);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.pricing-featured .pricing-badge {
    background: var(--color-primary);
    color: white;
}

.pricing-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.pricing-price {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border-light);
    border-bottom: 1px solid var(--color-border-light);
}

.price-value {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.price-label {
    display: block;
    font-size: 16px;
    color: var(--color-text-secondary);
}

.pricing-features {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    padding: 0.75rem 0;
    font-size: 16px;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
    position: relative;
    padding-left: 1.5rem;
}

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

.pricing-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: 700;
}

.pricing-alternatives {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-light);
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* ================================
   Download Section
   ================================ */

.download {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
}

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

.download-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.download-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.download-cta {
    margin-bottom: var(--spacing-md);
}

.download-note {
    font-size: 14px;
    opacity: 0.7;
}

/* ================================
   Footer
   ================================ */

.footer {
    background: var(--color-bg-dark);
    color: white;
    padding: var(--spacing-lg) var(--spacing-md);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-desc {
    font-size: 15px;
    opacity: 0.7;
    line-height: 1.6;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    font-size: 15px;
    opacity: 0.7;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-primary);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 14px;
    opacity: 0.6;
}

/* ================================
   Responsive Design
   ================================ */

@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: var(--spacing-lg);
    }

    .hero-content {
        order: 2;
    }

    .hero-image {
        order: 1;
        margin-bottom: var(--spacing-lg);
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

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

    .interface-container {
        max-width: 1200px;
    }

    .interface-sidebar {
        max-width: 600px;
        margin: 0 auto;
    }

    .tool-content {
        min-height: 300px;
    }

    .tool-panel img {
        max-width: 250px;
    }

    .tool-tabs {
        flex-wrap: wrap;
    }

    .tool-tabs label {
        font-size: 12px;
        padding: 0.4rem 0.6rem;
    }

    .comparison-container {
        max-width: 100%;
    }

    .comparison-slider {
        padding-bottom: 75%; /* 4:3 aspect ratio */
    }

    .comparison-labels {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

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

    .roadmap-featured {
        grid-column: 1;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

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

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

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

    .hero-subtitle {
        font-size: 1.25rem;
    }

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

    .feature-grid,
    .specs-grid,
    .examples-grid {
        grid-template-columns: 1fr;
    }

    .interface-container {
        grid-template-columns: 1fr;
        max-width: 350px;
    }

    .interface-sidebar {
        max-width: 280px;
        margin: 0 auto;
    }

    .tool-content {
        min-height: 250px;
    }

    .tool-panel img {
        max-width: 220px;
    }

    .workflow-step {
        grid-template-columns: 1fr;
    }

    .step-number {
        text-align: center;
    }

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

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

/* ================================
   Animations
   ================================ */

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

.animate-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* Smooth scrolling enhancement */
html {
    scroll-padding-top: 80px;
}

/* Selection color */
::selection {
    background: var(--color-primary);
    color: white;
}