/* ==================================================
   VisionUI Framework Website - Modern CSS
   Created for the 2025 VisionUI Framework
   ================================================== */

:root {
    /* Color Palette - Modern & Elegant */
    --primary-color: #00FFFF;
    --primary-hover: #00E6E6;
    --secondary-color: #0000FF;
    --secondary-hover: #0000E6;
    --accent-color: #FF00FF;
    --accent-hover: #E600E6;

    /* Neutral Colors */
    --bg-primary: #0A0A0A;
    --bg-secondary: #111111;
    --bg-tertiary: #1A1A1A;
    --bg-card: rgba(255, 255, 255, 0.02);
    --bg-glass: rgba(255, 255, 255, 0.05);

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #CCCCCC;
    --text-tertiary: #999999;
    --text-muted: #666666;

    /* Border Colors */
    --border-primary: rgba(255, 255, 255, 0.1);
    --border-secondary: rgba(255, 255, 255, 0.05);
    --border-accent: var(--primary-color);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 20px rgba(0, 255, 255, 0.3);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    --gradient-bg: linear-gradient(135deg, #0A0A0A 0%, #1A1A1A 50%, #0A0A0A 100%);
    --gradient-text: linear-gradient(135deg, var(--primary-color), var(--accent-color));

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Monaco, 'Cascadia Code', monospace;

    /* Spacing */
    --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 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ==================================================
   BASE STYLES
   ================================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    background-image:
        radial-gradient(circle at 25% 25%, rgba(0, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 0, 255, 0.05) 0%, transparent 50%);
}

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

/* ==================================================
   TYPOGRAPHY
   ================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.7;
}

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

/* ==================================================
   NAVIGATION
   ================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    backdrop-filter: blur(20px);
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border-secondary);
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    box-shadow: var(--shadow-lg);
}

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

.nav-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: center;
}

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

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

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

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
    border-radius: 2px;
}

/* ==================================================
   HERO SECTION
   ================================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--spacing-lg);
}

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

.hero-title {
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    color: var(--primary-color);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-2xl);
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(0, 255, 255, 0.05);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ==================================================
   HERO VISUAL - Mockup
   ================================================== */

.hero-visual {
    animation: fadeInRight 1.2s ease-out;
}

.mockup-container {
    perspective: 1000px;
    transform-style: preserve-3d;
}

.mockup-window {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: rotateY(-5deg) rotateX(5deg);
    transition: transform var(--transition-slow);
}

.mockup-window:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

.mockup-header {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-primary);
}

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

.mockup-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
}

.mockup-btn:nth-child(1) {
    background: #FF5F57;
}

.mockup-btn:nth-child(2) {
    background: #FFBD2E;
}

.mockup-btn:nth-child(3) {
    background: #28CA42;
}

.mockup-title {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.mockup-content {
    display: flex;
    height: 400px;
}

.mockup-sidebar {
    width: 200px;
    background: var(--bg-tertiary);
    border-right: 1px solid var(--border-primary);
    padding: var(--spacing-lg);
}

.component-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-sm);
}

.component-item:hover,
.component-item.active {
    background: var(--bg-glass);
    border: 1px solid var(--primary-color);
}

.component-icon {
    font-size: 1.25rem;
}

.component-item span {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.mockup-canvas {
    flex: 1;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
    justify-content: center;
}

.canvas-element {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--border-primary);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    min-width: 200px;
    text-align: center;
}

.canvas-element:hover {
    border-color: var(--primary-color);
    background: rgba(0, 255, 255, 0.05);
}

.btn-preview {
    background: var(--gradient-primary);
    border: none;
    color: var(--bg-primary);
    font-weight: 600;
    box-shadow: var(--shadow-glow);
}

.btn-text {
    font-size: 1rem;
}

.text-preview {
    border: 1px solid var(--border-primary);
}

.text-content {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==================================================
   HERO BACKGROUND PATTERN
   ================================================== */

.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.3;
    pointer-events: none;
    background-image:
        radial-gradient(circle at 20% 80%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 0, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(0, 0, 255, 0.1) 0%, transparent 50%);
}

/* ==================================================
   FEATURES SECTION
   ================================================== */

.features {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

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

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

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.feature-icon {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    display: block;
}

.feature-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==================================================
   DESIGNER SECTION
   ================================================== */

.designer {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
}

.designer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.designer-text {
    animation: fadeInLeft 1s ease-out;
}

.designer-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.designer-description {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.designer-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.designer-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--text-secondary);
}

.feature-check {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.25rem;
}

.designer-visual {
    animation: fadeInRight 1s ease-out;
}

.designer-mockup {
    position: relative;
}

.designer-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

/* ==================================================
   GALLERY SECTION
   ================================================== */

.gallery {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

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

.gallery-item {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.gallery-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.gallery-image {
    height: 250px;
    overflow: hidden;
    position: relative;
}

.app-preview {
    width: 100%;
    height: 100%;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
}

.app-header {
    background: var(--bg-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-primary);
}

.app-title {
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 600;
}

.app-controls {
    display: flex;
    gap: var(--spacing-xs);
}

.control-btn {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-primary);
}

.app-content {
    flex: 1;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Trading App Styles */
.trading-app .chart-area {
    flex: 1;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
}

.price-chart {
    flex: 1;
    background: linear-gradient(135deg, rgba(0, 255, 0, 0.1), rgba(255, 0, 0, 0.1));
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
}

.indicators {
    height: 30px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-primary);
}

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

.market-data,
.portfolio {
    flex: 1;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-primary);
    padding: var(--spacing-sm);
}

/* Audio Controller Styles */
.control-app .volume-slider {
    width: 100%;
    height: 40px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    display: flex;
    align-items: center;
    padding: var(--spacing-sm);
}

.slider-track {
    flex: 1;
    height: 4px;
    background: var(--border-primary);
    border-radius: 2px;
    margin: 0 var(--spacing-sm);
}

.slider-handle {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: var(--shadow-glow);
}

.equalizer {
    display: flex;
    justify-content: space-around;
    align-items: end;
    height: 60px;
}

.eq-bar {
    width: 8px;
    background: var(--border-primary);
    border-radius: 4px;
    transition: all var(--transition-normal);
}

.eq-bar.active {
    background: var(--primary-color);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.eq-bar:nth-child(1) { height: 20px; }
.eq-bar:nth-child(2) { height: 35px; }
.eq-bar:nth-child(3) { height: 15px; }
.eq-bar:nth-child(4) { height: 45px; }
.eq-bar:nth-child(5) { height: 25px; }

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

.preset-btn {
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preset-btn.active {
    background: var(--primary-color);
    color: var(--bg-primary);
    border-color: var(--primary-color);
}

/* CAN Monitor Styles */
.dashboard-app .data-grid {
    flex: 1;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    padding: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.data-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.data-row.warning {
    border: 1px solid #FF6B35;
    background: rgba(255, 107, 53, 0.1);
}

.data-id {
    color: var(--primary-color);
    font-weight: 600;
}

.data-value {
    color: var(--text-primary);
}

.data-status {
    color: var(--text-tertiary);
    font-size: 0.7rem;
    padding: 2px 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.data-status.OK {
    color: #28CA42;
}

.data-status.LOW {
    color: #FF6B35;
}

.status-panel {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.status-indicator.online {
    background: #28CA42;
    box-shadow: 0 0 10px rgba(40, 202, 66, 0.5);
}

.status-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.gallery-info {
    padding: var(--spacing-lg);
}

.gallery-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.gallery-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.gallery-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

/* ==================================================
   DOWNLOAD SECTION
   ================================================== */

.download {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.download-text {
    animation: fadeInLeft 1s ease-out;
}

.download-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.download-description {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.download-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.download-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--text-secondary);
}

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

.download-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.download-info span {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.download-visual {
    animation: fadeInRight 1s ease-out;
}

.code-preview {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.code-header {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-primary);
}

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

.code-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-primary);
}

.code-title {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.code-content {
    padding: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    overflow-x: auto;
}

.code-keyword {
    color: #FF6B35;
}

.code-string {
    color: #28CA42;
}

.code-comment {
    color: var(--text-tertiary);
    font-style: italic;
}

/* ==================================================
   CONTACT SECTION
   ================================================== */

.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-info {
    animation: fadeInLeft 1s ease-out;
}

.contact-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.contact-description {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.contact-icon {
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.contact-label {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    font-weight: 500;
}

.contact-value {
    color: var(--text-primary);
    font-weight: 500;
}

.contact-form {
    animation: fadeInRight 1s ease-out;
}

.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-label {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.875rem;
}

.form-input,
.form-textarea {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-tertiary);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* ==================================================
   FOOTER
   ================================================== */

.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-primary);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

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

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

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

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

.footer-title {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
}

.footer-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-list a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-primary);
}

.footer-copyright {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.footer-copyright p {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.footer-social {
    display: flex;
    gap: var(--spacing-lg);
}

.social-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ==================================================
   ANIMATIONS
   ================================================== */

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ==================================================
   RESPONSIVE DESIGN
   ================================================== */

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

    .nav-toggle {
        display: flex;
    }

    .hero-container,
    .designer-content,
    .download-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .hero-visual,
    .designer-visual,
    .download-visual {
        order: -1;
    }

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

    .btn {
        justify-content: center;
    }

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

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-container,
    .designer-content,
    .download-content,
    .contact-content {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .footer-links {
        grid-template-columns: 1fr;
    }

    .designer-feature,
    .download-feature {
        font-size: 0.875rem;
    }

    .mockup-content {
        flex-direction: column;
        height: auto;
    }

    .mockup-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-primary);
    }

    .contact-details {
        gap: var(--spacing-md);
    }

    .contact-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
}

/* ==================================================
   UTILITIES
   ================================================== */

.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;
}

.visually-hidden {
    opacity: 0;
    pointer-events: none;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-secondary);
}

/* Selection Styling */
::selection {
    background: rgba(0, 255, 255, 0.3);
    color: var(--text-primary);
}

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

/* Print Styles */
@media print {
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }

    a, a:visited {
        text-decoration: underline;
    }

    .navbar,
    .btn,
    .hero-bg-pattern {
        display: none;
    }
}