/* ===================================
   TickZero Landing Page Styles
   Professional & Modern Design
   =================================== */

/* CSS Variables for Design System */
:root {
    /* Colors */
    --color-primary: #0066ff;
    --color-primary-dark: #0052cc;
    --color-primary-light: #3388ff;
    --color-secondary: #00d4ff;
    --color-accent: #00ff88;

    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #e9ecef;
    --color-bg-dark: #0a0f1a;
    --color-bg-card: #ffffff;

    --color-text-primary: #1a1a1a;
    --color-text-secondary: #333333;
    --color-text-tertiary: #666666;
    --color-text-white: #ffffff;

    --color-border: #e0e0e0;
    --color-border-light: #f0f0f0;

    --color-success: #00c853;
    --color-warning: #ffa726;
    --color-info: #29b6f6;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0066ff 0%, #00d4ff 100%);
    --gradient-hero: linear-gradient(135deg, #0a0f1a 0%, #1a2332 100%);
    --gradient-text: linear-gradient(135deg, #0066ff 0%, #00d4ff 50%, #00ff88 100%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);

    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-base: 0.25s ease-in-out;
    --transition-slow: 0.4s ease-in-out;

    /* Container */
    --container-max-width: 1200px;
}

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

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

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

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* ===================================
   Utility Classes
   =================================== */

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

.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: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-bold);
    font-size: 1.25rem;
    color: var(--color-text-primary);
}

.logo-img {
    height: 40px;
    width: auto;
}

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

.nav-links a {
    font-weight: var(--font-weight-medium);
    font-size: 0.938rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
}

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

.nav-links .btn-primary {
    padding: 0.625rem 1.75rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-base);
}

/* Language Selector */
.language-selector {
    position: relative;
    list-style: none;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.lang-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(0, 102, 255, 0.05);
}

.lang-btn svg {
    width: 12px;
    height: 12px;
    transition: transform var(--transition-base);
}

.language-selector:hover .lang-btn svg {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 180px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: 1000;
    list-style: none;
    padding: 0.5rem;
    margin: 0;
}

.language-selector:hover .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown li {
    list-style: none;
}

.lang-dropdown a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    font-size: 0.938rem;
    font-weight: var(--font-weight-medium);
}

.lang-dropdown a:hover {
    background: rgba(0, 102, 255, 0.08);
    color: var(--color-primary);
}

.lang-dropdown a.active {
    background: rgba(0, 102, 255, 0.12);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

/* Language-specific font support */
html[lang="ru"],
html[lang="ru"] * {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

html[lang="zh"],
html[lang="zh"] * {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    font-weight: var(--font-weight-semibold);
    font-size: 0.938rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-primary {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid transparent;
    background-image: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.2);
    position: relative;
}

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

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-md);
    padding: 2px;
    background: var(--gradient-primary);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
    z-index: -1;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: rgba(255, 255, 255, 0.9);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 70px;
    overflow: hidden;
    background: var(--gradient-hero);
    color: var(--color-text-white);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
    background-image:
        radial-gradient(circle at 20% 50%, var(--color-primary) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, var(--color-secondary) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--spacing-3xl) 0;
}

.hero-badge {
    margin-bottom: var(--spacing-md);
}

.badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-secondary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===================================
   Section Header
   =================================== */

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

.section-header h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

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

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

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

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

.feature-card {
    background: var(--color-bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-base);
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    color: white;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===================================
   How It Works Section
   =================================== */

.how-it-works {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg-primary);
}

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

.step {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--color-border-light);
}

.step:last-child {
    border-bottom: none;
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-full);
}

.step-content h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.step-content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.code-snippet {
    background-color: var(--color-bg-dark);
    color: var(--color-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-family: 'Courier New', monospace;
    font-size: 0.938rem;
    overflow-x: auto;
}

.highlight-list {
    display: grid;
    gap: var(--spacing-xs);
}

.highlight-list li {
    padding: var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-medium);
}

.output-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.output-spec {
    padding: var(--spacing-md);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    font-size: 0.938rem;
}

.output-spec strong {
    display: block;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

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

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

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: var(--spacing-2xl);
}

.timeline-marker {
    position: absolute;
    left: 18px;
    top: 0;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background-color: var(--color-bg-secondary);
    border: 3px solid var(--color-border);
    transition: all var(--transition-base);
}

.timeline-item.completed .timeline-marker {
    background-color: var(--color-success);
    border-color: var(--color-success);
    box-shadow: 0 0 0 4px rgba(0, 200, 83, 0.2);
}

.timeline-item.in-progress .timeline-marker {
    background-color: var(--color-warning);
    border-color: var(--color-warning);
    box-shadow: 0 0 0 4px rgba(255, 167, 38, 0.2);
    animation: pulse 2s ease-in-out infinite;
}

.timeline-item.planned .timeline-marker {
    background-color: var(--color-info);
    border-color: var(--color-info);
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.timeline-content {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.timeline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.timeline-header h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.timeline-status {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.813rem;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
}

.timeline-status.completed {
    background-color: rgba(0, 200, 83, 0.1);
    color: var(--color-success);
}

.timeline-status.in-progress {
    background-color: rgba(255, 167, 38, 0.1);
    color: var(--color-warning);
}

.timeline-status.planned {
    background-color: rgba(41, 182, 246, 0.1);
    color: var(--color-info);
}

.timeline-content ul {
    display: grid;
    gap: var(--spacing-xs);
}

.timeline-content li {
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-secondary);
}

.timeline-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6rem;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: var(--color-text-tertiary);
}

/* ===================================
   FAQ Section
   =================================== */

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

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    text-align: left;
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    background: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-icon {
    flex-shrink: 0;
    transition: transform var(--transition-base);
    color: var(--color-primary);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 1000px;
}

.faq-answer>* {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.faq-answer p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.faq-answer ul {
    list-style: disc;
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.faq-answer li {
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.faq-answer a {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.faq-answer a:hover {
    text-decoration: underline;
}

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

.download {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-hero);
    color: var(--color-text-white);
}

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

.download-content h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.download-content>p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xl);
}

.download-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.quick-start {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
}

.quick-start-label {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.8);
}

.code-block {
    position: relative;
    background-color: rgba(10, 15, 26, 0.8);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    font-family: 'Courier New', monospace;
}

.code-block:last-child {
    margin-bottom: 0;
}

.code-block code {
    color: var(--color-secondary);
    font-size: 0.875rem;
    display: block;
    overflow-x: auto;
    padding-right: 40px;
}

.copy-btn {
    position: absolute;
    top: 50%;
    right: var(--spacing-sm);
    transform: translateY(-50%);
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
}

.copy-btn.copied {
    background: var(--color-success);
    color: white;
}

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

.footer {
    background-color: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-bold);
    font-size: 1.25rem;
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-logo img {
    height: 32px;
    width: auto;
}

.footer-description {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.footer-section h4 {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    display: grid;
    gap: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-base);
}

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

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
    font-weight: var(--font-weight-medium);
}

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

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        gap: var(--spacing-lg);
    }

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

    .step {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .timeline::before {
        left: 11px;
    }

    .timeline-item {
        padding-left: 50px;
    }

    .timeline-marker {
        left: 0;
    }

    .download-buttons {
        flex-direction: column;
    }

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

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }

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

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Scroll animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Print Styles
   =================================== */

@media print {

    .navbar,
    .hero-background,
    .download,
    .footer {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }
}