/* ===================================
   CSS Variables & Base Styles
   =================================== */

:root {
    /* Colors */
    --color-bg: #030712;
    --color-bg-elevated: #0f172a;
    --color-bg-card: #1e293b;
    --color-primary: #06b6d4;
    --color-primary-dark: #0891b2;
    --color-primary-glow: rgba(6, 182, 212, 0.15);
    --color-text: #f8fafc;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    --color-border: #334155;
    --color-border-light: #1e293b;
    
    /* Typography */
    --font-display: 'Sora', sans-serif;
    --font-body: 'Source Sans 3', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 5rem;
    --space-3xl: 8rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* ===================================
   Layout
   =================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section {
    padding: var(--space-3xl) 0;
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-sm) 0;
    background: rgba(3, 7, 18, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    transition: var(--transition-base);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 600;
}

.logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-bg);
}

.logo-text {
    font-size: 1.125rem;
}

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

.nav-links a {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.nav-cta {
    padding: 0.625rem 1.25rem;
    background: var(--color-primary);
    color: var(--color-bg) !important;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.nav-cta:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-fast);
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, black 70%, transparent 100%);
}

.hero-glow {
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, var(--color-primary-glow) 0%, transparent 70%);
    filter: blur(60px);
}

.hero-content {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.5rem 1rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.6s ease forwards;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.6s ease 0.1s forwards;
    opacity: 0;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary), #67e8f9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    animation: fadeInUp 0.6s ease 0.2s forwards;
    opacity: 0;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 0.6s ease 0.3s forwards;
    opacity: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.875rem 1.5rem;
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(6, 182, 212, 0.3);
}

.btn-primary svg {
    transition: transform var(--transition-fast);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-text-muted);
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    animation: fadeInUp 0.6s ease 0.4s forwards;
    opacity: 0;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.stat-divider {
    width: 1px;
    height: 3rem;
    background: var(--color-border);
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: fadeIn 0.6s ease 0.6s forwards;
    opacity: 0;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.5; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
}

.section-tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--color-primary-glow);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
}

/* ===================================
   Demos Section
   =================================== */

.demos {
    background: var(--color-bg);
}

.demos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.demo-card {
    position: relative;
    padding: var(--space-lg);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.demo-card:hover {
    border-color: var(--color-border);
    transform: translateY(-4px);
}

.demo-card-featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    background: linear-gradient(135deg, var(--color-bg-elevated) 0%, rgba(6, 182, 212, 0.05) 100%);
    border-color: rgba(6, 182, 212, 0.2);
}

.demo-card-featured:hover {
    border-color: rgba(6, 182, 212, 0.4);
    box-shadow: 0 20px 60px rgba(6, 182, 212, 0.1);
}

.demo-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
}

.demo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    background: var(--color-primary-glow);
    border-radius: var(--radius-md);
    color: var(--color-primary);
}

.demo-badge {
    padding: 0.25rem 0.75rem;
    background: var(--color-primary);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-bg);
    text-transform: uppercase;
}

.demo-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.demo-description {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.demo-preview {
    grid-column: 2;
    grid-row: 1 / -1;
}

.demo-preview-placeholder {
    height: 100%;
    min-height: 200px;
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--space-lg);
    overflow: hidden;
}

.mock-chart {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    height: 120px;
    width: 100%;
}

.mock-bar {
    flex: 1;
    height: var(--height);
    background: linear-gradient(to top, var(--color-primary), rgba(6, 182, 212, 0.3));
    border-radius: 4px 4px 0 0;
    animation: barGrow 1s ease forwards;
    transform-origin: bottom;
}

@keyframes barGrow {
    from { transform: scaleY(0); }
    to { transform: scaleY(1); }
}

.mock-bar:nth-child(1) { animation-delay: 0.1s; }
.mock-bar:nth-child(2) { animation-delay: 0.2s; }
.mock-bar:nth-child(3) { animation-delay: 0.3s; }
.mock-bar:nth-child(4) { animation-delay: 0.4s; }
.mock-bar:nth-child(5) { animation-delay: 0.5s; }
.mock-bar:nth-child(6) { animation-delay: 0.6s; }

.demo-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-primary);
    font-weight: 600;
    transition: gap var(--transition-fast);
}

.demo-link:hover {
    gap: var(--space-sm);
}

.demo-coming {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--color-bg-card);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* ===================================
   Industries Section
   =================================== */

.industries {
    background: var(--color-bg-elevated);
}

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

.industries-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.industry-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.25rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    border-radius: 100px;
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
}

.industry-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

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

/* ===================================
   About Section
   =================================== */

.about {
    background: var(--color-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.about-content .section-tag {
    margin-bottom: var(--space-sm);
}

.about-content .section-title {
    text-align: left;
    margin-bottom: var(--space-lg);
}

.about-text {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.about-text a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.about-text a:hover {
    color: var(--color-text);
}

.about-links {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.25rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
}

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

.about-visual {
    display: flex;
    justify-content: center;
}

.about-card {
    position: relative;
    width: 100%;
    max-width: 320px;
    padding: 3px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-xl);
}

.about-card-content {
    background: var(--color-bg-elevated);
    border-radius: calc(var(--radius-xl) - 3px);
    padding: var(--space-xl);
    text-align: center;
}

.about-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 5rem;
    height: 5rem;
    margin: 0 auto var(--space-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-lg);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-bg);
}

.about-card h3 {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.about-card p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.about-card-divider {
    width: 100%;
    height: 1px;
    background: var(--color-border);
    margin: var(--space-md) 0;
}

.about-company {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.875rem;
}

.about-location {
    color: var(--color-text-muted);
}

/* ===================================
   Contact Section
   =================================== */

.contact {
    background: linear-gradient(to bottom, var(--color-bg), var(--color-bg-elevated));
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-text {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
}

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

.footer {
    padding: var(--space-xl) 0;
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border-light);
}

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

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.footer-brand .logo-mark {
    width: 2rem;
    height: 2rem;
    font-size: 0.75rem;
}

.footer-text {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.footer-divider {
    width: 100%;
    max-width: 200px;
    height: 1px;
    background: var(--color-border);
    margin: var(--space-lg) auto;
}

.footer-bottom {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

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

.footer-bottom a:hover {
    text-decoration: underline;
}

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

@media (max-width: 1024px) {
    .demo-card-featured {
        grid-template-columns: 1fr;
    }
    
    .demo-preview {
        grid-column: 1;
        grid-row: auto;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .about-content .section-title {
        text-align: center;
    }
    
    .about-content {
        text-align: center;
    }
    
    .about-links {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .stat-divider {
        width: 3rem;
        height: 1px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .demos-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        gap: var(--space-xs);
    }
    
    .industry-item {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
    }
    
    .contact-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.0625rem;
    }
    
    .section {
        padding: var(--space-2xl) 0;
    }
    
    .logo-text {
        display: none;
    }
}