/* ============================================================
   OVER AND ABOVE — GLASSMORPHISM THEME
   ============================================================ */

/* === DESIGN TOKENS === */
:root {
    /* Colors */
    --color-bg: #0a0a0f;
    --color-bg-secondary: #111118;
    --color-text: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-muted: rgba(255, 255, 255, 0.4);
    --color-primary: #4F9CF9;
    --color-primary-hover: #3d8ae8;
    --color-secondary: #6C5CE7;
    --color-success: #2ED573;
    --color-warning: #FFA502;
    --color-danger: #FF4757;
    --color-accent: #00D2D3;

    /* Glass */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    --glass-bg-active: rgba(255, 255, 255, 0.12);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-hover: rgba(255, 255, 255, 0.2);
    --glass-blur: 20px;
    --glass-radius: 16px;
    --glass-radius-sm: 8px;
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-hero: clamp(2.5rem, 6vw, 5rem);

    /* 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;
    --spacing-section: clamp(4rem, 8vw, 8rem);

    /* Layout */
    --container-max: 1200px;
    --container-wide: 1400px;
    --header-height: 80px;

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

/* === 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-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
}

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

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

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

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

/* === GLASS CARD === */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}
.glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
}

/* === HEADER === */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    transition: background var(--transition-base);
}
.site-header.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.site-logo {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-text);
    letter-spacing: -0.02em;
}
.site-logo span {
    color: var(--color-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}
.nav-menu a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-sm) 0;
    position: relative;
}
.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}
.nav-menu a:hover {
    color: var(--color-text);
}
.nav-menu a:hover::after {
    width: 100%;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-sm);
}

/* === HERO === */
.hero-video {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(10, 10, 15, 0.4) 0%,
        rgba(10, 10, 15, 0.6) 50%,
        rgba(10, 10, 15, 0.95) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: var(--spacing-3xl);
}

.hero-content h1 {
    font-size: var(--font-size-hero);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.03em;
}
.hero-content h1 .highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.875rem 2rem;
    border-radius: var(--glass-radius-sm);
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--color-primary-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 156, 249, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--glass-border);
}
.btn-outline:hover {
    background: var(--glass-bg);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--color-text);
    border: 1px solid var(--glass-border);
}
.btn-glass:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
}

/* === SECTIONS === */
.section {
    padding: var(--spacing-section) 0;
}
.section-dark {
    background: var(--color-bg-secondary);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}
.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-3xl);
    max-width: 600px;
}
.text-center {
    text-align: center;
}
.text-center .section-subtitle {
    margin-left: auto;
    margin-right: auto;
}

/* === SERVICES GRID === */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    padding: var(--spacing-2xl);
}
.service-card .icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    display: block;
}
.service-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}
.service-card p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

/* === STATS BAR === */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    padding: var(--spacing-2xl) 0;
}
.stat-item {
    text-align: center;
}
.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    color: var(--color-primary);
    display: block;
}
.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* === ESTIMATE FORM === */
.estimate-form {
    max-width: 600px;
    margin: 0 auto;
}
.form-group {
    margin-bottom: var(--spacing-lg);
}
.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}
.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius-sm);
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}
.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 156, 249, 0.1);
}
.form-control::placeholder {
    color: var(--color-text-muted);
}
textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-success {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-success);
    font-size: var(--font-size-lg);
    display: none;
}
.form-success.show {
    display: block;
}

/* === FOOTER === */
.site-footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--glass-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-md);
    max-width: 300px;
}

.footer-col h4 {
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}
.footer-col ul {
    list-style: none;
}
.footer-col li {
    margin-bottom: var(--spacing-sm);
}
.footer-col a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}
.footer-col a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding-top: var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }

    .menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: var(--spacing-xl);
        padding: var(--spacing-2xl);
    }
    .nav-menu.open {
        display: flex;
    }
    .nav-menu a {
        font-size: var(--font-size-xl);
    }

    .hero-content {
        padding: var(--spacing-xl);
    }

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    .services-grid {
        grid-template-columns: 1fr;
    }
}