/* ============================================================
   LUMINATECH LED — Landing Page Styles
   Mobile-first, glassmorphism, clean minimal design
   ============================================================ */

/* ===================== CSS CUSTOM PROPERTIES ===================== */
:root {
    /* Colors */
    --color-bg: #f8f9fc;
    --color-bg-alt: #ffffff;
    --color-text: #1a1a2e;
    --color-text-secondary: #6b7280;
    --color-text-light: #9ca3af;
    --color-accent: #3b82f6;
    --color-accent-dark: #2563eb;
    --color-accent-light: #93c5fd;
    --color-glass-bg: rgba(255, 255, 255, 0.6);
    --color-glass-border: rgba(255, 255, 255, 0.8);
    --color-glass-shadow: rgba(59, 130, 246, 0.08);

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 50%, #f8f9fc 100%);
    --gradient-accent: linear-gradient(135deg, #3b82f6, #8b5cf6);
    --gradient-text: linear-gradient(135deg, #3b82f6, #6366f1, #8b5cf6);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* 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: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 60px rgba(59, 130, 246, 0.15);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-slower: 0.8s ease;

    /* Layout */
    --container-max: 1200px;
    --navbar-height: 72px;
}

/* ===================== RESET & BASE ===================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

img, svg {
    display: block;
    max-width: 100%;
}

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

ul {
    list-style: none;
}

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

/* ===================== UTILITY CLASSES ===================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Glassmorphism base */
.glass {
    background: var(--color-glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

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

/* ===================== ANIMATIONS ===================== */
/* Fade-in up on scroll */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered delays for grid items */
.animate-on-scroll:nth-child(1) { transition-delay: 0s; }
.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }

/* ===================== NAVBAR ===================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    z-index: 1000;
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

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

.nav-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

/* Hamburger menu toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: calc(var(--navbar-height) + var(--spacing-xl)) var(--spacing-lg) var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    transition: right var(--transition-base);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
}

.nav-menu.open {
    right: 0;
}

.nav-link {
    font-size: var(--font-size-lg);
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-accent);
}

.nav-cta {
    color: var(--color-accent) !important;
    font-weight: 600;
}

/* ===================== BUTTONS ===================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-accent);
    color: #fff;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-model {
    background: var(--gradient-accent);
    color: #fff;
    width: 100%;
    margin-top: var(--spacing-md);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.25);
}

.btn-model:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.35);
}

/* ===================== HERO SECTION ===================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-hero);
    overflow: hidden;
    padding: calc(var(--navbar-height) + var(--spacing-3xl)) var(--spacing-md) var(--spacing-3xl);
}

/* Animated glow effects simulating LED light */
.hero-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    top: -100px;
    right: -150px;
    animation: glowPulse 8s ease-in-out infinite;
    pointer-events: none;
}

.hero-glow-secondary {
    width: 400px;
    height: 400px;
    top: auto;
    right: auto;
    bottom: -100px;
    left: -100px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    animation: glowPulse 10s ease-in-out infinite reverse;
}

@keyframes glowPulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.15); opacity: 1; }
}

/* Floating particles */
.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(59, 130, 246, 0.3);
    border-radius: 50%;
    animation: particleFloat linear infinite;
}

@keyframes particleFloat {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.hero-subtitle {
    font-size: clamp(var(--font-size-base), 2.5vw, var(--font-size-xl));
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
}

.hero-subtitle strong {
    color: var(--color-text);
    font-weight: 700;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    margin-bottom: var(--spacing-2xl);
}

/* Hero stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-unit {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: 500;
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--color-text-light);
    border-bottom: 2px solid var(--color-text-light);
    transform: rotate(45deg);
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ===================== SECTION HEADERS ===================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(59, 130, 246, 0.08);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.5px;
}

.section-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===================== FEATURES SECTION ===================== */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-alt);
}

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

.feature-card {
    padding: var(--spacing-xl);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), 0 0 80px rgba(59, 130, 246, 0.12);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-accent);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

.feature-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.feature-metric {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.metric-value {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.metric-unit {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    font-weight: 500;
}

/* ===================== MODELS SECTION ===================== */
.models {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-hero);
}

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

.model-card {
    padding: var(--spacing-xl);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    position: relative;
    overflow: hidden;
}

.model-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), 0 0 80px rgba(59, 130, 246, 0.12);
}

.model-header {
    margin-bottom: var(--spacing-md);
}

.model-badge {
    display: inline-block;
    padding: 4px var(--spacing-sm);
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.model-badge-popular {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.model-badge-pro {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
}

.model-name {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    letter-spacing: -1px;
}

/* Visual circle representing the lamp */
.model-visual {
    margin: var(--spacing-lg) 0;
}

.model-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e0e7ff, #f0f4ff);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 0 30px rgba(59, 130, 246, 0.1), 0 0 40px rgba(59, 130, 246, 0.08);
}

.model-circle-inner {
    width: 60%;
    height: 60%;
    border-radius: 50%;
    background: linear-gradient(135deg, #fff, #e8f0fe);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
}

.model-circle-lg { width: 120px; height: 120px; }
.model-circle-xl { width: 140px; height: 140px; }
.model-circle-xxl { width: 160px; height: 160px; }

.model-specs {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.model-specs li {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    font-size: var(--font-size-sm);
}

.model-specs li:last-child {
    border-bottom: none;
}

.spec-label {
    color: var(--color-text-secondary);
    font-weight: 500;
}

.spec-value {
    font-weight: 700;
    color: var(--color-text);
}

/* ===================== TEMPERATURE SECTION ===================== */
.temperature {
    position: relative;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
    background: var(--color-bg-alt);
}

/* Dynamic background that changes with temperature */
.temperature-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 179, 71, 0.08) 0%, transparent 50%);
    transition: background var(--transition-slower);
    pointer-events: none;
}

.temperature-container {
    position: relative;
    z-index: 2;
}

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

/* Lamp visual */
.lamp-visual {
    margin: var(--spacing-2xl) auto;
    position: relative;
}

.lamp-body {
    width: 120px;
    height: 40px;
    background: linear-gradient(180deg, #e5e7eb, #d1d5db);
    border-radius: 60px 60px 0 0;
    margin: 0 auto;
    position: relative;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
}

.lamp-glow {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 20px;
    background: #FFB347;
    border-radius: 50%;
    filter: blur(8px);
    transition: background var(--transition-slower), box-shadow var(--transition-slower);
    box-shadow: 0 0 30px #FFB347, 0 0 60px rgba(255, 179, 71, 0.4);
}

.lamp-face {
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 10px;
    background: #FFB347;
    border-radius: 0 0 35px 35px;
    transition: background var(--transition-slower), box-shadow var(--transition-slower);
    box-shadow: 0 4px 20px rgba(255, 179, 71, 0.5);
}

.lamp-beam {
    width: 200px;
    height: 250px;
    margin: 0 auto;
    background: linear-gradient(180deg, rgba(255, 179, 71, 0.15) 0%, transparent 100%);
    clip-path: polygon(30% 0%, 70% 0%, 100% 100%, 0% 100%);
    transition: background var(--transition-slower);
}

/* Temperature controls */
.temperature-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.temp-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-glass-bg);
    backdrop-filter: blur(10px);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    min-width: 100px;
}

.temp-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.temp-btn.active {
    border-color: var(--color-accent);
    background: rgba(59, 130, 246, 0.08);
    box-shadow: var(--shadow-md), 0 0 30px rgba(59, 130, 246, 0.1);
}

.temp-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    box-shadow: 0 0 10px currentColor;
}

.temp-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
}

.temp-kelvin {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
}

/* Temperature info */
.temperature-info {
    padding: var(--spacing-lg);
    background: var(--color-glass-bg);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-glass-border);
}

.temp-info-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-base);
}

.temp-info-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===================== USES SECTION ===================== */
.uses {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg);
}

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

.use-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg-alt);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.use-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.use-image {
    height: 200px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.use-image-home {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
}

.use-image-office {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
}

.use-image-shop {
    background: linear-gradient(135deg, #ede9fe, #ddd6fe);
}

.use-image-industrial {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
}

.use-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.1);
}

.use-icon-large {
    width: 80px;
    height: 80px;
    position: relative;
    z-index: 2;
}

.use-content {
    padding: var(--spacing-lg);
}

.use-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

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

.use-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.use-features li {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    padding-left: var(--spacing-lg);
    position: relative;
}

.use-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--gradient-accent);
    border-radius: 50%;
}

/* ===================== CTA SECTION ===================== */
.cta {
    position: relative;
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-hero);
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    animation: glowPulse 6s ease-in-out infinite;
}

.cta-container {
    position: relative;
    z-index: 2;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: var(--spacing-md);
}

.cta-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.cta-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.cta-trust {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.trust-item svg {
    color: var(--color-accent);
}

/* ===================== FOOTER ===================== */
.footer {
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    background: var(--color-text);
    color: #fff;
}

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

.footer-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    display: inline-block;
    margin-bottom: var(--spacing-sm);
}

.footer-desc {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.footer-heading {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.3px;
}

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

.footer-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

.footer-list li svg {
    flex-shrink: 0;
    color: var(--color-accent-light);
}

.footer-list a:hover {
    color: #fff;
}

.hours-time {
    margin-left: auto;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
}

.footer-legal a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: #fff;
}

/* ===================== RESPONSIVE — TABLET (768px+) ===================== */
@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }

    .nav-menu {
        position: static;
        width: auto;
        height: auto;
        background: none;
        backdrop-filter: none;
        padding: 0;
        flex-direction: row;
        gap: var(--spacing-lg);
        box-shadow: none;
    }

    .nav-link {
        font-size: var(--font-size-sm);
        padding: 0;
    }

    .hero-cta {
        flex-direction: row;
        justify-content: center;
    }

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

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

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

    .cta-actions {
        flex-direction: row;
        justify-content: center;
    }

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

    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* ===================== RESPONSIVE — DESKTOP (1024px+) ===================== */
@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .models-grid {
        grid-template-columns: repeat(4, 1fr);
    }

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

    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

/* ===================== RESPONSIVE — LARGE DESKTOP (1280px+) ===================== */
@media (min-width: 1280px) {
    .uses-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===================== REDUCED MOTION ===================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }
}