/* ==========================================================================
   CSS Variables & Premium Tokens
   ========================================================================== */
:root {
    /* Colors - High-End Corporate Solar Theme */
    --primary: #f59e0b; /* Rich Amber */
    --primary-hover: #d97706;
    --primary-light: rgba(245, 158, 11, 0.1);
    --primary-glow: rgba(245, 158, 11, 0.4);
    
    --secondary: #3b82f6; /* Trust Blue */
    --accent: #10b981; /* Eco Green */
    
    --dark-bg: #050a15; /* Ultra Deep Navy/Black */
    --dark-surface: #0f172a;
    --dark-border: rgba(255, 255, 255, 0.08);
    
    --light-bg: #f8fafc;
    --light-surface: #ffffff;
    --light-border: rgba(0, 0, 0, 0.06);
    
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-light: #f8fafc;
    --text-light-muted: #94a3b8;
    
    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #050a15 100%);
    --gradient-glow: radial-gradient(circle at center, var(--primary-glow) 0%, transparent 70%);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-display: 'Outfit', -apple-system, sans-serif;
    
    /* Layout & Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;
    
    /* Radii */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;
    
    /* Shadows - Premium Soft Shadows */
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 24px 0 var(--primary-glow);
    --shadow-soft: 0 20px 40px -10px rgba(0, 0, 0, 0.08);
    --shadow-heavy: 0 30px 60px -15px rgba(0, 0, 0, 0.3);
    
    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.2s var(--ease-out-expo);
    --transition-base: 0.4s var(--ease-out-expo);
    --transition-slow: 0.8s var(--ease-out-expo);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--text-main);
    line-height: 1.7;
    background-color: var(--light-bg);
    overflow-x: hidden;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.1;
    color: inherit;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: clamp(3rem, 6vw, 5rem); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: clamp(2.5rem, 5vw, 3.5rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.75rem, 3vw, 2.25rem); }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
    color: var(--text-muted);
}

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

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

ul { list-style: none; }

/* ==========================================================================
   Utilities & Layout
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

/* Colors & Backgrounds */
.bg-light { background-color: var(--light-bg); }
.bg-white { background-color: var(--light-surface); }
.bg-dark { background-color: var(--dark-bg); color: var(--text-light); }
.bg-dark p { color: var(--text-light-muted); }

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

/* Glassmorphism */
.glass-panel {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: var(--shadow-glass);
}

.glass-panel-dark {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--dark-border);
    box-shadow: var(--shadow-glass);
}

/* ==========================================================================
   Buttons & CTAs
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.125rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    gap: 0.75rem;
    border: none;
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(255,255,255,0.2);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-base);
    z-index: -1;
}

.btn:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--dark-bg);
    box-shadow: 0 10px 25px -5px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px -5px rgba(245, 158, 11, 0.6);
}

.btn-secondary {
    background: var(--light-surface);
    color: var(--text-main);
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--light-border);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    border-color: var(--primary);
}

.btn-outline-light {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--dark-border);
}

.btn-outline-light:hover {
    background: var(--text-light);
    color: var(--dark-bg);
}

.btn-glow {
    animation: pulse-glow 3s infinite alternate;
}

@keyframes pulse-glow {
    0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); }
    100% { box-shadow: 0 0 20px 10px rgba(245, 158, 11, 0); }
}

/* ==========================================================================
   Header & Nav
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-base);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    padding: var(--spacing-sm) 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--light-border);
    box-shadow: var(--shadow-sm);
}

.navbar:not(.scrolled) .nav-links a,
.navbar:not(.scrolled) .logo {
    color: var(--text-light); /* Assuming hero is dark */
}

.navbar.scrolled .nav-links a,
.navbar.scrolled .logo {
    color: var(--text-main);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
}

.logo i { color: var(--primary); font-size: 1.75rem; }
.logo-accent { font-weight: 400; opacity: 0.7; }

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-weight: 600;
    font-size: 1rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0; width: 0; height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
}

.nav-links a:hover::after { width: 100%; }

.nav-cta {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    background: var(--light-surface);
    color: var(--text-main) !important;
    border-radius: var(--radius-full);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.navbar.scrolled .nav-cta {
    background: var(--dark-bg);
    color: var(--text-light) !important;
}

/* ==========================================================================
   Hero Section - Premium Cinematic
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -2;
}

.hero-bg img {
    width: 100%; height: 100%;
    object-fit: cover;
    animation: zoom-in 20s ease-out forwards;
}

@keyframes zoom-in {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(100deg, rgba(5,10,21,0.95) 0%, rgba(5,10,21,0.6) 50%, rgba(5,10,21,0.3) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 850px;
    color: var(--text-light);
    position: relative;
    z-index: 10;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--primary);
    backdrop-filter: blur(10px);
}

.hero-title {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.05;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light-muted);
    max-width: 650px;
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.trust-signals {
    display: flex;
    gap: 2rem;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--dark-border);
}

.trust-signal-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-weight: 500;
}

.trust-signal-item i {
    color: var(--accent);
    font-size: 1.25rem;
    background: rgba(16, 185, 129, 0.1);
    padding: 0.5rem;
    border-radius: 50%;
}

/* ==========================================================================
   Floating Trust Bar
   ========================================================================== */
.trust-bar-wrapper {
    position: relative;
    margin-top: -60px;
    z-index: 20;
    padding: 0 var(--spacing-lg);
}

.trust-bar {
    max-width: 1100px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item {
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -1rem; top: 10%; height: 80%; width: 1px;
    background: var(--light-border);
}

.stat-number {
    font-size: 3rem;
    font-family: var(--font-display);
    font-weight: 800;
    color: var(--text-main);
    line-height: 1;
    margin-bottom: 0.5rem;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section-label {
    color: var(--primary);
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
    display: block;
}

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

/* ==========================================================================
   Services Section (Premium Cards)
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--light-surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--light-border);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(245, 158, 11, 0.3);
}

.service-icon-wrap {
    width: 70px; height: 70px;
    border-radius: var(--radius-md);
    background: var(--light-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon-wrap {
    background: var(--gradient-gold);
    color: white;
    transform: scale(1.1);
}

/* ==========================================================================
   Split Layout (Why Choose Us)
   ========================================================================== */
.split-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.split-image-container {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-heavy);
}

.split-image-container img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.split-image-container:hover img {
    transform: scale(1.05);
}

.premium-badge-floating {
    position: absolute;
    bottom: -2rem; right: -2rem;
    padding: 1.5rem 2rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
    z-index: 10;
}

.premium-badge-floating i {
    font-size: 2.5rem;
    color: var(--primary);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: var(--spacing-xl);
}

.feature-item {
    display: flex;
    gap: 1.25rem;
}

.feature-icon {
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.feature-item h4 {
    margin-bottom: 0.25rem;
}

.feature-item p {
    margin-bottom: 0;
    font-size: 1rem;
}

/* ==========================================================================
   Dark Benefits Section
   ========================================================================== */
.benefits-section {
    position: relative;
    overflow: hidden;
}

.bg-glow {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 80vw; height: 80vw;
    background: var(--gradient-glow);
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.benefit-card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: transform var(--transition-base);
}

.benefit-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.2);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

/* ==========================================================================
   Showcase / Gallery
   ========================================================================== */
.showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.showcase-card {
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
    aspect-ratio: 3/4;
    cursor: pointer;
}

.showcase-card img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.showcase-overlay {
    position: absolute;
    bottom: 0; left: 0; width: 100%;
    padding: var(--spacing-xl);
    background: linear-gradient(to top, rgba(5,10,21,0.9), transparent);
    color: white;
    transform: translateY(20px);
    opacity: 0.9;
    transition: all var(--transition-base);
}

.showcase-card:hover img {
    transform: scale(1.08);
}

.showcase-card:hover .showcase-overlay {
    transform: translateY(0);
    opacity: 1;
}

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonial-wrapper {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.quote-mark {
    position: absolute;
    top: -40px; left: -20px;
    font-size: 8rem;
    color: var(--primary-light);
    font-family: serif;
    line-height: 1;
    z-index: 0;
}

.testimonial-card {
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    position: relative;
    z-index: 1;
    border: 1px solid var(--light-border);
}

.stars {
    color: var(--primary);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    display: flex;
    gap: 0.25rem;
}

.testimonial-text {
    font-size: 1.5rem;
    line-height: 1.6;
    color: var(--text-main);
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
}

.author-profile {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.author-img {
    width: 70px; height: 70px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid white;
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Contact Section & Form
   ========================================================================== */
.contact-section {
    background: var(--dark-bg);
    color: var(--text-light);
    position: relative;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.contact-info-list {
    margin-top: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.contact-icon {
    width: 60px; height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--dark-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
}

.contact-form-container {
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-light);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control {
    width: 100%;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    color: white;
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.1);
}

.form-control::placeholder {
    color: var(--text-light-muted);
}

/* ==========================================================================
   Animations & Reveal Effects
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

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

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

/* ==========================================================================
   Responsive
   ========================================================================== */
.mobile-menu-btn {
    display: none;
    background: none; border: none;
    font-size: 1.5rem;
    color: inherit;
    cursor: pointer;
}

@media (max-width: 1024px) {
    .trust-bar { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .stat-item:nth-child(2)::after { display: none; }
    .split-section, .contact-layout { grid-template-columns: 1fr; gap: 4rem; }
    .premium-badge-floating { right: 2rem; bottom: 2rem; }
}

@media (max-width: 768px) {
    .nav-links, .nav-cta { display: none; }
    .mobile-menu-btn { display: block; }
    
    .hero { padding-top: 100px; text-align: center; }
    .hero-actions { justify-content: center; }
    .trust-signals { justify-content: center; }
    
    h1 { font-size: 2.5rem; }
    .section { padding: var(--spacing-2xl) 0; }
    
    .trust-bar-wrapper { margin-top: -30px; }
    .showcase-grid { grid-template-columns: 1fr; }
    
    .contact-form-container { padding: var(--spacing-lg); }
}

@media (max-width: 480px) {
    .trust-bar { grid-template-columns: 1fr; }
    .stat-item::after { display: none; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
}