/* style.css */

/* --- CSS VARIABLES --- */
:root {
    --page-bg: #f9fafb;       
    --page-text: #111827;     
    --accent: #1d4ed8;
    --border-color: #e5e7eb;
}

@media (prefers-color-scheme: dark) {
    :root {
        --page-bg: #0f172a;       
        --page-text: #f9fafb;     
        --accent: #3b82f6;        
        --border-color: #374151; 
    }
}

/* Base Styles */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--page-bg);
    color: var(--page-text);
}

/* --- CINEMATIC NOISE OVERLAY --- */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
    opacity: 0.03; 
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* --- ALWAYS DARK LUXURY SECTIONS (Hero & Services) --- */
.shared-dark-bg {
    background: radial-gradient(circle at center top, #334155, #0f172a);
    color: #ffffff; 
    position: relative;
    overflow: hidden;
}

/* Hero & Glass Card Styles */
#hero {
    /* UPDATED: Lower perspective = More dramatic 3D effect */
    perspective: 800px;
}

.frosted-glass-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border-radius: 24px;
    padding: 2rem;
    width: 95%;
    max-width: 1280px; 
    position: relative;
    overflow: hidden;
    margin: 0 auto;
    transform-style: preserve-3d; 
}

@media (min-width: 768px) {
    .frosted-glass-card {
        padding: 3rem;
        width: 90%;
    }
}

/* --- SPOTLIGHT EFFECT (Why Us Cards) --- */
.spotlight-grid {
    position: relative;
}

.feature-card {
    position: relative;
    background-color: var(--page-bg);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    overflow: hidden;
}

/* The Spotlight Glow */
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(800px circle at var(--mouse-x) var(--mouse-y), rgba(59, 130, 246, 0.15), transparent 40%);
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
    z-index: 3;
}

.spotlight-grid:hover .feature-card::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 20px -10px rgba(0,0,0,0.1);
}

/* --- ANIMATED HEADER --- */
.header-animated-bg {
    background: linear-gradient(270deg, #111827, #1e293b, #172554, #0f172a);
    background-size: 400% 400%;
    animation: gradientMove 15s ease infinite;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
@keyframes gradientMove {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* --- COMPONENTS --- */

/* Luxury Gradient Text */
.text-gradient-luxury {
    background: linear-gradient(135deg, #ffffff 0%, #94a3b8 50%, #ffffff 100%);
    background-size: 200% auto;
    color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    animation: shine 5s linear infinite;
    display: inline-block;
}
@keyframes shine { to { background-position: 200% center; } }

/* Glass Tabs */
.glass-tab {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #9ca3af; 
    transition: all 0.3s ease;
    border-radius: 9999px;
}
.glass-tab:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}
.glass-tab.tab-active {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    color: #ffffff;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
}

/* Process Steps */
.process-step-header { border-bottom: 1px solid var(--border-color); }
.process-step-header.open .arrow { transform: rotate(45deg); }
.process-step-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
}

/* Nav Links */
.nav-link-light { color: #cbd5e1; position: relative; }
.nav-link-light:hover { color: #ffffff; }
.nav-link-light::after {
    content: ''; position: absolute; width: 100%; transform: scaleX(0);
    height: 1px; bottom: -2px; left: 0; background-color: #ffffff;
    transform-origin: bottom right; transition: transform 0.3s ease-out;
}
.nav-link-light:hover::after { transform: scaleX(1); transform-origin: bottom left; }

/* Mobile Menu */
#mobile-menu { transition: opacity 0.3s ease-in-out, visibility 0.3s; }
#mobile-menu.hidden { opacity: 0; visibility: hidden; display: flex; }
#mobile-menu:not(.hidden) { opacity: 1; visibility: visible; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--page-bg); }
::-webkit-scrollbar-thumb { background: #334155; border-radius: 4px; }

/* Utilities */
.animate-pulse-slow { animation: pulse-slow 8s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
@keyframes pulse-slow {
    0%, 100% { opacity: 0.1; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.2; transform: translate(-50%, -50%) scale(1.05); }
}
.animate-fade-in { animation: fadeIn 0.5s ease-out forwards; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }