/* ============================================================
   هامات الرياض — نظام التصميم (Neo-Saudi Design System)
   ============================================================ */

/* --- Design Tokens --- */
:root {
    --obsidian: #0A0A0A;
    --neon-green: #39FF14;
    --luxury-gold: #D4AF37;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-hover: rgba(255, 255, 255, 0.08);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Almarai', sans-serif;
    background-color: var(--obsidian);
    color: white;
    overflow-x: hidden;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Glassmorphism --- */
.neo-glass {
    background: var(--glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
}

.neo-glass:hover {
    background: var(--glass-hover);
}

/* --- Glow Effects --- */
.neon-glow-green {
    box-shadow: 0 0 20px rgba(57, 255, 20, 0.3), 0 0 40px rgba(57, 255, 20, 0.1);
}

.neon-text-green {
    color: var(--neon-green);
    text-shadow: 0 0 8px rgba(57, 255, 20, 0.5), 0 0 30px rgba(57, 255, 20, 0.2);
}

.gold-border {
    border-color: var(--luxury-gold);
}

/* --- Sadu Pattern Background --- */
.sadu-pattern {
    background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h20L10 10 0 0zm20 20H0l10-10 10 10z' fill='%23D4AF37' fill-opacity='0.02'/%3E%3C/svg%3E");
}

/* --- Vignette Overlay --- */
.vignette {
    background: radial-gradient(circle, transparent 40%, rgba(0, 0, 0, 0.8) 100%);
}

/* --- Text Shadow --- */
.text-shadow {
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

/* ============================================================
   Animations
   ============================================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(57, 255, 20, 0.3); }
    50% { box-shadow: 0 0 40px rgba(57, 255, 20, 0.6); }
}

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

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.animate-fade {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-fade-left {
    opacity: 0;
    animation: fadeInLeft 0.8s ease-out forwards;
}

.animate-fade-right {
    opacity: 0;
    animation: fadeInRight 0.8s ease-out forwards;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* Scroll-triggered reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ============================================================
   Header
   ============================================================ */

.header-scrolled {
    background: rgba(10, 10, 10, 0.85) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1rem !important;
    padding-bottom: 1rem !important;
}

/* ============================================================
   Custom Scrollbar (Webkit)
   ============================================================ */

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--obsidian);
}

::-webkit-scrollbar-thumb {
    background: rgba(212, 175, 55, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(212, 175, 55, 0.5);
}

/* ============================================================
   Stat Counter
   ============================================================ */

.stat-number {
    font-variant-numeric: tabular-nums;
    transition: all 0.3s ease;
}

/* ============================================================
   Project Cards — hover lift
   ============================================================ */

.project-card {
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.5s ease;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* ============================================================
   Button shimmer effect
   ============================================================ */

.btn-shimmer {
    position: relative;
    overflow: hidden;
}

.btn-shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    animation: shimmer 3s infinite;
}

/* ============================================================
   Selection Color
   ============================================================ */

::selection {
    background: rgba(57, 255, 20, 0.3);
    color: white;
}

/* ============================================================
   Media Query — Mobile fixes
   ============================================================ */

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem !important;
        line-height: 1.4 !important;
    }

    .stat-number {
        font-size: 2rem !important;
    }
}

/* ============================================================
   Line clamp utilities
   ============================================================ */

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}