/* ==========================================
   ROWAD AL EBTIKAR - DESIGN SYSTEM v3.0
   High-Tech Industrial Luxury Theme
   ========================================== */

/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Readex+Pro:wght@300;400;500;600;700&family=Tajawal:wght@300;400;500;700;800;900&display=swap');

/* ==========================================
   CSS VARIABLES - DARK MODE (DEFAULT)
   ========================================== */
:root {
    /* Background Colors */
    --bg-primary: #020408;
    --bg-secondary: #0A0C10;
    --bg-tertiary: #12141A;

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Accent Colors - Cyan Neon */
    --accent-color: #00E5FF;
    --accent-glow: rgba(0, 229, 255, 0.7);
    --accent-dim: rgba(0, 229, 255, 0.1);
    --accent-darker: #00B8D4;

    /* Glowing Glassmorphism System */
    --glass-bg: rgba(2, 4, 8, 0.6);
    --glass-bg-light: rgba(10, 12, 16, 0.4);
    --glass-border: rgba(0, 229, 255, 0.3);
    --glass-border-subtle: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(24px);
    --glass-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 229, 255, 0.2);
    --glass-shadow-strong: 0 25px 50px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 229, 255, 0.4);

    /* Typography Scale */
    --font-primary: 'Inter', 'Tajawal', -apple-system, sans-serif;
    --font-display: 'Outfit', 'Readex Pro', sans-serif;

    --text-xs: clamp(0.75rem, 1.5vw, 0.875rem);
    --text-sm: clamp(0.875rem, 1.75vw, 1rem);
    --text-base: clamp(1rem, 2vw, 1.125rem);
    --text-lg: clamp(1.125rem, 2.5vw, 1.25rem);
    --text-xl: clamp(1.25rem, 3vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 4vw, 2rem);
    --text-3xl: clamp(2rem, 5vw, 3rem);
    --text-4xl: clamp(2.5rem, 6vw, 4rem);
    --text-massive: clamp(3rem, 8vw, 6rem);
    --text-hero: clamp(4rem, 10vw, 8rem);

    /* Spacing System */
    --space-xs: clamp(0.25rem, 1vw, 0.5rem);
    --space-sm: clamp(0.5rem, 1.5vw, 0.75rem);
    --space-md: clamp(0.75rem, 2vw, 1rem);
    --space-lg: clamp(1rem, 2.5vw, 1.5rem);
    --space-xl: clamp(1.5rem, 3vw, 2rem);
    --space-2xl: clamp(2rem, 4vw, 3rem);
    --space-3xl: clamp(3rem, 6vw, 5rem);
    --space-4xl: clamp(4rem, 8vw, 6rem);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-glow: 0.3s cubic-bezier(0.22, 1, 0.36, 1);

    /* Z-Index Scale */
    --z-base: 1;
    --z-dropdown: 10;
    --z-sticky: 20;
    --z-header: 100;
    --z-overlay: 200;
    --z-modal: 300;
}

/* ==========================================
   LIGHT MODE OVERRIDES
   ========================================== */
[data-theme="light"] {
    /* Background Colors */
    --bg-primary: #F8FAFC;
    --bg-secondary: #E2E8F0;
    --bg-tertiary: #CBD5E1;

    /* Text Colors */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #64748b;

    /* Accent Colors */
    --accent-color: #00B8D4;
    --accent-glow: rgba(0, 184, 212, 0.4);
    --accent-dim: rgba(0, 184, 212, 0.08);

    /* Glowing Glassmorphism - Frosted for Light */
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-bg-light: rgba(255, 255, 255, 0.5);
    --glass-border: rgba(0, 184, 212, 0.3);
    --glass-border-subtle: rgba(0, 0, 0, 0.08);
    --glass-shadow: 0 20px 40px rgba(0, 0, 0, 0.1), 0 0 15px rgba(0, 184, 212, 0.1);
    --glass-shadow-strong: 0 25px 50px rgba(0, 0, 0, 0.15), 0 0 25px rgba(0, 184, 212, 0.15);
}

/* ==========================================
   GLOBAL RESET & BASE STYLES
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    direction: ltr;
    text-align: start;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* RTL Support */
body[dir="rtl"] {
    direction: rtl;
    text-align: start;
}

/* ==========================================
   TYPOGRAPHY SYSTEM
   ========================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

h1 {
    font-size: var(--text-massive);
}

h2 {
    font-size: var(--text-4xl);
}

h3 {
    font-size: var(--text-3xl);
}

h4 {
    font-size: var(--text-2xl);
}

p {
    margin-block-end: var(--space-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

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

a:hover {
    color: var(--accent-color);
}

/* ==========================================
   GLOWING GLASSMORPHISM SYSTEM
   ========================================== */

/* Base Glass Panel */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
}

/* Glowing Glass Panel - The Hero Element */
.glass-panel--glowing {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow-strong);
    position: relative;
    overflow: hidden;
}

/* Glow Effect Pseudo-element */
.glass-panel--glowing::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 2px;
    background: linear-gradient(135deg, var(--accent-color), transparent, var(--accent-color));
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.5;
    animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

/* ==========================================
   NEON BUTTON SYSTEM
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding-block: var(--space-md);
    padding-inline: var(--space-xl);
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-glow);
    white-space: nowrap;
}

/* Neon Button - Primary Glowing */
.btn--neon {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-darker));
    color: var(--bg-primary);
    box-shadow:
        0 0 20px var(--accent-glow),
        0 0 40px rgba(0, 229, 255, 0.3),
        0 10px 30px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.btn--neon::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
}

.btn--neon:hover {
    transform: translateY(-2px);
    box-shadow:
        0 0 30px var(--accent-glow),
        0 0 60px rgba(0, 229, 255, 0.5),
        0 15px 40px rgba(0, 0, 0, 0.5);
}

.btn--neon:hover::before {
    transform: translateX(100%);
}

/* Ghost Button - Glass Style */
.btn--ghost {
    background: var(--glass-bg-light);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn--ghost:hover {
    background: var(--glass-bg);
    border-color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

/* Large Button */
.btn--large {
    padding-block: var(--space-lg);
    padding-inline: var(--space-2xl);
    font-size: var(--text-lg);
}

/* ==========================================
   GLOWING CYAN UNDERLINE
   ========================================== */
.nav-link {
    position: relative;
    padding-block-end: var(--space-xs);
}

.nav-link::after {
    content: '';
    position: absolute;
    inset-block-end: 0;
    inset-inline-start: 0;
    inline-size: 0;
    block-size: 2px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
    box-shadow: 0 0 10px var(--accent-glow);
    transition: inline-size var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    inline-size: 100%;
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

/* Container */
.container {
    max-inline-size: 1400px;
    margin-inline: auto;
    padding-inline: var(--space-xl);
}

.container--wide {
    max-inline-size: 1600px;
}

/* Section Spacing */
.section {
    padding-block: var(--space-4xl);
}

/* Massive Heading */
.massive-heading {
    font-size: var(--text-massive);
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hero Heading */
.hero-heading {
    font-size: var(--text-hero);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -0.04em;
    text-shadow: 0 0 40px var(--accent-glow);
}

/* Glow Text */
.glow-text {
    color: var(--accent-color);
    text-shadow:
        0 0 10px var(--accent-glow),
        0 0 20px var(--accent-glow),
        0 0 30px var(--accent-glow);
}

/* Fade In Animation */
@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fade-in-up 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* ==========================================
   RESPONSIVE BREAKPOINTS
   ========================================== */
@media (max-width: 1024px) {
    :root {
        --text-massive: clamp(2.5rem, 7vw, 4rem);
        --text-hero: clamp(3rem, 9vw, 5rem);
    }
}

@media (max-width: 768px) {
    :root {
        --text-massive: clamp(2rem, 6vw, 3rem);
        --text-hero: clamp(2.5rem, 8vw, 4rem);
        --space-4xl: clamp(2rem, 5vw, 3rem);
    }

    .container {
        padding-inline: var(--space-md);
    }
}