/* ============================================
   REXEL — Advanced Oryzo-inspired Design System
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg-primary: #050505;
  --bg-secondary: #0a0a0f;
  --bg-card: rgba(255,255,255,0.03);
  --bg-card-hover: rgba(255,255,255,0.06);
  --text-primary: #f5f5f7;
  --text-secondary: rgba(255,255,255,0.5);
  --text-muted: rgba(255,255,255,0.3);
  --accent: #0D6EFD;
  --accent-glow: rgba(13,110,253,0.4);
  --accent-subtle: rgba(13,110,253,0.1);
  --cyan: #22d3ee;
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 40px;
  --font-ar: 'Cairo', sans-serif;
  --font-en: 'Inter', sans-serif;
  --transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-en); background: var(--bg-primary);
  color: var(--text-primary); overflow-x: hidden;
  -webkit-font-smoothing: antialiased; line-height: 1.6;
}
html[dir="rtl"] body { font-family: var(--font-ar); }
a { text-decoration: none; color: inherit; display: inline-block; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }
input, textarea, select { font-family: inherit; }

/* ============================================
   PRELOADER
   ============================================ */
#preloader {
  position: fixed; inset: 0; z-index: 99999;
  background: var(--bg-primary); display: flex;
  flex-direction: column; align-items: center; justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
#preloader.loaded { opacity: 0; visibility: hidden; }
.loader-logo { font-size: 3rem; font-weight: 900; color: #fff; letter-spacing: -2px; margin-bottom: 20px; }
.loader-logo .dot { color: var(--accent); }
.loader-progress { font-size: 1rem; color: var(--text-secondary); font-variant-numeric: tabular-nums; }
.loader-bar-bg { width: 200px; height: 2px; background: rgba(255,255,255,0.1); margin-top: 10px; border-radius: 2px; overflow: hidden; }
.loader-bar { height: 100%; width: 0%; background: var(--accent); transition: width 0.1s linear; }

/* ============================================
   CUSTOM CURSOR
   ============================================ */
@media (pointer: fine) {
  body { cursor: none; }
  a, button, input, textarea, select { cursor: none; }
}
.cursor-dot, .cursor-outline {
  position: fixed; top: 0; left: 0; transform: translate(-50%, -50%);
  border-radius: 50%; z-index: 100000; pointer-events: none;
}
.cursor-dot { width: 6px; height: 6px; background: var(--accent); }
.cursor-outline {
  width: 40px; height: 40px; border: 1px solid rgba(13,110,253,0.5);
  transition: width 0.2s, height 0.2s, background 0.2s;
}
@media (pointer: coarse) {
  .cursor-dot, .cursor-outline { display: none !important; }
}
/* Cursor Hover States */
.cursor-outline.hover {
  width: 60px; height: 60px; background: rgba(13,110,253,0.1); border-color: transparent;
  backdrop-filter: invert(20%);
}

/* ============================================
   BACKGROUND BLOBS
   ============================================ */
.blob {
  position: fixed; border-radius: 50%; filter: blur(100px); z-index: -2;
  opacity: 0.3; pointer-events: none; animation: blob-float 20s infinite ease-in-out alternate;
}
.blob-1 { width: 500px; height: 500px; background: var(--accent); top: -200px; left: -200px; animation-delay: 0s; }
.blob-2 { width: 600px; height: 600px; background: var(--cyan); bottom: -300px; right: -200px; animation-delay: -5s; }

@keyframes blob-float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(100px, 50px) scale(1.2); }
}

/* --- Grain Overlay --- */
.grain-overlay {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none; opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* --- Container --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (min-width: 768px) { .container { padding: 0 40px; } }
@media (min-width: 1200px) { .container { padding: 0 60px; } }

/* --- Header --- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 20px 0; transition: all var(--transition);
}
.site-header.scrolled {
  background: rgba(5,5,5,0.85); backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border); padding: 12px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 1.75rem; font-weight: 900; letter-spacing: -0.03em; color: var(--text-primary); }
.logo .dot { color: var(--accent); }

/* Desktop Nav & Underline Hover */
.desktop-nav { display: none; align-items: center; gap: 32px; }
@media (min-width: 768px) { .desktop-nav { display: flex; } }
.nav-link {
  font-size: 0.875rem; color: var(--text-secondary); font-weight: 500;
  position: relative; padding: 5px 0; overflow: hidden;
}
.nav-link::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px;
  background: var(--accent); transform: translateX(-101%); transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { transform: translateX(0); }

/* Nav Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown-trigger { display: flex; align-items: center; gap: 4px; }
.nav-dropdown-menu {
  position: absolute; top: calc(100% + 12px); min-width: 240px; padding: 8px;
  background: rgba(15,15,20,0.95); backdrop-filter: blur(20px);
  border: 1px solid var(--border); border-radius: var(--radius-md);
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: all 0.3s; z-index: 50;
}
html[dir="rtl"] .nav-dropdown-menu { right: 0; }
html[dir="ltr"] .nav-dropdown-menu { left: 0; }
.nav-dropdown:hover .nav-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown-menu a { display: block; padding: 10px 14px; font-size: 0.8rem; color: var(--text-secondary); border-radius: var(--radius-sm); transition: all 0.2s; }
.nav-dropdown-menu a:hover { background: var(--bg-card-hover); color: var(--text-primary); padding-left: 20px; }
html[dir="rtl"] .nav-dropdown-menu a:hover { padding-left: 14px; padding-right: 20px; }

/* Header Right */
.header-right { display: flex; align-items: center; gap: 12px; }

/* Magnetic Buttons */
.magnetic-wrap { display: inline-block; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius-xl);
  background: var(--accent); color: #fff; font-weight: 700; font-size: 0.9rem;
  transition: background 0.3s, box-shadow 0.3s; box-shadow: 0 0 20px var(--accent-glow);
  position: relative; overflow: hidden;
}
.btn-primary::before {
  content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: translateX(-100%); transition: transform 0.5s;
}
.btn-primary:hover::before { transform: translateX(100%); }
.btn-primary:hover { box-shadow: 0 0 40px var(--accent-glow); }

.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius-xl);
  border: 1px solid var(--border-hover); color: var(--text-secondary);
  font-weight: 600; font-size: 0.9rem; transition: all 0.3s;
}
.btn-outline:hover { border-color: var(--accent); color: var(--text-primary); background: var(--accent-subtle); }

/* Language Switcher */
.lang-switcher { position: relative; }
.lang-btn {
  display: flex; align-items: center; gap: 6px; padding: 8px 12px; border-radius: var(--radius-sm);
  background: var(--bg-card); border: 1px solid var(--border); font-size: 0.75rem; font-weight: 600; color: var(--text-secondary); transition: all 0.3s;
}
.lang-btn:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.lang-options {
  position: absolute; top: calc(100% + 8px); right: 0; width: 140px; padding: 4px;
  background: rgba(15,15,20,0.95); backdrop-filter: blur(20px); border: 1px solid var(--border); border-radius: var(--radius-sm);
  opacity: 0; visibility: hidden; transform: translateY(4px); transition: all 0.3s; z-index: 50;
}
.lang-options.open { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-options a { display: block; padding: 8px 12px; font-size: 0.8rem; color: var(--text-secondary); border-radius: 6px; transition: all 0.2s; }
.lang-options a:hover { background: var(--bg-card-hover); color: var(--text-primary); }

/* Mobile Menu */
.mobile-toggle { display: flex; padding: 8px; color: var(--text-primary); }
@media (min-width: 768px) { .mobile-toggle { display: none; } }
.mobile-menu {
  position: fixed; inset: 0; z-index: 99; background: rgba(5,5,5,0.98); backdrop-filter: blur(20px);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px;
  opacity: 0; visibility: hidden; transition: all 0.4s;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a { font-size: 1.5rem; font-weight: 700; color: var(--text-secondary); transition: color 0.3s; }
.mobile-menu a:hover { color: var(--text-primary); }
.mobile-close { position: absolute; top: 20px; right: 20px; padding: 12px; color: var(--text-primary); z-index: 100; cursor: pointer; }
html[dir="rtl"] .mobile-close { left: 20px; right: auto; }
.mobile-menu { overflow-y: auto; padding-top: 80px; padding-bottom: 40px; justify-content: flex-start; }

/* ============================================
   HERO SECTION
   ============================================ */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 120px 0 80px; }
#particle-canvas { position: absolute; inset: 0; z-index: 0; }
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 900px; margin: 0 auto; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: var(--radius-xl);
  background: var(--accent-subtle); border: 1px solid rgba(13,110,253,0.2); font-size: 0.65rem; font-weight: 700;
  color: var(--accent); letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 28px;
}
.hero-badge .pulse { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.5); } }

/* Text Split Animation Setup */
.hero-title {
  font-size: clamp(2.5rem, 7vw, 5.5rem); font-weight: 900; line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 24px;
}
.hero-title .highlight {
  color: var(--cyan);
  text-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
}
/* Subtitle Word Split */
.split-word { display: inline-block; overflow: hidden; vertical-align: bottom; padding-bottom: 0.15em; margin-bottom: -0.15em; }
.split-word span { display: inline-block; transform: translateY(100%); opacity: 0; transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s; }
.hero-subtitle { font-size: clamp(1rem, 2vw, 1.25rem); color: var(--text-secondary); max-width: 600px; margin: 0 auto 40px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }

/* ============================================
   SERVICES & 3D CARDS
   ============================================ */
.section { padding: 120px 0; position: relative; }
@media (max-width: 767px) { .section { padding: 80px 0; } }

.section-label { display: inline-flex; align-items: center; gap: 8px; font-size: 0.7rem; font-weight: 700; color: var(--accent); letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 16px; }
.section-label .line { width: 24px; height: 1px; background: var(--accent); }
.section-title { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 900; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 20px; }
.section-subtitle { font-size: 1.05rem; color: var(--text-secondary); max-width: 550px; line-height: 1.8; }

.services-grid { display: grid; gap: 24px; grid-template-columns: 1fr; }
@media (min-width: 768px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }

/* 3D Tilt Card */
.tilt-card { transform-style: preserve-3d; transform: perspective(1000px); }
.service-card {
  padding: 36px 28px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  position: relative; overflow: hidden; transform: translateZ(20px); transition: box-shadow 0.3s, border-color 0.3s;
}
.service-card:hover { border-color: var(--accent-subtle); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }
/* Hover Glow Tracker */
.glow-effect {
  position: absolute; width: 400px; height: 400px; background: radial-gradient(circle, var(--accent-subtle) 0%, transparent 60%);
  border-radius: 50%; pointer-events: none; opacity: 0; transition: opacity 0.3s; transform: translate(-50%, -50%); z-index: 0;
}
.service-card:hover .glow-effect { opacity: 1; }

.service-icon {
  width: 56px; height: 56px; margin-bottom: 24px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); background: var(--bg-card); border: 1px solid var(--border); color: var(--accent);
  transform: translateZ(30px); transition: transform 0.3s, background 0.3s;
}
.service-card:hover .service-icon { background: var(--accent-subtle); border-color: var(--accent); transform: translateZ(40px); }

.service-card h3 { font-size: 1.25rem; font-weight: 800; margin-bottom: 12px; position: relative; z-index: 1; transform: translateZ(25px); }
.service-card p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; position: relative; z-index: 1; transform: translateZ(20px); }
.service-card .card-link {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 24px; font-size: 0.85rem; font-weight: 700;
  color: var(--accent); position: relative; z-index: 1; transition: gap 0.3s; transform: translateZ(30px);
}
.service-card:hover .card-link { gap: 12px; }

/* ============================================
   STATS
   ============================================ */
.stats-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 500px; margin: 0 auto; }
@media (min-width: 768px) { .stats-row { grid-template-columns: repeat(4, 1fr); max-width: 800px; } }
.stat-item { text-align: center; padding: 32px 0; }
.stat-number { font-size: clamp(2.5rem, 5vw, 3.5rem); font-weight: 900; color: var(--accent); line-height: 1; }
.stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 8px; font-weight: 500; }

/* ============================================
   AI TOOLS
   ============================================ */
.ai-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 40px; position: relative; overflow: hidden;
}
.ai-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--accent), transparent); }
.ai-card h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 8px; }
.ai-card .ai-subtitle { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 28px; line-height: 1.7; }
/* Input focus microinteractions */
.ai-input, .ai-select, .form-input {
  width: 100%; padding: 16px 20px; background: rgba(255,255,255,0.02); border: 1px solid var(--border);
  border-radius: var(--radius-md); color: var(--text-primary); font-size: 0.9rem; transition: all 0.3s; outline: none;
}
.ai-input:focus, .ai-select:focus, .form-input:focus {
  background: rgba(255,255,255,0.05); border-color: var(--accent); box-shadow: 0 0 15px var(--accent-subtle); transform: translateY(-2px);
}
.ai-input::placeholder, .form-input::placeholder { color: var(--text-muted); }
.ai-row { display: grid; gap: 16px; margin-bottom: 16px; }
@media (min-width: 640px) { .ai-row.two-col { grid-template-columns: 1fr 1fr; } }
.ai-btn { display: inline-flex; align-items: center; gap: 8px; padding: 16px 32px; border-radius: var(--radius-md); background: var(--accent); color: #fff; font-weight: 700; font-size: 0.95rem; transition: all var(--transition); box-shadow: 0 0 20px var(--accent-glow); }
.ai-btn:hover { box-shadow: 0 0 40px var(--accent-glow); transform: translateY(-2px); }
.ai-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.ai-result { margin-top: 28px; }
.ai-result-card { background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 24px; margin-bottom: 12px; }
.ai-result-card h4 { font-size: 1.05rem; font-weight: 700; color: var(--accent); margin-bottom: 8px; }
.ai-result-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }
.spinner { width: 24px; height: 24px; border: 2px solid rgba(255,255,255,0.3); border-radius: 50%; border-top-color: #fff; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   ABOUT
   ============================================ */
.about-grid { display: grid; gap: 48px; align-items: center; }
@media (min-width: 768px) { .about-grid { grid-template-columns: 1fr 1fr; } }
.about-image { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); }
.about-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.about-image:hover img { transform: scale(1.05); }

/* ============================================
   CONTACT
   ============================================ */
.contact-card { max-width: 640px; margin: 0 auto; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 48px; }
@media (max-width: 640px) { .contact-card { padding: 28px; } }
.form-group { margin-bottom: 24px; position: relative; }
.form-label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; transition: color 0.3s; }
.form-input:focus + .form-label, .form-group:focus-within .form-label { color: var(--accent); }
.form-submit { width: 100%; padding: 18px; background: var(--accent); color: #fff; border: none; border-radius: var(--radius-md); font-weight: 700; font-size: 1rem; transition: all var(--transition); display: flex; align-items: center; justify-content: center; gap: 8px; box-shadow: 0 0 20px var(--accent-glow); }
.form-submit:hover { box-shadow: 0 0 40px var(--accent-glow); transform: translateY(-2px); }

/* ============================================
   FOOTER
   ============================================ */
.site-footer { padding: 48px 0; border-top: 1px solid var(--border); }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 24px; text-align: center; }
@media (min-width: 768px) { .footer-inner { flex-direction: row; justify-content: space-between; text-align: start; } }
.footer-social { display: flex; gap: 16px; }
.footer-social a { color: var(--text-muted); transition: color 0.3s, transform 0.3s; }
.footer-social a:hover { color: var(--accent); transform: translateY(-3px); }
.footer-copy { font-size: 0.8rem; color: var(--text-muted); padding-top: 24px; border-top: 1px solid var(--border); text-align: center; margin-top: 24px; }

/* ============================================
   FLOATING BUTTONS
   ============================================ */
.whatsapp-float { position: fixed; bottom: 28px; z-index: 90; width: 56px; height: 56px; border-radius: 50%; background: #25D366; color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(37,211,102,0.3); transition: all 0.3s; }
html[dir="rtl"] .whatsapp-float { left: 28px; } html[dir="ltr"] .whatsapp-float { right: 28px; }
.whatsapp-float:hover { transform: scale(1.1); }
.float-cta { position: fixed; bottom: 28px; z-index: 90; display: flex; align-items: center; gap: 10px; padding: 14px 24px; border-radius: var(--radius-xl); background: linear-gradient(135deg, var(--accent), #0dcaf0); color: #fff; font-weight: 700; font-size: 0.85rem; box-shadow: 0 8px 30px var(--accent-glow); transition: all 0.3s; animation: float-bob 4s ease-in-out infinite; }
html[dir="rtl"] .float-cta { right: 28px; } html[dir="ltr"] .float-cta { left: 28px; }
.float-cta:hover { transform: translateY(-4px) scale(1.03); animation-play-state: paused; }

@media (max-width: 767px) {
  .whatsapp-float { width: 48px; height: 48px; bottom: 90px; } html[dir="rtl"] .whatsapp-float { left: 20px; } html[dir="ltr"] .whatsapp-float { right: 20px; }
  .float-cta { bottom: 20px; padding: 12px 20px; font-size: 0.8rem; } html[dir="rtl"] .float-cta { right: 20px; left: auto; } html[dir="ltr"] .float-cta { left: 20px; right: auto; }
}

/* ============================================
   GSAP Animation Classes
   ============================================ */
.reveal { opacity: 0; transform: translateY(50px); }
.reveal-left { opacity: 0; transform: translateX(-50px); }
.reveal-right { opacity: 0; transform: translateX(50px); }
.reveal-scale { opacity: 0; transform: scale(0.9); }
.section-divider { width: 100%; height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); }
.text-center { text-align: center; }
.mx-auto { margin-left: auto !important; margin-right: auto !important; }
.mb-16 { margin-bottom: 4rem !important; }
.mb-8 { margin-bottom: 2rem !important; }
.mb-4 { margin-bottom: 1rem !important; }
.w-full { width: 100% !important; }
.justify-center { justify-content: center !important; }
.mt-2 { margin-top: 0.5rem !important; }
.text-gradient { background: linear-gradient(135deg, var(--accent), var(--cyan)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hidden { display: none !important; }

/* Portfolio Browser Fix */
.browser-mockup {
  border-radius: var(--radius-md); background: rgba(15, 15, 20, 0.8); border: 1px solid var(--border); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); overflow: hidden; transition: all var(--transition); transform-style: preserve-3d; transform: translateZ(20px);
}
.browser-mockup:hover { border-color: var(--accent); box-shadow: 0 0 30px var(--accent-subtle); }