/* ═══════════════════════════════════════════════════════════════
   PORTFOLIO CSS — Professional Dark/Light Theme
   ═══════════════════════════════════════════════════════════════ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400&family=Syne:wght@400;600;700;800&family=Cairo:wght@300;400;600;700;900&display=swap');

/* ══════════════════════════════════════════════════════════════
   1. CSS VARIABLES — DARK THEME (default)
══════════════════════════════════════════════════════════════ */
:root {
  --bg:          #080b12;
  --bg-2:        #0d1117;
  --bg-3:        #161b27;
  --surface:     #1a2035;
  --surface-2:   #1f2840;
  --border:      rgba(255,255,255,0.08);
  --border-2:    rgba(255,255,255,0.14);

  --text-primary:   #f0f4ff;
  --text-secondary: #8b9cc7;
  --text-muted:     #4a5572;

  --accent:      #4f8eff;
  --accent-2:    #7c3aed;
  --accent-glow: rgba(79,142,255,0.25);
  --accent-3:    #06d6a0;

  --code-bg:     #0d1117;
  --code-border: rgba(79,142,255,0.2);

  --nav-bg:      rgba(8,11,18,0.85);
  --card-bg:     #111827;
  --card-hover:  #1a2035;

  --shadow-sm:   0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:   0 8px 32px rgba(0,0,0,0.5);
  --shadow-lg:   0 20px 60px rgba(0,0,0,0.6);
  --glow:        0 0 40px rgba(79,142,255,0.15);

  --orb-1: rgba(79,142,255,0.15);
  --orb-2: rgba(124,58,237,0.12);
  --orb-3: rgba(6,214,160,0.08);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-xl: 40px;

  --font-display: 'Syne', sans-serif;
  --font-mono:    'Space Mono', monospace;
  --font-arabic:  'Cairo', sans-serif;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ══════════════════════════════════════════════════════════════
   LIGHT THEME
══════════════════════════════════════════════════════════════ */
[data-theme="light"] {
  --bg:          #f5f7ff;
  --bg-2:        #eef1fb;
  --bg-3:        #e4e9f7;
  --surface:     #ffffff;
  --surface-2:   #f0f4ff;
  --border:      rgba(0,0,0,0.08);
  --border-2:    rgba(0,0,0,0.14);

  --text-primary:   #0d1117;
  --text-secondary: #3d4a6b;
  --text-muted:     #8b9cc7;

  --accent:      #2563eb;
  --accent-2:    #6d28d9;
  --accent-glow: rgba(37,99,235,0.18);
  --accent-3:    #059669;

  --code-bg:     #f0f4ff;
  --code-border: rgba(37,99,235,0.2);

  --nav-bg:      rgba(245,247,255,0.9);
  --card-bg:     #ffffff;
  --card-hover:  #f0f4ff;

  --shadow-sm:   0 2px 8px rgba(0,0,0,0.06);
  --shadow-md:   0 8px 32px rgba(0,0,0,0.1);
  --shadow-lg:   0 20px 60px rgba(0,0,0,0.12);
  --glow:        0 0 40px rgba(37,99,235,0.08);

  --orb-1: rgba(37,99,235,0.08);
  --orb-2: rgba(109,40,217,0.06);
  --orb-3: rgba(5,150,105,0.05);
}

/* ══════════════════════════════════════════════════════════════
   2. RESET & BASE
══════════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

body {
  font-family: var(--font-arabic);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  direction: rtl;
  transition: background var(--transition), color var(--transition);
}

::selection { background: var(--accent); color: #fff; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* ══════════════════════════════════════════════════════════════
   3. CUSTOM CURSOR
══════════════════════════════════════════════════════════════ */
.cursor {
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%,-50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
}

.cursor-follower {
  width: 36px; height: 36px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%,-50%);
  transition: transform 0.12s ease, width 0.3s, height 0.3s, opacity 0.3s;
  opacity: 0.5;
}

body:hover .cursor { opacity: 1; }
a:hover ~ .cursor, button:hover ~ .cursor { width: 16px; height: 16px; }

/* ══════════════════════════════════════════════════════════════
   4. LOADER
══════════════════════════════════════════════════════════════ */
.loader {
  position: fixed; inset: 0;
  background: var(--bg);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.hidden { opacity: 0; visibility: hidden; }

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  width: 280px;
}

.loader-bar {
  width: 100%;
  height: 2px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}

.loader-bar::after {
  content: '';
  position: absolute;
  left: 0; top: 0; height: 100%;
  width: var(--progress, 0%);
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 99px;
  transition: width 0.05s linear;
  box-shadow: 0 0 12px var(--accent);
}

.loader-text {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
}

/* ══════════════════════════════════════════════════════════════
   5. NAVIGATION
══════════════════════════════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background var(--transition), border-color var(--transition);
}

.nav.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 4px;
}

.logo-bracket { color: var(--accent); }
.logo-name { color: var(--text-primary); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
}

.nav-link {
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: calc(100% - 24px);
  height: 2px;
  background: var(--accent);
  border-radius: 99px;
  transition: transform var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}
.nav-link:hover::after, .nav-link.active::after { transform: translateX(-50%) scaleX(1); }
.nav-link.active { color: var(--accent); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme Toggle */
.theme-toggle {
  width: 48px; height: 26px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: 99px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  transition: background var(--transition);
}

.theme-icon {
  font-size: 0.85rem;
  position: absolute;
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1), opacity 0.4s;
  line-height: 1;
}

.theme-icon.moon { opacity: 1; transform: translateY(0); }
.theme-icon.sun  { opacity: 0; transform: translateY(20px); }

[data-theme="light"] .theme-icon.moon { opacity: 0; transform: translateY(-20px); }
[data-theme="light"] .theme-icon.sun  { opacity: 1; transform: translateY(0); }

/* Menu Toggle (mobile) */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  width: 22px; height: 2px;
  background: var(--text-primary);
  border-radius: 99px;
  transition: all 0.3s ease;
  display: block;
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-100%);
  transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
}

.mobile-menu.open { transform: translateY(0); }

.mobile-menu ul {
  list-style: none;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-link {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-secondary);
  display: block;
  padding: 12px 32px;
  transition: color var(--transition);
}

.mobile-link:hover { color: var(--accent); }

/* ══════════════════════════════════════════════════════════════
   6. UTILITY
══════════════════════════════════════════════════════════════ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 5%; }

.section { padding: 120px 0; }

.section-header {
  text-align: center;
  margin-bottom: 72px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(79,142,255,0.1);
  padding: 6px 16px;
  border-radius: 99px;
  border: 1px solid rgba(79,142,255,0.2);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.15;
}

.section-line {
  width: 60px; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 99px;
  margin: 0 auto;
}

/* Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4,0,0.2,1),
              transform 0.8s cubic-bezier(0.4,0,0.2,1);
}

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

/* ══════════════════════════════════════════════════════════════
   7. BUTTONS
══════════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-arabic);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn:hover::before { opacity: 1; }

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-2);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-full { width: 100%; justify-content: center; }

/* ══════════════════════════════════════════════════════════════
   8. HERO
══════════════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 5% 80px;
  gap: 80px;
}

/* Background */
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.5;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

.noise-overlay {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  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='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
  width: 500px; height: 500px;
  background: var(--orb-1);
  top: -100px; left: -100px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px; height: 400px;
  background: var(--orb-2);
  bottom: -80px; right: 10%;
  animation-delay: 3s;
}

.orb-3 {
  width: 300px; height: 300px;
  background: var(--orb-3);
  top: 40%; left: 40%;
  animation-delay: 5s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(20px, -30px) scale(1.05); }
  66%       { transform: translate(-15px, 20px) scale(0.95); }
}

/* Hero Layout */
.hero-content {
  flex: 1;
  max-width: 640px;
  position: relative;
  z-index: 2;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(6,214,160,0.08);
  border: 1px solid rgba(6,214,160,0.2);
  color: var(--accent-3);
  padding: 8px 20px;
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 28px;
}

.tag-dot {
  width: 8px; height: 8px;
  background: var(--accent-3);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-3);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.title-line {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-primary);
}

.title-line.accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--accent-3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 520px;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
}

.stat { text-align: center; }

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px; height: 40px;
  background: var(--border-2);
}

/* Hero Visual */
.hero-visual {
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

.profile-frame {
  position: relative;
  width: 340px; height: 400px;
}

.frame-glow {
  position: absolute;
  inset: -20px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 36px;
  opacity: 0.08;
  filter: blur(30px);
  animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.08; }
  50%       { opacity: 0.14; }
}

.frame-border {
  position: absolute;
  inset: 0;
  border-radius: 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2), transparent, var(--accent-3));
  padding: 2px;
}

.frame-border::after {
  content: '';
  position: absolute;
  inset: 2px;
  background: var(--bg-2);
  border-radius: 26px;
}

.profile-img {
  position: absolute;
  inset: 2px;
  width: calc(100% - 4px);
  height: calc(100% - 4px);
  object-fit: cover;
  border-radius: 26px;
  z-index: 1;
}

.frame-corner {
  position: absolute;
  width: 20px; height: 20px;
  z-index: 2;
}

.frame-corner::before, .frame-corner::after {
  content: '';
  position: absolute;
  background: var(--accent);
  border-radius: 2px;
}

.frame-corner::before { width: 100%; height: 2px; }
.frame-corner::after  { width: 2px; height: 100%; }

.tl { top: -2px; right: -2px; }
.tr { top: -2px; left: -2px; }
.tr::before { right: 0; }
.tr::after  { left: 0; }
.bl { bottom: -2px; right: -2px; }
.bl::before { bottom: 0; }
.bl::after  { bottom: 0; right: 0; }
.br { bottom: -2px; left: -2px; }
.br::before { bottom: 0; right: 0; }
.br::after  { bottom: 0; left: 0; }

/* Floating Cards */
.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
  animation: floatCard 4s ease-in-out infinite;
  z-index: 3;
  white-space: nowrap;
}

.card-icon { font-size: 1.1rem; }

.card-1 { top: -20px; left: -60px; animation-delay: 0s; }
.card-2 { bottom: 60px; left: -70px; animation-delay: 1.5s; }
.card-3 { top: 50%; right: -70px; transform: translateY(-50%); animation-delay: 3s; }

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

.card-3 { animation-name: floatCard3; }
@keyframes floatCard3 {
  0%, 100% { transform: translateY(-50%); }
  50%       { transform: translateY(calc(-50% - 10px)); }
}

/* Scroll Hint */
.scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  z-index: 2;
  animation: fadeInUp 1s 2s both;
}

.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollAnim 2s ease-in-out infinite;
}

@keyframes scrollAnim {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50%       { transform: scaleY(0.5); opacity: 0.4; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translate(-50%, 20px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ══════════════════════════════════════════════════════════════
   9. ABOUT
══════════════════════════════════════════════════════════════ */
.about { background: var(--bg-2); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.about-lead {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 20px;
}

.about-text p:not(.about-lead) {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 32px;
  line-height: 1.9;
}

.about-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.info-icon { font-size: 1.1rem; }

/* Code Block */
.code-block {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--glow);
}

.code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.dot.red    { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green  { background: #28c840; }

.code-filename {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-right: auto;
}

.code-body {
  padding: 28px;
  overflow-x: auto;
}

.code-body code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.9;
  white-space: pre;
  display: block;
}

.c-keyword { color: #c678dd; }
.c-class   { color: #e5c07b; }
.c-fn      { color: #61afef; }
.c-str     { color: #98c379; }
.c-comment { color: #5c6370; }

/* ══════════════════════════════════════════════════════════════
   10. SKILLS
══════════════════════════════════════════════════════════════ */
.skills { background: var(--bg); }

.skills-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 10px 28px;
  border-radius: 99px;
  border: 1px solid var(--border-2);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-arabic);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}

.tab-btn.active, .tab-btn:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.skills-panels { position: relative; }

.skills-panel {
  display: none;
  animation: fadeIn 0.4s ease;
}
.skills-panel.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.skill-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: opacity var(--transition);
}

.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.skill-card:hover::before { opacity: 0.04; }

.skill-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  position: relative;
}

.skill-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.skill-icon { font-size: 1.4rem; }

.skill-pct {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 700;
}

.skill-bar {
  height: 4px;
  background: var(--bg-3);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}

.skill-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 99px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
  position: relative;
}

.skill-bar-fill::after {
  content: '';
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  width: 8px; height: 8px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
}

/* Ticker */
.ticker-wrap {
  margin-top: 72px;
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.ticker-track {
  display: flex;
  gap: 40px;
  white-space: nowrap;
  animation: tickerMove 20s linear infinite;
  width: max-content;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.ticker-item span { font-size: 1.1rem; }

@keyframes tickerMove {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ══════════════════════════════════════════════════════════════
   11. PROJECTS
══════════════════════════════════════════════════════════════ */
.projects { background: var(--bg-2); }

.projects-filter {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 22px;
  border-radius: 99px;
  border: 1px solid var(--border-2);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-arabic);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn.active, .filter-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--glow);
}

.project-thumb {
  height: 200px;
  background: linear-gradient(135deg, var(--bg-3), var(--surface));
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-thumb-icon {
  font-size: 4rem;
  opacity: 0.3;
  transition: transform var(--transition), opacity var(--transition);
}

.project-card:hover .project-thumb-icon {
  transform: scale(1.1);
  opacity: 0.5;
}

.project-links {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  gap: 8px;
  opacity: 0;
  transform: translateY(-8px);
  transition: all var(--transition);
}

.project-card:hover .project-links {
  opacity: 1;
  transform: translateY(0);
}

.project-link-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg);
  color: var(--text-primary);
  border: 1px solid var(--border-2);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}

.project-link-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.project-body { padding: 24px; flex: 1; }

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.project-tag {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 99px;
  background: rgba(79,142,255,0.1);
  color: var(--accent);
  border: 1px solid rgba(79,142,255,0.2);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.project-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ══════════════════════════════════════════════════════════════
   12. CONTACT
══════════════════════════════════════════════════════════════ */
.contact { background: var(--bg); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 72px;
  align-items: start;
}

.contact-info h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.8;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.contact-link:hover {
  border-color: var(--accent);
  transform: translateX(-6px);
  box-shadow: var(--shadow-sm);
}

.link-icon {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-3);
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.link-icon svg {
  width: 20px; height: 20px;
  color: var(--text-secondary);
}

.link-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.link-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.link-val {
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 600;
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: var(--text-primary);
  font-family: var(--font-arabic);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
  resize: none;
  direction: rtl;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-success {
  text-align: center;
  padding: 14px;
  background: rgba(6,214,160,0.08);
  border: 1px solid rgba(6,214,160,0.2);
  border-radius: var(--radius-sm);
  color: var(--accent-3);
  font-size: 0.9rem;
  font-weight: 600;
}

/* ══════════════════════════════════════════════════════════════
   13. FOOTER
══════════════════════════════════════════════════════════════ */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}

.footer p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-copy { font-family: var(--font-mono); font-size: 0.78rem !important; }

/* ══════════════════════════════════════════════════════════════
   14. UTILITY CLASSES
══════════════════════════════════════════════════════════════ */
.hidden { display: none !important; }

/* ══════════════════════════════════════════════════════════════
   15. RESPONSIVE
══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero { flex-direction: column; text-align: center; padding: 120px 5% 80px; }
  .hero-content { max-width: 100%; }
  .hero-cta, .hero-stats { justify-content: center; }
  .hero-visual { order: -1; }
  .profile-frame { width: 260px; height: 310px; }
  .card-1 { left: -40px; top: -10px; }
  .card-2 { left: -50px; bottom: 40px; }
  .card-3 { right: -50px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .menu-toggle { display: flex; }
  .hero-stats { gap: 16px; }
  .profile-frame { width: 220px; height: 260px; }
  .projects-grid { grid-template-columns: 1fr; }
  .floating-card { display: none; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 80px 0; }
}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-divider { width: 40px; height: 1px; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* ══════════════════════════════════════════════════════════════
   16. SCROLLBAR
══════════════════════════════════════════════════════════════ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--accent), var(--accent-2));
  border-radius: 99px;
}

.project-link-btn.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}