/* ============================================================
   ZIAD MOHAMED | PRODUCT DESIGNER - Portfolio CSS
   Primary Color: #6C36FE
   Fonts: Syne (Display) + DM Sans (Body)
   ============================================================ */


/* ============================================================
   DARK MODE VARIABLES (uncomment to switch back to dark mode)
   Replace :root variables with these to enable dark mode:
   --bg: #07070f;
   --bg-2: #0d0d1a;
   --bg-3: #12121f;
   --bg-card: #111120;
   --bg-card-hover: #161628;
   --text: #f0f0ff;
   --text-muted: #8888aa;
   --text-subtle: #555577;
   --border: rgba(108, 54, 254, 0.15);
   --border-subtle: rgba(255, 255, 255, 0.06);
   --glass: rgba(13, 13, 26, 0.8);
   --glass-border: rgba(108, 54, 254, 0.2);
   --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
   --shadow-primary: 0 8px 32px rgba(108, 54, 254, 0.25);
   Also change navbar background:
   background: rgba(13, 13, 26, 0.85);
   background scrolled: rgba(10, 10, 20, 0.95);
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&display=swap');

/* ============================================================
   CSS VARIABLES - DARK MODE (Default)
   ============================================================ */
:root {
  --primary: #6C36FE;
  --primary-light: #8B5FFF;
  --primary-dark: #5020E0;
  --primary-glow: rgba(108, 54, 254, 0.3);
  --primary-subtle: rgba(108, 54, 254, 0.08);

  --bg: #ffffff;
  --bg-2: #f5f5ff;
  --bg-3: #efefff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f0ff;

  --text: #0d0d1a;
  --text-muted: #444466;
  --text-subtle: #8888aa;

  --border: rgba(108, 54, 254, 0.2);
  --border-subtle: rgba(108, 54, 254, 0.08);

  --glass: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(108, 54, 254, 0.2);

  --shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-primary: 0 8px 32px rgba(108, 54, 254, 0.2);

  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --radius-full: 999px;

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

  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --nav-height: 70px;
}


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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
  cursor: none;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: none; border: none; background: none; font-family: inherit; }
ul { list-style: none; }

::selection {
  background: var(--primary);
  color: white;
}

/* ============================================================
   CUSTOM CURSOR
   ============================================================ */
.cursor-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s ease, width 0.3s ease, height 0.3s ease, opacity 0.3s ease;
}

.cursor-ring {
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(108, 54, 254, 0.6);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease, width 0.3s ease, height 0.3s ease, opacity 0.3s ease, border-color 0.3s ease;
}

.cursor-dot.expanded {
  width: 12px;
  height: 12px;
}

.cursor-ring.expanded {
  width: 52px;
  height: 52px;
  border-color: var(--primary);
  background: var(--primary-subtle);
}

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  z-index: 10000;
  width: 0%;
  transition: width 0.1s linear;
  box-shadow: 0 0 10px var(--primary-glow);
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  margin: 0 auto;
  z-index: 1000;
  height: 56px;
  width: calc(100% - 80px);
  max-width: 1000px;
  display: flex;
  align-items: center;
  padding: 0 8px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(108, 54, 254, 0.15);
  border-radius: 999px;
  transition: all var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(108, 54, 254, 0.25);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.nav-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--text);
  transition: color var(--transition);
}

.nav-logo span {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  transition: color var(--transition), background var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: var(--primary-subtle);
}

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

.nav-cta {
  background: var(--primary);
  color: white !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-full) !important;
  font-weight: 600 !important;
  font-size: 0.875rem;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition) !important;
  box-shadow: 0 4px 16px var(--primary-glow);
}

.nav-cta:hover {
  background: var(--primary-light) !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 6px 20px var(--primary-glow) !important;
}

/* Language Switcher */


/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 999;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition), opacity var(--transition);
}

.mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-nav a {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}

.mobile-nav a:hover {
  color: var(--primary);
  background: var(--primary-subtle);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-height) + 40px) 40px 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-photo {
  position: absolute;
  right: -5%;
  bottom: 0;
  height: 95%;
  width: 55%;
  object-fit: cover;
  object-position: top center;
  opacity: 0.80;
  mask-image: linear-gradient(to left, rgba(0,0,0,0.8) 30%, transparent 100%),
              linear-gradient(to top, transparent 0%, rgba(0,0,0,1) 20%);
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.8) 30%, transparent 100%),
              linear-gradient(to top, transparent 0%, rgba(0,0,0,1) 20%);
  mask-composite: intersect;
  -webkit-mask-composite: source-in;
  filter: grayscale(20%);
}

/* Nav Logo SVG */
.nav-logo img {
  height: 36px;
  width: auto;
  display: block;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 80% 50%, rgba(108, 54, 254, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(108, 54, 254, 0.04) 0%, transparent 60%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(72, 20, 200, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(72, 20, 200, 0.4) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.64;
  mask-image: radial-gradient(ellipse 60% 80% at 10% 50%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 80% at 10% 50%, black 0%, transparent 70%);
  transition: mask-image 0.4s ease, -webkit-mask-image 0.4s ease;
}


.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--primary-light);
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  max-width: 800px;
}

.hero-title .typing-wrapper {
  color: var(--primary);
  display: inline;
  white-space: nowrap;
}

.hero-title .typing-wrapper .cursor-blink {
  display: inline-block;
  width: 3px;
  height: 0.85em;
  background: var(--primary);
  margin-left: 3px;
  vertical-align: middle;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 40px;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: white;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--primary-glow);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text);
  padding: 13px 32px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border-subtle);
  transition: border-color var(--transition), color var(--transition), background var(--transition), transform var(--transition);
}

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

.hero-social {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: border-color var(--transition), color var(--transition), background var(--transition), transform var(--transition);
}

.social-icon:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-subtle);
  transform: translateY(-3px);
}

/* ============================================================
   SECTION COMMONS
   ============================================================ */
section {
  padding: 100px 40px;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  margin-bottom: 60px;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  margin-top: 12px;
  max-width: 540px;
  line-height: 1.7;
}

/* Fade-in animation for sections */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   ABOUT SECTION
   ============================================================ */
#about {
  background: var(--bg-2);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: start;
}

.about-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 20px;
  font-weight: 300;
}

.about-text p:last-child { margin-bottom: 0; }

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.about-card-section {
  margin-bottom: 28px;
}

.about-card-section:last-child { margin-bottom: 0; }

.about-card-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
  display: block;
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  background: var(--primary-subtle);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.skill-tag:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.languages-text {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 400;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  border-color: var(--border);
  transform: translateY(-4px);
  box-shadow: var(--shadow-primary);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* ============================================================
   RESUME SECTION
   ============================================================ */
#resume {
  background: var(--bg);
}

.resume-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.resume-col-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.resume-col-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.timeline {
  position: relative;
  padding-left: 24px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 28px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 12px var(--primary-glow);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: border-color var(--transition), transform var(--transition);
}

.timeline-card:hover {
  border-color: var(--border);
  transform: translateX(4px);
}

.timeline-tag {
  display: inline-block;
  background: var(--primary-subtle);
  border: 1px solid var(--border);
  color: var(--primary-light);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.timeline-role {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.timeline-org {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============================================================
   PORTFOLIO SECTION
   ============================================================ */
#portfolio {
  background: var(--bg-2);
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}

.filter-tab {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  background: transparent;
  transition: all var(--transition);
}

.filter-tab:hover {
  color: var(--primary);
  border-color: var(--border);
}

.filter-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 16px var(--primary-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

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

.project-card.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.95);
  position: absolute;
}

.project-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.project-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-img-wrap img {
  transform: scale(1.06);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(108, 54, 254, 0.85) 0%, rgba(80, 32, 224, 0.9) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover .project-overlay { opacity: 1; }

.project-overlay-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.2rem;
  transform: scale(0.7);
  transition: transform var(--transition);
}

.project-card:hover .project-overlay-icon { transform: scale(1); }

.project-info {
  padding: 20px 22px;
}

.project-category {
  display: inline-block;
  background: var(--primary-subtle);
  border: 1px solid var(--border);
  color: var(--primary-light);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.project-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.3;
}

.project-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================================
   CERTIFICATES SECTION
   ============================================================ */
#certificates {
  background: var(--bg);
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: none;
}

.cert-card:hover {
  border-color: var(--border);
  transform: translateY(-6px);
  box-shadow: var(--shadow-primary);
}

.cert-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.cert-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.cert-card:hover .cert-img-wrap img { transform: scale(1.04); }

.cert-overlay {
  position: absolute;
  inset: 0;
  background: rgba(7, 7, 15, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.cert-card:hover .cert-overlay { opacity: 1; }

.cert-overlay-icon {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  transform: translateY(10px);
  transition: transform var(--transition);
}

.cert-card:hover .cert-overlay-icon { transform: translateY(0); }

.cert-info {
  padding: 18px 20px;
}

.cert-name {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.lightbox.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 7, 15, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.lightbox-content {
  position: relative;
  z-index: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 680px;
  width: 100%;
  transform: scale(0.9);
  transition: transform var(--transition);
}

.lightbox.open .lightbox-content { transform: scale(1); }

.lightbox-img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  background: var(--bg-2);
}

.lightbox-footer {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.lightbox-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: rgba(0,0,0,0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  transition: background var(--transition);
  z-index: 2;
}

.lightbox-close:hover { background: var(--primary); }

.lightbox-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}

.lightbox-btn:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}

/* ============================================================
   TESTIMONIALS SECTION
   ============================================================ */
#testimonials {
  background: var(--bg-2);
  overflow: hidden;
}

.carousel-wrapper {
  position: relative;
  overflow: hidden;
  width: 100%;
}

.carousel-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.testimonial-card {
  flex: 0 0 calc(33.333% - 16px);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
}

.testimonial-card:hover {
  border-color: var(--border);
  transform: translateY(-4px);
}

.testimonial-quote {
  font-size: 3rem;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 16px;
  font-family: Georgia, serif;
  opacity: 0.6;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
  font-weight: 300;
}

.testimonial-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  color: #fbbf24;
  font-size: 0.9rem;
}

.testimonial-divider {
  height: 1px;
  background: var(--border-subtle);
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-subtle);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-display);
}

.testimonial-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text);
}

.testimonial-role {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all var(--transition);
}

.carousel-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-subtle);
}

.carousel-dots {
  display: flex;
  gap: 8px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: all var(--transition);
}

.carousel-dot.active {
  width: 24px;
  border-radius: 4px;
  background: var(--primary);
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
#contact {
  background: var(--bg);
}

.contact-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.contact-inner .section-header {
  text-align: center;
}

.contact-inner .section-subtitle {
  margin: 0 auto;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-top: 40px;
  text-align: left;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.form-label span {
  color: var(--primary);
}

.form-input,
.form-textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: none;
}

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

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

.form-textarea {
  min-height: 140px;
}

.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 4px 20px var(--primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  position: relative;
  overflow: hidden;
}

.form-submit:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--primary-glow);
}

.form-submit.loading {
  pointer-events: none;
  opacity: 0.8;
}

.form-submit .spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}

.form-submit.loading .spinner { display: block; }
.form-submit.loading .btn-text { display: none; }

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-success {
  display: none;
  text-align: center;
  padding: 20px;
  color: #4ade80;
  font-weight: 600;
  font-size: 0.95rem;
  gap: 8px;
  align-items: center;
  justify-content: center;
}

.form-success.show {
  display: flex;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border-subtle);
  padding: 48px 40px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.footer-logo span { color: var(--primary); }

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-subtle);
}

/* ============================================================
   FLOATING BUTTONS
   ============================================================ */
.floating-buttons {
  position: fixed;
  right: 24px;
  bottom: 32px;
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.hire-me-btn {
  background: var(--primary);
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 4px 20px var(--primary-glow);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.hire-me-btn:hover {
  background: var(--primary-light);
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 8px 28px var(--primary-glow);
}

.back-top-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all var(--transition);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}

.back-top-btn.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.back-top-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-subtle);
  transform: translateY(-2px);
}

/* ============================================================
   RESPONSIVE - TABLET
   ============================================================ */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .resume-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonial-card {
    flex: 0 0 calc(50% - 12px);
  }
}

/* ============================================================
   RESPONSIVE - MOBILE
   ============================================================ */
@media (max-width: 768px) {
  section { padding: 70px 20px; }

  .navbar {
    top: 10px;
    width: calc(100% - 32px);
    padding: 0 4px;
  }

  .nav-links { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }

  .hero { padding: calc(var(--nav-height) + 24px) 20px 60px; }

  .hero-title { font-size: clamp(2.2rem, 10vw, 3.5rem); }

  .hero-bg-photo {
    width: 100%;
    right: 0;
    opacity: 0.80;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .stat-card { padding: 20px 12px; }
  .stat-number { font-size: 1.8rem; }

  .testimonial-card {
    flex: 0 0 85vw;
  }

  .contact-form { padding: 24px 20px; }

  .floating-buttons {
    right: 16px;
    bottom: 24px;
  }

  footer { padding: 40px 20px; }

  .hero-actions { gap: 12px; }
  .btn-primary, .btn-outline { padding: 12px 24px; font-size: 0.9rem; }
}

@media (max-width: 480px) {
  .certs-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .filter-tabs {
    gap: 6px;
  }

  .filter-tab {
    padding: 6px 14px;
    font-size: 0.8rem;
  }
}

/* ============================================================
   RTL SUPPORT - ARABIC
   ============================================================ */


/* Carousel controls - dots only */
.carousel-controls {
  justify-content: center;
}
.carousel-btn {
  display: flex;
}

/* ============================================================
   RESPONSIVE FIXES - ALL DEVICES
   ============================================================ */

/* Base fix */
*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

/* Desktop Large */
@media (min-width: 1400px) {
  .section-inner { max-width: 1300px; }
}

/* Tablet */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr !important;
    display: flex !important;
    flex-direction: column !important;
  }
  .about-card { width: 100% !important; }
  .resume-grid { grid-template-columns: 1fr; gap: 32px; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Mobile */
@media (max-width: 768px) {
  :root { --nav-height: 60px; }

  section { padding: 60px 16px; }

  .navbar {
    top: 10px;
    width: calc(100% - 24px);
    padding: 0 4px;
  }

  .nav-links, .nav-cta { display: none !important; }
  .hamburger { display: flex !important; }

  .hero {
    padding: calc(var(--nav-height) + 80px) 16px 60px;
    min-height: 100svh;
  }

  .hero-title {
    font-size: clamp(2rem, 9vw, 3rem) !important;
  }

  .hero-sub { font-size: 0.95rem; }

  .hero-bg-photo {
    width: 100%;
    right: 0;
    left: 0;
    opacity: 0.80;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .btn-primary, .btn-outline {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
  }

  .about-grid {
    grid-template-columns: 1fr !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 32px;
  }

  .about-card { width: 100% !important; }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .stat-card { padding: 16px 8px; }
  .stat-number { font-size: 1.6rem; }
  .stat-label { font-size: 0.72rem; }

  .resume-grid { grid-template-columns: 1fr; gap: 24px; }

  .filter-tabs { gap: 6px; }
  .filter-tab { padding: 6px 12px; font-size: 0.78rem; }

  .projects-grid { grid-template-columns: 1fr; gap: 16px; }
  .certs-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }

  .section-title { font-size: clamp(1.6rem, 6vw, 2.2rem) !important; }

  .contact-form { padding: 20px 16px; }

  .floating-buttons { right: 12px; bottom: 20px; }

  .hire-me-btn { padding: 10px 16px; font-size: 0.8rem; }

  footer { padding: 32px 16px; }

  .lightbox-content { margin: 16px; }
  .lightbox-footer { flex-direction: column; gap: 12px; text-align: center; }
}

/* Small Mobile */
@media (max-width: 480px) {
  .certs-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-social { flex-wrap: wrap; gap: 8px; }
  .social-icon { width: 40px; height: 40px; font-size: 0.9rem; }

  .navbar {
    width: calc(100% - 16px);
  }
}