/* ════════════════════════════════════════════════════════════
   style.css — Portfolio Frontend Styles
   ════════════════════════════════════════════════════════════ */

/* ── CSS Variables ───────────────────────────────────────── */
:root {
  --bg-primary:     #0d0f14;
  --bg-secondary:   #12151c;
  --bg-card:        #181b24;
  --text-primary:   #e8eaf0;
  --text-secondary: #8890a4;
  --text-tertiary:  #545d72;
  --accent:         #5b8dee;
  --accent-hover:   #7aa3f5;
  --accent-glow:    rgba(91,141,238,.25);
  --border:         rgba(255,255,255,.08);
  --border-hover:   rgba(255,255,255,.15);
  --shadow:         0 8px 32px rgba(0,0,0,.4);
  --shadow-lg:      0 24px 64px rgba(0,0,0,.5);
  --radius:         12px;
  --radius-sm:      8px;
  --nav-height:     72px;
  --transition:     0.3s cubic-bezier(.4,0,.2,1);
  --font-heading:   'Playfair Display', Georgia, serif;
  --font-ui:        'Syne', system-ui, sans-serif;
  --font-mono:      'DM Mono', 'Fira Code', monospace;
}

[data-theme="light"] {
  --bg-primary:     #f8f9fc;
  --bg-secondary:   #ffffff;
  --bg-card:        #ffffff;
  --text-primary:   #1a1d27;
  --text-secondary: #4a5168;
  --text-tertiary:  #8890a4;
  --accent:         #3b6dd4;
  --accent-hover:   #2d5ab8;
  --accent-glow:    rgba(59,109,212,.15);
  --border:         rgba(0,0,0,.08);
  --border-hover:   rgba(0,0,0,.15);
  --shadow:         0 8px 32px rgba(0,0,0,.12);
  --shadow-lg:      0 24px 64px rgba(0,0,0,.2);
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-ui);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--text-tertiary); border-radius: 3px; }

/* ── Noise Texture ───────────────────────────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none; z-index: 1000;
  opacity: .025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}

/* ── Container ───────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Section ─────────────────────────────────────────────── */
.section { padding: 100px 0; }
.section-label {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  margin-bottom: 24px;
}
.section-title em { font-style: italic; color: var(--accent); }
.section-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 540px;
}
.section-header { margin-bottom: 48px; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 100px;
  font-family: var(--font-ui);
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-sm { padding: 8px 20px; font-size: .82rem; }
.btn-full { width: 100%; justify-content: center; }

/* ── Loader ──────────────────────────────────────────────── */
.loader {
  position: fixed; inset: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity .6s ease, visibility .6s ease;
}
.loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-inner { text-align: center; }
.loader-logo {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 24px;
  animation: pulse 1.5s ease infinite;
}
.loader-bar {
  width: 200px;
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 auto;
}
.loader-progress {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  animation: loadProgress 2.5s ease forwards;
}
@keyframes loadProgress { from { width: 0; } to { width: 100%; } }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .5; } }

/* ── Custom Cursor ───────────────────────────────────────── */
#cursor-dot, #cursor-ring {
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: opacity .3s;
}
#cursor-dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  top: 0; left: 0;
}
#cursor-ring {
  width: 36px; height: 36px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  top: 0; left: 0;
  transition: width .2s, height .2s, border-color .2s;
  opacity: .7;
}
body.cursor-hover #cursor-ring {
  width: 56px; height: 56px;
  border-color: var(--accent-hover);
  opacity: .4;
}
@media (pointer: coarse) { #cursor-dot, #cursor-ring { display: none; } }

/* ── Navigation ──────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 900;
  transition: background var(--transition), border-color var(--transition);
}
.navbar.scrolled {
  background: rgba(13,15,20,.9);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
}
[data-theme="light"] .navbar.scrolled {
  background: rgba(248,249,252,.9);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  gap: 8px;
  margin-left: auto;
}
.nav-links a {
  padding: 6px 14px;
  border-radius: 100px;
  font-size: .88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-card);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* Lang Toggle */
.lang-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 4px 6px;
  display: flex;
  align-items: center;
}
.lang-track {
  display: flex;
  align-items: center;
  gap: 6px;
}
.lang-label {
  font-size: .72rem;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--text-tertiary);
  transition: color var(--transition);
  user-select: none;
}
.lang-label.active { color: var(--accent); }
.lang-thumb {
  width: 18px; height: 18px;
  background: var(--accent);
  border-radius: 50%;
  transition: transform var(--transition);
}
html[lang="ar"] .lang-thumb { transform: translateX(0); }

/* Theme Toggle */
.theme-toggle {
  width: 38px; height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.icon-sun, .icon-moon { width: 18px; height: 18px; }
[data-theme="dark"]  .icon-moon { display: none; }
[data-theme="light"] .icon-sun  { display: none; }
[data-theme="dark"]  .icon-sun  { display: block; }
[data-theme="light"] .icon-moon { display: block; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px; height: 38px;
  padding: 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
}
.hamburger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  z-index: 850;
  padding: 16px;
  transform: translateY(-20px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}
.mobile-menu ul { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu a {
  display: block;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.mobile-menu a:hover { background: var(--bg-card); color: var(--text-primary); }

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--nav-height);
  overflow: hidden;
}
.hero-bg-gradient {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 30%, rgba(91,141,238,.12) 0%, transparent 60%),
              radial-gradient(ellipse 40% 40% at 10% 80%, rgba(91,141,238,.06) 0%, transparent 50%);
  pointer-events: none;
}
.hero-noise {
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}
.hero-container {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 60px;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 60px;
  position: relative;
  z-index: 1;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(91,141,238,.1);
  border: 1px solid rgba(91,141,238,.25);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
  animation: fadeInUp .6s ease .2s both;
}
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  line-height: 1.1;
  margin-bottom: 16px;
  animation: fadeInUp .6s ease .35s both;
}
.hero-title em { font-style: italic; color: var(--accent); }
.hero-subtitle {
  font-family: var(--font-mono);
  font-size: .9rem;
  letter-spacing: .08em;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 20px;
  animation: fadeInUp .6s ease .45s both;
}
.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.75;
  margin-bottom: 36px;
  animation: fadeInUp .6s ease .55s both;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
  animation: fadeInUp .6s ease .65s both;
}
.hero-stats {
  display: flex;
  gap: 40px;
  animation: fadeInUp .6s ease .75s both;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: .78rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: .08em;
}

/* Hero Image */
.hero-image-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight .8s ease .4s both;
}
.hero-image {
  position: relative;
  width: 340px; height: 340px;
}
.hero-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
  position: relative; z-index: 1;
}
.hero-image-ring {
  position: absolute;
  inset: -16px;
  border-radius: 50%;
  border: 1px dashed rgba(91,141,238,.35);
  animation: spin 20s linear infinite;
}
.hero-image-dots {
  position: absolute;
  inset: -32px;
  border-radius: 50%;
  border: 1px dashed rgba(91,141,238,.15);
  animation: spin 30s linear infinite reverse;
}
.hero-image-placeholder {
  background: var(--bg-card);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}
.hero-image-placeholder svg {
  width: 60%; height: 60%;
  opacity: .6;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  animation: bounce 2s ease infinite;
  z-index: 1;
}
.hero-scroll-hint svg { width: 16px; height: 16px; }
@keyframes bounce { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(6px); } }

/* ── Marquee ─────────────────────────────────────────────── */
.marquee-strip {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  overflow: hidden;
}
.marquee-track {
  display: flex;
  gap: 0;
  white-space: nowrap;
  animation: marquee 30s linear infinite;
}
.marquee-item {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--text-secondary);
  padding: 0 20px;
}
.marquee-sep {
  color: var(--accent);
  opacity: .5;
  padding: 0 4px;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.marquee-strip:hover .marquee-track { animation-play-state: paused; }

/* ── About ───────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-text {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}
.about-left .btn { margin-top: 8px; }
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 500;
  transition: all var(--transition);
}
.skill-tag:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.skill-icon { font-size: 1rem; }

/* ── Projects ────────────────────────────────────────────── */
.projects-section { background: var(--bg-secondary); }
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}
.filter-btn {
  padding: 8px 20px;
  border-radius: 100px;
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}
.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.project-card.hidden {
  display: none;
}
.project-card-image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.project-card-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.project-card:hover .project-card-image img {
  transform: scale(1.05);
}
.project-card-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
}
.project-card-overlay {
  position: absolute; inset: 0;
  background: rgba(13,15,20,.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  backdrop-filter: blur(4px);
}
.project-card:hover .project-card-overlay { opacity: 1; }
.project-card-body { padding: 20px; }
.project-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.project-year {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-tertiary);
  letter-spacing: .06em;
}
.project-links {
  display: flex;
  gap: 10px;
}
.project-links a {
  color: var(--text-tertiary);
  transition: color var(--transition);
  display: flex;
}
.project-links a:hover { color: var(--accent); }
.project-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.3;
}
.project-title a { transition: color var(--transition); }
.project-title a:hover { color: var(--accent); }
.project-desc {
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 14px;
}
.project-techs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tech-tag {
  padding: 3px 10px;
  background: rgba(91,141,238,.1);
  border: 1px solid rgba(91,141,238,.2);
  color: var(--accent);
  border-radius: 100px;
  font-size: .75rem;
  font-family: var(--font-mono);
  font-weight: 500;
}
.tech-more {
  background: var(--bg-secondary);
  border-color: var(--border);
  color: var(--text-tertiary);
}

/* ── Services ────────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  overflow: hidden;
  transition: all var(--transition);
}
.service-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px var(--accent-glow);
}
.service-icon {
  width: 48px; height: 48px;
  color: var(--accent);
  margin-bottom: 20px;
  display: flex;
}
.service-icon svg { width: 100%; height: 100%; }
.service-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.service-desc {
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.service-number {
  position: absolute;
  bottom: 16px; right: 20px;
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
  user-select: none;
}

/* ── Testimonials ────────────────────────────────────────── */
.testimonials-section { background: var(--bg-secondary); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
}
.testimonial-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}
.testimonial-stars {
  color: #f59e0b;
  font-size: 1rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.testimonial-text {
  font-size: .92rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .9rem;
  flex-shrink: 0;
}
.testimonial-name {
  font-weight: 600;
  font-size: .9rem;
}
.testimonial-role {
  font-size: .78rem;
  color: var(--text-tertiary);
  margin-top: 2px;
}

/* ── Contact ─────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}
.contact-desc {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 32px;
}
.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}
.contact-details li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: .92rem;
}
.contact-details li svg { color: var(--accent); flex-shrink: 0; }
.contact-details a:hover { color: var(--accent); }
.contact-social { display: flex; gap: 12px; }
.social-icon {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.social-icon:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

/* Contact Form */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: .03em;
  text-transform: uppercase;
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: .9rem;
  transition: border-color var(--transition);
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238890a4' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 18px;
  padding-right: 36px;
}
.form-feedback {
  display: none;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  font-weight: 500;
}
.form-feedback.success {
  display: block;
  background: rgba(34,197,94,.1);
  border: 1px solid rgba(34,197,94,.3);
  color: #22c55e;
}
.form-feedback.error {
  display: block;
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.3);
  color: #ef4444;
}
#cfSubmit.loading { opacity: .7; pointer-events: none; }

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-brand { display: flex; flex-direction: column; gap: 6px; }
.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
}
.footer-brand p {
  font-size: .82rem;
  color: var(--text-tertiary);
}
.footer-links {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.footer-links a {
  padding: 6px 12px;
  font-size: .85rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.footer-links a:hover { color: var(--accent); background: var(--bg-card); }
.footer-copy {
  font-size: .8rem;
  color: var(--text-tertiary);
  width: 100%;
  text-align: center;
}

/* ── Back to Top ─────────────────────────────────────────── */
.back-to-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 44px; height: 44px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px var(--accent-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  z-index: 800;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}
.back-to-top svg { width: 20px; height: 20px; }

/* ── Reveal Animations ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Animations ──────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ════════════════════════════════════════════════════════════
   PROJECT DETAIL PAGE
   ════════════════════════════════════════════════════════════ */
.project-hero {
  padding: calc(var(--nav-height) + 40px) 0 40px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: .88rem;
  font-weight: 500;
  margin-bottom: 32px;
  transition: color var(--transition);
}
.back-link:hover { color: var(--accent); }
.project-hero-content { max-width: 800px; }
.project-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}
.project-year-badge {
  font-family: var(--font-mono);
  font-size: .72rem;
  background: rgba(91,141,238,.1);
  border: 1px solid rgba(91,141,238,.25);
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: .06em;
}
.project-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 28px;
}
.project-hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.project-body { background: var(--bg-primary); }
.project-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
}

.project-detail-meta {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 28px;
  margin-bottom: 32px;
}
.detail-meta-item { display: flex; flex-direction: column; gap: 4px; }
.detail-meta-label {
  font-size: .72rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-family: var(--font-mono);
}
.detail-meta-value { font-weight: 600; font-size: .9rem; }
.tech-count {
  font-size: .78rem;
  color: var(--text-tertiary);
  margin-left: 4px;
}

.project-main-image {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 36px;
  border: 1px solid var(--border);
}
.project-main-image img {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
}

.project-description p {
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 16px;
  font-size: .97rem;
}

/* Gallery */
.gallery-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin-bottom: 20px;
  margin-top: 36px;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}
.gallery-item {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: zoom-in;
  border: 1px solid var(--border);
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item-overlay {
  position: absolute; inset: 0;
  background: rgba(13,15,20,.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  color: #fff;
}
.gallery-item:hover .gallery-item-overlay { opacity: 1; }

/* Sidebar */
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}
.sidebar-title {
  font-family: var(--font-heading);
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .06em;
  font-family: var(--font-mono);
}
.sidebar-techs { display: flex; flex-wrap: wrap; gap: 8px; }
.sidebar-tech-tag {
  padding: 5px 12px;
  background: rgba(91,141,238,.1);
  border: 1px solid rgba(91,141,238,.2);
  color: var(--accent);
  border-radius: var(--radius-sm);
  font-size: .78rem;
  font-family: var(--font-mono);
}
.sidebar-links { display: flex; flex-direction: column; gap: 10px; }
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: .88rem;
  font-weight: 500;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.sidebar-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(91,141,238,.05);
}
.sidebar-year {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

/* Related */
.related-section { background: var(--bg-secondary); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
  margin-top: 36px;
}

/* ── Lightbox ────────────────────────────────────────────── */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9990;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
  backdrop-filter: blur(8px);
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox-close {
  position: absolute;
  top: 20px; right: 20px;
  color: rgba(255,255,255,.8);
  background: rgba(255,255,255,.1);
  border-radius: 50%;
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.lightbox-close:hover { background: rgba(255,255,255,.2); color: #fff; }
#lightboxImg {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 32px 80px rgba(0,0,0,.8);
}

/* ════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  /* Show profile image on mobile — below the text */
  .hero-image-wrap {
    display: flex;
    justify-content: center;
    order: 2;
    margin-top: -20px;
  }
  .hero-image {
    width: 200px;
    height: 200px;
  }
  .hero-content {
    order: 1;
  }
  .hero-cta, .hero-stats { justify-content: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .project-layout { grid-template-columns: 1fr; }
  .project-sidebar { order: -1; display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
  .sidebar-card { margin-bottom: 0; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section { padding: 70px 0; }
  .hero-stats { gap: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: center; text-align: center; }
  .project-sidebar { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .project-detail-meta { gap: 20px; }
  .contact-form-wrap { padding: 24px; }
  .back-to-top { bottom: 20px; right: 20px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-cta { flex-direction: column; align-items: center; }
  .btn { padding: 11px 24px; }
}

/* ── Mobile Nav LTR: logo left | actions right ── */
@media (max-width: 768px) {
  .nav-container {
    gap: 0;
    justify-content: space-between;
  }
  /* LTR: logo physically left */
  .nav-logo {
    order: 0;
    flex-shrink: 0;
    margin-right: auto;
  }
  /* LTR: actions group physically right */
  .nav-actions {
    order: 1;
    margin-left: 0;
    gap: 8px;
    flex-direction: row;           /* lang | theme | hamburger */
  }
  /* LTR inside actions: hamburger last = rightmost */
  .nav-actions .lang-toggle  { order: 0; }
  .nav-actions .theme-toggle { order: 1; }
  .nav-actions .hamburger    { order: 2; }
}

/* ── CLS Prevention: explicit aspect ratios ── */
.project-card-image img,
.project-card-image {
  aspect-ratio: 16 / 10;
}
.hero-image img {
  aspect-ratio: 1 / 1;
}
.project-main-image img {
  aspect-ratio: 16 / 9;
}
.gallery-item {
  aspect-ratio: 4 / 3;
}

/* ── Prevent theme flash — ensure transition only after load ── */
html:not([data-theme]) body { visibility: hidden; }
html[data-theme] body       { visibility: visible; }

/* ── Image loading skeleton ──────────────────────────────────── */
img {
  background: var(--bg-card);
}
img[loading="lazy"] {
  opacity: 0;
  transition: opacity .4s ease;
}
img[loading="lazy"].loaded {
  opacity: 1;
}

/* ── Skip to content (accessibility) ───────────────────────── */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  font-weight: 600;
  z-index: 9999;
  transition: top .2s;
  text-decoration: none;
}
.skip-link:focus {
  top: 16px;
}