/* ============================================================
   DESIGN TOKENS
============================================================ */
:root {
  --bg: #05070b;
  --bg-2: #0a0e16;
  --surface: #0f141f;
  --surface-2: #141b2a;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f2f6ff;
  --text-muted: #9aa7bd;
  --accent: #22c55e;
  --accent-2: #34d399;
  --accent-dim: rgba(34, 197, 94, 0.14);
  --grad: linear-gradient(135deg, #22c55e 0%, #34d399 50%, #06b6d4 100%);
  --font-head: 'Sora', 'Cairo', sans-serif;
  --font-body: 'Sora', 'Cairo', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 18px;
  --radius-lg: 26px;
  --nav-h: 72px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html[lang="ar"] {
  --font-head: 'Cairo', 'Sora', sans-serif;
  --font-body: 'Cairo', 'Sora', sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

html[dir="rtl"] body { letter-spacing: 0; }

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

::selection { background: var(--accent); color: #04120a; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #232c3f; border-radius: 10px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

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

section { position: relative; }

/* ============================================================
   BACKGROUND FX
============================================================ */
.bg-fx {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, black 30%, transparent 75%);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  animation: orbFloat 18s var(--ease) infinite alternate;
}
.orb-1 { width: 480px; height: 480px; background: radial-gradient(circle, rgba(34,197,94,0.5), transparent 70%); top: -120px; left: -100px; }
.orb-2 { width: 420px; height: 420px; background: radial-gradient(circle, rgba(6,182,212,0.4), transparent 70%); top: 30%; right: -140px; animation-delay: -6s; }
.orb-3 { width: 380px; height: 380px; background: radial-gradient(circle, rgba(52,211,153,0.3), transparent 70%); bottom: -100px; left: 30%; animation-delay: -11s; }

@keyframes orbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(40px, -30px) scale(1.08); }
  100% { transform: translate(-30px, 30px) scale(0.95); }
}

#particleCanvas { position: absolute; inset: 0; width: 100%; height: 100%; }

/* ============================================================
   PRELOADER
============================================================ */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}
.preloader.hidden { opacity: 0; visibility: hidden; }
.preloader-inner { text-align: center; }
.preloader-logo {
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 600;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: preLogo 1.2s var(--ease-spring) both;
}
.preloader-bar {
  width: 140px;
  height: 3px;
  background: var(--surface-2);
  border-radius: 4px;
  margin: 22px auto 0;
  overflow: hidden;
}
.preloader-bar span {
  display: block;
  height: 100%;
  width: 40%;
  background: var(--grad);
  border-radius: 4px;
  animation: preBar 1s var(--ease) infinite;
}
@keyframes preLogo { from { opacity: 0; transform: scale(0.6); } to { opacity: 1; transform: scale(1); } }
@keyframes preBar { from { transform: translateX(-120%); } to { transform: translateX(300%); } }
html[dir="rtl"] .preloader-bar span { animation-direction: reverse; }

/* ============================================================
   CUSTOM CURSOR
============================================================ */
.cursor-dot, .cursor-ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 999;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.cursor-dot {
  width: 8px; height: 8px;
  background: var(--accent);
}
.cursor-ring {
  width: 38px; height: 38px;
  border: 1.5px solid rgba(34, 197, 94, 0.55);
  transition: width 0.3s var(--ease), height 0.3s var(--ease), border-color 0.3s, opacity 0.3s;
}
.cursor-ring.grow { width: 62px; height: 62px; border-color: rgba(34, 197, 94, 0.9); }
.cursor-dot, .cursor-ring { opacity: 0; }

@media (hover: none), (pointer: coarse) {
  .cursor-dot, .cursor-ring { display: none; }
}

/* ============================================================
   SCROLL PROGRESS
============================================================ */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--grad);
  z-index: 998;
  transition: width 0.1s linear;
}

/* ============================================================
   HEADER / NAV
============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  transition: background 0.4s var(--ease), border-color 0.4s, box-shadow 0.4s, backdrop-filter 0.4s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(5, 7, 11, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}
.nav {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -1px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
  transition: color 0.3s;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--grad);
  border-radius: 2px;
  transition: right 0.35s var(--ease);
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a:hover::after, .nav-links a.active::after { right: 0; }
html[dir="rtl"] .nav-links a::after { left: 100%; right: 0; transition: left 0.35s var(--ease); }
html[dir="rtl"] .nav-links a:hover::after, html[dir="rtl"] .nav-links a.active::after { left: 0; }

.nav-actions { display: flex; align-items: center; gap: 16px; }

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface);
  transition: all 0.3s var(--ease);
}
.lang-toggle:hover { border-color: var(--accent); color: var(--text); transform: translateY(-1px); }
.lang-toggle .lang-sep { opacity: 0.4; }
.lang-toggle .lang-current { color: var(--accent); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 34px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s var(--ease), background 0.3s, border-color 0.3s, color 0.3s;
  will-change: transform;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--grad);
  color: #04120a;
  box-shadow: 0 8px 30px rgba(34, 197, 94, 0.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 44px rgba(34, 197, 94, 0.45); }
.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -120%;
  width: 60%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.5), transparent);
  transform: skewX(-20deg);
  animation: shine 3.2s var(--ease) infinite;
}
@keyframes shine { 0%, 60% { left: -120%; } 100% { left: 160%; } }
html[dir="rtl"] .btn-primary::before { animation-name: shineRtl; }
@keyframes shineRtl { 0%, 60% { right: -120%; left: auto; } 100% { right: 160%; left: auto; } }

.btn-ghost {
  border: 1.5px solid var(--border-strong);
  color: var(--text);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }
.btn-sm { padding: 11px 26px; font-size: 14px; }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 10px; z-index: 910; }
.hamburger span { width: 26px; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.4s var(--ease), opacity 0.3s; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 905;
  background: rgba(5, 7, 11, 0.96);
  backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 34px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s var(--ease), visibility 0.45s;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu ul { display: flex; flex-direction: column; gap: 8px; text-align: center; }
.mobile-menu ul a {
  font-family: var(--font-head);
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  padding: 8px 24px;
  display: block;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), color 0.3s;
}
.mobile-menu.open ul a { opacity: 1; transform: translateY(0); }
.mobile-menu.open ul a:hover { color: var(--accent); }
.mobile-menu.open ul a:nth-child(2) { transition-delay: 0.06s; }
.mobile-menu.open ul a:nth-child(3) { transition-delay: 0.12s; }
.mobile-menu.open ul a:nth-child(4) { transition-delay: 0.18s; }
.mobile-menu.open ul a:nth-child(5) { transition-delay: 0.24s; }
.mobile-menu.open ul a:nth-child(6) { transition-delay: 0.3s; }
.mobile-foot { margin-top: 10px; }

/* ============================================================
   HERO
============================================================ */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 40px) 0 60px;
  position: relative;
}
.hero-inner { text-align: center; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--surface);
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 34px;
  backdrop-filter: blur(8px);
}
.pulse-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.55); }
  70% { box-shadow: 0 0 0 12px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.hero-title { margin-bottom: 26px; }
.hero-line { display: block; }
.hero-greet {
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: 400;
  color: var(--text-muted);
  display: inline-block;
}
.hero-name {
  display: block;
  font-family: var(--font-head);
  font-size: clamp(52px, 9vw, 110px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: nameFloat 6s var(--ease) infinite;
}
@keyframes nameFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.hero-role-wrap {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.6vw, 26px);
  color: var(--accent-2);
  margin-top: 14px;
}
.hero-role-prefix, .hero-role-suffix { color: var(--text-muted); }
.hero-typed { min-width: 220px; text-align: left; }
html[dir="rtl"] .hero-typed { text-align: right; }
.hero-typed .type-cursor { color: var(--accent); animation: blink 0.9s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  max-width: 640px;
  margin: 26px auto 0;
  color: var(--text-muted);
  font-size: clamp(15px, 2vw, 18px);
}
.hero-cta { display: flex; justify-content: center; gap: 18px; margin-top: 42px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 5vw, 56px);
  margin-top: 64px;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-num {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { font-size: 13px; color: var(--text-muted); }
.stat-divider { width: 1px; height: 44px; background: var(--border); }

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.scroll-hint::after {
  content: '';
  width: 2px; height: 36px;
  background: var(--grad);
  border-radius: 2px;
  animation: scrollLine 1.8s var(--ease) infinite;
}
@keyframes scrollLine { 0% { transform: scaleY(0); transform-origin: top; } 45% { transform: scaleY(1); transform-origin: top; } 55% { transform: scaleY(1); transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ============================================================
   SECTION BASE
============================================================ */
.section { padding: 110px 0; position: relative; }
.section-head { margin-bottom: 64px; max-width: 640px; }
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 16px;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--accent-dim);
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(30px, 5vw, 50px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.section-sub { margin-top: 18px; color: var(--text-muted); font-size: 16px; }

/* ============================================================
   REVEAL ANIMATION
============================================================ */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); transition-delay: calc(var(--d, 0) * 0.1s); will-change: opacity, transform; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   ABOUT
============================================================ */
.about-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 64px; align-items: center; }

.glow-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  position: relative;
  transition: transform 0.5s var(--ease-spring), box-shadow 0.5s;
}
.glow-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.5s;
  z-index: -1;
}
.glow-card:hover { transform: translateY(-8px) rotateX(4deg) rotateY(-4deg); box-shadow: 0 30px 80px rgba(34, 197, 94, 0.2); }
.glow-card:hover::before { opacity: 0.5; }

.code-window { border-radius: var(--radius-lg); overflow: hidden; background: #070b12; }
.code-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 14px 18px;
  background: #0d1420;
  border-bottom: 1px solid var(--border);
}
.code-bar span { width: 12px; height: 12px; border-radius: 50%; }
.code-bar span:nth-child(1) { background: #ff5f57; }
.code-bar span:nth-child(2) { background: #febc2e; }
.code-bar span:nth-child(3) { background: #28c840; }
.code-bar em { margin-inline-start: auto; font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); font-style: normal; }
.code-body { padding: 24px; font-family: var(--font-mono); font-size: 14px; line-height: 1.9; color: #a8b3cf; overflow-x: auto; }
.c-kw { color: #c792ea; }
.c-str { color: #89ddff; }
.c-bool { color: #f78c6c; }

.about-text .lead { font-size: 20px; font-weight: 600; margin-bottom: 18px; color: var(--text); }
.about-text p { color: var(--text-muted); margin-bottom: 16px; }
.about-text em { color: var(--accent-2); font-style: normal; font-weight: 600; }
.about-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 30px; }
.about-tags span {
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 100px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all 0.3s var(--ease);
}
.about-tags span:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ============================================================
   SKILLS
============================================================ */
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s var(--ease-spring), border-color 0.4s, box-shadow 0.4s;
}
.skill-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 50%), var(--accent-dim), transparent 45%);
  opacity: 0;
  transition: opacity 0.4s;
}
.skill-card:hover { transform: translateY(-8px); border-color: var(--accent); box-shadow: 0 24px 60px rgba(0,0,0,0.4); }
.skill-card:hover::after { opacity: 1; }
.skill-icon {
  width: 60px; height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  color: var(--accent);
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}
.skill-icon svg { width: 28px; height: 28px; }
.skill-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; position: relative; z-index: 1; }
.skill-card p { color: var(--text-muted); font-size: 14.5px; margin-bottom: 22px; position: relative; z-index: 1; }
.skill-bar {
  height: 8px;
  border-radius: 10px;
  background: var(--surface-2);
  overflow: hidden;
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 12px;
}
.skill-bar .fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--grad);
  border-radius: 10px;
  transition: width 1.4s var(--ease) 0.2s;
}
.skill-bar em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  white-space: nowrap;
}
.skill-card.revealed .fill { width: var(--w); }

/* ============================================================
   PROJECTS
============================================================ */
.filter-bar { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 44px; }
.filter-btn {
  padding: 10px 24px;
  border-radius: 100px;
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  transition: all 0.35s var(--ease);
}
.filter-btn:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.filter-btn.active { background: var(--grad); color: #04120a; border-color: transparent; font-weight: 600; box-shadow: 0 6px 20px rgba(34,197,94,0.35); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.45s var(--ease-spring), box-shadow 0.45s, border-color 0.45s, opacity 0.4s, filter 0.4s;
  transform: translateZ(0);
}
.project-card:hover { transform: translateY(-10px) scale(1.01); border-color: var(--accent); box-shadow: 0 30px 70px rgba(0,0,0,0.5); }
.project-card.filtering { opacity: 0; transform: scale(0.92); filter: blur(6px); }
.project-card.show { opacity: 1; transform: scale(1); filter: blur(0); }

.project-thumb {
  height: 210px;
  position: relative;
  overflow: hidden;
}
.project-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  transition: transform 0.7s var(--ease);
}
.project-card:hover .project-thumb::before { transform: scale(1.12); }
.thumb-1::before { background: linear-gradient(135deg, #0f3d2e, #22c55e33, #0f141f), radial-gradient(circle at 80% 20%, #34d39955, transparent 40%); }
.thumb-2::before { background: linear-gradient(135deg, #0f2440, #06b6d433, #0f141f), radial-gradient(circle at 20% 80%, #06b6d455, transparent 40%); }
.thumb-3::before { background: linear-gradient(135deg, #1a0f40, #a855f733, #0f141f), radial-gradient(circle at 70% 70%, #c084fc55, transparent 40%); }
.thumb-4::before { background: linear-gradient(135deg, #2b1a0f, #f59e0b33, #0f141f), radial-gradient(circle at 30% 30%, #fbbf2455, transparent 40%); }
.thumb-5::before { background: linear-gradient(135deg, #0f2420, #10b98133, #0f141f), radial-gradient(circle at 75% 25%, #34d39955, transparent 40%); }
.thumb-6::before { background: linear-gradient(135deg, #1f0f24, #ec489933, #0f141f), radial-gradient(circle at 25% 75%, #f472b655, transparent 40%); }
.project-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, black, transparent 80%);
}
.thumb-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5, 7, 11, 0.35);
  backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  z-index: 2;
}
.project-card:hover .thumb-overlay { opacity: 1; }
.thumb-link {
  padding: 12px 24px;
  border-radius: 100px;
  background: var(--grad);
  color: #04120a;
  font-weight: 600;
  font-size: 14px;
  transform: translateY(16px) scale(0.9);
  transition: transform 0.4s var(--ease-spring);
}
.project-card:hover .thumb-link { transform: translateY(0) scale(1); }

.project-body { padding: 26px; }
.project-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); }
.project-meta .tag {
  background: var(--accent-dim);
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 100px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 12px;
}
.project-body h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.project-body p { color: var(--text-muted); font-size: 14px; margin-bottom: 18px; }
.project-tech { display: flex; flex-wrap: wrap; gap: 8px; }
.project-tech span {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

/* ============================================================
   EXPERIENCE / TIMELINE
============================================================ */
.timeline { position: relative; max-width: 760px; margin: 0 auto; padding-left: 34px; }
html[dir="rtl"] .timeline { padding-left: 0; padding-right: 34px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 8px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2), transparent);
  border-radius: 2px;
}
html[dir="rtl"] .timeline::before { left: auto; right: 8px; }
.timeline-item { position: relative; padding-bottom: 40px; }
.timeline-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute;
  left: -34px;
  top: 6px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 5px var(--accent-dim);
}
html[dir="rtl"] .tl-dot { left: auto; right: -34px; }
.tl-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 30px;
  transition: transform 0.4s var(--ease-spring), border-color 0.4s, box-shadow 0.4s;
}
.tl-card:hover { transform: translateX(8px); border-color: var(--accent); box-shadow: var(--shadow); }
html[dir="rtl"] .tl-card:hover { transform: translateX(-8px); }
.tl-date {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.tl-card h3 { font-size: 20px; font-weight: 700; margin: 8px 0 4px; }
.tl-card h4 { font-size: 15px; font-weight: 500; color: var(--text-muted); margin-bottom: 10px; }
.tl-card p { font-size: 14px; color: var(--text-muted); }

/* ============================================================
   CONTACT
============================================================ */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 22px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.35s var(--ease);
}
.contact-item:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow); }
.ci-icon {
  width: 52px; height: 52px;
  flex-shrink: 0;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  color: var(--accent);
}
.ci-icon svg { width: 24px; height: 24px; }
.contact-item h4 { font-size: 13px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 2px; }
.contact-item a, .contact-item span { font-size: 16px; font-weight: 600; color: var(--text); }
.contact-item a:hover { color: var(--accent); }

.contact-socials { display: flex; gap: 12px; }
.soc-btn {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all 0.35s var(--ease-spring);
}
.soc-btn svg { width: 20px; height: 20px; }
.soc-btn:hover { background: var(--grad); color: #04120a; transform: translateY(-4px) rotate(-6deg); box-shadow: 0 10px 30px rgba(34,197,94,0.4); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 22px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 9px;
}
.form-group input, .form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 15px;
  resize: vertical;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-dim);
}
.form-group input.error, .form-group textarea.error { border-color: #ef4444; box-shadow: 0 0 0 4px rgba(239,68,68,0.15); }
.contact-form .btn { width: 100%; }

/* Form feedback */
.form-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface-2);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 16px 28px;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), visibility 0.4s;
  z-index: 999;
  text-align: center;
}
.form-toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* ============================================================
   FOOTER
============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--bg-2);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.site-footer p { color: var(--text-muted); font-size: 14px; }
.footer-top { color: var(--accent); font-size: 14px; font-weight: 600; transition: opacity 0.3s; }
.footer-top:hover { opacity: 0.75; }

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .section { padding: 80px 0; }
  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding-top: calc(var(--nav-h) + 20px); }
  .hero-typed { min-width: 140px; }
  .scroll-hint { display: none; }
  .contact-form { padding: 30px 24px; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .hero-stats { gap: 20px; }
  .timeline { padding-left: 28px; }
  html[dir="rtl"] .timeline { padding-right: 28px; padding-left: 0; }
  .tl-dot { left: -28px; width: 14px; height: 14px; }
  html[dir="rtl"] .tl-dot { left: auto; right: -28px; }
}

/* ============================================================
   REDUCED MOTION
============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}