/* ============================================================
   Yusef Alhmzy — Portfolio v2
   ============================================================ */
:root {
  --bg: #f4f1e8;
  --surface: #ffffff;
  --surface2: #eee8d5;
  --text: #1c1c24;
  --muted: #55525f;
  --border: #e2ddc9;

  --gold: #e8b923;
  --gold-dark: #a8801d;
  --purple: #7c4dff;
  --purple-soft: #a480ff;

  --radius: 16px;
  --radius-lg: 26px;
  --shadow: 0 10px 30px rgba(0,0,0,0.08);
  --glow-gold: 0 0 22px rgba(232,185,35,0.35);
  --font: 'Cairo', 'Segoe UI', Tahoma, sans-serif;
}

body.dark-theme {
  --bg: #0a0a10;
  --surface: #14141c;
  --surface2: #1b1b26;
  --text: #f2efe4;
  --muted: #a9a6b5;
  --border: #262631;
  --shadow: 0 10px 30px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  transition: background-color .3s ease, color .3s ease;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
section { padding: 100px 6vw; position: relative; }
.container { max-width: 1140px; margin: 0 auto; }

.eyebrow {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 14px;
}
body:not(.dark-theme) .eyebrow { color: var(--gold-dark); }

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 16px;
}
.section-sub {
  color: var(--muted);
  max-width: 620px;
  margin-bottom: 50px;
  font-size: 1.02rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 700;
  font-size: .95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.btn-gold { background: linear-gradient(135deg, var(--gold), #ffd35c); color: #0d0d14; }
.btn-gold:hover { transform: translateY(-3px); box-shadow: var(--glow-gold); }
.btn-ghost { background: transparent; border: 1.5px solid var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 6vw;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
  transition: padding .25s ease;
}
.navbar.scrolled { padding: 10px 6vw; box-shadow: var(--shadow); }

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--text);
}
.nav-logo img { width: 34px; height: 34px; border-radius: 9px; }

.nav-links {
  display: flex;
  gap: 6px;
  list-style: none;
}
.nav-links a {
  padding: 8px 16px;
  border-radius: 30px;
  text-decoration: none;
  font-size: .9rem;
  font-weight: 600;
  color: var(--muted);
  transition: .25s;
}
.nav-links a:hover, .nav-links a.active { color: var(--gold); background: var(--surface2); }

.nav-actions { display: flex; align-items: center; gap: 10px; }

.nav-select {
  padding: 7px 14px;
  border-radius: 30px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: .8rem;
  cursor: pointer;
}

.theme-switch {
  width: 46px; height: 26px;
  border-radius: 30px;
  background: var(--surface2);
  border: 1px solid var(--border);
  position: relative;
  cursor: pointer;
}
.theme-switch input { opacity: 0; position: absolute; inset: 0; cursor: pointer; margin: 0; }
.theme-switch .knob {
  position: absolute;
  top: 2px; left: 2px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--gold);
  transition: transform .3s ease;
  pointer-events: none;
}
body.dark-theme .theme-switch .knob { transform: translateX(20px); background: var(--purple); }

.nav-burger {
  display: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 90px;
  position: relative;
  overflow: hidden;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .35;
  z-index: 0;
  pointer-events: none;
}
.hero-orb.o1 { width: 420px; height: 420px; background: var(--gold); top: -100px; inset-inline-end: -100px; }
.hero-orb.o2 { width: 380px; height: 380px; background: var(--purple); bottom: -120px; inset-inline-start: -100px; }

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
  width: 100%;
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero-title .accent {
  background: linear-gradient(135deg, var(--gold), var(--purple-soft));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-tagline { color: var(--muted); font-size: 1.15rem; max-width: 540px; margin-bottom: 34px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }

.hero-stats { display: flex; gap: 30px; flex-wrap: wrap; }
.hero-stat .num { font-size: 1.7rem; font-weight: 800; color: var(--gold); }
.hero-stat .label { font-size: .82rem; color: var(--muted); }

.hero-portrait {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-portrait-ring {
  width: min(320px, 80vw);
  aspect-ratio: 1;
  border-radius: 50%;
  padding: 8px;
  background: conic-gradient(from 0deg, var(--gold), var(--purple), var(--gold));
  animation: spin 12s linear infinite;
}
.hero-portrait-ring img {
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 6px solid var(--bg);
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== ABOUT ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.about-text p { color: var(--muted); margin-bottom: 18px; font-size: 1.02rem; }
.about-text strong { color: var(--text); }

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}
.timeline-card h4 { color: var(--gold); margin-bottom: 6px; font-size: .95rem; }
.timeline-card p { color: var(--muted); font-size: .88rem; }
.timeline-card + .timeline-card { margin-top: 16px; }

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
}
.skill-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: transform .25s ease, border-color .25s ease;
}
.skill-chip:hover { transform: translateY(-5px); border-color: var(--gold); }
.skill-chip .icon { font-size: 1.8rem; margin-bottom: 8px; }
.skill-chip .name { font-weight: 700; font-size: .9rem; }
.skill-chip .level { font-size: .75rem; color: var(--muted); margin-top: 4px; }

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 26px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform .3s ease;
}
.project-card:hover { transform: translateY(-6px); }
.project-card .thumb-wrap { height: 190px; overflow: hidden; background: var(--surface2); }
.project-card .thumb-wrap img { width: 100%; height: 100%; object-fit: cover; }
.project-card-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.project-card-body h3 { font-size: 1.15rem; margin-bottom: 10px; }
.project-card-body p { color: var(--muted); font-size: .9rem; flex: 1; margin-bottom: 18px; }
.project-links { display: flex; gap: 10px; }
.project-links a {
  font-size: .82rem; font-weight: 700; text-decoration: none;
  padding: 8px 16px; border-radius: 30px; border: 1px solid var(--border);
}
.project-links a:hover { border-color: var(--gold); color: var(--gold); }
.projects-empty { color: var(--muted); text-align: center; padding: 40px; grid-column: 1/-1; }

/* ===== SERVICES ===== */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.service-card .icon {
  width: 50px; height: 50px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--gold), var(--purple-soft));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}
.service-card h3 { margin-bottom: 10px; font-size: 1.05rem; }
.service-card p { color: var(--muted); font-size: .9rem; }

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.contact-form input, .contact-form textarea {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: .95rem;
}
.contact-form textarea { min-height: 130px; resize: vertical; }
.hp-field { position: absolute; left: -9999px; opacity: 0; }
.form-msg { font-size: .88rem; padding: 10px 14px; border-radius: 10px; display: none; }
.form-msg.show { display: block; }
.form-msg.ok { background: #12321c; color: #a8f0c0; }
.form-msg.err { background: #3a1414; color: #ffb3b3; }

.social-list { display: flex; flex-direction: column; gap: 14px; }
.social-row {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  transition: .25s;
}
.social-row:hover { border-color: var(--gold); transform: translateX(-4px); }
body[dir="ltr"] .social-row:hover { transform: translateX(4px); }
.social-row .ic { font-size: 1.3rem; }

/* ===== FOOTER ===== */
footer.site-footer {
  padding: 40px 6vw;
  text-align: center;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .85rem;
}

/* ===== reveal-on-scroll ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== custom cursor glow (subtle, desktop only) ===== */
.cursor-glow {
  position: fixed;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232,185,35,0.08), transparent 70%);
  pointer-events: none;
  z-index: 1;
  transform: translate(-50%, -50%);
  transition: opacity .3s ease;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-portrait { order: -1; }
  .nav-links { display: none; }
  .nav-burger { display: block; }
}

@media (max-width: 600px) {
  section { padding: 70px 5vw; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-stats { gap: 20px; }

  /* منع تجاوز عناصر شريط التنقل عرض الشاشة على الهواتف */
  .navbar { padding: 12px 4vw; gap: 8px; }
  .navbar.scrolled { padding: 8px 4vw; }
  .nav-logo span { display: none; }
  .nav-actions { gap: 6px; }
  .nav-select {
    padding: 6px 10px;
    font-size: .72rem;
    max-width: 84px;
  }
  .theme-switch { width: 40px; height: 24px; flex-shrink: 0; }
  .theme-switch .knob { width: 18px; height: 18px; }
  body.dark-theme .theme-switch .knob { transform: translateX(16px); }
  .nav-burger { width: 36px; height: 36px; font-size: 1rem; flex-shrink: 0; }

  .hero-title { text-align: center; }
  .hero-tagline { margin-left: auto; margin-right: auto; }
  .hero-cta, .hero-stats { justify-content: center; }
  .hero > .container.hero-grid > div:first-child { text-align: center; }
}

/* هواتف ضيقة جدًا (320–380px) */
@media (max-width: 380px) {
  .navbar { padding: 10px 3vw; }
  .nav-select { max-width: 70px; font-size: .68rem; padding: 6px 8px; }
  section { padding: 56px 4vw; }
}

/* منع أي عنصر من التسبب بتمرير أفقي على الهواتف */
@media (max-width: 900px) {
  html, body { overflow-x: hidden; width: 100%; }
  .container, section { max-width: 100vw; }
}

/* Mobile nav drawer */
.mobile-drawer {
  position: fixed; inset: 0;
  background: var(--bg);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  padding: 24px;
  transform: translateX(100%);
  transition: transform .3s ease;
}
body[dir="rtl"] .mobile-drawer { transform: translateX(100%); }
body[dir="ltr"] .mobile-drawer { transform: translateX(-100%); }
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer .close-drawer { align-self: flex-end; font-size: 1.5rem; background: none; border: none; color: var(--text); cursor: pointer; }
.mobile-drawer a { padding: 18px 0; font-size: 1.2rem; font-weight: 700; text-decoration: none; color: var(--text); border-bottom: 1px solid var(--border); }