/* ============================================================
   Abdelrahman Yasser Mostafa · CV / portfolio
   Same design system as Rx handoff — change brand color: --accent
   ============================================================ */
:root {
  --accent: #bf7340;
  --accent-bright: #d98a52;
  --accent-string: #d9a577;
  --bg: #0a0a0a;
  --panel: #0d0d0d;
  --panel-2: #141414;
  --border: #1f1f1f;
  --border-2: #262626;
  --border-3: #2a2a2a;
  --text: #ededed;
  --muted: #a3a3a3;
  --dim: #737373;
  --faint: #525252;
  --font-sans: 'Geist', system-ui, sans-serif;
  --font-mono: 'Geist Mono', monospace;
}

html {
  scroll-behavior: smooth;
}


* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
}

a { color: inherit; }
a:hover { color: var(--accent-bright); }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Nav ---------- */
.nav { border-bottom: 1px solid var(--border); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font: 700 22px var(--font-sans);
  letter-spacing: -0.03em;
  color: #fff;
  text-decoration: none;
}
.logo .dot { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
}
.nav-links a:hover { color: var(--text); }
.nav-right { display: flex; align-items: center; gap: 12px; }

.btn {
  display: inline-block;
  text-decoration: none;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  border-radius: 7px;
  padding: 12px 22px;
}
.btn-light { background: var(--text); color: var(--bg); font-size: 13px; padding: 8px 16px; border-radius: 6px; }
.btn-light:hover { background: #fff; color: var(--bg); }
.btn-accent { background: var(--accent); color: var(--bg); }
.btn-accent:hover { background: var(--accent-bright); color: var(--bg); }
.btn-outline { border: 1px solid var(--border-3); color: var(--text); }
.btn-outline:hover { border-color: var(--faint); color: var(--text); }

/* ---------- Hero ---------- */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding-top: 88px;
  padding-bottom: 80px;
}
.hero { border-bottom: 1px solid var(--border); }
.hero-copy { display: flex; flex-direction: column; gap: 24px; }
.pill {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-3);
  border-radius: 999px;
  padding: 5px 14px;
  font: 500 12px var(--font-mono);
  color: var(--accent);
}
.pill::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
h1 {
  margin: 0;
  font-size: 56px;
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: #fff;
}
.lede {
  margin: 0;
  font-size: 17px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 44ch;
  text-wrap: pretty;
}
.hero-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font: 500 13px var(--font-mono);
  color: var(--dim);
}
.hero-meta a { text-decoration: none; }
.hero-meta a:hover { color: var(--accent-bright); }

/* ---------- Code windows ---------- */
.code-window {
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  overflow: hidden;
  direction: ltr;
}
.code-window.shadow { box-shadow: 0 20px 60px rgba(0, 0, 0, .5); }
.code-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.code-titlebar .dot-tl {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border-3);
}
.code-titlebar .filename {
  margin-left: 8px;
  font: 400 12px var(--font-mono);
  color: var(--dim);
}
.code-titlebar .lang-tag {
  margin-left: auto;
  font: 400 11px var(--font-mono);
  color: var(--faint);
}
.code-window pre {
  margin: 0;
  padding: 24px;
  font: 400 13.5px/1.8 var(--font-mono);
  color: #d4d4d4;
  overflow: auto;
  text-align: left;
}
.c { color: var(--faint); }
.k { color: var(--dim); }
.s { color: var(--accent-string); }
.n { color: #8cb4ff; }

/* ---------- Sections ---------- */
.section { border-bottom: 1px solid var(--border); }
.section .container { padding-top: 80px; padding-bottom: 80px; }
.eyebrow {
  margin: 0 0 8px;
  font: 500 13px var(--font-mono);
  color: var(--accent);
  letter-spacing: .08em;
}
h2 {
  margin: 0 0 48px;
  font-size: 34px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #fff;
}

/* ---------- Experience ---------- */
.experience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.exp-card {
  border: 1px solid var(--border-2);
  border-radius: 12px;
  padding: 32px;
  background: var(--panel);
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.exp-header {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.exp-header .step-num {
  font: 500 13px var(--font-mono);
  color: var(--faint);
  flex: none;
}
.exp-header h3 {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}
.exp-company {
  margin: 0;
  font: 500 14px var(--font-mono);
  color: var(--accent);
}
.exp-list {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.exp-list li {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- Skills (SDK layout) ---------- */
.sdk-grid {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: 48px;
  align-items: start;
  padding-top: 80px;
  padding-bottom: 80px;
}
.sdk-copy { display: flex; flex-direction: column; gap: 28px; }
.sdk-copy h2 { margin-bottom: 0; }
.features { display: flex; flex-direction: column; gap: 20px; }
.feature { display: flex; gap: 14px; }
.feature-bar {
  flex: none;
  width: 3px;
  border-radius: 2px;
  background: var(--border-3);
}
.feature.lead .feature-bar { background: var(--accent); }
.feature h4 { margin: 0 0 4px; font-size: 15px; font-weight: 600; color: var(--text); }
.feature p { margin: 0; font-size: 14px; line-height: 1.6; color: var(--muted); }

/* ---------- Projects ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.usecases {
  grid-template-columns: repeat(3, 1fr);
  row-gap: 1px;
}
.step {
  background: var(--panel);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.step-num { font: 500 13px var(--font-mono); color: var(--faint); }
.step h3 { margin: 0; font-size: 18px; font-weight: 600; color: var(--text); }
.step p { margin: 0; font-size: 14.5px; line-height: 1.6; color: var(--muted); }

/* ---------- Education ---------- */
.education-block { padding-top: 80px; padding-bottom: 80px; }
.education-block h2 { margin-bottom: 12px; }
.education-detail {
  margin: 0;
  font: 500 15px var(--font-mono);
  color: var(--muted);
}

/* ---------- Footer ---------- */
.footer .container {
  padding-top: 96px;
  padding-bottom: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}
.footer h2 { margin: 0; font-size: 44px; letter-spacing: -0.03em; }
.footer .sub { margin: 0; font-size: 16px; color: var(--muted); max-width: 48ch; }
.footer-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-meta {
  margin-top: 40px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  font: 400 12.5px var(--font-mono);
  color: var(--faint);
}
.footer-meta .logo { font-size: 15px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid, .sdk-grid { grid-template-columns: 1fr; }
  .experience-grid, .steps, .usecases { grid-template-columns: 1fr; }
  h1 { font-size: 40px; }
  .nav-links { display: none; }
}