/* ───────────────────────────────────────────────
   latif.us — personal site
   Professional base, techy accents (pairs with the
   home dashboard: amber LEDs, mono labels)
─────────────────────────────────────────────── */
:root {
  --paper: #f5f6f8;
  --panel: #ffffff;
  --ink: #16202e;
  --muted: #5b6675;
  --line: #e3e6ea;
  --amber: #c97a1f;
  --amber-bright: #ffb454;
  --dark: #0f1722;
  --dark-2: #101723;
  --dark-line: #1d2735;
  --dark-text: #dce3ec;
  --dark-muted: #7a8699;
  --green: #4ade80;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Space Grotesk", var(--sans);
  --maxw: 1040px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

a { color: var(--amber); }

::selection { background: rgba(255, 180, 84, 0.35); }

/* ── Nav ─────────────────────────────────────── */
.nav {
  background: var(--dark);
  border-bottom: 1px solid var(--dark-line);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  flex-wrap: wrap;
  padding-top: 8px;
  padding-bottom: 8px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--dark-text);
  text-decoration: none;
  white-space: nowrap;
}

.brand .led {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px rgba(74, 222, 128, 0.8);
  animation: pulse 2.6s ease-in-out infinite;
}

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.nav-links { display: flex; gap: 4px; flex-wrap: wrap; }

.nav-links a {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--dark-muted);
  text-decoration: none;
  padding: 7px 11px;
  border-radius: 8px;
  transition: color 0.15s ease, background 0.15s ease;
}

.nav-links a:hover { color: var(--dark-text); background: rgba(255,255,255,0.05); }

.nav-links a.active {
  color: var(--amber-bright);
  background: rgba(255, 180, 84, 0.1);
}

.nav-links a:focus-visible,
a.btn:focus-visible {
  outline: 2px solid var(--amber-bright);
  outline-offset: 2px;
}

/* ── Page header / hero ──────────────────────── */
.hero { padding: 72px 0 56px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 16px;
}

h1 {
  font-family: var(--display);
  font-size: clamp(2.3rem, 5.5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.04;
  margin: 0 0 18px;
}

.lede {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 640px;
  line-height: 1.7;
  margin: 0;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 10px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn.primary { background: var(--ink); color: #fff; }
.btn.primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(22,32,46,0.25); }
.btn.ghost { border: 1px solid var(--line); background: var(--panel); color: var(--ink); }
.btn.ghost:hover { border-color: var(--amber); color: var(--amber); }

/* ── Terminal card (signature) ───────────────── */
.terminal {
  margin-top: 48px;
  background: var(--dark);
  border: 1px solid var(--dark-line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 24px 50px rgba(15, 23, 34, 0.18);
}

.terminal .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--dark-line);
  background: var(--dark-2);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--dark-muted);
  letter-spacing: 0.05em;
}

.terminal .dots { display: flex; gap: 6px; }
.terminal .dots span { width: 9px; height: 9px; border-radius: 50%; background: var(--dark-line); }
.terminal .dots span:first-child { background: rgba(255,180,84,0.6); }

.terminal pre {
  margin: 0;
  padding: 20px 22px 24px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.85;
  color: var(--dark-text);
  overflow-x: auto;
}

.terminal .p { color: var(--green); }
.terminal .c { color: var(--dark-muted); }
.terminal .a { color: var(--amber-bright); }

/* ── Sections ────────────────────────────────── */
section.block { padding: 56px 0; }
section.block + section.block { border-top: 1px solid var(--line); }

h2 {
  font-family: var(--display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin: 0 0 8px;
}

.section-sub { color: var(--muted); margin: 0 0 32px; max-width: 620px; }

/* ── Cards / grids ───────────────────────────── */
.cards { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 700px) { .cards.cols-3 { grid-template-columns: repeat(3, 1fr); } .cards.cols-2 { grid-template-columns: repeat(2, 1fr); } }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

a.card { text-decoration: none; color: inherit; display: block; }

a.card:hover, a.card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--amber);
  box-shadow: 0 16px 36px rgba(22, 32, 46, 0.1);
}

a.card:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; }

.card .tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 12px;
}

.card h3 {
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 8px;
}

.card p { margin: 0; color: var(--muted); font-size: 0.93rem; }

.card .more {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
}

a.card:hover .more { color: var(--amber); }

/* ── Highlight strip ─────────────────────────── */
.facts { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; grid-template-columns: 1fr; }
@media (min-width: 700px) { .facts { grid-template-columns: repeat(4, 1fr); } }

.fact { background: var(--panel); padding: 20px 22px; }

.fact .k {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}

.fact .v {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 4px;
}

/* ── Timeline (experience) ───────────────────── */
.timeline { position: relative; padding-left: 28px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 6px; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--line);
}

.entry { position: relative; padding-bottom: 44px; }
.entry:last-child { padding-bottom: 0; }

.entry::before {
  content: "";
  position: absolute;
  left: -28px; top: 7px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--amber);
}

.entry .when {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
  text-transform: uppercase;
}

.entry h3 {
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 6px 0 2px;
}

.entry .org { color: var(--muted); font-size: 0.95rem; margin-bottom: 12px; }

.entry ul { margin: 0; padding-left: 20px; color: var(--muted); font-size: 0.95rem; }
.entry ul li { margin-bottom: 7px; }
.entry ul li::marker { color: var(--amber); }

/* ── Skills ──────────────────────────────────── */
.skill-group h3 {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 14px;
}

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

.chip {
  font-size: 0.86rem;
  padding: 7px 13px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink);
}

/* ── Case studies ────────────────────────────── */
.case {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 22px;
}

.case .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}

.case .meta b { color: var(--amber); font-weight: 600; }

.case h3 {
  font-family: var(--display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

.case h4 {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 22px 0 8px;
}

.case p { margin: 0; color: var(--muted); }

.case .status-live { color: var(--green); }

/* ── Contact ─────────────────────────────────── */
.contact-card {
  background: var(--dark);
  border: 1px solid var(--dark-line);
  border-radius: 16px;
  padding: 40px 32px;
  color: var(--dark-text);
  text-align: center;
}

.contact-card h2 { color: #fff; }
.contact-card p { color: var(--dark-muted); max-width: 480px; margin: 0 auto 26px; }

.btn.amber {
  background: linear-gradient(135deg, var(--amber-bright), var(--amber));
  color: #1a1206;
}
.btn.amber:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(255, 180, 84, 0.3); }

/* ── Footer ──────────────────────────────────── */
footer {
  margin-top: 64px;
  background: var(--dark);
  border-top: 1px solid var(--dark-line);
  color: var(--dark-muted);
}

footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 22px;
  padding-bottom: 22px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
}

footer a { color: var(--dark-text); text-decoration: none; }
footer a:hover { color: var(--amber-bright); }

@media (prefers-reduced-motion: reduce) {
  .led { animation: none; }
  .btn, a.card, .card { transition: none; }
  .btn:hover, a.card:hover { transform: none; }
}