/* =========================================================
   Alejandro Gil — Portfolio
   Design system: clean, neutral, technical.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --bg: #F7F7F5;
  --surface: #FFFFFF;
  --line: #E2E2DC;
  --ink: #15161A;
  --ink-soft: #5B5D63;
  --ink-faint: #93959B;
  --accent: #B23A2E;
  --accent-tint: #F5E7E4;
  --radius: 3px;
  --max: 1120px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img, video{ max-width:100%; display:block; }

a{ color: inherit; text-decoration: none; }

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

p{ margin: 0 0 1em; color: var(--ink-soft); }

.wrap{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

.mono{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  display:flex;
  align-items:center;
  gap: 8px;
  margin-bottom: 14px;
}

/* ---------- Nav ---------- */
.site-nav{
  position: sticky; top:0; z-index: 50;
  background: rgba(247,247,245,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.site-nav .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height: 64px;
}
.brand{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  display:flex; align-items:baseline; gap:8px;
}
.brand .dot{ color: var(--accent); }
.nav-links{ display:flex; gap: 28px; align-items:center; }
.nav-links a{
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: border-color .15s ease, color .15s ease;
}
.nav-links a:hover, .nav-links a.active{ color: var(--ink); border-color: var(--accent); }
.nav-toggle{ display:none; background:none; border:none; cursor:pointer; }

@media (max-width: 720px){
  .nav-links{
    position:fixed; inset: 64px 0 0 0; background: var(--bg);
    flex-direction:column; align-items:flex-start; padding: 28px;
    gap: 20px; transform: translateY(-8px); opacity:0; pointer-events:none;
    transition: opacity .18s ease, transform .18s ease;
  }
  .nav-links.open{ opacity:1; pointer-events:auto; transform: translateY(0); }
  .nav-toggle{ display:block; }
}

/* ---------- Hero ---------- */
.hero{ padding: 88px 0 64px; border-bottom: 1px solid var(--line); }
.hero h1{
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.05;
}
.ruler{
  width: 100%; max-width: 420px; height: 10px; margin: 18px 0 28px;
  background-image: repeating-linear-gradient(
    to right, var(--ink) 0, var(--ink) 1px, transparent 1px, transparent 12px
  );
  background-size: 100% 1px;
  background-position: bottom;
  background-repeat: no-repeat;
  position: relative;
}
.ruler::after{
  content:'';
  position:absolute; left:0; bottom:0; height: 10px; width: 1px; background: var(--accent);
  animation: tick 2.6s ease-in-out infinite;
}
@keyframes tick{
  0%{ left:0%; } 50%{ left: 96%; } 100%{ left:0%; }
}
.hero-bio{ max-width: 620px; font-size: 1.05rem; }
.stat-row{
  display:flex; flex-wrap:wrap; gap: 28px; margin-top: 32px;
  padding-top: 24px; border-top: 1px solid var(--line);
}
.stat{ font-family: var(--font-mono); font-size: 0.82rem; color: var(--ink-soft); }
.stat b{ display:block; font-family: var(--font-display); font-size: 1.5rem; color: var(--ink); font-weight:600; }
.cta-row{ display:flex; gap:14px; margin-top: 32px; flex-wrap:wrap; }

.btn{
  font-family: var(--font-mono); font-size: 0.82rem; letter-spacing:0.02em;
  padding: 12px 20px; border-radius: var(--radius);
  border: 1px solid var(--ink); display:inline-flex; align-items:center; gap:8px;
  transition: background .15s ease, color .15s ease;
}
.btn.primary{ background: var(--ink); color: var(--bg); }
.btn.primary:hover{ background: var(--accent); border-color: var(--accent); }
.btn.ghost:hover{ background: var(--ink); color: var(--bg); }

/* ---------- Section shell ---------- */
section{ padding: 72px 0; border-bottom: 1px solid var(--line); }
section:last-of-type{ border-bottom: none; }
.section-head{ display:flex; justify-content:space-between; align-items:flex-end; gap: 20px; margin-bottom: 40px; flex-wrap:wrap; }
.section-head h2{ font-size: clamp(1.6rem, 3vw, 2.1rem); }

/* ---------- Project rows (spec-sheet style) ---------- */
.proj-list{ display:flex; flex-direction:column; }
.proj-row{
  display:grid; grid-template-columns: 220px 1fr; gap: 32px;
  padding: 28px 0; border-top: 1px solid var(--line);
  align-items:start;
}
.proj-row:last-child{ border-bottom: 1px solid var(--line); }
.proj-thumb{
  aspect-ratio: 16/10; overflow:hidden; background: var(--surface); border: 1px solid var(--line);
}
.proj-thumb img{ width:100%; height:100%; object-fit: cover; transition: transform .35s ease; }
.proj-row:hover .proj-thumb img{ transform: scale(1.04); }
.proj-tags{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom: 10px; }
.tag{
  font-family: var(--font-mono); font-size: 0.7rem; text-transform:uppercase; letter-spacing:0.04em;
  color: var(--ink-soft); border:1px solid var(--line); padding: 3px 8px; border-radius: 2px;
}
.proj-title{ font-size: 1.4rem; margin-bottom: 8px; }
.proj-title a{ border-bottom: 1px solid transparent; }
.proj-title a:hover{ border-color: var(--accent); color: var(--accent); }
.proj-summary{ max-width: 620px; margin-bottom: 0; }

@media (max-width: 720px){
  .proj-row{ grid-template-columns: 1fr; }
}

/* ---------- Case study ---------- */
.case-hero{ padding: 48px 0 40px; border-bottom: 1px solid var(--line); }
.case-meta{ display:flex; gap: 24px; flex-wrap:wrap; margin-top: 20px; }
.case-meta div{ font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-faint); }
.case-meta b{ display:block; color: var(--ink); font-family: var(--font-body); font-weight:600; font-size:0.92rem; margin-top:2px; }

.feature-media{ margin: 40px 0; border: 1px solid var(--line); background:#000; }
.feature-media video, .feature-media img{ width:100%; }

.beat{
  display:grid; grid-template-columns: 1fr 1fr; gap: 40px;
  padding: 44px 0; border-top: 1px solid var(--line);
  align-items:center;
}
.beat.reverse .beat-media{ order:2; }
.beat-media{ border:1px solid var(--line); overflow:hidden; background:#000; }
.beat-media video, .beat-media img{ width:100%; display:block; }
.beat-copy h3{ font-size:1.25rem; margin-bottom:12px; }
.beat-copy ul{ margin:0; padding-left: 18px; }
.beat-copy li{ color:var(--ink-soft); margin-bottom:8px; }

@media (max-width: 760px){
  .beat, .beat.reverse{ grid-template-columns:1fr; }
  .beat.reverse .beat-media{ order:0; }
}

/* ---------- About / timeline ---------- */
.timeline{ display:flex; flex-direction:column; }
.tl-item{ display:grid; grid-template-columns: 180px 1fr; gap:24px; padding: 26px 0; border-top:1px solid var(--line); }
.tl-item:last-child{ border-bottom:1px solid var(--line); }
.tl-date{ font-family: var(--font-mono); font-size:0.78rem; color: var(--ink-faint); }
.tl-role{ font-weight:600; font-size:1.05rem; margin-bottom:4px; font-family: var(--font-display); }
.tl-org{ font-family: var(--font-mono); font-size:0.78rem; color: var(--accent); margin-bottom:10px; display:block; }
.tl-item ul{ margin:0; padding-left:18px; }
.tl-item li{ color:var(--ink-soft); margin-bottom:6px; }
@media (max-width:640px){ .tl-item{ grid-template-columns:1fr; } }

.skills-grid{ display:grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 24px; }
.skill-card{ border:1px solid var(--line); background:var(--surface); padding:20px; }
.skill-card h4{ font-family:var(--font-mono); font-size:0.78rem; text-transform:uppercase; letter-spacing:0.04em; color:var(--ink-faint); margin-bottom:12px; }
.skill-card p{ color:var(--ink); margin:0; font-size:0.95rem; }

/* ---------- Contact / form ---------- */
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:48px; }
.field{ margin-bottom:18px; }
.field label{ display:block; font-family:var(--font-mono); font-size:0.75rem; text-transform:uppercase; letter-spacing:0.03em; color:var(--ink-soft); margin-bottom:6px; }
.field input, .field textarea{
  width:100%; border:1px solid var(--line); background:var(--surface);
  padding:12px 14px; font-family:var(--font-body); font-size:0.95rem; color:var(--ink);
  border-radius: var(--radius);
}
.field input:focus, .field textarea:focus{ outline:2px solid var(--accent); outline-offset:1px; border-color:var(--accent); }
.field textarea{ resize: vertical; min-height:120px; }
.form-note{ margin-top:14px; }
@media (max-width:760px){ .contact-grid{ grid-template-columns:1fr; } }

/* ---------- Footer ---------- */
footer{ padding: 40px 0; }
.footer-row{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:16px; align-items:center; }
.footer-links{ display:flex; gap:20px; }
.footer-links a{ font-family:var(--font-mono); font-size:0.78rem; color:var(--ink-soft); }
.footer-links a:hover{ color:var(--accent); }

/* Focus visibility */
a:focus-visible, button:focus-visible{ outline:2px solid var(--accent); outline-offset:2px; }