/* ============================================================
   Daniel Zúñiga Rojas — Portfolio
   Design tokens
   ============================================================ */
:root {
  /* Palette */
  --bg: #161311;
  --bg-panel: #0e0c0b;
  --bg-frame: #141110;
  --bg-canvas-a: #1d1916;
  --bg-canvas-b: #161311;

  --ink: #f7f3ec;
  --ink-2: #f2ede6;
  --ink-3: #e4dcd2;
  --ink-4: #dcd3c8;
  --ink-5: #c6bcb1;
  --ink-6: #bcb1a6;
  --ink-7: #a89d92;
  --ink-8: #9d938a;
  --ink-9: #8d837a;
  --ink-10: #938b82;
  --ink-11: #8b837b;
  --ink-12: #8a837d;

  --accent: #d98a4f;
  --accent-hover: #f0a165;
  --accent-tint-06: rgba(217, 138, 79, .06);
  --accent-tint-12: rgba(217, 138, 79, .12);
  --accent-border-28: rgba(217, 138, 79, .28);
  --accent-border-50: rgba(217, 138, 79, .5);

  --line: rgba(255, 255, 255, .07);
  --line-2: rgba(255, 255, 255, .09);
  --line-3: rgba(255, 255, 255, .1);
  --line-4: rgba(255, 255, 255, .14);
  --line-5: rgba(255, 255, 255, .16);
  --panel: rgba(255, 255, 255, .03);
  --panel-hover: rgba(255, 255, 255, .06);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', monospace;

  /* Responsive tokens — desktop defaults, overridden below */
  --hero-cols: 1.05fr .95fr;
  --hero-gap: 54px;
  --hero-pad: 76px;
  --h1-size: 68px;
  --canvas-h: 540px;
  --layer-cols: repeat(3, 1fr);
  --detail-cols: 300px 1fr;
  --exp-cols: 250px 1fr;
  --proj-cols: 390px 1fr;
  --frame-h: 520px;
  --skill-cols: 1fr 1fr;
  --edu-cols: 1fr 1fr;
  --contact-cols: 1fr 280px;
  --cta-size: 58px;
  --shot-narrow-w: 42%;
}

@media (max-width: 1119px) {
  :root { --proj-cols: 1fr; }
}
@media (max-width: 899px) {
  :root {
    --hero-cols: 1fr;
    --hero-gap: 34px;
    --hero-pad: 48px;
    --h1-size: 58px;
    --canvas-h: 440px;
    --layer-cols: repeat(3, 1fr);
    --detail-cols: 1fr;
    --exp-cols: 1fr;
    --frame-h: 420px;
    --skill-cols: 1fr;
    --edu-cols: 1fr;
    --contact-cols: 1fr;
  }
}
@media (max-width: 619px) {
  :root {
    --h1-size: 44px;
    --canvas-h: 360px;
    --layer-cols: 1fr 1fr;
    --frame-h: 300px;
    --cta-size: 40px;
    --shot-narrow-w: 70%;
  }
}

/* ============================================================
   Fonts — variable woff2, single file covers the weight range
   ============================================================ */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url('fonts/jetbrains-mono-latin.woff2') format('woff2');
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('fonts/space-grotesk-latin.woff2') format('woff2');
}

/* ============================================================
   Reset & base
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-display);
  -webkit-font-smoothing: antialiased;
}

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

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

::selection { background: var(--accent); color: var(--bg); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

@keyframes dzblink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .blink { animation: none; }
  * { transition-duration: .01ms !important; }
}

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 26px; }

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(22, 19, 17, .82);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav__mark {
  width: 13px;
  height: 13px;
  background: var(--accent);
  transform: rotate(45deg);
  flex: none;
}
.nav__word {
  font: 500 12px var(--font-mono);
  letter-spacing: .18em;
  color: var(--ink);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav__link {
  font: 400 12px var(--font-mono);
  color: var(--ink-8);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 4px;
  transition: color .15s, background .15s;
}
.nav__link:hover { color: var(--ink); background: var(--panel-hover); }
.nav__cta {
  font: 500 12px var(--font-mono);
  color: var(--bg);
  background: var(--accent);
  text-decoration: none;
  padding: 9px 14px;
  border-radius: 4px;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: background .15s;
}
.nav__cta:hover { background: var(--accent-hover); color: var(--bg); }

/* ============================================================
   Buttons (shared)
   ============================================================ */
.btn {
  font: 500 13px var(--font-mono);
  text-decoration: none;
  padding: 0 20px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  transition: background .15s, border-color .15s, color .15s;
  border: 1px solid transparent;
}
.btn--primary { color: var(--bg); background: var(--accent); }
.btn--primary:hover { background: var(--accent-hover); color: var(--bg); }
.btn--outline { color: var(--ink-3); border-color: var(--line-5); }
.btn--outline:hover { border-color: var(--accent); color: var(--ink); }
.btn--block { height: 52px; width: 100%; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  display: grid;
  grid-template-columns: var(--hero-cols);
  gap: var(--hero-gap);
  padding: var(--hero-pad) 0 40px;
  align-items: center;
}
.hero__eyebrow {
  font: 400 12px var(--font-mono);
  letter-spacing: .24em;
  color: var(--accent);
}
.hero__title {
  margin: 22px 0 0;
  font: 700 var(--h1-size) / .98 var(--font-display);
  letter-spacing: -.04em;
  color: var(--ink);
  text-wrap: balance;
}
.hero__lede {
  margin-top: 20px;
  font: 400 17px / 1.6 var(--font-display);
  color: var(--ink-7);
  max-width: 520px;
  text-wrap: pretty;
}
.hero__actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero__stats {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
}
.stat__num { font: 700 27px var(--font-display); color: var(--ink); }
.stat__label {
  margin-top: 3px;
  font: 400 11px var(--font-mono);
  color: var(--ink-10);
  letter-spacing: .1em;
}

/* ============================================================
   3D scene
   ============================================================ */
.scene {
  position: relative;
  height: var(--canvas-h);
  border: 1px solid var(--line-3);
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg-canvas-a), var(--bg-canvas-b));
}
.scene__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: none;
}
.scene__canvas.is-dragging { cursor: grabbing; }
.scene__hint {
  position: absolute;
  left: 18px;
  top: 16px;
  font: 400 10.5px var(--font-mono);
  color: var(--ink-11);
  letter-spacing: .14em;
  pointer-events: none;
}

/* ============================================================
   Layer picker + detail
   ============================================================ */
.layers {
  display: grid;
  grid-template-columns: var(--layer-cols);
  gap: 14px;
  padding-bottom: 24px;
}
.layer-card {
  cursor: pointer;
  padding: 14px 16px;
  border-radius: 8px;
  border: 1px solid var(--line-3);
  background: var(--panel);
  min-height: 44px;
  text-align: left;
  font-family: inherit;
  transition: border-color .15s, background .15s;
}
.layer-card:hover { border-color: var(--accent-border-50); }
.layer-card.is-active {
  border-color: var(--accent-border-50);
  background: var(--accent-tint-12);
}
.layer-card__kind {
  font: 400 10px var(--font-mono);
  letter-spacing: .14em;
  color: var(--ink-10);
}
.layer-card.is-active .layer-card__kind { color: var(--accent); }
.layer-card__org {
  margin-top: 7px;
  font: 500 15px / 1.25 var(--font-display);
  color: var(--ink-2);
}
.layer-card__when {
  margin-top: 4px;
  font: 400 10.5px var(--font-mono);
  color: var(--ink-10);
}

.layer-detail {
  border: 1px solid var(--accent-border-28);
  background: var(--accent-tint-06);
  border-radius: 12px;
  padding: 30px;
  margin-bottom: 70px;
}
.layer-detail[hidden] { display: none; }
.layer-detail__grid {
  display: grid;
  grid-template-columns: var(--detail-cols);
  gap: 28px;
}
.layer-detail__kind {
  font: 400 11px var(--font-mono);
  letter-spacing: .16em;
  color: var(--accent);
}
.layer-detail__title {
  margin-top: 10px;
  font: 700 26px / 1.14 var(--font-display);
  letter-spacing: -.02em;
  color: var(--ink);
}
.layer-detail__org {
  margin-top: 8px;
  font: 500 15px var(--font-display);
  color: var(--ink-5);
}
.layer-detail__meta {
  margin-top: 4px;
  font: 400 12px / 1.6 var(--font-mono);
  color: var(--ink-10);
}
.layer-detail__tags {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  font: 400 10.5px var(--font-mono);
  color: var(--ink-8);
  border: 1px solid var(--line-4);
  padding: 5px 9px;
  border-radius: 3px;
}
.layer-detail__bullets {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.bullet { display: flex; gap: 12px; }
.bullet::before {
  content: '';
  flex: none;
  width: 5px;
  height: 5px;
  margin-top: 8px;
  background: var(--accent);
}
.bullet p {
  font: 400 15px / 1.6 var(--font-display);
  color: var(--ink-6);
  text-wrap: pretty;
}

/* ============================================================
   Section shell
   ============================================================ */
.section { padding-bottom: 70px; scroll-margin-top: 80px; }
.section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line-2);
}
.section__num {
  font: 400 11px var(--font-mono);
  letter-spacing: .2em;
  color: var(--accent);
}
.section__title {
  margin: 0;
  font: 700 32px var(--font-display);
  letter-spacing: -.025em;
  color: var(--ink);
}

/* ============================================================
   Experience
   ============================================================ */
#experience { padding: 20px 0 70px; }
.exp-block { padding-top: 34px; }
.exp-block + .exp-block { margin-top: 38px; padding-top: 38px; border-top: 1px solid var(--line); }
.exp-grid { display: grid; grid-template-columns: var(--exp-cols); gap: 26px; }
.exp-org { font: 700 25px var(--font-display); color: var(--ink); letter-spacing: -.02em; }
.exp-meta { margin-top: 6px; font: 400 12.5px / 1.7 var(--font-mono); color: var(--ink-10); }
.exp-items { display: flex; flex-direction: column; gap: 15px; }
.exp-items p { font: 400 15.5px / 1.65 var(--font-display); color: var(--ink-6); text-wrap: pretty; }

/* ============================================================
   Selected work
   ============================================================ */
.projects { display: flex; flex-direction: column; gap: 22px; padding-top: 34px; }
.project-card {
  border: 1px solid var(--line-3);
  border-radius: 12px;
  background: var(--panel);
  overflow: hidden;
}
.project-card__grid { display: grid; grid-template-columns: var(--proj-cols); gap: 0; }
.project-info { padding: 26px 26px 28px; }
.project-tags { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.project-when { font: 400 11px var(--font-mono); color: var(--accent); letter-spacing: .12em; }
.project-role { font: 400 11px var(--font-mono); color: var(--ink-10); letter-spacing: .12em; }
.project-title {
  margin-top: 10px;
  font: 700 23px / 1.18 var(--font-display);
  color: var(--ink);
  letter-spacing: -.02em;
}
.project-body { margin-top: 12px; font: 400 15px / 1.65 var(--font-display); color: var(--ink-7); text-wrap: pretty; }
.project-stack { margin-top: 16px; font: 400 10.5px / 1.8 var(--font-mono); color: var(--ink-11); letter-spacing: .06em; }
.project-links { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.project-link {
  font: 500 11.5px var(--font-mono);
  color: var(--ink-3);
  text-decoration: none;
  border: 1px solid var(--line-5);
  border-radius: 4px;
  padding: 0 14px;
  height: 46px;
  display: flex;
  align-items: center;
  transition: border-color .15s, color .15s;
}
.project-link:hover { border-color: var(--accent); color: var(--ink); }
.project-note { margin-top: 16px; font: 400 11px / 1.6 var(--font-mono); color: var(--ink-12); }

.project-media {
  background: var(--bg-panel);
  border-left: 1px solid var(--line);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.project-frame {
  border-radius: 7px;
  overflow: hidden;
  background: var(--bg-frame);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
}
.project-frame img {
  height: auto;
  max-height: var(--frame-h);
  object-fit: contain;
}
.project-frame img.shot--wide { width: 100%; }
.project-frame img.shot--narrow { width: var(--shot-narrow-w); }
.project-caption { font: 400 11.5px / 1.5 var(--font-mono); color: var(--ink-9); min-height: 34px; }
.project-thumbs { display: flex; flex-wrap: wrap; gap: 8px; }
.thumb {
  height: 52px;
  border-radius: 5px;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--line-4);
  background: var(--bg-frame);
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: .55;
  padding: 0;
  transition: opacity .15s, border-color .15s;
}
.thumb:hover { opacity: 1; }
.thumb.is-active { opacity: 1; border-color: var(--accent); }
.thumb--wide { width: 92px; }
.thumb--narrow { width: 34px; }
.thumb img { max-width: 100%; max-height: 100%; object-fit: contain; }

/* ============================================================
   Stack / Education
   ============================================================ */
.stack-grid { display: grid; grid-template-columns: var(--skill-cols); gap: 30px; padding-top: 34px; }
.stack-label { font: 400 10.5px var(--font-mono); letter-spacing: .16em; color: var(--accent); }
.stack-list { margin-top: 10px; font: 500 16px / 1.7 var(--font-display); color: var(--ink-4); }

.edu-grid { margin-top: 44px; display: grid; grid-template-columns: var(--edu-cols); gap: 26px; }
.edu-card { border: 1px solid var(--line-3); border-radius: 10px; padding: 22px; }
.edu-card__label { font: 400 10.5px var(--font-mono); letter-spacing: .16em; color: var(--ink-10); }
.edu-card__school { margin-top: 14px; font: 700 18px var(--font-display); color: var(--ink); }
.edu-card__school ~ .edu-card__school { margin-top: 18px; }
.edu-card__meta { margin-top: 5px; font: 400 12.5px / 1.6 var(--font-mono); color: var(--ink-9); }
.edu-card__desc { margin-top: 12px; font: 400 14px / 1.6 var(--font-display); color: var(--ink-7); text-wrap: pretty; }
.edu-tags { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 5px; }
.edu-tag {
  font: 400 10px var(--font-mono);
  color: var(--ink-9);
  border: 1px solid var(--line-4);
  padding: 4px 7px;
  border-radius: 3px;
}
.edu-divider { margin-top: 20px; height: 1px; background: var(--line-2); }
.edu-langs { margin-top: 16px; font: 400 12.5px / 1.8 var(--font-mono); color: var(--ink-9); }

/* ============================================================
   Contact / Footer
   ============================================================ */
#contact { padding-bottom: 26px; }
.contact__grid {
  border-top: 1px solid var(--line-2);
  padding-top: 50px;
  display: grid;
  grid-template-columns: var(--contact-cols);
  gap: 30px;
  align-items: end;
}
.contact__title {
  margin: 0;
  font: 700 var(--cta-size) / 1.02 var(--font-display);
  letter-spacing: -.035em;
  color: var(--ink);
}
.contact__info { margin-top: 18px; font: 400 13px / 1.8 var(--font-mono); color: var(--ink-9); }
.contact__actions { display: flex; flex-direction: column; gap: 10px; }

.footer {
  margin-top: 44px;
  padding-bottom: 34px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  font: 400 10.5px var(--font-mono);
  color: var(--ink-12);
  letter-spacing: .1em;
}

/* ============================================================
   Skip link (accessibility)
   ============================================================ */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--accent);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 4px;
  font: 500 13px var(--font-mono);
  z-index: 50;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}