/* =============================================
   danielquisbert.com — Página personal
   Dirección: lámina cartográfica suiza.
   Piedra fría, tinta, un acento azul petróleo,
   coordenadas en mono como firma.
   ============================================= */

:root {
  --paper: #F4F5F2;
  --ink: #161C1A;
  --muted: #5E6864;
  --line: rgba(22, 28, 26, 0.16);
  --accent: #0F4C5C;       /* azul hidrografía */
  --accent-soft: rgba(15, 76, 92, 0.10);
  --max: 1080px;
  --pad: clamp(1.4rem, 5vw, 3rem);
}

/* ---------- Tema oscuro ----------
   Automático si el sistema está en oscuro;
   [data-theme] (botón) tiene prioridad. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #141816;
    --ink: #ECEEEA;
    --muted: #98A29D;
    --line: rgba(236, 238, 234, 0.15);
    --accent: #6FB3C6;
    --accent-soft: rgba(111, 179, 198, 0.12);
  }
}
:root[data-theme="dark"] {
  --paper: #141816;
  --ink: #ECEEEA;
  --muted: #98A29D;
  --line: rgba(236, 238, 234, 0.15);
  --accent: #6FB3C6;
  --accent-soft: rgba(111, 179, 198, 0.12);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Archivo', system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

/* ---------- Utilidades tipográficas ---------- */
.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow.rule {
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  margin-bottom: 2.6rem;
}
.mono { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; letter-spacing: 0.08em; }

/* ---------- Nav ---------- */
.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.6rem var(--pad);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.nav-brand {
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}
.nav-links { display: flex; gap: 1.8rem; }
.nav-links a {
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--ink); }

/* ---------- Layout base ---------- */
main { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }

.section {
  padding: 4.2rem 0 1.4rem;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.section.in { opacity: 1; transform: none; }

/* ---------- Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  padding: clamp(2.5rem, 8vh, 6rem) 0 3.5rem;
}
.hero h1 {
  font-size: clamp(3.4rem, 9vw, 6.4rem);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.03em;
  margin: 1.1rem 0 1.5rem;
}
.hero-role {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--muted);
  max-width: 26em;
  margin-bottom: 2.2rem;
}
.hero-actions { display: flex; gap: 0.9rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 0.85rem 1.7rem;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  border-radius: 2px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-solid {
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
}
.btn-solid:hover { background: var(--accent); border-color: var(--accent); }
.btn-line {
  border: 1px solid var(--line);
  color: var(--ink);
}
.btn-line:hover { border-color: var(--ink); }

/* Foto con curvas de nivel detrás */
.hero-photo {
  position: relative;
  justify-self: end;
  width: min(100%, 360px);
}
.hero-photo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 2px;
  position: relative;
  z-index: 1;
}
.contours {
  position: absolute;
  inset: -14% -18% -14% -18%;
  width: 136%;
  height: 128%;
  color: var(--accent);
  opacity: 0.35;
  z-index: 0;
}

/* ---------- Pilares ---------- */
.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.4rem;
}
.pillar h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}
.pillar p {
  font-size: 0.92rem;
  color: var(--muted);
}

/* ---------- Lista de cursos ---------- */
.course-list { list-style: none; }
.course-list li { border-bottom: 1px solid var(--line); }
.course-list li:first-child { border-top: 1px solid var(--line); }
.course-list a {
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: 1.4rem;
  align-items: baseline;
  padding: 1.25rem 0.2rem;
  text-decoration: none;
  transition: background 0.2s, padding-left 0.25s;
}
.course-list a:hover { background: var(--accent-soft); padding-left: 0.8rem; }
.course-list a > span:first-child { font-weight: 600; font-size: 1.05rem; }
.course-sub { color: var(--muted); font-size: 0.92rem; }
.arrow { color: var(--accent); font-weight: 500; }

.note {
  margin-top: 1.6rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.note a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }

/* ---------- Lista de proyectos ---------- */
.project-list { list-style: none; }
.project-list li { border-bottom: 1px solid var(--line); }
.project-list li:first-child { border-top: 1px solid var(--line); }
.project-list a {
  display: grid;
  grid-template-columns: 260px 1fr auto;
  gap: 1.4rem;
  align-items: baseline;
  padding: 1.1rem 0.2rem;
  text-decoration: none;
  transition: background 0.2s, padding-left 0.25s;
}
.project-list a:hover { background: var(--accent-soft); padding-left: 0.8rem; }
.p-name { font-weight: 600; font-size: 0.98rem; }
.p-desc { color: var(--muted); font-size: 0.92rem; }

/* ---------- Bio ---------- */
.bio {
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  line-height: 1.55;
  max-width: 30em;
}
.bio strong { font-weight: 600; }

/* ---------- Contacto ---------- */
.big-mail {
  display: inline-block;
  font-size: clamp(1.6rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
  border-bottom: 2px solid var(--line);
  padding-bottom: 0.15em;
  transition: border-color 0.25s, color 0.25s;
}
.big-mail:hover { color: var(--accent); border-color: var(--accent); }

.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 2rem;
  margin-top: 2rem;
}
.contact-row a {
  font-size: 0.9rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.contact-row a:hover { color: var(--accent); }

/* ---------- Footer ---------- */
.footer {
  max-width: var(--max);
  margin: 4rem auto 0;
  padding: 1.6rem var(--pad) 2.2rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--muted);
}

/* ---------- Accesibilidad ---------- */
a:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .section { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0.01ms !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .pillars { grid-template-columns: repeat(2, 1fr); }
  .hero { grid-template-columns: 1fr; }
  .hero-photo { justify-self: start; width: min(78%, 320px); margin-top: 0.5rem; }
  .course-list a, .project-list a { grid-template-columns: 1fr auto; }
  .course-sub, .p-desc { grid-column: 1 / -1; margin-top: -0.5rem; padding-bottom: 0.2rem; }
}
@media (max-width: 540px) {
  .pillars { grid-template-columns: 1fr; gap: 1.8rem; }
  .nav-links { gap: 1.1rem; }
  .nav-links a:first-child { display: none; }
}

/* ---------- Toggle de tema ---------- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  align-self: center;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink); }
.theme-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* Sol visible en oscuro (para volver a claro), luna visible en claro */
.icon-sun { display: none; }
.icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun { display: block; }
  :root:not([data-theme="light"]) .icon-moon { display: none; }
}
:root[data-theme="dark"] .icon-sun { display: block; }
:root[data-theme="dark"] .icon-moon { display: none; }
:root[data-theme="light"] .icon-sun { display: none; }
:root[data-theme="light"] .icon-moon { display: block; }

/* Transición suave al cambiar de tema */
body, .btn, .theme-toggle, .course-list a, .project-list a {
  transition-property: background-color, color, border-color;
  transition-duration: 0.25s;
}

/* Ajustes finos en oscuro: foto y curvas de nivel */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero-photo img { border: 1px solid var(--line); }
  :root:not([data-theme="light"]) .contours { opacity: 0.45; }
  :root:not([data-theme="light"]) .btn-solid:hover { color: #141816; }
}
:root[data-theme="dark"] .hero-photo img { border: 1px solid var(--line); }
:root[data-theme="dark"] .contours { opacity: 0.45; }
:root[data-theme="dark"] .btn-solid:hover { color: #141816; }