/* ============================================================
   Portfolio Pol — tokens y estilos
   Dark por defecto; light vía [data-theme='light'] en <html>
   ============================================================ */

:root {
  --bg: #0E0F11;
  --surface: #15171A;
  --surface2: #1B1E22;
  --text: #EDEDED;
  --sub: #A6AAB1;
  --border: rgba(237, 237, 237, .10);
  --accent: #E8A24A;
  --accent-text: var(--accent);
  --accent-soft: color-mix(in oklab, var(--accent) 14%, transparent);
  --shadow: 0 14px 34px rgba(0, 0, 0, .35);
  --font-sans: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-serif: 'PT Serif', serif;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
  --container: 1120px;
  --pad-x: clamp(18px, 4.5vw, 44px);
}

:root[data-theme='light'] {
  --bg: #FAF8F4;
  --surface: #FFFFFF;
  --surface2: #F0EDE7;
  --text: #1B1D20;
  --sub: #575D65;
  --border: rgba(27, 29, 32, .13);
  --accent-text: color-mix(in oklab, var(--accent) 60%, #1B1D20);
  --accent-soft: color-mix(in oklab, var(--accent) 14%, transparent);
  --shadow: 0 12px 28px rgba(27, 29, 32, .08);
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: #141517; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

.fade-1 { animation: fadeUp .5s .05s both; }
.fade-2 { animation: fadeUp .5s .12s both; }
.fade-3 { animation: fadeUp .5s .20s both; }
.fade-4 { animation: fadeUp .5s .26s both; }
.fade-5 { animation: fadeUp .5s .32s both; }
.fade-6 { animation: fadeUp .5s .40s both; }
.fade-7 { animation: fadeUp .5s .46s both; }
.fade-8 { animation: fadeUp .5s .52s both; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-1, .fade-2, .fade-3, .fade-4, .fade-5, .fade-6, .fade-7, .fade-8 { animation: none; }
}

/* ===== Header ===== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  color: var(--text);
}

.brand-dot { color: var(--accent-text); }

.nav-desktop {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 26px);
}

.nav-desktop a {
  text-decoration: none;
  color: var(--sub);
  font-size: 14px;
  font-weight: 500;
  transition: color .15s;
}

.nav-desktop a:hover { color: var(--text); }

.header-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-group {
  display: flex;
  gap: 2px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 3px;
}

.lang-group button {
  border: none;
  cursor: pointer;
  border-radius: 99px;
  padding: 5px 10px;
  font: 600 11.5px var(--font-sans);
  letter-spacing: .06em;
  background: transparent;
  color: var(--sub);
  transition: background .15s, color .15s;
}

.lang-group button[aria-pressed='true'] {
  background: var(--accent);
  color: #141517;
}

.icon-btn {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--sub);
  cursor: pointer;
  transition: color .15s, border-color .15s;
}

.icon-btn:hover { color: var(--text); border-color: var(--accent); }

/* Theme toggle: en dark se muestra el sol (ir a claro), en light la luna */
.icon-moon { display: none; }
:root[data-theme='light'] .icon-sun { display: none; }
:root[data-theme='light'] .icon-moon { display: block; }

.burger { display: none; border-radius: 8px; color: var(--text); }
.icon-close { display: none; }
.burger[aria-expanded='true'] .icon-burger { display: none; }
.burger[aria-expanded='true'] .icon-close { display: block; }

.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 8px var(--pad-x) 16px;
}

.nav-mobile a {
  text-decoration: none;
  color: var(--text);
  font-size: 16px;
  font-weight: 500;
  padding: 13px 4px;
  border-bottom: 1px solid var(--border);
}

@media (max-width: 859px) {
  .nav-desktop { display: none; }
  .burger { display: flex; }
  .nav-mobile:not([hidden]) { display: flex; }
}

/* ===== Secciones ===== */

.section { border-top: 1px solid var(--border); scroll-margin-top: 76px; }
.section-alt { background: var(--surface); }

.section-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(60px, 9vw, 100px) var(--pad-x);
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 34px;
}

.section-head-wide { margin-bottom: 44px; }
.section-head-tight { margin-bottom: 10px; }

.section-num {
  font: 600 12px var(--font-mono);
  letter-spacing: .14em;
  color: var(--accent-text);
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 38px);
  letter-spacing: -.01em;
}

/* ===== Hero ===== */

.hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(72px, 12vh, 130px) var(--pad-x) clamp(56px, 9vh, 96px);
  scroll-margin-top: 80px;
}

.hero-kicker {
  margin: 0 0 18px;
  font: 600 13px var(--font-mono);
  letter-spacing: .14em;
  color: var(--accent-text);
}

.hero-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(38px, 7vw, 76px);
  line-height: 1.06;
  letter-spacing: -.015em;
  max-width: 15ch;
}

.hero-title em { color: var(--accent-text); }

.hero-headline {
  margin: 26px 0 0;
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.45;
  font-weight: 500;
  max-width: 38ch;
}

.hero-subtitle {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.6;
  color: var(--sub);
  max-width: 60ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.btn {
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 10px;
}

.btn-primary {
  background: var(--accent);
  color: #141517;
  transition: filter .15s, transform .15s;
}

.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--surface);
  transition: border-color .15s;
}

.btn-outline:hover { border-color: var(--accent); }

.btn-ghost {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--sub);
  font-weight: 500;
  padding: 12px 14px;
  transition: color .15s;
}

.btn-ghost:hover { color: var(--text); }

.btn-dashed {
  border: 1px dashed var(--border);
  color: var(--sub);
  font-weight: 500;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 38px;
}

.chip-mono {
  font: 500 12.5px var(--font-mono);
  color: var(--sub);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 6px 12px;
  border-radius: 99px;
}

.hero-location {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 30px 0 0;
  font-size: 13.5px;
  color: var(--sub);
}

.loc-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}

.hero-site {
  margin: 10px 0 0;
  font-size: 13.5px;
  color: var(--sub);
}

.hero-site a {
  color: var(--accent-text);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid color-mix(in oklab, var(--accent) 45%, transparent);
  transition: border-color .15s;
}

.hero-site a:hover { border-bottom-color: var(--accent); }

/* ===== Sobre mí ===== */

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(340px, 100%), 1fr));
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.about-p {
  margin: 0;
  font-size: clamp(16.5px, 1.9vw, 19px);
  line-height: 1.75;
  color: var(--text);
  max-width: 62ch;
}

.about-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: clamp(22px, 3vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.card-kicker {
  margin: 0;
  font: 600 12px var(--font-mono);
  letter-spacing: .14em;
  color: var(--accent-text);
}

.about-diff {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 19px;
  line-height: 1.5;
}

.facts {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14.5px;
  color: var(--sub);
}

.fact { display: flex; gap: 10px; align-items: baseline; }
.diamond { color: var(--accent-text); }

.music-row {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.music-row .wave { flex: none; opacity: .8; }

.music-row p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--sub);
  font-style: italic;
}

/* ===== Experiencia (timeline) ===== */

.timeline { display: flex; flex-direction: column; }

.timeline-item {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: clamp(16px, 3vw, 30px);
  padding-bottom: clamp(36px, 5vw, 52px);
}

.timeline-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.timeline-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 7px;
  flex: none;
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.timeline-line {
  width: 1px;
  flex: 1;
  background: var(--border);
  margin-top: 12px;
}

.job-head {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: baseline;
}

.job-head h3 {
  margin: 0;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 600;
  letter-spacing: -.01em;
}

.job-company {
  color: var(--accent-text);
  font-weight: 600;
  font-size: 15px;
}

.job-meta {
  margin: 6px 0 0;
  font: 500 12.5px var(--font-mono);
  color: var(--sub);
}

.job-bullets {
  margin: 16px 0 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  color: var(--sub);
  font-size: 15px;
  line-height: 1.65;
  max-width: 74ch;
}

/* ===== Proyectos ===== */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 18px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: clamp(22px, 3vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform .18s, border-color .18s, box-shadow .18s;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in oklab, var(--accent) 55%, var(--border));
  box-shadow: var(--shadow);
}

.project-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
}

.project-head h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 700;
}

.project-tag {
  font: 600 11px var(--font-mono);
  letter-spacing: .08em;
  color: var(--accent-text);
  background: var(--accent-soft);
  padding: 5px 10px;
  border-radius: 99px;
  white-space: nowrap;
}

.project-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--sub);
  flex: 1;
}

.project-stack {
  margin: 0;
  font: 500 12px var(--font-mono);
  color: var(--sub);
  opacity: .85;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

/* ===== Servicios (Autotask) ===== */

.services-kicker {
  margin: 0 0 34px;
  font-size: 14px;
  color: var(--sub);
  font-weight: 500;
  letter-spacing: .02em;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(340px, 100%), 1fr));
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.services-lead {
  margin: 0;
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.7;
  color: var(--text);
  max-width: 58ch;
}

.chip-row-soft {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.chip-soft {
  font-size: 13px;
  font-weight: 500;
  color: var(--sub);
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 7px 13px;
  border-radius: 99px;
}

.services-quote {
  border-left: 2px solid var(--accent);
  padding: 6px 0 6px clamp(18px, 3vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.services-diff {
  margin: 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.5;
}

.services-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== Skills + Educación ===== */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 18px;
}

.skill-card,
.edu-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: clamp(20px, 3vw, 26px);
}

.edu-card { margin-top: 22px; }

.skill-card h3,
.edu-card h3 {
  margin: 0 0 16px;
  font: 600 12.5px var(--font-mono);
  letter-spacing: .12em;
  color: var(--accent-text);
  text-transform: uppercase;
}

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

.skill-tag {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 8px;
}

.edu-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
}

.edu-item {
  display: flex;
  gap: 9px;
  align-items: baseline;
  font-size: 14.5px;
  color: var(--sub);
}

/* ===== Contacto (footer) ===== */

.footer {
  border-top: 1px solid var(--border);
  scroll-margin-top: 76px;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(70px, 10vw, 120px) var(--pad-x) 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.contact-line {
  margin: 20px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(26px, 4.2vw, 44px);
  line-height: 1.25;
  letter-spacing: -.01em;
  max-width: 26ch;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 36px;
}

.contact-actions .btn { padding: 13px 24px; }

.contact-note {
  margin: 16px 0 0;
  font-size: 12.5px;
  color: var(--sub);
  opacity: .8;
}

.footer-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 64px;
  width: 100%;
  max-width: 520px;
}

.footer-divider .line {
  height: 1px;
  flex: 1;
  background: var(--border);
}

.wave-dim { opacity: .55; }

.copyright {
  margin: 22px 0 0;
  font-size: 13px;
  color: var(--sub);
}
