/* ==========================================================================
   Apple-style layer: neutral palette, system sans (SF Pro where available),
   centered hero with a round portrait, large rounded cards, frosted header.
   Loaded after main.css and overrides it.
   ========================================================================== */
:root {
  --sans:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter",
    "Segoe UI", system-ui, sans-serif;
  --mono: var(--sans);
  --code: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --bg: #fbfbfd;
  --surface: #ffffff;
  --soft: #f5f5f7;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --accent: #0066cc;
  --accent-ink: #ffffff;
  --line: #d2d2d7;
  --warm: #0066cc;
  --ok: #1d7d3f;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ring: 0 0 0 1px rgb(0 0 0 / 0.06);
  --lift: 0 0 0 1px rgb(0 0 0 / 0.05), 0 2px 12px rgb(0 0 0 / 0.04);
  --shadow: 0 18px 50px -16px rgb(0 0 0 / 0.22);
  --grad: linear-gradient(120deg, #0071e3 0%, #7a5af8 55%, #e5509b 100%);
}
:root[data-theme="dark"] {
  --bg: #000000;
  --surface: #1c1c1e;
  --soft: #0d0d0f;
  --ink: #f5f5f7;
  --muted: #a1a1a6;
  --accent: #2997ff;
  --accent-ink: #000000;
  --line: #38383a;
  --warm: #2997ff;
  --ok: #30d158;
  --ring: 0 0 0 1px rgb(255 255 255 / 0.09);
  --lift: 0 0 0 1px rgb(255 255 255 / 0.08);
  --shadow: 0 18px 50px -16px rgb(0 0 0 / 0.9);
  --grad: linear-gradient(120deg, #4aa8ff 0%, #a58bff 55%, #ff7ab8 100%);
}
html {
  -webkit-tap-highlight-color: transparent;
}
body {
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--sans);
  letter-spacing: -0.011em;
}
body::after {
  display: none;
}
h1,
h2,
h3 {
  text-wrap: balance;
}
p,
li {
  text-wrap: pretty;
}
button,
a,
summary {
  touch-action: manipulation;
}
.demo-row code,
.demo-note {
  font-family: var(--code);
}
/* Small labels: sentence-case sans instead of mono caps */
.label,
.project-card .meta,
.demo-module,
.learning-date,
.experience-number-date,
.pillar-tag,
.demo-detail dt,
.copy-hint,
.demo-status,
.profile-focus,
.pillar .pillar-stack,
.flow-num {
  font-family: var(--sans);
}
.label {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-transform: none;
}
.project-card .meta,
.demo-module,
.learning-date,
.experience-number-date,
.demo-detail dt {
  letter-spacing: 0.02em;
}
/* Header: frosted glass */
.topbar {
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 0;
  box-shadow: 0 1px 0 rgb(128 128 128 / 0.22);
}
.nav {
  min-height: 60px;
}
.brand {
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.navlinks a {
  color: var(--ink);
  opacity: 0.8;
  font-weight: 500;
  border-radius: 999px;
}
.navlinks a:hover,
.navlinks a[aria-current="location"] {
  background: transparent;
  color: var(--ink);
  opacity: 1;
}
.navlinks a[aria-current="location"] {
  font-weight: 600;
}
.nav-cv,
.switch,
.menu-toggle {
  border-color: transparent;
  box-shadow: none;
  background: var(--soft);
  color: var(--ink);
  border-radius: 999px;
}
.menu-toggle {
  border-radius: 14px;
}
.nav-cv {
  background: var(--accent);
  color: var(--accent-ink);
}
/* Buttons */
.btn {
  min-height: 48px;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition:
    transform 0.25s var(--ease),
    background-color 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}
.btn.secondary,
.btn.ghost {
  border-color: transparent;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--accent);
  box-shadow: none;
}
.btn:hover,
.social:hover {
  transform: none;
  box-shadow: none;
  opacity: 0.88;
}
.btn:active,
.social:active,
.demo-row:active,
.flow-step:active {
  transform: scale(0.97);
}
.social {
  border-color: transparent;
  background: var(--soft);
  color: var(--ink);
  box-shadow: none;
  border-radius: 999px;
  font-weight: 600;
}
/* Hero: centered, round portrait */
.hero {
  margin-top: clamp(32px, 7vw, 88px);
}
.hero-intro {
  position: relative;
  overflow: visible;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-items: center;
  gap: clamp(20px, 3vw, 32px);
  padding: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
  color: var(--ink);
  text-align: center;
}
.hero-intro::after {
  display: none;
}
.hero-intro::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -60px;
  left: 50%;
  width: min(760px, 120vw);
  aspect-ratio: 1.6;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(
    closest-side,
    color-mix(in srgb, var(--accent) 14%, transparent),
    transparent
  );
}
.hero-portrait {
  order: -1;
  width: clamp(150px, 22vw, 200px);
  height: clamp(150px, 22vw, 200px);
  max-width: none;
  aspect-ratio: 1;
  justify-self: center;
  border: 0;
  border-radius: 50%;
  object-fit: cover;
  object-position: center;
  box-shadow:
    0 0 0 1px rgb(128 128 128 / 0.25),
    0 0 0 8px color-mix(in srgb, var(--accent) 9%, transparent),
    0 24px 50px -20px rgb(0 0 0 / 0.5);
}
.hero-copy {
  display: grid;
  justify-items: center;
}
.hero-kicker {
  margin: 0 0 14px;
  padding: 0;
  border: 0;
  background: none;
  box-shadow: none;
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--accent);
}
.hero-kicker .dot {
  display: none;
}
h1 {
  margin: 0 0 14px;
  font-family: var(--sans);
  font-size: clamp(3.2rem, 9.5vw, 7rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.055em;
}
h1 span {
  font-style: normal;
  color: transparent;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-intro .profile-heading {
  margin: 0 0 18px;
  font-family: var(--sans);
  font-size: clamp(1.25rem, 3vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--ink);
}
.hero-intro .profile-heading::before {
  content: none;
}
.lead {
  max-width: 38em;
  margin: 0 auto;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.5;
  color: var(--muted);
}
.hero-actions,
.hero-intro .socials {
  justify-content: center;
}
.profile-focus {
  max-width: 44em;
  margin: 32px 0 6px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: -0.005em;
  color: var(--muted);
}
.profile-languages {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
}
/* Pillars: bento cards */
.pillars {
  width: 100%;
  gap: 16px;
  margin-top: clamp(32px, 6vw, 64px);
  text-align: left;
}
.pillar {
  padding: clamp(24px, 3.5vw, 40px);
  border: 0;
  border-radius: 28px;
  background: var(--soft);
  transition:
    transform 0.4s var(--ease),
    box-shadow 0.4s var(--ease);
}
:root:not([data-theme="dark"]) .pillar {
  background: var(--soft);
}
.pillar:hover {
  transform: scale(1.012);
  background: var(--soft);
  box-shadow: var(--shadow);
}
.pillar-tag {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--accent);
}
.pillar h2 {
  margin: 6px 0 12px;
  font-family: var(--sans);
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
}
.pillar p {
  color: var(--muted);
  font-size: 1.02rem;
}
.pillar .pillar-stack {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--ink);
}
/* Sections */
section {
  padding: clamp(72px, 11vw, 128px) 0;
}
h2 {
  font-family: var(--sans);
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.045em;
}
.sectionhead {
  margin-bottom: clamp(32px, 5vw, 56px);
}
#sobre-mi .sectionhead {
  border-left: 0;
  padding-left: 0;
  max-width: 900px;
}
#sobre-mi .sectionhead p {
  max-width: 40em;
  font-size: 1.1rem;
  line-height: 1.6;
}
#sobre-mi .sectionhead p:first-of-type {
  font-family: var(--sans);
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--ink);
}
#sobre-mi::before,
#experiencia::before {
  background: var(--soft);
}
.contact {
  background: var(--soft);
  text-align: center;
}
.contact .sectionhead {
  margin-inline: auto;
}
.contact .sectionhead h2 {
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  line-height: 1;
}
.contact .actions {
  justify-content: center;
}
/* Cards */
.card,
.learning-card,
.stack-panel,
.stack-tablist,
.timeline article,
.demo-shell,
.certificate-visual,
.stack-menu-trigger {
  border-color: transparent;
  box-shadow: none;
  background: var(--surface);
}
#proyectos .card,
#herramientas .learning-card,
#herramientas .stack-panel,
#herramientas .stack-tablist,
#demos .demo-shell {
  box-shadow: var(--lift);
}
#sobre-mi ~ #proyectos {
  background: none;
}
#experiencia .timeline article {
  box-shadow: none;
}
.card,
.learning-card,
.stack-panel,
.timeline article,
.demo-shell {
  border-radius: 28px;
}
.stack-tablist,
.certificate-visual {
  border-radius: 20px;
}
.demo-detail,
.demo-row,
.flow-step {
  border-color: transparent;
  background: var(--soft);
  box-shadow: none;
  border-radius: 18px;
}
.project-card,
.timeline article,
.demo-row,
.flow-step {
  transition-timing-function: var(--ease);
  transition-duration: 0.35s;
}
.project-card:hover,
.project-card[open],
.experience-link:hover article {
  border-color: transparent;
  box-shadow: var(--shadow);
}
.project-card:hover {
  transform: translateY(-2px);
}
.project-card > summary::before {
  margin-bottom: 10px;
  font-family: var(--sans);
  font-size: 0.9rem;
  font-style: normal;
  font-weight: 600;
  line-height: 1;
  color: var(--accent);
}
.project-card h3,
.timeline h3 {
  font-weight: 700;
  letter-spacing: -0.03em;
}
.project-card .meta {
  color: var(--muted);
}
.project-toggle {
  color: var(--accent);
}
.project-filters button,
.demo-tabs,
.demo-tabs button,
.demo-mode,
.demo-mode button,
.demo-badge {
  border-color: transparent;
  border-radius: 999px;
  box-shadow: none;
}
.project-filters button {
  background: var(--soft);
  color: var(--ink);
}
#proyectos .project-filters button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--bg);
}
.demo-tabs button[aria-selected="true"],
.demo-mode button[aria-pressed="true"] {
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 1px 4px rgb(0 0 0 / 0.18);
}
.demo-tabs,
.demo-mode {
  background: color-mix(in srgb, var(--ink) 8%, transparent);
}
.demo-badge {
  border: 1px solid currentColor;
}
.demo-status,
.demo-compare .demo-status {
  font-family: var(--sans);
}
.flow-step.is-active {
  background: var(--accent);
  color: var(--accent-ink);
}
.demo-row.is-active {
  background: var(--surface);
  box-shadow: 0 0 0 2px var(--accent);
}
.timeline::before {
  background: var(--line);
}
.experience-link::before {
  background: var(--bg);
  border-color: var(--accent);
}
.learning-block > h3 {
  border-bottom-color: var(--ink);
}
.stack-tablist button[aria-selected="true"] {
  background: var(--ink);
  color: var(--bg);
}
.back-to-top {
  border-color: transparent;
  box-shadow: var(--lift), var(--shadow);
  bottom: max(16px, env(safe-area-inset-bottom));
  right: max(16px, env(safe-area-inset-right));
}
@media (hover: none) {
  .btn:hover,
  .social:hover,
  .pillar:hover,
  .project-card:hover,
  .experience-link:hover article,
  .demo-row:not(:disabled):hover {
    transform: none;
    box-shadow: none;
  }
}
@media (max-width: 800px) {
  .hero-portrait {
    width: 132px;
    height: 132px;
  }
  .pillars {
    grid-template-columns: 1fr;
  }
}
/* Motion */
@media (prefers-reduced-motion: no-preference) {
  .hero-copy > *,
  .hero-portrait,
  .pillar {
    animation-name: rise;
    animation-duration: 0.9s;
    animation-timing-function: var(--ease);
  }
  .hero-portrait {
    animation-name: pop-in;
  }
  .has-reveal .reveal-on-scroll {
    transform: translateY(24px);
    transition-duration: 0.9s;
    transition-timing-function: var(--ease);
  }
}
@keyframes pop-in {
  from {
    opacity: 0;
    transform: scale(0.88);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.switch {
  min-width: 42px;
  white-space: nowrap;
}