/* ============================================================
   luizboeno.tech — design system
   Estetica editorial-tecnica. Escuro por padrao, claro no toggle.
   ============================================================ */

/* ---------- Fontes auto-hospedadas ---------- */
@font-face {
  font-family: 'Space Grotesk';
  src: url('../fonts/spacegrotesk-var-latin.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-var-latin.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jetbrainsmono-var-latin.woff2') format('woff2');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  /* tema escuro (padrao) */
  --bg: #0a0a0b;
  --bg-elevated: #0f0f11;
  --surface: #131316;
  --surface-2: #191920;
  --border: #26262c;
  --border-strong: #383840;
  --fg: #f4f4f5;
  --fg-muted: #a5a5b0;
  --fg-subtle: #85858f;
  --accent: #e8a33d;
  --accent-text: #f0b45c;
  --accent-soft: rgba(232, 163, 61, 0.12);
  --accent-line: rgba(232, 163, 61, 0.35);
  --live: #4ade80;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.6), 0 12px 32px rgba(0, 0, 0, 0.4);
  --grid-line: rgba(255, 255, 255, 0.028);
  --mx-glow: rgba(225, 29, 72, 0.17);

  --font-display: 'Space Grotesk', ui-sans-serif, system-ui, sans-serif;
  --font-body: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

  --wrap: 1120px;
  --prose: 68ch;
  --radius: 10px;
  --radius-sm: 6px;
  --ease: cubic-bezier(0.32, 0.72, 0, 1);
}

[data-theme='light'] {
  --bg: #fbfaf7;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-2: #f4f2ed;
  --border: #e3dfd6;
  --border-strong: #c6c1b5;
  --fg: #161512;
  --fg-muted: #55524a;
  --fg-subtle: #6b675f;
  --accent: #9c6109;
  --accent-text: #8a5600;
  --accent-soft: rgba(156, 97, 9, 0.1);
  --accent-line: rgba(156, 97, 9, 0.32);
  --live: #15803d;
  --shadow: 0 1px 2px rgba(30, 25, 15, 0.06), 0 12px 28px rgba(30, 25, 15, 0.07);
  --grid-line: rgba(0, 0, 0, 0.032);
  --mx-glow: rgba(225, 29, 72, 0.1);
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img,
svg,
picture {
  display: block;
  max-width: 100%;
  height: auto;
}
ul,
ol {
  list-style: none;
  padding: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

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

::selection {
  background: var(--accent);
  color: #0a0a0b;
}

/* ---------- Tipografia ---------- */
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.022em;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-subtle);
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--accent);
  flex: none;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.lead {
  font-size: 1.0625rem;
  color: var(--fg-muted);
  max-width: var(--prose);
}

/* ---------- Layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  padding-block: clamp(64px, 9vw, 112px);
}
.section + .section {
  border-top: 1px solid var(--border);
}

.section-head {
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.25rem);
  margin-top: 14px;
}
.section-head p {
  margin-top: 12px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  background: var(--accent);
  color: #0a0a0b;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: top 0.2s var(--ease);
}
.skip-link:focus-visible {
  top: 16px;
}

/* ---------- Cabecalho ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 68px;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 9px;
  margin-right: auto;
}
.brand .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}
.brand span {
  color: var(--fg-subtle);
  font-weight: 500;
}

.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
}
.nav-links a {
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--fg-muted);
  transition: color 0.15s, background-color 0.15s;
}
.nav-links a:hover {
  color: var(--fg);
  background: var(--surface-2);
}

.nav-tools {
  display: flex;
  gap: 6px;
  align-items: center;
}

.icon-btn {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--fg-muted);
  transition: color 0.15s, border-color 0.15s, background-color 0.15s;
}
.icon-btn:hover {
  color: var(--fg);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.icon-btn svg {
  width: 16px;
  height: 16px;
}

.lang-toggle {
  height: 34px;
  padding-inline: 11px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  transition: color 0.15s, border-color 0.15s, background-color 0.15s;
}
.lang-toggle:hover {
  color: var(--fg);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.lang-toggle .on {
  color: var(--accent-text);
}
.lang-toggle .sep {
  opacity: 0.4;
  margin-inline: 3px;
}

.theme-toggle .moon {
  display: none;
}
[data-theme='light'] .theme-toggle .moon {
  display: block;
}
[data-theme='light'] .theme-toggle .sun {
  display: none;
}

.nav-burger {
  display: none;
}

/* ---------- Botoes ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 19px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 550;
  border: 1px solid transparent;
  transition: transform 0.15s var(--ease), background-color 0.15s, border-color 0.15s,
    color 0.15s;
  white-space: nowrap;
}
.btn svg {
  width: 15px;
  height: 15px;
  flex: none;
}
.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--accent);
  color: #0a0a0b;
  font-weight: 600;
}
.btn-primary:hover {
  background: var(--accent-text);
}
[data-theme='light'] .btn-primary {
  color: #fff;
}

.btn-ghost {
  border-color: var(--border);
  color: var(--fg-muted);
}
.btn-ghost:hover {
  border-color: var(--border-strong);
  color: var(--fg);
  background: var(--surface);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-block: clamp(72px, 12vw, 132px) clamp(56px, 8vw, 96px);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 78%);
  pointer-events: none;
}
.hero .wrap {
  position: relative;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 13px 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
  margin-bottom: 30px;
}
.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--live);
  flex: none;
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--live) 55%, transparent);
  }
  70% {
    box-shadow: 0 0 0 7px transparent;
  }
  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}

.hero h1 {
  font-size: clamp(2.6rem, 7.2vw, 4.4rem);
  font-weight: 700;
  letter-spacing: -0.038em;
  margin-bottom: 22px;
}
.hero h1 em {
  font-style: normal;
  display: block;
  color: var(--fg-subtle);
  font-size: 0.42em;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-top: 16px;
  font-family: var(--font-body);
  line-height: 1.5;
}
.hero .lead {
  font-size: 1.125rem;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 44px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 32px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-subtle);
}
.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.hero-meta svg {
  width: 13px;
  height: 13px;
  color: var(--accent);
}

/* ---------- Projetos ---------- */
.projects {
  display: grid;
  gap: 20px;
}

.project {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  transition: border-color 0.25s var(--ease);
}
.project:hover {
  border-color: var(--border-strong);
}

.project-body {
  padding: clamp(26px, 3.6vw, 42px);
  display: flex;
  flex-direction: column;
}

.project-tagline {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 14px;
}

.project-body h3 {
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  margin-bottom: 12px;
}
.project-body > p {
  color: var(--fg-muted);
  font-size: 0.9375rem;
}

.project-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin: 26px 0;
}
.project-stats div {
  background: var(--surface);
  padding: 13px 12px;
}
.project-stats b {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}
.project-stats small {
  display: block;
  font-size: 0.6875rem;
  color: var(--fg-subtle);
  margin-top: 3px;
  line-height: 1.35;
}

.stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 26px;
}
.stack li {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  padding: 4px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--fg-muted);
  background: var(--bg-elevated);
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
}

.project-visual {
  position: relative;
  display: grid;
  place-items: center;
  padding: 40px;
  background: radial-gradient(circle at 50% 42%, var(--mx-glow), transparent 62%),
    var(--bg-elevated);
  border-left: 1px solid var(--border);
  min-height: 260px;
}
.project-visual img {
  width: min(100%, 300px);
  filter: drop-shadow(0 16px 40px rgba(0, 0, 0, 0.5));
  transition: transform 0.4s var(--ease);
}
.project:hover .project-visual img {
  transform: scale(1.035);
}

.project-visual.mono-visual {
  background: var(--bg-elevated);
}
.project-visual.mono-visual svg {
  width: min(100%, 190px);
  color: var(--fg-subtle);
  opacity: 0.5;
}

/* projeto secundario, formato compacto */
.project.compact {
  grid-template-columns: 1fr 300px;
}
.project.compact .project-body {
  padding: clamp(24px, 3vw, 32px);
}
.project.compact h3 {
  font-size: 1.25rem;
}
.project.compact .project-visual {
  min-height: 0;
}

.projects-more {
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--fg-muted);
}
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-text);
  font-weight: 550;
  border-bottom: 1px solid var(--accent-line);
  padding-bottom: 1px;
  transition: border-color 0.15s;
}
.link-arrow:hover {
  border-bottom-color: var(--accent);
}
.link-arrow svg {
  width: 13px;
  height: 13px;
}

/* ---------- Sobre ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
.about-text p {
  color: var(--fg-muted);
  max-width: var(--prose);
}
.about-text p + p {
  margin-top: 18px;
}
.about-text strong {
  color: var(--fg);
  font-weight: 600;
}

.facts {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.facts li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 14px 18px;
  font-size: 0.875rem;
}
.facts li + li {
  border-top: 1px solid var(--border);
}
.facts .k {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  flex: none;
}
.facts .v {
  text-align: right;
  color: var(--fg);
}

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  padding-left: 30px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--border);
}

.job {
  position: relative;
  padding-bottom: 44px;
}
.job:last-child {
  padding-bottom: 0;
}
.job::before {
  content: '';
  position: absolute;
  left: -30px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border-strong);
}
.job.current::before {
  border-color: var(--accent);
  background: var(--accent);
}

.job-date {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.badge-now {
  color: var(--live);
  border: 1px solid color-mix(in srgb, var(--live) 35%, transparent);
  background: color-mix(in srgb, var(--live) 10%, transparent);
  padding: 1px 7px;
  border-radius: 3px;
  letter-spacing: 0.08em;
}

.job h3 {
  font-size: 1.125rem;
  margin-bottom: 3px;
}
.job .org {
  color: var(--accent-text);
  font-size: 0.875rem;
  margin-bottom: 14px;
}
.job ul {
  display: grid;
  gap: 7px;
  max-width: var(--prose);
}
.job ul li {
  position: relative;
  padding-left: 17px;
  font-size: 0.9375rem;
  color: var(--fg-muted);
}
.job ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 1px;
  background: var(--border-strong);
}
.job ul li strong {
  color: var(--fg);
  font-weight: 550;
}

/* ---------- Formacao ---------- */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}
.col-title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.edu-list {
  display: grid;
  gap: 12px;
}
.edu-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  padding: 18px 20px;
}
.edu-card h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}
.edu-card .inst {
  font-size: 0.875rem;
  color: var(--accent-text);
}
.edu-card .when {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--fg-subtle);
  margin-top: 8px;
  display: block;
}
.edu-card p {
  font-size: 0.875rem;
  color: var(--fg-muted);
  margin-top: 10px;
}

.courses {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.courses li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 12px 18px;
  font-size: 0.875rem;
}
.courses li + li {
  border-top: 1px solid var(--border);
}
.courses .name {
  color: var(--fg);
  font-weight: 500;
  display: block;
}
.courses .inst {
  color: var(--fg-subtle);
  font-size: 0.8125rem;
}
.courses .when {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--fg-subtle);
  flex: none;
}

/* ---------- Habilidades ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 16px;
}
.skill-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 24px;
  transition: border-color 0.2s;
}
.skill-card:hover {
  border-color: var(--border-strong);
}
.skill-card h3 {
  font-size: 0.9375rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.skill-card h3 svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex: none;
}
.skill-card .stack {
  margin-bottom: 0;
}
.skill-card ul.plain {
  display: grid;
  gap: 7px;
}
.skill-card ul.plain li {
  font-size: 0.875rem;
  color: var(--fg-muted);
  padding-left: 15px;
  position: relative;
}
.skill-card ul.plain li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--border-strong);
}

.langs {
  display: grid;
  gap: 16px;
}
.lang-row {
  display: grid;
  gap: 7px;
}
.lang-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.875rem;
}
.lang-top .lvl {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--fg-subtle);
}
.bar {
  height: 3px;
  background: var(--surface-2);
  border-radius: 2px;
  overflow: hidden;
}
.bar i {
  display: block;
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.9s var(--ease);
}
.is-visible .bar i {
  transform: scaleX(1);
}

/* ---------- Contato / rodape ---------- */
.contact {
  background: var(--bg-elevated);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}
.contact h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 14px;
}

.contact-links {
  display: grid;
  gap: 10px;
}
.contact-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color 0.15s, transform 0.15s var(--ease);
}
.contact-link:hover {
  border-color: var(--accent-line);
  transform: translateX(3px);
}
.contact-link svg.ico {
  width: 17px;
  height: 17px;
  color: var(--accent);
  flex: none;
}
.contact-link .txt {
  display: grid;
  gap: 1px;
  min-width: 0;
}
.contact-link .k {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-subtle);
}
.contact-link .v {
  font-size: 0.9375rem;
  overflow-wrap: anywhere;
}
.contact-link .arr {
  margin-left: auto;
  width: 14px;
  height: 14px;
  color: var(--fg-subtle);
  flex: none;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 30px;
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--fg-subtle);
}
.footer-row a:hover {
  color: var(--fg);
}

/* ---------- Case study ---------- */
.case-hero {
  padding-block: clamp(52px, 8vw, 88px) clamp(40px, 5vw, 64px);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  margin-bottom: 34px;
  transition: color 0.15s;
}
.back-link:hover {
  color: var(--accent-text);
}
.back-link svg {
  width: 13px;
  height: 13px;
}

.case-hero h1 {
  font-size: clamp(2.1rem, 5.4vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.034em;
  margin-bottom: 18px;
}
.case-hero .lead {
  font-size: 1.0625rem;
  margin-bottom: 32px;
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 36px;
}
.case-meta div {
  background: var(--surface);
  padding: 15px 18px;
}
.case-meta .k {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  margin-bottom: 5px;
}
.case-meta .v {
  font-size: 0.9375rem;
  font-weight: 500;
}
.case-meta .v.live {
  color: var(--live);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.case-cover {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: radial-gradient(circle at 50% 40%, var(--mx-glow), transparent 60%),
    var(--bg-elevated);
  padding: clamp(36px, 6vw, 64px);
  display: grid;
  place-items: center;
}
.case-cover img {
  width: min(100%, 400px);
  filter: drop-shadow(0 20px 50px rgba(0, 0, 0, 0.55));
}

.prose {
  max-width: var(--prose);
}
.prose p {
  color: var(--fg-muted);
}
.prose p + p {
  margin-top: 16px;
}
.prose strong {
  color: var(--fg);
  font-weight: 600;
}
.prose code {
  font-family: var(--font-mono);
  font-size: 0.8125em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--fg);
}

.pain-list {
  display: grid;
  gap: 10px;
  margin-top: 26px;
  max-width: var(--prose);
}
.pain-list li {
  display: flex;
  gap: 13px;
  padding: 14px 17px;
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent-line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 0.9375rem;
  color: var(--fg-muted);
}
.pain-list .n {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent-text);
  flex: none;
  padding-top: 3px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 36px;
}
.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 26px;
}
.panel h3 {
  font-size: 1rem;
  margin-bottom: 5px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel h3 svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex: none;
}
.panel .count {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--fg-subtle);
  margin-bottom: 18px;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.chips li {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elevated);
  color: var(--fg-muted);
}

.diagram {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: clamp(20px, 4vw, 40px);
  margin-top: 34px;
  overflow-x: auto;
}
.diagram svg {
  width: 100%;
  min-width: 640px;
  height: auto;
}
.d-box {
  fill: var(--bg-elevated);
  stroke: var(--border-strong);
  stroke-width: 1;
}
.d-box-accent {
  fill: var(--accent-soft);
  stroke: var(--accent-line);
  stroke-width: 1;
}
.d-title {
  fill: var(--fg);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
}
.d-text {
  fill: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 10px;
}
.d-label {
  fill: var(--fg-subtle);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}
.d-line {
  stroke: var(--border-strong);
  stroke-width: 1;
  fill: none;
}
.d-line-accent {
  stroke: var(--accent);
  stroke-width: 1.4;
  fill: none;
}
.d-arrow {
  fill: var(--border-strong);
}
.d-arrow-accent {
  fill: var(--accent);
}

.decisions {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}
.decision {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 24px 26px;
}
.decision h3 {
  font-size: 1rem;
  margin-bottom: 10px;
}
.decision p {
  font-size: 0.9375rem;
  color: var(--fg-muted);
}
.decision .tagline {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 9px;
}

.numbers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 34px;
}
.numbers div {
  background: var(--surface);
  padding: 24px 20px;
}
.numbers b {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.numbers small {
  display: block;
  font-size: 0.75rem;
  color: var(--fg-subtle);
  margin-top: 6px;
}

.note {
  display: flex;
  gap: 13px;
  margin-top: 30px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  font-size: 0.875rem;
  color: var(--fg-muted);
  max-width: var(--prose);
}
.note svg {
  width: 16px;
  height: 16px;
  color: var(--fg-subtle);
  flex: none;
  margin-top: 3px;
}

.learnings {
  display: grid;
  gap: 12px;
  margin-top: 30px;
  max-width: var(--prose);
}
.learnings li {
  display: flex;
  gap: 13px;
  font-size: 0.9375rem;
  color: var(--fg-muted);
}
.learnings svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex: none;
  margin-top: 4px;
}

.case-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
  padding-top: 34px;
  border-top: 1px solid var(--border);
}

/* ---------- Pagina 404 ---------- */
.center-page {
  min-height: 72vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding-block: 80px;
}
.center-page .code {
  font-family: var(--font-mono);
  font-size: clamp(3.5rem, 12vw, 6rem);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.04em;
  line-height: 1;
}
.center-page h1 {
  font-size: clamp(1.4rem, 4vw, 1.9rem);
  margin: 20px 0 12px;
}
.center-page p {
  color: var(--fg-muted);
  margin-bottom: 28px;
}

/* ---------- Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Responsivo ---------- */
@media (max-width: 900px) {
  .project,
  .project.compact {
    grid-template-columns: 1fr;
  }
  .project-visual {
    border-left: none;
    border-top: 1px solid var(--border);
    order: -1;
    min-height: 200px;
    padding: 32px;
  }
  .project-visual img {
    width: min(100%, 220px);
  }
  .about-grid,
  .edu-grid,
  .contact-grid,
  .split {
    grid-template-columns: 1fr;
  }
  .project-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .nav-links {
    position: fixed;
    inset: 68px 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    padding: 8px 16px 18px;
    transform: translateY(-125%);
    transition: transform 0.3s var(--ease);
    box-shadow: var(--shadow);
  }
  .nav-links.is-open {
    transform: none;
  }
  .nav-links a {
    padding: 13px 10px;
    font-size: 0.9375rem;
    border-radius: 0;
  }
  .nav-links li + li a {
    border-top: 1px solid var(--border);
  }
  .nav-burger {
    display: grid;
  }
  .hero h1 {
    font-size: clamp(2.1rem, 10vw, 2.9rem);
  }
  .case-meta {
    grid-template-columns: 1fr 1fr;
  }
  .footer-row {
    justify-content: flex-start;
  }
}

@media (max-width: 460px) {
  .project-stats {
    grid-template-columns: 1fr;
  }
  .hero-actions .btn {
    flex: 1 1 100%;
    justify-content: center;
  }
  .courses li {
    flex-direction: column;
    gap: 4px;
  }
}

@media print {
  .site-header,
  .nav-tools,
  .hero-actions,
  .case-cta,
  .project-actions {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  .bar i {
    transform: scaleX(1);
  }
}