/* ============================================================
   Portfolio v4 — sistema visual compartido (Engineer + Servicios)
   Dark neutro editorial. Un acento (brass/amber). Sin WebGL/GSAP.
   ============================================================ */

:root {
  /* Color */
  --bg: #0b0b0c;
  --bg-raised: #151517;
  --bg-raised-2: #1b1b1e;
  --border: #26262a;
  --border-soft: #1d1d20;
  --text: #ececec;
  --text-dim: #8f8f95;
  --text-faint: #7e7e82;
  --accent: #cf9a52;
  --accent-strong: #e8b06e;
  --accent-soft: rgba(207, 154, 82, 0.14);
  --accent-soft-border: rgba(207, 154, 82, 0.32);

  /* Status colors (manifest pills) — desaturated, not traffic-light neon */
  --status-live-dot: #6fae7c;
  --status-building-dot: var(--accent);
  --status-archived-dot: var(--text-faint);

  /* Type */
  --font-display: "Space Grotesk", "Inter", -apple-system, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;

  /* Scale */
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.875rem;
  --fs-2xl: 2.5rem;
  --fs-3xl: 3.5rem;

  /* Layout */
  --content-max: 760px;
  --page-pad: 1.5rem;
  --radius: 3px;
}

@media (prefers-color-scheme: light) {
  /* Site is intentionally single-theme (dark). Force dark regardless of OS
     preference — this is an editorial choice, not an oversight. */
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

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

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

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding-left: var(--page-pad);
  padding-right: var(--page-pad);
}

/* ---------- Nav ---------- */

.site-nav {
  border-bottom: 1px solid var(--border-soft);
  position: sticky;
  top: 0;
  background: rgba(11, 11, 12, 0.86);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.site-nav .container {
  max-width: 920px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 1rem;
}

.site-nav__brand {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--text);
  white-space: nowrap;
}

.site-nav__brand span {
  color: var(--accent);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__links a {
  text-decoration: none;
  font-size: var(--fs-sm);
  color: var(--text-dim);
  transition: color 0.15s ease;
}

.site-nav__links a:hover,
.site-nav__links a:focus-visible {
  color: var(--text);
}

.site-nav__links a.is-cross {
  color: var(--accent);
}

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
}

.lang-toggle button {
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 0.35rem 0.6rem;
  cursor: pointer;
  font: inherit;
}

.lang-toggle button[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.4rem 0.6rem;
  font: inherit;
  cursor: pointer;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 500;
  text-decoration: none;
  padding: 0.65rem 1.1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--text);
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
  cursor: pointer;
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--text-dim);
}

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #17130c;
  font-weight: 600;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.btn--ghost {
  background: none;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- Hero ---------- */

.hero {
  padding: 4.5rem 0 3rem;
  border-bottom: 1px solid var(--border-soft);
}

.hero h1 {
  font-size: var(--fs-3xl);
  line-height: 1.08;
  max-width: 14ch;
}

.hero__lede {
  margin-top: 1.25rem;
  font-size: var(--fs-md);
  color: var(--text-dim);
  max-width: 46ch;
}

.status-line {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--status-live-dot);
  box-shadow: 0 0 0 3px rgba(111, 174, 124, 0.15);
}

.hero .btn-row {
  margin-top: 2rem;
}

/* ---------- Sections ---------- */

.section {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border-soft);
}

.section:last-of-type {
  border-bottom: none;
}

.section__head {
  margin-bottom: 2rem;
}

.section__head h2 {
  font-size: var(--fs-xl);
  margin-top: 0.5rem;
}

/* ---------- Project / manifest card ---------- */

.manifest {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-raised);
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.manifest__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised-2);
  font-family: var(--font-mono);
}

.manifest__id {
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}

.manifest__status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.manifest__status .status-dot {
  background: var(--status-live-dot);
  box-shadow: none;
}

.manifest__status[data-status="building"] .status-dot {
  background: var(--status-building-dot);
}

.manifest__status[data-status="archived"] .status-dot {
  background: var(--status-archived-dot);
}

.manifest__body {
  padding: 1.5rem 1.25rem;
}

.manifest__fields {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 1rem;
  font-size: var(--fs-sm);
  margin-bottom: 1.25rem;
}

.manifest__fields dt {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  white-space: nowrap;
  padding-top: 0.15rem;
}

.manifest__fields dd {
  margin: 0;
  color: var(--text-dim);
}

.manifest__prose {
  color: var(--text-dim);
  max-width: 60ch;
}

.manifest__prose p {
  margin: 0 0 0.75rem;
}

.manifest__prose p:last-child {
  margin-bottom: 0;
}

.manifest__links {
  margin-top: 1.25rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.manifest__links a {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--accent);
  border-bottom: 1px solid transparent;
}

.manifest__links a:hover,
.manifest__links a:focus-visible {
  border-bottom-color: var(--accent);
}

/* ---------- Practice list (Engineering practices section) ---------- */

.practice-item {
  margin-bottom: 1.5rem;
}

.practice-item:last-child {
  margin-bottom: 0;
}

.practice-item__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.4rem;
}

.practice-item__body {
  color: var(--text-dim);
  max-width: 60ch;
  margin: 0;
}

/* ---------- Demo section ---------- */

.demo-video-slot {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: var(--bg-raised);
  padding: 3rem 1.5rem;
  text-align: center;
  margin-bottom: 1.5rem;
}

.demo-video-slot__play {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: var(--fs-md);
  margin-bottom: 1rem;
}

.demo-video-slot__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 0;
}

/* ---------- Process steps ---------- */

.process-list {
  display: flex;
  flex-direction: column;
}

.process-step {
  display: flex;
  gap: 1.25rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-soft);
}

.process-step:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.process-step__num {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--accent);
  flex-shrink: 0;
  padding-top: 0.1rem;
}

.process-step__label {
  margin: 0 0 0.35rem;
  font-weight: 600;
}

.process-step__body {
  margin: 0;
  color: var(--text-dim);
  max-width: 55ch;
}

/* ---------- Credibility note ---------- */

.credibility-note {
  color: var(--text-dim);
  max-width: 60ch;
  margin: 0 0 2rem;
  padding: 1rem 1.25rem;
  border-left: 2px solid var(--accent-soft-border);
  background: var(--accent-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ---------- FAQ ---------- */

.faq-list {
  border-top: 1px solid var(--border-soft);
}

.faq-list details {
  border-bottom: 1px solid var(--border-soft);
  padding: 1rem 0;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 500;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--text-dim);
  flex-shrink: 0;
}

.faq-list details[open] summary::after {
  content: "\2013";
}

.faq-list p {
  margin: 0.75rem 0 0;
  color: var(--text-dim);
  max-width: 60ch;
}

/* ---------- Final CTA ---------- */

.final-cta {
  padding: 4rem 0 4.5rem;
  text-align: center;
  border-top: 1px solid var(--border-soft);
}

.final-cta h2 {
  font-size: var(--fs-2xl);
}

.final-cta__lede {
  margin: 1rem auto 0;
  color: var(--text-dim);
  max-width: 42ch;
}

.final-cta .btn-row {
  justify-content: center;
  margin-top: 2rem;
}

.final-cta__note {
  display: block;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 2.5rem 0 3rem;
}

.site-footer .container {
  max-width: 920px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-footer__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--fs-sm);
  color: var(--text-dim);
}

.site-footer__links a {
  text-decoration: none;
  color: inherit;
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--text);
}

.site-footer__meta {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

/* ---------- Header container width for nav/footer vs page content ---------- */

.site-nav .container,
.site-footer .container {
  max-width: 920px;
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  :root {
    --fs-3xl: 2.5rem;
    --fs-2xl: 2rem;
    --page-pad: 1.25rem;
  }

  .site-nav__links {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border-soft);
    padding: 0.5rem var(--page-pad) 1rem;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
  }

  .site-nav__links[data-open="true"] {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .site-nav__links a {
    padding: 0.6rem 0;
    width: 100%;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .manifest__fields {
    grid-template-columns: 1fr;
  }

  .manifest__fields dt {
    padding-top: 0.5rem;
  }

  .site-footer .container {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ============================================================
   Cookie consent banner + modal
   ============================================================ */

.cc-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  padding: 1rem var(--page-pad);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.35);
}

.cc-banner__text {
  margin: 0;
  max-width: 620px;
  font-size: var(--fs-sm);
  color: var(--text-dim);
  line-height: 1.5;
}

.cc-banner__actions {
  display: flex;
  gap: 0.6rem;
  flex-shrink: 0;
}

.cc-btn {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius);
  cursor: pointer;
  letter-spacing: 0.01em;
}

.cc-btn--ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
}

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

.cc-btn--solid {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: var(--bg);
  font-weight: 600;
}

.cc-btn--solid:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.cc-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.6);
}

.cc-modal__panel {
  width: 100%;
  max-width: 440px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.cc-modal__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  color: var(--text);
}

.cc-modal__body {
  margin: 0 0 1.25rem;
  font-size: var(--fs-sm);
  color: var(--text-dim);
  line-height: 1.5;
}

.cc-modal__rows {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-bottom: 1.5rem;
}

.cc-modal__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--border-soft);
}

.cc-modal__row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.cc-modal__row strong {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text);
}

.cc-modal__row p {
  margin: 0.15rem 0 0;
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

.cc-modal__row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .cc-banner {
    flex-direction: column;
    align-items: flex-start;
  }

  .cc-banner__actions {
    width: 100%;
  }

  .cc-btn {
    flex: 1;
    text-align: center;
  }
}