/* ==========================================================================
   Tokens — mismo sistema que el dashboard de auditoría de referencia
   ========================================================================== */
:root {
  /* Color */
  --color-graphite:    #181B1E;
  --color-surface:     #212529;
  --color-surface-2:   #272C31;
  --color-line:        #363C42;
  --color-line-soft:   #2B3036;

  --color-text:        #EAE6DC;
  --color-text-dim:    #9BA1A6;
  --color-text-faint:  #6B7278;

  --color-copper:      #C97C4B;
  --color-copper-dim:  #8A5636;
  --color-verify:      #7DAA7A;
  --color-verify-dim:  #3E5A3C;
  --color-pending:     #D9A441;
  --color-pending-dim: #6E5220;

  /* Type */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'IBM Plex Sans', sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;

  /* Layout */
  --container-width: 1180px;
  --header-height: 76px;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}
body, h1, h2, h3, p, dl, dd, figure { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

body {
  background: var(--color-graphite);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 32px;
}

/* ==========================================================================
   Header / Nav
   ========================================================================== */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(24, 27, 30, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line-soft);
}

.nav {
  height: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.nav__mark-text {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__link {
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-dim);
  transition: color 0.2s ease, background-color 0.2s ease;
}

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

.nav__link.is-active {
  color: var(--color-text);
}

.nav__link--cta:hover {
  color: var(--color-graphite);
  background: #d38f63;
}

.nav__link--login {
  margin-left: 8px;
  padding: 9px 18px;
  color: var(--color-copper);
  background: #F5F0EB;
  font-weight: 600;
}

.nav__link--login:hover {
  color: var(--color-copper);
  background: #323841;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav__toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-text);
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--header-height);
  overflow: hidden;
  background:
    radial-gradient(1100px 640px at 82% 8%, rgba(201, 124, 75, 0.12), transparent 60%),
    radial-gradient(900px 520px at 10% 92%, rgba(125, 170, 122, 0.07), transparent 55%),
    var(--color-graphite);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  mask-image: linear-gradient(to bottom, transparent, black 20%, black 75%, transparent);
}

.hero__grid { position: absolute; inset: 0; }

.hero__content {
  position: relative;
  z-index: 1;
  padding-block: 64px 48px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-copper);
  margin-bottom: 20px;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.6vw, 3.75rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  max-width: 18ch;
  color: var(--color-text);
}

.hero__title-accent {
  color: var(--color-copper);
}

.hero__subtitle {
  margin-top: 28px;
  max-width: 56ch;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: 1.65;
  color: var(--color-text-dim);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  border-radius: 2px;
  transition: transform 0.15s ease, background-color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-copper);
  color: var(--color-graphite);
  font-weight: 600;
}

.btn--primary:hover {
  background: #d38f63;
  transform: translateY(-1px);
}

.btn--ghost {
  border: 1px solid var(--color-line);
  color: var(--color-text);
  background: var(--color-surface);
}

.btn--ghost:hover {
  border-color: var(--color-text-faint);
  transform: translateY(-1px);
}

/* Grid de métricas con líneas finas — reutilizado en Inicio y Caso de estudio */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-line);
}

.metric-grid--narrow {
  max-width: 640px;
}

.metric-grid--wide {
  max-width: 780px;
}

.metric {
  background: var(--color-graphite);
  padding: 20px 24px;
}

.metric:first-child {
  padding-left: 0;
}

.metric__label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.metric__value {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.9rem;
  color: var(--color-text);
}

.metric__value--verified { color: var(--color-verify); }
.metric__value--copper { color: var(--color-copper); }

.metric__unit {
  font-size: 0.95rem;
  color: var(--color-text-faint);
  margin-left: 2px;
}

.hero__scroll-cue {
  position: relative;
  z-index: 1;
  align-self: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
  color: var(--color-text-faint);
}

.hero__scroll-cue-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, var(--color-copper), transparent);
  animation: scrollcue 1.8s ease-in-out infinite;
}

.hero__scroll-cue-text {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

@keyframes scrollcue {
  0%, 100% { transform: scaleY(1); opacity: 0.6; }
  50% { transform: scaleY(0.6); opacity: 1; }
}

/* ==========================================================================
   Generic section placeholder (built out in later sections)
   ========================================================================== */
.section {
  padding-block: 120px;
  border-top: 1px solid var(--color-line-soft);
}

.section__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 16px;
}

.section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--color-text-faint);
}

/* ==========================================================================
   Section head — reusable heading block for built-out sections
   ========================================================================== */
.section-head {
  margin-bottom: 64px;
  max-width: 640px;
}

.section-head__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.section-head__subtitle {
  margin-top: 14px;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--color-text-dim);
}

/* ==========================================================================
   Figure + Compare — patrón "decisión documentada" del dashboard
   ========================================================================== */
.figure {
  display: flex;
  align-items: flex-end;
  gap: 32px;
  flex-wrap: wrap;
}

.figure__value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--color-copper);
}

.figure__label {
  max-width: 340px;
  padding-bottom: 6px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--color-text-dim);
}

.compare {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.compare-card {
  flex: 1;
  min-width: 240px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  padding: 22px 24px;
}

.compare-card--out { border-left: 3px solid var(--color-text-faint); }
.compare-card--in { border-left: 3px solid var(--color-verify); }

.compare-card__label {
  font-size: 13px;
  color: var(--color-text-dim);
  margin-bottom: 10px;
}

.compare-card__value {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.4rem;
  color: var(--color-text);
}

.compare-card__value--strike {
  color: var(--color-text-faint);
  text-decoration: line-through;
  text-decoration-color: var(--color-line);
}

.compare-card__value--win { color: var(--color-verify); }

/* ==========================================================================
   Contacto
   ========================================================================== */
.contacto__body {
  max-width: 56ch;
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  line-height: 1.65;
  color: var(--color-text-dim);
}

.contacto__cta {
  margin-top: 36px;
}

.contacto__location {
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--color-text-faint);
}

/* ==========================================================================
   Checklist — lista de calificación, sin tarjetas
   ========================================================================== */
.checklist {
  margin-top: 8px;
  max-width: 640px;
}

.checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line-soft);
}

.checklist__item:last-child { border-bottom: none; }

.checklist__mark {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 15px;
  color: var(--color-verify);
  line-height: 1.6;
}

.checklist__text {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--color-text);
}

.section-outro {
  margin-top: 56px;
  padding-left: 20px;
  max-width: 56ch;
  border-left: 2px solid var(--color-copper);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.15rem;
  line-height: 1.5;
  color: var(--color-text);
}

/* ==========================================================================
   Video embed — clic para cargar. Sin llamadas a linkedin.com hasta el clic.
   ========================================================================== */
.video-embed {
  max-width: 504px;
  aspect-ratio: 504 / 399;
  position: relative;
  background: var(--color-surface);
}

.video-embed__trigger {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.video-embed__thumb {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-embed__play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-copper);
  transition: transform 0.15s ease, background-color 0.2s ease;
}

.video-embed__trigger:hover .video-embed__play {
  background: #d38f63;
  transform: translate(-50%, -50%) scale(1.06);
}

.video-embed__frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-embed__fallback {
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--color-text-dim);
}

.video-embed__fallback a {
  color: var(--color-copper);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ==========================================================================
   El sistema
   ========================================================================== */
.section-block + .section-block {
  margin-top: 72px;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--color-line);
}

.stack-cell {
  background: var(--color-surface);
  padding: 28px 22px;
}

.stack-cell__n {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-faint);
  margin-bottom: 14px;
}

.stack-cell__title {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}

.stack-cell__desc {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--color-text-dim);
}

.levels {
  border-left: 1px solid var(--color-line);
  margin-top: 8px;
}

.level {
  position: relative;
  padding: 24px 0 24px 32px;
  border-bottom: 1px solid var(--color-line-soft);
}

.level:last-child { border-bottom: none; }

.level__dot {
  position: absolute;
  left: -5px;
  top: 28px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-verify);
}

.level__dot--pending { background: var(--color-pending); }

.level__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.level__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-text);
}

.level__tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 3px 10px;
  border: 1px solid var(--color-verify-dim);
  color: var(--color-verify);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.level__tag--pending {
  border-color: var(--color-pending-dim);
  color: var(--color-pending);
}

.level__body {
  margin-top: 10px;
  max-width: 640px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--color-text-dim);
}

/* ==========================================================================
   Quote card — sección Validación
   ========================================================================== */
.quote-card {
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-copper);
  background: var(--color-surface);
  padding: 28px 26px;
  margin-bottom: 16px;
}

.quote-card:last-child { margin-bottom: 0; }

.quote-card__body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  max-width: 680px;
}

.quote-card__foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--color-line-soft);
}

.quote-card__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  color: var(--color-text);
}

.quote-card__role {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 12.5px;
  color: var(--color-text-dim);
  margin-top: 2px;
}

.quote-card__link {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-copper);
  text-decoration: none;
  white-space: nowrap;
}

.quote-card__link:hover { text-decoration: underline; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 860px) {
  .nav__toggle { display: flex; }

  .nav__menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-line-soft);
    padding: 8px 16px 16px;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  }

  .nav__menu.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__link { width: 100%; padding: 14px 12px; }
  .nav__link--cta { margin-left: 0; margin-top: 8px; justify-content: center; }

  .metric-grid--narrow { grid-template-columns: 1fr; max-width: 320px; }
  .metric-grid--narrow .metric { padding: 16px 0; border-bottom: 1px solid var(--color-line); }
  .metric-grid--wide { grid-template-columns: 1fr; max-width: 320px; }
  .metric-grid--wide .metric { padding: 16px 0; border-bottom: 1px solid var(--color-line); }

  .stack-grid { grid-template-columns: repeat(2, 1fr); }
  .stack-cell:last-child { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  .hero__actions { flex-direction: column; align-items: stretch; }

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

  .level__head { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* ============ TIMELINE — ciclo de vida continuo ============ */
.timeline__intro {
  font-family: var(--font-body);
  color: var(--color-text-dim);
  max-width: 62ch;
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-top: 0.75rem;
}

.timeline__track {
  position: absolute;
  top: 5px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, var(--color-copper), var(--color-verify));
  opacity: 0.55;
}

.timeline__item {
  position: relative;
  padding-top: 1.5rem;
}

.timeline__dot {
  position: absolute;
  top: 0;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--color-copper);
  border: 2px solid var(--color-graphite);
  box-shadow: 0 0 0 1px var(--color-copper);
}

.timeline__phase {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin-bottom: 0.35rem;
}

.timeline__desc {
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-faint);
}

@media (max-width: 720px) {
  .timeline {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .timeline__track {
    top: 0;
    bottom: 0;
    left: 5px;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(to bottom, var(--color-copper), var(--color-verify));
  }
  .timeline__item {
    padding-top: 0;
    padding-left: 1.75rem;
  }
  .timeline__dot {
    top: 3px;
    left: 0;
  }
}
/* ── Sección Descargas ─────────────────────────────────────────────────────── */

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6, 2rem);
  margin-block: var(--space-6, 2rem);
}

.download-card {
  background: var(--color-surface, #1a1a1a);
  border: 1px solid rgba(201, 124, 75, 0.2);
  border-radius: 8px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color 0.2s;
}

.download-card:hover {
  border-color: var(--color-copper, #C97C4B);
}

.download-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.download-card__tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--color-copper, #C97C4B);
  background: rgba(201, 124, 75, 0.1);
  padding: 0.2em 0.6em;
  border-radius: 4px;
  letter-spacing: 0.05em;
}

.download-card__price {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text, #e8e2da);
}

.download-card__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-text, #e8e2da);
  margin: 0;
}

.download-card__desc {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-muted, #9a9088);
  margin: 0;
}

.download-card__includes {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.download-card__includes li {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.85rem;
  color: var(--color-text-muted, #9a9088);
  padding-left: 1.2rem;
  position: relative;
}

.download-card__includes li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-copper, #C97C4B);
}

.download-card__btn {
  margin-top: auto;
  text-align: center;
}