/* =========================================================================
   IntelSur · Landing pública
   Depende de /static/styles.css (tokens :root ya definidos ahí)
   Paleta: --blue #2563eb  ·  --text #0f172a  ·  --surface #ffffff
   ========================================================================= */

.landing-body {
  background:
    radial-gradient(rgba(37, 99, 235, .06) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(180deg, #ffffff 0%, #fafbff 100%);
  min-height: 100vh;
  color: var(--text);
}

/* =========================================================================
   Nav
   ========================================================================= */

.landing-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  position: sticky;
  top: 0;
  z-index: 30;
}
.landing-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.landing-brand-text {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.landing-brand-text em {
  font-style: normal;
  color: var(--text-3);
  font-weight: 500;
}
.landing-nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}
.landing-nav-links a {
  color: var(--text-3);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color .12s;
}
.landing-nav-links a:hover { color: var(--text); }
.landing-nav-links a.btn { padding: 8px 16px; }

/* =========================================================================
   Buttons (landing-specific — no toca las globales)
   ========================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all .14s ease;
  box-shadow: var(--shadow-sm);
}
.btn:hover {
  background: var(--surface-2);
  border-color: var(--text-3);
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(37, 99, 235, .15), inset 0 1px 0 rgba(255, 255, 255, .15);
}
.btn-primary:hover {
  background: var(--blue-2);
  border-color: var(--blue-2);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(37, 99, 235, .28), inset 0 1px 0 rgba(255, 255, 255, .15);
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover {
  background: var(--blue-soft);
  border-color: var(--blue);
  color: var(--blue);
}
.btn-lg {
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
}

/* =========================================================================
   Kicker (badge tipo etiqueta)
   ========================================================================= */

.landing-kicker {
  display: inline-block;
  padding: 4px 10px;
  background: var(--blue-soft);
  color: var(--blue);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

/* =========================================================================
   Section head
   ========================================================================= */

.section-head {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}
.section-head h2 {
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.028em;
  color: var(--text);
  margin: 0;
  font-weight: 700;
}

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

.hero {
  padding: 72px 32px 88px;
  max-width: 1360px;
  margin: 0 auto;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero-copy h1 {
  font-size: 52px;
  line-height: 1.06;
  letter-spacing: -0.036em;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 20px;
}
.hero-copy h1 em {
  font-style: normal;
  color: var(--blue);
  position: relative;
  white-space: nowrap;
}
.hero-copy h1 em::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 4px;
  height: 8px;
  background: var(--blue-soft);
  z-index: -1;
  border-radius: 2px;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.62;
  margin: 0 0 32px;
  max-width: 560px;
}
.hero-sub b { color: var(--text); font-weight: 600; }

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero-meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-3);
  font-size: 13.5px;
}
.hero-meta b { color: var(--text); font-weight: 600; }
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pos);
  box-shadow: 0 0 0 0 rgba(22, 163, 74, .5);
  animation: landing-pulse 1.8s infinite;
}
@keyframes landing-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(22, 163, 74, .55); }
  70%  { box-shadow: 0 0 0 8px rgba(22, 163, 74, 0); }
  100% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0); }
}

/* Hero preview mock */
.hero-preview { position: relative; }
.preview-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 16px 44px rgba(15, 23, 42, .09), 0 2px 8px rgba(15, 23, 42, .04);
  transform: rotate(-1deg);
  transition: transform .35s cubic-bezier(.2, .8, .2, 1);
}
.preview-card:hover { transform: rotate(0); }
.preview-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.preview-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  background: #dcfce7;
  color: var(--pos);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  border: 1px solid rgba(22, 163, 74, .2);
}
.preview-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--pos);
  animation: landing-pulse 1.6s infinite;
}
.preview-title {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
}
.preview-kpis {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}
.preview-kpi {
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  position: relative;
}
.preview-kpi::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--text-mute);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}
.preview-kpi.accent::before { background: var(--blue); }
.preview-kpi.warm::before   { background: #f59e0b; }
.preview-label {
  color: var(--text-3);
  font-size: 11px;
  font-weight: 500;
  margin-bottom: 4px;
}
.preview-value {
  font-weight: 700;
  font-size: 24px;
  color: var(--text);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}
.preview-kpi.accent .preview-value { color: var(--blue); }
.preview-kpi.warm .preview-value   { color: #b45309; }
.preview-sub {
  color: var(--text-3);
  font-size: 11px;
  margin-top: 4px;
}

.preview-mini-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.preview-list-title {
  font-size: 11px;
  color: var(--text-3);
  font-weight: 500;
  margin-bottom: 2px;
}
.preview-list-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-2);
  padding: 4px 0;
}
.preview-tag-mini {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
}
.preview-tag-mini.t-pub { background: #fef3c7; color: #b45309; }
.preview-tag-mini.t-edi { background: var(--blue-soft); color: var(--blue); }
.preview-tag-mini.t-oyt { background: #f1f5f9; color: var(--text-3); }
.preview-list-brand {
  flex: 1;
  color: var(--text);
  font-weight: 600;
}
.preview-list-time {
  color: var(--text-3);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

/* =========================================================================
   Features
   ========================================================================= */

.features {
  padding: 64px 32px;
  max-width: 1360px;
  margin: 0 auto;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feature {
  padding: 24px 22px 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  position: relative;
  transition: border-color .12s, transform .12s, box-shadow .18s;
  overflow: hidden;
}
.feature:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(15, 23, 42, .06);
}
.feature::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.feature:hover::before { transform: scaleX(1); }
.feature-index {
  color: var(--text-mute);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: .04em;
}
.feature h3 {
  font-size: 17px;
  color: var(--text);
  margin: 0 0 8px;
  font-weight: 600;
  letter-spacing: -.014em;
}
.feature p {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}
.feature p b { color: var(--text); font-weight: 600; }
.feature p code {
  background: var(--surface-3);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: ui-monospace, monospace;
  font-size: 12.5px;
}

/* =========================================================================
   Audiences
   ========================================================================= */

.audiences {
  padding: 64px 32px 72px;
  max-width: 1360px;
  margin: 0 auto;
}
.audiences-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.audience {
  padding: 32px 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: border-color .12s;
}
.audience:hover { border-color: var(--border-strong); }
.audience-a { background: linear-gradient(180deg, var(--surface) 0%, #fbfcff 100%); }
.audience-b { background: linear-gradient(180deg, var(--surface) 0%, #fefaf5 100%); }
.audience header {
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.audience-badge {
  display: inline-block;
  padding: 5px 12px;
  background: var(--blue-soft);
  color: var(--blue);
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .04em;
  margin-bottom: 16px;
}
.audience-b .audience-badge { background: #fef3c7; color: #b45309; }
.audience h3 {
  font-size: 22px;
  line-height: 1.2;
  color: var(--text);
  margin: 0;
  font-weight: 700;
  letter-spacing: -.018em;
}
.audience ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.audience li {
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.55;
  padding-left: 22px;
  position: relative;
}
.audience li b { color: var(--text); font-weight: 600; }
.audience li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue);
}
.audience-b li::before { background: #d97706; }

/* =========================================================================
   How it works
   ========================================================================= */

.how {
  padding: 64px 32px 72px;
  max-width: 1080px;
  margin: 0 auto;
}
.how-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.how-steps li {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 22px 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color .12s;
}
.how-steps li:hover { border-color: var(--border-strong); }
.how-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--text);
  color: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -.02em;
}
.how-steps h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 4px 0 6px;
  letter-spacing: -.01em;
}
.how-steps p {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.55;
  margin: 0;
}

/* =========================================================================
   Final CTA
   ========================================================================= */

.final-cta {
  padding: 80px 32px 96px;
  background: var(--text);
  color: var(--surface);
  margin-top: 32px;
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(37, 99, 235, .35), transparent 42%),
    radial-gradient(circle at 80% 70%, rgba(96, 165, 250, .22), transparent 45%);
  pointer-events: none;
}
.final-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}
.final-cta h2 {
  font-size: 40px;
  line-height: 1.12;
  color: var(--surface);
  margin: 0 0 16px;
  font-weight: 700;
  letter-spacing: -.03em;
}
.final-cta p {
  color: rgba(255, 255, 255, .7);
  font-size: 17px;
  margin: 0 0 36px;
}
.final-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.final-cta .btn.btn-primary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--surface);
}
.final-cta .btn.btn-primary:hover {
  background: var(--surface-2);
  border-color: var(--surface-2);
  color: var(--text);
}

/* =========================================================================
   Footer
   ========================================================================= */

.landing-footer {
  padding: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-3);
  font-size: 13px;
  flex-wrap: wrap;
  gap: 16px;
  max-width: 1360px;
  margin: 0 auto;
}
.landing-footer b { color: var(--text); font-weight: 600; }
.landing-footer-tech {
  font-family: ui-monospace, monospace;
  font-size: 12px;
}

/* =========================================================================
   Responsive
   ========================================================================= */

@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-copy h1 { font-size: 38px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .audiences-grid { grid-template-columns: 1fr; }
  .landing-nav-links a:not(.btn) { display: none; }
}
@media (max-width: 640px) {
  .landing-nav { padding: 12px 16px; }
  .hero { padding: 40px 16px 48px; }
  .hero-copy h1 { font-size: 32px; }
  .hero-sub { font-size: 15.5px; }
  .features, .audiences, .how { padding: 48px 16px; }
  .features-grid { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 26px; }
  .final-cta h2 { font-size: 28px; }
  .final-cta { padding: 56px 16px 64px; }
  .preview-kpis { grid-template-columns: 1fr; }
}