/* ============================================================
   PUBLIEXPERT — Design tokens + component styles
   Dirección de arte: "Operador técnico premium"
   Azul petróleo (confianza/tecnología) + grafito cálido + hueso
   ============================================================ */

:root {
  /* ---- Type scale (fluid) ---- */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);

  /* ---- Spacing (4px base) ---- */
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  /* ---- Radius ---- */
  --radius-sm: 0.3rem; --radius-md: 0.55rem; --radius-lg: 0.9rem; --radius-xl: 1.3rem; --radius-full: 9999px;

  /* ---- Transitions ---- */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* ---- Content widths ---- */
  --content-narrow: 640px;
  --content-default: 980px;
  --content-wide: 1240px;

  /* ---- Fonts ---- */
  --font-display: 'Cabinet Grotesk', 'General Sans', 'Segoe UI', sans-serif;
  --font-body: 'Satoshi', 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
}

/* ============ LIGHT MODE (default) — Grafito cálido / hueso ============ */
:root, [data-theme="light"] {
  --color-bg: #f5f3ef;
  --color-surface: #fbfaf7;
  --color-surface-2: #ffffff;
  --color-surface-offset: #edeae3;
  --color-surface-dynamic: #e3dfd6;
  --color-divider: #ddd8cd;
  --color-border: #d2ccbe;

  --color-text: #1c2321;
  --color-text-muted: #5c6560;
  --color-text-faint: #98988f;
  --color-text-inverse: #f5f3ef;

  /* Primary accent: Petróleo técnico */
  --color-primary: #0d4f4a;
  --color-primary-hover: #0a3e3a;
  --color-primary-active: #072e2b;
  --color-primary-highlight: #d8e6e1;
  --color-primary-soft: #e6efec;

  /* Signal accent (used sparingly — CTAs/badges) */
  --color-signal: #dc5a13;
  --color-signal-hover: #b8480a;
  --color-signal-highlight: #fce4d3;
  --color-signal-glow: 0 6px 20px -6px rgba(220, 90, 19, 0.45);

  --color-success: #3f7a4c;
  --color-success-highlight: #d9e6da;
  --color-warning: #a1631c;
  --color-warning-highlight: #ecdcc4;

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 170 / 0.06);
  --shadow-md: 0 4px 16px oklch(0.2 0.02 170 / 0.09);
  --shadow-lg: 0 16px 40px oklch(0.2 0.02 170 / 0.14);
}

/* ============ DARK MODE — Grafito profundo ============ */
[data-theme="dark"] {
  --color-bg: #12100e;
  --color-surface: #181613;
  --color-surface-2: #1e1c18;
  --color-surface-offset: #211f1a;
  --color-surface-dynamic: #2a2722;
  --color-divider: #2c2a25;
  --color-border: #38352e;

  --color-text: #eae7df;
  --color-text-muted: #a6a297;
  --color-text-faint: #706c60;
  --color-text-inverse: #16150f;

  --color-primary: #4fa89c;
  --color-primary-hover: #6bbcb1;
  --color-primary-active: #3c8f84;
  --color-primary-highlight: #223834;
  --color-primary-soft: #1b2b27;

  --color-signal: #ff7a2e;
  --color-signal-hover: #ff9152;
  --color-signal-highlight: #3a2c1c;
  --color-signal-glow: 0 6px 20px -6px rgba(255, 122, 46, 0.5);

  --color-success: #7cb887;
  --color-success-highlight: #223224;
  --color-warning: #d3a15c;
  --color-warning-highlight: #362a19;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 16px 40px oklch(0 0 0 / 0.5);
}

body { transition: background 0.4s ease, color 0.4s ease; }

/* ============ LAYOUT PRIMITIVES ============ */
.container { max-width: var(--content-wide); margin-inline: auto; padding-inline: var(--space-6); }
.container-narrow { max-width: var(--content-narrow); margin-inline: auto; padding-inline: var(--space-6); }
.container-default { max-width: var(--content-default); margin-inline: auto; padding-inline: var(--space-6); }

.section { padding-block: clamp(var(--space-16), 8vw, var(--space-24)); }
.section-tight { padding-block: clamp(var(--space-12), 6vw, var(--space-16)); }

.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs); font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-primary); margin-bottom: var(--space-4);
}
.eyebrow::before { content: ''; width: 18px; height: 1px; background: var(--color-primary); }

.section-title { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; letter-spacing: -0.01em; margin-bottom: var(--space-4); max-width: 32ch; }
.section-lede { font-size: var(--text-base); color: var(--color-text-muted); max-width: 58ch; line-height: 1.65; }

/* ============ HEADER ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.site-header.scrolled {
  border-bottom-color: var(--color-divider);
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}
.site-header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: var(--space-3); text-decoration: none; color: var(--color-text); }
.brand svg { height: 32px; width: auto; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: var(--text-base); letter-spacing: -0.01em; }
.brand-tag { display: block; font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.05em; color: var(--color-text-faint); text-transform: uppercase; margin-top: -2px; }

.main-nav { display: flex; align-items: center; gap: var(--space-8); }
.main-nav a { font-size: var(--text-sm); color: var(--color-text-muted); text-decoration: none; font-weight: 500; }
.main-nav a:hover { color: var(--color-text); }

.header-actions { display: flex; align-items: center; gap: var(--space-3); }
.icon-btn {
  width: 40px; height: 40px; border-radius: var(--radius-full);
  border: 1px solid var(--color-border); background: var(--color-surface);
  display: flex; align-items: center; justify-content: center; color: var(--color-text-muted);
}
.icon-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }

.mobile-toggle { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; color: var(--color-text); }
.mobile-nav {
  display: none; position: fixed; inset: 72px 0 0 0; z-index: 110;
  background: var(--color-bg); padding: var(--space-8) var(--space-6);
  flex-direction: column; gap: var(--space-2); overflow-y: auto;
}
.mobile-nav.active { display: flex; }
.mobile-nav a { font-size: var(--text-lg); color: var(--color-text); text-decoration: none; padding: var(--space-3) 0; border-bottom: 1px solid var(--color-divider); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-sm);
  font-size: var(--text-sm); font-weight: 600; text-decoration: none; white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn-primary:hover { background: var(--color-primary-hover); box-shadow: var(--shadow-md); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-signal { background: var(--color-signal); color: #fff8f0; box-shadow: var(--color-signal-glow); }
.btn-signal:hover { background: var(--color-signal-hover); box-shadow: 0 10px 28px -6px rgba(220, 90, 19, 0.55); transform: translateY(-1px); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }
.btn-block { width: 100%; }

/* ============ HERO ============ */
.hero { padding-top: clamp(var(--space-16), 10vw, var(--space-24)); padding-bottom: clamp(var(--space-12), 6vw, var(--space-20)); position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: var(--space-16); align-items: start; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-full);
  background: var(--color-primary-soft); border: 1px solid var(--color-primary-highlight);
  font-size: var(--text-xs); font-weight: 600; color: var(--color-primary); margin-bottom: var(--space-6);
}
.hero-kicker .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-signal); }
.hero h1 { font-family: var(--font-display); font-size: var(--text-3xl); font-weight: 700; letter-spacing: -0.02em; line-height: 1.05; margin-bottom: var(--space-6); }
.hero h1 .accent { color: var(--color-primary); }
.hero-sub { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 46ch; line-height: 1.6; margin-bottom: var(--space-8); }
.hero-ctas { display: flex; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-10); }
.hero-note { font-size: var(--text-xs); color: var(--color-text-faint); }

.hero-proof {
  display: flex; gap: var(--space-8); flex-wrap: wrap;
  padding-top: var(--space-8); border-top: 1px solid var(--color-divider);
}
.proof-stat-value { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; color: var(--color-text); }
.proof-stat-label { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-1); }

/* Hero side panel — operator credibility card */
.hero-panel {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-8);
  box-shadow: var(--shadow-lg);
}
.hero-panel-label { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-faint); margin-bottom: var(--space-5); }
.hero-panel-row { display: flex; align-items: flex-start; gap: var(--space-3); padding-block: var(--space-3); border-bottom: 1px solid var(--color-divider); }
.hero-panel-row:last-child { border-bottom: none; }
.hero-panel-row svg { flex-shrink: 0; color: var(--color-primary); margin-top: 2px; }
.hero-panel-row-text { font-size: var(--text-sm); color: var(--color-text); line-height: 1.5; }
.hero-panel-row-text strong { display: block; font-size: var(--text-sm); font-weight: 600; }
.hero-panel-row-text span { color: var(--color-text-muted); font-size: var(--text-xs); }

/* ============ TRUST STRIP ============ */
.trust-strip { border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); background: var(--color-surface); }
.trust-strip-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-6); padding-block: var(--space-6); }
.trust-strip-label { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.05em; text-transform: uppercase; color: var(--color-text-faint); }
.trust-logos { display: flex; align-items: center; gap: var(--space-8); flex-wrap: wrap; }
.trust-logo { font-family: var(--font-display); font-weight: 600; font-size: var(--text-sm); color: var(--color-text-muted); }

/* ============ WHY / OPERATOR CREDIBILITY ============ */
.why-section { background: var(--color-surface); border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.why-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--space-16); align-items: start; margin-top: var(--space-12); }
.why-list { display: flex; flex-direction: column; }
.why-item { display: grid; grid-template-columns: 48px 1fr; gap: var(--space-5); padding-block: var(--space-6); border-top: 1px solid var(--color-divider); }
.why-item:first-child { border-top: none; }
.why-item-num { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-text-faint); padding-top: var(--space-1); }
.why-item h3 { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 600; margin-bottom: var(--space-2); }
.why-item p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.65; max-width: 48ch; }

.stack-card {
  background: var(--color-surface-2); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-8); box-shadow: var(--shadow-md);
}
.stack-card-title { font-family: var(--font-mono); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-faint); margin-bottom: var(--space-5); }
.stack-row { display: flex; justify-content: space-between; align-items: baseline; padding-block: var(--space-3); border-bottom: 1px solid var(--color-divider); gap: var(--space-4); }
.stack-row:last-child { border-bottom: none; }
.stack-row-name { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); }
.stack-row-name span { display: block; font-weight: 400; color: var(--color-text-muted); font-size: var(--text-xs); margin-top: 2px; }
.stack-row-badge { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-primary); white-space: nowrap; }

/* ============ FEATURES (asymmetric editorial rows) ============ */
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-16); align-items: center; padding-block: var(--space-16); border-top: 1px solid var(--color-divider); }
.feature-row:first-of-type { border-top: none; }
.feature-row.reverse .feature-visual { order: -1; }
.feature-eyebrow { font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.06em; color: var(--color-primary); margin-bottom: var(--space-3); }
.feature-content h3 { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; letter-spacing: -0.01em; margin-bottom: var(--space-4); line-height: 1.15; }
.feature-content p { font-size: var(--text-base); color: var(--color-text-muted); line-height: 1.7; margin-bottom: var(--space-6); max-width: 52ch; }
.feature-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.feature-tag { font-size: var(--text-xs); font-weight: 500; padding: var(--space-1) var(--space-3); border-radius: var(--radius-full); border: 1px solid var(--color-border); color: var(--color-text-muted); }

.feature-visual {
  border-radius: var(--radius-lg); background: var(--color-surface);
  border: 1px solid var(--color-border); aspect-ratio: 4/3.2; padding: var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-3); overflow: hidden; position: relative;
}
.viz-bar { height: 8px; border-radius: var(--radius-full); background: var(--color-surface-offset); }
.viz-bar.w60 { width: 60%; } .viz-bar.w40 { width: 40%; } .viz-bar.w80 { width: 80%; }
.viz-chat { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-2); }
.chat-bubble { max-width: 75%; padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); font-size: var(--text-xs); }
.chat-bubble.in { background: var(--color-surface-offset); align-self: flex-start; border-bottom-left-radius: var(--space-1); }
.chat-bubble.out { background: var(--color-primary); color: var(--color-text-inverse); align-self: flex-end; border-bottom-right-radius: var(--space-1); }
.viz-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.viz-kpi { background: var(--color-surface-2); border: 1px solid var(--color-divider); border-radius: var(--radius-md); padding: var(--space-4); text-align: left; }
.viz-kpi-num { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; color: var(--color-primary); }
.viz-kpi-label { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-1); }
.viz-bars { display: flex; align-items: flex-end; gap: var(--space-2); height: 90px; margin-top: auto; }
.viz-bars > div { flex: 1; background: var(--color-primary-highlight); border-radius: var(--radius-sm) var(--radius-sm) 0 0; }
.viz-bars > div.peak { background: var(--color-primary); }

/* ============ PRICING ============ */
.pricing-section { background: var(--color-surface); border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); margin-top: var(--space-12); align-items: stretch; }
.price-card {
  background: var(--color-surface-2); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-8);
  display: flex; flex-direction: column; position: relative;
}
.price-card.featured { border-color: var(--color-primary); box-shadow: var(--shadow-lg); }
.price-card-badge {
  position: absolute; top: -13px; left: var(--space-8);
  background: var(--color-primary); color: var(--color-text-inverse);
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
  padding: var(--space-1) var(--space-4); border-radius: var(--radius-full);
}
.price-card-name { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-faint); margin-bottom: var(--space-2); }
.price-card-title { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-3); }
.price-card-desc { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-6); line-height: 1.6; min-height: 3.2em; }
.price-value { display: flex; align-items: baseline; gap: var(--space-1); font-family: var(--font-display); margin-bottom: var(--space-1); }
.price-value .num { font-size: var(--text-xl); font-weight: 700; }
.price-value .cur { font-size: var(--text-sm); font-weight: 600; color: var(--color-text-muted); }
.price-period { font-size: var(--text-xs); color: var(--color-text-faint); margin-bottom: var(--space-6); }
.price-cta { margin-bottom: var(--space-6); }
.price-features { display: flex; flex-direction: column; gap: var(--space-3); flex-grow: 1; margin-bottom: var(--space-6); }
.price-features li { display: flex; align-items: flex-start; gap: var(--space-2); font-size: var(--text-sm); color: var(--color-text); line-height: 1.5; }
.price-features li svg { flex-shrink: 0; color: var(--color-primary); margin-top: 3px; }
.price-card-foot { font-size: var(--text-xs); color: var(--color-text-faint); padding-top: var(--space-4); border-top: 1px solid var(--color-divider); }

.pricing-addon {
  margin-top: var(--space-8); background: var(--color-surface-2); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-8);
  display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--space-8); align-items: center;
}
.pricing-addon h3 { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-3); }
.pricing-addon p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }
.addon-price { text-align: right; }
.addon-price .num { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; }
.addon-price .label { font-size: var(--text-xs); color: var(--color-text-faint); display: block; margin-top: var(--space-1); }

.pricing-note { text-align: center; font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-8); }

/* ============ HOW IT WORKS ============ */
.steps-list { max-width: var(--content-narrow); margin: var(--space-12) auto 0; }
.step-row { display: grid; grid-template-columns: 56px 1fr; gap: var(--space-6); padding-block: var(--space-6); border-top: 1px solid var(--color-divider); }
.step-row:first-child { border-top: none; padding-top: 0; }
.step-num { width: 44px; height: 44px; border-radius: 50%; background: var(--color-primary-soft); border: 1px solid var(--color-primary-highlight); display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 700; color: var(--color-primary); }
.step-row h3 { font-family: var(--font-display); font-size: var(--text-base); font-weight: 700; margin-bottom: var(--space-2); }
.step-row p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; max-width: 56ch; }

/* ============ TESTIMONIALS ============ */
.testimonials-section { background: var(--color-surface); border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); margin-top: var(--space-12); }
.testimonial-card { background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); }
.testimonial-stars { color: var(--color-signal); font-size: var(--text-sm); margin-bottom: var(--space-4); letter-spacing: 2px; }
.testimonial-text { font-size: var(--text-sm); line-height: 1.65; color: var(--color-text); margin-bottom: var(--space-5); }
.testimonial-author { display: flex; align-items: center; gap: var(--space-3); }
.testimonial-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--color-primary-soft); color: var(--color-primary); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: var(--text-xs); }
.testimonial-name { font-size: var(--text-sm); font-weight: 600; }
.testimonial-role { font-size: var(--text-xs); color: var(--color-text-faint); }

.client-logo-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4);
  margin-top: var(--space-12);
}
.client-logo {
  display: flex; align-items: center; justify-content: center; text-align: center;
  padding: var(--space-6) var(--space-4); min-height: 88px;
  background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  font-family: var(--font-display); font-weight: 500; font-size: var(--text-sm); color: var(--color-text-muted);
  letter-spacing: -0.01em;
}

/* ============ FAQ ============ */
.faq-list { max-width: var(--content-narrow); margin: var(--space-12) auto 0; }
.faq-item { border-bottom: 1px solid var(--color-divider); }
.faq-item:first-child { border-top: 1px solid var(--color-divider); }
.faq-q {
  width: 100%; background: none; border: none; padding: var(--space-5) 0;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  text-align: left; font-size: var(--text-base); font-weight: 600; color: var(--color-text);
}
.faq-q:hover { color: var(--color-primary); }
.faq-q .plus { flex-shrink: 0; width: 22px; height: 22px; display: flex; align-items: center; justify-content: center; color: var(--color-text-faint); transition: transform 0.3s var(--ease-out); }
.faq-item.active .plus { transform: rotate(45deg); color: var(--color-primary); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s var(--ease-out); }
.faq-item.active .faq-a { max-height: 320px; }
.faq-a-inner { padding-bottom: var(--space-5); font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.7; max-width: 62ch; }

/* ============ FINAL CTA ============ */
.final-cta { position: relative; overflow: hidden; padding-block: clamp(var(--space-20), 10vw, var(--space-32)); background: var(--color-primary); }
[data-theme="dark"] .final-cta { background: var(--color-primary-active); }
.final-cta-inner { position: relative; z-index: 1; text-align: center; max-width: 680px; margin-inline: auto; }
.final-cta h2 { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 700; color: var(--color-text-inverse); letter-spacing: -0.015em; margin-bottom: var(--space-5); line-height: 1.1; }
.final-cta p { font-size: var(--text-base); color: color-mix(in oklab, var(--color-text-inverse) 78%, transparent); margin-bottom: var(--space-8); line-height: 1.6; }
.final-cta .btn-signal { font-size: var(--text-base); padding: var(--space-4) var(--space-10); }
.final-cta-alt { margin-top: var(--space-5); margin-bottom: 0; font-size: var(--text-sm); color: color-mix(in oklab, var(--color-text-inverse) 70%, transparent); }
.final-cta-alt a { color: var(--color-text-inverse); text-decoration: underline; text-underline-offset: 3px; }
.final-cta-note { margin-top: var(--space-3); font-size: var(--text-xs); color: color-mix(in oklab, var(--color-text-inverse) 55%, transparent); }

/* ============ FOOTER ============ */
.site-footer { padding-block: var(--space-16) var(--space-8); background: var(--color-surface); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--space-10); margin-bottom: var(--space-12); }
.footer-brand p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.65; margin-top: var(--space-4); max-width: 34ch; }
.footer-col-title { font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-faint); margin-bottom: var(--space-4); }
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { font-size: var(--text-sm); color: var(--color-text-muted); text-decoration: none; }
.footer-col a:hover { color: var(--color-primary); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3); padding-top: var(--space-6); border-top: 1px solid var(--color-divider); font-size: var(--text-xs); color: var(--color-text-faint); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-10); }
  .why-layout { grid-template-columns: 1fr; gap: var(--space-10); }
  .feature-row { grid-template-columns: 1fr; gap: var(--space-8); }
  .feature-row.reverse .feature-visual { order: 0; }
  .pricing-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
  .pricing-addon { grid-template-columns: 1fr; text-align: left; }
  .addon-price { text-align: left; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .mobile-toggle { display: flex; }
  .hero { padding-top: var(--space-10); padding-bottom: var(--space-10); }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { width: 100%; }
  .trust-logos { gap: var(--space-5); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .section { padding-block: var(--space-12); }
  .client-logo-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .container, .container-default, .container-narrow { padding-inline: var(--space-4); }
  .price-card { padding: var(--space-6); }
  .hero-panel { padding: var(--space-6); }
}

/* ============ SCROLL REVEAL ============ */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

/* ============================================================
   SOBRE NATHAN — Sección de credibilidad del fundador
   ============================================================ */
.about-section {
  background:
    radial-gradient(1200px 500px at 15% 0%, rgba(11,101,102,0.06), transparent 55%),
    radial-gradient(900px 500px at 85% 100%, rgba(220,90,19,0.05), transparent 60%),
    var(--color-surface);
  position: relative;
}
[data-theme="dark"] .about-section {
  background:
    radial-gradient(1200px 500px at 15% 0%, rgba(45,166,168,0.08), transparent 55%),
    radial-gradient(900px 500px at 85% 100%, rgba(255,122,46,0.05), transparent 60%),
    var(--color-surface);
}
.about-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(0, 1.4fr);
  gap: var(--space-10);
  align-items: start;
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: var(--space-8); }
}
.about-photo {
  position: sticky;
  top: 100px;
}
@media (max-width: 900px) { .about-photo { position: static; } }
.about-photo picture,
.about-photo img {
  display: block;
  width: 100%;
  border-radius: 20px;
  box-shadow:
    0 1px 3px rgba(0,0,0,0.06),
    0 12px 40px -8px rgba(11,101,102,0.15),
    0 20px 60px -12px rgba(0,0,0,0.12);
  aspect-ratio: 1 / 1;
  object-fit: cover;
}
[data-theme="dark"] .about-photo picture,
[data-theme="dark"] .about-photo img {
  box-shadow:
    0 12px 40px -8px rgba(45,166,168,0.2),
    0 20px 60px -12px rgba(0,0,0,0.5);
}
.about-photo-tag {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  font-size: 0.875rem;
  color: var(--color-text-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 500;
}
.about-photo-tag .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(11,101,102,0.12);
  flex-shrink: 0;
  animation: about-pulse 2.4s ease-in-out infinite;
}
[data-theme="dark"] .about-photo-tag .dot {
  box-shadow: 0 0 0 4px rgba(45,166,168,0.18);
}
@keyframes about-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}
.about-content h2 {
  margin: var(--space-3) 0 var(--space-4);
}
.about-lead {
  font-size: 1.125rem;
  color: var(--color-text-2);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}
.about-credentials {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-6);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
@media (max-width: 600px) {
  .about-credentials { grid-template-columns: 1fr; }
}
.about-credentials li {
  padding: var(--space-4);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.about-cred-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -0.02em;
}
[data-theme="dark"] .about-cred-num { color: var(--color-primary-2); }
.about-cred-label {
  font-size: 0.875rem;
  color: var(--color-text-2);
  line-height: 1.4;
}
.about-quote {
  padding: var(--space-5) var(--space-6);
  background: var(--color-surface-2);
  border-left: 3px solid var(--color-signal);
  border-radius: 0 12px 12px 0;
  margin-bottom: var(--space-6);
}
.about-quote p {
  margin: 0;
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.6;
  font-style: italic;
}
.about-quote strong {
  font-style: normal;
  color: var(--color-text);
  font-weight: 600;
}

/* Video embed — lazy load */
.about-video {
  margin-top: var(--space-4);
}
.about-video-label {
  font-size: 0.875rem;
  color: var(--color-text-2);
  margin-bottom: var(--space-3);
  font-weight: 500;
}
.video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 32px -8px rgba(0,0,0,0.25);
}
.video-play {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  display: block;
  transition: transform 0.3s var(--ease-out);
}
.video-play:hover { transform: scale(1.02); }
.video-play img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter 0.3s var(--ease-out);
}
.video-play:hover img { filter: brightness(1.05); }
.video-play-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease-out);
  pointer-events: none;
}
.video-play:hover .video-play-icon {
  transform: translate(-50%, -50%) scale(1.1);
}

/* ============================================================
   VIDEOS SECTION — Grid de videos destacados
   ============================================================ */
.videos-section { background: var(--color-surface-2); }
.section-lead {
  font-size: 1.0625rem;
  color: var(--color-text-2);
  margin-top: var(--space-3);
  line-height: 1.6;
}
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 900px) {
  .video-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .video-grid { grid-template-columns: 1fr; }
}
.video-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px -12px rgba(0,0,0,0.15);
  border-color: var(--color-primary);
}
[data-theme="dark"] .video-card:hover {
  box-shadow: 0 16px 40px -12px rgba(0,0,0,0.5);
  border-color: var(--color-primary-2);
}
.video-card-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
}
.video-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s var(--ease-out);
}
.video-card:hover .video-card-thumb img { transform: scale(1.05); }
.video-card-more-thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #cc0000 0%, #a30000 100%);
  color: #fff;
}
.video-card-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex-grow: 1;
}
.video-card-tag {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}
[data-theme="dark"] .video-card-tag { color: var(--color-primary-2); }
.video-card-body h3 {
  font-size: 1.125rem;
  margin: 0;
  line-height: 1.3;
  font-weight: 600;
}
.video-card-body p {
  font-size: 0.9375rem;
  color: var(--color-text-2);
  margin: 0;
  line-height: 1.5;
}