/* ═══════════════════════════════════════════════════════
   NEGOTIALE — LANDING CSS
   Dark mode profesional. Variables primero, nada hardcodeado.
═══════════════════════════════════════════════════════ */

/* ── VARIABLES ── */
:root {
  --bg-base:       #080c14;
  --bg-surface:    #0d1421;
  --bg-elevated:   #111827;
  --bg-card:       #0f1a2e;
  --primary:       #2563eb;
  --primary-glow:  #3b82f6;
  --primary-dim:   rgba(37,99,235,0.15);
  --accent:        #10b981;
  --accent-dim:    rgba(16,185,129,0.12);
  --accent-warm:   #f59e0b;
  --accent-warm-dim: rgba(245,158,11,0.12);
  --danger:        #ef4444;
  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:    #475569;
  --border:        #1e2d40;
  --border-bright: #2d4a6e;
  --shadow-sm:     0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:     0 4px 20px rgba(0,0,0,0.5);
  --shadow-lg:     0 20px 60px rgba(0,0,0,0.6);
  --shadow-glow:   0 0 40px rgba(37,99,235,0.2);
  --radius-sm:     6px;
  --radius-md:     12px;
  --radius-lg:     20px;
  --radius-xl:     28px;
  --font:          -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition:    0.25s ease;
  --container:     1140px;
}

/* ── RESET ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: var(--font); cursor: pointer; border: none; }

/* ── CONTAINER ── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── TIPOGRAFÍA ── */
.text-gradient {
  background: linear-gradient(135deg, var(--primary-glow), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-muted  { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.text-warm   { color: var(--accent-warm); }

/* ── BADGES ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-primary {
  background: var(--primary-dim);
  color: var(--primary-glow);
  border: 1px solid rgba(59,130,246,0.25);
}

.badge-accent {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(16,185,129,0.25);
}

.badge-warm {
  background: var(--accent-warm-dim);
  color: var(--accent-warm);
  border: 1px solid rgba(245,158,11,0.25);
}

/* ── BOTONES ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(37,99,235,0.35);
}

.btn-primary:hover {
  background: var(--primary-glow);
  box-shadow: 0 8px 30px rgba(37,99,235,0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-bright);
}

.btn-outline:hover {
  background: var(--bg-elevated);
  border-color: var(--primary-glow);
  color: var(--primary-glow);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px rgba(16,185,129,0.3);
}

.btn-accent:hover {
  background: #0ea572;
  box-shadow: 0 8px 30px rgba(16,185,129,0.45);
}

.btn-lg {
  padding: 15px 32px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

/* ── SECCIÓN BASE ── */
.section {
  padding: 100px 0;
}

.section-sm {
  padding: 60px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* ── DIVIDER ── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-bright), transparent);
  margin: 0;
}

/* ════════════════════════════════════════
   NAVBAR
════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: all var(--transition);
}

.navbar.scrolled {
  background: rgba(8,12,20,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: relative;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
}

.nav-logo img {
  width: 36px;
  height: 36px;
}

.nav-logo span {
  background: linear-gradient(135deg, var(--text-primary), var(--primary-glow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
}

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

.nav-login {
  padding: 8px 18px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: #0d9e6e;
  box-shadow: 0 2px 12px rgba(13,158,110,0.3);
  transition: all var(--transition);
}

.nav-login:hover {
  background: #0bb87f;
  box-shadow: 0 4px 20px rgba(13,158,110,0.45);
  color: #fff;
}

.nav-toggle {
  display: none;
  background: none;
  color: var(--text-primary);
  font-size: 1.4rem;
  padding: 4px;
  z-index: 1001;
  position: relative;
}
.nav-mobile-only { display: none; }

/* ════════════════════════════════════════
   HERO
════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

/* Fondo con gradiente y grid */
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(37,99,235,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 80%, rgba(16,185,129,0.08) 0%, transparent 50%),
    var(--bg-base);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.3;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

/* Métricas del hero */
.hero-metrics {
  display: flex;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(13,20,33,0.8);
  backdrop-filter: blur(10px);
  overflow: hidden;
  max-width: 700px;
  margin: 0 auto;
}

.hero-metric {
  flex: 1;
  min-width: 140px;
  padding: 20px 24px;
  text-align: center;
  border-right: 1px solid var(--border);
  transition: background var(--transition);
}

.hero-metric:last-child { border-right: none; }

.hero-metric:hover { background: var(--bg-elevated); }

.hero-metric-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary-glow);
  line-height: 1;
  margin-bottom: 4px;
}

.hero-metric-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ════════════════════════════════════════
   CICLO — DIAGRAMA SVG
════════════════════════════════════════ */
.cycle-section {
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cycle-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cycle-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.cycle-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

.cycle-text p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.cycle-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cycle-point {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-surface);
  transition: all var(--transition);
  cursor: default;
}

.cycle-point:hover {
  border-color: var(--primary);
  background: var(--bg-elevated);
  transform: translateX(4px);
}

.cycle-point-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.cycle-point-text strong {
  display: block;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.cycle-point-text span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* SVG del ciclo */
.cycle-diagram {
  display: flex;
  justify-content: center;
  align-items: center;
}

.cycle-svg-wrapper {
  position: relative;
  width: 420px;
  height: 420px;
}

.cycle-svg-wrapper svg {
  width: 100%;
  height: 100%;
}

/* Nodos del ciclo */
.cycle-node {
  cursor: pointer;
  transition: all 0.3s;
}

.cycle-node circle {
  transition: all 0.3s;
}

.cycle-node:hover circle {
  filter: brightness(1.3);
}

.cycle-node text {
  font-family: var(--font);
  font-size: 11px;
  font-weight: 600;
  fill: var(--text-primary);
  text-anchor: middle;
  dominant-baseline: middle;
  pointer-events: none;
}

.cycle-node .node-icon {
  font-size: 18px;
  text-anchor: middle;
  dominant-baseline: middle;
}

/* Líneas animadas */
.cycle-path {
  fill: none;
  stroke: var(--border-bright);
  stroke-width: 1.5;
  stroke-dasharray: 6 4;
  animation: dashFlow 3s linear infinite;
}

.cycle-path-active {
  stroke: var(--primary);
  opacity: 0.6;
}

@keyframes dashFlow {
  to { stroke-dashoffset: -20; }
}

/* Centro del ciclo */
.cycle-center {
  cursor: default;
}

.cycle-center-bg {
  fill: var(--bg-elevated);
  stroke: var(--border-bright);
  stroke-width: 1;
}

.cycle-center-text {
  font-family: var(--font);
  font-size: 13px;
  font-weight: 800;
  fill: var(--text-primary);
  text-anchor: middle;
  dominant-baseline: middle;
}

/* ════════════════════════════════════════
   PROBLEMA — ANTES / DESPUÉS
════════════════════════════════════════ */
.problem-section {
  padding: 100px 0;
  background: var(--bg-surface);
}

.problem-intro {
  text-align: center;
  margin-bottom: 64px;
}

.problem-intro h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.problem-intro p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.problem-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  transform: scaleX(0);
  transition: transform 0.4s;
}

.problem-card:hover::before { transform: scaleX(1); }

.problem-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.problem-card-before {
  border-color: rgba(239,68,68,0.2);
}

.problem-card-before::before {
  background: linear-gradient(90deg, transparent, var(--danger), transparent);
}

.problem-card-after {
  border-color: rgba(16,185,129,0.2);
}

.problem-card-after::before {
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.problem-card-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.label-before { color: var(--danger); }
.label-after  { color: var(--accent); }

.problem-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.problem-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  line-height: 1.5;
}

.problem-item-icon {
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.problem-item-text { color: var(--text-secondary); }
.problem-item-text strong { color: var(--text-primary); }

/* ════════════════════════════════════════
   PLATAFORMA — QUÉ ES NEGOTIALE
════════════════════════════════════════ */
.platform-section {
  padding: 100px 0;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 64px;
}

.platform-card {
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-surface);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.platform-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  opacity: 0;
  transition: opacity var(--transition);
}

.platform-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.platform-card:hover::after { opacity: 1; }

.platform-card-blue::after  { background: var(--primary); }
.platform-card-green::after { background: var(--accent); }
.platform-card-warm::after  { background: var(--accent-warm); }

.platform-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.icon-blue  { background: var(--primary-dim); }
.icon-green { background: var(--accent-dim); }
.icon-warm  { background: var(--accent-warm-dim); }

.platform-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.platform-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.platform-card-features {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.platform-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.platform-feature::before {
  content: '→';
  color: var(--primary-glow);
  font-weight: 700;
  flex-shrink: 0;
}

/* ════════════════════════════════════════
   FUNCIONES — TABS
════════════════════════════════════════ */
.features-section {
  padding: 100px 0;
  background: var(--bg-surface);
}

.features-tabs {
  display: flex;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  padding: 6px;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.features-tab {
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  transition: all var(--transition);
}

.features-tab:hover {
  color: var(--text-secondary);
  background: var(--bg-surface);
}

.features-tab.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 12px rgba(37,99,235,0.4);
}

.features-panel {
  display: none;
  animation: fadeUp 0.3s ease forwards;
}

.features-panel.active { display: block; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

.feature-card {
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-elevated);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.feature-card-icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ════════════════════════════════════════
   COMPARATIVA — 3 COLUMNAS
════════════════════════════════════════ */
.compare-section {
  padding: 100px 0;
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-top: 64px;
}

.compare-col {
  padding: 0;
}

.compare-col-header {
  padding: 28px 24px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.compare-col-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.compare-col-header p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.compare-col-excel   { background: var(--bg-surface); }
.compare-col-others  { background: var(--bg-surface); border-left: 1px solid var(--border); border-right: 1px solid var(--border); }
.compare-col-negotiale {
  background: linear-gradient(180deg, rgba(37,99,235,0.08) 0%, var(--bg-surface) 100%);
  border-left: 1px solid rgba(37,99,235,0.3);
}

.compare-col-negotiale .compare-col-header {
  background: var(--primary-dim);
  border-bottom-color: rgba(37,99,235,0.3);
}

.compare-col-negotiale .compare-col-header h3 {
  color: var(--primary-glow);
}

.compare-rows {
  display: flex;
  flex-direction: column;
}

.compare-row {
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 52px;
}

.compare-row:last-child { border-bottom: none; }

.compare-row-label {
  color: var(--text-secondary);
}

.compare-yes   { color: var(--accent); font-weight: 600; }
.compare-no    { color: var(--text-muted); }
.compare-partial { color: var(--accent-warm); }

.compare-col-negotiale .compare-row {
  background: rgba(37,99,235,0.03);
}

.compare-col-negotiale .compare-row:hover {
  background: rgba(37,99,235,0.07);
}

/* ════════════════════════════════════════
   RUBROS
════════════════════════════════════════ */
.rubros-section {
  padding: 100px 0;
  background: var(--bg-surface);
}

.rubros-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
  margin-top: 48px;
}

.rubro-card {
  padding: 20px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  text-align: center;
  transition: all var(--transition);
  cursor: default;
}

.rubro-card:hover {
  border-color: var(--primary);
  background: var(--bg-elevated);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(37,99,235,0.15);
}

.rubro-icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

.rubro-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.rubro-card:hover .rubro-name {
  color: var(--text-primary);
}

/* ════════════════════════════════════════
   PLANES
════════════════════════════════════════ */
.plans-section {
  padding: 100px 0;
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 64px;
  align-items: start
}

.plan-card {
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-surface);
  transition: all var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.plan-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.plan-card-featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(37,99,235,0.08) 0%, var(--bg-surface) 100%);
  box-shadow: 0 0 0 1px var(--primary), var(--shadow-glow);
}

.plan-card-featured:hover {
  box-shadow: 0 0 0 1px var(--primary-glow), 0 20px 60px rgba(37,99,235,0.3);
}

.plan-badge-featured {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 20px;
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.plan-name {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.plan-price {
  font-size: 3rem;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 6px;
}

.plan-price sup {
  font-size: 1.2rem;
  font-weight: 600;
  vertical-align: super;
  color: var(--text-secondary);
}

.plan-price sub {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-muted);
}

.plan-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
  margin-bottom: 28px;
}

.plan-feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.plan-feature-check {
  color: var(--accent);
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.plan-feature-x {
  color: var(--text-muted);
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.plan-feature.disabled {
  opacity: 0.4;
}

.plan-cta {
  width: 100%;
  justify-content: center;
}

.plan-trial {
  text-align: center;
  margin-top: 32px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.plan-trial strong {
  color: var(--accent);
}

/* ── PROMOCIONES ── */
.promos-section { padding: 24px 0; }
.promos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 640px) {
  .promos-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .promos-grid { grid-template-columns: 1fr; }
}

.promo-card {
  position: relative;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}

.promo-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
}
.promo-card-offer {
  background: linear-gradient(135deg, rgba(26,103,179,0.1) 0%, rgba(13,20,33,0.95) 100%);
  border-color: rgba(26,103,179,0.3);
}
.promo-card-referral {
  background: linear-gradient(135deg, rgba(46,125,50,0.1) 0%, rgba(13,20,33,0.95) 100%);
  border-color: rgba(104,204,141,0.25);
}

.promo-icon { font-size: 1.6rem; flex-shrink: 0; line-height: 1; }
.promo-body { flex: 1; min-width: 0; }
.promo-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.68rem;
  font-weight: 700;
  background: rgba(26,103,179,0.15);
  border: 1px solid rgba(26,103,179,0.3);
  color: #33a5d5;
  margin-bottom: 4px;
}
.promo-badge-green {
  background: rgba(46,125,50,0.15);
  border-color: rgba(104,204,141,0.3);
  color: #68cc8d;
}
.promo-card h3 {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 2px;
  line-height: 1.3;
}
.promo-price { color: #33a5d5; }
.promo-card-referral .promo-price { color: #68cc8d; }
.promo-card p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin: 0;
}
.promo-features { display: none; }
.promo-note     { display: none; }
.promo-actions {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}
.promo-btn {
  white-space: nowrap;
  font-size: 0.8rem;
  padding: 8px 16px;
}
.promo-sub-note {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-align: right;
  max-width: 140px;
  line-height: 1.3;
}
@media (max-width: 640px) {
  .promo-card    { flex-direction: column; align-items: flex-start; }
  .promo-actions { align-items: stretch; width: 100%; }
  .promo-btn     { text-align: center; justify-content: center; }
  .promo-sub-note { text-align: left; max-width: 100%; }
}

.arch-layout {
  display: flex;
  gap: 48px;
  align-items: center;
  flex-wrap: wrap;
}
.arch-legend {
  flex: 1;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.arch-legend-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.arch-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 5px;
}
.arch-legend-item strong {
  display: block;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.arch-legend-item span {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}
@media (max-width: 768px) {
  .arch-layout { flex-direction: column; }
  #arch-diagram { max-width: 100%; height: 280px; }
}

.payment-methods {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.payment-method {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-surface);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.payment-method-icon {
  font-size: 1.1rem;
}

/* ════════════════════════════════════════
   FAQ
════════════════════════════════════════ */
.faq-section {
  padding: 100px 0;
  background: var(--bg-surface);
}

.faq-list {
  max-width: 720px;
  margin: 64px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item.open {
  border-color: var(--border-bright);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  transition: background var(--transition);
}

.faq-question:hover {
  background: var(--bg-elevated);
}

.faq-icon {
  font-size: 1.2rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform var(--transition), color var(--transition);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  color: var(--primary-glow);
}

.faq-answer {
  display: none;
  padding: 0 24px 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeUp 0.2s ease forwards;
}

/* ════════════════════════════════════════
   CTA FINAL
════════════════════════════════════════ */
.cta-section {
  padding: 120px 0;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 80% at 50% 50%, rgba(37,99,235,0.12) 0%, transparent 70%),
    var(--bg-base);
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
}

.cta-content p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.cta-note {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.cta-note strong {
  color: var(--accent);
}

/* ════════════════════════════════════════
   FOOTER
════════════════════════════════════════ */
.footer {
  padding: 60px 0 32px;
  border-top: 1px solid var(--border);
  background: var(--bg-base);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 14px;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  list-style: none;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-social {
  display: flex;
  gap: 10px;
}

.social-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all var(--transition);
}

.social-btn:hover {
  border-color: var(--border-bright);
  color: var(--text-primary);
  background: var(--bg-elevated);
}

/* ════════════════════════════════════════
   ANIMACIONES GLOBALES
════════════════════════════════════════ */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37,99,235,0.3); }
  50%       { box-shadow: 0 0 0 12px rgba(37,99,235,0); }
}

@keyframes counter-up {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════ */
@media (max-width: 1024px) {
  .cycle-layout       { grid-template-columns: 1fr; gap: 48px; }
  .cycle-diagram      { order: 0; }
  .cycle-svg-wrapper  { width: 340px; height: 340px; }
  .platform-grid      { grid-template-columns: 1fr 1fr; }
  .plans-grid         { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
  .footer-grid        { grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
}

@media (max-width: 768px) {
  .section            { padding: 72px 0; }
  .nav-links          { display: none; }
  .nav-toggle         { display: block; }
  .nav-cta-desktop    { display: none; }

  /* Overlay oscuro detrás del menú */
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    backdrop-filter: blur(2px);
    opacity: 0;
    transition: opacity 0.5s ease;
  }
  .nav-overlay.open {
    display: block;
    opacity: 1;
  }

  /* Menú deslizante desde la derecha, mitad pantalla */
  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 72vw;
    max-width: 320px;
    background: var(--bg-elevated);
    border-left: 1px solid var(--border);
    padding: 80px 24px 32px;
    flex-direction: column;
    gap: 4px;
    z-index: 1000;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -8px 0 40px rgba(0,0,0,0.4);
  }
  
  .nav-links.open {
    transform: translateX(0);
  }

  .nav-links li a {
    display: block;
    font-size: 1rem;
    font-weight: 500;
    padding: 13px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition);
  }
  .nav-links.open li a:hover {
    background: var(--bg-surface);
    color: var(--text-primary);
    padding-left: 22px;
  }
  .hero h1            { font-size: 2.2rem; }
  .hero-metrics       { flex-direction: column; }
  .hero-metric        { border-right: none; border-bottom: 1px solid var(--border); }
  .hero-metric:last-child { border-bottom: none; }
  .problem-grid       { grid-template-columns: 1fr; }
  .platform-grid      { grid-template-columns: 1fr; }
  .compare-grid       { grid-template-columns: 1fr; }
  .compare-col-others { border-left: none; border-right: none; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
  .compare-col-negotiale { border-left: none; border-top: 1px solid rgba(37,99,235,0.3); }
  .rubros-grid        { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .footer-grid        { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom      { flex-direction: column; text-align: center; }
  .cycle-svg-wrapper  { width: 280px; height: 280px; }
  .features-tabs      { gap: 4px; }
  .features-tab       { padding: 8px 14px; font-size: 0.82rem; }
}

@media (max-width: 480px) {
  .container          { padding: 0 16px; }
  .hero               { padding: 100px 0 60px; }
  .hero h1            { font-size: 1.9rem; }
  .hero-actions       { flex-direction: column; align-items: center; }
  .btn-lg             { width: 100%; justify-content: center; }
  .cta-actions        { flex-direction: column; align-items: center; }
  .plans-grid         { max-width: 100%; }
}

/* ── FIX: botones dentro de reveal visible ── */
.reveal.visible .btn:hover {
  transform: translateY(-2px);
}

/* ── DIAGRAMA SVG más grande ── */
.cycle-svg-wrapper {
  width: 480px;
  height: 480px;
}

@media (max-width: 1024px) {
  .cycle-svg-wrapper { width: 360px; height: 360px; }
}

@media (max-width: 768px) {
  .cycle-svg-wrapper { width: 300px; height: 300px; }
}

/* ── SECCIÓN DIAGRAMA CÍCLICO ── */
.flow-section {
  padding: 100px 0;
  background: var(--bg-surface);
}

.flow-diagram-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 56px;
}

#flow-diagram {
  width: 520px;
  height: 520px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  #flow-diagram { width: 340px; height: 340px; }
}

@media (max-width: 480px) {
  #flow-diagram { width: 300px; height: 300px; }
}

/* ── SECCIÓN FLUJO REDISEÑADA ── */
.flow-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.flow-diagram-side {
  display: flex;
  justify-content: center;
}

.flow-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.flow-text > p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.flow-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.flow-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-surface);
  transition: all var(--transition);
}

.flow-step:hover {
  border-color: var(--border-bright);
  background: var(--bg-elevated);
  transform: translateX(4px);
}

.flow-step-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.flow-step div:last-child {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.flow-step strong {
  font-size: 0.9rem;
  color: var(--text-primary);
  display: block;
}

.flow-step span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media (max-width: 1024px) {
  .flow-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .flow-diagram-side { order: 2; }
  .flow-text         { order: 1; }
}

@media (max-width: 1024px) {
  #star-diagram { width: 420px; height: 420px; }
}
@media (max-width: 768px) {
  #star-diagram { width: 320px; height: 320px; margin: 0 auto; }
}

#landing-blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 1024px) { #landing-blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px)  { #landing-blog-grid { grid-template-columns: 1fr; } }