/* =========================================================
   Unattended OS Setup — Landing page (estática)
   Paleta y tokens
   ========================================================= */
:root {
  /* Marca / acentos */
  --cyan: #22d3ee;
  --cyan-2: #38bdf8;
  --cyan-strong: #06b6d4;
  --purple: #7c3aed;
  --purple-2: #8b5cf6;

  /* Tema oscuro (por defecto) */
  --bg: #030712;
  --bg-alt: #0a1020;
  --surface: #111828;
  --surface-2: #0d1524;
  --border: rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.22);
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --header-grad: linear-gradient(90deg, #2a1d5c 0%, #1d2a5e 45%, #123047 100%);
  --hero-grad: radial-gradient(1200px 600px at 50% -10%, #3a2c7a 0%, #1c1c46 30%, #060917 70%);
  --icon-tile-bg: rgba(34, 211, 238, 0.10);
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.7);

  --maxw: 1180px;
  --radius: 16px;
  --radius-sm: 10px;
  --font-display: "Quantico", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
}

html[data-theme="light"] {
  --bg: #eef2f8;
  --bg-alt: #ffffff;
  --surface: #ffffff;
  --surface-2: #f3f6fb;
  --border: rgba(15, 23, 42, 0.10);
  --border-strong: rgba(15, 23, 42, 0.18);
  --text: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;
  --header-grad: linear-gradient(90deg, #5b3fb3 0%, #3f5bb8 45%, #2a7fa8 100%);
  --hero-grad: radial-gradient(1200px 600px at 50% -10%, #c9b8ff 0%, #dfe6ff 35%, #eef2f8 70%);
  --icon-tile-bg: rgba(6, 182, 212, 0.12);
  --shadow: 0 20px 45px -22px rgba(30, 41, 59, 0.35);
}

/* =========================================================
   Base
   ========================================================= */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s ease, color .3s ease;
}
img { max-width: 100%; }
a { color: inherit; text-decoration: none; }
.display { font-family: var(--font-display); letter-spacing: .5px; }

.container { width: min(100% - 40px, var(--maxw)); margin-inline: auto; }
.container-narrow { width: min(100% - 40px, 860px); margin-inline: auto; }

.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }

.section-title {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 700;
  text-align: center;
  margin: 0 0 12px;
  line-height: 1.15;
}
.section-sub { text-align: center; color: var(--text-muted); font-size: 1.05rem; margin: 0 auto 42px; max-width: 760px; }
.section-desc { color: var(--text-muted); }
.section-desc.center { text-align: center; }
.narrow { max-width: 820px; margin-inline: auto; }
.center { text-align: center; }

/* =========================================================
   Botones
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-body); font-weight: 600; font-size: .98rem;
  padding: 13px 24px; border-radius: 10px; border: 1px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, filter .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-lg { padding: 16px 30px; font-size: 1.02rem; }
.btn-block { width: 100%; }

.btn-cyan {
  background: linear-gradient(135deg, var(--cyan), var(--cyan-strong));
  color: #04121a; box-shadow: 0 10px 25px -10px rgba(34, 211, 238, .6);
}
.btn-cyan:hover { filter: brightness(1.08); }
.btn-purple {
  background: linear-gradient(135deg, var(--purple-2), var(--purple));
  color: #fff; box-shadow: 0 10px 25px -10px rgba(124, 58, 237, .6);
}
.btn-dark {
  background: #0b1120; color: var(--text); border-color: var(--border-strong);
}
html[data-theme="light"] .btn-dark { background: #1e293b; color: #fff; }

/* =========================================================
   Header
   ========================================================= */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--header-grad);
  border-bottom: 1px solid rgba(255,255,255,.08);
  /* Estado inicial: oculto arriba (aparece al hacer scroll) */
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform .35s ease, opacity .35s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
  box-shadow: 0 8px 30px -12px rgba(0,0,0,.6);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 72px; transition: min-height .3s ease; }

.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; }
.brand-badge {
  width: 38px; height: 38px; border-radius: 50%; flex: 0 0 auto;
  display: block; object-fit: contain;
  box-shadow: 0 4px 14px -5px rgba(0,0,0,.55);
  transition: width .3s ease, height .3s ease;
}
.brand-name { color: #fff; font-size: 1.02rem; line-height: 1.1; max-width: 150px; transition: font-size .3s ease; }

/* Header compacto al hacer scroll */
.site-header.scrolled .header-inner { min-height: 54px; }
.site-header.scrolled .brand-badge { width: 30px; height: 30px; }
.site-header.scrolled .brand-name { font-size: .92rem; }
.site-header.scrolled .theme-toggle { width: 34px; height: 34px; }

.nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.nav a { color: rgba(255,255,255,.85); font-size: .92rem; font-weight: 500; white-space: nowrap; transition: color .2s; }
.nav a:hover { color: #fff; }

.header-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.06); color: #fff; cursor: pointer;
  display: grid; place-items: center; transition: background .2s, width .3s ease, height .3s ease;
}
.theme-toggle:hover { background: rgba(255,255,255,.15); }
.theme-toggle .icon-moon { display: none; }
html[data-theme="light"] .theme-toggle .icon-sun { display: none; }
html[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.menu-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: #fff; margin: 5px 0; border-radius: 2px; transition: .3s; }

/* =========================================================
   Hero
   ========================================================= */
.hero { position: relative; background: var(--hero-grad); padding: 70px 0 90px; overflow: hidden; }
.hero-inner { position: relative; z-index: 1; text-align: center; }
.hero-glow {
  position: absolute; inset: 0;
  background: radial-gradient(600px 300px at 20% 10%, rgba(124,58,237,.35), transparent 60%),
              radial-gradient(600px 300px at 85% 20%, rgba(34,211,238,.20), transparent 60%);
  pointer-events: none;
}
.hero-title {
  font-size: clamp(2.1rem, 6vw, 4.1rem); font-weight: 700; line-height: 1.08;
  margin: 0 auto 22px; max-width: 1000px; color: #fff;
  text-shadow: 0 2px 20px rgba(0,0,0,.3);
}
html[data-theme="light"] .hero-title { color: #17123a; text-shadow: none; }
.hero-lead { font-size: clamp(1.05rem, 2.4vw, 1.5rem); color: rgba(255,255,255,.92); max-width: 720px; margin: 0 auto 20px; }
html[data-theme="light"] .hero-lead { color: #2a2166; }
.hero-desc { color: rgba(255,255,255,.72); max-width: 720px; margin: 0 auto 34px; }
html[data-theme="light"] .hero-desc { color: #475569; }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 54px; }

/* Video card */
.video-card {
  max-width: 830px; margin: 0 auto; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border-strong); box-shadow: var(--shadow); cursor: pointer;
  background: #0b0e1a; transition: transform .25s ease;
}
.video-card:hover { transform: translateY(-4px); }
.video-thumb {
  position: relative; aspect-ratio: 16/9; overflow: hidden;
}
.video-cover { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.video-frame { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; display: block; }
.video-play {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 76px; height: 76px; border-radius: 50%; border: 0; cursor: pointer;
  background: rgba(239,68,68,.92); color: #fff; display: grid; place-items: center;
  box-shadow: 0 10px 30px -8px rgba(239,68,68,.7); transition: transform .2s, background .2s;
}
.video-card:hover .video-play { transform: translate(-50%,-50%) scale(1.08); background: #ef4444; }
.video-bar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap; justify-content: center;
  padding: 12px 18px; background: #060a14; color: #cbd5e1; font-family: var(--font-display);
  font-weight: 700; font-size: clamp(.62rem,1.6vw,.85rem);
}
.video-yt { color: #f8fafc; font-family: var(--font-body); font-weight: 600; }

/* =========================================================
   Tarjetas genéricas / iconos
   ========================================================= */
.icon-tile {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--icon-tile-bg); color: var(--cyan); margin-bottom: 16px;
}

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.card h3 { margin: 0 0 10px; font-size: 1.2rem; }
.card p { margin: 0; color: var(--text-muted); font-size: .95rem; }

/* Beneficios */
.benefits-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.benefit {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 22px 24px;
  transition: border-color .2s, transform .2s;
}
.benefit:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.benefit h4 { margin: 0 0 4px; font-size: 1.05rem; }
.benefit p { margin: 0; color: var(--text-muted); font-size: .92rem; }
.check-circle {
  flex: 0 0 auto; width: 26px; height: 26px; border-radius: 8px; margin-top: 2px;
  background: var(--icon-tile-bg); position: relative;
}
.check-circle::after {
  content: ""; position: absolute; left: 9px; top: 5px; width: 6px; height: 11px;
  border: solid var(--cyan); border-width: 0 2px 2px 0; transform: rotate(45deg);
}

/* Características */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: transform .2s, border-color .2s, box-shadow .2s;
}
.feature:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.feature h3 { margin: 0 0 8px; font-size: 1.12rem; }
.feature p { margin: 0; color: var(--text-muted); font-size: .92rem; }
.feature.is-highlight { border-color: var(--cyan); box-shadow: 0 0 0 1px var(--cyan), 0 18px 40px -22px rgba(34,211,238,.5); }

/* =========================================================
   Flujo de trabajo (timeline)
   ========================================================= */
.timeline { list-style: none; margin: 0; padding: 0; position: relative; max-width: 960px; margin-inline: auto; }
.timeline::before {
  content: ""; position: absolute; left: 19px; top: 12px; bottom: 12px; width: 2px;
  background: linear-gradient(var(--border-strong), transparent);
}
.step { position: relative; padding-left: 62px; margin-bottom: 40px; }
.step-head { display: flex; gap: 16px; align-items: flex-start; }
.step-num {
  position: absolute; left: 0; top: 0; width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center; font-family: var(--font-display); font-weight: 700;
  background: var(--surface); border: 1px solid var(--border-strong); color: var(--cyan);
  font-size: .95rem;
}
.step h3 { margin: 0 0 4px; font-size: 1.2rem; }
.step-head p { margin: 0; color: var(--text-muted); }
.step-media { margin-top: 20px; }

/* =========================================================
   Marco de capturas de la aplicación
   ========================================================= */
.mockup-frame {
  margin: 0; max-width: 820px; margin-inline: auto;
  background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: 12px; overflow: hidden; box-shadow: var(--shadow);
}
/* aspect-ratio reserva el alto antes de que cargue la imagen (lazy),
   así el layout no crece y los anclas (#precios, etc.) apuntan bien */
.mockup-frame img { display: block; width: 100%; height: auto; aspect-ratio: 1270 / 838; }

/* ¿Qué es? layout */
.whatis-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; margin-top: 40px; }
.whatis-text .mini-title { margin: 26px 0 10px; font-size: 1.5rem; }
.whatis-text .mini-title:first-child { margin-top: 0; }
.dot-list { margin: 0 0 8px; padding-left: 0; list-style: none; }
.dot-list li { position: relative; padding-left: 20px; margin-bottom: 10px; color: var(--text-muted); font-size: .95rem; }
.dot-list li::before { content: ""; position: absolute; left: 4px; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); }

/* =========================================================
   Precios
   ========================================================= */
.pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; max-width: 900px; margin: 0 auto; }
.price-card {
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: 18px; padding: 34px; transition: transform .2s;
}
.price-card:hover { transform: translateY(-4px); }
.price-card.is-featured { border-color: var(--cyan); box-shadow: 0 0 0 1px var(--cyan), 0 24px 60px -30px rgba(34,211,238,.6); }
.badge { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .8px; padding: 5px 12px; border-radius: 999px; margin-bottom: 16px; }
.badge-cyan { background: rgba(34,211,238,.14); color: var(--cyan); }
.badge-reco { background: rgba(34,211,238,.18); color: var(--cyan); }
.badge-purple { background: rgba(124,58,237,.18); color: var(--purple-2); }
.price-card h3 { margin: 0 0 8px; font-size: 1.4rem; }
.price-tagline { color: var(--text-muted); margin: 0 0 18px; font-size: .95rem; }
.price { display: flex; align-items: baseline; gap: 8px; margin-bottom: 22px; }
.price-amount { font-size: 2.6rem; font-weight: 700; }
.price-unit { color: var(--text-muted); font-size: 1rem; }
.price-old { color: var(--text-dim); text-decoration: line-through; font-size: 1.35rem; font-weight: 600; }
.price-off {
  align-self: center; background: var(--cyan); color: #04121a;
  font-weight: 700; font-size: .78rem; letter-spacing: .4px; padding: 4px 10px;
  border-radius: 999px; box-shadow: 0 6px 16px -8px rgba(34,211,238,.8);
}
.price-subnote { margin: -14px 0 22px; color: var(--text-muted); font-size: .82rem; }
.price-list { list-style: none; margin: 0 0 26px; padding: 0; }
.price-list li { position: relative; padding-left: 28px; margin-bottom: 12px; color: var(--text); font-size: .95rem; }
.price-list li::before {
  content: ""; position: absolute; left: 4px; top: 6px; width: 6px; height: 11px;
  border: solid var(--cyan); border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.pricing-note { text-align: center; color: var(--text-muted); max-width: 660px; margin: 34px auto 0; font-size: .95rem; }

/* =========================================================
   Changelog
   ========================================================= */
.changelog { max-width: 860px; margin: 0 auto; }
.cl-tabs { display: flex; gap: 10px; justify-content: center; margin-bottom: 26px; flex-wrap: wrap; }
.cl-tab {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-weight: 700; font-size: 1rem;
  background: var(--surface); color: var(--text-muted);
  border: 1px solid var(--border); border-radius: 999px; padding: 10px 22px;
  cursor: pointer; transition: color .2s, border-color .2s, background .2s;
}
.cl-tab:hover { color: var(--text); border-color: var(--border-strong); }
.cl-tab.active { color: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 0 1px var(--cyan); }
.badge-new { font-family: var(--font-body); font-size: .62rem; font-weight: 700; letter-spacing: .8px; background: rgba(34,211,238,.16); color: var(--cyan); padding: 3px 8px; border-radius: 999px; }

.cl-panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); }
.cl-body { display: grid; grid-template-columns: 1.15fr .85fr; gap: 30px; align-items: start; }
.cl-panel:not(:has(.cl-shot)) .cl-body { grid-template-columns: 1fr; }
.cl-version-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.cl-version-head h3 { margin: 0; font-size: 1.6rem; }
.cl-latest { font-size: .72rem; font-weight: 700; letter-spacing: .6px; background: rgba(124,58,237,.18); color: var(--purple-2); padding: 4px 10px; border-radius: 999px; }
.cl-list { list-style: none; margin: 0; padding: 0; }
.cl-list li { position: relative; padding-left: 30px; margin-bottom: 16px; color: var(--text-muted); font-size: .95rem; }
.cl-list li strong { color: var(--text); }
.cl-list li::before {
  content: ""; position: absolute; left: 6px; top: 6px; width: 6px; height: 12px;
  border: solid var(--cyan); border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.cl-shot { align-self: center; }

/* Etiquetas "Nuevo en v3.0" */
.feature-tag, .step-tag {
  display: inline-block; margin-top: 8px; font-size: .68rem; font-weight: 700; letter-spacing: .5px;
  background: rgba(34,211,238,.16); color: var(--cyan); padding: 3px 9px; border-radius: 999px;
  vertical-align: middle;
}
.step-tag { margin-top: 0; margin-left: 6px; }

/* =========================================================
   FAQ
   ========================================================= */
.faq { display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.faq-q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  color: var(--text); font-size: 1rem; font-weight: 700; padding: 18px 22px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-chevron { color: var(--text-muted); transition: transform .3s ease; flex: 0 0 auto; }
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-a p { margin: 0; padding: 0 22px 20px; color: var(--text-muted); font-size: .95rem; }

/* =========================================================
   Contacto
   ========================================================= */
.contact-card {
  max-width: 720px; margin: 30px auto 0; background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; padding: 44px 40px; box-shadow: var(--shadow);
}
.contact-lead { font-size: clamp(1.4rem, 3vw, 2rem); margin: 0 0 8px; line-height: 1.15; }
.contact-strong { font-weight: 700; margin: 0 0 14px; }
.contact-checks {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px 24px;
  max-width: 560px; margin: 0 auto 26px;
}
.contact-checks span { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: .95rem; }
.chk { width: 22px; height: 22px; border-radius: 50%; background: var(--icon-tile-bg); position: relative; flex: 0 0 auto; }
.chk::after { content: ""; position: absolute; left: 8px; top: 4px; width: 5px; height: 10px; border: solid var(--cyan); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.contact-note { color: var(--text-muted); font-size: .88rem; margin: 16px auto 0; max-width: 480px; }

/* Formulario de contacto */
.contact-form { max-width: 560px; margin: 26px auto 0; text-align: left; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: .9rem; font-weight: 600; color: var(--text); margin-bottom: 16px; }
.field-label { display: inline-block; }
.field .req { color: var(--cyan); margin-left: 2px; }
.contact-form input,
.contact-form textarea {
  font-family: var(--font-body); font-size: .95rem; font-weight: 400; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 11px 14px; width: 100%; transition: border-color .2s, box-shadow .2s;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--text-dim); }
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34, 211, 238, .18);
}
.contact-form textarea { resize: vertical; min-height: 110px; }
.contact-form .btn-block { margin-top: 4px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.form-status { margin: 14px 0 0; font-size: .92rem; font-weight: 600; text-align: center; }
.form-status.is-success { color: #22c55e; }
.form-status.is-error { color: #f87171; }
.form-status.is-info { color: var(--text-muted); }

/* =========================================================
   Footer
   ========================================================= */
.site-footer { background: var(--bg-alt); border-top: 1px solid var(--border); padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; padding-bottom: 40px; }
.footer-brand .brand-name { color: var(--text); max-width: none; }
.footer-brand p { color: var(--text-muted); margin: 14px 0 0; font-size: .92rem; }
.footer-col h4 { font-size: .78rem; letter-spacing: 1px; color: var(--text-dim); margin: 6px 0 16px; }
.footer-col a { display: block; color: var(--text-muted); margin-bottom: 12px; font-size: .92rem; transition: color .2s; }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom { border-top: 1px solid var(--border); padding: 22px 0; text-align: center; color: var(--text-dim); font-size: .88rem; }

/* =========================================================
   Checkout / pasarela de pago (checkout.html)
   ========================================================= */
.checkout-header { background: var(--header-grad); border-bottom: 1px solid rgba(255,255,255,.08); }
.checkout-header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.checkout-header .brand-name { color: #fff; max-width: none; }
.checkout-header-actions { display: flex; align-items: center; gap: 14px; }
.checkout-back { color: rgba(255,255,255,.9); font-weight: 600; font-size: .92rem; }
.checkout-back:hover { color: #fff; }

.checkout-wrap { width: min(100% - 40px, 960px); margin: 0 auto; padding: 32px 0 90px; }
.checkout-backlink { display: inline-flex; align-items: center; gap: 8px; color: var(--text-muted); font-weight: 600; font-size: .92rem; margin-bottom: 22px; transition: color .2s; }
.checkout-backlink:hover { color: var(--cyan); }
.checkout-back-btn { display: block; width: 100%; margin-top: 16px; background: none; border: 1px solid var(--border-strong); color: var(--text-muted); border-radius: 10px; padding: 11px; font-family: var(--font-body); font-weight: 600; font-size: .92rem; cursor: pointer; transition: color .2s, border-color .2s; }
.checkout-back-btn:hover { color: var(--text); border-color: var(--cyan); }
.checkout-eyebrow { text-align: center; color: var(--cyan); font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; font-size: .78rem; margin: 0 0 10px; }
.checkout-title { text-align: center; font-size: clamp(1.9rem, 4.5vw, 2.8rem); margin: 0 0 12px; }
.checkout-sub { text-align: center; color: var(--text-muted); max-width: 620px; margin: 0 auto 42px; }

.checkout-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 24px; align-items: start; }
.checkout-card { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 30px; box-shadow: var(--shadow); }
.checkout-h { font-size: 1.15rem; margin: 0 0 16px; }

.order-summary .badge { margin-bottom: 12px; }
.summary-name { margin: 0 0 8px; font-size: 1.5rem; }
.summary-desc { color: var(--text-muted); margin: 0 0 18px; font-size: .95rem; }
.summary-list { list-style: none; margin: 0 0 22px; padding: 0; }
.summary-list li { position: relative; padding-left: 28px; margin-bottom: 12px; color: var(--text); font-size: .95rem; }
.summary-list li::before { content: ""; position: absolute; left: 4px; top: 6px; width: 6px; height: 11px; border: solid var(--cyan); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.summary-total { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-top: 1px solid var(--border); padding-top: 18px; }
.summary-total-label { color: var(--text-muted); font-weight: 600; }
.summary-total-price { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.summary-total-price strong { font-size: 2.2rem; }

.pay-methods .pay-intro { color: var(--text-muted); font-size: .95rem; margin: 0 0 20px; }
.pay-intro strong { color: var(--text); }
.pay-btn {
  display: flex; align-items: center; justify-content: center; gap: 12px; width: 100%;
  padding: 15px 18px; margin-bottom: 14px; border: 0; border-radius: 12px;
  font-family: var(--font-body); font-weight: 700; font-size: 1rem; cursor: pointer;
  transition: transform .15s ease, filter .2s ease, box-shadow .2s ease;
}
.pay-btn:hover { transform: translateY(-2px); filter: brightness(1.04); }
.pay-btn:disabled { opacity: .6; cursor: default; transform: none; }
.pay-paypal { background: #ffc439; color: #012169; box-shadow: 0 10px 24px -12px rgba(255,196,57,.8); }
.pay-mp { background: #009ee3; color: #fff; box-shadow: 0 10px 24px -12px rgba(0,158,227,.8); }
.pay-logo { font-weight: 800; letter-spacing: -.3px; }
.pay-logo-paypal { color: #003087; }
.pay-logo-paypal span { color: #0070ba; }
.pay-logo-mp { color: #fff; }
.pay-status { margin: 6px 0 0; font-size: .92rem; font-weight: 600; text-align: center; }
.pay-status.is-info { color: var(--text-muted); }
.pay-status.is-error { color: #f87171; }
.pay-secure { margin: 16px 0 0; color: var(--text-dim); font-size: .82rem; text-align: center; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 960px) {
  .cards-3, .features-grid { grid-template-columns: 1fr 1fr; }
  .whatis-grid { grid-template-columns: 1fr; }
  .cl-body { grid-template-columns: 1fr; }
  .cl-shot { max-width: 560px; }
}
@media (max-width: 1200px) {
  .nav {
    position: fixed; inset: 56px 0 auto 0; flex-direction: column; gap: 0;
    background: var(--header-grad); margin: 0; padding: 10px 20px 20px;
    transform: translateY(-140%); transition: transform .3s ease; box-shadow: 0 20px 40px -12px rgba(0,0,0,.5);
  }
  .nav.open { transform: translateY(0); }
  .nav a { padding: 14px 4px; border-bottom: 1px solid rgba(255,255,255,.1); }
  .menu-toggle { display: block; }
  .brand-name { max-width: none; font-size: .95rem; }
}
@media (max-width: 680px) {
  .section { padding: 64px 0; }
  .cards-3, .features-grid, .benefits-grid, .pricing-grid, .contact-checks, .footer-grid, .form-grid, .checkout-grid { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; }
  .cl-panel { padding: 22px; }
}
@media (max-width: 420px) {
  .brand-name { font-size: .8rem; max-width: 110px; }
}