/* ============================================================
   sergiogalos.es — Landing Consultor SEO · Sergio Galo's
   Paleta: papel #F6F7F9 · tinta #0B1526 · marino #16294B
           azul SERP #2140E8 · niebla #E3E7EE · verde #0E8A5F
   Tipos:  Bricolage Grotesque (display) · Instrument Sans (texto)
           IBM Plex Mono (utilidad / vernáculo SERP)
   ============================================================ */

:root {
  --papel: #f6f7f9;
  --blanco: #ffffff;
  --tinta: #0b1526;
  --marino: #16294b;
  --marino-suave: #e9eef6;
  --azul: #2140e8;
  --azul-oscuro: #1730b8;
  --niebla: #e3e7ee;
  --gris: #5b6472;
  --verde: #0e8a5f;
  --radius: 18px;
  --font-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --font-body: "Instrument Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "Cascadia Code", Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--tinta);
  background: var(--papel);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

img { max-width: 100%; display: block; }

a { color: var(--azul); text-decoration: none; }

::selection { background: var(--azul); color: #fff; }

:focus-visible {
  outline: 2px solid var(--azul);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 48px);
}

/* ---------- Nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 247, 249, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

.nav.scrolled { border-bottom-color: var(--niebla); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 18px;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--tinta);
}

.wordmark .tld { color: var(--azul); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a:not(.btn) {
  color: var(--gris);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:not(.btn):hover { color: var(--tinta); }

@media (max-width: 720px) {
  .nav-links li.nav-item { display: none; }
}

/* ---------- Botones ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 26px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.btn-primary {
  background: var(--azul);
  color: #fff;
}

.btn-primary:hover {
  background: var(--azul-oscuro);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--tinta);
  border: 1px solid var(--niebla);
}

.btn-ghost:hover { border-color: var(--tinta); }

.btn-sm { padding: 10px 20px; font-size: 0.92rem; }

/* ---------- Hero ---------- */

.hero { overflow: hidden; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  padding-block: clamp(48px, 7vw, 96px) 0;
}

.hero-grid > * { min-width: 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gris);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--azul);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.8vw, 4.4rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero h1 em {
  font-style: normal;
  color: var(--azul);
}

.hero-sub {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  color: var(--gris);
  max-width: 46ch;
  margin-bottom: 36px;
}

/* Barra de búsqueda — elemento firma */

.searchbar {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--blanco);
  border: 1px solid var(--niebla);
  border-radius: 999px;
  padding: 16px 24px;
  max-width: min(480px, 100%);
  box-shadow: 0 8px 30px rgba(11, 21, 38, 0.06);
  margin-bottom: 20px;
}

.searchbar svg {
  flex-shrink: 0;
  color: var(--gris);
}

.query {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--tinta);
  white-space: nowrap;
  overflow: hidden;
  min-width: 0;
}

.caret {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--azul);
  vertical-align: text-bottom;
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
  padding-bottom: clamp(48px, 6vw, 80px);
}

/* Figura del hero */

.hero-figure {
  position: relative;
  align-self: end;
}

.hero-figure .arch {
  position: absolute;
  inset: 12% 4% 0 4%;
  background: linear-gradient(180deg, var(--marino-suave), #dde6f2);
  border-radius: 999px 999px 0 0;
}

.hero-figure img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 12px 32px rgba(11, 21, 38, 0.18));
}

/* Snippet SERP flotante sobre la foto */

.snippet {
  position: absolute;
  z-index: 2;
  left: max(-30px, -4vw);
  bottom: 14%;
  background: var(--blanco);
  border: 1px solid var(--niebla);
  border-radius: 14px;
  padding: 16px 20px;
  box-shadow: 0 16px 40px rgba(11, 21, 38, 0.12);
  max-width: 300px;
}

.snippet-url {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gris);
  margin-bottom: 6px;
}

.snippet-url::before {
  content: "";
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--azul);
  flex-shrink: 0;
}

.snippet-title {
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--azul);
  line-height: 1.35;
  margin-bottom: 8px;
}

.rank-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--verde);
  background: rgba(14, 138, 95, 0.09);
  border-radius: 999px;
  padding: 4px 12px;
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-figure { max-width: min(420px, 100%); margin-inline: auto; width: 100%; }
  .snippet { left: 0; }
  .hero-ctas { padding-bottom: 12px; }
  .hero { padding-bottom: 0; }
}

/* ---------- Secciones ---------- */

.section { padding-block: clamp(72px, 9vw, 120px); }

.section-head {
  max-width: 640px;
  margin-bottom: clamp(40px, 5vw, 64px);
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.section-head p { color: var(--gris); }

/* Servicios — tarjetas con vernáculo de resultado de búsqueda */

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--blanco);
  border: 1px solid var(--niebla);
  border-radius: var(--radius);
  padding: 28px 30px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(11, 21, 38, 0.08);
}

.service-url {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--gris);
  margin-bottom: 10px;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--azul);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.98rem;
  color: var(--gris);
}

@media (max-width: 720px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* Método — secuencia real, numeración justificada */

.method { background: var(--blanco); border-block: 1px solid var(--niebla); }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(24px, 3vw, 40px);
}

.step { position: relative; }

.step-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--azul);
  display: block;
  margin-bottom: 14px;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.step p {
  font-size: 0.95rem;
  color: var(--gris);
}

.step::before {
  content: "";
  display: block;
  height: 1px;
  background: var(--niebla);
  margin-bottom: 20px;
}

.step:first-child::before { background: var(--azul); }

@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 540px) {
  .steps { grid-template-columns: 1fr; }
}

/* FAQ */

.faq-list {
  max-width: 760px;
  display: grid;
  gap: 12px;
}

.faq-item {
  background: var(--blanco);
  border: 1px solid var(--niebla);
  border-radius: 14px;
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1.02rem;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--azul);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.faq-item[open] summary::after { transform: rotate(45deg); }

.faq-item .faq-body {
  padding: 0 24px 22px;
  color: var(--gris);
  font-size: 0.98rem;
  max-width: 62ch;
}

/* ---------- CTA final ---------- */

.cta-final {
  background: var(--marino);
  color: #fff;
  border-radius: clamp(20px, 3vw, 32px);
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 80px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-final::before {
  content: "";
  position: absolute;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(33, 64, 232, 0.35), transparent 70%);
  top: -240px;
  right: -140px;
  pointer-events: none;
}

.cta-final h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 18px;
}

.cta-final p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 52ch;
  margin: 0 auto 36px;
}

.cta-final .btn-primary { font-size: 1.05rem; }

.cta-email {
  display: block;
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.cta-email a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Footer ---------- */

.footer {
  padding-block: 36px 44px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--gris);
}

/* ---------- Reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .caret { animation: none; }
  .btn, .service-card { transition: none; }
}