/* ==========================================================
   Bautista Nicoletti · Landing
   Basado en la Guía de marca v1.3 (paleta petróleo)
   ========================================================== */

:root {
  /* Paleta (no agregar otros colores) */
  --profundo: #0E2A33;
  --petroleo: #1F4E5A;
  --medio: #4F8593;
  --claro: #A9C8CF;
  --niebla: #EEF3F3;

  --fondo: var(--profundo);
  --texto: var(--niebla);

  /* Tipografías */
  --font-titulo: 'DM Serif Display', Georgia, serif;
  --font-texto: 'DM Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, Consolas, monospace;

  /* Degradados (siempre a 160°, uno por elemento) */
  --grad-fondo: linear-gradient(160deg, #0E2A33, #122F39 50%, #1F4E5A);
  --grad-tarjeta: linear-gradient(160deg, #1F4E5A, #0E2A33);
  --grad-boton: linear-gradient(160deg, #EEF3F3, #A9C8CF);
  --grad-linea: linear-gradient(90deg, transparent, #4F8593, transparent);

  /* Medidas */
  --radio: 10px;
  --radio-lg: 12px;
  --max: 1120px;
  --gutter: 20px;
  --topbar-h: 64px;
}

/* ---------- Base ---------- */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--topbar-h) + 12px);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--fondo);
  background-image: var(--grad-fondo);
  color: var(--texto);
  font-family: var(--font-texto);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3 {
  margin: 0;
  font-family: var(--font-titulo);
  font-weight: 400; /* DM Serif Display no tiene negrita */
  line-height: 1.08;
  color: var(--niebla);
  text-wrap: balance;
}

h1 { font-size: 36px; }
h2 { font-size: 28px; }
h3 { font-size: 22px; line-height: 1.15; }

p { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

a { color: inherit; }

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

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.container--narrow { max-width: 760px; }

/* ---------- Componentes de marca ---------- */

/* Etiqueta: Mono, mayúsculas, recuadro con borde fino */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--claro);
  border: 1px solid var(--medio);
  border-radius: 6px;
  padding: 7px 10px;
}

/* Números y datos: Mono con fondo Claro y texto Profundo */
.num {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 13px;
  line-height: 1;
  letter-spacing: 0.04em;
  background: var(--claro);
  color: var(--profundo);
  border-radius: 6px;
  padding: 6px 8px;
}

.lead {
  font-size: 18px;
  color: var(--claro);
  max-width: 60ch;
}

.card {
  background: var(--grad-tarjeta);
  border: 1px solid var(--petroleo);
  border-radius: var(--radio-lg);
  padding: 26px 24px;
}

.card--plain {
  background: transparent;
}

.card h3 { margin: 16px 0 8px; }
.card h3:first-child { margin-top: 0; }
.card p { color: var(--claro); }

.line {
  height: 1px;
  max-width: var(--max);
  margin: 0 auto;
  background: var(--grad-linea);
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 15px 28px;
  border: 0;
  border-radius: var(--radio);
  background: var(--grad-boton);
  color: var(--profundo);
  font-family: var(--font-texto);
  font-weight: 500;
  font-size: 17px;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}

.btn:hover { transform: translateY(-1px); filter: brightness(1.03); }
.btn:active { transform: translateY(0); }

.btn span { transition: transform 0.15s ease; }
.btn:hover span { transform: translateX(3px); }

.btn--small {
  min-height: 40px;
  padding: 9px 16px;
  font-size: 15px;
}

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

.btn--outline:hover { background: var(--petroleo); filter: none; }

/* Variante para la sección clara: mismo peso visual, en Profundo */
.btn--dark {
  background: var(--profundo);
  color: var(--niebla);
}

.btn--dark:hover { background: var(--petroleo); filter: none; }

.cta-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  margin-top: 32px;
}

.cta-block .btn { width: 100%; }

.cta-block--section { margin-top: 44px; }

.microcopy {
  font-size: 15px;
  color: var(--claro);
}

.text-link {
  color: var(--niebla);
  text-decoration: underline;
  text-decoration-color: var(--medio);
  text-underline-offset: 4px;
  transition: text-decoration-color 0.15s ease;
}

.text-link:hover { text-decoration-color: var(--claro); }

.note {
  margin-top: 24px;
  font-size: 15px;
  color: var(--claro);
}

.note--center { text-align: center; }

/* ---------- Topbar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 42, 51, 0.88);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(31, 78, 90, 0.6);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: var(--topbar-h);
}

.topbar__brand {
  font-family: var(--font-titulo);
  font-size: 21px;
  text-decoration: none;
  white-space: nowrap;
}

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

.hero {
  padding: 48px 0 64px;
}

.hero__grid {
  display: grid;
  gap: 48px;
}

.hero h1 {
  margin: 22px 0 18px;
  max-width: 14ch;
}

.author {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 36px;
}

.author img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid var(--petroleo);
  object-fit: cover;
}

.author p {
  display: flex;
  flex-direction: column;
  font-size: 15px;
  line-height: 1.35;
}

.author strong { font-weight: 500; }
.author span { color: var(--claro); }

/* Ilustración del calendario */
.mock {
  position: relative;
  max-width: 420px;
  width: 100%;
  margin: 0 auto;
  padding-top: 40px;
}

.mock__notice {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--niebla);
  color: var(--profundo);
  border-radius: var(--radio);
  font-size: 14px;
  line-height: 1.3;
}

.mock__notice p { display: flex; flex-direction: column; }
.mock__notice strong { font-weight: 500; }
.mock__notice span { color: var(--petroleo); }

.mock__dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--petroleo);
}

.mock__cal { padding: 22px 20px; }

.mock__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 8px 0 18px;
}

.mock__day {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--claro);
}

.mock__slots { display: grid; gap: 10px; }

.mock__slots li {
  display: grid;
  grid-template-columns: 52px 1fr;
  align-items: center;
  gap: 12px;
}

.mock__time {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 13px;
  color: var(--claro);
}

.mock__slot {
  padding: 12px 14px;
  border: 1px solid var(--petroleo);
  border-radius: 8px;
  font-size: 15px;
  color: var(--niebla);
}

.mock__slot--free {
  border-style: dashed;
  color: var(--claro);
}

.mock__slots .is-new .mock__slot {
  background: var(--claro);
  border-color: var(--claro);
  color: var(--profundo);
  font-weight: 500;
}

.mock__slots .is-new .mock__time { color: var(--niebla); }

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

.section { padding: 72px 0; }
.section--tight { padding: 56px 0; }

.section__head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 36px;
}

.section__head h2 { max-width: 20ch; }

.section__head--center {
  align-items: center;
  text-align: center;
}

.section__head--center .lead { margin: 0 auto; }

.grid {
  display: grid;
  gap: 16px;
}

.punchline {
  margin-top: 40px;
  font-family: var(--font-titulo);
  font-size: 26px;
  line-height: 1.15;
  color: var(--niebla);
}

.subhead { margin: 52px 0 20px; }

/* Lista con tilde */
.checklist {
  display: grid;
  gap: 12px;
}

.checklist li {
  position: relative;
  padding: 14px 16px 14px 46px;
  border: 1px solid var(--petroleo);
  border-radius: var(--radio);
}

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 16px;
  top: 14px;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--claro);
}

.checklist--single li {
  border: 0;
  padding: 0 0 0 28px;
}

.checklist--single li::before { left: 0; top: 0; }

.crosslist { display: grid; gap: 12px; }

.crosslist li {
  position: relative;
  padding-left: 28px;
  color: var(--claro);
}

.crosslist li::before {
  content: "✕";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  color: var(--claro);
}

.fit h3 { margin-bottom: 18px; }
.fit .checklist--single { gap: 12px; }

/* ---------- Sección clara (única) ---------- */

.section--light {
  background: var(--niebla);
  color: var(--profundo);
}

.section--light h2,
.section--light h3 { color: var(--profundo); }

.section--light .lead,
.section--light p { color: var(--petroleo); }

.section--light .tag {
  color: var(--petroleo);
  border-color: var(--petroleo);
}

.takeaways li {
  padding: 24px 0;
  border-top: 1px solid var(--claro);
}

.takeaways h3 { margin: 14px 0 6px; }

/* ---------- Sobre mí ---------- */

.about {
  display: grid;
  gap: 32px;
}

.about__photo {
  width: 160px;
  height: 160px;
  border-radius: var(--radio-lg);
  border: 1px solid var(--petroleo);
  object-fit: cover;
}

.about__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.about__copy h2 { margin-bottom: 4px; max-width: 18ch; }
.about__copy p { color: var(--claro); max-width: 58ch; }
.about__copy .text-link { margin-top: 6px; }

/* ---------- FAQ ---------- */

.faq { border-top: 1px solid var(--petroleo); }

.faq__item { border-bottom: 1px solid var(--petroleo); }

.faq__item summary {
  position: relative;
  padding: 20px 44px 20px 0;
  font-weight: 500;
  font-size: 18px;
  cursor: pointer;
  list-style: none;
}

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

.faq__item summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--claro);
  transition: transform 0.2s ease;
}

.faq__item[open] summary::after { transform: translateY(-50%) rotate(45deg); }

.faq__item p {
  padding: 0 0 22px;
  color: var(--claro);
  max-width: 62ch;
}

/* ---------- Reserva ---------- */

.booking { padding-bottom: 96px; }

.booking__frame {
  max-width: 1000px;
  margin: 0 auto;
  border: 1px solid var(--petroleo);
  border-radius: var(--radio-lg);
  background: var(--profundo);
  overflow: hidden;
}

.booking__cal {
  position: relative;
  min-height: 560px;
  width: 100%;
}

/* El calendario tapa el texto "Cargando…" en cuanto aparece */
.booking__cal > :not(.booking__loading) {
  position: relative;
  z-index: 1;
}

.booking__loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--claro);
}

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

.footer {
  border-top: 1px solid var(--petroleo);
  padding: 40px 0 120px;
}

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

.footer__brand {
  font-family: var(--font-titulo);
  font-size: 24px;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.footer__links a {
  color: var(--claro);
  text-decoration: none;
}

.footer__links a:hover { color: var(--niebla); }

.footer__legal {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--claro);
}

/* ---------- CTA flotante (solo móvil) ---------- */

.float-cta {
  position: fixed;
  left: var(--gutter);
  right: var(--gutter);
  bottom: 16px;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  border-radius: var(--radio);
  background: var(--grad-boton);
  color: var(--profundo);
  font-weight: 500;
  font-size: 17px;
  text-decoration: none;
  border: 1px solid var(--profundo);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.float-cta.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* ---------- Escritorio ---------- */

@media (min-width: 640px) {
  .cta-block .btn { width: auto; }
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .checklist { grid-template-columns: repeat(2, 1fr); }
  .checklist--single { grid-template-columns: 1fr; }
  .takeaways { column-gap: 48px; }
}

@media (min-width: 900px) {
  :root { --gutter: 32px; --topbar-h: 72px; }

  h1 { font-size: 56px; }
  h2 { font-size: 36px; }
  h3 { font-size: 24px; }

  .hero { padding: 96px 0 112px; }

  .hero__grid {
    grid-template-columns: 1.15fr 1fr;
    align-items: center;
    gap: 64px;
  }

  .lead { font-size: 19px; }

  .section { padding: 112px 0; }
  .section--tight { padding: 88px 0; }
  .section__head { margin-bottom: 48px; }

  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .checklist { grid-template-columns: repeat(3, 1fr); }
  .checklist--single { grid-template-columns: 1fr; }

  .punchline { font-size: 32px; }

  .about {
    grid-template-columns: 240px 1fr;
    align-items: center;
    gap: 56px;
  }

  .about__photo { width: 240px; height: 240px; }

  .booking__cal { min-height: 640px; }

  .footer { padding-bottom: 40px; }

  .footer__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .float-cta { display: none; }
}