/* ============================================================
   IN — inpresencia.com
   Landing page styles — editorial system v2
   Brandbook v2.1 — paleta y tipografía oficiales
   ============================================================ */

/* ---- Fuentes locales ------------------------------------- */

/* Lovan — fuente de marca, solo para el logotipo "in" y palabras-umbral */
@font-face {
  font-family: 'Lovan';
  src: url('assets/fonts/Lovan.ttf') format('truetype');
  font-weight: normal;
  font-style: italic;
  font-display: swap;
}

/* Inter variable — fuente funcional para todo lo demás */
@font-face {
  font-family: 'Inter';
  src: url('assets/fonts/Inter-Variable.ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('assets/fonts/Inter-Variable-Italic.ttf') format('truetype');
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

/* ---- Reset & base ---------------------------------------- */

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

:root {
  /* Paleta oficial IN — Brandbook v2.1 */
  --power:     #171717;
  --soul:      #F3F3F3;
  --gray-mid:  #9C9C9C;
  --gray-dark: #2a2a2a;
  --gray-deep: #1e1e1e;

  /* Aliases funcionales */
  --bg:        var(--power);
  --bg-mid:    var(--gray-deep);
  --text:      var(--soul);
  --muted:     var(--gray-mid);
  --border:    var(--gray-dark);

  /* Tipografía oficial */
  --font-brand: 'Lovan', Georgia, serif;
  --font-head:  'Inter', system-ui, sans-serif;
  --font-body:  'Inter', system-ui, sans-serif;

  /* Espaciado base */
  --px: clamp(28px, 6vw, 80px);
  --nav-h: 56px;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---- Animaciones ----------------------------------------- */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Clases de animación en scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

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

.reveal-slow {
  opacity: 0;
  transition: opacity 1.4s ease;
}

.reveal-slow.visible {
  opacity: 1;
}

/* ---- Layout base ----------------------------------------- */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--px);
}

section {
  padding: 120px 0;
}

/* ---- NAVEGACIÓN ------------------------------------------ */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--px);
  transition: background 0.5s ease, backdrop-filter 0.5s ease;
}

.site-nav.scrolled {
  background: rgba(23, 23, 23, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-logo {
  font-family: 'Lovan', serif;
  font-style: italic;
  font-size: 2rem;
  color: var(--soul);
  text-decoration: none;
  line-height: 1;
  transition: opacity 0.3s ease;
}

.nav-logo:hover {
  opacity: 0.6;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--soul);
}

.nav-cta {
  font-size: 10px !important;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--soul) !important;
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 8px 20px;
  border-radius: 100px;
  transition: background 0.4s ease, border-color 0.4s ease !important;
}

.nav-cta:hover {
  background: var(--soul) !important;
  color: var(--power) !important;
  border-color: var(--soul) !important;
}

/* ---- HERO ------------------------------------------------ */

#hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--nav-h);
  padding-bottom: 96px;
  position: relative;
  background-image: url('assets/img/hero-bg.png');
  background-size: cover;
  background-position: center;
}

#hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(23, 23, 23, 0.45);
  pointer-events: none;
}

#hero .container {
  position: relative;
  z-index: 1;
}

.hero-sup {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 32px;
  animation: fadeIn 1.2s ease both;
  animation-delay: 0.1s;
}

/* Logo IN — imagen oficial del brandbook */
.brand-mark {
  height: clamp(52px, 10vw, 100px);
  width: auto;
  display: block;
  margin-bottom: 32px;
  animation: fadeUp 1.1s ease both;
  animation-delay: 0.2s;
}

/* Tagline — Inter Thin, minúscula total, masiva */
.hero-tagline {
  font-family: var(--font-head);
  font-size: clamp(2.8rem, 7vw, 6.5rem);
  font-weight: 100;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--soul);
  margin-bottom: 56px;
  animation: fadeUp 1.1s ease both;
  animation-delay: 0.35s;
  text-transform: lowercase;
  max-width: 14ch;
}

/* ---- Audio offer ----------------------------------------- */

.audio-offer {
  animation: fadeUp 1.1s ease both;
  animation-delay: 0.6s;
  max-width: 480px;
}

.audio-title {
  font-family: var(--font-head);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  font-weight: 100;
  font-style: italic;
  color: var(--soul);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
  text-transform: lowercase;
}

.audio-meta {
  font-size: 10px;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.capture-form {
  display: flex;
  gap: 0;
  max-width: 420px;
}

.capture-form input[type="email"] {
  flex: 1;
  background: transparent;
  border: 1px solid var(--border);
  border-right: none;
  border-radius: 100px 0 0 100px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 300;
  padding: 13px 20px;
  outline: none;
  transition: border-color 0.4s ease;
  -webkit-appearance: none;
}

.capture-form input[type="email"]::placeholder {
  color: var(--muted);
  font-style: italic;
}

.capture-form input[type="email"]:focus {
  border-color: var(--gray-mid);
}

.capture-form button {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 0 100px 100px 0;
  color: var(--soul);
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 13px 24px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.5s ease, color 0.5s ease, border-color 0.5s ease;
}

.capture-form button:hover {
  background: var(--soul);
  color: var(--power);
  border-color: var(--soul);
}

.form-note {
  font-size: 11px;
  color: var(--muted);
  margin-top: 12px;
  font-style: italic;
}

.form-success {
  display: none;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 100;
  font-style: italic;
  color: var(--soul);
  padding: 14px 0;
  text-transform: lowercase;
  animation: fadeIn 0.8s ease both;
}

/* Tira de metadata en el hero — esquina inferior derecha */
.hero-meta-strip {
  position: absolute;
  bottom: 40px;
  right: var(--px);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  z-index: 1;
}

/* ---- Línea divisora ------------------------------------- */

.divider {
  width: 40px;
  height: 1px;
  background: var(--gray-dark);
  margin: 0 auto;
}

.section-rule {
  border: none;
  border-top: 1px solid var(--gray-dark);
  margin: 0;
  opacity: 0.6;
}

/* ---- PULLQUOTE (fragmento de texto) --------------------- */

#fragment {
  padding: 96px 0;
  background: var(--gray-deep);
}

.pullquote {
  border-left: 1px solid var(--gray-dark);
  padding-left: 32px;
  max-width: 560px;
  margin: 0;
  text-align: left;
}

.pullquote p,
.fragment-text {
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 3vw, 1.85rem);
  font-weight: 100;
  font-style: italic;
  line-height: 1.5;
  color: var(--soul);
  text-transform: lowercase;
}

.pullquote span,
.fragment-text span {
  display: block;
  margin-top: 0.6em;
  font-style: normal;
  font-weight: 400;
  font-size: 0.6em;
  color: var(--muted);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

/* ---- VIDEOS --------------------------------------------- */

#videos {
  padding-top: 0;
}

.section-label {
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 40px;
}

.videos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.video-item {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--gray-dark);
  padding: 24px 0 0;
}

.video-item:nth-child(odd) {
  padding-right: 20px;
}

.video-item:nth-child(even) {
  padding-left: 20px;
  border-left: 1px solid var(--gray-dark);
}

.ep-num {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 100;
  color: var(--gray-dark);
  line-height: 1;
  margin-bottom: 16px;
  display: block;
  letter-spacing: -0.02em;
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  background: var(--bg-mid);
}

.video-wrapper iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  border: none;
  filter: brightness(0.88);
  transition: filter 0.4s ease;
}

.video-item:hover .video-wrapper iframe {
  filter: brightness(1);
}

/* ---- MEMBRESÍA ------------------------------------------ */

#membership {
  text-align: center;
  background-image: url('assets/img/membership-bg.png');
  background-size: cover;
  background-position: center;
  position: relative;
}

.membership-copy {
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 3.5vw, 2.2rem);
  font-weight: 100;
  line-height: 1.5;
  color: var(--soul);
  max-width: 520px;
  margin: 0 auto 20px;
  text-transform: lowercase;
}

.membership-copy strong {
  font-weight: 300;
  color: var(--soul);
}

.membership-detail {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.12em;
  margin-bottom: 52px;
}

.cta-link {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--soul);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 14px 32px;
  border-radius: 100px;
  transition: background 0.4s ease, color 0.4s ease, border-color 0.4s ease;
}

.cta-link:hover {
  background: var(--soul);
  color: var(--power);
  border-color: var(--soul);
}

/* ---- FOOTER --------------------------------------------- */

footer {
  padding: 64px 0 40px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .footer-logo {
  display: block;
  font-family: 'Lovan', serif;
  font-style: italic;
  font-size: 1.8rem;
  color: var(--soul);
  text-decoration: none;
  margin-bottom: 12px;
  opacity: 0.4;
  line-height: 1;
  transition: opacity 0.4s ease;
}

.footer-brand .footer-logo:hover {
  opacity: 0.85;
}

.footer-links {
  display: flex;
  justify-content: flex-end;
  gap: 32px;
  align-items: center;
}

.footer-links a {
  font-size: 10px;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 0.4s ease;
}

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

.footer-bottom {
  border-top: 1px solid var(--gray-dark);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copy {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ---- Responsive ----------------------------------------- */

@media (max-width: 768px) {
  section {
    padding: 80px 0;
  }

  .nav-links a:not(.nav-cta) {
    display: none;
  }

  .hero-meta-strip {
    display: none;
  }

  .capture-form {
    flex-direction: column;
    max-width: 100%;
  }

  .capture-form input[type="email"] {
    border-right: 1px solid var(--border);
    border-bottom: none;
    border-radius: 100px 100px 0 0;
  }

  .capture-form button {
    border-radius: 0 0 100px 100px;
    padding: 14px;
    text-align: center;
  }

  .videos-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .video-item {
    padding-right: 0 !important;
    padding-left: 0 !important;
    border-left: none !important;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .hero-tagline {
    font-size: clamp(2.4rem, 9vw, 4rem);
  }
}

@media (max-width: 480px) {
  .brand-mark {
    font-size: clamp(3rem, 12vw, 5rem);
  }
}

/* ---- Páginas internas (legal, gracias) ------------------- */

.page-content {
  padding: calc(var(--nav-h) + 80px) 0 120px;
  min-height: 80vh;
}

.page-content h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 100;
  color: var(--soul);
  text-transform: lowercase;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

.page-content h2 {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin: 48px 0 16px;
}

.page-content p {
  font-size: 0.95rem;
  color: var(--gray-mid);
  line-height: 1.85;
  margin-bottom: 20px;
  max-width: 660px;
}

.page-content a {
  color: var(--soul);
  opacity: 0.6;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.3s ease;
}

.page-content a:hover {
  opacity: 1;
}

.page-meta {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 64px;
}

/* ---- Página de agradecimiento ---------------------------- */

.thanks-page {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-height: calc(100vh - var(--nav-h));
  padding: calc(var(--nav-h) + 60px) 0 80px;
}

.thanks-headline {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 100;
  color: var(--soul);
  text-transform: lowercase;
  line-height: 1.15;
  margin-bottom: 32px;
  letter-spacing: -0.02em;
}

.thanks-body {
  font-size: 1rem;
  color: var(--gray-mid);
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 48px;
}

.thanks-link {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--soul);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid rgba(243,243,243,0.2);
  padding-bottom: 4px;
  transition: border-color 0.3s ease, opacity 0.3s ease;
  opacity: 0.65;
}

.thanks-link:hover {
  opacity: 1;
  border-color: rgba(243,243,243,0.6);
}

/* ---- Mensaje de error en formulario ---------------------- */

.form-error {
  display: none;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin-top: 12px;
  text-align: center;
}

/* ---- Testimonios ----------------------------------------- */

#testimonials {
  padding: 100px 0;
  background: var(--gray-deep);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  border: 1px solid var(--border);
}

.testimonial {
  padding: 48px 40px;
  border-right: 1px solid var(--border);
}

.testimonial:nth-child(even) {
  border-right: none;
}

.testimonial p {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 300;
  color: var(--soul);
  line-height: 1.65;
  font-style: italic;
  opacity: 0.85;
}

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

  .testimonial {
    padding: 36px 24px;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .testimonial:last-child {
    border-bottom: none;
  }
}