/* ==========================================================================
   TDK Producciones y Eventos — Stylesheet
   Paleta: TDK Pulse (concepto 01)
   ========================================================================== */

:root {
  --bg-deep:    #0B0817;
  --bg-mid:     #1A0E2E;
  --bg-light:   #FAF6EE;
  --ink:        #FFFFFF;
  --ink-muted:  #B5A9C9;
  --ink-dim:    #7A6F8F;
  --accent-pink:#FF1F8F;
  --accent-cyan:#00E5FF;
  --line:       rgba(255,255,255,.10);
  --line-soft:  rgba(255,255,255,.06);

  --radius: 14px;
  --radius-lg: 22px;
  --max-w: 1180px;
  --container-pad: clamp(20px, 4vw, 40px);
  --header-h: 72px;

  --font-display: 'Archivo Black', 'Arial Black', system-ui, sans-serif;
  --font-body:    'Space Grotesk', 'Helvetica Neue', system-ui, sans-serif;

  --shadow-soft: 0 1px 3px rgba(0,0,0,.2), 0 8px 32px rgba(0,0,0,.25);
  --shadow-glow: 0 0 0 1px rgba(255,31,143,.4), 0 8px 40px rgba(255,31,143,.25);
}

/* Reset */
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { animation-duration: 0s !important; transition-duration: 0s !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg-deep);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a { color: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus {
  left: 12px; top: 12px; width: auto; height: auto; padding: 8px 14px;
  background: var(--accent-pink); color: #fff; z-index: 999; border-radius: 8px;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: max(var(--container-pad), env(safe-area-inset-left));
  padding-right: max(var(--container-pad), env(safe-area-inset-right));
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 .5em;
}
h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.9rem, 4.2vw, 3.2rem); }
h3 { font-size: clamp(1.2rem, 2.2vw, 1.5rem); letter-spacing: -0.01em; }

p { margin: 0 0 1em; }
.lead { font-size: clamp(1.05rem, 1.5vw, 1.2rem); color: var(--ink-muted); max-width: 62ch; }

.eyebrow {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--accent-pink);
  margin: 0 0 1.2em;
}
.accent { color: var(--accent-pink); }

/* ===== HEADER =====
   IMPORTANTE: backdrop-filter NO va directamente en .site-header,
   porque crearía un "containing block" para hijos position:fixed.
   Eso hace que el <nav> mobile fixed se posicione relativo al header
   (que mide ~72px) en vez de al viewport, dando altura efectiva 0.
   Lo movemos a un pseudo-elemento absoluto. */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top);
}
.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(11, 8, 23, 0.92);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  z-index: -1;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
  position: relative;
  z-index: 1;
}
.brand { display: inline-flex; align-items: center; }
.primary-nav ul {
  display: flex; gap: 8px; list-style: none; padding: 0; margin: 0;
}
.primary-nav a {
  text-decoration: none; padding: 10px 16px; border-radius: 8px;
  font-weight: 500; font-size: .95rem; color: var(--ink);
  transition: background .18s ease, color .18s ease;
}
.primary-nav a:hover { background: var(--line); }
.primary-nav .cta-link {
  background: var(--accent-pink); color: #fff;
  border-radius: 999px; padding: 10px 20px;
}
.primary-nav .cta-link:hover { background: #FF4DA1; }

.nav-toggle {
  display: none; background: transparent; border: 0; cursor: pointer;
  width: 40px; height: 40px; padding: 8px;
  flex-direction: column; justify-content: space-between;
}
.nav-toggle span {
  display: block; width: 100%; height: 2px; background: var(--ink); border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(10px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-10px) rotate(-45deg); }

/* Mobile/tablet nav: se activa por ancho pequeño O por altura corta
   (esto último captura iPhones en apaisado, donde el ancho > 768px
   pero la altura es < 500px). */
@media (max-width: 768px), (max-height: 500px) {
  .nav-toggle { display: flex; }

  /* Mobile nav: panel desplegable.
     Usa opacity + visibility (no transform) para evitar bugs de compositing
     en iOS Safari cuando hay backdrop-filter en el header sticky. */
  .primary-nav {
    position: fixed;
    top: calc(var(--header-h) + env(safe-area-inset-top));
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-deep);
    border-top: 1px solid var(--line);
    z-index: 49;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .22s ease, visibility .22s;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    padding-bottom: env(safe-area-inset-bottom);
  }
  .primary-nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .primary-nav ul {
    flex-direction: column;
    padding-block: 24px;
    padding-left: max(var(--container-pad), env(safe-area-inset-left));
    padding-right: max(var(--container-pad), env(safe-area-inset-right));
    gap: 4px;
  }
  .primary-nav a { display: block; padding: 14px 16px; font-size: 1.1rem; }
  .primary-nav .cta-link { margin-top: 12px; text-align: center; }
}

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: clamp(48px, 8vw, 96px) 0 clamp(48px, 8vw, 96px);
  text-align: center;
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-mid) 60%, var(--bg-deep) 100%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.glow {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: .35;
}
.glow-pink {
  width: 480px; height: 480px; background: var(--accent-pink);
  top: -120px; left: -100px;
}
.glow-cyan {
  width: 520px; height: 520px; background: var(--accent-cyan);
  bottom: -160px; right: -120px; opacity: .25;
}
.hero-content { position: relative; z-index: 1; }
.hero-logo {
  margin: 24px auto 32px;
  max-width: 720px;
}
.hero-logo svg { width: 100%; height: auto; }
.hero-tagline {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  max-width: 640px;
  margin: 0 auto 36px;
  color: var(--ink-muted);
  line-height: 1.5;
}
.hero-actions {
  display: flex; justify-content: center; gap: 12px; flex-wrap: wrap;
}

/* Equalizer animation */
.eq-bars rect {
  transform-origin: bottom;
  animation: eq-pulse 1.4s ease-in-out infinite;
}
.eq-bars rect:nth-child(odd)  { animation-duration: 1.6s; }
.eq-bars rect:nth-child(3n)   { animation-duration: 1.2s; animation-delay: -.3s; }
.eq-bars rect:nth-child(5n)   { animation-duration: 1.8s; animation-delay: -.6s; }
.eq-bars rect:nth-child(7n)   { animation-duration: 1.0s; animation-delay: -.2s; }
@keyframes eq-pulse {
  0%, 100% { transform: scaleY(0.6); }
  50%      { transform: scaleY(1.05); }
}
@media (prefers-reduced-motion: reduce) {
  .eq-bars rect { animation: none; }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: 999px; cursor: pointer;
  font-family: var(--font-body); font-weight: 600; font-size: .98rem;
  text-decoration: none; border: 0;
  transition: transform .15s ease, background .18s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--accent-pink); color: #fff;
  box-shadow: 0 6px 24px rgba(255,31,143,.35);
}
.btn-primary:hover { background: #FF4DA1; }
.btn-ghost {
  background: transparent; color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }
.btn-sm { padding: 10px 18px; font-size: .88rem; }

/* ===== SECTIONS ===== */
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section-nosotros { background: var(--bg-deep); }
.section-hacemos {
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-mid) 100%);
}
.section-diferencia {
  background: var(--bg-mid);
  background-image:
    radial-gradient(ellipse at top right, rgba(255,31,143,.12), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(0,229,255,.10), transparent 55%);
}
.section-contacto {
  background: linear-gradient(180deg, var(--bg-mid) 0%, var(--bg-deep) 100%);
}

/* Cards (Qué hacemos) */
.cards {
  display: grid; gap: 20px; margin-top: 40px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color .25s ease, transform .25s ease, background .25s ease;
}
.card:hover {
  border-color: var(--accent-pink);
  background: rgba(255,31,143,.06);
  transform: translateY(-4px);
}
.card-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-cyan));
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  color: var(--bg-deep);
  margin-bottom: 20px;
}
.card h3 { color: var(--ink); margin-bottom: 8px; }
.card p { color: var(--ink-muted); margin: 0; font-size: .98rem; }

/* Diff grid */
.diff-grid {
  display: grid; gap: 24px; margin-top: 40px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.diff-item {
  position: relative;
  padding: 28px 24px;
  border-top: 2px solid var(--line);
}
.diff-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 4px;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}
.diff-item h3 { color: var(--ink); margin-bottom: 8px; }
.diff-item p { color: var(--ink-muted); margin: 0; }

/* ===== CONTACTO ===== */
.contacto-grid {
  display: grid;
  gap: clamp(32px, 6vw, 64px);
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 900px) {
  .contacto-grid { grid-template-columns: 1fr 1.1fr; }
}
.contact-direct {
  list-style: none; padding: 0; margin: 24px 0 0;
  font-size: 1rem;
}
.contact-direct li { padding: 6px 0; color: var(--ink-muted); }
.contact-direct a { color: var(--accent-cyan); text-decoration: none; }
.contact-direct a:hover { text-decoration: underline; }

.contact-form {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 36px);
}
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: .85rem; font-weight: 600;
  margin-bottom: 8px;
  color: var(--ink);
  letter-spacing: .02em;
}
.field input,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit; font-size: 1rem;
  background: rgba(0,0,0,.25);
  border: 1.5px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  transition: border-color .18s ease, background .18s ease;
}
.field input::placeholder,
.field textarea::placeholder { color: var(--ink-dim); }
.field input:focus,
.field textarea:focus {
  border-color: var(--accent-pink);
  background: rgba(0,0,0,.4);
  outline: none;
}
.field textarea { resize: vertical; min-height: 130px; }

.field.invalid input,
.field.invalid textarea { border-color: #FF6B6B; }
.error {
  display: block;
  font-size: .82rem; color: #FF8FA3;
  margin-top: 6px; min-height: 1em;
}

.consent { font-size: .92rem; }
.consent-label { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; }
.consent-label input { width: auto; margin-top: 4px; }
.consent-label span { color: var(--ink-muted); }
.consent-label a { color: var(--accent-cyan); }

/* Honeypot */
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.btn-submit { width: 100%; margin-top: 8px; }
.btn-submit[disabled] { opacity: .6; cursor: wait; }

.form-feedback {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 10px;
  font-size: .95rem;
  display: none;
}
.form-feedback.success {
  display: block;
  background: rgba(0, 229, 255, .12);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
}
.form-feedback.error {
  display: block;
  background: rgba(255, 107, 107, .12);
  border: 1px solid #FF6B6B;
  color: #FF8FA3;
}

/* ===== FOOTER ===== */
.site-footer {
  background: #07050F;
  border-top: 1px solid var(--line);
  padding: 64px 0 28px;
}
.footer-inner {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-bottom: 40px;
}
.footer-brand .footer-logo {
  font-family: var(--font-display);
  font-size: 2.4rem;
  margin: 0 0 4px;
  letter-spacing: -.04em;
  background: linear-gradient(90deg, var(--accent-pink), var(--accent-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.footer-brand .footer-tagline {
  font-size: .82rem; letter-spacing: .35em; text-transform: uppercase;
  color: var(--ink-dim); margin: 0;
}
.site-footer h4 {
  font-family: var(--font-body); font-size: .82rem; font-weight: 700;
  letter-spacing: .25em; text-transform: uppercase;
  color: var(--ink); margin: 0 0 16px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { padding: 4px 0; }
.site-footer a {
  color: var(--ink-muted); text-decoration: none; font-size: .95rem;
  transition: color .18s ease;
}
.site-footer a:hover { color: var(--accent-cyan); }
.social-link {
  display: inline-flex; gap: 10px; align-items: center;
  padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px;
  color: var(--ink-muted);
}
.social-link:hover { border-color: var(--accent-pink); color: var(--accent-pink); }

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  font-size: .85rem; color: var(--ink-dim);
}
.footer-bottom p { margin: 0; }
.link-button {
  background: none; border: 0; padding: 0;
  color: var(--ink-muted); text-decoration: underline; cursor: pointer;
  font: inherit;
}
.link-button:hover { color: var(--accent-cyan); }

/* ===== COOKIE BANNER ===== */
.cookie-banner {
  position: fixed;
  bottom: calc(16px + env(safe-area-inset-bottom));
  left: calc(16px + env(safe-area-inset-left));
  right: calc(16px + env(safe-area-inset-right));
  z-index: 100;
  max-width: 540px; margin: 0 auto;
  background: var(--bg-mid);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 60px rgba(0,0,0,.5);
  animation: cookie-in .35s ease;
}
@keyframes cookie-in {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
.cookie-banner-inner { padding: 22px; }
.cookie-banner h3 {
  font-family: var(--font-body); font-size: 1rem; font-weight: 700;
  letter-spacing: .15em; text-transform: uppercase;
  margin: 0 0 8px; color: var(--accent-pink);
}
.cookie-banner p {
  font-size: .92rem; color: var(--ink-muted); margin: 0 0 16px;
}
.cookie-banner a { color: var(--accent-cyan); }
.cookie-actions {
  display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end;
}
.cookie-config {
  margin-top: 18px; padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 10px;
}
.cookie-config label {
  display: flex; align-items: center; gap: 10px;
  font-size: .92rem; color: var(--ink-muted);
}
.cookie-config button { align-self: flex-end; margin-top: 8px; }

/* ===== LEGAL PAGES ===== */
.legal-page { background: var(--bg-deep); }
.legal-content { padding: clamp(48px, 8vw, 96px) 0 80px; }
.legal-content h1 { font-size: clamp(2rem, 5vw, 3rem); }
.legal-content h2 {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  margin: 2.4em 0 .6em;
  color: var(--ink);
}
.legal-content h3 { font-size: 1.15rem; margin: 1.6em 0 .4em; }
.legal-content p, .legal-content li { color: var(--ink-muted); }
.legal-content strong { color: var(--ink); }
.legal-content ul { padding-left: 22px; }
.legal-content ul li { padding: 4px 0; }
.legal-content a { color: var(--accent-cyan); }
.legal-content a:hover { text-decoration: underline; }
.legal-updated {
  font-size: .85rem; color: var(--ink-dim);
  margin-top: -.5em; margin-bottom: 2em;
}
.legal-back { margin-top: 3em; }

.cookies-table {
  width: 100%; border-collapse: collapse; margin: 1em 0 1.5em;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
  font-size: .92rem;
}
.cookies-table th, .cookies-table td {
  text-align: left; padding: 10px 14px;
  border-bottom: 1px solid var(--line);
}
.cookies-table th { background: rgba(255,255,255,.04); color: var(--ink); font-weight: 700; }
.cookies-table td { color: var(--ink-muted); }
.cookies-table code {
  background: rgba(0,229,255,.08); padding: 2px 6px; border-radius: 4px;
  font-size: .9em; color: var(--accent-cyan);
}