/* ═══════════════════════════════════════════════════════════════════════════
   CDH MAKER — styles.css
   Hoja de estilos completa del sitio (tema "océano profundo").

   Organización: variables de tema (claro/oscuro) → base → sidebar nav →
   botones → hero → secciones → tarjetas → proyectos → contacto → modal de
   cuenta → footer → chatbot → efectos visuales → RTL → responsive.
   Cada bloque está marcado con un comentario de sección "===== Nombre =====".

   Sistema de temas: todos los colores viven en variables CSS (--bg, --accent…)
   definidas dos veces: para [data-theme="dark"] y [data-theme="light"].
   theme.js cambia el atributo data-theme de <html> y todo el sitio se
   re-colorea automáticamente, sin tocar ninguna otra regla.
   ───────────────────────────────────────────────────────────────────────────
   Autor:    Ing. Henry Taborda — CDH Maker (Medellín, Colombia)
   Contacto: cdhmaker@gmail.com
   Última actualización: 2026-07-19
   ═══════════════════════════════════════════════════════════════════════════ */

/* ===== Variables de tema — océano profundo (oscuro, por defecto) ===== */
:root, :root[data-theme="dark"] {
  /* Océano profundo (oscuro) */
  --bg: #04141b;
  --bg-alt: #06202b;
  --surface: #0a2833;
  --surface-2: #0e3341;
  --border: #17404f;
  --text: #e6f6f9;
  --text-dim: #9fc0c9;
  --accent: #22d3ee;   /* cian agua */
  --accent-2: #5eead4; /* aqua/teal */
  --page-bg: #03101a;
  --nav-bg: rgba(4, 20, 27, 0.8);
  --glass: rgba(10, 40, 51, 0.72);
  --glass-2: rgba(14, 51, 65, 0.72);
  --section-alt-bg: rgba(6, 32, 43, 0.55);
  --marquee-bg: rgba(6, 32, 43, 0.72);
  --btn-fg: #04141b;
  --grad: linear-gradient(90deg, #22d3ee, #5eead4, #38bdf8);
  --glow: rgba(34, 211, 238, 0.35);
  --radius: 14px;
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
}

:root[data-theme="light"] {
  /* Aguas iluminadas (claro) */
  --bg: #eef8fb;
  --bg-alt: #e2f1f5;
  --surface: #ffffff;
  --surface-2: #eaf4f7;
  --border: #bfdfe6;
  --text: #072028;
  --text-dim: #3f606b;
  /* Un paso más oscuros que el cian/teal del tema oscuro: sobre fondo claro
     los tonos anteriores (#0891b2 / #0d9488) daban 3.4:1 y no llegaban al
     mínimo AA de 4.5:1 para texto normal. Estos rondan 5:1. */
  --accent: #0e7490;
  --accent-2: #0f766e;
  --page-bg: #cfeaf1;
  --nav-bg: rgba(240, 250, 252, 0.82);
  --glass: rgba(255, 255, 255, 0.74);
  --glass-2: rgba(236, 247, 250, 0.74);
  --section-alt-bg: rgba(226, 241, 245, 0.55);
  --marquee-bg: rgba(226, 241, 245, 0.78);
  --btn-fg: #ffffff;
  --grad: linear-gradient(90deg, #0891b2, #0d9488, #2563eb);
  --glow: rgba(8, 145, 178, 0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--page-bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

/* ===== Fondo metaverso ===== */
#metaverse {
  position: fixed; inset: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none; display: block;
}
/* El contenido va por encima del canvas */
.nav, .hero, .marquee, .section, .footer, #to-top, #scroll-progress, #cdh-chat {
  position: relative; z-index: 1;
}
.nav { z-index: 50; }
#to-top, #scroll-progress { z-index: 99; }
#scroll-progress { z-index: 200; }
#cdh-chat { z-index: 100; }
.auth-modal { z-index: 500; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.accent { color: var(--accent); }
.accent-2 { color: var(--accent-2); }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); margin-bottom: 10px; }

/* ===== Sidebar Nav ===== */
:root {
  --sidebar-w: 64px;       /* ancho colapsado */
  --sidebar-expanded: 220px; /* ancho expandido */
}

body { padding-left: var(--sidebar-w); }

.nav {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  z-index: 50;
  display: flex; flex-direction: column;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  border-right: 1px solid var(--border);
  overflow: hidden;
  transition: width 0.28s cubic-bezier(0.4,0,0.2,1);
  will-change: width;
}
.nav:hover, .nav.nav-open {
  width: var(--sidebar-expanded);
  box-shadow: 4px 0 32px rgba(0,0,0,0.35);
}

/* Logo */
.nav-logo {
  display: flex; align-items: center;
  padding: 14px 14px;
  flex-shrink: 0;
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-display); font-weight: 700;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
  min-height: 64px;
  position: relative;
}
.nav-logo .logo-mark {
  width: 36px; height: 36px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: 10px; color: var(--text);
  background: linear-gradient(135deg, rgba(34,211,238,.05), rgba(94,234,212,.02));
  border: 1px solid var(--border);
  position: absolute; left: 14px;
  transition: opacity 0.2s ease;
}
.nav-logo .logo-mark svg { width: 22px; height: 22px; }

.nav-logo-text { 
  opacity: 0; 
  transition: opacity 0.2s ease; 
  display: flex; align-items: center;
  height: 48px;
}
.nav-logo-text svg {
  height: 48px; width: auto;
}
.nav:hover .logo-mark, .nav.nav-open .logo-mark { opacity: 0; pointer-events: none; }
.nav:hover .nav-logo-text, .nav.nav-open .nav-logo-text { opacity: 1; }

/* Items genéricos */
.nav-links { display: flex; flex-direction: column; gap: 2px; flex: 1; padding: 0 8px; }

.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 10px; border-radius: 10px;
  color: var(--text-dim); text-decoration: none;
  font-size: 0.9rem; font-weight: 500; font-family: var(--font-body);
  white-space: nowrap; cursor: pointer;
  background: none; border: none;
  transition: background 0.18s, color 0.18s;
  width: 100%;
}
.nav-item:hover { background: rgba(34,211,238,0.08); color: var(--accent); }
.nav-item.active { background: rgba(34,211,238,0.12); color: var(--accent); }

/* Icono */
.nav-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  display: grid; place-items: center; border-radius: 9px;
}
.nav-icon svg { width: 20px; height: 20px; }

/* Label (oculta hasta hover del sidebar) */
.nav-label {
  opacity: 0; transform: translateX(-6px);
  transition: opacity 0.18s 0.06s, transform 0.18s 0.06s;
  pointer-events: none; white-space: nowrap;
}
.nav:hover .nav-label, .nav.nav-open .nav-label {
  opacity: 1; transform: translateX(0);
}

/* Variante acento (Contacto) */
.nav-item--accent { color: var(--accent); }
.nav-item--accent .nav-icon { background: rgba(34,211,238,0.1); }
.nav-item--accent:hover { background: rgba(34,211,238,0.14); }

/* Botón crear cuenta */
.nav-item--auth {
  background: linear-gradient(135deg,rgba(34,211,238,0.15),rgba(94,234,212,0.09));
  border: 1px solid rgba(34,211,238,0.35) !important;
  color: var(--accent) !important;
  font-weight: 600;
}
.nav-item--auth:hover { border-color: var(--accent) !important; background: rgba(34,211,238,0.2); }

/* Botón salir */
.nav-item--logout { color: #f87171 !important; }
.nav-item--logout:hover { background: rgba(248,113,113,0.1) !important; color: #f87171 !important; }

/* Chip de usuario */
.nav-user-chip { cursor: default; color: var(--text) !important; }
.nav-user-chip:hover { background: none !important; color: var(--text) !important; }
.nav-user-menu { display: flex; flex-direction: column; gap: 2px; }

/* Parte inferior: idioma, tema */
.nav-bottom {
  flex-shrink: 0; padding: 8px 8px 16px;
  border-top: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 2px;
}
.nav-auth-area { margin-bottom: 6px; }

/* Control idioma */
.nav-lang-wrap { cursor: default; }
.nav-lang-wrap:hover { background: rgba(34,211,238,0.06); }
.lang-select {
  appearance: none; -webkit-appearance: none;
  background: transparent; color: var(--text);
  border: none; font-size: 0.88rem; font-family: var(--font-body);
  cursor: pointer; outline: none; width: 100%;
  opacity: 0; transition: opacity 0.18s 0.06s;
  pointer-events: none;
}
.nav:hover .lang-select, .nav.nav-open .lang-select {
  opacity: 1; pointer-events: auto;
}
.lang-select option { background: var(--surface); color: var(--text); }

/* Toggle tema (reutiliza .nav-item--control) */
.nav-item--control { color: var(--text-dim); }
.nav-item--control:hover { color: var(--accent); }

/* Toggle móvil — oculto en desktop */
.nav-toggle { display: none; }


/* ===== Botones ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: 10px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.95rem;
  text-decoration: none; cursor: pointer; transition: all 0.2s;
  border: 1px solid transparent;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary {
  background: var(--accent); color: var(--btn-fg) !important;
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(34, 211, 238, 0.55); }
.btn-ghost { border-color: var(--border); color: var(--text) !important; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent) !important; }
.btn-small { padding: 8px 18px; background: var(--surface-2); border-color: var(--border); color: var(--text) !important; }
.btn-small:hover { border-color: var(--accent); }

/* ===== Hero ===== */
.hero { position: relative; padding: 110px 0 90px; overflow: hidden; }
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, black, transparent);
}
.hero-inner { position: relative; text-align: center; }
.hero-kicker {
  font-family: var(--font-display); color: var(--accent);
  letter-spacing: 2px; margin-bottom: 18px; font-size: 0.9rem;
}
.hero h1 { font-size: clamp(2.2rem, 6vw, 3.8rem); font-weight: 700; margin-bottom: 22px; }
.hero-sub { max-width: 640px; margin: 0 auto 34px; color: var(--text-dim); font-size: 1.1rem; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 24px; }
.hero-privacy-note {
  max-width: 520px; margin: 0 auto 40px auto;
  font-size: 0.85rem; color: var(--text-dim);
  background: var(--glass); backdrop-filter: blur(6px);
  padding: 10px 20px; border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}
.hero-stats {
  display: inline-flex; justify-content: center; gap: clamp(24px, 6vw, 70px); flex-wrap: wrap;
  background: var(--glass); backdrop-filter: blur(6px);
  padding: 20px 36px; border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(0,0,0,0.1);
}
.hero-stats div { display: flex; flex-direction: column; align-items: center; }
.hero-stats strong { font-family: var(--font-display); font-size: 1.3rem; color: var(--accent-2); }
.hero-stats span { color: var(--text-dim); font-size: 0.85rem; }

/* ===== Secciones ===== */
.section { padding: 90px 0; }
.section-alt { background: var(--section-alt-bg); backdrop-filter: blur(3px); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-kicker {
  font-family: var(--font-display); color: var(--accent);
  letter-spacing: 2px; font-size: 0.85rem; margin-bottom: 10px;
}
.section-sub { color: var(--text-dim); margin-bottom: 44px; max-width: 560px; }

/* ===== Cards de servicios ===== */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.card {
  background: var(--glass); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 24px; transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.card:hover {
  transform: translateY(-6px); border-color: var(--accent);
  box-shadow: 0 12px 40px rgba(34, 211, 238, 0.12);
}
.card-icon {
  width: 46px; height: 46px; display: grid; place-items: center;
  border-radius: 12px; margin-bottom: 18px; color: var(--accent);
  background: rgba(34, 211, 238, 0.1); border: 1px solid rgba(34, 211, 238, 0.25);
}
.card-icon svg {
  width: 24px; height: 24px;
  filter: drop-shadow(0 0 6px rgba(34, 211, 238, 0.6));
}
.card:hover .card-icon svg { filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.9)); }
.card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 14px; }
.card ul { list-style: none; }
.card li {
  color: var(--text-dim); font-size: 0.9rem; padding-left: 18px; position: relative; margin-bottom: 6px;
}
.card li::before { content: "▸"; position: absolute; left: 0; color: var(--accent-2); }

/* ===== Proceso ===== */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.step {
  background: var(--glass); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 22px;
}
.step-num { font-family: var(--font-display); font-weight: 700; font-size: 1.6rem; color: var(--accent); opacity: 0.7; }
.step h3 { margin: 8px 0 8px; font-size: 1.05rem; }
.step p { color: var(--text-dim); font-size: 0.92rem; }

/* ===== Proyectos ===== */
.projects { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 20px; }
.project {
  background: linear-gradient(160deg, var(--glass), var(--glass-2));
  backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px;
  transition: transform 0.25s, border-color 0.25s;
}
.project-with-media { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.project-media {
  display: block; aspect-ratio: 16 / 10; overflow: hidden;
  border-bottom: 1px solid var(--border); background: #0b0817;
}
.project-media img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 0.35s ease;
}
.project-media:hover img { transform: scale(1.05); }
.project-media--contain img { object-fit: contain; padding: 18px; }
.project-body { padding: 22px 24px 26px; }
.project-link {
  display: inline-block; margin-top: 12px; color: var(--accent-2);
  font-family: var(--font-display); font-size: 0.88rem; font-weight: 600;
  text-decoration: none; transition: transform 0.2s;
}
.project-link:hover { transform: translateX(4px); }
.project-cta {
  display: flex; align-items: center;
  border-style: dashed; background: transparent;
}
.project-featured { padding: 0; overflow: hidden; margin-bottom: 20px; }
.project-featured video {
  width: 100%; display: block; aspect-ratio: 16 / 9;
  background: #0b0817; border-bottom: 1px solid var(--border);
}
.project-featured .project-body { padding: 22px 24px 26px; }
.pc-cta { margin-top: 16px; }
.project-cta .btn { margin-top: 12px; }
.project:hover { transform: translateY(-5px); border-color: var(--accent-2); }
.project-tag {
  display: inline-block; font-family: var(--font-display); font-size: 0.75rem; font-weight: 600;
  color: var(--accent-2); border: 1px solid rgba(94, 234, 212, 0.4); border-radius: 999px;
  padding: 3px 12px; margin-bottom: 14px; letter-spacing: 1px; text-transform: uppercase;
}
.project h3 { font-size: 1.1rem; margin-bottom: 8px; }
.project p { color: var(--text-dim); font-size: 0.93rem; }

/* ===== Sobre mí ===== */
.about { display: grid; grid-template-columns: 1.2fr 1fr; gap: 50px; align-items: center; }
.about p { color: var(--text-dim); margin-bottom: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.chips span {
  font-size: 0.8rem; font-family: var(--font-display);
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 999px; padding: 5px 14px; color: var(--text-dim);
}
.terminal {
  background: #0b0817; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.terminal-bar { display: flex; gap: 7px; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.terminal-bar span { width: 11px; height: 11px; border-radius: 50%; background: var(--border); }
.terminal-bar span:first-child { background: #f87171; }
.terminal-bar span:nth-child(2) { background: #fbbf24; }
.terminal-bar span:nth-child(3) { background: #34d399; }
.terminal pre {
  padding: 20px; font-size: 0.85rem; line-height: 1.7;
  color: var(--text-dim); overflow-x: auto;
  font-family: "Consolas", "SF Mono", monospace;
}
.t-accent { color: var(--accent); }
.t-ok { color: var(--accent-2); }

/* ===== Contacto ===== */
.contact { text-align: center; }
.contact .section-sub { margin-left: auto; margin-right: auto; }
.contact-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.contact-note { margin-top: 18px; color: var(--text-dim); font-size: 0.88rem; }
.contact-privacy { margin-top: 10px; color: var(--text-dim); font-size: 0.8rem; opacity: 0.85; }

/* Botones de contacto elegantes (solo icono + etiqueta, sin datos) */
.contact-actions-icons { gap: 22px; margin-top: 8px; }
.contact-icon-btn {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  text-decoration: none !important; color: var(--text) !important;
  background: transparent; border: none; cursor: pointer;
  transition: transform 0.25s ease;
}
.contact-icon-btn:hover { transform: translateY(-4px); }
.contact-icon-ring {
  width: 72px; height: 72px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  background: var(--glass);
  box-shadow: 0 10px 30px rgba(0,0,0,0.25), inset 0 0 0 1px rgba(255,255,255,0.04);
  transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.contact-icon-ring svg { width: 30px; height: 30px; }
.contact-icon-label {
  font-family: var(--font-display); font-weight: 600; font-size: 0.92rem;
  letter-spacing: 0.3px;
}
.contact-wa .contact-icon-ring {
  color: #25d366;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.22), inset 0 0 0 1px rgba(37,211,102,0.12);
}
.contact-wa:hover .contact-icon-ring {
  border-color: #25d366;
  box-shadow: 0 14px 36px rgba(37, 211, 102, 0.4);
}
.contact-mail .contact-icon-ring {
  color: var(--accent);
  box-shadow: 0 10px 28px var(--glow), inset 0 0 0 1px rgba(34,211,238,0.1);
}
.contact-mail:hover .contact-icon-ring {
  border-color: var(--accent);
  box-shadow: 0 14px 36px var(--glow);
}
.contact-icon-btn.is-disabled { opacity: 0.55; cursor: not-allowed; }

/* ===== Secciones bloqueadas (auth) ===== */
.gated-section { position: relative; }
.gated-section.is-locked .gated-content {
  filter: blur(7px) saturate(0.7);
  pointer-events: none;
  user-select: none;
  min-height: 280px;
}
.gated-section.is-locked .auth-lock-overlay { display: grid; }
.gated-section.is-unlocked .auth-lock-overlay { display: none; }
.auth-lock-overlay {
  display: none; place-items: center;
  position: absolute; inset: 0; z-index: 5;
  padding: 32px 16px;
  background: linear-gradient(180deg, rgba(3,16,26,0.35), rgba(3,16,26,0.72));
  backdrop-filter: blur(2px);
}
.auth-lock-card {
  max-width: 420px; width: 100%;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 26px;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,0.4);
}
.auth-lock-icon {
  width: 54px; height: 54px; margin: 0 auto 12px;
  border-radius: 50%; display: grid; place-items: center;
  background: rgba(34,211,238,0.1); color: var(--accent);
  border: 1px solid rgba(34,211,238,0.25);
}
.auth-lock-icon svg { width: 26px; height: 26px; }
.auth-lock-card h3 {
  font-size: 1.15rem; margin-bottom: 8px;
}
.auth-lock-card p {
  color: var(--text-dim); font-size: 0.92rem; margin-bottom: 18px; line-height: 1.5;
}
.auth-lock-card .btn { margin: 4px 6px; }

.hero-privacy-note {
  margin-top: 18px; color: var(--text-dim); font-size: 0.88rem;
  max-width: 520px;
}

/* ===== Modal de cuenta ===== */
body.auth-open { overflow: hidden; }
.auth-modal {
  position: fixed; inset: 0; z-index: 500;
  display: grid; place-items: center;
  padding: 20px;
  background: rgba(3, 16, 26, 0.72);
  backdrop-filter: blur(8px);
}
.auth-modal[hidden] { display: none !important; }
.auth-dialog {
  position: relative;
  width: min(440px, 100%);
  max-height: min(92vh, 720px);
  overflow: auto;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px 24px 22px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
}
.auth-close {
  position: absolute; top: 12px; right: 14px;
  background: transparent; border: none; color: var(--text-dim);
  font-size: 1.6rem; line-height: 1; cursor: pointer;
}
.auth-close:hover { color: var(--accent); }
.auth-brand {
  display: flex; gap: 12px; align-items: flex-start; margin-bottom: 18px;
}
.auth-brand .logo-mark {
  width: 40px; height: 40px; flex-shrink: 0;
  display: grid; place-items: center; color: var(--accent);
}
.auth-brand .logo-mark svg { width: 28px; height: 28px; }
.auth-brand h2 { font-size: 1.2rem; margin-bottom: 4px; }
.auth-brand p { color: var(--text-dim); font-size: 0.86rem; line-height: 1.45; margin: 0; }
.auth-tabs {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 4px; margin-bottom: 18px;
}
.auth-tabs button {
  border: none; background: transparent; color: var(--text-dim);
  font-family: var(--font-body); font-weight: 600; font-size: 0.88rem;
  padding: 10px 8px; border-radius: 9px; cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.auth-tabs button.active {
  background: var(--accent); color: var(--btn-fg);
}
.auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-form label {
  display: flex; flex-direction: column; gap: 5px;
  font-size: 0.82rem; color: var(--text-dim); font-weight: 500;
}
.auth-form input, .auth-form select {
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 11px 12px; font-size: 0.95rem; font-family: var(--font-body);
  outline: none; transition: border-color 0.2s, box-shadow 0.2s;
}
.auth-form input:focus, .auth-form select:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px rgba(34,211,238,0.15);
}
.auth-legal { font-size: 0.75rem; color: var(--text-dim); line-height: 1.4; margin: 2px 0 0; }
.auth-error {
  background: rgba(248,113,113,0.12); border: 1px solid rgba(248,113,113,0.35);
  color: #fca5a5; border-radius: 10px; padding: 10px 12px; font-size: 0.86rem;
}
.btn-block { width: 100%; justify-content: center; }
.btn-account {
  background: linear-gradient(135deg, rgba(34,211,238,0.18), rgba(94,234,212,0.12));
  border-color: rgba(34,211,238,0.45) !important;
  color: var(--accent) !important;
  font-weight: 600;
}
.btn-account:hover { border-color: var(--accent) !important; }
/* El atributo [hidden] siempre tiene prioridad sobre cualquier display del CSS */
[hidden] { display: none !important; }

.auth-user-menu {
  display: flex; align-items: center; gap: 8px;
}
.auth-user-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 999px; padding: 6px 12px 6px 8px;
  font-size: 0.82rem; color: var(--text); max-width: 160px;
}
.auth-user-chip span {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.auth-user-chip svg { color: var(--accent); flex-shrink: 0; }
.btn-ghost-nav {
  background: transparent !important; border-color: var(--border) !important;
  color: var(--text-dim) !important; padding: 7px 12px !important;
}
.btn-ghost-nav:hover { color: var(--accent) !important; border-color: var(--accent) !important; }

@media (max-width: 700px) {
  .auth-user-chip span { max-width: 90px; }
  .btn-account { padding: 7px 10px; font-size: 0.8rem; }
  .contact-icon-ring { width: 64px; height: 64px; }
}

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--border); padding: 28px 0; }
.footer-inner {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  color: var(--text-dim); font-size: 0.88rem;
}
.footer a { color: var(--accent); text-decoration: none; }

/* ===== WhatsApp ===== */
.btn-whatsapp {
  background: #25d366; color: #06220f !important;
  box-shadow: 0 0 24px rgba(37, 211, 102, 0.3);
}
.btn-whatsapp:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(37, 211, 102, 0.5); }

/* ===== Chatbot Max ===== */
#cdh-chat { position: fixed; bottom: 22px; right: 22px; z-index: 100; font-family: var(--font-body); }
#cdh-chat-fab {
  width: 60px; height: 60px; border-radius: 50%; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--btn-fg); display: grid; place-items: center; position: relative;
  box-shadow: 0 8px 30px rgba(34, 211, 238, 0.5);
  transition: transform 0.2s;
}
#cdh-chat-fab:hover { transform: scale(1.08); }
#cdh-chat-fab svg { width: 28px; height: 28px; }
.cdh-fab-badge {
  position: absolute; top: -2px; right: -2px; width: 20px; height: 20px;
  background: #f87171; color: #fff; border-radius: 50%;
  font-size: 0.72rem; font-weight: 700; display: grid; place-items: center;
}
#cdh-chat-panel[hidden] { display: none !important; }
#cdh-chat-panel {
  position: absolute; bottom: 74px; right: 0;
  width: min(370px, calc(100vw - 44px)); height: min(540px, calc(100vh - 130px));
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: 16px;
  display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
}
.cdh-chat-header {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px;
  background: var(--surface-2); border-bottom: 1px solid var(--border);
}
.cdh-chat-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--btn-fg); font-weight: 700; font-family: var(--font-display);
  display: grid; place-items: center;
}
.cdh-chat-avatar svg { width: 20px; height: 20px; }
.cdh-chat-header strong { display: block; font-family: var(--font-display); }
.cdh-chat-header span { font-size: 0.75rem; color: var(--accent-2); }
/* El bloque de nombre/estado empuja los botones al extremo derecho */
.cdh-chat-header > div:not(.cdh-chat-avatar) { margin-right: auto; }
#cdh-chat-close {
  background: none; border: none; color: var(--text-dim);
  font-size: 1rem; cursor: pointer; padding: 4px 8px;
}
#cdh-chat-close:hover { color: var(--text); }

/* ── Botón de voz del asesor ───────────────────────────────────────────────
   Alterna entre altavoz encendido y silenciado. Mientras el asesor habla,
   una pequeña onda de barras se anima dentro del propio botón. */
.cdh-voice-btn {
  position: relative; background: none; border: none; cursor: pointer;
  color: var(--accent); padding: 4px 6px; line-height: 0;
  border-radius: 8px; transition: color 0.2s, background 0.2s;
}
.cdh-voice-btn:hover { background: color-mix(in srgb, var(--accent) 14%, transparent); }
.cdh-voice-btn svg { width: 18px; height: 18px; }
.cdh-voice-btn .cdh-ico-off { display: none; }
.cdh-voice-btn.off { color: var(--text-dim); }
.cdh-voice-btn.off .cdh-ico-on { display: none; }
.cdh-voice-btn.off .cdh-ico-off { display: inline; }

/* Onda de audio: solo visible mientras hay habla en curso */
.cdh-voice-wave {
  position: absolute; inset: 0; display: none;
  align-items: center; justify-content: center; gap: 2px;
  background: var(--surface-2); border-radius: 8px;
}
.cdh-voice-btn.speaking .cdh-voice-wave { display: flex; }
.cdh-voice-wave i {
  display: block; width: 2px; height: 6px; border-radius: 2px;
  background: var(--accent); animation: cdh-wave 0.9s ease-in-out infinite;
}
.cdh-voice-wave i:nth-child(2) { animation-delay: 0.15s; }
.cdh-voice-wave i:nth-child(3) { animation-delay: 0.3s; }
.cdh-voice-wave i:nth-child(4) { animation-delay: 0.45s; }
@keyframes cdh-wave {
  0%, 100% { height: 5px; opacity: 0.6; }
  50%      { height: 15px; opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .cdh-voice-wave i { animation: none; height: 10px; }
}
.cdh-chat-msgs { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.cdh-msg {
  max-width: 85%; padding: 10px 14px; border-radius: 14px;
  font-size: 0.9rem; line-height: 1.5; word-wrap: break-word;
}
.cdh-msg.bot {
  align-self: flex-start; background: var(--surface-2);
  border: 1px solid var(--border); border-bottom-left-radius: 4px; color: var(--text);
}
.cdh-msg.user {
  align-self: flex-end; background: var(--accent); color: var(--btn-fg);
  border-bottom-right-radius: 4px; font-weight: 500;
}
.cdh-msg a { color: var(--accent-2); }
.cdh-typing { display: inline-flex; gap: 4px; padding: 2px 0; }
.cdh-typing i {
  width: 7px; height: 7px; border-radius: 50%; background: var(--text-dim);
  animation: cdh-blink 1s infinite;
}
.cdh-typing i:nth-child(2) { animation-delay: 0.2s; }
.cdh-typing i:nth-child(3) { animation-delay: 0.4s; }
@keyframes cdh-blink { 0%, 80%, 100% { opacity: 0.25; } 40% { opacity: 1; } }
.cdh-wa-btn {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 8px;
  background: #25d366; color: #06220f !important; text-decoration: none;
  font-weight: 600; font-size: 0.85rem; padding: 9px 16px; border-radius: 999px;
}
.cdh-wa-btn:hover { filter: brightness(1.1); }
.cdh-chat-quick { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 16px 10px; }
.cdh-chat-quick button {
  background: var(--surface); border: 1px solid var(--accent); color: var(--accent);
  border-radius: 999px; padding: 7px 14px; font-size: 0.8rem; cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.cdh-chat-quick button:hover { background: var(--accent); color: var(--btn-fg); }
.cdh-chat-input {
  display: flex; gap: 8px; padding: 12px 14px;
  border-top: 1px solid var(--border); background: var(--surface);
}
.cdh-chat-input input {
  flex: 1; background: var(--bg); border: 1px solid var(--border); border-radius: 999px;
  padding: 10px 16px; color: var(--text); font-size: 0.9rem; outline: none;
}
.cdh-chat-input input:focus { border-color: var(--accent); }
.cdh-chat-input button {
  width: 42px; height: 42px; border-radius: 50%; border: none; cursor: pointer;
  background: var(--accent); color: var(--btn-fg); display: grid; place-items: center;
}
.cdh-chat-input button svg { width: 18px; height: 18px; }

/* ===== Animación de aparición ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ===== Rediseño visual ===== */
::selection { background: var(--accent); color: var(--btn-fg); }
::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 8px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Texto con degradado animado */
.grad-text, .grad-text-2 {
  background-size: 200% auto;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  animation: grad-shift 4s ease-in-out infinite alternate;
}
.grad-text { background-image: var(--grad); }
.grad-text-2 { background-image: var(--grad); filter: hue-rotate(-12deg); }
@keyframes grad-shift { from { background-position: 0% center; } to { background-position: 100% center; } }

/* Cursor del texto rotativo */
.typed-cursor { color: var(--accent-2); animation: cursor-blink 0.9s step-end infinite; margin-left: 2px; }
@keyframes cursor-blink { 50% { opacity: 0; } }

/* Orbes de luz flotantes */
.orb {
  position: absolute; border-radius: 50%; filter: blur(70px); opacity: 0.35;
  pointer-events: none; animation: orb-float 14s ease-in-out infinite alternate;
}
.orb-1 { width: 380px; height: 380px; background: #0e7490; top: -80px; left: -120px; }
.orb-2 { width: 300px; height: 300px; background: #0d9488; bottom: -60px; right: -80px; animation-delay: -5s; }
.orb-3 { width: 220px; height: 220px; background: #2563eb; top: 40%; left: 55%; animation-delay: -9s; opacity: 0.22; }
@keyframes orb-float {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(50px, -35px) scale(1.15); }
}

/* Botón con brillo pulsante */
.btn-glow { animation: btn-pulse 2.6s ease-in-out infinite; }
@keyframes btn-pulse {
  0%, 100% { box-shadow: 0 0 24px rgba(34, 211, 238, 0.35); }
  50% { box-shadow: 0 0 44px rgba(94, 234, 212, 0.55); }
}

/* Marquee de tecnologías */
.marquee {
  overflow: hidden; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: var(--marquee-bg); padding: 14px 0; position: relative;
}
.marquee::before, .marquee::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 90px; z-index: 1; pointer-events: none;
}
.marquee::before { left: 0; background: linear-gradient(90deg, var(--bg-alt), transparent); }
.marquee::after { right: 0; background: linear-gradient(-90deg, var(--bg-alt), transparent); }
.marquee-track {
  display: flex; gap: 26px; width: max-content; white-space: nowrap;
  animation: marquee-scroll 30s linear infinite;
  font-family: var(--font-display); font-size: 0.9rem; color: var(--text-dim);
}
.marquee-track span:nth-child(even) { color: var(--accent); font-size: 0.7rem; align-self: center; }
@keyframes marquee-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.marquee:hover .marquee-track { animation-play-state: paused; }

/* Borde con degradado al pasar el mouse en tarjetas */
.card, .project, .step, .why-item { position: relative; }
.card::before, .project::before, .why-item::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px;
  background: linear-gradient(135deg, var(--accent), transparent 40%, transparent 60%, var(--accent-2));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity 0.3s; pointer-events: none;
}
.card:hover::before, .project:hover::before, .why-item:hover::before { opacity: 1; }
.card:hover .card-icon { box-shadow: 0 0 24px rgba(34, 211, 238, 0.45); }

/* Sección Por qué */
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; }
.why-item {
  background: var(--glass); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 24px; transition: transform 0.25s;
}
.why-item:hover { transform: translateY(-5px); }
.why-icon {
  width: 54px; height: 54px; display: grid; place-items: center;
  border-radius: 14px; margin-bottom: 16px; color: var(--accent);
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.14), rgba(94, 234, 212, 0.08));
  border: 1px solid rgba(34, 211, 238, 0.3);
  box-shadow: inset 0 0 18px rgba(34, 211, 238, 0.08);
  transition: box-shadow 0.3s, transform 0.3s;
}
.why-icon svg {
  width: 26px; height: 26px;
  filter: drop-shadow(0 0 6px rgba(34, 211, 238, 0.65));
}
.why-item:hover .why-icon {
  box-shadow: inset 0 0 22px rgba(34, 211, 238, 0.16), 0 0 24px rgba(34, 211, 238, 0.35);
  transform: scale(1.06);
}
.why-item h3 { font-size: 1.05rem; margin-bottom: 8px; }
.why-item p { color: var(--text-dim); font-size: 0.92rem; }

/* Nav: enlace activo */
.nav-links a.active { color: var(--accent); }

/* Barra de progreso de scroll */
#scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 200;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
}

/* Botón volver arriba */
#to-top {
  position: fixed; bottom: 96px; right: 27px; z-index: 99;
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--border);
  background: var(--surface-2); color: var(--accent); font-size: 1.2rem; cursor: pointer;
  opacity: 0; transform: translateY(12px); pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}
#to-top.show { opacity: 1; transform: none; pointer-events: auto; }
#to-top:hover { border-color: var(--accent); }

/* Footer ampliado */
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px;
  padding: 44px 24px 28px;
}

/* ===== Logo animado del footer =====
   El logo completo de la marca se arma pieza a pieza cada vez que el visitante
   llega al footer: script.js añade .play al entrar en pantalla y la retira al
   salir (el regreso al estado oculto es instantáneo, sin transición, para que
   la próxima visita vuelva a disfrutar el armado desde cero). */
.footer-logo-link {
  display: inline-block; width: min(340px, 100%);
  color: var(--text); text-decoration: none;
}
.footer-logo { width: 100%; height: auto; display: block; overflow: visible; }
.footer-logo .fl-piece {
  opacity: 0;
  /* Cada pieza define en línea su punto de partida (--fx/--fy) y giro (--fr) */
  transform: translate(var(--fx, 0px), var(--fy, -40px)) rotate(var(--fr, 0deg));
  transform-box: fill-box; transform-origin: center;
  transition: none; /* reset instantáneo al salir del footer */
  will-change: transform, opacity;
}
.footer-logo.play .fl-piece {
  opacity: 1; transform: translate(0, 0) rotate(0deg);
  /* Curva con leve sobrepaso: la pieza "encaja" con un asentamiento fino */
  transition: transform 0.65s cubic-bezier(0.22, 1.25, 0.32, 1), opacity 0.4s ease;
  /* Llegada escalonada: una pieza cada 110 ms según su orden (--i) */
  transition-delay: calc(var(--i) * 110ms);
}
@media (prefers-reduced-motion: reduce) {
  .footer-logo .fl-piece { opacity: 1; transform: none; transition: none; }
}
.footer-grid h4 {
  font-family: var(--font-display); font-size: 0.85rem; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--accent); margin-bottom: 14px;
}
.footer-grid a, .footer-loc {
  display: block; color: var(--text-dim); text-decoration: none;
  font-size: 0.92rem; margin-bottom: 9px; transition: color 0.2s;
}
.footer-grid a:hover { color: var(--accent); }
.footer-loc { display: flex !important; align-items: center; gap: 6px; }
.loc-pin { width: 15px; height: 15px; color: var(--accent); flex-shrink: 0; }
.footer-tagline { color: var(--text-dim); margin-top: 14px; font-style: italic; }
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; gap: 26px; } }

/* Movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  .grad-text, .grad-text-2, .orb, .btn-glow, .marquee-track, .typed-cursor { animation: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ===== Controles de nav (idioma + tema) ===== */
.nav-controls { display: flex; align-items: center; gap: 10px; }
.lang-select {
  appearance: none; -webkit-appearance: none;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 9px;
  padding: 7px 30px 7px 12px; font-size: 0.85rem; font-family: var(--font-body);
  cursor: pointer; max-width: 150px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322d3ee' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 8px center; background-size: 15px;
}
.lang-select:hover { border-color: var(--accent); }
.lang-select option { background: var(--surface); color: var(--text); }
.theme-toggle {
  width: 38px; height: 38px; border-radius: 9px; cursor: pointer;
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--accent); line-height: 1; display: grid; place-items: center;
  transition: border-color 0.2s, transform 0.2s;
}
.theme-toggle svg { filter: drop-shadow(0 0 5px rgba(34, 211, 238, 0.55)); }
.theme-toggle:hover { border-color: var(--accent); transform: scale(1.06); }

/* ===== Soporte RTL (árabe) ===== */
[dir="rtl"] .card li { padding-left: 0; padding-right: 18px; }
[dir="rtl"] .card li::before { left: auto; right: 0; }
[dir="rtl"] .section-sub { margin-left: auto; margin-right: 0; }
[dir="rtl"] .lang-select { padding: 7px 12px 7px 30px; background-position: left 8px center; }
[dir="rtl"] .hero-kicker, [dir="rtl"] .section-kicker { direction: ltr; }
[dir="rtl"] .cdh-msg.user { align-self: flex-start; }
[dir="rtl"] .cdh-msg.bot { align-self: flex-end; }

/* ===== Terminal animada (Desarrollo a la medida) ===== */
.code-sim-wrap { display: block; cursor: default; }
.code-sim { height: 100%; display: flex; flex-direction: column; background: #050d14; }
.code-sim-bar {
  display: flex; align-items: center; gap: 7px; padding: 10px 14px;
  border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.code-sim-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.code-sim-bar span:first-child { background: #f87171; }
.code-sim-bar span:nth-child(2) { background: #fbbf24; }
.code-sim-bar span:nth-child(3) { background: #34d399; }
.code-sim-bar em {
  margin-left: auto; font-style: normal; font-family: var(--font-display);
  font-size: 0.7rem; color: var(--text-dim); letter-spacing: 1px;
}
.code-sim pre {
  flex: 1; margin: 0; padding: 14px 16px; overflow: hidden;
  font-family: "Consolas", "SF Mono", monospace; font-size: 0.78rem; line-height: 1.55;
  color: #9fd8e8; white-space: pre-wrap; word-break: break-word;
}
.code-sim .tk-kw { color: #22d3ee; }
.code-sim .tk-fn { color: #5eead2; }
.code-sim .tk-str { color: #a5f3b4; }
.code-sim .tk-ok { color: #34d399; }
.code-caret { color: var(--accent-2); animation: cursor-blink 0.9s step-end infinite; }

/* ===== FAQ ===== */
.faq-list { max-width: 760px; display: grid; gap: 12px; }
.faq-item {
  background: rgba(10, 30, 41, 0.72); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: border-color 0.25s;
}
[data-theme="light"] .faq-item { background: rgba(255, 255, 255, 0.72); }
.faq-item[open] { border-color: var(--accent); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 18px 20px; cursor: pointer; list-style: none;
  font-family: var(--font-display); font-weight: 600; font-size: 0.98rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent); }
.faq-chev {
  flex-shrink: 0; width: 9px; height: 9px;
  border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: rotate(45deg); transition: transform 0.25s;
}
.faq-item[open] .faq-chev { transform: rotate(225deg); }
.faq-item p { padding: 0 20px 18px; color: var(--text-dim); font-size: 0.93rem; }

/* ===== HUD de profundidad ===== */
#depth-hud {
  position: fixed; bottom: 24px; left: calc(var(--sidebar-w) + 14px); z-index: 98;
  display: flex; align-items: center; gap: 7px;
  padding: 7px 13px; border-radius: 999px;
  background: rgba(10, 30, 41, 0.6); backdrop-filter: blur(8px);
  border: 1px solid var(--border); color: var(--accent);
  font-family: var(--font-display); font-size: 0.78rem; letter-spacing: 1px;
  opacity: 0; transform: translateY(8px); transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
}
[data-theme="light"] #depth-hud { background: rgba(255, 255, 255, 0.6); }
#depth-hud.show { opacity: 1; transform: none; }
#depth-hud svg { width: 13px; height: 13px; }

/* ===== Resplandor del cursor ===== */
#cursor-glow {
  position: fixed; top: 0; left: 0; width: 340px; height: 340px;
  margin: -170px 0 0 -170px; border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.10), transparent 65%);
  pointer-events: none; z-index: 1; opacity: 0;
  transition: opacity 0.4s;
}
[data-theme="light"] #cursor-glow { background: radial-gradient(circle, rgba(255, 255, 255, 0.35), transparent 65%); }
@media (hover: none) { #cursor-glow, #depth-hud { display: none; } }

/* ===== Tilt 3D en tarjetas ===== */
.cards, .projects, .why-grid { perspective: 1100px; }
.card, .project, .why-item { transform-style: preserve-3d; will-change: transform; }

/* ===== Accesibilidad ===== */
.skip-link {
  position: fixed; top: -60px; left: 16px; z-index: 300;
  background: var(--accent); color: var(--btn-fg); font-family: var(--font-display);
  padding: 10px 18px; border-radius: 0 0 10px 10px; text-decoration: none;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }
a:focus-visible, button:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px;
}

/* ===== Ventana de anuncios (widget fijo, no modal) ===== */
#cdh-ad-widget {
  position: fixed; z-index: 90;
  bottom: 84px; left: calc(var(--sidebar-w) + 16px);
  opacity: 0; transform: translateY(10px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
#cdh-ad-widget.show { opacity: 1; transform: none; }
.cdh-ad-card {
  width: 264px;
  background: rgba(10, 30, 41, 0.94); backdrop-filter: blur(10px);
  border: 1px solid var(--border); border-radius: 16px; overflow: hidden;
  box-shadow: 0 16px 46px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(34, 211, 238, 0.06);
}
[data-theme="light"] .cdh-ad-card { background: rgba(255, 255, 255, 0.96); }
.cdh-ad-head {
  display: flex; align-items: center; gap: 7px;
  padding: 9px 10px; border-bottom: 1px solid var(--border);
}
.cdh-ad-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 8px var(--accent); flex-shrink: 0;
  animation: cdh-ad-pulse 2s ease-in-out infinite;
}
@keyframes cdh-ad-pulse { 50% { opacity: 0.4; } }
.cdh-ad-tag {
  font-family: var(--font-display); font-size: 0.64rem; letter-spacing: 1.2px;
  text-transform: uppercase; color: var(--text-dim);
}
.cdh-ad-min {
  margin-left: auto; width: 22px; height: 22px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text);
  cursor: pointer; display: grid; place-items: center; line-height: 1; font-size: 1rem;
  transition: border-color 0.2s, transform 0.2s;
}
.cdh-ad-min:hover { border-color: var(--accent); transform: scale(1.08); }
.cdh-ad-media { position: relative; aspect-ratio: 16 / 9; background: #04141c; }
.cdh-ad-media video { width: 100%; height: 100%; object-fit: cover; display: block; }
.cdh-ad-mute {
  position: absolute; bottom: 8px; right: 8px; width: 28px; height: 28px;
  border-radius: 50%; border: 1px solid rgba(255,255,255,0.25);
  background: rgba(3, 10, 15, 0.55); backdrop-filter: blur(6px);
  color: #fff; cursor: pointer; display: grid; place-items: center;
}
.cdh-ad-mute:hover { border-color: var(--accent); }
.cdh-ad-mute svg { width: 14px; height: 14px; }
.cdh-ad-body { padding: 10px 12px 12px; display: flex; flex-direction: column; gap: 2px; }
.cdh-ad-body strong { font-family: var(--font-display); font-size: 0.88rem; }
.cdh-ad-body span { color: var(--text-dim); font-size: 0.76rem; line-height: 1.35; }

.cdh-ad-pill {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px 10px 12px; border-radius: 999px;
  background: rgba(10, 30, 41, 0.94); backdrop-filter: blur(10px);
  border: 1px solid var(--border); color: var(--accent); cursor: pointer;
  font-family: var(--font-display); font-size: 0.82rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  transition: border-color 0.2s, transform 0.2s;
}
[data-theme="light"] .cdh-ad-pill { background: rgba(255, 255, 255, 0.96); }
.cdh-ad-pill:hover { border-color: var(--accent); transform: translateY(-2px); }
.cdh-ad-pill svg { width: 16px; height: 16px; }
.cdh-ad-pill span { color: var(--text); }

@media (max-width: 760px) {
  #cdh-ad-widget { left: 14px; bottom: 96px; }
  .cdh-ad-card { width: 50vw; max-width: 210px; }
  .cdh-ad-body span { display: none; }
}

/* ===== Responsive — sidebar → top bar en móvil ===== */
@media (max-width: 760px) {
  :root { --sidebar-w: 0px; }
  body { padding-left: 0; padding-top: 60px; }

  .nav {
    width: 100% !important; height: 60px; flex-direction: row;
    align-items: center; top: 0; left: 0; bottom: auto;
    border-right: none; border-bottom: 1px solid var(--border);
    padding: 0 14px; gap: 10px;
    overflow: visible;
  }
  .nav:hover { box-shadow: none; }
  .nav-logo { border-bottom: none; margin-bottom: 0; min-height: unset; padding: 10px 6px; flex: 1; }
  .nav-logo-text, .nav-label { opacity: 1 !important; transform: none !important; }
  .lang-select { opacity: 1 !important; pointer-events: auto !important; }

  .nav-links {
    display: none; flex-direction: column;
    position: absolute; top: 60px; left: 0; right: 0;
    background: var(--bg-alt); border-bottom: 1px solid var(--border);
    padding: 12px 16px; gap: 4px;
    flex: unset; z-index: 200;
  }
  .nav-links.open { display: flex; }

  .nav-bottom {
    display: none; position: absolute; top: 60px; left: 0; right: 0;
    background: var(--bg-alt); border-bottom: 1px solid var(--border);
    padding: 12px 16px; flex-direction: column; gap: 4px; z-index: 200;
  }
  .nav-bottom.open { display: flex; }

  .nav-toggle {
    display: grid; place-items: center;
    background: none; border: none; color: var(--text);
    cursor: pointer; width: 40px; height: 40px;
    border-radius: 9px; flex-shrink: 0;
  }
  .nav-toggle svg { width: 24px; height: 24px; }
  .nav-toggle:hover { background: rgba(34,211,238,0.08); color: var(--accent); }

  .about { grid-template-columns: 1fr; }
  .hero { padding: 70px 0 60px; }
  .auth-user-chip span { max-width: 90px; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .cdh-ad-window { max-width: 100%; }
}
