/* ============================================================================
 * premium-theme.css — Capa de elevación UX/UI "Premium" (Ruta Empresarial)
 * ----------------------------------------------------------------------------
 * Se carga DESPUÉS de style.css y motion.css. NO reescribe el HTML: redefine los
 * design tokens (se propagan a toda la app vía var()) y eleva los componentes de
 * mayor impacto con profundidad, glassmorphism y micro-interacciones.
 *
 * Principios aplicados (modern-web-design):
 *   - Tipografía y espaciado fluidos (clamp).
 *   - Sistema de elevación por capas (sombras layered).
 *   - Solo se animan transform/opacity (GPU, 60/120 FPS).
 *   - Glassmorphism con fallback sólido.
 *   - Accesibilidad: focus-visible, contraste, prefers-reduced-motion.
 *   - Marca preservada: teal #0dbdbd · lime #7ac142 · navy #0b3470.
 * ========================================================================== */

/* ----------------------------------------------------------------------------
 * 1. DESIGN TOKENS (override) — re-skin global vía variables
 * -------------------------------------------------------------------------- */
:root {
  /* Marca (canónicos) */
  --brand-teal: #0dbdbd;
  --brand-teal-deep: #0a9ca0;
  --brand-lime: #7ac142;
  --brand-navy: #0b3470;
  --brand-navy-deep: #082a5e;

  /* Lienzo: blanco frío sofisticado (no el verde plano anterior) */
  --bg-primary: #eef3f6;
  --bg-secondary: #ffffff;

  /* Tarjetas de cristal (glassmorphism) */
  --bg-card: rgba(255, 255, 255, 0.72);
  --bg-card-hover: rgba(255, 255, 255, 0.86);
  --glass-blur: saturate(180%) blur(16px);
  --border-card: rgba(255, 255, 255, 0.65);
  --border-hairline: rgba(11, 52, 112, 0.10);

  /* Texto (contraste AAA sobre claro) */
  --text-primary: #0b1f3a;
  --text-secondary: #44566c;
  --text-muted: #8295a8;

  /* Acentos (mantén nombres existentes) */
  --accent-1: var(--brand-teal);
  --accent-2: var(--brand-lime);
  --accent-3: var(--brand-navy);
  --border-active: var(--brand-teal);

  /* Gradientes premium */
  --gradient-main: linear-gradient(135deg, #12cccc 0%, #0dbdbd 45%, #7ac142 100%);
  --gradient-navy: linear-gradient(135deg, #0e3f86 0%, #0b3470 60%, #082a5e 100%);
  --gradient-sheen: linear-gradient(115deg, transparent 0%, rgba(255,255,255,.55) 50%, transparent 100%);

  /* Sistema de elevación por capas (depth) */
  --elev-1: 0 1px 2px rgba(11,31,58,.06), 0 2px 6px rgba(11,31,58,.06);
  --elev-2: 0 2px 4px rgba(11,31,58,.06), 0 8px 20px rgba(11,31,58,.08);
  --elev-3: 0 6px 12px rgba(11,31,58,.08), 0 18px 40px rgba(11,31,58,.12);
  --elev-4: 0 12px 24px rgba(11,31,58,.10), 0 32px 64px rgba(11,31,58,.16);
  --shadow-card: var(--elev-2);
  --shadow-glow: 0 0 0 1px rgba(13,189,189,.25), 0 10px 36px rgba(13,189,189,.22);

  /* Radios (un punto más generosos) */
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 26px;

  /* Tipografía fluida */
  --fs-xs:  clamp(0.75rem, 0.71rem + 0.18vw, 0.85rem);
  --fs-sm:  clamp(0.85rem, 0.80rem + 0.25vw, 0.95rem);
  --fs-base:clamp(0.95rem, 0.90rem + 0.30vw, 1.06rem);
  --fs-lg:  clamp(1.15rem, 1.05rem + 0.6vw, 1.45rem);
  --fs-xl:  clamp(1.6rem, 1.3rem + 1.4vw, 2.4rem);
  --fs-2xl: clamp(2.1rem, 1.6rem + 2.4vw, 3.4rem);

  /* Espaciado fluido (8pt-ish) */
  --space-xs: clamp(0.5rem, 0.45rem + 0.25vw, 0.75rem);
  --space-sm: clamp(0.75rem, 0.65rem + 0.5vw, 1.1rem);
  --space-md: clamp(1rem, 0.85rem + 0.75vw, 1.6rem);
  --space-lg: clamp(1.5rem, 1.2rem + 1.5vw, 2.4rem);

  /* Easing y duración (premium) */
  --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition: all 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ----------------------------------------------------------------------------
 * 2. LIENZO + FONDO AURORA VIVO (GPU, transform only)
 * -------------------------------------------------------------------------- */
body {
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Aurora suave en blobs de marca, detrás de todo */
body::before {
  content: "";
  position: fixed;
  inset: -25vmax;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(38vmax 38vmax at 18% 16%, rgba(13,189,189,.30), transparent 60%),
    radial-gradient(34vmax 34vmax at 84% 22%, rgba(122,193,66,.26), transparent 60%),
    radial-gradient(42vmax 42vmax at 70% 88%, rgba(14,63,134,.22), transparent 62%),
    radial-gradient(30vmax 30vmax at 25% 82%, rgba(13,189,189,.18), transparent 60%);
  filter: blur(8px);
  animation: aurora-drift 26s ease-in-out infinite alternate;
  will-change: transform;
}
/* Grano/velo sutil para profundidad */
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(120% 100% at 50% 0%, transparent 60%, rgba(11,31,58,.05) 100%);
}
@keyframes aurora-drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(2%, -1.5%, 0) scale(1.06); }
  100% { transform: translate3d(-2%, 2%, 0) scale(1.03); }
}

/* ----------------------------------------------------------------------------
 * 3. PANTALLA DE BIENVENIDA — héroe premium con glass
 * -------------------------------------------------------------------------- */
.welcome-screen {
  background: transparent;                 /* deja ver la aurora */
  backdrop-filter: saturate(120%) blur(2px);
}
.welcome-content {
  position: relative;
  padding: clamp(1.75rem, 1rem + 3vw, 3rem);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--elev-4);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}
.welcome-subtitle { font-size: var(--fs-lg); color: var(--text-secondary); }
.feature-chip {
  background: rgba(255,255,255,.6);
  border: 1px solid var(--border-hairline);
  box-shadow: var(--elev-1);
  font-weight: 600;
  transition: var(--transition);
}
.feature-chip:hover { transform: translateY(-2px); box-shadow: var(--elev-2); }

/* ----------------------------------------------------------------------------
 * 4. BOTONES PRINCIPALES — gradiente, brillo, lift y press
 * -------------------------------------------------------------------------- */
.btn-start, .btn-next, .btn-submit, .pdf-btn, .whatsapp-btn {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  transition: transform .3s var(--ease-out-quint), box-shadow .3s var(--ease-out-quint);
  will-change: transform;
}
.btn-start, .btn-next, .btn-submit {
  background: var(--gradient-main);
  box-shadow: 0 8px 24px rgba(13,189,189,.32), inset 0 1px 0 rgba(255,255,255,.4);
}
/* Brillo que cruza al hover (transform only) */
.btn-start::after, .btn-next::after, .btn-submit::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--gradient-sheen);
  transform: translateX(-130%);
  transition: transform .7s var(--ease-out-quint);
  pointer-events: none;
}
.btn-start:hover, .btn-next:hover, .btn-submit:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(13,189,189,.42), inset 0 1px 0 rgba(255,255,255,.5);
}
.btn-start:hover::after, .btn-next:hover::after, .btn-submit:hover::after { transform: translateX(130%); }
.btn-start:active, .btn-next:active, .btn-submit:active { transform: translateY(-1px) scale(.985); }
.btn-back {
  border-radius: var(--radius-lg);
  transition: var(--transition);
}
.btn-back:hover { transform: translateX(-3px); }

/* ----------------------------------------------------------------------------
 * 5. CABECERA + PROGRESO
 * -------------------------------------------------------------------------- */
.app-header {
  background: rgba(255,255,255,.7);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-hairline);
  box-shadow: var(--elev-1);
}
.progress-bar { background: rgba(11,52,112,.08); overflow: hidden; }
.progress-fill {
  background: var(--gradient-main) !important;
  box-shadow: 0 0 16px rgba(13,189,189,.5);
}
.step-dot {
  transition: transform .35s var(--ease-spring), background .3s ease, box-shadow .3s ease;
}
.step-dot.active {
  transform: scale(1.18);
  box-shadow: 0 0 0 4px rgba(13,189,189,.18), 0 6px 16px rgba(13,189,189,.35);
}

/* ----------------------------------------------------------------------------
 * 6. CABECERAS DE FASE — título con más presencia
 * -------------------------------------------------------------------------- */
.phase-title { font-size: var(--fs-xl); letter-spacing: -0.02em; box-shadow: var(--elev-2); }
.phase-badge {
  background: linear-gradient(135deg, rgba(13,189,189,.18), rgba(122,193,66,.18));
  border: 1px solid rgba(13,189,189,.35);
  font-weight: 700;
}

/* ----------------------------------------------------------------------------
 * 7. TARJETAS DE CRISTAL (formulario y resultados)
 * -------------------------------------------------------------------------- */
.form-card, .dash-card, .res-etapa-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--elev-2);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  transition: transform .35s var(--ease-out-quint), box-shadow .35s var(--ease-out-quint), border-color .3s ease;
}
.form-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--elev-3);
  border-color: rgba(13,189,189,.35);
}
/* Hairline superior de acento en cada card */
.form-card { position: relative; }
.form-card::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: var(--gradient-main);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  opacity: .0; transition: opacity .3s ease;
}
.form-card:hover::before { opacity: 1; }

/* ----------------------------------------------------------------------------
 * 8. OPCIONES SELECCIONABLES — táctiles, con lift + estado activo claro
 * -------------------------------------------------------------------------- */
.toggle-btn, .quiz-option, .gender-btn, .sector-option {
  border-radius: var(--radius-md);
  transition: transform .25s var(--ease-out-quint), box-shadow .25s var(--ease-out-quint),
              border-color .25s ease, background .25s ease;
  will-change: transform;
}
.toggle-btn:hover, .quiz-option:hover, .gender-btn:hover, .sector-option:hover {
  transform: translateY(-2px);
  box-shadow: var(--elev-2);
  border-color: rgba(13,189,189,.5);
}
.toggle-btn:active, .quiz-option:active, .gender-btn:active, .sector-option:active { transform: scale(.98); }

/* Estado seleccionado (cubre .selected y .active/.locked usados por el JS) */
.toggle-btn.selected, .toggle-btn.active,
.quiz-option.selected, .quiz-option.locked,
.gender-btn.selected, .sector-option.selected {
  border-color: var(--brand-teal);
  background: linear-gradient(135deg, rgba(13,189,189,.12), rgba(122,193,66,.10));
  box-shadow: 0 0 0 2px rgba(13,189,189,.30), var(--elev-2);
}
.quiz-option .option-letter { transition: transform .25s var(--ease-spring); }
.quiz-option:hover .option-letter { transform: scale(1.1) rotate(-4deg); }

/* ----------------------------------------------------------------------------
 * 9. INPUTS — foco premium y profundidad
 * -------------------------------------------------------------------------- */
.input-wrapper input, .input-group input, input[type="text"], input[type="email"],
input[type="tel"], input[type="number"], select, textarea {
  border-radius: var(--radius-md) !important;
  transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease !important;
}
.input-wrapper input:focus, .input-group input:focus,
input:focus, select:focus, textarea:focus {
  border-color: var(--brand-teal) !important;
  box-shadow: 0 0 0 4px rgba(13,189,189,.16) !important;
  outline: none;
}

/* ----------------------------------------------------------------------------
 * 10. CONTROLES FLOTANTES DE AUDIO (🔊 / 🎵) — glass + lift
 * -------------------------------------------------------------------------- */
.sfx-toggle {
  background: rgba(255,255,255,.78) !important;
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-hairline) !important;
  box-shadow: var(--elev-2) !important;
  transition: transform .3s var(--ease-spring), box-shadow .3s ease !important;
}
.sfx-toggle:hover { transform: translateY(-2px) scale(1.06); box-shadow: var(--elev-3) !important; }
.ambient-toggle { right: 4.6rem; }   /* separa el 🎵 del 🔊 si comparten esquina */

/* ----------------------------------------------------------------------------
 * 11. DETALLES — scrollbar, selección, focus accesible
 * -------------------------------------------------------------------------- */
::selection { background: rgba(13,189,189,.28); color: var(--brand-navy); }

*:focus-visible {
  outline: 3px solid var(--brand-teal);
  outline-offset: 2px;
  border-radius: 6px;
}
:focus:not(:focus-visible) { outline: none; }

/* Skip-link accesible (visible solo al enfocarlo con teclado) */
.skip-link {
  position: absolute; left: 50%; top: -60px; transform: translateX(-50%);
  z-index: 1000; background: var(--brand-navy); color: #fff; font-weight: 600;
  padding: 0.6rem 1.2rem; border-radius: 0 0 12px 12px; text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 0; }

/* Scrollbar fino y de marca (WebKit) */
* { scrollbar-width: thin; scrollbar-color: rgba(13,189,189,.55) transparent; }
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--brand-teal), var(--brand-lime));
  border-radius: 99px; border: 3px solid transparent; background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--brand-teal-deep); background-clip: content-box; }

/* ----------------------------------------------------------------------------
 * 11.b GRÁFICOS 3D (pantalla de resultados)
 *   El filtro drop-shadow da profundidad al radar SOLO en pantalla; no se captura
 *   en toBase64Image, así que el certificado PDF se mantiene limpio.
 * -------------------------------------------------------------------------- */
.dash-card, .res-card { transform-style: preserve-3d; }
.dash-radar-wrap canvas { filter: drop-shadow(0 12px 22px rgba(11,52,112,.20)); }
@media (prefers-reduced-motion: reduce) {
  .dash-radar-wrap canvas { filter: none; }
}

/* ----------------------------------------------------------------------------
 * 11.c PANTALLA DE ESPERA AL GENERAR EL PDF
 * -------------------------------------------------------------------------- */
.pdf-wait {
  position: fixed; inset: 0; z-index: 9998;
  display: flex; align-items: center; justify-content: center; padding: 1.5rem;
  background: radial-gradient(1200px 700px at 50% 30%, rgba(13,189,189,.18), transparent 60%), rgba(11,31,58,.55);
  -webkit-backdrop-filter: blur(7px) saturate(120%); backdrop-filter: blur(7px) saturate(120%);
  opacity: 0; pointer-events: none; transition: opacity .35s var(--ease-dramatic);
}
.pdf-wait.show { opacity: 1; pointer-events: auto; }
.pdf-wait__card {
  background: rgba(255,255,255,.92); border: 1px solid var(--border-card);
  border-radius: 24px; padding: 2.3rem 2.5rem; max-width: 380px; text-align: center;
  box-shadow: var(--elev-4); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  transform: translateY(16px) scale(.95); transition: transform .45s var(--ease-overshoot);
}
.pdf-wait.show .pdf-wait__card { transform: none; }
.pdf-wait__spin { position: relative; width: 84px; height: 84px; margin: 0 auto 1.25rem; }
.pdf-wait__ring {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--brand-teal), var(--brand-lime), var(--brand-navy), var(--brand-teal));
  -webkit-mask: radial-gradient(farthest-side, transparent 62%, #000 64%);
          mask: radial-gradient(farthest-side, transparent 62%, #000 64%);
  animation: pdf-spin 1s linear infinite; will-change: transform;
}
.pdf-wait__emoji {
  position: absolute; inset: 0; display: grid; place-items: center; font-size: 2rem;
  animation: pdf-bob 1.8s var(--ease-inout) infinite;
}
.pdf-wait__title { font-family: 'Poppins', sans-serif; font-weight: 700; color: var(--brand-navy); font-size: 1.18rem; letter-spacing: -0.01em; }
.pdf-wait__sub { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.4rem; line-height: 1.5; }
.pdf-wait__dots::after { content: ''; animation: pdf-dots 1.4s steps(4, end) infinite; }
.pdf-wait__bar { height: 6px; border-radius: 99px; background: rgba(11,52,112,.10); overflow: hidden; margin-top: 1.3rem; }
.pdf-wait__bar::before {
  content: ''; display: block; height: 100%; width: 38%; border-radius: 99px;
  background: var(--gradient-main); animation: pdf-slide 1.3s var(--ease-inout) infinite; will-change: transform;
}
@keyframes pdf-spin { to { transform: rotate(360deg); } }
@keyframes pdf-bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
@keyframes pdf-slide { 0% { transform: translateX(-130%); } 100% { transform: translateX(330%); } }
@keyframes pdf-dots { 0% { content: ''; } 25% { content: '.'; } 50% { content: '..'; } 75% { content: '...'; } }
@media (prefers-reduced-motion: reduce) {
  .pdf-wait__ring, .pdf-wait__emoji, .pdf-wait__bar::before, .pdf-wait__dots::after { animation: none; }
  .pdf-wait.show .pdf-wait__card { transform: none; }
}

/* ----------------------------------------------------------------------------
 * 12. RESPONSIVE — ajustes finos
 * -------------------------------------------------------------------------- */
@media (max-width: 640px) {
  .welcome-content { border-radius: var(--radius-lg); }
  .sfx-toggle { transform: none; }
  body::before { animation-duration: 36s; }   /* menos trabajo en móvil */
}

/* ----------------------------------------------------------------------------
 * 13. ACCESIBILIDAD — respeta prefers-reduced-motion
 * -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  body::before { animation: none !important; }
  .btn-start::after, .btn-next::after, .btn-submit::after { display: none; }
  * { scroll-behavior: auto !important; }
}