/* ==========================================================================
   HELPY — estilos de la landing y el generador
   ========================================================================== */

:root {
  --black: #000000;
  --deep: #050a05;
  --yellow: #D4FF00;
  --cyan: #00FFD1;
  --dark-card: #0a120a;
  --border: rgba(0, 255, 209, 0.15);
  --text: #e0ffe8;
  --muted: rgba(224, 255, 232, 0.75);
  --error: #ff6b6b;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--text);
  font-family: 'Rajdhani', 'Inter', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
}

:focus-visible { outline: 2px solid var(--yellow); outline-offset: 3px; }

[hidden] { display: none !important; }


/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 48px;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 22px; font-weight: 900;
  color: var(--yellow);
  letter-spacing: 4px;
  text-decoration: none;
  display: flex; align-items: center; gap: 10px;
}
.nav-logo .bolt { color: var(--cyan); font-size: 20px; }
.nav-links { display: flex; gap: 36px; }
.nav-links a {
  color: var(--muted); text-decoration: none;
  font-family: 'Rajdhani', sans-serif; font-weight: 600;
  font-size: 13px; letter-spacing: 2px; text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--cyan); }
.nav-cta {
  background: var(--yellow); color: #000;
  font-family: 'Orbitron', sans-serif; font-weight: 700;
  font-size: 11px; letter-spacing: 2px;
  padding: 10px 22px; border: none; cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.2s, transform 0.1s;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
}
.nav-cta:hover { background: var(--cyan); transform: translateY(-1px); }

/* ── BOTONES ── */
.btn-primary, .btn-outline {
  font-family: 'Orbitron', sans-serif; font-weight: 700;
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  padding: 16px 36px; cursor: pointer;
  text-decoration: none; display: inline-block;
  clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
  transition: all 0.2s;
}
.btn-primary { background: var(--yellow); color: #000; border: none; }
.btn-primary:hover { background: var(--cyan); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--cyan); border: 1px solid var(--cyan); }
.btn-outline:hover { background: rgba(0, 255, 209, 0.1); transform: translateY(-2px); }
.btn-lg { font-size: 13px; padding: 20px 48px; }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  padding: 120px 24px 80px;
}
.hero-waves { position: absolute; inset: 0; pointer-events: none; }
.hero-waves svg { width: 100%; height: 100%; }
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 820px; }
.hero-eyebrow {
  display: inline-block;
  font-family: 'Rajdhani', sans-serif; font-weight: 600;
  font-size: 12px; letter-spacing: 4px; text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid var(--cyan);
  padding: 6px 18px; margin-bottom: 32px;
  clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
}
.hero-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(56px, 12vw, 128px);
  font-weight: 900;
  color: var(--yellow);
  letter-spacing: -2px;
  line-height: 0.9;
  margin-bottom: 28px;
  text-shadow: 0 0 80px rgba(212, 255, 0, 0.3);
}
.hero-sub {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(16px, 2.5vw, 22px);
  color: var(--cyan);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero-desc {
  color: var(--muted);
  font-size: 16px; line-height: 1.75;
  max-width: 580px; margin: 0 auto 48px;
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.scan-line {
  position: absolute; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  animation: scan 4s ease-in-out infinite;
  pointer-events: none; z-index: 3; opacity: 0.4;
}
@keyframes scan {
  0% { top: 0; opacity: 0; }
  10% { opacity: 0.4; }
  90% { opacity: 0.4; }
  100% { top: 100%; opacity: 0; }
}

/* ── SECCIONES ── */
section { padding: 100px 48px; }
.section-label {
  font-family: 'Rajdhani', sans-serif; font-weight: 600;
  font-size: 12px; letter-spacing: 4px; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 14px;
}
.section-title {
  font-family: 'Orbitron', sans-serif; font-weight: 900;
  font-size: clamp(28px, 5vw, 52px);
  color: var(--yellow);
  line-height: 1.05;
  margin-bottom: 24px;
}
.section-body {
  color: var(--muted); font-size: 17px;
  line-height: 1.8; max-width: 600px;
}
.section-body + .section-body { margin-top: 1.2em; }
.section-body strong { color: var(--cyan); }
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--yellow), transparent);
  opacity: 0.3; margin: 0 48px;
}
.inner { max-width: 1100px; margin: 0 auto; }

/* ── OBJETIVO ── */
.objetivo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
  max-width: 1200px; margin: 0 auto;
}
.objetivo-visual { display: flex; justify-content: center; align-items: center; }
.objetivo-visual-inner { position: relative; width: min(420px, 100%); }
.objetivo-img-wrap {
  position: relative;
  border-radius: 50%; overflow: hidden;
  width: 100%; aspect-ratio: 1;
  border: 2px solid var(--cyan);
  box-shadow: 0 0 60px rgba(0, 255, 209, 0.2);
}
.objetivo-img-wrap svg { display: block; width: 100%; height: 100%; }
.objetivo-img-wrap::after {
  content: '';
  position: absolute; inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 70% 30%, rgba(0, 255, 209, 0.08), transparent 60%);
}
.objetivo-rings, .objetivo-rings-2 {
  position: absolute; border-radius: 50%;
  animation: pulse 3s ease-in-out infinite;
}
.objetivo-rings { inset: -20px; border: 1px solid rgba(0, 255, 209, 0.15); }
.objetivo-rings-2 { inset: -40px; border: 1px solid rgba(212, 255, 0, 0.08); animation-delay: 1s; }
@keyframes pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.02); }
}

/* ── CÓMO FUNCIONA ── */
#como { background: var(--deep); }
.steps {
  list-style: none;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 32px; margin-top: 60px;
}
.step-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  padding: 40px 32px;
  clip-path: polygon(16px 0%, 100% 0%, calc(100% - 16px) 100%, 0% 100%);
  transition: border-color 0.3s, transform 0.2s;
}
.step-card:hover { border-color: var(--cyan); transform: translateY(-4px); }
.step-num {
  font-family: 'Orbitron', sans-serif; font-weight: 900;
  font-size: 56px; color: var(--yellow);
  opacity: 0.15; line-height: 1;
  margin-bottom: 16px;
}
.step-icon { font-size: 32px; margin-bottom: 16px; }
.step-title {
  font-family: 'Orbitron', sans-serif; font-weight: 700;
  font-size: 14px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 12px;
}
.step-text { color: var(--muted); font-size: 15px; line-height: 1.7; }

/* ── GENERADOR ── */
#generador .inner { max-width: 960px; }
.gen-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; margin-top: 48px; align-items: start;
}
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-family: 'Rajdhani', sans-serif; font-weight: 600;
  font-size: 12px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 8px;
}
.form-hint { display: block; font-size: 13px; color: var(--muted); margin-top: 6px; }
.form-input {
  width: 100%;
  background: var(--dark-card);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: 'Rajdhani', sans-serif; font-size: 16px;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.2s;
  clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
}
.form-input:focus { border-color: var(--cyan); }
.form-input[aria-invalid="true"] { border-color: var(--error); }
textarea.form-input { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-error { min-height: 1.4em; color: var(--error); font-size: 14px; margin-top: 12px; }

.qr-warning {
  background: rgba(212, 255, 0, 0.08);
  border: 1px solid rgba(212, 255, 0, 0.3);
  padding: 12px 16px;
  font-size: 13px; color: var(--yellow);
  letter-spacing: 0.5px; line-height: 1.5;
  margin-top: 8px;
  clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
}
.btn-generate {
  width: 100%;
  background: var(--yellow); color: #000;
  font-family: 'Orbitron', sans-serif; font-weight: 900;
  font-size: 13px; letter-spacing: 3px; text-transform: uppercase;
  padding: 18px 32px; border: none; cursor: pointer;
  clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
  transition: all 0.2s; margin-top: 16px;
}
.btn-generate:hover { background: var(--cyan); transform: translateY(-2px); }

/* ── Asistente en pasos ── */
#qr-form { scroll-margin-top: 90px; }
.stepper {
  list-style: none;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px;
  margin-bottom: 28px;
}
.stepper-btn {
  width: 100%;
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
  background: none; border: none; cursor: pointer;
  border-top: 3px solid var(--border);
  padding: 10px 0 0;
  color: var(--muted); text-align: left;
  font-family: 'Rajdhani', sans-serif; font-weight: 600;
  font-size: 13px; letter-spacing: 1px; text-transform: uppercase;
  transition: color 0.2s, border-color 0.2s;
}
.stepper-btn:disabled { cursor: default; opacity: 0.5; }
.stepper-btn.is-done { border-top-color: var(--cyan); color: var(--cyan); }
.stepper-btn.is-current { border-top-color: var(--yellow); color: var(--yellow); }
.stepper-btn:not(:disabled):hover { color: var(--text); }
.stepper-num {
  font-family: 'Orbitron', sans-serif; font-weight: 900; font-size: 12px;
  width: 24px; height: 24px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid currentColor; border-radius: 50%;
}

.step { border: none; min-width: 0; }
.step-title {
  font-family: 'Orbitron', sans-serif; font-weight: 700;
  font-size: 18px; letter-spacing: 1px;
  color: var(--text); margin-bottom: 20px;
}
.step-title:focus { outline: none; }
.step-intro { color: var(--muted); font-size: 15px; margin: -8px 0 20px; }

.step-nav { display: flex; gap: 12px; margin-top: 8px; }
.step-nav .btn-generate { flex: 1; margin-top: 0; }
.btn-back {
  background: transparent; color: var(--cyan);
  font-family: 'Orbitron', sans-serif; font-weight: 700;
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  padding: 18px 22px; border: 1px solid var(--cyan); cursor: pointer;
  clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
  transition: background 0.2s;
}
.btn-back:hover { background: rgba(0, 255, 209, 0.1); }

/* Resumen del último paso */
.review { display: grid; gap: 12px; }
.review-section {
  background: var(--dark-card);
  border: 1px solid var(--border);
  padding: 16px 18px;
}
.review-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.review-title {
  font-family: 'Rajdhani', sans-serif; font-weight: 600;
  font-size: 12px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--cyan);
}
.review-edit {
  background: none; border: none; cursor: pointer;
  color: var(--yellow); font: inherit; font-size: 15px; font-weight: 600;
  text-decoration: underline; text-underline-offset: 3px;
}
.review-edit:hover { color: var(--cyan); }
.review dl div { display: grid; grid-template-columns: 130px 1fr; gap: 12px; padding: 4px 0; }
.review dt { color: var(--muted); font-size: 15px; }
.review dd { color: var(--text); font-size: 16px; font-weight: 600; white-space: pre-line; overflow-wrap: anywhere; }
.review-empty { color: var(--muted); font-size: 15px; }

/* Tag NFC */
.nfc {
  width: 100%;
  display: grid; gap: 10px;
  padding: 16px; margin-top: 4px;
  border: 1px solid var(--border);
}
.nfc-title {
  font-size: 12px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--cyan); font-weight: 600;
}
.nfc-size, .nfc-hint { font-size: 14px; color: var(--muted); }
.nfc-row { display: flex; align-items: center; gap: 12px; }
.nfc-row .btn-download { flex: 1; }
.nfc .btn-download { width: 100%; }
.nfc-msg { font-size: 14px; color: var(--text); }
.nfc-msg:empty { display: none; }
.nfc-msg.is-error { color: var(--error); }
#nfc-lock-box { display: grid; gap: 10px; }
#nfc-lock-box[hidden] { display: none; }
.nfc .btn-new { justify-self: start; }

/* Consentimiento */
.consent {
  display: grid; gap: 14px;
  margin-top: 20px; padding: 18px;
  border: 1px solid rgba(212, 255, 0, 0.3);
  background: rgba(212, 255, 0, 0.05);
}
.consent-title {
  font-size: 12px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--yellow); font-weight: 600;
}
.consent .form-check { align-items: flex-start; line-height: 1.45; }
.consent .form-check input { flex-shrink: 0; margin-top: 2px; }
.consent .form-check a { color: var(--yellow); text-underline-offset: 3px; }
.consent .form-check a:hover { color: var(--cyan); }
.consent .form-check:has(input[aria-invalid="true"]) span { color: var(--error); }
.review-section.is-excluded dl { opacity: 0.45; text-decoration: line-through; }
.review-excluded { color: var(--yellow); font-size: 14px; margin-top: 8px; }

.btn-new {
  background: none; border: none; cursor: pointer;
  color: var(--muted); font: inherit; font-size: 15px;
  text-decoration: underline; text-underline-offset: 3px;
}
.btn-new:hover { color: var(--cyan); }

/* Medidor de densidad del QR */
.density { margin-top: 20px; }
.density-head {
  display: flex; justify-content: space-between;
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--muted); margin-bottom: 6px;
}
.density-value { color: var(--text); font-weight: 600; }
.density-bar { height: 6px; background: var(--dark-card); border: 1px solid var(--border); }
.density-fill { height: 100%; width: 0; background: var(--cyan); transition: width 0.2s, background 0.2s; }
.density[data-level="media"] .density-fill { background: var(--yellow); }
.density[data-level="alta"] .density-fill,
.density[data-level="excedida"] .density-fill { background: var(--error); }
.density-msg { font-size: 13px; color: var(--muted); margin-top: 6px; }

/* Panel de salida */
.qr-output {
  background: var(--dark-card);
  border: 1px solid var(--border);
  padding: 40px;
  display: flex; flex-direction: column;
  align-items: center; gap: 20px;
  clip-path: polygon(16px 0%, 100% 0%, calc(100% - 16px) 100%, 0% 100%);
  position: sticky; top: 100px;
}
.qr-placeholder {
  width: 220px; height: 220px;
  border: 2px dashed rgba(0, 255, 209, 0.3);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 12px;
  color: var(--muted); font-size: 14px; text-align: center;
}
.qr-placeholder-icon { font-size: 48px; }
.qr-result { display: flex; flex-direction: column; align-items: center; gap: 16px; width: 100%; }
.qr-image { background: #fff; padding: 16px; width: 252px; }
.qr-image svg { display: block; width: 100%; height: auto; }
.qr-info { font-size: 13px; color: var(--muted); text-align: center; letter-spacing: 1px; }
.qr-info strong { color: var(--yellow); font-size: 15px; }
.qr-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; width: 100%; }
.btn-download {
  background: transparent; color: var(--cyan);
  font-family: 'Orbitron', sans-serif; font-weight: 700;
  font-size: 11px; letter-spacing: 2px; text-transform: uppercase;
  padding: 14px 12px; border: 1px solid var(--cyan);
  cursor: pointer;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  transition: background 0.2s;
}
.btn-download:hover { background: rgba(0, 255, 209, 0.1); }
.qr-help { color: var(--muted); font-size: 13px; text-align: center; }
.btn-preview {
  color: var(--yellow); font-size: 15px; font-weight: 600;
  text-align: center; text-decoration: underline; text-underline-offset: 3px;
}
.btn-preview:hover { color: var(--cyan); }
.btn-print-link {
  display: block; width: 100%; text-align: center; text-decoration: none;
  background: var(--yellow); color: #000;
  font-family: 'Orbitron', sans-serif; font-weight: 700;
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  padding: 16px 12px;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  transition: background 0.2s;
}
.btn-print-link:hover { background: var(--cyan); }
.qr-local-warning {
  background: rgba(255, 107, 107, 0.08);
  border: 1px solid rgba(255, 107, 107, 0.4);
  color: var(--error); font-size: 13px; line-height: 1.5;
  padding: 10px 14px; overflow-wrap: anywhere;
}

.form-hint-row { margin: -8px 0 16px; }
.form-check {
  display: flex; align-items: center; gap: 10px;
  font-size: 16px; color: var(--text); cursor: pointer;
}
.form-check input { width: 20px; height: 20px; accent-color: var(--yellow); }

/* ── CARACTERÍSTICAS ── */
#features { background: var(--deep); }
.features-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 24px; margin-top: 60px;
}
.feature-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  padding: 32px 28px;
  display: flex; gap: 20px;
  transition: border-color 0.3s, transform 0.2s;
}
.feature-card:hover { border-color: var(--yellow); transform: translateY(-3px); }
.feature-icon {
  font-size: 28px; flex-shrink: 0;
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(212, 255, 0, 0.08);
  border: 1px solid rgba(212, 255, 0, 0.2);
}
.feature-title {
  font-family: 'Orbitron', sans-serif; font-weight: 700;
  font-size: 13px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--yellow); margin-bottom: 8px;
}
.feature-text { color: var(--muted); font-size: 15px; line-height: 1.6; }

/* ── CTA ── */
#cta {
  background: linear-gradient(135deg, #0a120a 0%, #000 100%);
  text-align: center;
  border-top: 1px solid var(--border);
  padding: 120px 48px;
}
#cta .section-title { font-size: clamp(30px, 6vw, 64px); }
.cta-sub { color: var(--muted); max-width: 500px; margin: 0 auto 48px; font-size: 17px; }

/* ── FOOTER ── */
footer {
  background: #000; border-top: 1px solid var(--border);
  padding: 40px 48px;
  display: flex; align-items: center; justify-content: space-between;
}
.footer-logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 18px; font-weight: 900; color: var(--yellow);
  letter-spacing: 4px;
}
.footer-copy { color: var(--muted); font-size: 13px; letter-spacing: 1px; }
.footer-tag { color: var(--cyan); font-size: 13px; letter-spacing: 1px; }
.footer-copy a { color: var(--muted); text-underline-offset: 3px; }
.footer-copy a:hover { color: var(--cyan); }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .objetivo-grid { grid-template-columns: 1fr; gap: 64px; }
  .objetivo-visual-inner { width: min(320px, 80%); }
  .steps { grid-template-columns: 1fr; }
  .gen-grid { grid-template-columns: 1fr; }
  .qr-output { position: static; }
}

@media (max-width: 768px) {
  .stepper-label { font-size: 11px; letter-spacing: 0.5px; }
  .review dl div { grid-template-columns: 1fr; gap: 0; }
  .btn-back { padding: 18px 16px; }
  nav { padding: 14px 20px; }
  section { padding: 72px 20px; }
  #cta { padding: 88px 20px; }
  .divider { margin: 0 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .features-grid { grid-template-columns: 1fr; }
  .qr-output { padding: 28px 20px; }
  .btn-lg { padding: 18px 28px; }
  footer { flex-direction: column; gap: 12px; text-align: center; padding: 32px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scan-line, .objetivo-rings, .objetivo-rings-2 { animation: none; }
}

/* Enlace a la guía */
.steps-more { margin-top: 28px; }
.steps-more a { color: var(--yellow); font-weight: 600; text-underline-offset: 3px; }
.steps-more a:hover { color: var(--cyan); }
.nfc-hint a { color: var(--yellow); text-underline-offset: 3px; }