/* ============================================================
   HablemosDeCuckolding.com — style.css
   Editorial dark theme · Responsive · Accessible
   ============================================================ */

/* ----- Variables ----- */
:root {
  --color-bg:        #0e0e12;
  --color-surface:   #1a1a24;
  --color-surface2:  #242432;
  --color-border:    #2e2e3e;
  --color-text:      #e4e4ec;
  --color-text-muted:#9898b0;
  --color-accent:    #c9a84c;
  --color-accent2:   #4ca88c;
  --color-danger:    #c44;
  --color-hero:      #14141e;
  --font-sans:       'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif:      Georgia, 'Times New Roman', serif;
  --max-width:       1120px;
  --radius:          8px;
  --transition:      0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #d4b85c; }
ul { list-style: none; }

/* ----- Utility ----- */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* ----- Buttons ----- */
.btn {
  display: inline-block;
  padding: 0.7em 1.6em;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-align: center;
}
.btn-primary {
  background: var(--color-accent);
  color: #111;
  border-color: var(--color-accent);
}
.btn-primary:hover { background: #d4b85c; border-color: #d4b85c; color: #111; }
.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-outline:hover { background: var(--color-accent); color: #111; }
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
  padding: 0.4em 1em;
  font-size: 0.85rem;
}
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ----- Header / Nav ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14,14,18,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
}
.logo-icon { font-size: 1.4rem; color: var(--color-accent); }
.logo-text { letter-spacing: -0.01em; }

.nav-menu {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.nav-menu a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.3em 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}
.nav-menu a:hover,
.nav-menu a:focus { color: var(--color-text); border-bottom-color: var(--color-accent); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5em;
}
.hamburger, .hamburger::before, .hamburger::after {
  display: block; width: 24px; height: 2px;
  background: var(--color-text); border-radius: 2px;
  transition: transform var(--transition);
}
.hamburger { position: relative; }
.hamburger::before, .hamburger::after { content: ''; position: absolute; left: 0; }
.hamburger::before { top: -7px; }
.hamburger::after  { top: 7px; }

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding: 5rem 0 4rem;
  background: var(--color-hero);
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 30%, rgba(201,168,76,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; text-align: center; padding-top: 2rem; }
.hero-badge {
  display: inline-block;
  padding: 0.3em 1em;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 2rem;
}
.hero-subtitle strong { color: var(--color-text); }
.consent-declaration {
  text-align: left;
  max-width: 700px;
  margin: 2.5rem auto 0;
  padding: 1.8rem 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.consent-declaration h2 {
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
  color: var(--color-accent);
}
.consent-declaration p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  margin-bottom: 0.6rem;
}
.consent-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.2rem;
  flex-wrap: wrap;
}

/* ----- Section common ----- */
section { padding: 5rem 0; }
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  text-align: center;
  margin-bottom: 0.5rem;
}
.section-lead {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto 3rem;
}

/* ----- Cuatro principios ----- */
.principios { background: var(--color-bg); }
.principios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}
.principio-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition);
}
.principio-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}
.principio-icon {
  font-size: 2.2rem;
  margin-bottom: 0.8rem;
  color: var(--color-accent);
}
.principio-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
.principio-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ----- Explora ----- */
.explora { background: var(--color-surface); }
.explora-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.2rem;
}
.explora-card {
  display: block;
  padding: 2rem 1.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-align: center;
  transition: all var(--transition);
  color: var(--color-text);
}
.explora-card:hover {
  border-color: var(--color-accent2);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.explora-icon { font-size: 2rem; margin-bottom: 0.6rem; }
.explora-card h3 { font-size: 1rem; margin-bottom: 0.4rem; }
.explora-card p { font-size: 0.85rem; color: var(--color-text-muted); }

/* ----- Checklist ----- */
.checklist-section { background: var(--color-bg); }
.checklist-intro {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}
.checklist-form {
  max-width: 720px;
  margin: 0 auto;
}
.checklist-form fieldset {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.2rem;
}
.checklist-form legend {
  font-weight: 600;
  padding: 0 0.5rem;
  color: var(--color-accent);
}
.check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.55rem 0;
  cursor: pointer;
  font-size: 0.92rem;
}
.check-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px; height: 20px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.check-item input[type="checkbox"]:checked {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.check-item input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #111;
}
.checklist-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}
.checklist-count {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

/* ----- FAQ ----- */
.faq { background: var(--color-surface); }
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 0;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}
.faq-question:hover { color: var(--color-accent); }
.faq-icon {
  font-size: 1.3rem;
  color: var(--color-text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 1rem;
}
.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
  color: var(--color-accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-answer.open {
  max-height: 300px;
  padding-bottom: 1rem;
}
.faq-answer p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ----- Newsletter ----- */
.newsletter { background: var(--color-bg); }
.newsletter-form {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.form-group { display: flex; flex-direction: column; gap: 0.3rem; }
.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}
.form-group input,
.form-group select {
  padding: 0.7em 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
}
.newsletter-note {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-align: center;
}
.newsletter-msg {
  text-align: center;
  margin-top: 1rem;
  font-weight: 600;
  min-height: 1.5em;
}
.newsletter-msg.success { color: var(--color-accent2); }
.newsletter-msg.error { color: var(--color-danger); }

/* ----- Footer ----- */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  padding-bottom: 2rem;
}
.footer-brand p { color: var(--color-text-muted); font-size: 0.9rem; margin-top: 0.3rem; }
.footer-links h4, .footer-legal h4, .footer-quick h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.8rem;
  color: var(--color-text-muted);
}
.footer-links li, .footer-legal li { margin-bottom: 0.4rem; }
.footer-links a, .footer-legal a { font-size: 0.88rem; color: var(--color-text-muted); }
.footer-links a:hover, .footer-legal a:hover { color: var(--color-accent); }
.footer-quick p { font-size: 0.88rem; color: var(--color-text-muted); margin-bottom: 0.5rem; }
.footer-quick ul { margin-bottom: 0.5rem; }
.footer-quick li { margin-bottom: 0.3rem; }
.footer-quick kbd {
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.1em 0.4em;
  font-size: 0.8rem;
}
.footer-disclaimer { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 0.8rem; }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 1rem 0;
  text-align: center;
}
.footer-bottom p { font-size: 0.78rem; color: var(--color-text-muted); }

/* ----- Back to top ----- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  z-index: 90;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.back-to-top:hover { background: var(--color-accent); color: #111; }

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-menu {
    position: fixed;
    top: 60px; left: 0; right: 0;
    background: rgba(14,14,18,0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    transition: transform var(--transition);
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu a { font-size: 1rem; }
  .hero { min-height: auto; padding: 3rem 0 2.5rem; }
  .consent-declaration { padding: 1.2rem; }
  .consent-actions { flex-direction: column; }
  section { padding: 3rem 0; }
  .checklist-actions { flex-direction: column; align-items: stretch; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .principios-grid { grid-template-columns: 1fr; }
  .explora-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}