/* ====================================================
   styles.css — El nuevo creador técnico
   Sistema visual editorial. Sin frameworks externos.
   Paleta: design/04-guidelines/palette.css
   ==================================================== */

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

:root {
  /* — Paleta editorial — */
  --ink:          #14110D;
  --paper:        #F2EDE3;
  --copper:       #B9824B;
  --paper-warm:   #EBE4D3;
  --copper-lit:   #D4A571;
  --copper-deep:  #7A4A1D;
  --ink-soft:     #3B362D;
  --ink-mute:     #6B6457;
  --hairline:     rgba(20, 17, 13, 0.22);
  --hairline-dk:  rgba(242, 237, 227, 0.22);

  /* — Tipografía — */
  --f-serif: "Spectral", Georgia, "Times New Roman", serif;
  --f-sans:  "Geist", "Inter", system-ui, -apple-system, sans-serif;
  --f-mono:  "JetBrains Mono", ui-monospace, monospace;

  /* — Layout — */
  --max-w:       660px;
  --max-w-wide:  960px;
  --radius:      2px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--f-sans);
  background-color: var(--paper);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ---- Containers ---- */

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.4rem;
}

.container-wide {
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0 1.4rem;
}

/* ---- Sections ---- */

section {
  padding: 4.5rem 0;
}

section:nth-child(even) {
  background: var(--paper-warm);
}

/* ---- Typography ---- */

h1 {
  font-family: var(--f-serif);
  font-size: clamp(3rem, 7vw, 4.8rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
  color: var(--ink);
}

h1 em {
  font-style: italic;
  font-weight: 200;
  color: var(--copper-deep);
}

h2 {
  font-family: var(--f-serif);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin-bottom: 1rem;
  color: var(--ink);
}

h3 {
  font-family: var(--f-sans);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.4rem;
  color: var(--ink);
  letter-spacing: 0.005em;
}

p {
  margin-bottom: 0.9rem;
  color: var(--ink-soft);
}

p:last-child {
  margin-bottom: 0;
}

p strong {
  color: var(--ink);
  font-weight: 600;
}

em {
  font-style: italic;
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--copper-deep);
  opacity: 1;
}

/* ---- Eyebrow ---- */

.eyebrow {
  font-family: var(--f-mono);
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: var(--copper-deep);
  margin-bottom: 0.85rem;
}

/* ---- Hero ---- */

#hero {
  padding-top: 5.5rem;
  padding-bottom: 5rem;
  background: var(--paper);
  border-bottom: 1px solid var(--hairline);
}

.subtitle {
  font-family: var(--f-sans);
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin-bottom: 1.75rem;
  line-height: 1.6;
}

/* ---- Price ---- */

.price-block {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin-bottom: 0.35rem;
}

.price-launch {
  font-family: var(--f-sans);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.price-label {
  font-family: var(--f-sans);
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--copper);
  border: 1px solid var(--copper);
  padding: 0.1rem 0.38rem;
  border-radius: 1px;
  vertical-align: middle;
}

.price-normal {
  font-size: 0.88rem;
  color: var(--ink-mute);
  text-decoration: line-through;
}

.price-note {
  font-size: 0.8rem;
  color: var(--ink-mute);
  margin-top: 0.2rem;
  margin-bottom: 0;
}

/* ---- Forms ---- */

.email-form {
  margin-top: 1.75rem;
}

.email-form label {
  display: block;
  font-family: var(--f-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.6rem;
}

.form-row {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.form-row input[type="email"] {
  flex: 1 1 190px;
  font-family: var(--f-sans);
  font-size: 0.95rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s;
}

.form-row input[type="email"]:focus {
  border-color: var(--copper);
}

.form-row input[type="email"]::placeholder {
  color: var(--ink-mute);
  opacity: 0.55;
}

.privacy-note {
  font-size: 0.77rem;
  color: var(--ink-mute);
  margin-top: 0.55rem;
  line-height: 1.45;
}

.sample-direct-link {
  font-size: 0.9rem;
  color: var(--ink-mute);
  margin-top: 1.2rem;
  text-align: center;
}

.sample-direct-link a {
  color: var(--copper);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- Buttons ---- */

.btn-primary {
  font-family: var(--f-sans);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.65rem 1.3rem;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: 0.025em;
  transition: background 0.15s;
  line-height: 1;
}

.btn-primary:hover {
  background: var(--ink-soft);
  border-color: var(--ink-soft);
}

.btn-secondary {
  display: inline-block;
  margin-top: 0.9rem;
  font-family: var(--f-sans);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-mute);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.btn-secondary:hover {
  color: var(--copper-deep);
  opacity: 1;
}

/* ---- Partes ---- */

.partes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 1.75rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--hairline);
}

.parte-card {
  background: #fff;
  padding: 1.3rem 1.4rem;
}

.parte-num {
  display: block;
  font-family: var(--f-sans);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--copper-lit);
  line-height: 1;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.parte-card h3 {
  font-size: 0.9rem;
  margin-bottom: 0.45rem;
  color: var(--ink);
}

.parte-card p {
  font-size: 0.85rem;
  color: var(--ink-mute);
  line-height: 1.55;
  margin-bottom: 0;
}

/* ---- Para quién ---- */

.para-quien-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

ul {
  padding-left: 1.1rem;
}

ul li {
  margin-bottom: 0.55rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

ul li:last-child {
  margin-bottom: 0;
}

ul.list-no {
  list-style: none;
  padding-left: 0;
}

ul.list-no li::before {
  content: '\2014';
  margin-right: 0.5rem;
  color: var(--ink-mute);
}

/* ---- Qué incluye ---- */

.incluye-grid {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 1.5rem;
}

.incluye-grid li {
  background: #fff;
  padding: 1.1rem 1.3rem;
  margin: 0;
}

.incluye-grid li strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.3rem;
}

.incluye-grid li span {
  font-size: 0.82rem;
  color: var(--ink-mute);
  line-height: 1.5;
}

/* ---- FAQ ---- */

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 1.5rem;
  border-top: 1px solid var(--hairline);
}

.faq-item {
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--hairline);
}

.faq-item h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--ink);
}

.faq-item p {
  font-size: 0.88rem;
  color: var(--ink-mute);
  margin-bottom: 0;
}

/* ---- CTA final ---- */

#cta-final {
  background: var(--ink);
}

#cta-final h2 {
  color: var(--paper);
}

#cta-final p {
  color: rgba(242, 237, 227, 0.6);
}

.cta-final-desc {
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

#cta-final .price-launch {
  color: var(--paper);
}

#cta-final .price-label {
  border-color: var(--copper-lit);
  color: var(--copper-lit);
}

#cta-final .price-normal {
  color: rgba(242, 237, 227, 0.3);
}

#cta-final .price-note {
  color: rgba(242, 237, 227, 0.4);
}

#cta-final .email-form label {
  color: var(--paper);
}

#cta-final .form-row input[type="email"] {
  background: rgba(242, 237, 227, 0.06);
  border-color: var(--hairline-dk);
  color: var(--paper);
}

#cta-final .form-row input[type="email"]::placeholder {
  color: rgba(242, 237, 227, 0.25);
  opacity: 1;
}

#cta-final .form-row input[type="email"]:focus {
  border-color: var(--copper-lit);
}

#cta-final .btn-primary {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}

#cta-final .btn-primary:hover {
  background: var(--paper-warm);
  border-color: var(--paper-warm);
}

#cta-final .privacy-note {
  color: rgba(242, 237, 227, 0.3);
}

.cta-muestra-link {
  font-size: 0.83rem;
  margin-top: 1rem;
}

#cta-final .cta-muestra-link {
  color: rgba(242, 237, 227, 0.4);
}

#cta-final a {
  color: var(--copper-lit);
  text-decoration-color: var(--copper-lit);
}

#cta-final a:hover {
  color: var(--copper-lit);
  opacity: 0.75;
}

/* ---- Footer ---- */

footer {
  background: var(--paper-warm);
  border-top: 1px solid var(--hairline);
  padding: 2rem 0;
  text-align: center;
}

.disclaimer {
  font-size: 0.77rem;
  color: var(--ink-mute);
  margin-bottom: 0.4rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

.copyright {
  font-size: 0.77rem;
  color: var(--ink-mute);
  margin-bottom: 0;
}

/* ---- Responsive — 600px ---- */

@media (min-width: 600px) {
  .partes-grid {
    grid-template-columns: 1fr 1fr;
  }

  .para-quien-grid {
    grid-template-columns: 1fr 1fr;
  }

  .incluye-grid {
    grid-template-columns: 1fr 1fr;
  }

  .incluye-grid li:last-child {
    grid-column: 1 / -1;
  }
}

/* ---- Responsive — 860px ---- */

@media (min-width: 860px) {
  .partes-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}