/* ==========================================================================
   Web al Día — hoja de estilos única
   Paleta:  papel #FAFAF7 · tinta #14161A · gris #5A6068 · filete #E4E3DD
            acento azul tinta #1B3A6B
   Tipos:   Newsreader (titulares) · Instrument Sans (todo lo demás)
   Sin animaciones de entrada: nada puede quedarse invisible.
   ========================================================================== */

:root {
  --paper:      #FAFAF7;
  --paper-2:    #F2F1EC;
  --ink:        #14161A;
  --ink-soft:   #5A6068;
  --ink-mute:   #8A8F96;
  --rule:       #E4E3DD;
  --accent:     #1B3A6B;
  --accent-2:   #E9EDF4;

  --serif: "Newsreader", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans:  "Instrument Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --shell: 1120px;
  --gutter: clamp(20px, 5vw, 56px);
  --section-y: clamp(72px, 9vw, 130px);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

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

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 12px 18px;
  z-index: 100;
  text-decoration: none;
  font-size: 14px;
}
.skip:focus { left: 12px; top: 12px; }

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- Tipografía -------------------------------------------------- */

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  margin: 0;
  letter-spacing: -0.02em;
  font-optical-sizing: auto;
}

/* Titular de portada: una sola tipografía. La última palabra va cambiando. */
h1 {
  font-size: clamp(2.6rem, 5.8vw, 4.4rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  max-width: 15ch;
}

.h1-fija,
.h1-cambia { display: block; }

.h1-cambia {
  color: var(--accent);
  transition: opacity 0.4s var(--ease);
}
.h1-cambia.esta-cambiando { opacity: 0.12; }

h2 {
  font-size: clamp(1.9rem, 3.8vw, 2.9rem);
  line-height: 1.1;
}

h3 { font-size: 1.3rem; line-height: 1.3; }

p { margin: 0 0 1.05em; }
p:last-child { margin-bottom: 0; }

.eyebrow {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 20px;
}

.lede {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 48ch;
}

/* ---------- Botones y enlaces ------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  padding: 15px 28px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}
.btn:hover { background: var(--accent); border-color: var(--accent); }

.btn-sm { padding: 10px 20px; font-size: 0.88rem; }
.btn-block { width: 100%; padding-block: 17px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  padding-block: 4px;
  border-bottom: 1px solid var(--rule);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.link-arrow::after { content: "→"; }
.link-arrow:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- Cabecera ---------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}
.site-header.is-stuck { border-bottom-color: var(--rule); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.wordmark {
  font-family: var(--serif);
  font-size: 1.3rem;
  letter-spacing: -0.025em;
  text-decoration: none;
  white-space: nowrap;
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
}
.wordmark-mark {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.site-nav { display: flex; gap: 30px; }
.site-nav a {
  font-size: 0.93rem;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.3s var(--ease);
}
.site-nav a:hover { color: var(--ink); }

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

.hero {
  padding-block: clamp(64px, 10vw, 128px) clamp(56px, 8vw, 104px);
}

.hero .lede { margin-top: 28px; }

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  margin-top: 40px;
}

/* Página de gracias: mismo aire que la portada, sin nada más. */
.gracias {
  padding-block: clamp(72px, 12vw, 150px) clamp(72px, 12vw, 160px);
  min-height: 56vh;
}
.gracias .lede { margin-top: 26px; }

/* ---------- Tira de valores: cuatro celdas, no cuatro etiquetas -------- */

.strip {
  background: var(--paper-2);
  border-block: 1px solid var(--rule);
}

.strip-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.strip-item {
  padding: clamp(26px, 3vw, 34px) clamp(18px, 2vw, 28px);
  border-left: 1px solid var(--rule);
}
.strip-item:first-child { border-left: none; padding-left: 0; }
.strip-item:last-child { padding-right: 0; }

.strip-title {
  font-family: var(--serif);
  font-size: 1.12rem;
  letter-spacing: -0.015em;
  margin: 0 0 6px;
}

.strip-item p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--ink-soft);
}

/* ---------- Secciones --------------------------------------------------- */

.section { padding-block: var(--section-y); }

.section-tinted {
  background: var(--paper-2);
  border-block: 1px solid var(--rule);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: 18px clamp(32px, 6vw, 72px);
  align-items: end;
  margin-bottom: clamp(44px, 5vw, 64px);
}
.section-head .eyebrow { grid-column: 1 / -1; margin-bottom: 0; }
.section-head h2 { grid-column: 1; }
.section-note {
  grid-column: 2;
  color: var(--ink-soft);
  font-size: 1rem;
  max-width: 40ch;
  margin: 0;
}

/* ---------- Qué hago (tres tarjetas) ------------------------------------ */

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 40px);
}

.card {
  border-top: 1px solid var(--ink);
  padding-top: 24px;
}
.card h3 { margin-bottom: 12px; }
.card p { color: var(--ink-soft); font-size: 0.98rem; }

.scope {
  margin-top: clamp(40px, 5vw, 60px);
  padding-top: clamp(28px, 3vw, 36px);
  border-top: 1px solid var(--rule);
  font-size: 1rem;
  color: var(--ink-soft);
  max-width: 64ch;
}
.scope strong { color: var(--ink); font-weight: 600; }

/* ---------- Cómo trabajo ------------------------------------------------ */

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 48px);
}

.steps li {
  border-top: 1px solid var(--ink);
  padding-top: 22px;
}

.step-num {
  display: block;
  font-family: var(--sans);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.steps h3 { margin-bottom: 10px; }
.steps p { color: var(--ink-soft); font-size: 0.97rem; }

/* ---------- Sobre mí ---------------------------------------------------- */

.about {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.about-lede {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: 24px;
}

.about-body p { color: var(--ink-soft); max-width: 54ch; }
.about-body .link-arrow { margin-top: 14px; }

/* ---------- Preguntas --------------------------------------------------- */

.questions { border-top: 1px solid var(--rule); }

.questions details { border-bottom: 1px solid var(--rule); }

.questions summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 22px;
  cursor: pointer;
  list-style: none;
  font-family: var(--serif);
  font-size: clamp(1.08rem, 1.7vw, 1.25rem);
  letter-spacing: -0.015em;
  transition: color 0.3s var(--ease);
}
.questions summary::-webkit-details-marker { display: none; }
.questions summary:hover { color: var(--accent); }

.questions summary span {
  flex: none;
  position: relative;
  width: 14px;
  height: 14px;
}
.questions summary span::before,
.questions summary span::after {
  content: "";
  position: absolute;
  background: currentColor;
}
.questions summary span::before { top: 6px; left: 0; width: 14px; height: 1.5px; }
.questions summary span::after  { left: 6px; top: 0; width: 1.5px; height: 14px; }
.questions details[open] summary span::after { opacity: 0; }

.questions details p {
  color: var(--ink-soft);
  font-size: 0.99rem;
  max-width: 64ch;
  padding-bottom: 26px;
  margin: 0;
}

/* ---------- Contacto ---------------------------------------------------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
  gap: clamp(36px, 5vw, 80px);
  align-items: start;
}

.contact-copy .lede { margin-top: 22px; }

.contact-direct {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.contact-direct li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-block: 15px;
  border-bottom: 1px solid var(--rule);
}
.contact-direct span {
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.contact-direct a {
  font-size: 1rem;
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.contact-direct a:hover { color: var(--accent); border-color: var(--accent); }

.form {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: clamp(22px, 3vw, 32px);
}

.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.field .opt { font-weight: 400; color: var(--ink-mute); }

.field input,
.field textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 13px 14px;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.field textarea { resize: vertical; min-height: 116px; line-height: 1.5; }

.field input:focus,
.field textarea:focus {
  background: #fff;
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-2);
}

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

.form-note {
  margin: 16px 0 0;
  font-size: 0.82rem;
  color: var(--ink-mute);
  text-align: center;
}

/* ---------- Pie --------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: 32px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
  flex-wrap: wrap;
}
.footer-inner p,
.footer-inner .copy {
  margin: 0;
  font-size: 0.86rem;
  color: var(--ink-mute);
}

/* ---------- Adaptación -------------------------------------------------- */

@media (max-width: 900px) {
  .section-head { grid-template-columns: 1fr; align-items: start; }
  .section-head h2,
  .section-note { grid-column: 1; }
  .section-note { margin-top: 2px; }
  .strip-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .strip-item { border-top: 1px solid var(--rule); }
  .strip-item:nth-child(-n+2) { border-top: none; }
  .strip-item:nth-child(odd) { border-left: none; padding-left: 0; }
  .strip-item:nth-child(even) { padding-right: 0; }
  .cards { grid-template-columns: 1fr; gap: 0; }
  .card { padding-block: 24px 26px; border-top: 1px solid var(--rule); }
  .card:first-child { border-top-color: var(--ink); }
  .steps { grid-template-columns: 1fr; gap: 0; }
  .steps li { padding-block: 24px 26px; border-top: 1px solid var(--rule); }
  .steps li:first-child { border-top-color: var(--ink); }
  .about { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .site-nav { display: none; }
  body { font-size: 16px; }
  h1 { max-width: none; }
  .strip-inner { grid-template-columns: 1fr; }
  .strip-item { border-left: none; padding-inline: 0; }
  .strip-item:first-child { border-top: none; }
  .strip-item + .strip-item { border-top: 1px solid var(--rule); }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 380px) {
  .header-inner { gap: 12px; }
  .hero-actions { gap: 18px; }
  .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

@media print {
  .site-header, .form { display: none; }
}