/* =============================================================
   TAULA de prop — styles.css
   navy + terracota (óxido) + papel crema
   ============================================================= */

:root {
  --paper:     #F7F4EA;
  --paper-2:   #EFE9D8;
  --paper-3:   #E8E1CB;
  --card:      #FFFFFF;
  --ink:       #16233A;
  --ink-2:     #2B3A54;
  --ink-mute:  #5B6472;
  --navy:      #0F1D33;
  --navy-2:    #16283F;
  --navy-3:    #1E344F;
  --cream-on-navy: #F1EDE2;
  --terracota: #A85A2E;
  --terracota-dark: #8A4A24;
  --terracota-soft: rgba(168,90,46,0.10);
  --terracota-soft-2: rgba(168,90,46,0.18);
  --line:      #E3DDC9;
  --line-navy: rgba(241,237,226,0.14);
  --ok:        #5C8A5A;

  --serif: "Libre Caslon Text", "Source Serif 4", Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;

  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

  --nav-h: 74px;
  --container: 1180px;
}

/* Reset & base */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans); font-size: 16px; line-height: 1.65;
  background: var(--paper); color: var(--ink);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.1; letter-spacing: -.01em; font-family: var(--serif); font-weight: 400; color: var(--navy); }
ul { list-style: none; padding: 0; }
::selection { background: var(--terracota); color: #fff; }
:focus-visible { outline: 2px solid var(--terracota); outline-offset: 3px; border-radius: 4px; }

/* Utilities */
.container { max-width: var(--container); margin-inline: auto; padding-inline: 1.5rem; }
.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 9999; padding: .6rem 1rem;
  background: var(--terracota); color: #fff; border-radius: 8px; font-weight: 600;
  transition: top .3s var(--ease-out);
}
.skip-link:focus { top: 1rem; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .6em; font-size: .78rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: var(--terracota);
}
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--terracota); display: inline-block; }
.section { padding-block: clamp(3.5rem, 8vw, 7rem); }
.section-navy { background: var(--navy); color: var(--cream-on-navy); }
.section-navy h1, .section-navy h2, .section-navy h3 { color: var(--cream-on-navy); }
.section-alt { background: var(--paper-2); }
.section-head { max-width: 640px; margin-bottom: clamp(2.2rem, 5vw, 3.4rem); }
.section-head.center { margin-inline: auto; text-align: center; }
.text-mute { color: var(--ink-mute); }
.divider { height: 1px; background: var(--line); border: 0; margin-block: clamp(2rem, 5vw, 3.5rem); }

h1 { font-size: clamp(2.2rem, 4.6vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
p.lead { font-size: clamp(1.02rem, 1.5vw, 1.22rem); color: var(--ink-2); line-height: 1.6; }
em { font-style: italic; color: var(--terracota); font-family: var(--serif); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .55em; padding: .95rem 1.7rem; border-radius: 4px;
  font-size: .95rem; font-weight: 700; letter-spacing: .01em;
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out), background-color .3s var(--ease-out), color .3s var(--ease-out);
  white-space: nowrap;
}
.btn-primary { background: var(--terracota); color: #FBF3EA; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -10px rgba(168,90,46,0.4); background: var(--terracota-dark); }
.btn-ghost { border: 1.5px solid var(--navy); color: var(--navy); }
.btn-ghost:hover { background: var(--navy); color: var(--cream-on-navy); }
.btn-ghost.on-navy { border-color: var(--line-navy); color: var(--cream-on-navy); }
.btn-ghost.on-navy:hover { background: var(--cream-on-navy); color: var(--navy); }
.btn svg { width: 18px; height: 18px; }

/* Nav */
.nav {
  position: fixed; top: 0; inset-inline: 0; z-index: 200; height: var(--nav-h);
  display: flex; align-items: center; background: rgba(247,244,234,0.0);
  transition: background-color .4s var(--ease-out), box-shadow .4s var(--ease-out), border-color .4s var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled { background: rgba(247,244,234,0.92); backdrop-filter: blur(12px); border-color: var(--line); }
.nav-inner { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: flex; align-items: center; gap: .6rem; font-family: var(--serif); font-size: 1.15rem; color: var(--navy); }
.brand-seal { width: 32px; height: 32px; flex-shrink: 0; }
.brand em { color: var(--terracota); font-style: italic; }
.nav-links { display: none; align-items: center; gap: 2rem; font-size: .89rem; }
.nav-links a { position: relative; padding-block: .3rem; color: var(--ink-2); transition: color .3s var(--ease-out); }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -2px; height: 2px; background: var(--terracota); transition: right .35s var(--ease-out); }
.nav-links a:hover::after { right: 0; }
.nav-links a:hover { color: var(--navy); }
.nav-cta { display: none; }
.nav-toggle { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line); }
.nav-toggle span { display: block; width: 17px; height: 1px; background: var(--navy); position: relative; }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; width: 17px; height: 1px; background: var(--navy); }
.nav-toggle span::before { top: -6px; } .nav-toggle span::after { top: 6px; }
.nav-mobile {
  position: fixed; inset: 0; z-index: 190; background: var(--paper);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.8rem;
  clip-path: inset(0 0 100% 0); transition: clip-path .6s var(--ease-soft);
}
.nav-mobile[data-open="true"] { clip-path: inset(0); }
.nav-mobile a { font-family: var(--serif); font-size: 1.5rem; color: var(--navy); }

/* Hero */
.hero {
  min-height: 100svh; display: flex; align-items: center; position: relative; overflow: hidden;
  padding-top: calc(var(--nav-h) + 2rem); padding-bottom: 3rem;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 1000px 600px at 82% 0%, rgba(168,90,46,0.13), transparent 60%),
    radial-gradient(ellipse 800px 500px at 5% 100%, rgba(15,29,51,0.05), transparent 55%),
    var(--paper);
}
.hero-inner { position: relative; z-index: 1; width: 100%; }
.hero .eyebrow { margin-bottom: 1.4rem; }
.hero h1 { max-width: 15ch; margin-bottom: 1.4rem; }
.hero p.lead { max-width: 44ch; margin-bottom: 2.2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2.6rem; }
.hero-plaque {
  display: inline-flex; align-items: center; gap: 1rem; padding: 1rem 1.4rem; background: var(--navy);
  border-radius: 6px; color: var(--cream-on-navy);
}
.hero-plaque .hp-mark { width: 40px; height: 40px; color: var(--terracota); flex-shrink: 0; }
.hero-plaque .hp-t { font-family: var(--serif); font-size: .95rem; }
.hero-plaque .hp-s { font-size: .74rem; color: #C9BFA0; }

/* Cards */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 1.8rem;
  transition: transform .4s var(--ease-soft), box-shadow .4s var(--ease-soft), border-color .4s var(--ease-soft);
}
.card:hover { box-shadow: 0 30px 60px -30px rgba(15,29,51,0.18); border-color: var(--terracota); }
.card .card-num { font-family: var(--serif); font-style: italic; color: var(--terracota); font-size: 1.05rem; }
.card h3 { margin: .6rem 0 .6rem; font-size: 1.1rem; }
.card p { color: var(--ink-mute); font-size: .93rem; }

/* Grids */
.grid-2 { display: grid; gap: clamp(2rem, 5vw, 3.6rem); grid-template-columns: 1fr; align-items: center; }
.grid-3 { display: grid; gap: 1.2rem; grid-template-columns: 1fr; }
.grid-4 { display: grid; gap: 1.1rem; grid-template-columns: 1fr; }

/* Cadena (4 pasos) */
.chain-item { position: relative; }
.chain-num {
  width: 46px; height: 46px; border-radius: 50%; background: var(--navy); color: var(--terracota);
  display: grid; place-items: center; font-family: var(--serif); font-style: italic; margin-bottom: 1rem;
}
.chain-item h3 { font-size: 1.02rem; margin-bottom: .5rem; }
.chain-item p { color: var(--ink-mute); font-size: .9rem; }

/* Anclaje (bloques largos) */
.anclaje {
  display: grid; gap: clamp(2rem, 5vw, 3.5rem); grid-template-columns: 1fr; align-items: start;
  padding-block: clamp(2.5rem, 5vw, 4rem); border-bottom: 1px solid var(--line);
}
.anclaje:last-child { border-bottom: 0; }
.anclaje-num { font-family: var(--serif); font-style: italic; font-size: 2.6rem; color: var(--terracota); line-height: 1; margin-bottom: .8rem; opacity: .5; }
.anclaje h3 { margin-bottom: 1rem; max-width: 22ch; }
.anclaje p.body-text { color: var(--ink-2); margin-bottom: 1.2rem; }
.anclaje-cita {
  border-left: 3px solid var(--terracota); padding-left: 1.1rem; font-family: var(--serif); font-style: italic;
  color: var(--navy); font-size: 1.05rem; line-height: 1.5;
}

/* Contraprestación */
.presta-card { display: flex; gap: 1rem; align-items: flex-start; }
.presta-num {
  width: 36px; height: 36px; border-radius: 50%; border: 1.5px solid var(--terracota); color: var(--terracota);
  display: grid; place-items: center; font-family: var(--serif); font-style: italic; font-size: .95rem; flex-shrink: 0;
}
.presta-card h3 { font-size: 1rem; margin-bottom: .4rem; }
.presta-card p { color: var(--ink-mute); font-size: .88rem; }

/* Accordion (criterios) — native details/summary */
.accordion-item { border-bottom: 1px solid var(--line); padding-block: 1.1rem; }
.accordion-item summary {
  cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; font-family: var(--serif); font-size: 1.1rem; color: var(--navy);
}
.accordion-item summary::-webkit-details-marker { display: none; }
.accordion-item .a-plus {
  width: 28px; height: 28px; border: 1px solid var(--line); border-radius: 50%; flex-shrink: 0;
  display: grid; place-items: center; transition: transform .4s var(--ease-out), border-color .4s var(--ease-out);
}
.accordion-item .a-plus svg { width: 12px; height: 12px; color: var(--terracota); }
.accordion-item[open] summary .a-plus { transform: rotate(45deg); border-color: var(--terracota); }
.accordion-item .a-body { padding-top: 1rem; color: var(--ink-mute); font-size: .93rem; max-width: 68ch; }
.accordion-item .a-body strong { color: var(--ink); }

/* Timeline (itinerario) */
.tl-item { display: grid; grid-template-columns: 50px 1fr; gap: 1.1rem; padding-bottom: 2.6rem; position: relative; }
.tl-item:last-child { padding-bottom: 0; }
.tl-num {
  width: 50px; height: 50px; border-radius: 50%; border: 1.5px solid var(--terracota); color: var(--terracota);
  display: grid; place-items: center; font-family: var(--serif); font-style: italic; font-size: 1.05rem;
  position: relative; z-index: 2; background: var(--paper); flex-shrink: 0;
}
.tl-item::before { content: ""; position: absolute; left: 24px; top: 50px; bottom: -0.8rem; width: 1px; background: var(--line); }
.tl-item:last-child::before { display: none; }
.tl-body h3 { font-size: 1.02rem; margin-bottom: .4rem; }
.tl-body p { color: var(--ink-mute); font-size: .93rem; max-width: 50ch; }

/* Razones (resumen ejecutivo) */
.razon-row { display: flex; gap: 1.1rem; align-items: baseline; padding-block: 1rem; border-bottom: 1px solid var(--line-navy); }
.razon-row:last-child { border-bottom: 0; }
.razon-num { font-family: var(--serif); font-style: italic; color: var(--terracota); font-size: 1.1rem; min-width: 2.2ch; }
.razon-row h3 { color: var(--cream-on-navy); font-size: 1.05rem; min-width: 11ch; }
.razon-row p { color: #C9BFA0; font-size: .92rem; }

/* Photo placeholder */
.ph {
  position: relative; aspect-ratio: var(--ph-ratio, 4/3); border-radius: 6px; overflow: hidden;
  background: repeating-linear-gradient(135deg, rgba(168,90,46,0.06) 0 2px, transparent 2px 26px), linear-gradient(160deg, var(--paper-3), var(--paper-2));
  border: 1px solid var(--line); display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; gap: .7rem; padding: 1.3rem;
}
.ph svg { width: 28px; height: 28px; color: var(--terracota); opacity: .85; }
.ph span { font-size: .7rem; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-mute); max-width: 22em; line-height: 1.5; }

/* Numerus clausus stat */
.stat-row { display: flex; flex-wrap: wrap; gap: clamp(1.6rem, 4vw, 3rem); border-top: 1px solid var(--line-navy); padding-top: 1.6rem; margin-top: 1.6rem; }
.stat { display: flex; flex-direction: column; gap: .3rem; }
.stat .num { font-family: var(--serif); font-size: clamp(2rem, 3.4vw, 2.8rem); color: var(--terracota); font-style: italic; }
.stat .lbl { font-size: .82rem; color: #C9BFA0; }

/* Form */
.form-field { position: relative; margin-bottom: 1.2rem; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; background: var(--card); border: 1px solid var(--line); border-radius: 4px;
  padding: 1.05rem 1rem .5rem; font: inherit; color: var(--ink); font-size: .95rem;
  transition: border-color .3s var(--ease-out);
}
.form-field textarea { min-height: 100px; resize: vertical; }
.form-field label {
  position: absolute; left: 1rem; top: 1rem; color: var(--ink-mute); font-size: .95rem; pointer-events: none;
  transition: top .2s var(--ease-out), font-size .2s var(--ease-out), color .2s var(--ease-out);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--terracota); outline: none; }
.form-field input:focus + label, .form-field input:not(:placeholder-shown) + label,
.form-field textarea:focus + label, .form-field textarea:not(:placeholder-shown) + label {
  top: .4rem; font-size: .7rem; letter-spacing: .04em; text-transform: uppercase; color: var(--terracota);
}
.form-field select + label { top: .4rem; font-size: .7rem; letter-spacing: .04em; text-transform: uppercase; color: var(--terracota); }
.form-msg { display: none; padding: .9rem 1rem; border-radius: 4px; font-size: .88rem; margin-top: 1rem; }
.form-msg.ok { display: block; background: rgba(92,138,90,0.12); border: 1px solid rgba(92,138,90,0.35); color: var(--ok); }
.cta-form.is-sending .btn-primary { opacity: .7; pointer-events: none; }

/* WhatsApp float */
.wa-float {
  position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 250; width: 58px; height: 58px; border-radius: 50%;
  background: #25D366; display: grid; place-items: center; box-shadow: 0 16px 34px -10px rgba(0,0,0,0.35);
  transition: transform .35s var(--ease-bounce);
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; color: #fff; }

/* Cursor elegante (desktop) */
.cursor { position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9999; display: none; opacity: 0; transition: opacity .3s var(--ease-out); }
.cursor.is-ready { opacity: 1; }
@media (hover: hover) and (pointer: fine) { .cursor { display: block; } }
.cursor-dot, .cursor-ring { position: fixed; top: 0; left: 0; pointer-events: none; will-change: transform; }
.cursor-dot { width: 6px; height: 6px; margin: -3px; background: var(--terracota); border-radius: 50%; }
.cursor-ring {
  width: 32px; height: 32px; margin: -16px; border: 1px solid var(--navy); border-radius: 50%;
  transition: width .4s var(--ease-out), height .4s var(--ease-out), margin .4s var(--ease-out), border-color .4s var(--ease-out), background-color .4s var(--ease-out);
}
.cursor.is-interactive .cursor-ring { width: 54px; height: 54px; margin: -27px; border-color: var(--terracota); background: var(--terracota-soft); }
.cursor.is-interactive .cursor-dot { transform: scale(0); }
.has-cursor, .has-cursor a, .has-cursor button, .has-cursor summary { cursor: none; }

/* Footer */
.footer { background: var(--navy); color: var(--cream-on-navy); padding-block: 3.2rem 2rem; }
.footer-grid { display: grid; gap: 2.2rem; grid-template-columns: 1fr; }
.footer h4 { font-family: var(--sans); font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; color: #C9BFA0; margin-bottom: .9rem; font-weight: 700; }
.footer ul li { margin-bottom: .5rem; }
.footer a, .footer p { color: #DCD4BC; font-size: .9rem; }
.footer a:hover { color: var(--terracota); }
.footer-bottom {
  margin-top: 2.4rem; padding-top: 1.5rem; border-top: 1px solid var(--line-navy);
  display: flex; flex-direction: column; gap: 1rem; align-items: flex-start; font-size: .78rem; color: #9C93A0;
}

/* Reveal on scroll */
[data-reveal] { opacity: 0; transform: translateY(32px); transition: opacity .8s var(--ease-soft), transform .8s var(--ease-soft); }
[data-reveal].is-revealed { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: .08s; }
[data-reveal-delay="2"] { transition-delay: .16s; }
[data-reveal-delay="3"] { transition-delay: .24s; }

.section-verify {
  display: flex; align-items: center; gap: .6em; font-size: .82rem; color: var(--ink-mute);
  border-top: 1px solid var(--line); padding-top: 1.4rem; margin-top: 1.4rem;
}
.section-verify svg { width: 16px; height: 16px; color: var(--terracota); }

/* Responsive */
@media (min-width: 560px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 760px) {
  .footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); }
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
  .anclaje { grid-template-columns: 1fr 1.3fr; }
  .razon-row { align-items: center; }
}
@media (min-width: 960px) {
  .nav-links { display: flex; } .nav-cta { display: inline-flex; } .nav-toggle { display: none; }
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 1280px) { .container { padding-inline: 2rem; } }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }