/* ============================================================
   Ignacio Escribano Ott — Nutrición Deportiva
   Sistema visual: ficha clínico-deportiva. Cream + ink + granate.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,500;0,600;0,700;1,500;1,600&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --ink: #0D0D0D;
  --cream: #E8E1D9;
  --cream-card: #F7F5F1;
  --maroon: #6B2E2E;
  --maroon-deep: #4A1F1F;
  --stone: #8C8577;

  --border: rgba(13, 13, 13, 0.14);
  --border-soft: rgba(13, 13, 13, 0.08);
  --border-onink: rgba(232, 225, 217, 0.18);

  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max-narrow: 680px;
  --max-text: 960px;
  --max-wide: 1180px;

  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px;
  --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px; --s-10: 128px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 600ms;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--cream);
  text-wrap: pretty;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--ink); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
a:hover { color: var(--maroon); }

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

.skip-link {
  position: absolute;
  left: 8px;
  top: -48px;
  background: var(--ink);
  color: var(--cream);
  padding: 10px 16px;
  font-size: 13px;
  z-index: 200;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus { top: 8px; }

h1, h2, h3, h4 { margin: 0; color: var(--ink); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--maroon);
  margin: 0 0 var(--s-4);
}

.h-serif {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
}
.h-serif em { font-style: italic; color: var(--maroon); font-weight: 500; }

h1.display { font-size: clamp(2.4rem, 3.2vw + 1.4rem, 4.4rem); }
h2.section-title { font-size: clamp(1.9rem, 1.8vw + 1.2rem, 2.7rem); }
h3.card-title { font-family: var(--font-serif); font-weight: 600; font-size: 1.4rem; }

.lede {
  font-size: clamp(1.05rem, 0.4vw + 1rem, 1.2rem);
  line-height: 1.65;
  color: var(--ink);
  max-width: var(--max-narrow);
}

p { margin: 0 0 var(--s-5); max-width: 68ch; color: var(--ink); }
p.muted, .muted { color: var(--stone); }

.container { max-width: var(--max-wide); margin: 0 auto; padding: 0 var(--s-5); }
.container--text { max-width: var(--max-text); }
.container--narrow { max-width: var(--max-narrow); }

.hairline { border: 0; border-top: 1px solid var(--border); margin: 0; }

section.section { padding: var(--s-9) 0; }
@media (max-width: 720px) { section.section { padding: var(--s-7) 0; } }
.section--alt { background: var(--cream-card); }
.section--ink { background: var(--ink); color: var(--cream); }
.section--ink h1, .section--ink h2, .section--ink h3, .section--ink p { color: var(--cream); }
.section--ink .eyebrow { color: var(--cream); opacity: 0.65; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 15px 28px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.btn-primary { background: var(--maroon); color: var(--cream-card); }
.btn-primary:hover { background: var(--maroon-deep); color: var(--cream-card); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { color: var(--maroon); border-color: var(--maroon); }
.btn-ghost-onink { background: transparent; color: var(--cream); border-color: var(--border-onink); }
.btn-ghost-onink:hover { color: var(--cream); border-color: var(--cream); }

.text-link {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--maroon);
  border-bottom: 1px solid var(--border);
  padding-bottom: 3px;
}
.text-link:hover { border-color: var(--maroon); }

/* ── Header / Nav ────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--cream);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.wordmark {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--ink);
  white-space: nowrap;
}
.wordmark span { color: var(--maroon); }
.wordmark img { display: block; height: 34px; width: auto; }

.nav-desktop { display: none; align-items: center; gap: var(--s-7); }
.nav-links { display: flex; gap: var(--s-6); list-style: none; margin: 0; padding: 0; }
.nav-links a {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.nav-links a:hover, .nav-links a[aria-current="page"] {
  color: var(--maroon);
  border-color: var(--maroon);
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border);
  cursor: pointer;
}
.nav-toggle span { display: block; height: 1px; background: var(--ink); width: 20px; margin: 0 auto; }

.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--cream);
  border-bottom: 1px solid var(--border);
}
.mobile-nav.is-open { display: flex; }
.mobile-nav a {
  padding: var(--s-4) var(--s-5);
  border-top: 1px solid var(--border-soft);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.mobile-nav .btn { margin: var(--s-4) var(--s-5) var(--s-5); justify-content: center; }

@media (min-width: 900px) {
  .nav-desktop { display: flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none !important; }
}

/* ── Hero ────────────────────────────────────────────────── */
.hero { padding: var(--s-9) 0 var(--s-8); }
.hero .container {
  display: grid;
  gap: var(--s-8);
  align-items: end;
}
@media (min-width: 960px) {
  .hero .container { grid-template-columns: 1.3fr 0.7fr; }
}
.hero-copy p.lede { margin-bottom: var(--s-6); }
.hero-actions { display: flex; align-items: center; gap: var(--s-5); flex-wrap: wrap; }

.hero-file {
  border: 1px solid var(--border);
  background: var(--cream-card);
  padding: var(--s-3);
}
.hero-file .frame { aspect-ratio: 4 / 5; width: 100%; border: 1px solid var(--border); }
.hero-file .caption {
  margin-top: var(--s-3);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
  display: flex;
  justify-content: space-between;
}

.fade-up {
  opacity: 0;
  transform: translateY(20px);
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; }
}

/* ── Stat strip (ficha) ──────────────────────────────────── */
.stat-strip {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}
@media (min-width: 720px) { .stat-strip { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 719px) { .stat-strip { grid-template-columns: repeat(2, 1fr); } }
.stat-cell {
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--s-6) var(--s-5);
}
.stat-number {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.1rem, 2.4vw + 1.2rem, 3.2rem);
  line-height: 1;
  color: var(--ink);
  margin-bottom: var(--s-3);
}
.stat-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
}

/* ── About block ─────────────────────────────────────────── */
.about-block .container {
  display: grid;
  gap: var(--s-8);
}
@media (min-width: 900px) { .about-block .container { grid-template-columns: 320px 1fr; align-items: start; } }
.about-photo { aspect-ratio: 4/5; }
@media (min-width: 900px) {
  .about-with-photo { grid-template-columns: 1fr 340px !important; align-items: start; }
  .about-with-photo--left { grid-template-columns: 340px 1fr !important; }
}
.tag-row { display: flex; flex-wrap: wrap; gap: var(--s-3); margin: var(--s-5) 0 var(--s-6); }
.tag {
  border: 1px solid var(--border);
  padding: 8px 14px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
}

/* ── Cards / services ────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
@media (min-width: 800px) { .card-grid { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--cream-card);
  padding: var(--s-7) var(--s-6);
  position: relative;
  transition: background var(--dur-base) var(--ease-out);
}
.card:hover { background: #fdfcfa; }
.card .card-index {
  position: absolute;
  top: var(--s-5);
  right: var(--s-6);
  font-family: var(--font-serif);
  font-size: 3.2rem;
  color: rgba(13,13,13,0.06);
  line-height: 1;
}
.card h3.card-title { margin: var(--s-2) 0 var(--s-4); }
.card p { color: var(--stone); font-size: 0.95rem; }

/* ── Video ───────────────────────────────────────────────── */
.video-frame {
  border: 1px solid var(--border);
  aspect-ratio: 16/9;
  width: 100%;
  background: var(--cream-card);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--s-5);
}
.video-frame .ph-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
}
.play-ring {
  width: 56px; height: 56px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--s-4);
}

/* ── Testimonials ────────────────────────────────────────── */
.testi-grid { display: grid; grid-template-columns: 1fr; gap: var(--s-5); }
@media (min-width: 800px) { .testi-grid { grid-template-columns: repeat(3, 1fr); } }
.testi-card {
  border: 1px solid var(--border);
  padding: var(--s-6) var(--s-5);
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.testi-card .quote-mark { font-family: var(--font-serif); font-size: 2.2rem; color: var(--stone); line-height: 1; opacity: 0.5; }
.testi-card p.placeholder-copy {
  font-style: italic;
  color: var(--stone);
  font-size: 0.9rem;
  margin: var(--s-4) 0 0;
}

/* ── Newsletter ──────────────────────────────────────────── */
.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  max-width: 480px;
}
@media (min-width: 560px) { .newsletter-form { flex-direction: row; } }
.field-input, .field-select, .field-textarea {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--cream-card);
  border: 1px solid var(--border);
  padding: 14px 16px;
  width: 100%;
}
.field-input:focus, .field-select:focus, .field-textarea:focus { border-color: var(--maroon); }
.form-note { font-size: 0.78rem; color: var(--stone); margin-top: var(--s-3); }

/* ── Contact form ────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: var(--s-8); }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1.2fr 0.8fr; } }
.form-field { margin-bottom: var(--s-5); }
.form-field label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: var(--s-2);
}
.field-textarea { resize: vertical; min-height: 140px; }
.form-status { font-size: 0.85rem; margin-top: var(--s-4); display: none; }
.form-status.is-visible { display: block; }

.contact-info dl { display: flex; flex-direction: column; gap: var(--s-6); margin: 0; }
.contact-info dt { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--stone); margin-bottom: var(--s-2); }
.contact-info dd { margin: 0; font-family: var(--font-serif); font-size: 1.15rem; }
.social-row { display: flex; gap: var(--s-5); margin-top: var(--s-3); }
.social-row a { display: inline-flex; color: var(--ink); }
.social-row a:hover { color: var(--maroon); transform: translateY(-2px); transition: transform var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out); }

/* ── Timeline (sobre-mi) ─────────────────────────────────── */
.timeline { display: flex; flex-direction: column; }
.timeline-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--s-6);
  padding: var(--s-6) 0;
  border-top: 1px solid var(--border);
}
.timeline-item:last-child { border-bottom: 1px solid var(--border); }
.timeline-tag { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--maroon); }
.timeline-item h4 { font-family: var(--font-serif); font-weight: 600; font-size: 1.2rem; margin-bottom: var(--s-2); }
.timeline-item p { color: var(--stone); font-size: 0.95rem; margin: 0; }

.edu-list { list-style: none; margin: 0; padding: 0; }
.edu-list li {
  padding: var(--s-5) 0;
  border-top: 1px solid var(--border);
  display: flex;
  gap: var(--s-4);
  align-items: baseline;
}
.edu-list li:last-child { border-bottom: 1px solid var(--border); }
.edu-list .edu-mark { color: var(--maroon); font-family: var(--font-serif); font-style: italic; }

.pub-list { list-style: none; margin: 0; padding: 0; }
.pub-list li { padding: var(--s-5) 0; border-top: 1px solid var(--border); }
.pub-list li:last-child { border-bottom: 1px solid var(--border); }
.pub-list .pub-title { font-family: var(--font-serif); font-weight: 600; font-size: 1.05rem; margin: 0 0 var(--s-2); }
.pub-list .pub-meta { font-size: 0.85rem; color: var(--stone); margin: 0 0 var(--s-2); }
.pub-award { font-size: 0.9rem; color: var(--maroon); font-weight: 600; margin: var(--s-3) 0 0; }

.pub-list--grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 var(--s-8);
}
@media (min-width: 800px) {
  .pub-list--grid { grid-template-columns: 1fr 1fr; }
  .pub-list--grid li { border-top: 1px solid var(--border); }
  .pub-list--grid li:nth-child(1), .pub-list--grid li:nth-child(2) { border-top: 0; }
  .pub-list--grid li:last-child { border-bottom: 0; }
}

.content-placeholder {
  border: 1px solid var(--border);
  padding: var(--s-9) var(--s-5);
  text-align: center;
}
.content-placeholder p { margin: 0; }

/* ── Mail card grid (contacto.html) ─────────────────────── */
.mail-card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
}
@media (min-width: 720px) { .mail-card-grid { grid-template-columns: repeat(3, 1fr); } }
.mail-card {
  border: 1px solid var(--border);
  padding: var(--s-7) var(--s-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--s-4);
  color: var(--ink);
  transition: background var(--dur-base) var(--ease-out);
}
.mail-card:hover { background: var(--cream-card); color: var(--ink); }
.mail-card svg { color: var(--maroon); }
.mail-card-title { font-family: var(--font-serif); font-weight: 600; font-size: 1.15rem; margin: 0; }
.mail-card-email { font-size: 0.92rem; color: var(--stone); margin: 0; }

/* ── Services page sections ──────────────────────────────── */
.service-block { padding: var(--s-9) 0; }
.service-block .container { display: grid; gap: var(--s-6); }
@media (min-width: 900px) { .service-block .container { grid-template-columns: 90px 1fr; } }
.service-num { font-family: var(--font-serif); font-size: 2.6rem; color: var(--maroon); line-height: 1; }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer { background: var(--ink); color: var(--cream); padding: var(--s-9) 0 var(--s-6); }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-8);
  padding-bottom: var(--s-8);
  border-bottom: 1px solid var(--border-onink);
}
@media (min-width: 800px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.footer-grid .wordmark { color: var(--cream); }
.footer-grid .wordmark img { filter: brightness(0) invert(1) sepia(1) saturate(0) brightness(1.6); }
.footer-tagline { color: rgba(232,225,217,0.65); font-size: 0.9rem; max-width: 32ch; margin-top: var(--s-4); }
.footer-col h4 { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: rgba(232,225,217,0.55); margin-bottom: var(--s-5); }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--s-3); }
.footer-col a { color: var(--cream); font-size: 0.92rem; }
.footer-col a:hover { color: #c98b8b; }
.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  padding-top: var(--s-6);
  font-size: 0.78rem;
  color: rgba(232,225,217,0.5);
}
@media (min-width: 640px) { .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; } }

/* ── Utility ─────────────────────────────────────────────── */
.mt-0 { margin-top: 0; }
.center-copy { max-width: var(--max-narrow); }

/* ── Placeholder markers ─────────────────────────────────── */
.ph {
  border-bottom: 1px dotted var(--stone);
  cursor: help;
}
a.ph:hover { color: var(--maroon); }

/* ── Ink-section overrides for components that can land on a dark bg ── */
.section--ink .tag { border-color: var(--border-onink); color: var(--cream); }
.section--ink .video-frame { background: rgba(255,255,255,0.04); border-color: var(--border-onink); }
.section--ink .video-frame .ph-label { color: rgba(232,225,217,0.6); }
.section--ink .play-ring { border-color: var(--border-onink); color: var(--cream); }
.section--ink .testi-card { border-color: var(--border-onink); }
.section--ink .testi-card .quote-mark { color: rgba(232,225,217,0.5); }
.section--ink .testi-card .placeholder-copy { color: rgba(232,225,217,0.55); }
.section--ink .field-input, .section--ink .field-select { background: rgba(255,255,255,0.06); border-color: var(--border-onink); color: var(--cream); }
.section--ink .field-input::placeholder { color: rgba(232,225,217,0.4); }
.section--ink .muted { color: rgba(232,225,217,0.55); }
.section--ink .text-link { color: var(--cream); border-color: var(--border-onink); }
.section--ink .text-link:hover { color: #c98b8b; }
.section--ink a.ph { border-color: rgba(232,225,217,0.4); }

/* ── Background rhythm tweak panel (index.html only) ─────── */
.bg-tweak-panel {
  position: fixed;
  right: var(--s-5);
  bottom: var(--s-5);
  z-index: 150;
  background: var(--cream-card);
  border: 1px solid var(--border);
  padding: var(--s-4);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.bg-tweak-panel .eyebrow { margin: 0; font-size: 0.62rem; }
.bg-tweak-swatches { display: flex; gap: var(--s-2); }
.bg-tweak-swatch {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  cursor: pointer;
  padding: 0;
}
.bg-tweak-swatch[data-active="true"] { outline: 2px solid var(--maroon); outline-offset: 2px; }