/* ═══════════════════════════════════════════════════════
   NORTE CORTINAS — styles.css
   Paleta: hogar luminoso, textura de tela, calma de tarde
   ═══════════════════════════════════════════════════════ */

:root {
  /* Colores */
  --marfil: #F7F3EE;
  --arena: #E8DFD2;
  --terracota: #C45C26;
  --terracota-dark: #A84B1D;
  --salvia: #6B7F6A;
  --tinta: #2A2420;
  --oscuro: #1A1614;
  --blanco-calido: #FDFBF8;

  /* Tipografía */
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "DM Sans", system-ui, sans-serif;

  /* Ritmo */
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1160px;
  --shadow-soft: 0 10px 40px -12px rgba(42, 36, 32, 0.14);
  --shadow-lift: 0 22px 55px -18px rgba(42, 36, 32, 0.22);
}

/* ── Reset básico ── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 92px; }
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--tinta);
  background: var(--marfil);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.12; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.6rem, 7vw, 4.6rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.9rem, 4.4vw, 3rem); letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; font-weight: 600; }
p { margin: 0 0 1em; }
a { color: var(--terracota); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--terracota-dark); }

/* Accesibilidad: foco visible consistente */
:focus-visible {
  outline: 3px solid var(--terracota);
  outline-offset: 3px;
  border-radius: 4px;
}
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--tinta); color: var(--marfil);
  padding: 0.7rem 1.2rem; z-index: 200; border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

/* ── Utilidades ── */
.container { max-width: var(--container); margin-inline: auto; padding-inline: clamp(1.25rem, 4vw, 2.5rem); }
.container-narrow { max-width: 800px; }
.section { padding-block: clamp(4.5rem, 9vw, 7.5rem); }
.section-sand {
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.25) 0 1px, transparent 1px 90px),
    var(--arena);
}
.section-sub { max-width: 560px; color: rgba(42, 36, 32, 0.72); margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.section-note { font-size: 0.9rem; font-style: italic; }
.eyebrow {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--terracota); margin-bottom: 0.9rem;
}
.eyebrow-light { color: var(--arena); }

/* ── Botones ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-body); font-weight: 700; font-size: 1rem;
  padding: 0.85rem 1.6rem; border-radius: 999px;
  text-decoration: none; cursor: pointer; border: 2px solid transparent;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease, color 0.25s ease;
}
.btn svg { width: 1.25em; height: 1.25em; flex: none; }
.btn-lg { padding: 1.05rem 2rem; font-size: 1.05rem; }
.btn-primary {
  background: var(--terracota); color: var(--blanco-calido);
  box-shadow: 0 8px 24px -8px rgba(196, 92, 38, 0.55);
}
.btn-primary:hover {
  background: var(--terracota-dark); color: var(--blanco-calido);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -10px rgba(196, 92, 38, 0.6);
}
.btn-ghost {
  background: rgba(253, 251, 248, 0.14); color: var(--blanco-calido);
  border-color: rgba(253, 251, 248, 0.55);
  backdrop-filter: blur(2px);
}
.btn-ghost:hover { background: rgba(253, 251, 248, 0.26); color: #fff; transform: translateY(-2px); }
.btn-outline {
  background: transparent; color: var(--tinta); border-color: var(--tinta);
}
.btn-outline:hover { background: var(--tinta); color: var(--marfil); transform: translateY(-2px); }

/* ═══════════════ 1. NAV ═══════════════ */
.nav {
  position: fixed; inset-inline: 0; top: 0; z-index: 100;
  background: rgba(247, 243, 238, 0.92);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}
.nav.scrolled { box-shadow: 0 6px 24px -12px rgba(42, 36, 32, 0.25); background: rgba(247, 243, 238, 0.97); }
.nav-inner {
  max-width: var(--container); margin-inline: auto;
  padding: 0.9rem clamp(1.25rem, 4vw, 2.5rem);
  display: flex; align-items: center; gap: 2rem;
}
.nav-logo {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-display); font-size: 1.35rem; font-weight: 600;
  color: var(--tinta); text-decoration: none; letter-spacing: -0.01em;
}
.nav-logo em { font-style: normal; color: var(--terracota); }
.nav-logo-icon { width: 27px; height: 26px; color: var(--terracota); flex: none; }
.nav-links { display: flex; align-items: center; gap: 1.8rem; margin-left: auto; }
.nav-links > a:not(.btn) {
  font-weight: 500; font-size: 0.97rem; color: var(--tinta);
  text-decoration: none; position: relative;
}
.nav-links > a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -5px;
  width: 100%; height: 2px; background: var(--terracota);
  transform: scaleX(0); transform-origin: left; transition: transform 0.25s ease;
}
.nav-links > a:not(.btn):hover::after { transform: scaleX(1); }
.btn-nav { margin-left: 0.4rem; padding: 0.65rem 1.3rem; font-size: 0.95rem; }
.btn-nav-mobile { display: none; }

.nav-burger {
  display: none; margin-left: auto;
  width: 46px; height: 46px; border: none; background: none; cursor: pointer;
  flex-direction: column; justify-content: center; align-items: center; gap: 6px;
  border-radius: 10px;
}
.nav-burger span {
  display: block; width: 24px; height: 2.5px; border-radius: 2px;
  background: var(--tinta); transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8.5px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8.5px) rotate(-45deg); }

@media (max-width: 860px) {
  .btn-nav { display: none; }
  .nav-burger { display: flex; }
  .nav-links {
    position: fixed; top: 66px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--marfil);
    padding: 0.5rem 1.5rem 1.5rem;
    box-shadow: 0 24px 40px -18px rgba(42, 36, 32, 0.3);
    transform: translateY(-8px); opacity: 0; visibility: hidden; pointer-events: none;
    transition: transform 0.28s ease, opacity 0.28s ease, visibility 0.28s;
  }
  .nav.open .nav-links { transform: translateY(0); opacity: 1; visibility: visible; pointer-events: auto; }
  .nav-links > a:not(.btn) {
    padding: 0.95rem 0.2rem; font-size: 1.1rem;
    border-bottom: 1px solid rgba(42, 36, 32, 0.08);
  }
  .nav-links > a:not(.btn)::after { display: none; }
  .btn-nav-mobile { display: inline-flex; justify-content: center; margin-top: 1.1rem; }
}

/* ═══════════════ 2. HERO ═══════════════ */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center;
  color: var(--blanco-calido);
  overflow: hidden;
  padding: 7rem 0 4rem;
}
.hero-bg { position: absolute; inset: -8% 0; z-index: -3; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
  position: absolute; inset: 0; z-index: -2;
  background:
    linear-gradient(115deg, rgba(26, 22, 20, 0.78) 0%, rgba(26, 22, 20, 0.45) 45%, rgba(26, 22, 20, 0.18) 75%),
    linear-gradient(to top, rgba(26, 22, 20, 0.55) 0%, transparent 35%);
}

/* Paneles de cortina (reveal de entrada — los mueve GSAP) */
.curtain {
  position: absolute; top: 0; bottom: 0; width: 51%;
  z-index: 50; display: none;
  background:
    repeating-linear-gradient(90deg,
      rgba(26, 22, 20, 0.06) 0 14px,
      rgba(255, 255, 255, 0.05) 14px 30px,
      transparent 30px 64px),
    linear-gradient(180deg, #EFE8DE, var(--arena));
}
.curtain-left { left: 0; box-shadow: 10px 0 30px rgba(26, 22, 20, 0.18); }
.curtain-right { right: 0; box-shadow: -10px 0 30px rgba(26, 22, 20, 0.18); }
.curtains-on .curtain { display: block; }

.hero-content {
  max-width: var(--container); width: 100%;
  margin-inline: auto; padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}
.hero-content h1 { max-width: 13ch; text-wrap: balance; }
.hero .eyebrow { color: #EFB08A; }
.hero-sub {
  max-width: 480px; font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: rgba(253, 251, 248, 0.9); margin-bottom: 2rem;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 2.4rem; }
.hero-trust {
  list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem 1.6rem;
  margin: 0; padding: 0;
  font-size: 0.92rem; font-weight: 500; color: rgba(253, 251, 248, 0.85);
}
.hero-trust li { display: flex; align-items: center; gap: 0.5rem; }
.hero-trust li::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--terracota); flex: none;
}

.hero-scroll {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid rgba(253, 251, 248, 0.5);
  border-radius: 999px;
}
.hero-scroll span {
  position: absolute; top: 8px; left: 50%; width: 4px; height: 8px;
  margin-left: -2px; border-radius: 2px; background: rgba(253, 251, 248, 0.8);
}
@media (prefers-reduced-motion: no-preference) {
  .hero-scroll span { animation: scrollHint 1.8s ease-in-out infinite; }
}
@keyframes scrollHint {
  0%, 100% { transform: translateY(0); opacity: 1; }
  60% { transform: translateY(12px); opacity: 0.2; }
}

/* ═══════════════ 3. SERVICIOS ═══════════════ */
.cards-grid {
  display: grid; gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(245px, 1fr));
}
.card {
  background: var(--blanco-calido);
  border: 1px solid rgba(42, 36, 32, 0.07);
  border-radius: var(--radius);
  padding: 1.9rem 1.7rem;
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lift); }
.card-icon {
  width: 58px; height: 58px; border-radius: 16px;
  background: rgba(196, 92, 38, 0.1); color: var(--terracota);
  display: grid; place-items: center; margin-bottom: 1.2rem;
}
.card-icon svg { width: 34px; height: 34px; }
.card h3 { margin-bottom: 0.5rem; }
.card p { font-size: 0.97rem; color: rgba(42, 36, 32, 0.75); }
.card-benefit {
  margin: 0.9rem 0 0; padding-top: 0.9rem;
  border-top: 1px dashed rgba(42, 36, 32, 0.15);
  font-size: 0.88rem !important; font-weight: 600;
  color: var(--salvia) !important;
}

/* ═══════════════ 4. POR QUÉ NORTE ═══════════════ */
.split {
  display: grid; gap: clamp(2.5rem, 6vw, 5rem);
  grid-template-columns: 1.1fr 0.9fr; align-items: center;
}
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.split-text p { max-width: 52ch; color: rgba(42, 36, 32, 0.78); }
.check-list { list-style: none; margin: 1.8rem 0 0; padding: 0; display: grid; gap: 0.9rem; }
.check-list li {
  display: flex; align-items: flex-start; gap: 0.8rem;
  font-weight: 500; font-size: 1.02rem;
}
.check-list svg {
  width: 24px; height: 24px; flex: none; margin-top: 1px;
  color: var(--blanco-calido); background: var(--salvia);
  border-radius: 50%; padding: 4px;
}
.split-media { position: relative; margin: 0; }
.split-media img {
  width: 100%; aspect-ratio: 4 / 5; object-fit: cover;
  border-radius: var(--radius); box-shadow: var(--shadow-lift);
}
.split-badge {
  position: absolute; left: -1rem; bottom: 2rem;
  background: var(--blanco-calido); border-radius: var(--radius-sm);
  padding: 1rem 1.4rem; box-shadow: var(--shadow-lift);
  display: grid; line-height: 1.25;
}
.split-badge strong {
  font-family: var(--font-display); font-size: 1.9rem;
  font-weight: 600; color: var(--terracota);
}
.split-badge span { font-size: 0.85rem; color: rgba(42, 36, 32, 0.7); }

/* ═══════════════ 5. TRABAJOS / GALERÍA ═══════════════ */
.gallery {
  display: grid; gap: 1.1rem;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 230px;
}
@media (max-width: 860px) { .gallery { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 200px; } }
@media (max-width: 520px) { .gallery { grid-template-columns: 1fr; grid-auto-rows: 240px; } }
.gallery-item {
  position: relative; margin: 0; overflow: hidden;
  border-radius: var(--radius-sm);
}
.gallery-item.tall { grid-row: span 2; }
@media (max-width: 520px) { .gallery-item.tall { grid-row: span 1; } }
.gallery-item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item figcaption {
  position: absolute; inset-inline: 0; bottom: 0;
  padding: 2.2rem 1.1rem 0.9rem;
  background: linear-gradient(to top, rgba(26, 22, 20, 0.72), transparent);
  color: var(--blanco-calido); font-size: 0.9rem; font-weight: 600;
  letter-spacing: 0.02em;
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.gallery-item:hover figcaption,
.gallery-item:focus-within figcaption { opacity: 1; transform: translateY(0); }
@media (hover: none) {
  .gallery-item figcaption { opacity: 1; transform: none; }
}
.gallery-cta { margin-top: 2.2rem; text-align: center; }

/* ═══════════════ 6. PROCESO ═══════════════ */
.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 1.4rem;
  grid-template-columns: repeat(4, 1fr);
  counter-reset: paso;
}
@media (max-width: 980px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }
.step {
  position: relative;
  background: var(--blanco-calido);
  border-radius: var(--radius);
  padding: 1.8rem 1.5rem 1.5rem;
  box-shadow: var(--shadow-soft);
}
.step-num {
  display: grid; place-items: center;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--terracota); color: var(--blanco-calido);
  font-family: var(--font-display); font-size: 1.25rem; font-weight: 600;
  margin-bottom: 1.1rem;
}
.step h3 { font-size: 1.12rem; margin-bottom: 0.4rem; }
.step p { font-size: 0.94rem; color: rgba(42, 36, 32, 0.72); margin: 0; }

/* ═══════════════ 7. TESTIMONIOS ═══════════════ */
.testimonials {
  display: grid; gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.testimonial {
  margin: 0; background: var(--blanco-calido);
  border-radius: var(--radius); padding: 1.9rem 1.7rem;
  border: 1px solid rgba(42, 36, 32, 0.07);
  box-shadow: var(--shadow-soft);
  display: flex; flex-direction: column; gap: 1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.testimonial:hover { transform: translateY(-5px); box-shadow: var(--shadow-lift); }
.testimonial p {
  font-family: var(--font-display); font-size: 1.12rem; line-height: 1.5;
  margin: 0; flex: 1;
}
.testimonial footer { font-size: 0.88rem; color: rgba(42, 36, 32, 0.6); }
.testimonial-tag {
  font-style: italic; color: var(--salvia);
}

/* ═══════════════ 8. FAQ ═══════════════ */
.faq { display: grid; gap: 0.9rem; margin-top: 1rem; }
.faq-item {
  background: var(--blanco-calido);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(42, 36, 32, 0.08);
  overflow: hidden;
}
.faq-item h3 { margin: 0; font-size: 1rem; }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  background: none; border: none; cursor: pointer; text-align: left;
  font-family: var(--font-body); font-size: 1.05rem; font-weight: 600; color: var(--tinta);
  padding: 1.2rem 1.4rem;
}
.faq-icon {
  position: relative; flex: none; width: 22px; height: 22px;
  border-radius: 50%; background: rgba(196, 92, 38, 0.12);
}
.faq-icon::before, .faq-icon::after {
  content: ""; position: absolute; top: 50%; left: 50%;
  width: 10px; height: 2px; background: var(--terracota);
  transform: translate(-50%, -50%);
  transition: transform 0.3s ease;
}
.faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item.open .faq-icon::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-a {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}
.faq-item.open .faq-a { grid-template-rows: 1fr; }
.faq-a-inner { overflow: hidden; }
.faq-a-inner p {
  padding: 0 1.4rem 1.3rem; margin: 0;
  color: rgba(42, 36, 32, 0.75); font-size: 0.98rem;
}

/* ═══════════════ 9. CTA FINAL ═══════════════ */
.cta-final {
  background:
    radial-gradient(90% 120% at 50% 0%, rgba(196, 92, 38, 0.16), transparent 60%),
    var(--oscuro);
  color: var(--marfil);
  text-align: center;
  padding-block: clamp(5rem, 10vw, 8rem);
}
.cta-final h2 { color: var(--blanco-calido); }
.cta-final p { color: rgba(247, 243, 238, 0.8); max-width: 46ch; margin-inline: auto; }
.cta-final-actions {
  margin-top: 2.4rem;
  display: flex; flex-direction: column; align-items: center; gap: 1.2rem;
}
.link-light { color: var(--arena); font-weight: 500; text-decoration: none; }
.link-light:hover { color: var(--blanco-calido); }

/* ═══════════════ 10. FOOTER ═══════════════ */
.footer {
  background: var(--oscuro); color: rgba(247, 243, 238, 0.75);
  padding: 3.5rem 0 2rem;
  border-top: 1px solid rgba(247, 243, 238, 0.08);
  font-size: 0.95rem;
}
.footer-grid {
  display: grid; gap: 2.5rem;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  padding-bottom: 2.5rem;
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 2rem; } }
.footer-logo {
  font-family: var(--font-display); font-size: 1.4rem; font-weight: 600;
  color: var(--marfil); margin-bottom: 0.6rem;
}
.footer-logo em { font-style: normal; color: var(--terracota); }
.footer-zone { font-size: 0.88rem; color: rgba(247, 243, 238, 0.5); }
.footer-links, .footer-contact { display: grid; gap: 0.7rem; align-content: start; }
.footer a { color: rgba(247, 243, 238, 0.85); text-decoration: none; }
.footer a:hover { color: var(--terracota); }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem;
  padding-top: 1.8rem;
  border-top: 1px solid rgba(247, 243, 238, 0.1);
  font-size: 0.85rem; color: rgba(247, 243, 238, 0.45);
}
.footer-bottom p { margin: 0; }

/* ═══════════════ Motion ═══════════════
   .hero-el y .reveal los anima GSAP (main.js).
   Sin JS o con prefers-reduced-motion todo queda visible. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}