/* =====================================================================
   Lübeck SpA — Hoja de estilos
   Paleta y tipografía inspiradas en el lenguaje visual de Claude
   ===================================================================== */

:root {
  /* --- Paleta Claude --- */
  --cream:        #F5F4EE;   /* fondo principal */
  --cream-deep:   #EFEDE4;   /* secciones alternas */
  --paper:        #FBFAF6;   /* tarjetas */
  --coral:        #D97757;   /* acento principal (Claude) */
  --coral-deep:   #C15F3C;   /* hover / énfasis */
  --coral-soft:   #F0D6CB;   /* fondos suaves */
  --navy:         #003759;   /* color exacto del logo Lübeck */
  --navy-soft:    #0A4F77;
  --ink:          #20201D;   /* texto principal */
  --muted:        #6E6860;   /* texto secundario */
  --line:         #E3DFD4;   /* bordes */
  --white:        #FFFFFF;

  /* --- Tipografía --- */
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  /* --- Medidas --- */
  --maxw: 1140px;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(32,32,29,.04), 0 8px 30px rgba(32,32,29,.06);
  --shadow-lg: 0 20px 60px rgba(30,42,68,.12);
  --transition: .25s cubic-bezier(.4,0,.2,1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  background: var(--cream);
  color: var(--ink);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- Tipografía ---------- */
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; line-height: 1.12; color: var(--ink); letter-spacing: -.01em; }
h1 { font-size: clamp(2.5rem, 6vw, 4.2rem); }
h2 { font-size: clamp(2rem, 4vw, 2.9rem); }
h3 { font-size: 1.3rem; font-weight: 600; }
.eyebrow {
  font-family: var(--sans);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--coral-deep);
  margin-bottom: 1rem;
  display: inline-block;
}
.lead { font-size: clamp(1.1rem, 2vw, 1.32rem); color: var(--muted); line-height: 1.6; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section { padding: clamp(72px, 10vw, 130px) 0; }
.section-alt { background: var(--cream-deep); }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Barra de indicadores (fecha / UF / dólar) ---------- */
.topbar { background: var(--navy); color: rgba(255,255,255,.78); }
.topbar-row {
  display: flex; align-items: center; justify-content: flex-end;
  gap: 10px; flex-wrap: wrap;
  padding: 6px 24px;
  font-size: .76rem; letter-spacing: .01em;
}
.topbar-sep { opacity: .45; }
.topbar-link { color: rgba(255,255,255,.7); text-decoration: underline; text-decoration-color: rgba(255,255,255,.3); transition: color var(--transition); }
.topbar-link:hover { color: var(--white); text-decoration-color: rgba(255,255,255,.7); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245,244,238,.82);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}
.site-header.scrolled { border-bottom-color: var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo img { height: 34px; width: auto; }
.nav-logo .wordmark {
  font-family: var(--serif); font-weight: 600; font-size: 1.5rem;
  color: var(--navy); letter-spacing: .01em;
}
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a { font-size: .95rem; color: var(--muted); font-weight: 500; transition: color var(--transition); }
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  background: var(--coral); color: var(--white) !important;
  padding: 10px 20px; border-radius: 999px; font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}
.nav-cta:hover { background: var(--coral-deep); transform: translateY(-1px); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: var(--transition); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 999px; font-weight: 600; font-size: .98rem;
  cursor: pointer; border: 1px solid transparent; transition: all var(--transition);
}
.btn-primary { background: var(--coral); color: var(--white); }
.btn-primary:hover { background: var(--coral-deep); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(193,95,60,.28); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--navy); color: var(--navy); }
.btn-arrow { transition: transform var(--transition); }
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding-top: clamp(60px, 9vw, 110px); }
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(900px 500px at 78% -8%, rgba(217,119,87,.16), transparent 60%),
    radial-gradient(700px 500px at 8% 110%, rgba(30,42,68,.10), transparent 55%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 60px; align-items: center; }
.hero h1 { margin-bottom: 24px; }
.hero h1 .accent { color: var(--coral-deep); font-style: italic; }
.hero .lead { margin-bottom: 36px; max-width: 540px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta { margin-top: 44px; display: flex; gap: 40px; flex-wrap: wrap; }
.hero-meta .stat .num { font-family: var(--serif); font-size: 2rem; color: var(--navy); font-weight: 600; }
.hero-meta .stat .label { font-size: .85rem; color: var(--muted); }

/* Hero visual card */
.hero-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: 24px;
  padding: 30px; box-shadow: var(--shadow-lg); position: relative;
}
.hero-card .card-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 600; color: var(--coral-deep);
  background: var(--coral-soft); padding: 6px 12px; border-radius: 999px; margin-bottom: 18px;
}
.hero-card h4 { font-family: var(--sans); font-size: .9rem; color: var(--muted); font-weight: 600; margin-bottom: 6px; }
.bar-row { display: flex; align-items: flex-end; gap: 10px; height: 130px; margin: 18px 0 14px; }
.bar-row .bar { flex: 1; background: linear-gradient(180deg, var(--coral), var(--coral-deep)); border-radius: 6px 6px 0 0; opacity: .9; }
.bar-row .bar:nth-child(even) { background: linear-gradient(180deg, var(--navy-soft), var(--navy)); }
.hero-card .card-foot { display: flex; justify-content: space-between; font-size: .82rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 14px; }
.hero-card .trend { color: #2E7D5B; font-weight: 600; }

/* Hero — diagrama iceberg (valor agregado con IA) */
.iceberg-card { padding: 28px; }
.iceberg-wrap { position: relative; width: 100%; aspect-ratio: 420 / 470; margin: 4px 0 2px; }
.iceberg-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.iceberg-tip-label { position: absolute; top: 1%; left: 50%; transform: translateX(-50%); width: 78%; text-align: center; }
.iceberg-tip-label strong { display: block; font-family: var(--serif); font-size: 1.05rem; font-weight: 600; color: var(--coral-deep); }
.iceberg-tip-label span { display: block; font-size: .72rem; color: var(--muted); margin-top: 2px; }
.iceberg-body-list { position: absolute; top: 38%; bottom: 15%; left: 21%; right: 21%; display: flex; flex-direction: column; justify-content: space-between; }
.iceberg-body-list li { display: flex; align-items: flex-start; gap: 9px; font-size: .8rem; font-weight: 500; color: var(--white); line-height: 1.25; }
.iceberg-body-list li svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; color: #F0AE93; }
.iceberg-body-list li em { display: block; font-style: normal; font-weight: 400; font-size: .72rem; color: rgba(255,255,255,.6); }
.iceberg-caption { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); font-size: .86rem; font-style: italic; color: var(--muted); text-align: center; }

/* ---------- Servicios ---------- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--coral-soft); }
.service-card .icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--coral-soft); color: var(--coral-deep); margin-bottom: 20px;
}
.service-card .icon svg { width: 26px; height: 26px; }
.service-card h3 { margin-bottom: 10px; }
.service-card p { color: var(--muted); font-size: .98rem; }
.service-card.featured { grid-column: span 1; background: var(--navy); border-color: var(--navy); }
.service-card.featured h3, .service-card.featured p { color: var(--white); }
.service-card.featured p { color: rgba(255,255,255,.78); }
.service-card.featured .icon { background: rgba(217,119,87,.22); color: #F0AE93; }
.service-card.featured .tag { display:inline-block; font-size:.72rem; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:#F0AE93; margin-bottom:14px; }

/* ---------- Sobre nosotros ---------- */
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: center; }
.about-portrait {
  background: linear-gradient(155deg, var(--navy), var(--navy-soft));
  border-radius: 24px; padding: 44px; color: var(--white); box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.about-portrait::after {
  content: ""; position: absolute; right: -40px; bottom: -40px; width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(217,119,87,.35), transparent 70%);
}
.about-portrait .avatar {
  width: 86px; height: 86px; border-radius: 50%; background: var(--coral);
  display: grid; place-items: center; font-family: var(--serif); font-size: 2rem; font-weight: 600;
  color: var(--white); margin-bottom: 22px;
}
.about-portrait .name { font-family: var(--serif); font-size: 1.7rem; margin-bottom: 4px; }
.about-portrait .role { color: #F0AE93; font-weight: 600; font-size: .95rem; margin-bottom: 22px; }
.about-portrait .creds { position: relative; z-index: 1; }
.about-portrait .creds li { display: flex; gap: 10px; align-items: flex-start; font-size: .95rem; color: rgba(255,255,255,.85); margin-bottom: 12px; }
.about-portrait .creds svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 3px; color: #F0AE93; }
.about-portrait .creds-link {
  position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 9px;
  margin-top: 8px; font-size: .92rem; font-weight: 600; color: var(--white);
  background: rgba(255,255,255,.10); padding: 9px 16px; border-radius: 999px;
  transition: background var(--transition);
}
.about-portrait .creds-link:hover { background: rgba(255,255,255,.2); }
.about-portrait .creds-link svg { width: 16px; height: 16px; }
.about-text h2 { margin-bottom: 22px; }
.about-text p { color: var(--muted); margin-bottom: 18px; }
.about-text p strong { color: var(--ink); }

/* ---------- Proyectos ---------- */
.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.project-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; transition: transform var(--transition), box-shadow var(--transition);
}
.project-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.project-card .ptag {
  font-size: .76rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--coral-deep); background: var(--coral-soft); padding: 5px 12px; border-radius: 999px; display: inline-block; margin-bottom: 16px;
}
.project-card h3 { margin-bottom: 10px; }
.project-card p { color: var(--muted); font-size: .96rem; margin-bottom: 18px; }
.project-card .scope { display: flex; flex-wrap: wrap; gap: 8px; }
.project-card .scope span { font-size: .8rem; color: var(--muted); background: var(--cream-deep); border: 1px solid var(--line); padding: 4px 10px; border-radius: 999px; }

/* ---------- Contacto ---------- */
.contact { background: var(--navy); color: var(--white); }
.contact .section-head h2 { color: var(--white); }
.contact .eyebrow { color: #F0AE93; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-intro p { color: rgba(255,255,255,.78); margin-bottom: 30px; max-width: 440px; }
.contact-list li { display: flex; gap: 16px; align-items: center; margin-bottom: 22px; }
.contact-list .ci-icon {
  width: 48px; height: 48px; border-radius: 12px; background: rgba(255,255,255,.08);
  display: grid; place-items: center; flex-shrink: 0; color: #F0AE93;
}
.contact-list .ci-icon svg { width: 22px; height: 22px; }
.contact-list .ci-label { font-size: .8rem; color: rgba(255,255,255,.55); text-transform: uppercase; letter-spacing: .08em; }
.contact-list .ci-value { font-size: 1.05rem; font-weight: 500; color: var(--white); }
.contact-list a.ci-value:hover { color: #F0AE93; }
.contact-card {
  background: var(--white); border-radius: 24px; padding: 38px; color: var(--ink); box-shadow: var(--shadow-lg);
}
.contact-card h3 { margin-bottom: 8px; }
.contact-card p { color: var(--muted); font-size: .95rem; margin-bottom: 24px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 7px; }
.form-field input, .form-field textarea {
  width: 100%; padding: 13px 15px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: var(--sans); font-size: .98rem; background: var(--cream); color: var(--ink); transition: border-color var(--transition);
}
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--coral); }
.form-field textarea { resize: vertical; min-height: 110px; }
.contact-card .btn-primary { width: 100%; justify-content: center; }

/* ---------- Footer ---------- */
.site-footer { background: #002133; color: rgba(255,255,255,.7); padding: 54px 0 30px; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; flex-wrap: wrap; padding-bottom: 34px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand img { height: 30px; margin-bottom: 14px; }
.footer-brand .wordmark { font-family: var(--serif); font-weight: 600; font-size: 1.4rem; color: var(--white); }
.footer-brand p { font-size: .9rem; max-width: 300px; margin-top: 10px; }
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-cols h4 { font-family: var(--sans); font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: rgba(255,255,255,.5); margin-bottom: 16px; }
.footer-cols a { display: block; font-size: .93rem; margin-bottom: 10px; transition: color var(--transition); }
.footer-cols a:hover { color: var(--white); }
.footer-bottom { padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: .85rem; color: rgba(255,255,255,.45); }

/* ---------- Animaciones ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-card { max-width: 460px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 720px) {
  .nav-links {
    position: fixed; inset: 74px 0 auto 0; flex-direction: column; align-items: stretch;
    background: var(--cream); padding: 20px 24px 28px; gap: 4px; border-bottom: 1px solid var(--line);
    transform: translateY(-130%); transition: transform var(--transition); box-shadow: var(--shadow);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 12px 4px; border-bottom: 1px solid var(--line); }
  .nav-links a:last-child { border-bottom: 0; }
  .nav-cta { text-align: center; margin-top: 8px; }
  .nav-toggle { display: block; }
  .services-grid, .projects-grid { grid-template-columns: 1fr; }
  .hero-meta { gap: 28px; }
  .footer-top { flex-direction: column; }
}