/* Atr3s Constructora — global styles.
   Extracted from index.html unchanged; design tokens live in :root (see CLAUDE.md). */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #0E0E0D;
  --white: #F7F5F0;
  --cream: #EDE9E0;
  --sand: #D6CFBF;
  --concrete: #8C8880;
  --ink: #2A2825;
  --accent: #C8602A;
  --accent-light: #F0E0D6;
  --accent-dark: #8C3E18;
  --gold: #B08A3E;
  --serif: 'DM Serif Display', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--white);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 3rem;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--sand);
}

.logo {
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo img {
  height: 52px;
  width: auto;
  display: block;
}

.logo span {
  color: var(--accent);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2.5rem;
}

nav a {
  text-decoration: none;
  color: var(--concrete);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s;
}

nav a:hover { color: var(--ink); }

.nav-cta {
  background: var(--accent) !important;
  color: var(--white) !important;
  padding: 0.6rem 1.4rem;
  border-radius: 2px;
  font-weight: 500 !important;
  transition: background 0.2s !important;
}

.nav-cta:hover { background: var(--accent-dark) !important; }

/* HERO */
#hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding-top: 80px;
}

.hero-left {
  background: var(--black);
  padding: 6rem 4rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-left::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, var(--accent), transparent);
}

.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hero-eyebrow::before {
  content: '';
  width: 2rem;
  height: 1px;
  background: var(--accent);
}

.hero-h1 {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 4.5vw, 4rem);
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
}

.hero-h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-tagline {
  font-size: 1rem;
  color: rgba(247,245,240,0.55);
  line-height: 1.7;
  max-width: 420px;
  margin-bottom: 3rem;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  padding: 0.875rem 2rem;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  border-radius: 2px;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover { background: var(--accent-dark); transform: translateY(-1px); }

.btn-secondary {
  display: inline-block;
  color: rgba(247,245,240,0.7);
  padding: 0.875rem 2rem;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  border: 1px solid rgba(247,245,240,0.2);
  border-radius: 2px;
  transition: all 0.2s;
}

.btn-secondary:hover { color: var(--white); border-color: rgba(247,245,240,0.5); }

.hero-right {
  background: var(--cream);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 4rem;
  position: relative;
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--sand) 1px, transparent 1px),
    linear-gradient(90deg, var(--sand) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.5;
}

.hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--sand);
  border: 1px solid var(--sand);
}

.stat-box {
  background: var(--cream);
  padding: 2rem 1.75rem;
}

.stat-number {
  font-family: var(--serif);
  font-size: 2.5rem;
  color: var(--black);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--concrete);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-quote {
  position: relative;
  z-index: 1;
  margin-bottom: 2.5rem;
  padding: 1.5rem;
  background: var(--white);
  border-left: 3px solid var(--accent);
}

.hero-quote p {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--ink);
  line-height: 1.4;
}

/* SECTION BASE */
section {
  padding: 6rem 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 3rem;
}

.section-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-label::before {
  content: '';
  width: 1.5rem;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--black);
  margin-bottom: 1.5rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--concrete);
  max-width: 560px;
  line-height: 1.7;
  font-weight: 300;
}

/* PROPUESTA */
#propuesta {
  background: var(--white);
}

.tres-pilares {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--sand);
  margin-top: 4rem;
  border: 1px solid var(--sand);
}

.pilar {
  background: var(--white);
  padding: 3rem 2.5rem;
  position: relative;
  transition: background 0.2s;
}

.pilar:hover { background: var(--cream); }

.pilar-number {
  font-family: var(--serif);
  font-size: 4rem;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 1rem;
  font-weight: 400;
}

.pilar-title {
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--black);
  margin-bottom: 1rem;
}

.pilar-text {
  font-size: 0.9rem;
  color: var(--concrete);
  line-height: 1.7;
}

/* VALORES */
#valores {
  background: var(--black);
}

#valores .section-title { color: var(--white); }
#valores .section-subtitle { color: rgba(247,245,240,0.5); }

.valores-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.08);
  margin-top: 4rem;
  border: 1px solid rgba(255,255,255,0.08);
}

.valor-item {
  background: var(--black);
  padding: 2.5rem 1.5rem;
  text-align: center;
  transition: background 0.2s;
}

.valor-item:hover { background: #1A1A18; }

.valor-icon {
  width: 48px;
  height: 48px;
  background: var(--accent);
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.valor-icon svg { width: 22px; height: 22px; stroke: var(--white); fill: none; stroke-width: 1.5; }

.valor-name {
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.valor-desc {
  font-size: 0.8rem;
  color: rgba(247,245,240,0.4);
  line-height: 1.6;
}

/* MODELO */
#modelo {
  background: var(--cream);
}

.fases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 4rem;
}

.fase {
  position: relative;
  padding: 2.5rem;
  background: var(--white);
  border: 1px solid var(--sand);
  border-top: 3px solid var(--accent);
}

.fase-badge {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1.25rem;
}

.fase-title {
  font-family: var(--serif);
  font-size: 1.3rem;
  color: var(--black);
  margin-bottom: 1rem;
}

.fase-desc {
  font-size: 0.875rem;
  color: var(--concrete);
  line-height: 1.7;
}

/* FINANCIERO */
#financiero {
  background: var(--white);
}

.financiero-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  margin-top: 4rem;
  align-items: start;
}

.numeros-clave {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--sand);
  border: 1px solid var(--sand);
  margin-bottom: 2rem;
}

.numero-box {
  background: var(--white);
  padding: 1.75rem 1.5rem;
}

.numero-value {
  font-family: var(--serif);
  font-size: 1.75rem;
  color: var(--black);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.numero-value span {
  color: var(--accent);
}

.numero-label {
  font-size: 0.75rem;
  color: var(--concrete);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.flujo-title {
  font-family: var(--serif);
  font-size: 1.2rem;
  color: var(--black);
  margin-bottom: 1.5rem;
}

.flujo-bar-container {
  margin-bottom: 2rem;
}

.flujo-row {
  display: grid;
  grid-template-columns: 50px 1fr 70px;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}

.flujo-mes {
  font-size: 0.75rem;
  color: var(--concrete);
  font-weight: 500;
}

.flujo-bar-wrap {
  background: var(--cream);
  height: 24px;
  position: relative;
  border-radius: 1px;
  overflow: hidden;
}

.flujo-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 1px;
  transition: width 0.6s ease;
  display: flex;
  align-items: center;
}

.flujo-bar.negative {
  background: var(--sand);
}

.flujo-saldo {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink);
  text-align: right;
}

.disclaimer {
  font-size: 0.8rem;
  color: var(--concrete);
  font-style: italic;
  margin-top: 1rem;
}

/* MERCADO */
#mercado {
  background: var(--cream);
}

.zonas-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--sand);
  border: 1px solid var(--sand);
  margin-top: 4rem;
}

.zona-card {
  background: var(--cream);
  padding: 2.5rem;
  position: relative;
  transition: background 0.2s;
}

.zona-card:hover { background: var(--white); }

.zona-card.featured {
  background: var(--black);
}

.zona-card.featured:hover { background: #1A1A18; }

.zona-badge {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: 1px;
  margin-bottom: 1.25rem;
}

.zona-badge.recomendada {
  background: var(--accent);
  color: var(--white);
}

.zona-badge.expansion {
  background: var(--gold);
  color: var(--white);
}

.zona-badge.estrategia {
  background: var(--sand);
  color: var(--concrete);
}

.zona-name {
  font-family: var(--serif);
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.zona-card.featured .zona-name { color: var(--white); }
.zona-card:not(.featured) .zona-name { color: var(--black); }

.zona-margen {
  font-size: 2.5rem;
  font-family: var(--serif);
  margin-bottom: 0.5rem;
}

.zona-card.featured .zona-margen { color: var(--accent); }
.zona-card:not(.featured) .zona-margen { color: var(--black); }

.zona-desc {
  font-size: 0.85rem;
  line-height: 1.6;
}

.zona-card.featured .zona-desc { color: rgba(247,245,240,0.5); }
.zona-card:not(.featured) .zona-desc { color: var(--concrete); }

.zona-stats {
  margin-top: 1.5rem;
  display: flex;
  gap: 1.5rem;
}

.zona-stat-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.zona-card.featured .zona-stat-label { color: rgba(247,245,240,0.35); }
.zona-card:not(.featured) .zona-stat-label { color: var(--concrete); }

.zona-stat-value {
  font-size: 1rem;
  font-weight: 500;
}

.zona-card.featured .zona-stat-value { color: var(--white); }
.zona-card:not(.featured) .zona-stat-value { color: var(--black); }

/* CONTACTO */
#contacto {
  background: var(--black);
}

#contacto .section-title { color: var(--white); }
#contacto .section-subtitle { color: rgba(247,245,240,0.5); }

.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  margin-top: 4rem;
}

.contacto-info p {
  font-size: 0.9rem;
  color: rgba(247,245,240,0.5);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.contacto-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contacto-item-icon {
  width: 36px;
  height: 36px;
  background: rgba(200,96,42,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.contacto-item-icon svg { width: 16px; height: 16px; stroke: var(--accent); fill: none; stroke-width: 1.5; }

.contacto-item-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.contacto-item-value {
  font-size: 0.9rem;
  color: var(--white);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(247,245,240,0.4);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--white);
  padding: 0.75rem 1rem;
  font-family: var(--sans);
  font-size: 0.9rem;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(247,245,240,0.25); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group select option { background: #1A1A18; color: var(--white); }

.form-group textarea { resize: vertical; min-height: 120px; }

.btn-submit {
  width: 100%;
  background: var(--accent);
  color: var(--white);
  border: none;
  padding: 1rem;
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.2s;
  text-transform: uppercase;
}

.btn-submit:hover { background: var(--accent-dark); }
.btn-submit:disabled { opacity: 0.6; cursor: default; }

/* Honeypot: kept in the DOM for bots, positioned off-screen for humans */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin-top: 1rem;
  font-size: 0.9rem;
  line-height: 1.5;
}
.form-status--success { color: #8FD08F; }
.form-status--error   { color: #E8887F; }

/* FOOTER */
footer {
  background: #080807;
  padding: 2rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255,255,255,0.06);
}

footer .logo { color: var(--white); font-size: 1.1rem; }

.footer-legal {
  font-size: 0.75rem;
  color: rgba(247,245,240,0.25);
}

/* DIVIDER */
.divider {
  width: 100%;
  height: 1px;
  background: var(--sand);
  margin: 3rem 0;
}

/* ANIMATIONS */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-up {
  opacity: 0;
  animation: fadeUp 0.7s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.35s; }
.delay-4 { animation-delay: 0.5s; }

/* RESPONSIVE */
@media (max-width: 900px) {
  nav { padding: 1rem 1.5rem; }
  nav ul { display: none; }
  #hero { grid-template-columns: 1fr; }
  .hero-left { padding: 5rem 2rem 3rem; min-height: 60vh; }
  .hero-right { display: none; }
  .tres-pilares, .valores-grid { grid-template-columns: 1fr; }
  .fases { grid-template-columns: 1fr; }
  .financiero-grid { grid-template-columns: 1fr; gap: 3rem; }
  .zonas-grid { grid-template-columns: 1fr; }
  .contacto-grid { grid-template-columns: 1fr; gap: 3rem; }
  .container { padding: 0 1.5rem; }
  section { padding: 4rem 0; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
}