/* ==========================================================================
   COVENDE - Sistema de Diseño
   Red Colaborativa Inmobiliaria
   ========================================================================== */

:root {
  /* Colores principales */
  --color-primary: #F97316;
  --color-primary-dark: #EA580C;
  --color-primary-light: #FED7AA;
  --color-primary-soft: #FFF7ED;

  /* Neutros */
  --color-dark: #0F172A;
  --color-dark-soft: #1E293B;
  --color-text: #0F172A;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;
  --color-bg: #F8FAFC;
  --color-bg-alt: #F1F5F9;
  --color-white: #FFFFFF;

  /* Estados */
  --color-success: #10B981;
  --color-error: #EF4444;

  /* Tipografía */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Espaciado */
  --container: 1200px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.08);
}

/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Container */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* Background grid pattern */
.bg-grid {
  background-image:
    linear-gradient(to right, rgba(15, 23, 42, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* ==========================================================================
   HEADER
   ========================================================================== */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 250, 252, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-text strong {
  font-size: 18px;
  letter-spacing: 0.02em;
}

.logo-text span {
  font-size: 8px;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 2px;
  font-weight: 500;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
  justify-content: center;
}

.nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-muted);
}

.nav a:hover,
.nav a.active {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-actions .lang {
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  font-size: 14px;
}

.header-actions .access {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s ease;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(249, 115, 22, 0.25);
}

.btn-secondary {
  background: white;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
}

/* ==========================================================================
   PAGE HEADER (Hero secundario)
   ========================================================================== */

.page-hero {
  padding: 80px 0 64px;
  position: relative;
}

.page-hero .eyebrow {
  display: inline-block;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.page-hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-dark);
  margin-bottom: 24px;
  max-width: 720px;
}

.page-hero .lead {
  font-size: 18px;
  color: var(--color-text-muted);
  max-width: 580px;
  line-height: 1.6;
}

/* ==========================================================================
   SECTIONS
   ========================================================================== */

.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-divider {
  border-top: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

.section-header .eyebrow {
  display: inline-block;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.section-header p {
  font-size: 17px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  background: var(--color-dark);
  color: #CBD5E1;
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  color: white;
  margin-bottom: 24px;
}

.footer-brand .logo-text span {
  color: #94A3B8;
}

.footer-brand p {
  font-size: 14px;
  color: #94A3B8;
  line-height: 1.6;
  margin-bottom: 24px;
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: 8px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94A3B8;
  transition: all 0.2s;
}

.footer-social a:hover {
  background: var(--color-primary);
  color: white;
}

.footer-col h4 {
  color: white;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  color: #94A3B8;
  font-size: 14px;
}

.footer-col ul a:hover {
  color: white;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: #94A3B8;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-bottom-links a {
  color: #94A3B8;
}

.footer-bottom-links a:hover {
  color: white;
}

.footer-bottom a.email {
  color: var(--color-primary);
}

/* ==========================================================================
   PÁGINAS LEGALES
   ========================================================================== */

.legal-hero {
  padding: 64px 0 56px;
  text-align: center;
  position: relative;
}

.legal-hero .eyebrow {
  display: inline-block;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.legal-hero h1 {
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.legal-hero .legal-meta {
  font-size: 15px;
  color: var(--color-text-muted);
}

.legal-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}

.legal-version {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 16px;
  font-size: 14px;
  color: var(--color-text-muted);
}

.legal-version strong {
  color: var(--color-dark);
  font-weight: 700;
}

.legal-version a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-muted);
  font-size: 14px;
  transition: color 0.2s;
}

.legal-version a:hover {
  color: var(--color-primary);
}

.legal-content h2 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-dark);
  margin: 0 0 24px;
}

.legal-content h3 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-dark);
  margin: 40px 0 16px;
}

.legal-content h3:first-of-type {
  margin-top: 0;
}

.legal-content p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 18px;
}

.legal-content ul,
.legal-content ol {
  margin: 0 0 18px 24px;
  padding: 0;
}

.legal-content li {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 8px;
}

.legal-content strong {
  color: var(--color-dark);
  font-weight: 700;
}

.legal-content a {
  color: var(--color-primary);
  font-weight: 500;
}

.legal-content a:hover {
  text-decoration: underline;
}

/* Aviso de placeholder / pendiente revisión */
.legal-notice {
  background: #FFFBEB;
  border-left: 3px solid #F59E0B;
  border-radius: 6px;
  padding: 18px 22px;
  margin: 0 0 32px;
}

.legal-notice-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: #92400E;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.legal-notice p {
  font-size: 15px;
  line-height: 1.6;
  color: #78350F;
  margin: 0;
}

.legal-notice strong {
  color: #78350F;
}

@media (max-width: 640px) {
  .legal-content {
    padding: 40px 20px 64px;
  }

  .legal-content h2 {
    font-size: 24px;
  }

  .legal-content h3 {
    font-size: 18px;
  }

  .legal-version {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 968px) {
  .nav {
    display: none;
  }

  .header-actions .lang,
  .header-actions .access {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .section,
  .page-hero {
    padding: 56px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}