/* ==========================================================================
   CCMX REAL ESTATE / VISUAL MARKETING
   Corporate Identity & Design System Specification V1.0
   Palette:
     - Carbón:    #111719 (Principal - 60%)
     - Marfil:    #F3F2ED (Fondos claros - 30%)
     - Concreto:  #A7AEAE (Información secundaria - 8%)
     - Azul Señal:#4B6CFF (Acentos y CTA - 2%)
   Typography:
     - Space Grotesk (Titulares, cifras, datos técnicos, acentos)
     - Manrope (Párrafos, descripciones funcionales)
   ========================================================================== */

:root {
  /* Brand Color Tokens */
  --color-carbon: #111719;
  --color-carbon-pure: #0b0f10;
  --color-carbon-card: #161e21;
  --color-carbon-hover: #1c262a;
  --color-carbon-border: rgba(167, 174, 174, 0.22);
  --color-carbon-border-light: rgba(167, 174, 174, 0.35);

  --color-marfil: #F3F2ED;
  --color-marfil-muted: #dcdbd3;
  --color-marfil-dim: rgba(243, 242, 237, 0.7);

  --color-concreto: #A7AEAE;
  --color-concreto-dark: #6e7777;

  --color-azul: #4B6CFF;
  --color-azul-hover: #3a5ce8;
  --color-azul-glow: rgba(75, 108, 255, 0.25);

  /* Fonts */
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Space Grotesk', monospace;

  /* Spacing & Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-body);
  background-color: var(--color-carbon);
  color: var(--color-marfil);
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--color-carbon);
  min-height: 100vh;
}

/* Typography Utility Classes */
.font-display {
  font-family: var(--font-display);
}

.font-mono {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

/* Technical Reticle Background */
.bg-grid-pattern {
  background-image: 
    linear-gradient(to right, rgba(167, 174, 174, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(167, 174, 174, 0.07) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Signal Line Component (Page 6 of Manual) */
.signal-line {
  width: 32px;
  height: 3px;
  background-color: var(--color-azul);
  display: inline-block;
}

/* ==========================================================================
   ESQUINAS DE ENCUADRE (VIEWFINDER CAMERA MARKS)
   Manual Rule 05: "Cuatro trazos abiertos que sugieren un visor de cámara"
   ========================================================================== */
.viewfinder-box {
  position: relative;
}

.corner-mark {
  position: absolute;
  width: 14px;
  height: 14px;
  pointer-events: none;
  z-index: 20;
}

.corner-mark.top-left {
  top: 8px;
  left: 8px;
  border-top: 2px solid var(--color-azul);
  border-left: 2px solid var(--color-azul);
}

.corner-mark.top-right {
  top: 8px;
  right: 8px;
  border-top: 2px solid var(--color-azul);
  border-right: 2px solid var(--color-azul);
}

.corner-mark.bottom-left {
  bottom: 8px;
  left: 8px;
  border-bottom: 2px solid var(--color-azul);
  border-left: 2px solid var(--color-azul);
}

.corner-mark.bottom-right {
  bottom: 8px;
  right: 8px;
  border-bottom: 2px solid var(--color-azul);
  border-right: 2px solid var(--color-azul);
}

/* Technical Tags & Metadata Pills */
.tech-tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  background: var(--color-carbon-card);
  border: 1px solid var(--color-carbon-border);
  color: var(--color-concreto);
  white-space: nowrap;
}

.tech-tag:hover {
  color: var(--color-marfil);
  border-color: var(--color-azul);
}

/* ==========================================================================
   BUTTONS & CTAs (Manual Rule 04: "Azul como acento y CTA")
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 10px 22px;
  border-radius: 0; /* Pure architectural square edges */
  text-decoration: none;
  transition: all var(--transition-smooth);
  cursor: pointer;
  letter-spacing: 0.02em;
}

.btn-primary {
  background-color: var(--color-azul);
  color: #FFFFFF;
  border: 1px solid var(--color-azul);
}

.btn-primary:hover {
  background-color: var(--color-azul-hover);
  border-color: var(--color-azul-hover);
  box-shadow: 0 4px 18px var(--color-azul-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-marfil);
  border: 1px solid var(--color-carbon-border-light);
}

.btn-secondary:hover {
  border-color: var(--color-marfil);
  background-color: rgba(243, 242, 237, 0.05);
}

/* Floating WhatsApp Button */
.btn-floating-whatsapp {
  border-radius: 0;
  transition: all var(--transition-smooth);
}

.btn-floating-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(75, 108, 255, 0.35);
}

/* ==========================================================================
   FORM CONTROLS & INPUTS
   ========================================================================== */
.form-input {
  width: 100%;
  background-color: var(--color-carbon-pure);
  border: 1px solid var(--color-carbon-border);
  color: var(--color-marfil);
  font-family: var(--font-body);
  font-size: 0.875rem;
  padding: 12px 14px;
  outline: none;
  border-radius: 0;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-azul);
  background-color: var(--color-carbon-card);
}

.form-input::placeholder {
  color: var(--color-concreto-dark);
}

select.form-input option {
  background-color: var(--color-carbon);
  color: var(--color-marfil);
}

/* Checkbox & Radio Customization */
.selector-card {
  transition: all var(--transition-fast);
}

.selector-card:has(input:checked) {
  border-color: var(--color-azul);
  background-color: var(--color-carbon-card);
  box-shadow: inset 0 0 0 1px var(--color-azul);
}

/* ==========================================================================
   TAB BUTTONS & SHOWCASE (4 Familias Visuales)
   ========================================================================== */
.tab-btn {
  transition: all var(--transition-fast);
  cursor: pointer;
}

.tab-btn.active {
  background-color: var(--color-carbon-card) !important;
  color: var(--color-marfil) !important;
  border-color: var(--color-azul) !important;
  position: relative;
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-azul);
}

/* ==========================================================================
   FAQ ACCORDION
   ========================================================================== */
.faq-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
}

.faq-item.active .faq-content {
  display: block;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-icon {
  transition: transform var(--transition-fast);
}

/* ==========================================================================
   RESPONSIVE LAYOUT HELPERS (Utility mimic for Tailwind-like precision)
   ========================================================================== */
.max-w-7xl { max-width: 80rem; }
.max-w-5xl { max-width: 64rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-xl { max-width: 36rem; }
.max-w-md { max-width: 28rem; }
.max-w-sm { max-width: 24rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Colors */
.bg-carbon { background-color: var(--color-carbon); }
.bg-carbon-pure { background-color: var(--color-carbon-pure); }
.bg-carbon-card { background-color: var(--color-carbon-card); }
.bg-azul { background-color: var(--color-azul); }
.text-marfil { color: var(--color-marfil); }
.text-concreto { color: var(--color-concreto); }
.text-azul { color: var(--color-azul); }
.border-carbon-border { border-color: var(--color-carbon-border); }

/* Flex & Grid */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }

.gap-1\.5 { gap: 0.375rem; }
.gap-2 { gap: 0.5rem; }
.gap-2\.5 { gap: 0.625rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-12 { gap: 3rem; }

/* Padding & Margins */
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }

.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }

.pt-2 { padding-top: 0.5rem; }
.pt-4 { padding-top: 1rem; }
.pt-6 { padding-top: 1.5rem; }
.pt-8 { padding-top: 2rem; }
.pb-6 { padding-bottom: 1.5rem; }
.pb-8 { padding-bottom: 2rem; }
.pb-10 { padding-bottom: 2.5rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }

/* Grid columns */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* Media Queries for Responsive Screens */
@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .sm\:flex-row { flex-direction: row; }
  .sm\:inline { display: inline; }
  .sm\:inline-flex { display: inline-flex; }
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
  .sm\:p-8 { padding: 2rem; }
  .sm\:p-10 { padding: 2.5rem; }
  .sm\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
  .sm\:text-5xl { font-size: 3rem; line-height: 1; }
  .sm\:text-xl { font-size: 1.25rem; line-height: 1.75rem; }
}

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .md\:col-span-3 { grid-column: span 3 / span 3; }
  .md\:col-span-4 { grid-column: span 4 / span 4; }
  .md\:col-span-5 { grid-column: span 5 / span 5; }
  .md\:flex-row { flex-direction: row; }
  .md\:items-end { align-items: flex-end; }
  .md\:pt-20 { padding-top: 5rem; }
  .md\:pb-32 { padding-bottom: 8rem; }
  .md\:p-8 { padding: 2rem; }
  .md\:inline { display: inline; }
  .md\:mt-0 { margin-top: 0; }
}

@media (min-width: 1024px) {
  .lg\:flex { display: flex; }
  .lg\:hidden { display: none; }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .lg\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .lg\:col-span-3 { grid-column: span 3 / span 3; }
  .lg\:col-span-4 { grid-column: span 4 / span 4; }
  .lg\:col-span-5 { grid-column: span 5 / span 5; }
  .lg\:col-span-6 { grid-column: span 6 / span 6; }
  .lg\:col-span-7 { grid-column: span 7 / span 7; }
  .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
  .lg\:gap-8 { gap: 2rem; }
  .lg\:text-6xl { font-size: 3.75rem; line-height: 1.05; }
}