@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600&family=Montserrat:wght@300;400;500;600;700&display=swap');

/* Declaración de Tipografía de Autor (Argesta) */
@font-face {
  font-family: 'Argesta';
  src: url('assets/fonts/ArgestaDisplay-Regular.otf') format('opentype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Argesta';
  src: url('assets/fonts/ArgestaDisplay-RegularItalic.otf') format('opentype');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

/* ==========================================================================
   CSS VARIABLES & DESIGN SYSTEM (Estilo Artesta Nórdico - Laura Manzano)
   ========================================================================== */
:root {
  /* ==========================================
     COLOR TOKENS (Nórdico, Neutro & Premium)
     ========================================== */
  --color-bg: #f2f3f3;            /* Fondo de galería gris suave contemporáneo */
  --color-surface: #ffffff;       /* Fondo de tarjetas, paneles y modales */
  --color-text: #1a1a1a;          /* Texto principal carbón profundo */
  --color-muted: #6f6f6f;         /* Gris medio para metadatos y descripciones (AA sobre --color-bg) */
  --color-muted-light: #8a8a8a;   /* SOLO decorativo: precios tachados y detalles no informativos.
                                     No usar para texto informativo (contraste < AA sobre --color-bg). */
  --color-border: #e3e5e5;        /* Gris neutro fino para bordes */
  --color-accent: #756d67;        /* Piedra cálida desaturada de acento (AA sobre --color-bg) */
  --color-accent-hover: #544e48;  /* Piedra oscura para hover */
  --color-accent-soft: #ebecec;   /* Gris galería suave para superficies secundarias */
  --color-success: #5b7a61;       /* Verde musgo suave para Disponible/Éxito */
  --color-warning: #d97706;       /* Ámbar cálido para Reservas */
  --color-danger: #b05c5c;        /* Arcilla rojiza para Vendido/Error/Descuento */
  --color-whatsapp: #20ba5a;      /* Verde WhatsApp oficial */
  --color-whatsapp-hover: #1aa34e;

  /* ==========================================
     TYPOGRAPHY TOKENS
     ========================================== */
  --font-heading: 'Argesta', 'Cinzel', serif;
  --font-body: 'Montserrat', sans-serif;

  --font-size-xs: 0.65rem;
  --font-size-sm: 0.75rem;
  --font-size-md: 0.85rem;
  --font-size-base: 0.95rem;
  --font-size-lg: 1.1rem;
  --font-size-xl: 1.3rem;
  --font-size-2xl: 1.8rem;
  --font-size-3xl: 2.4rem;
  --font-size-4xl: 4.2rem;

  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-heading: 1.15;
  --line-height-body: 1.6;

  /* ==========================================
     SPACING SYSTEM (Adaptive mobile-first clamps)
     ========================================== */
  --space-xs: clamp(0.25rem, 1vw, 0.5rem);
  --space-sm: clamp(0.5rem, 2vw, 1rem);
  --space-md: clamp(1rem, 3vw, 2rem);
  --space-lg: clamp(2rem, 5vw, 4rem);
  --space-xl: clamp(3rem, 8vw, 6rem);
  --space-2xl: clamp(4rem, 12vw, 8rem);

  /* ==========================================
     SHAPES & RADIUS
     ========================================== */
  --radius-sm: 1px;
  --radius-md: 2px;
  --radius-lg: 4px;
  --radius-round: 50%;

  /* ==========================================
     BOX SHADOWS
     ========================================== */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 30px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 15px 45px rgba(0, 0, 0, 0.08);
  
  --shadow-canvas: 
    0 2px 4px rgba(0, 0, 0, 0.04),
    0 10px 25px rgba(26, 26, 26, 0.07),
    0 20px 45px rgba(26, 26, 26, 0.05);
  --shadow-canvas-hover: 
    0 4px 8px rgba(0, 0, 0, 0.05),
    0 15px 35px rgba(26, 26, 26, 0.1),
    0 30px 65px rgba(26, 26, 26, 0.08);

  /* ==========================================
     LAYOUT, CONTAINERS & HEIGHTS
     ========================================== */
  --container-main: 1400px;
  --container-narrow: 800px;
  --height-header: 80px;

  /* ==========================================
     LAYERING & Z-INDEX SYSTEM (Semántico)
     ========================================== */
  --z-base: 1;
  --z-floating: 90;
  --z-header: 100;
  --z-overlay: 200;
  --z-drawer: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* ==========================================
     TRANSITIONS
     ========================================== */
  --transition-smooth: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: all 0.2s ease;

  /* ==========================================
     MAPEO DE RETROCOMPATIBILIDAD (Para evitar roturas)
     ========================================== */
  --bg-primary: var(--color-bg);
  --bg-secondary: var(--color-surface);
  --text-primary: var(--color-text);
  --text-secondary: var(--color-muted);
  --text-light: var(--color-muted-light);
  --border-color: var(--color-border);
  --accent-color: var(--color-accent);
  --accent-hover: var(--color-accent-hover);
  --accent-soft: var(--color-accent-soft);
  --avail-color: var(--color-success);
  --sold-color: var(--color-danger);
  --whatsapp-color: var(--color-whatsapp);
  --font-serif: var(--font-heading);
  --font-sans: var(--font-body);
  --shadow-ui: var(--shadow-md);
}

/* ==========================================================================
   RESET & CONFIGURACIÓN BASE
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
  width: 100%;
  position: relative;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-weight: 400;
  overflow-x: hidden;
  width: 100%;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
  transition: var(--transition-fast);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

/* ==========================================================================
   FORMULARIOS BASE
   ========================================================================== */
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  padding: 0.8rem 1rem;
  width: 100%;
  transition: var(--transition-fast);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--text-primary);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ==========================================================================
   BOTONES PREMIUM (BEM & Retrocompatibilidad)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background-color: transparent;
  color: var(--color-text);
  transition: var(--transition-smooth);
  cursor: pointer;
  text-align: center;
  line-height: 1.2;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.btn--primary,
.btn-primary {
  background-color: var(--color-text);
  color: var(--color-bg);
  border: 1px solid var(--color-text);
}

.btn--primary:hover,
.btn-primary:hover {
  background-color: transparent;
  color: var(--color-text);
}

.btn--secondary,
.btn-secondary {
  border: 1px solid var(--color-border);
  background-color: transparent;
  color: var(--color-text);
}

.btn--secondary:hover,
.btn-secondary:hover {
  border-color: var(--color-text);
  background-color: var(--color-accent-soft);
}

.btn--ghost {
  border-color: transparent;
  background-color: transparent;
  color: var(--color-muted);
  text-decoration: underline;
  text-underline-offset: 4px;
  padding: 0.75rem 1rem;
}

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

.btn--full {
  width: 100%;
}

.btn--icon {
  padding: 0.5rem;
  border-radius: var(--radius-round);
}

.btn--whatsapp,
.btn-whatsapp {
  background-color: var(--color-whatsapp);
  color: #ffffff;
  border: 1px solid var(--color-whatsapp);
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
}

.btn--whatsapp:hover,
.btn-whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
  border-color: var(--color-whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(32, 186, 90, 0.25);
}

.btn--whatsapp svg,
.btn-whatsapp svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
}

/* ==========================================================================
   INSIGNIAS / BADGES (BEM & Retrocompatibilidad)
   ========================================================================== */
.badge,
.status-badge {
  position: static;
  top: auto;
  left: auto;
  right: auto;
  bottom: auto;
  padding: 0.35rem 0.8rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  z-index: auto;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  display: inline-block;
}

.badge--static {
  position: static !important;
}

.badge--available,
.status-badge.disponible {
  background-color: var(--color-success);
  color: #ffffff;
  border: 1px solid var(--color-success);
}

.badge--sold,
.status-badge.vendido {
  background-color: var(--color-danger);
  color: #ffffff;
  border: 1px solid var(--color-danger);
}

.badge--reserved {
  background-color: var(--color-warning);
  color: #ffffff;
  border: 1px solid var(--color-warning);
}

.badge--discount {
  background-color: var(--color-danger);
  color: #ffffff;
  border: 1px solid var(--color-danger);
  font-weight: var(--font-weight-semibold);
}

/* ==========================================================================
   ESTADOS DE PRECIO
   ========================================================================== */
.price {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.price--sale {
  color: var(--color-danger);
  font-weight: var(--font-weight-semibold);
}

.price--old {
  text-decoration: line-through;
  color: var(--color-muted-light);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-light);
}

/* ==========================================================================
   LAYOUT COMPONENT CLASSES
   ========================================================================== */
.container {
  max-width: var(--container-main);
  margin-inline: auto;
  padding-inline: var(--space-md);
  width: 100%;
}

.container--narrow {
  max-width: var(--container-narrow);
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.stack--tight {
  gap: 0.1rem;
}

.stack--md {
  gap: var(--space-md);
}

.stack--lg {
  gap: var(--space-lg);
}

.stack--end {
  align-items: flex-end;
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
}

.split {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
}

/* ==========================================================================
   UTILITY CLASSES (Prefixed with u- and used with moderation)
   ========================================================================== */
.u-full-width {
  width: 100% !important;
}

.u-muted {
  color: var(--color-muted) !important;
}

.u-muted-light {
  color: var(--color-muted-light) !important;
}

.u-hidden {
  display: none !important;
}

.u-text-center {
  text-align: center !important;
}

.u-text-xs {
  font-size: var(--font-size-xs) !important;
}

.u-text-sm {
  font-size: var(--font-size-sm) !important;
}

.u-text-md {
  font-size: var(--font-size-md) !important;
}

.u-text-lg {
  font-size: var(--font-size-lg) !important;
}

.u-text-xl {
  font-size: var(--font-size-xl) !important;
}

.u-text-2xl {
  font-size: var(--font-size-2xl) !important;
}

.u-text-bold {
  font-weight: var(--font-weight-bold) !important;
}

.u-text-semibold {
  font-weight: var(--font-weight-semibold) !important;
}

.u-text-medium {
  font-weight: var(--font-weight-medium) !important;
}

.u-text-light {
  font-weight: var(--font-weight-light) !important;
}

.u-pointer {
  cursor: pointer !important;
}

.u-mt-xs { margin-top: 0.5rem !important; }
.u-mt-sm { margin-top: 0.8rem !important; }
.u-mt-md { margin-top: 1rem !important; }
.u-mt-lg { margin-top: 1.5rem !important; }
.u-mt-xl { margin-top: 2rem !important; }

.u-mb-xs { margin-bottom: 0.5rem !important; }
.u-mb-sm { margin-bottom: 0.8rem !important; }
.u-mb-md { margin-bottom: 1rem !important; }
.u-mb-lg { margin-bottom: 1.5rem !important; }
.u-mb-xl { margin-bottom: 2rem !important; }

.u-py-xl { padding-block: var(--space-xl) !important; }