/* ==========================================================================
   RESUELVE MARKET - Estilos Globales y Sistema de Diseño
   ========================================================================== */

:root {
  /* Paleta Corporativa */
  --color-primary: #FF5B00;
  --color-primary-hover: #E04F00;
  --color-primary-light: #FFF0E6;
  
  --color-blue: #0056D2;
  --color-blue-hover: #0043A6;
  --color-blue-light: #EBF3FF;
  
  --color-navy: #0B2545;
  --color-navy-dark: #07172B;
  --color-text-main: #1E293B;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;

  --color-success: #16A34A;
  --color-success-bg: #DCFCE7;
  --color-discount: #EF4444;
  --color-discount-bg: #FEE2E2;

  --color-bg-page: #F8FAFC;
  --color-bg-surface: #FFFFFF;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;

  /* Tipografía */
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  
  /* Sombras */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px rgba(11, 37, 69, 0.06);
  --shadow-md: 0 4px 12px rgba(11, 37, 69, 0.08);
  --shadow-lg: 0 10px 25px rgba(11, 37, 69, 0.12);
  --shadow-hover: 0 12px 30px rgba(255, 91, 0, 0.15);

  /* Bordes */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  /* Transiciones */
  --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset y caja */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: clamp(70px, 10vw, 120px);
  overflow-x: clip;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg-page);
  color: var(--color-text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
  width: 100%;
}

body.mobile-nav-open {
  overflow: hidden;
  touch-action: none;
}

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

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

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

input, select, textarea {
  font-family: inherit;
  font-size: 0.95rem;
}

/* Sistema de Contenedores Responsive Multi-Nivel */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(16px, 4.5vw, 24px);
  padding-right: clamp(16px, 4.5vw, 24px);
}

@media (min-width: 640px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1360px;
    padding-left: 32px;
    padding-right: 32px;
  }
}

@media (min-width: 1440px) {
  .container {
    max-width: 1600px;
    padding-left: 40px;
    padding-right: 40px;
  }
}

@media (min-width: 1800px) {
  .container {
    max-width: 1840px;
    padding-left: 52px;
    padding-right: 52px;
  }
}

@media (min-width: 2200px) {
  .container {
    max-width: 2120px;
    padding-left: 64px;
    padding-right: 64px;
  }
}

/* Botones Base */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(255, 91, 0, 0.28);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(255, 91, 0, 0.35);
}

.btn-outline {
  background-color: #FFFFFF;
  color: var(--color-blue);
  border: 1.5px solid var(--color-blue);
}

.btn-outline:hover {
  background-color: var(--color-blue-light);
  color: var(--color-blue-hover);
}

.btn-secondary {
  background-color: var(--color-blue);
  color: #FFFFFF;
}

.btn-secondary:hover {
  background-color: var(--color-blue-hover);
}

.btn-whatsapp {
  background-color: #25D366;
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  background-color: #20BD5A;
  transform: translateY(-1px);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
}

/* Títulos de Secciones */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 24px;
}

.section-title {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.02em;
}

.section-title .highlight {
  color: var(--color-primary);
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.section-link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-blue);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.section-link:hover {
  color: var(--color-blue-hover);
  text-decoration: underline;
}

/* Indicadores de Stock */
.stock-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-success);
}

.stock-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-success);
  box-shadow: 0 0 0 2px var(--color-success-bg);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--color-navy);
  color: #FFFFFF;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.92rem;
  font-weight: 600;
  pointer-events: auto;
  animation: slideInLeft 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.fade-out {
  opacity: 0;
  transform: translateX(-20px);
}

.toast-icon {
  display: flex;
  align-items: center;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}