/* ===== VARIABLES CSS MINIMALISTAS ===== */
:root {
  --primary: #2563eb;
  --primary-light: #3b82f6;
  --primary-dark: #1d4ed8;
  --secondary: #f8fafc;
  --accent: #10b981;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-900: #0f172a;
  --success: #059669;
  --error: #dc2626;
  --warning: #d97706;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET MINIMALISTA ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--gray-50);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== TIPOGRAFÍA MINIMALISTA ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

/* ===== BOTONES MINIMALISTAS ===== */
.btn-primary {
  background: var(--primary);
  color: var(--white);
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

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

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: var(--white);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.btn-ghost:hover {
  background: var(--gray-100);
  color: var(--text-primary);
}

/* ===== HEADER MINIMALISTA ===== */
.header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.95);
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.nav-buttons {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ===== HERO MINIMALISTA ===== */
.hero {
  background: var(--white);
  padding: 80px 0;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.hero-content h2 {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.05em;
}

.hero-content p {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-info {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.hero-info span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.badge {
  background: var(--gray-100);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--border);
}

/* ===== MAIN CONTENT ===== */
.main {
  padding: 48px 0;
}

/* ===== TABS MINIMALISTAS ===== */
.tabs {
  display: flex;
  gap: 0;
  margin-bottom: 48px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 4px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.tab-btn {
  flex: 1;
  padding: 12px 24px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.tab-btn.active {
  background: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* ===== FILTROS MINIMALISTAS ===== */
.category-filter {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-btn {
  padding: 8px 16px;
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: 24px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  white-space: nowrap;
}

.filter-btn.active {
  background: var(--text-primary);
  color: var(--white);
  border-color: var(--text-primary);
}

.filter-btn:hover:not(.active) {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

/* ===== GRID DE PRODUCTOS MINIMALISTA ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  hover: transform: translateY(-2px);
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--primary-light);
}

.product-header {
  padding: 24px;
}

.product-title {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
}

.product-title h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.product-status {
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-status.available {
  background: #dcfce7;
  color: var(--success);
}

.product-status.unavailable {
  background: #fef2f2;
  color: var(--error);
}

.product-description {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 16px;
}

.product-footer {
  padding: 0 24px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.product-price {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

/* ===== FORMULARIOS MINIMALISTAS ===== */
.reservation-form {
  background: var(--white);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  max-width: 600px;
  margin: 0 auto;
  box-shadow: var(--shadow-sm);
}

.reservation-form h3 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  color: var(--text-primary);
  font-size: 24px;
}

.reservation-form p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 16px;
  transition: var(--transition);
  background: var(--white);
  color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
  font-family: inherit;
}

.guest-info {
  background: var(--gray-50);
  padding: 24px;
  border-radius: var(--radius);
  margin: 24px 0;
  border: 1px solid var(--border-light);
}

.guest-info h4 {
  margin-bottom: 16px;
  color: var(--text-primary);
  font-size: 16px;
}

/* ===== CART SIDEBAR MINIMALISTA ===== */
.cart-sidebar {
  position: fixed;
  top: 0;
  right: -420px;
  width: 420px;
  height: 100vh;
  background: var(--white);
  border-left: 1px solid var(--border);
  transition: var(--transition);
  z-index: 100;
  display: flex;
  flex-direction: column;
}

.cart-sidebar.open {
  right: 0;
  box-shadow: var(--shadow-lg);
}

.cart-header {
  padding: 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-header h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-size: 18px;
}

.close-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.close-btn:hover {
  background: var(--gray-100);
  color: var(--text-primary);
}

.cart-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.cart-items {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
}

.cart-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  background: var(--white);
}

.cart-item-info h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.cart-item-info p {
  font-size: 14px;
  color: var(--text-secondary);
}

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.quantity-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}

.quantity-btn:hover {
  background: var(--gray-100);
  border-color: var(--primary);
  color: var(--primary);
}

.cart-footer {
  padding: 24px;
  border-top: 1px solid var(--border);
  background: var(--gray-50);
}

.cart-total {
  margin-bottom: 20px;
}

.total-line {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.total-line.total {
  font-weight: 600;
  font-size: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  color: var(--text-primary);
}

/* ===== MODAL MINIMALISTA ===== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  padding: 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  color: var(--text-primary);
  font-size: 20px;
}

.modal-body {
  padding: 24px;
}

/* ===== AUTH TABS MINIMALISTAS ===== */
.auth-tabs {
  display: flex;
  margin-bottom: 24px;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
  padding: 4px;
}

.auth-tab {
  flex: 1;
  padding: 8px 16px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.auth-tab.active {
  background: var(--white);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
}

/* ===== ESTADOS Y UTILIDADES ===== */
.loading {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-radius: 50%;
  border-top-color: var(--primary);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 500;
}

.alert-success {
  background: #dcfce7;
  color: var(--success);
  border: 1px solid #bbf7d0;
}

.alert-error {
  background: #fef2f2;
  color: var(--error);
  border: 1px solid #fecaca;
}

/* ===== RESPONSIVE MINIMALISTA ===== */
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-content h2 {
    font-size: 2rem;
  }
  
  .hero-info {
    flex-direction: column;
    gap: 16px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .cart-sidebar {
    width: 100%;
    right: -100%;
  }
  
  .reservation-form {
    padding: 24px;
  }
  
  .nav-wrapper {
    flex-wrap: wrap;
    gap: 16px;
  }
  
  .nav-buttons {
    order: 3;
    width: 100%;
    justify-content: center;
  }
}

/* ===== ANIMACIONES SUAVES ===== */
.fade-in {
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from { 
    opacity: 0; 
    transform: translateY(8px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

/* ===== UTILIDADES ===== */
.text-center { text-align: center; }
.hidden { display: none !important; }
.sr-only { 
  position: absolute; 
  width: 1px; 
  height: 1px; 
  padding: 0; 
  margin: -1px; 
  overflow: hidden; 
  clip: rect(0, 0, 0, 0); 
  white-space: nowrap; 
  border: 0; 
}