/* ==========================================
   DESIGN SYSTEM: TRUNG NGUYEN LEGEND STYLE
   ========================================== */

:root {
  --color-bg: #FAF7F2;          /* Màu giấy ngà mộc mạc */
  --color-primary: #3D2514;     /* Màu nâu đậm Espresso chín */
  --color-primary-light: #523420;
  --color-accent: #C5A880;      /* Màu vàng cát ấm của hạt cafe rang */
  --color-accent-dark: #A98C64;
  --color-text-dark: #2D2119;   /* Chữ đen nâu trầm */
  --color-text-muted: #756860;  /* Chữ xám nâu */
  --color-white: #FFFFFF;
  --color-success: #2E7D32;     /* Màu xanh lá đậm thanh tao */
  
  --font-serif: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  
  --shadow-soft: 0 4px 20px rgba(61, 37, 20, 0.06);
  --shadow-medium: 0 8px 30px rgba(61, 37, 20, 0.12);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-dark);
  line-height: 1.5;
  padding-bottom: 90px; /* Chừa khoảng trống cho giỏ hàng nổi */
  overflow-x: hidden;
}

input, textarea, button {
  font-family: inherit;
  font-size: inherit;
}

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

.app-header {
  background-color: var(--color-primary);
  color: var(--color-accent);
  padding: 30px 20px 25px 20px;
  position: relative;
  text-align: center;
  border-bottom: 2px solid var(--color-accent);
  box-shadow: var(--shadow-medium);
}

.header-decor {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  bottom: 10px;
  border: 1px dashed rgba(197, 168, 128, 0.3);
  pointer-events: none;
}

.brand-slogan {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  opacity: 0.8;
  display: block;
  margin-bottom: 6px;
}

.brand-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-white);
  margin-bottom: 12px;
}

.table-tag {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 4px 16px;
  border-radius: 50px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
  letter-spacing: 0.5px;
}

/* ==========================================
   SEARCH COMPONENT
   ========================================== */

.search-bar-container {
  padding: 20px;
}

.search-bar {
  display: flex;
  align-items: center;
  background-color: var(--color-white);
  border: 1px solid rgba(197, 168, 128, 0.4);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
}

.search-bar:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(61, 37, 20, 0.1);
}

.search-icon {
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  margin-right: 12px;
}

.search-bar input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  color: var(--color-text-dark);
  font-weight: 400;
}

.search-bar input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

/* ==========================================
   CATEGORIES NAV
   ========================================== */

.categories-nav {
  display: flex;
  gap: 10px;
  padding: 0 20px 15px 20px;
  overflow-x: auto;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.categories-nav::-webkit-scrollbar {
  display: none; /* Ẩn scrollbar để giao diện mượt mà */
}

.category-tab {
  white-space: nowrap;
  background-color: var(--color-white);
  color: var(--color-primary);
  border: 1px solid rgba(197, 168, 128, 0.3);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s ease;
}

.category-tab.active {
  background-color: var(--color-primary);
  color: var(--color-accent);
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(61, 37, 20, 0.2);
}

/* ==========================================
   MENU LIST & CARDS
   ========================================== */

.menu-section {
  padding: 0 20px 20px 20px;
}

.menu-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media(min-width: 480px) {
  .menu-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.product-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid rgba(197, 168, 128, 0.2);
  display: flex;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
}

.product-card:active {
  transform: scale(0.98);
}

.product-img {
  width: 110px;
  height: 110px;
  object-fit: cover;
  flex-shrink: 0;
}

.product-info {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-grow: 1;
  min-width: 0; /* Cho phép text trích dẫn dấu ba chấm */
}

.product-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.product-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
  line-height: 1.4;
}

.product-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.product-price {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-dark);
}

.add-btn {
  background-color: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-primary);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.product-card:hover .add-btn {
  background-color: var(--color-primary);
  color: var(--color-accent);
  border-color: var(--color-primary);
}

/* Trạng thái hết hàng */
.product-card.out-of-stock {
  opacity: 0.6;
}

.product-card.out-of-stock .add-btn {
  display: none;
}

.stock-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background-color: rgba(0, 0, 0, 0.6);
  color: white;
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 500;
}

/* Loading */
.loading-spinner {
  text-align: center;
  padding: 40px 0;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ==========================================
   FLOATING CART
   ========================================== */

.floating-cart {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  z-index: 99;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.cart-trigger-btn {
  width: 100%;
  background-color: var(--color-primary);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  color: var(--color-white);
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-medium);
  cursor: pointer;
}

.cart-left, .cart-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cart-badge {
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  min-width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

.cart-label {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.cart-total {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-accent);
}

.cart-arrow {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
}

/* ==========================================
   MODAL OVERLAYS & CONTAINERS
   ========================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(45, 33, 25, 0.6);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: flex-end; /* Mobile: trượt lên từ đáy */
  justify-content: center;
  animation: fadeIn 0.25s ease;
}

@media(min-width: 480px) {
  .modal-overlay {
    align-items: center; /* Desktop: căn giữa */
  }
}

.modal-container {
  background-color: var(--color-bg);
  width: 100%;
  max-height: 85vh;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-medium);
  border-top: 3px solid var(--color-accent);
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 24px 20px;
}

@media(min-width: 480px) {
  .modal-container {
    width: 440px;
    max-height: 80vh;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-accent);
    border-top: 4px solid var(--color-accent);
  }
}

.modal-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--color-white);
  border: 1px solid rgba(197, 168, 128, 0.3);
  color: var(--color-text-dark);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
}

.modal-header {
  margin-bottom: 16px;
}

.modal-title {
  font-family: var(--font-serif);
  color: var(--color-primary);
  font-size: 1.4rem;
  font-weight: 700;
}

.modal-body {
  overflow-y: auto;
  flex-grow: 1;
  padding-bottom: 10px;
}

/* Custom Scrollbar cho Modal */
.modal-body::-webkit-scrollbar {
  width: 4px;
}
.modal-body::-webkit-scrollbar-thumb {
  background-color: var(--color-accent);
  border-radius: 2px;
}

.modal-footer {
  padding-top: 16px;
  border-top: 1px dashed rgba(197, 168, 128, 0.3);
}

/* Button UI */
.primary-btn {
  background-color: var(--color-primary);
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 14px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.primary-btn:active {
  transform: scale(0.97);
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ==========================================
   OPTION MODAL SPECIFICS
   ========================================== */

.option-product-info {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  align-items: center;
}

.option-product-info img {
  width: 70px;
  height: 70px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-accent);
}

.opt-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-primary);
}

.opt-price {
  font-weight: 600;
  color: var(--color-text-dark);
}

.option-section {
  margin-bottom: 18px;
}

.option-title {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.options-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.option-pill {
  background-color: var(--color-white);
  border: 1px solid rgba(197, 168, 128, 0.4);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--color-text-dark);
  cursor: pointer;
  transition: all 0.2s;
}

.option-pill.selected {
  background-color: var(--color-primary);
  color: var(--color-accent);
  border-color: var(--color-primary);
}

textarea {
  width: 100%;
  border: 1px solid rgba(197, 168, 128, 0.4);
  border-radius: var(--radius-sm);
  padding: 10px;
  resize: none;
  height: 70px;
  outline: none;
}

textarea:focus {
  border-color: var(--color-primary);
}

.option-qty-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px dashed rgba(197, 168, 128, 0.3);
}

.quantity-controller {
  display: flex;
  align-items: center;
  background-color: var(--color-white);
  border: 1px solid rgba(197, 168, 128, 0.4);
  border-radius: 50px;
  overflow: hidden;
}

.quantity-controller button {
  background: transparent;
  border: none;
  width: 36px;
  height: 36px;
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-primary);
}

.quantity-controller button:active {
  background-color: rgba(197, 168, 128, 0.1);
}

.quantity-controller span {
  font-weight: 600;
  padding: 0 10px;
  min-width: 24px;
  text-align: center;
}

/* ==========================================
   CART MODAL SPECIFICS
   ========================================== */

.cart-items-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.cart-item {
  display: flex;
  justify-content: space-between;
  background-color: var(--color-white);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  border: 1px solid rgba(197, 168, 128, 0.2);
}

.cart-item-details h4 {
  font-family: var(--font-serif);
  color: var(--color-primary);
  font-size: 0.95rem;
}

.cart-item-details p {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.cart-item-price {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-dark);
  margin-top: 4px;
}

.cart-item-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
}

.delete-item-btn {
  background: transparent;
  border: none;
  color: #c62828;
  cursor: pointer;
  padding: 4px;
}

.payment-selection-section {
  margin-bottom: 20px;
}

.payment-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.payment-option-card {
  position: relative;
  cursor: pointer;
}

.payment-option-card input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.payment-card-content {
  background-color: var(--color-white);
  border: 1px solid rgba(197, 168, 128, 0.4);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  transition: all 0.2s;
}

.payment-card-content svg {
  width: 24px;
  height: 24px;
  color: var(--color-text-muted);
}

.payment-card-content span {
  font-size: 0.8rem;
  font-weight: 500;
}

.payment-option-card input:checked + .payment-card-content {
  border-color: var(--color-primary);
  background-color: rgba(61, 37, 20, 0.04);
}

.payment-option-card input:checked + .payment-card-content svg {
  color: var(--color-primary);
}

.cart-summary {
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px solid rgba(197, 168, 128, 0.2);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.summary-line {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}

.summary-line.highlight {
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: 4px;
}

.gold-text {
  color: #B48A4E;
}

/* ==========================================
   SUCCESS & VIETQR MODAL
   ========================================== */

.text-center {
  text-align: center;
}

.success-icon-wrapper {
  background-color: rgba(46, 125, 50, 0.1);
  color: var(--color-success);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 10px 0 20px 0;
}

.success-icon {
  width: 30px;
  height: 30px;
}

.success-title {
  font-family: var(--font-serif);
  color: var(--color-primary);
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.success-msg {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.order-id-badge {
  display: inline-block;
  background-color: var(--color-white);
  border: 1px solid var(--color-accent);
  padding: 6px 16px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.qr-divider {
  border-top: 1px dashed rgba(197, 168, 128, 0.4);
  margin: 20px 0;
}

.qr-title {
  font-family: var(--font-serif);
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.qr-subtitle {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 15px;
}

.qr-image-wrapper {
  background-color: var(--color-white);
  padding: 12px;
  border: 1px solid rgba(197, 168, 128, 0.3);
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 15px;
  box-shadow: var(--shadow-soft);
}

.qr-image-wrapper img {
  width: 180px;
  height: 180px;
  display: block;
}

.bank-details-box {
  background-color: var(--color-white);
  border: 1px solid rgba(197, 168, 128, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px;
  text-align: left;
  max-width: 280px;
  margin: 0 auto 20px auto;
  font-size: 0.85rem;
}

.bank-details-box p {
  margin-bottom: 4px;
}

.bank-details-box p:last-child {
  margin-bottom: 0;
}

.code-text {
  font-family: monospace;
  background-color: rgba(61, 37, 20, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
  color: var(--color-primary);
}

.wait-tip {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: 12px;
}

/* ==========================================
   ANIMATIONS
   ========================================== */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}