:root {
    --cream: #F4F1EA;
    --cream-card: #FFFFFF;
    --ink: #1F1B16;
    --ink-soft: #5B5650;
    --gold: #C8932A;
    --gold-dark: #A66F1E;
    --gold-light: #E0A93F;
    --maroon: #2A1810;
    --border: #E7E2D8;
    --input-bg: #F7F5F0;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-card: 0 12px 32px -8px rgba(31, 27, 22, 0.08);
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  }
  
  * {
    box-sizing: border-box;
  }
  
  html, body {
    margin: 0;
    padding: 0;
    background: var(--cream);
    color: var(--ink);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
  }
  
  img {
    max-width: 100%;
    display: block;
  }
  
  button {
    font-family: inherit;
    cursor: pointer;
  }
  
  /* ===== Top bar ===== */
  .topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 28px;
    position: relative;
  }
  
  .lang-select-wrap {
    position: relative;
  }
  
  .lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--cream-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    box-shadow: var(--shadow-card);
  }
  
  .lang-flag {
    font-size: 16px;
    line-height: 1;
  }
  
  .lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--cream-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow-card);
    min-width: 170px;
    overflow: hidden;
    z-index: 50;
    display: none;
  }
  
  .lang-dropdown.open {
    display: block;
  }
  
  .lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 11px 16px;
    font-size: 14px;
    color: var(--ink);
  }
  
  .lang-option:hover {
    background: var(--input-bg);
  }
  
  .lang-option.active {
    font-weight: 600;
    color: var(--gold-dark);
  }
  
  .menu-btn {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--cream-card);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-card);
  }
  
  /* ===== Header / hero ===== */
  .hero {
    text-align: center;
    padding: 8px 20px 36px;
  }
  
  .logo-mark {
    width: 92px;
    height: 92px;
    margin: 0 auto 24px;
    border-radius: 22px;
    background: linear-gradient(160deg, #2A1810 0%, #1A0F09 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 24px -6px rgba(42, 24, 16, 0.45);
  }
  
  .logo-mark svg {
    width: 54px;
    height: 54px;
  }
  
  .restaurant-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 42px;
    margin: 0 0 16px;
    letter-spacing: 0.2px;
  }
  
  .hero-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--ink-soft);
    font-size: 15px;
  }
  
  .hero-meta div {
    display: flex;
    align-items: center;
    gap: 7px;
  }
  
  .hero-meta svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    color: var(--gold);
  }
  
  /* ===== Main layout ===== */
  .main-grid {
    max-width: 1380px;
    margin: 36px auto 0;
    padding: 0 28px;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 36px;
    align-items: start;
  }
  
  /* ===== Slider column ===== */
  .slider-col {
    display: flex;
    flex-direction: column;
  }
  
  .swiper {
    width: 100%;
    aspect-ratio: 4 / 5;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-card);
  }
  
  .swiper-slide {
    position: relative;
  }
  
  .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .slide-caption {
    position: absolute;
    left: 20px;
    bottom: 20px;
    background: rgba(20, 16, 12, 0.78);
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    padding: 10px 18px;
    border-radius: 10px;
    backdrop-filter: blur(4px);
    z-index: 5;
  }
  
  .swiper-button-prev,
  .swiper-button-next {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.92);
    border-radius: 10px;
    color: var(--ink);
    box-shadow: 0 4px 14px rgba(0,0,0,0.18);
  }
  
  .swiper-button-prev::after,
  .swiper-button-next::after {
    font-size: 15px;
    font-weight: 700;
  }
  
  .swiper-pagination-bullet {
    background: #fff;
    opacity: 0.55;
  }
  
  .swiper-pagination-bullet-active {
    opacity: 1;
    background: var(--gold);
  }
  
  .info-list {
    list-style: none;
    margin: 18px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  
  .info-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--ink-soft);
    font-size: 15px;
  }
  
  .info-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--gold);
    margin-top: 7px;
    flex-shrink: 0;
  }
  
  /* ===== Reservation card ===== */
  .reservation-card {
    background: var(--cream-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 36px 36px 32px;
  }
  
  .reservation-card h2 {
    font-family: var(--font-display);
    font-size: 26px;
    text-align: center;
    margin: 0 0 6px;
  }
  
  .reservation-sub {
    text-align: center;
    color: var(--ink-soft);
    font-size: 14.5px;
    margin: 0 0 28px;
  }
  
  .field {
    margin-bottom: 20px;
  }
  
  .field-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14.5px;
    font-weight: 600;
    margin-bottom: 9px;
    color: var(--ink);
  }
  
  .field-label svg {
    width: 16px;
    height: 16px;
    color: var(--ink);
    flex-shrink: 0;
  }
  
  .field input[type="text"],
  .field input[type="email"],
  .field input[type="tel"] {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 13px 16px;
    font-size: 14.5px;
    color: var(--ink);
    font-family: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
  }
  
  .field input::placeholder {
    color: #A8A29A;
  }
  
  .field input:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(200, 147, 42, 0.15);
  }
  
  .field-error {
    color: #C0392B;
    font-size: 12.5px;
    margin-top: 6px;
    display: none;
  }
  
  .field.invalid input {
    border-color: #C0392B;
  }
  
  .field.invalid .field-error {
    display: block;
  }
  
  /* Guests stepper */
  .guest-stepper {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  
  .stepper-btn {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: var(--input-bg);
    border: 1px solid var(--border);
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
  
  .stepper-btn:active {
    background: #ECE8DF;
  }
  
  .stepper-value {
    width: 56px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 600;
    background: var(--input-bg);
    flex-shrink: 0;
  }
  
  .guest-unit {
    color: var(--ink-soft);
    font-size: 14.5px;
  }
  
  /* Date field */
  .date-field {
    position: relative;
  }
  
  .date-field svg {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 17px;
    height: 17px;
    color: var(--ink-soft);
    pointer-events: none;
  }
  .date-field input{
    padding-left: 44px !important;
  }
  .date-display {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 13px 16px 13px 44px;
    font-size: 14.5px;
    color: var(--ink);
    font-family: inherit;
    cursor: pointer;
  }
  
  .date-today-tag {
    color: var(--ink-soft);
    font-weight: 400;
  }
  
  input[type="date"].native-date {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
  }
  
  /* Time selector */
  .time-toggle {
    display: flex;
    gap: 28px;
    margin-bottom: 16px;
  }
  
  .time-toggle-opt {
    display: flex;
    align-items: center;
    gap: 7px;
    background: none;
    border: none;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--ink-soft);
    padding: 4px 0;
    border-bottom: 2px solid transparent;
  }
  
  .time-toggle-opt.active {
    color: var(--ink);
    border-bottom-color: var(--gold);
    font-weight: 700;
  }
  
  .time-slots {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .time-slot {
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 0;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--ink);
    text-align: center;
  }
  
  .time-slot.selected {
    background: var(--maroon);
    color: #fff;
    border-color: var(--maroon);
  }
  
  .book-btn {
    width: 100%;
    margin-top: 8px;
    background: linear-gradient(95deg, var(--gold-dark) 0%, var(--gold-light) 100%);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 16px 0;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.2px;
    box-shadow: 0 10px 24px -8px rgba(166, 111, 30, 0.55);
    transition: transform 0.12s, box-shadow 0.12s;
  }
  
  .book-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 28px -8px rgba(166, 111, 30, 0.6);
  }
  
  .book-btn:active {
    transform: translateY(0);
  }
  
  .book-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
  }
  
  /* ===== Footer ===== */
  
  .footer-links {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-bottom: 18px;
  }
  
  .footer-links a {
    color: var(--ink);
    text-decoration: underline;
    font-size: 14.5px;
  }
  
  .footer-copy {
    color: var(--ink-soft);
    font-size: 13.5px;
    margin: 0 0 6px;
  }
  
  .footer-credit {
    color: var(--ink-soft);
    font-size: 13.5px;
    margin: 0;
  }
  
  .footer-credit a {
    color: var(--ink);
    text-decoration: underline;
  }
  
  /* ===== Toast ===== */
  .toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--maroon);
    color: #fff;
    padding: 14px 26px;
    border-radius: 12px;
    font-size: 14.5px;
    font-weight: 500;
    box-shadow: 0 14px 30px -8px rgba(0,0,0,0.35);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s, transform 0.25s;
    z-index: 200;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
  }
  
  .toast svg {
    width: 18px;
    height: 18px;
    color: var(--gold-light);
    flex-shrink: 0;
  }
  
  /* ===== Responsive ===== */
  @media (max-width: 980px) {
    .main-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }
    .swiper {
      aspect-ratio: 16 / 11;
    }
  }
  
  @media (max-width: 560px) {
    .topbar {
      padding: 16px 18px;
    }
    .restaurant-name {
      font-size: 32px;
    }
    .hero-meta {
      font-size: 13.5px;
    }
    .main-grid {
      padding: 0 16px;
    }
    .reservation-card {
      padding: 26px 20px 24px;
    }
    .time-slots {
      grid-template-columns: repeat(2, 1fr);
    }
    .footer-links {
      gap: 18px;
      flex-wrap: wrap;
    }
  }

  /* nav-mobile.css
   CSS cho menu mobile (.nav-mobile-toggle + .nav-links.is-open)
   Tone màu lấy theo hero: nền xanh đen rất tối, chữ kem/trắng, accent vàng gold.
   Ghép file này vào cuối style-menu.css, hoặc link riêng SAU style-menu.css:
   <link rel="stylesheet" href="nav-mobile.css" />
*/

:root {
  --hg-bg-dark: #0d1712;         /* nền tối chủ đạo, gần với overlay hero */
  --hg-bg-dark-solid: #0f1a14;   /* bản đặc, dùng cho dropdown mobile */
  --hg-gold: #d8a53d;            /* vàng gold chính (nút Đặt Bàn, accent) */
  --hg-gold-light: #e8c874;      /* vàng nhạt hơn cho hover/underline */
  --hg-cream: #f5f1e6;           /* chữ chính màu kem/trắng ngà */
  --hg-line: rgba(216, 165, 61, 0.25); /* viền vàng mờ */
}

/* Nút hamburger */
.nav-mobile-toggle {
  color: var(--hg-cream);
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-mobile-toggle svg {
  stroke: var(--hg-cream);
  transition: stroke 0.2s ease, transform 0.25s ease;
}

.nav-mobile-toggle.is-active svg {
  stroke: var(--hg-gold);
}

/* Hiệu ứng hamburger -> X khi mở (áp dụng nếu SVG gồm 3 line) */
.nav-mobile-toggle.is-active svg line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav-mobile-toggle.is-active svg line:nth-child(2) {
  opacity: 0;
}
.nav-mobile-toggle.is-active svg line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}
.nav-mobile-toggle svg line {
  transform-origin: center;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

@media (max-width: 900px) {
  .nav-mobile-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    z-index: 60;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    background: var(--hg-bg-dark-solid);
    border-top: 1px solid var(--hg-line);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
    transition: max-height 0.35s ease, opacity 0.25s ease;
    z-index: 55;
  }

  .nav-links.is-open {
    max-height: 400px;
    opacity: 1;
    visibility: visible;
    gap: 0;
  }

  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 16px 24px;
    color: var(--hg-cream);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 13px;
    font-weight: 600;
    border-bottom: 1px solid var(--hg-line);
    transition: color 0.2s ease, background 0.2s ease;
  }

  .nav-links a:last-child {
    border-bottom: none;
  }

  .nav-links a:hover,
  .nav-links a:focus {
    color: var(--hg-gold-light);
    background: rgba(216, 165, 61, 0.08);
  }

  /* Link trang hiện tại — giữ phong cách khung viền vàng như bản desktop (vd nút TRANG CHỦ) */
  .nav-links a.is-current {
    color: var(--hg-bg-dark);
    background: var(--hg-gold);
  }

  body.nav-open {
    overflow: hidden;
  }
}

@media (min-width: 901px) {
  /* Đảm bảo desktop không bị dính style mobile nếu JS lỡ toggle class */
  .nav-links {
    max-height: none;
    opacity: 1;
    visibility: visible;
    position: static;
    flex-direction: row;
    background: transparent;
    border: none;
    box-shadow: none;
  }
}