:root {
  --color-primary: #B91C1C;
  --color-primary-light: #DC2626;
  --color-primary-dark: #7F1D1D;
  --color-accent: #D97706;
  --color-accent-light: #FBBF24;
  --color-bg: #FFFBEB;
  --color-bg-alt: #FEF3C7;
  --color-bg-dark: #1C1917;
  --color-bg-card: #FFFFFF;
  --color-text: #292524;
  --color-text-light: #78716C;
  --color-text-inverse: #FFFBEB;
  --color-whatsapp: #25D366;
  --color-whatsapp-dark: #128C7E;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Outfit', 'Noto Sans SC', sans-serif;
  --font-chinese: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-full: 9999px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.16);
  --wa-button-size: 60px;
  --tap-target: 44px;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); color: var(--color-text); background-color: var(--color-bg); line-height: 1.6; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--space-sm); }
.cn { font-family: var(--font-chinese); }
section { padding: var(--space-xl) 0; }
.section-header { text-align: center; margin-bottom: var(--space-lg); }
.section-subtitle { display: inline-block; font-size: 0.875rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.15em; color: var(--color-accent); margin-bottom: var(--space-xs); }
.section-title { font-family: var(--font-display); font-size: clamp(2rem, 5vw, 3rem); line-height: 1.2; color: var(--color-primary-dark); }
.section-title .cn { display: block; font-size: 0.7em; font-family: var(--font-chinese); color: var(--color-text-light); margin-top: var(--space-xs); }

/* NAVBAR */
.navbar { position: sticky; top: 0; z-index: 1000; background: rgba(255, 251, 235, 0.95); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(0,0,0,0.06); }
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: var(--space-sm); }
.nav-logo { font-family: var(--font-display); font-size: 1.35rem; color: var(--color-primary-dark); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-cta { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.6rem 1.1rem; min-height: var(--tap-target); background: var(--color-whatsapp); color: white; border-radius: var(--radius-full); font-weight: 600; font-size: 0.9rem; white-space: nowrap; }
.nav-cta svg { width: 18px; height: 18px; }

/* HERO */
.hero { padding: var(--space-lg) 0; text-align: center; background: linear-gradient(135deg, rgba(185, 28, 28, 0.08) 0%, rgba(217, 119, 6, 0.08) 100%), var(--color-bg); }
.hero-content { max-width: 700px; margin: 0 auto; padding: 0 var(--space-sm); }
.hero-title { font-family: var(--font-display); font-size: clamp(1.8rem, 6vw, 3rem); color: var(--color-primary-dark); margin-bottom: var(--space-sm); }
.hero-note { color: var(--color-text-light); font-size: 1rem; }

/* MENU */
.menu-categories { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-xs); margin-bottom: var(--space-lg); }
.menu-cat-btn { padding: 0.65rem 1.25rem; min-height: var(--tap-target); border-radius: var(--radius-full); font-weight: 500; font-size: 0.9rem; background: var(--color-bg-card); color: var(--color-text-light); border: 1px solid rgba(0,0,0,0.08); }
.menu-cat-btn.active { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.menu-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: var(--space-md); }
.menu-item { background: var(--color-bg-card); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
.menu-item-image { aspect-ratio: 16/10; background: linear-gradient(135deg, var(--color-bg-alt) 0%, rgba(185, 28, 28, 0.1) 100%); position: relative; overflow: hidden; }
.menu-item-image img { width: 100%; height: 100%; object-fit: cover; }
.menu-item-image .price-tag { position: absolute; bottom: var(--space-sm); right: var(--space-sm); background: var(--color-primary); color: white; padding: 0.4rem 0.75rem; border-radius: var(--radius-full); font-weight: 700; font-size: 0.9rem; }
.menu-item-image .sold-out-badge { position: absolute; top: var(--space-sm); left: var(--space-sm); background: rgba(28,25,23,0.85); color: #fff; padding: 0.35rem 0.7rem; border-radius: var(--radius-full); font-size: 0.75rem; font-weight: 700; }
.menu-item.is-sold-out { opacity: 0.6; }
.menu-item-content { padding: var(--space-md); display: flex; flex-direction: column; flex: 1; }
.menu-item-title { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 0.25rem; }
.menu-item-title .cn { font-family: var(--font-chinese); font-size: 0.85em; color: var(--color-text-light); }
.menu-item-desc { font-size: 0.875rem; color: var(--color-text-light); margin-bottom: var(--space-sm); }
.card-controls { margin-top: auto; padding-top: var(--space-sm); display: grid; gap: 0.5rem; }
.qty-wrapper { display: flex; align-items: center; justify-content: space-between; background: var(--color-bg); border-radius: var(--radius-full); padding: 0.25rem 0.4rem; }
.qty-btn { width: var(--tap-target); height: var(--tap-target); border-radius: 50%; font-size: 1.2rem; font-weight: 700; color: var(--color-text); display: flex; align-items: center; justify-content: center; }
.qty-btn:hover { background: var(--color-bg-alt); }
.qty-input { width: 44px; text-align: center; border: none; background: transparent; font-family: inherit; font-size: 1rem; font-weight: 600; pointer-events: none; }
.addon-btn { padding: 0.6rem 1rem; min-height: var(--tap-target); border-radius: var(--radius-full); border: 2px solid var(--color-primary); color: var(--color-primary); font-weight: 600; font-size: 0.95rem; background: transparent; }
.addon-btn:hover { background: var(--color-primary); color: #fff; }
.add-btn { padding: 0.7rem 1rem; min-height: var(--tap-target); border-radius: var(--radius-full); background: var(--color-primary); color: #fff; font-weight: 700; font-size: 0.95rem; }
.add-btn:hover { background: var(--color-primary-dark); }
.add-btn:active { transform: scale(0.97); }

/* FOOTER */
.footer { background: var(--color-bg-dark); color: var(--color-text-inverse); padding: var(--space-lg) 0; text-align: center; }
.footer p { color: rgba(255,255,255,0.7); font-size: 0.9rem; margin-top: 0.35rem; }
.footer a { color: var(--color-whatsapp); font-weight: 600; }

/* FLOATING CART BUTTON */
.cart-fab { position: fixed; bottom: calc(24px + var(--wa-button-size) + 16px); right: 24px; width: var(--wa-button-size); height: var(--wa-button-size); border-radius: 50%; background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(185, 28, 28, 0.4); z-index: 1150; }
.cart-fab:hover { background: var(--color-primary-dark); }
.cart-fab svg { width: 26px; height: 26px; stroke: #fff; }
.cart-count { position: absolute; top: -4px; right: -4px; min-width: 22px; height: 22px; border-radius: var(--radius-full); background: var(--color-accent-light); color: var(--color-bg-dark); font-size: 0.75rem; font-weight: 700; display: flex; align-items: center; justify-content: center; padding: 0 5px; }

/* SIDE CART DRAWER */
.cart-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 1200; display: none; }
.cart-backdrop.open { display: block; }
.side-cart { position: fixed; top: 0; right: -110%; width: min(400px, 100vw); height: 100%; height: 100dvh; background: var(--color-bg-card); z-index: 1300; display: flex; flex-direction: column; box-shadow: var(--shadow-xl); transition: right .3s ease; }
.side-cart.open { right: 0; }
.cart-header { display: flex; align-items: center; justify-content: space-between; padding: var(--space-sm) var(--space-md); border-bottom: 1px solid rgba(0,0,0,.08); }
.cart-header h3 { font-family: var(--font-display); font-size: 1.35rem; color: var(--color-primary-dark); }
.close-cart { font-size: 1.5rem; color: var(--color-text-light); width: var(--tap-target); height: var(--tap-target); }
.cart-items { flex: 1; overflow-y: auto; padding: var(--space-sm) var(--space-md); }
.cart-item { padding: 0.6rem 0; border-bottom: 1px dashed rgba(0,0,0,.08); }
.cart-item-top { display: flex; justify-content: space-between; gap: 0.5rem; }
.cart-item-title { font-weight: 600; font-size: 0.95rem; }
.cart-item-addons { font-size: 0.8rem; color: var(--color-text-light); margin-top: 2px; }
.cart-item-price { font-weight: 600; white-space: nowrap; }
.cart-item-controls { display: flex; align-items: center; justify-content: space-between; margin-top: 0.4rem; }
.qty-ctrl { display: flex; align-items: center; gap: 0.5rem; }
.qty-ctrl button { width: var(--tap-target); height: var(--tap-target); border-radius: 50%; background: var(--color-bg-alt); color: var(--color-primary-dark); font-weight: 700; font-size: 1rem; display: flex; align-items: center; justify-content: center; }
.qty-ctrl button:hover { background: var(--color-accent-light); }
.remove-btn { color: var(--color-primary); font-size: 0.8rem; font-weight: 600; min-height: var(--tap-target); padding: 0 0.5rem; }
.cart-empty { text-align: center; color: var(--color-text-light); padding: var(--space-lg) 0; }
.customer-info { padding: var(--space-sm) var(--space-md); border-top: 1px solid rgba(0,0,0,.08); display: grid; gap: 0.5rem; }
.customer-info label { font-size: 0.8rem; font-weight: 600; color: var(--color-text-light); }
.customer-info input, .customer-info select { width: 100%; padding: 0.55rem 0.75rem; min-height: var(--tap-target); border: 1px solid rgba(0,0,0,.15); border-radius: var(--radius-sm); font-family: inherit; font-size: 0.95rem; background: #fff; }
.cart-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; }
.cart-footer { padding: var(--space-sm) var(--space-md); border-top: 1px solid rgba(0,0,0,.08); display: grid; gap: 0.5rem; }
.cart-total-line { display: flex; justify-content: space-between; font-weight: 700; font-size: 1.1rem; }
.copy-btn { padding: 0.7rem 1rem; min-height: var(--tap-target); border-radius: var(--radius-full); border: 2px solid var(--color-primary); color: var(--color-primary); font-weight: 600; background: transparent; }
.copy-btn:hover { background: var(--color-primary); color: #fff; }
.checkout-btn { background: var(--color-whatsapp); color: #fff; font-weight: 700; font-size: 1.05rem; padding: 0.85rem; min-height: var(--tap-target); border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; gap: 0.5rem; }
.checkout-btn:hover { background: var(--color-whatsapp-dark); }
.checkout-btn svg { width: 20px; height: 20px; fill: #fff; }

/* ADD-ON MODAL */
.addon-modal { position: fixed; inset: 0; z-index: 1400; display: none; align-items: center; justify-content: center; padding: var(--space-sm); background: rgba(0,0,0,.55); }
.addon-modal.open { display: flex; }
.addon-content { background: var(--color-bg-card); border-radius: var(--radius-md); max-width: 420px; width: 100%; max-height: 80vh; display: flex; flex-direction: column; box-shadow: var(--shadow-xl); }
.addon-header { display: flex; align-items: center; justify-content: space-between; padding: var(--space-sm) var(--space-md); border-bottom: 1px solid rgba(0,0,0,.08); }
.addon-header h4 { font-size: 1.05rem; color: var(--color-primary-dark); }
.addon-header small { display: block; color: var(--color-text-light); font-weight: 400; }
.addon-list { overflow-y: auto; padding: var(--space-sm) var(--space-md); display: grid; gap: 0.25rem; }
.addon-row { display: flex; align-items: center; gap: 0.6rem; padding: 0.5rem 0.25rem; min-height: var(--tap-target); border-radius: var(--radius-sm); cursor: pointer; }
.addon-row:hover { background: var(--color-bg); }
.addon-row input { width: 20px; height: 20px; accent-color: var(--color-primary); }
.addon-row .addon-name { flex: 1; font-size: 0.95rem; }
.addon-row .addon-price { font-weight: 600; font-size: 0.9rem; color: var(--color-text-light); }
.addon-footer { padding: var(--space-sm) var(--space-md); border-top: 1px solid rgba(0,0,0,.08); display: grid; gap: 0.5rem; }
.addon-total { display: flex; justify-content: space-between; font-weight: 700; }
.addon-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; }
.cancel-btn { padding: 0.65rem 1rem; min-height: var(--tap-target); border-radius: var(--radius-full); border: 2px solid rgba(0,0,0,.15); color: var(--color-text-light); font-weight: 600; }
.confirm-btn { padding: 0.65rem 1rem; min-height: var(--tap-target); border-radius: var(--radius-full); background: var(--color-primary); color: #fff; font-weight: 700; }
.confirm-btn:hover { background: var(--color-primary-dark); }

.toast { position: fixed; bottom: 90px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--color-bg-dark); color: #fff; padding: 0.6rem 1.2rem; border-radius: var(--radius-full); font-size: 0.9rem; opacity: 0; pointer-events: none; transition: all .3s ease; z-index: 1500; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* STICKY WHATSAPP */
.sticky-wa { position: fixed; bottom: 24px; right: 24px; z-index: 1100; }
.sticky-wa-btn { width: var(--wa-button-size); height: var(--wa-button-size); border-radius: 50%; background: var(--color-whatsapp); display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
.sticky-wa-btn:hover { background: var(--color-whatsapp-dark); }
.sticky-wa-btn svg { width: 32px; height: 32px; fill: white; }

.loading-banner, .offline-banner { text-align: center; font-size: 0.85rem; padding: 0.5rem; color: var(--color-text-light); }
.offline-banner { background: var(--color-bg-alt); color: var(--color-accent); }
.offline-banner[hidden], .loading-banner[hidden] { display: none; }

@media (min-width: 768px) {
  .container { padding: 0 var(--space-md); }
}