/* =====================================================================================
   GHDNN Express — UI layer v2.0 (theme v1.40.0)
   Hệ thiết kế theo chuẩn Untitled UI: thang màu gray/brand, typography Inter, spacing 4px,
   shadow xs→xl, radius 8/10/12/16, featured icon, card, button, badge.
   - Mọi class có tiền tố "u-" để KHÔNG va chạm với assets/css/style.css (CSS cũ, ~3.900 dòng,
     vẫn tải bất đồng bộ cho các trang con/tiện ích).
   - File này tải ĐỒNG BỘ (chặn hiển thị) trên mọi trang vì chứa header/footer - giữ gọn.
   - Màu thương hiệu lấy từ --red / --red-dark / --bg-brand do inc/brand-bridge.php in ra
     (mặc định #D92D20 = đúng màu "Error 600" của Untitled UI).
   - Animation chỉ dùng transform/opacity, luôn có nhánh prefers-reduced-motion.
   ===================================================================================== */

/* ---- Font (khai báo lại ở đây để trang không phải chờ style.css bất đồng bộ mới có font) ---- */
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/inter-400.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/inter-400-vn.woff2') format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+1EA0-1EF9,U+20AB;}
@font-face{font-family:'Inter';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/inter-500.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'Inter';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/inter-500-vn.woff2') format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+1EA0-1EF9,U+20AB;}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/inter-600.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/inter-600-vn.woff2') format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+1EA0-1EF9,U+20AB;}
@font-face{font-family:'Inter';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/inter-700.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'Inter';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/inter-700-vn.woff2') format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+1EA0-1EF9,U+20AB;}

/* Font dự phòng có số đo khớp Inter (size-adjust/ascent/descent) - khi Inter tải xong thay vào, chữ gần
   như không xê dịch → giảm CLS do đổi font. */
@font-face{font-family:'Inter Fallback';src:local('Arial'),local('Helvetica'),local('Liberation Sans');size-adjust:107.06%;ascent-override:90.49%;descent-override:22.56%;line-gap-override:0%;}

/* ---- Tokens ---- */
:root{
  --u-gray-25:#FCFCFD; --u-gray-50:#F9FAFB; --u-gray-100:#F2F4F7; --u-gray-200:#EAECF0; --u-gray-300:#D0D5DD;
  --u-gray-400:#98A2B3; --u-gray-500:#667085; --u-gray-600:#475467; --u-gray-700:#344054; --u-gray-800:#1D2939;
  --u-gray-900:#101828; --u-gray-950:#0C111D;

  --u-brand-600: var(--red, #D92D20);
  --u-brand-700: var(--red-dark, #B42318);
  --u-brand-25:  color-mix(in srgb, var(--u-brand-600) 3%, #fff);
  --u-brand-50:  color-mix(in srgb, var(--u-brand-600) 7%, #fff);
  --u-brand-100: color-mix(in srgb, var(--u-brand-600) 14%, #fff);
  --u-brand-200: color-mix(in srgb, var(--u-brand-600) 26%, #fff);
  --u-brand-300: color-mix(in srgb, var(--u-brand-600) 45%, #fff);
  --u-accent:    #FFC107;
  --u-success-50:#ECFDF3; --u-success-600:#079455; --u-success-700:#067647;
  --u-warning-50:#FFFAEB; --u-warning-700:#B54708;

  /* Semantic */
  --u-bg:            #FFFFFF;
  --u-bg-subtle:     var(--u-gray-50);
  --u-bg-muted:      var(--u-gray-100);
  --u-surface:       #FFFFFF;
  --u-border:        var(--u-gray-200);
  --u-border-strong: var(--u-gray-300);
  --u-text:          var(--u-gray-900);
  --u-text-2:        var(--u-gray-600);
  --u-text-3:        var(--u-gray-500);
  --u-text-brand:    var(--u-brand-700);
  --u-btn-brand:     var(--bg-brand, var(--u-brand-600));
  --u-btn-brand-hover: var(--bg-brand-hover, var(--u-brand-700));
  --u-ring:          0 0 0 4px var(--u-brand-100);

  --u-shadow-xs: 0 1px 2px rgba(16,24,40,.05);
  --u-shadow-sm: 0 1px 3px rgba(16,24,40,.1), 0 1px 2px rgba(16,24,40,.06);
  --u-shadow-md: 0 4px 8px -2px rgba(16,24,40,.1), 0 2px 4px -2px rgba(16,24,40,.06);
  --u-shadow-lg: 0 12px 16px -4px rgba(16,24,40,.08), 0 4px 6px -2px rgba(16,24,40,.03);
  --u-shadow-xl: 0 20px 24px -4px rgba(16,24,40,.08), 0 8px 8px -4px rgba(16,24,40,.03);

  --u-r-sm:6px; --u-r-md:8px; --u-r-lg:10px; --u-r-xl:12px; --u-r-2xl:16px; --u-r-3xl:20px; --u-r-full:9999px;
  --u-font: 'Inter', 'Inter Fallback', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --u-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --u-ease: cubic-bezier(.16,1,.3,1);
  --u-header-h: 64px;
}
@media(min-width:1024px){ :root{ --u-header-h:72px; } }
html[data-theme="dark"]{
  --u-bg:#0C111D; --u-bg-subtle:#161B26; --u-bg-muted:#1F242F; --u-surface:#161B26;
  --u-border:#1F242F; --u-border-strong:#333741;
  --u-text:#F5F5F6; --u-text-2:#CECFD2; --u-text-3:#94969C;
  --u-text-brand: var(--red-dark, #FDA29B);
  --u-brand-50: color-mix(in srgb, var(--u-brand-600) 14%, #0C111D);
  --u-brand-100: color-mix(in srgb, var(--u-brand-600) 22%, #0C111D);
  --u-success-50:#053321; --u-success-700:#75E0A7; --u-warning-50:#4E1D09; --u-warning-700:#FEC84B;
  --u-shadow-lg: 0 12px 16px -4px rgba(0,0,0,.5), 0 4px 6px -2px rgba(0,0,0,.3);
  --u-shadow-xl: 0 20px 24px -4px rgba(0,0,0,.55), 0 8px 8px -4px rgba(0,0,0,.35);
}

/* ---- Base (chỉ những gì header/footer/trang chủ cần; trang con vẫn dùng style.css) ---- */
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--u-header-h) + 12px);}
body{margin:0;font-family:var(--u-font);color:var(--u-text);background:var(--u-bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
.u-container{width:100%;max-width:1280px;margin-inline:auto;padding-inline:16px;box-sizing:border-box;}
@media(min-width:768px){ .u-container{padding-inline:32px;} }
.u-sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.u-skip{position:absolute;left:16px;top:-48px;z-index:100;padding:10px 16px;border-radius:var(--u-r-md);background:var(--u-gray-900);color:#fff;font-weight:600;text-decoration:none;transition:top .15s;}
.u-skip:focus{top:12px;}
.u-ico{width:20px;height:20px;flex-shrink:0;}
:where(.u-header,.u-footer,.u-home) *,:where(.u-header,.u-footer,.u-home) *::before,:where(.u-header,.u-footer,.u-home) *::after{box-sizing:border-box;}
:where(.u-header,.u-footer,.u-home) :is(h1,h2,h3,h4,p,ul,ol,dl,dd,figure){margin:0;}
:where(.u-header,.u-footer,.u-home) :is(ul,ol){padding:0;list-style:none;}
:where(.u-header,.u-footer,.u-home) img{max-width:100%;height:auto;display:block;}

/* ---- Buttons (Untitled: primary / secondary-gray / tertiary / link) ---- */
.u-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:10px 16px;border-radius:var(--u-r-md);border:1px solid transparent;font:600 14px/20px var(--u-font);text-decoration:none;white-space:nowrap;cursor:pointer;box-shadow:var(--u-shadow-xs);transition:background-color .15s,border-color .15s,color .15s,box-shadow .15s,transform .15s var(--u-ease);}
.u-btn:active{transform:translateY(1px);}
.u-btn:focus-visible{outline:none;box-shadow:var(--u-shadow-xs),var(--u-ring);}
.u-btn .u-ico{width:20px;height:20px;}
.u-btn--primary{background:var(--u-btn-brand);border-color:var(--u-btn-brand);color:#fff;}
.u-btn--primary:hover{background:var(--u-btn-brand-hover);border-color:var(--u-btn-brand-hover);}
.u-btn--secondary{background:var(--u-surface);border-color:var(--u-border-strong);color:var(--u-gray-700);}
html[data-theme="dark"] .u-btn--secondary{color:var(--u-text-2);}
.u-btn--secondary:hover{background:var(--u-bg-subtle);color:var(--u-text);}
.u-btn--tertiary{background:transparent;box-shadow:none;color:var(--u-text-2);}
.u-btn--tertiary:hover{background:var(--u-bg-subtle);color:var(--u-text);}
.u-btn--white{background:#fff;border-color:#fff;color:var(--u-gray-900);}
.u-btn--white:hover{background:var(--u-gray-50);}
.u-btn--ghost-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.35);color:#fff;box-shadow:none;}
.u-btn--ghost-light:hover{background:rgba(255,255,255,.16);}
.u-btn--lg{min-height:44px;padding:10px 18px;font-size:16px;line-height:24px;}
.u-btn--xl{min-height:48px;padding:12px 20px;font-size:16px;line-height:24px;}
.u-btn--block{width:100%;}
.u-btn .u-arrow{transition:transform .2s var(--u-ease);}
.u-btn:hover .u-arrow{transform:translateX(3px);}
.u-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--u-text-brand);text-decoration:none;}
.u-link .u-ico{width:16px;height:16px;transition:transform .2s var(--u-ease);}
.u-link:hover{text-decoration:underline;text-underline-offset:3px;}
.u-link:hover .u-ico{transform:translateX(3px);}

/* ---- Badges ---- */
.u-badge{display:inline-flex;align-items:center;gap:6px;padding:2px 10px;border-radius:var(--u-r-full);font:500 14px/20px var(--u-font);border:1px solid var(--u-border);background:var(--u-bg-subtle);color:var(--u-gray-700);white-space:nowrap;}
html[data-theme="dark"] .u-badge{color:var(--u-text-2);}
.u-badge--sm{padding:2px 8px;font-size:12px;line-height:18px;}
.u-badge--brand{background:var(--u-brand-50);border-color:var(--u-brand-200);color:var(--u-text-brand);}
html[data-theme="dark"] .u-badge--brand{border-color:var(--u-brand-100);}
.u-badge--success{background:var(--u-success-50);border-color:transparent;color:var(--u-success-700);}
.u-badge__dot{width:6px;height:6px;border-radius:50%;background:currentColor;}

/* ---- Featured icon (Untitled "modern": nền trắng, viền, bóng xs) ---- */
.u-ficon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:var(--u-r-lg);background:var(--u-surface);border:1px solid var(--u-border);box-shadow:var(--u-shadow-xs);color:var(--u-gray-700);flex-shrink:0;transition:color .2s,background-color .2s,border-color .2s,transform .3s var(--u-ease);}
html[data-theme="dark"] .u-ficon{color:var(--u-text-2);}
.u-ficon .u-ico,.u-ficon .sce-ico{width:24px;height:24px;}
.u-ficon--brand{background:var(--u-brand-50);border-color:var(--u-brand-100);color:var(--u-text-brand);box-shadow:none;}
.u-ficon--sm{width:40px;height:40px;border-radius:var(--u-r-md);}
.u-ficon--sm .u-ico,.u-ficon--sm .sce-ico{width:20px;height:20px;}

/* ---- Card ---- */
.u-card{position:relative;display:flex;flex-direction:column;background:var(--u-surface);border:1px solid var(--u-border);border-radius:var(--u-r-xl);box-shadow:var(--u-shadow-xs);color:inherit;text-decoration:none;transition:transform .3s var(--u-ease),box-shadow .3s var(--u-ease),border-color .3s;}
.u-card--hover:hover,.u-card--hover:focus-within{transform:translateY(-4px);box-shadow:var(--u-shadow-lg);border-color:var(--u-border-strong);}
.u-card--hover::before{content:"";position:absolute;inset:-1px -1px auto;height:3px;border-radius:var(--u-r-xl) var(--u-r-xl) 0 0;background:var(--u-brand-600);transform:scaleX(0);transform-origin:left;transition:transform .45s var(--u-ease);}
.u-card--hover:hover::before,.u-card--hover:focus-within::before{transform:scaleX(1);}
.u-card--hover:hover .u-ficon{color:var(--u-text-brand);border-color:var(--u-brand-200);transform:translateY(-2px) rotate(-4deg);}
/* Thẻ có link phủ toàn thẻ (stretched link) - vẫn cho phép link phụ bên trong nổi lên trên. */
.u-stretch::after{content:"";position:absolute;inset:0;z-index:1;border-radius:inherit;}
.u-card .u-above{position:relative;z-index:2;}
.u-stretch:focus-visible{outline:none;}
.u-card:has(.u-stretch:focus-visible){box-shadow:var(--u-shadow-lg),var(--u-ring);}

/* ---- Form controls ---- */
.u-field{display:flex;flex-direction:column;gap:6px;min-width:0;}
.u-label{font:500 14px/20px var(--u-font);color:var(--u-gray-700);}
html[data-theme="dark"] .u-label{color:var(--u-text-2);}
.u-input,.u-select{width:100%;min-height:44px;padding:10px 14px;border:1px solid var(--u-border-strong);border-radius:var(--u-r-md);background:var(--u-surface);color:var(--u-text);font:400 16px/24px var(--u-font);box-shadow:var(--u-shadow-xs);transition:border-color .15s,box-shadow .15s;}
.u-input::placeholder{color:var(--u-text-3);}
.u-input:focus,.u-select:focus{outline:none;border-color:var(--u-brand-300);box-shadow:var(--u-shadow-xs),var(--u-ring);}
.u-input--mono{font-family:var(--u-mono);font-size:15px;letter-spacing:.02em;}
.u-hint{font-size:14px;line-height:20px;color:var(--u-text-3);}
.u-input-icon{position:relative;}
.u-input-icon > .u-ico{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--u-text-3);pointer-events:none;}
.u-input-icon .u-input{padding-left:42px;}

/* =====================================================================================
   HEADER
   ===================================================================================== */
/* backdrop-filter đặt ở ::before (KHÔNG đặt trên chính .u-header): phần tử có backdrop-filter trở thành khung
   định vị cho con "position:fixed" → menu mobile (#uMobileNav, fixed) sẽ bị giới hạn trong chiều cao header. */
.u-header{position:sticky;top:0;z-index:60;border-bottom:1px solid transparent;transition:border-color .2s,box-shadow .2s;}
.u-header::before{content:"";position:absolute;inset:0;z-index:-1;background:color-mix(in srgb, var(--u-bg) 88%, transparent);-webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);}
.u-header.is-scrolled{border-bottom-color:var(--u-border);box-shadow:var(--u-shadow-xs);}
.u-header__bar{display:flex;align-items:center;gap:16px;height:var(--u-header-h);}
.u-logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--u-text);flex-shrink:0;}
.u-logo img{width:32px;height:32px;border-radius:8px;object-fit:contain;}
.u-logo .custom-logo{width:auto;height:32px;}
.u-logo__name{font:700 18px/1 var(--u-font);letter-spacing:-.02em;}
.u-nav{display:none;}
.u-header__actions{display:flex;align-items:center;gap:8px;margin-left:auto;}
.u-icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--u-r-md);border:0;background:transparent;color:var(--u-text-2);cursor:pointer;text-decoration:none;transition:background-color .15s,color .15s;}
.u-icon-btn:hover{background:var(--u-bg-subtle);color:var(--u-text);}
.u-icon-btn:focus-visible{outline:none;box-shadow:var(--u-ring);}
.u-header__login{display:none;}
.u-header__theme{display:none;}
.u-burger .u-ico-close{display:none;}
.u-burger[aria-expanded="true"] .u-ico-open{display:none;}
.u-burger[aria-expanded="true"] .u-ico-close{display:block;}
.u-header__cta .u-cta-long{display:none;}
@media(min-width:420px){ .u-header__cta .u-cta-long{display:inline;} .u-header__cta .u-cta-short{display:none;} }
@media(max-width:359px){ .u-header .u-logo__name{font-size:16px;} .u-header__bar{gap:8px;} .u-header__cta{padding-inline:12px;} }

@media(min-width:1024px){
  .u-nav{display:flex;align-items:center;gap:2px;margin-left:16px;}
  .u-burger{display:none;}
}
@media(min-width:1280px){ .u-header__login,.u-header__theme{display:inline-flex;} }
@media(min-width:1024px) and (max-width:1199px){ .u-header .u-logo__name{display:none;} }

.u-nav__list{display:flex;align-items:center;gap:2px;}
.u-nav__item{position:relative;}
.u-nav__link{display:inline-flex;align-items:center;gap:4px;height:40px;padding:0 10px;border-radius:var(--u-r-md);border:0;background:transparent;font:600 15px/1 var(--u-font);color:var(--u-text-2);text-decoration:none;cursor:pointer;white-space:nowrap;transition:background-color .15s,color .15s;}
.u-nav__link:hover,.u-nav__item.is-open > .u-nav__link{background:var(--u-bg-subtle);color:var(--u-text);}
.u-nav__link[aria-current="page"]{color:var(--u-text);}
.u-nav__link:focus-visible{outline:none;box-shadow:var(--u-ring);}
.u-nav__link .u-chev{width:16px;height:16px;transition:transform .2s var(--u-ease);}
.u-nav__item.is-open > .u-nav__link .u-chev{transform:rotate(180deg);}

/* Dropdown / mega menu */
.u-dropdown{position:absolute;top:calc(100% + 10px);left:-12px;z-index:70;width:min(92vw,620px);padding:8px;background:var(--u-surface);border:1px solid var(--u-border);border-radius:var(--u-r-xl);box-shadow:var(--u-shadow-xl);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .18s ease,transform .25s var(--u-ease),visibility 0s linear .25s;}
.u-dropdown::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px;} /* cầu nối hover */
.u-nav__item.is-open > .u-dropdown{opacity:1;visibility:visible;transform:none;transition:opacity .18s ease,transform .25s var(--u-ease),visibility 0s;}
@media(hover:hover) and (pointer:fine){
  .u-nav__item:hover > .u-dropdown{opacity:1;visibility:visible;transform:none;transition:opacity .18s ease .05s,transform .25s var(--u-ease) .05s,visibility 0s .05s;}
  .u-nav__item:hover > .u-nav__link .u-chev{transform:rotate(180deg);}
}
.u-dropdown--wide{width:min(94vw,760px);}
.u-dropdown__grid{display:grid;grid-template-columns:1fr;gap:2px;}
@media(min-width:1024px){ .u-dropdown__grid{grid-template-columns:1fr 1fr;} }
.u-menu-item{display:flex;gap:14px;align-items:flex-start;padding:12px;border-radius:var(--u-r-md);text-decoration:none;color:var(--u-text);transition:background-color .15s;}
.u-menu-item:hover,.u-menu-item:focus-visible{background:var(--u-bg-subtle);outline:none;}
.u-menu-item:hover .u-ficon{color:var(--u-text-brand);border-color:var(--u-brand-200);}
.u-menu-item__title{display:block;font:600 15px/22px var(--u-font);}
.u-menu-item__desc{display:block;margin-top:2px;font-size:14px;line-height:20px;color:var(--u-text-2);}
.u-dropdown__foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 16px;margin:8px -8px -8px;padding:14px 20px;border-top:1px solid var(--u-border);background:var(--u-bg-subtle);border-radius:0 0 var(--u-r-xl) var(--u-r-xl);font-size:14px;color:var(--u-text-2);}
.u-route-links{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;}
@media(min-width:1024px){ .u-route-links{grid-template-columns:repeat(3,1fr);} }
.u-route-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--u-r-md);color:var(--u-text);text-decoration:none;font-weight:500;font-size:15px;}
.u-route-link:hover{background:var(--u-bg-subtle);}
.u-cc{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:24px;padding:0 6px;border-radius:6px;background:var(--u-brand-50);color:var(--u-text-brand);font:600 11px/1 var(--u-mono);letter-spacing:.04em;}

/* Mobile menu (đổ xuống dưới header) */
.u-mnav{position:fixed;inset:var(--u-header-h) 0 0 0;z-index:59;background:var(--u-bg);overflow-y:auto;-webkit-overflow-scrolling:touch;padding:12px 16px calc(24px + env(safe-area-inset-bottom));border-top:1px solid var(--u-border);animation:uMnavIn .25s var(--u-ease);}
.u-mnav[hidden]{display:none;}
@keyframes uMnavIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:none;}}
@media(min-width:1024px){ .u-mnav{display:none!important;} }
html.u-lock,html.u-lock body{overflow:hidden;}
.u-mnav__list > li{border-bottom:1px solid var(--u-border);}
.u-mnav__link,.u-mnav summary{display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:0 4px;font:600 16px/24px var(--u-font);color:var(--u-text);text-decoration:none;cursor:pointer;list-style:none;}
.u-mnav summary::-webkit-details-marker{display:none;}
.u-mnav__link .u-chev,.u-mnav summary .u-chev{width:20px;height:20px;flex-shrink:0;color:var(--u-text-3);transition:transform .2s var(--u-ease);}
.u-mnav details[open] summary .u-chev{transform:rotate(180deg);}
.u-mnav details > div{padding:0 0 12px;}
.u-mnav .u-menu-item{padding:10px 4px;}
.u-mnav__list .menu-item > a{display:flex;align-items:center;min-height:52px;padding:0 4px;font:600 16px/24px var(--u-font);color:var(--u-text);text-decoration:none;}
.u-mnav__list .sub-menu{list-style:none;margin:0 0 8px;padding:0 0 0 12px;}
.u-mnav__list .sub-menu a{min-height:44px;font-weight:500;color:var(--u-text-2);}
.u-mnav__actions{display:grid;gap:12px;margin-top:20px;}
.u-mnav__meta{display:flex;align-items:center;justify-content:space-between;margin-top:20px;font-size:14px;color:var(--u-text-2);}

/* =====================================================================================
   FOOTER
   ===================================================================================== */
.u-footer{background:var(--u-gray-950);color:var(--u-gray-400);padding:64px 0 32px;font-size:16px;line-height:24px;}
.u-footer a{color:var(--u-gray-300);text-decoration:none;transition:color .15s;}
.u-footer a:hover{color:#fff;}
.u-footer__top{display:grid;gap:48px;}
@media(min-width:1024px){ .u-footer__top{grid-template-columns:minmax(0,1.3fr) minmax(0,3fr);gap:64px;} }
.u-footer__brand .u-logo{color:#fff;}
.u-footer__brand p{margin-top:20px;max-width:36ch;color:var(--u-gray-400);}
.u-footer__legal{margin-top:16px;font-size:14px;line-height:20px;color:var(--u-gray-400);}
.u-footer__legal strong{color:var(--u-gray-300);font-weight:600;}
.u-footer__social{display:flex;gap:8px;margin-top:24px;}
.u-footer__social a{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--u-r-md);border:1px solid var(--u-gray-800);color:var(--u-gray-400);}
.u-footer__social a:hover{color:#fff;border-color:var(--u-gray-600);background:var(--u-gray-900);}
.u-footer__cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 24px;}
@media(min-width:768px){ .u-footer__cols{grid-template-columns:repeat(4,minmax(0,1fr));} }
.u-footer__h{font:600 14px/20px var(--u-font);color:var(--u-gray-400);margin-bottom:16px;}
.u-footer__cols li + li{margin-top:12px;}
.u-footer__cols a{display:inline-flex;align-items:center;min-height:24px;font-weight:500;overflow-wrap:anywhere;word-break:break-word;}
.u-footer__cols li{min-width:0;}
.u-footer__offices{display:grid;gap:16px;margin-top:56px;padding-top:40px;border-top:1px solid var(--u-gray-800);}
@media(min-width:640px){ .u-footer__offices{grid-template-columns:repeat(2,1fr);} }
@media(min-width:1024px){ .u-footer__offices{grid-template-columns:repeat(4,1fr);} }
.u-office{padding:20px;border:1px solid var(--u-gray-800);border-radius:var(--u-r-xl);background:var(--u-gray-900);transition:border-color .2s,transform .3s var(--u-ease);}
.u-office:hover{border-color:var(--u-gray-700);transform:translateY(-2px);}
.u-office__name{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font:600 16px/24px var(--u-font);color:#fff;}
.u-office__tag{padding:0 8px;border-radius:var(--u-r-full);background:rgba(255,193,7,.14);color:var(--u-accent);font-size:12px;line-height:20px;font-weight:600;}
.u-office__addr{margin-top:6px;font-size:14px;line-height:20px;}
.u-office__phone{display:inline-flex!important;align-items:center;gap:6px;margin-top:12px;min-height:32px;font:600 14px/20px var(--u-mono);color:#fff!important;}
.u-office__phone .u-ico{width:16px;height:16px;color:var(--u-gray-400);}
.u-hours__row{display:flex;justify-content:space-between;gap:12px;padding:6px 0;font-size:14px;line-height:20px;border-bottom:1px dashed var(--u-gray-800);}
.u-hours__row:last-of-type{border-bottom:0;}
.u-hours__row strong{color:#fff;font-weight:600;}
.u-hours__note{margin-top:8px;font-size:12px;line-height:18px;color:var(--u-gray-400);}
.u-footer__bottom{display:flex;flex-direction:column;gap:16px;margin-top:48px;padding-top:32px;border-top:1px solid var(--u-gray-800);font-size:14px;line-height:20px;}
@media(min-width:768px){ .u-footer__bottom{flex-direction:row;justify-content:space-between;align-items:center;} }
.u-footer__policies{display:flex;flex-wrap:wrap;gap:8px 20px;}
.u-footer__policies a{display:inline-flex;align-items:center;min-height:24px;color:var(--u-gray-400);}

/* =====================================================================================
   Scroll reveal (data-reveal) - chỉ ẩn khi JS đã chạy (html.u-js), có hẹn giờ dự phòng.
   KHÔNG gắn cho nội dung đầu trang (hero) để không trì hoãn LCP.
   ===================================================================================== */
@media (prefers-reduced-motion: no-preference){
  html.u-js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .6s var(--u-ease),transform .7s var(--u-ease);transition-delay:calc(var(--i,0) * 70ms);}
  html.u-js [data-reveal].is-in{opacity:1;transform:none;}
}
@media (prefers-reduced-motion: reduce){
  .u-card,.u-ficon,.u-dropdown,.u-btn,.u-link .u-ico,.u-office{transition:none!important;}
  .u-card--hover:hover{transform:none;}
  .u-mnav{animation:none;}
}

/* Nút "Về đầu trang" - khai báo ở đây (không chờ style.css bất đồng bộ) để nút luôn nằm ngoài luồng trang
   ngay từ lần vẽ đầu; trước đây nút nằm tạm trong luồng ~27px rồi "nhảy" đi khi style.css tải xong (CLS). */
.back-to-top{position:fixed;right:20px;bottom:20px;z-index:44;width:44px;height:44px;border-radius:50%;border:1px solid var(--u-border);background:var(--u-surface);color:var(--u-text-2);box-shadow:var(--u-shadow-md);display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .2s,transform .2s,color .2s,border-color .2s;}
.back-to-top.show{opacity:1;pointer-events:auto;transform:none;}
.back-to-top:hover{color:var(--u-text-brand);border-color:var(--u-brand-300);}
@media(max-width:859px){ .back-to-top{bottom:76px;right:16px;width:40px;height:40px;} }
/* CSS cũ (style.css, tải sau) đặt letter-spacing cho mọi h3/h4 - cố định ở đây để tiêu đề thẻ không đổi số dòng khi style.css áp vào. */
.u-home h3,.u-home h4,.u-header h3,.u-footer h3,.u-footer h4{letter-spacing:normal;}

/* =====================================================================================
   BẢNG GIÁ CHUẨN (v1.41.0 - inc/price-table.php) - dùng ở trang Tuyến/Đối tác/Dịch vụ và shortcode
   [ghdnn_bang_gia] trong bài viết. Desktop: bảng; mobile: mỗi mốc 1 hàng thẻ gọn.
   ===================================================================================== */
.u-price{margin:32px 0;padding:24px;border:1px solid var(--u-border);border-radius:var(--u-r-2xl);background:var(--u-surface);box-shadow:var(--u-shadow-sm);font-family:var(--u-font);color:var(--u-text);}
@media(max-width:639px){ .u-price{padding:16px;border-radius:var(--u-r-xl);} }
.u-price__head{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:12px 24px;margin-bottom:20px;}
.u-price .u-price__title{margin:0;font:600 24px/32px var(--u-font);letter-spacing:-.01em;color:var(--u-text);scroll-margin-top:calc(var(--u-header-h) + 16px);}
@media(min-width:768px){ .u-price .u-price__title{font-size:28px;line-height:36px;} }
.u-price__sub{margin:6px 0 0;font-size:15px;line-height:22px;color:var(--u-text-2);}
.u-price__meta{display:flex;flex-wrap:wrap;gap:8px;}
.u-price__meta .u-ico{width:14px;height:14px;}
.u-price__tabs{display:flex;gap:8px;overflow-x:auto;padding:4px;margin:0 0 16px;border-radius:var(--u-r-lg);background:var(--u-bg-subtle);border:1px solid var(--u-border);scrollbar-width:none;}
.u-price__tabs::-webkit-scrollbar{display:none;}
.u-price__tab{flex:1 0 auto;display:inline-flex;align-items:center;gap:10px;min-height:52px;padding:8px 14px;border:0;border-radius:var(--u-r-md);background:transparent;color:var(--u-text-2);font:600 15px/18px var(--u-font);cursor:pointer;text-align:left;transition:background-color .2s,color .2s,box-shadow .2s;}
.u-price__tab .u-ico{width:20px;height:20px;}
.u-price__tab small{display:block;margin-top:2px;font-size:12.5px;font-weight:500;color:var(--u-text-3);}
.u-price__tab[aria-selected="true"]{background:var(--u-surface);color:var(--u-text);box-shadow:var(--u-shadow-sm);}
.u-price__tab[aria-selected="true"] .u-ico{color:var(--u-text-brand);}
.u-price__tab:focus-visible{outline:none;box-shadow:var(--u-ring);}
.u-price__panel[hidden]{display:none;}
@media (prefers-reduced-motion: no-preference){ .u-price__panel{animation:uPriceIn .3s var(--u-ease);} }
@keyframes uPriceIn{from{opacity:0;transform:translateY(4px);}to{opacity:1;transform:none;}}
.u-price__facts{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;margin-bottom:12px;font-size:14px;line-height:20px;color:var(--u-text-2);}
.u-price__facts > span{display:inline-flex;align-items:center;gap:6px;}
.u-price__facts .u-ico{width:16px;height:16px;color:var(--u-text-3);}
.u-price__facts strong{color:var(--u-text);font-weight:600;}
.u-price__facts .u-link{margin-left:auto;}
.u-price__table{border:1px solid var(--u-border);border-radius:var(--u-r-xl);overflow:hidden;}
.u-price__row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr) auto;align-items:center;gap:8px 16px;padding:12px 16px;border-top:1px solid var(--u-border);font-size:15px;line-height:22px;transition:background-color .15s;}
.u-price__row:has(.u-price__t){grid-template-columns:minmax(0,1fr) minmax(0,1.1fr) minmax(0,1fr) auto;}
.u-price__row[hidden]{display:none;}
.u-price__row:first-child{border-top:0;}
.u-price__row:not(.u-price__row--head):hover{background:var(--u-bg-subtle);}
.u-price__row--head{background:var(--u-bg-subtle);font:500 12px/18px var(--u-font);color:var(--u-text-3);text-transform:uppercase;letter-spacing:.04em;padding-block:10px;}
.u-price__w{font-weight:500;color:var(--u-text);font-variant-numeric:tabular-nums;}
.u-price__p{font-weight:600;color:var(--u-text);font-variant-numeric:tabular-nums;}
.u-price__p small{display:block;font-size:12px;font-weight:400;color:var(--u-text-3);}
.u-price__t{font-size:14px;color:var(--u-text-2);}
.u-price__a{justify-self:end;}
.u-btn--sm{min-height:36px;padding:8px 14px;font-size:14px;line-height:20px;}
@media(max-width:559px){
  .u-price__row,.u-price__row:has(.u-price__t){grid-template-columns:minmax(0,1fr) auto;padding:12px;}
  .u-price__row--head{display:none;}
  .u-price__p{grid-column:1;}
  .u-price__a{grid-column:2;grid-row:1 / span 3;align-self:center;}
  .u-price__w{font-size:14px;color:var(--u-text-2);}
}
.u-price__more{display:flex;margin:12px auto 0;}
.u-price__more .u-ico{width:16px;height:16px;transition:transform .2s;}
.u-price__more[aria-expanded="true"] .u-ico{transform:rotate(180deg);}
.u-price__notes{margin-top:20px;border-top:1px dashed var(--u-border);padding-top:16px;font-size:14px;line-height:20px;color:var(--u-text-2);}
.u-price__notes summary{display:flex;align-items:center;gap:8px;cursor:pointer;font-weight:600;color:var(--u-text);list-style:none;min-height:32px;}
.u-price__notes summary::-webkit-details-marker{display:none;}
.u-price__notes summary .u-ico{width:18px;height:18px;color:var(--u-success-600);}
.u-price__notes ul{margin:10px 0 0;padding-left:20px;list-style:disc;}
.u-price__notes li + li{margin-top:6px;}
.u-price--empty p{margin:8px 0 16px;color:var(--u-text-2);}

/* =====================================================================================
   KHỐI "TÌM NHANH THEO NHU CẦU" (v1.41.0 - inc/keyword-cluster.php)
   ===================================================================================== */
.u-kw-cluster{margin:48px 0;padding:24px;border-radius:var(--u-r-2xl);background:var(--u-bg-subtle);border:1px solid var(--u-border);}
.u-kw-intro{margin:4px 0 16px;font-size:15px;color:var(--u-text-2);}
.u-kw-group + .u-kw-group{margin-top:16px;}
.u-kw-group h3{margin:0 0 10px;font:600 14px/20px var(--u-font);letter-spacing:normal;color:var(--u-text-3);text-transform:uppercase;}
.u-kw-group ul{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;}
.u-kw{display:inline-flex;align-items:center;min-height:32px;padding:4px 12px;border-radius:var(--u-r-full);border:1px solid var(--u-border);background:var(--u-surface);font:500 14px/20px var(--u-font);color:var(--u-gray-700);text-decoration:none;transition:border-color .15s,color .15s,background-color .15s,transform .2s var(--u-ease);}
html[data-theme="dark"] .u-kw{color:var(--u-text-2);}
.u-kw:hover{border-color:var(--u-brand-200);color:var(--u-text-brand);background:var(--u-brand-50);transform:translateY(-1px);}
/* v1.41.0 - nút "Tạo đơn" trong bảng giá: ghi đè kiểu cũ .price-row-book-btn (style.css, đỏ trên nền hồng = tương phản 4.27 < 4.5) */
.u-price a.price-row-book-btn{font:600 14px/20px var(--u-font);color:var(--u-text-brand);background:var(--u-surface);border:1px solid var(--u-brand-200);border-radius:var(--u-r-md);padding:7px 14px;box-shadow:var(--u-shadow-xs);}
.u-price a.price-row-book-btn:hover{background:var(--u-btn-brand);border-color:var(--u-btn-brand);color:#fff;}

/* v1.47.0 - Cờ quốc gia tròn (ghdnn_flag): viền mảnh để cờ nền trắng (Nhật, Hàn...) không chìm vào nền. */
.u-flag{display:inline-block;flex:none;border-radius:50%;object-fit:cover;background:var(--u-bg-subtle);box-shadow:0 0 0 1px rgba(16,24,40,.12);}
html[data-theme="dark"] .u-flag{box-shadow:0 0 0 1px rgba(255,255,255,.2);}
.u-flag--neutral{display:inline-flex;align-items:center;justify-content:center;color:var(--u-text-3);}
.u-flag--neutral .u-ico{width:62%;height:62%;}
.u-route-link{gap:12px;padding:10px 12px;transition:background-color .15s;}
.u-route-link .u-flag{transition:transform .25s var(--u-ease);}
.u-route-link:hover .u-flag{transform:scale(1.08);}
.u-route-link__txt{display:flex;flex-direction:column;min-width:0;}
.u-route-link__name{font:500 15px/20px var(--u-font);color:var(--u-text);}
.u-route-link__sub{font:400 12px/18px var(--u-font);color:var(--u-text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.u-route-link:hover .u-route-link__name{color:var(--u-text-brand);}
#ddRoutes{width:min(92vw,800px);}
.u-route-links{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));}
@media(min-width:1024px){ #ddRoutes .u-route-links{grid-template-columns:repeat(3,minmax(0,1fr));} }