/* Website Nam Long v1 (24/10/2026). Hệ thống khoá theo bộ nhận diện v0.3: nam-long/brand/tokens.css.
   Một màu Xanh Nam Long #3853A4, hai sắc nhạt cùng tông, font Saira / Saira Expanded.
   Phê bình: không có ảnh thật, nên trang dựa vào chữ, hoạ tiết lục giác của logo và thẻ "cập nhật lịch tàu" làm điểm nhớ. */

@font-face { font-family: "Saira"; src: url("/assets/fonts/Saira-Regular.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Saira"; src: url("/assets/fonts/Saira-SemiBold.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Saira Expanded"; src: url("/assets/fonts/SairaExpanded-SemiBold.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Saira Expanded"; src: url("/assets/fonts/SairaExpanded-Bold.woff2") format("woff2"); font-weight: 700; font-display: swap; }

:root {
  --nl-xanh: #3853A4;          /* màu duy nhất của thương hiệu */
  --nl-xanh-dam: #2E4590;      /* cùng tông, chỉ dùng cho trạng thái rê chuột / bấm */
  --nl-xanh-mo: #C9D3EE;
  --nl-xanh-nhat: #EEF2FD;
  --nl-nen: #F6F8FD;           /* nền dịu thay trắng tinh */
  --nl-trang: #FFFFFF;
  --nl-trang-mo: rgb(255 255 255 / 0.78);
  --nl-trang-vien: rgb(255 255 255 / 0.22);
  --nl-vien: #DDE3EC;
  --nl-muc: #1E2747;
  --nl-chu-phu: #5B6478;
  --nl-loi: #B42318;
  --nl-bong: 0 28px 56px -32px rgb(56 83 164 / 0.45);
  --nl-bong-dau: 0 8px 24px -18px rgb(30 39 71 / 0.5);

  --f-than: "Saira", Arial, sans-serif;
  --f-tieu-de: "Saira Expanded", "Saira", Arial, sans-serif;

  --r-lon: 18px;
  --r-vua: 12px;
  --r-nho: 10px;
  --khung: 1160px;
  --le: clamp(20px, 4vw, 40px);
  --khoang-sec: clamp(72px, 9vw, 120px);
}

*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: clip; scroll-behavior: smooth; scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; overflow-x: clip;
  background: var(--nl-nen); color: var(--nl-muc);
  font-family: var(--f-than); font-size: 17px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--nl-xanh); text-underline-offset: 3px; }
a:hover { color: var(--nl-xanh-dam); }
:focus-visible { outline: 3px solid var(--nl-xanh); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--f-tieu-de); font-weight: 700; color: var(--nl-xanh); margin: 0; overflow-wrap: break-word; min-width: 0; text-wrap: balance; }
h1 { font-size: clamp(2.2rem, 4.4vw, 3.6rem); line-height: 1.1; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.15; }
h3 { font-size: 1.15rem; line-height: 1.3; }
p { margin: 0; }

.wrap { width: 100%; max-width: var(--khung); margin-inline: auto; padding-inline: var(--le); }
.skip { position: absolute; left: 12px; top: -60px; background: var(--nl-xanh); color: var(--nl-trang); padding: 10px 16px; border-radius: var(--r-nho); z-index: 50; }
.skip:focus { top: 12px; color: var(--nl-trang); }

/* Nút: một kiểu chính, một kiểu viền */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 50px; padding: 0 24px; border-radius: var(--r-nho);
  background: var(--nl-xanh); color: var(--nl-trang); border: 1.5px solid var(--nl-xanh);
  font: 600 1rem/1 var(--f-than); text-decoration: none; cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease, transform .15s ease;
}
.btn:hover { background: var(--nl-xanh-dam); border-color: var(--nl-xanh-dam); color: var(--nl-trang); }
.btn:active { transform: translateY(1px); }
.btn:disabled { background: var(--nl-xanh-mo); border-color: var(--nl-xanh-mo); color: var(--nl-xanh); cursor: progress; }
.btn--ghost { background: transparent; color: var(--nl-xanh); }
.btn--ghost:hover { background: var(--nl-trang); color: var(--nl-xanh-dam); border-color: var(--nl-xanh-dam); }
.btn--sm { min-height: 42px; padding: 0 18px; font-size: .95rem; }
.btn svg { width: 20px; height: 20px; flex: none; }

/* Đầu trang */
.top { position: sticky; top: 0; z-index: 20; background: var(--nl-trang); border-bottom: 1px solid var(--nl-vien); transition: box-shadow .2s ease; }
.top.is-scrolled { box-shadow: var(--nl-bong-dau); }
.top__in { display: flex; align-items: center; gap: 28px; min-height: 76px; }
.brand { flex: none; }
.brand img { height: 46px; width: auto; }
.nav { display: none; gap: 30px; margin-left: auto; }
.nav a { color: var(--nl-muc); text-decoration: none; font-weight: 600; font-size: .98rem; padding: 6px 0; }
.nav a:hover { color: var(--nl-xanh); }
.top__act { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.nav + .top__act { margin-left: 0; }
.lang { font-weight: 600; font-size: .95rem; text-decoration: none; color: var(--nl-chu-phu); padding: 8px 4px; }
.lang:hover { color: var(--nl-xanh); }
@media (min-width: 900px) { .nav { display: flex; } }
@media (max-width: 420px) { .brand img { height: 38px; } .top__act { gap: 10px; } .btn--sm { padding: 0 14px; } }

/* Mở đầu */
.hero { position: relative; background: var(--nl-xanh-nhat); overflow: clip; border-bottom: 1px solid var(--nl-vien); }
.hero__mark { position: absolute; right: -6%; top: 50%; height: 135%; width: auto; transform: translateY(-50%); opacity: .06; pointer-events: none; }
.hero__in { position: relative; display: grid; gap: 48px; padding-block: clamp(48px, 7vw, 96px); align-items: center; }
.hero__text { max-width: 600px; }
.hero .lead { margin-top: 20px; font-size: clamp(1.08rem, 1.6vw, 1.25rem); color: var(--nl-muc); max-width: 34em; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
@media (min-width: 960px) { .hero__in { grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr); } }

/* Thẻ mẫu cập nhật lịch tàu: điểm nhớ của trang */
.update { margin: 0; }
.update__card { background: var(--nl-trang); border: 1px solid var(--nl-vien); border-radius: var(--r-lon); padding: 24px; box-shadow: var(--nl-bong); }
.update__head { display: flex; align-items: center; gap: 12px; }
.update__head img { width: 30px; height: auto; }
.update__head strong { display: block; font-family: var(--f-tieu-de); font-weight: 700; color: var(--nl-xanh); line-height: 1.2; }
.update__head span { display: block; font-size: .9rem; color: var(--nl-chu-phu); }
.tag { margin-left: auto; align-self: flex-start; font-size: .8rem; font-weight: 600; color: var(--nl-xanh); background: var(--nl-xanh-nhat); border: 1px solid var(--nl-xanh-mo); border-radius: 999px; padding: 2px 10px; }
.route { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 14px; margin: 24px 0 20px; }
.route__port { display: flex; flex-direction: column; font-size: .92rem; color: var(--nl-chu-phu); }
.route__port b { font-family: var(--f-tieu-de); font-size: 1.35rem; color: var(--nl-muc); line-height: 1.1; }
.route__port--end { text-align: right; }
.route__line { position: relative; height: 2px; background: repeating-linear-gradient(90deg, var(--nl-xanh-mo) 0 8px, transparent 8px 14px); }
.route__line::before { content: ""; position: absolute; left: 0; top: 0; height: 2px; width: 62%; background: var(--nl-xanh); }
.route__ship { position: absolute; left: 62%; top: 50%; width: 34px; height: 34px; transform: translate(-50%, -50%); background: var(--nl-trang); border: 2px solid var(--nl-xanh); border-radius: 50%; display: grid; place-items: center; color: var(--nl-xanh); }
.route__ship svg { width: 18px; height: 18px; }
.update__rows { margin: 0; display: grid; gap: 0; border-top: 1px solid var(--nl-vien); }
.update__rows div { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--nl-vien); font-size: .95rem; }
.update__rows dt { color: var(--nl-chu-phu); }
.update__rows dd { margin: 0; font-weight: 600; text-align: right; }
.progress { list-style: none; margin: 20px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
.progress li { font-size: .78rem; line-height: 1.3; color: var(--nl-chu-phu); padding-top: 12px; position: relative; }
.progress li::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 4px; border-radius: 4px; background: var(--nl-xanh-mo); }
.progress li.xong::before { background: var(--nl-xanh); }
.progress li.dang { color: var(--nl-xanh); font-weight: 600; }
.progress li.dang::before { background: var(--nl-xanh); }
.update figcaption { margin-top: 14px; font-size: .88rem; color: var(--nl-chu-phu); }

/* Các khối nội dung */
.sec { padding-block: var(--khoang-sec); }
.sec--tint { background: var(--nl-xanh-nhat); border-block: 1px solid var(--nl-vien); position: relative; overflow: clip; }
.sec__head { max-width: 720px; margin-bottom: 44px; }
.sec__head p { margin-top: 14px; font-size: 1.1rem; color: var(--nl-chu-phu); }
.grid3 { display: grid; gap: 20px; }
@media (min-width: 820px) { .grid3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.svc { background: var(--nl-trang); border: 1px solid var(--nl-vien); border-radius: var(--r-lon); padding: 30px 28px; }
.svc__icon { width: 48px; height: 48px; border-radius: var(--r-vua); background: var(--nl-xanh-nhat); color: var(--nl-xanh); display: grid; place-items: center; margin-bottom: 22px; }
.svc__icon svg { width: 26px; height: 26px; }
.svc p { margin-top: 10px; color: var(--nl-chu-phu); }

.split { display: grid; gap: 40px; align-items: start; }
@media (min-width: 900px) { .split { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 72px; } }
.split > div > p { margin-top: 18px; font-size: 1.08rem; }
.sec__mark { position: absolute; left: -8%; bottom: -30%; height: 120%; width: auto; opacity: .05; pointer-events: none; }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; position: relative; }
.checks li { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 14px; background: var(--nl-trang); border: 1px solid var(--nl-vien); border-radius: var(--r-vua); padding: 18px 20px; }
.checks svg { width: 26px; height: 26px; color: var(--nl-xanh); margin-top: 1px; }
.checks strong { color: var(--nl-muc); }

.flow { list-style: none; margin: 0; padding: 0; display: grid; gap: 28px; counter-reset: b; }
@media (min-width: 640px) { .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1000px) { .flow { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.flow li { border-top: 3px solid var(--nl-xanh); padding-top: 22px; }
.flow__n { display: block; font-family: var(--f-tieu-de); font-weight: 700; font-size: 2rem; line-height: 1; color: var(--nl-xanh-mo); margin-bottom: 16px; }
.flow p { margin-top: 10px; color: var(--nl-chu-phu); }

/* Về Nam Long: dải xanh thương hiệu */
.about { background: var(--nl-xanh); color: var(--nl-trang); position: relative; overflow: clip; }
.about__mark { position: absolute; right: -4%; top: 50%; height: 150%; width: auto; transform: translateY(-50%); opacity: .08; pointer-events: none; }
.about h2 { color: var(--nl-trang); }
.slogan { font-family: var(--f-tieu-de); font-weight: 700; font-size: clamp(1.6rem, 3.4vw, 2.75rem); line-height: 1.1; text-transform: uppercase; }
.slogan span { display: block; white-space: nowrap; }
.about .split > div > p { color: var(--nl-trang-mo); }
.about .split > div > p:first-of-type { color: var(--nl-trang); }

/* Báo giá */
.quote { display: grid; gap: 40px; align-items: start; }
@media (min-width: 980px) { .quote { grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 64px; } }
.quote__intro > p { margin-top: 16px; font-size: 1.08rem; }
.contact { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 16px; }
.contact li { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 14px; align-items: start; }
.contact svg { width: 22px; height: 22px; color: var(--nl-xanh); margin-top: 3px; }
.contact a { font-weight: 600; text-decoration: none; overflow-wrap: anywhere; }
.contact a:hover { text-decoration: underline; }
.contact small { display: block; color: var(--nl-chu-phu); font-size: .92rem; }

.form { background: var(--nl-trang); border: 1px solid var(--nl-vien); border-radius: var(--r-lon); padding: clamp(22px, 3.5vw, 36px); box-shadow: var(--nl-bong); }
.fields { display: grid; gap: 18px; }
@media (min-width: 620px) { .fields { grid-template-columns: repeat(2, minmax(0, 1fr)); } .f--full { grid-column: 1 / -1; } }
.f label { display: block; font-weight: 600; font-size: .95rem; margin-bottom: 6px; }
.f label span { color: var(--nl-xanh); }
.f input, .f select, .f textarea {
  width: 100%; font: 400 1rem/1.4 var(--f-than); color: var(--nl-muc);
  background: var(--nl-trang); border: 1px solid var(--nl-vien); border-radius: var(--r-nho);
  padding: 12px 14px; min-height: 48px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.f select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%233853A4' stroke-width='2'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 38px; }
.f textarea { min-height: 96px; resize: vertical; }
.f input:hover, .f select:hover, .f textarea:hover { border-color: var(--nl-xanh-mo); }
.f input:focus, .f select:focus, .f textarea:focus { outline: none; border-color: var(--nl-xanh); box-shadow: 0 0 0 3px var(--nl-xanh-mo); }
.f input::placeholder, .f textarea::placeholder { color: var(--nl-chu-phu); opacity: .75; }
.f input:user-invalid { border-color: var(--nl-loi); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__foot { margin-top: 24px; display: flex; flex-wrap: wrap; align-items: center; gap: 16px 20px; }
.form__note { font-size: .9rem; color: var(--nl-chu-phu); flex: 1 1 220px; }
.cf-turnstile { margin-top: 20px; min-height: 65px; }
.status { margin-top: 18px; padding: 14px 16px; border-radius: var(--r-nho); font-weight: 600; display: none; }
.status.is-ok { display: block; background: var(--nl-xanh-nhat); color: var(--nl-xanh); border: 1px solid var(--nl-xanh-mo); }
.status.is-err { display: block; background: var(--nl-trang); color: var(--nl-loi); border: 1px solid var(--nl-loi); }

/* Chân trang: dải xanh như đáy danh thiếp */
.foot { background: var(--nl-xanh); color: var(--nl-trang-mo); padding-top: 64px; font-size: .95rem; }
.foot a { color: var(--nl-trang); text-decoration: none; }
.foot a:hover { color: var(--nl-trang); text-decoration: underline; }
.foot__in { display: grid; gap: 36px; padding-bottom: 44px; }
@media (min-width: 900px) { .foot__in { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr) minmax(0, .9fr); gap: 56px; } }
.foot__logo { height: 46px; width: auto; }
.foot__slogan { margin-top: 16px; font-family: var(--f-tieu-de); font-weight: 600; color: var(--nl-trang); letter-spacing: .02em; }
.foot__legal strong { display: block; color: var(--nl-trang); font-weight: 600; margin-bottom: 8px; }
.foot p + p { margin-top: 6px; }
.foot__base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-top: 1px solid var(--nl-trang-vien); padding-block: 20px 28px; font-size: .88rem; }

/* 404 */
.lost { min-height: 60vh; display: grid; place-items: center; text-align: center; padding-block: 96px; }
.lost p { margin: 16px 0 28px; color: var(--nl-chu-phu); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0s !important; animation-duration: 0s !important; }
}