/* Trang /privacy và /support của AFARCO Aqua (site/public). Giao diện "Mực nước v2":
   token từ customer/design/tokens.json, font Be Vietnam Pro + Red Hat Display (logo) tự host,
   logo AFARCO vẽ bằng SVG như customer/web/src/design/Afarco.tsx. Không gọi dịch vụ bên ngoài. */

@font-face { font-family: "Be Vietnam Pro"; font-style: normal; font-weight: 400; font-display: swap;
  src: url(fonts/be-vietnam-pro-vietnamese-400-normal.woff2) format("woff2");
  unicode-range: U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB; }
@font-face { font-family: "Be Vietnam Pro"; font-style: normal; font-weight: 400; font-display: swap;
  src: url(fonts/be-vietnam-pro-latin-400-normal.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+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: "Be Vietnam Pro"; font-style: normal; font-weight: 600; font-display: swap;
  src: url(fonts/be-vietnam-pro-vietnamese-600-normal.woff2) format("woff2");
  unicode-range: U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB; }
@font-face { font-family: "Be Vietnam Pro"; font-style: normal; font-weight: 600; font-display: swap;
  src: url(fonts/be-vietnam-pro-latin-600-normal.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+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: "Be Vietnam Pro"; font-style: normal; font-weight: 800; font-display: swap;
  src: url(fonts/be-vietnam-pro-vietnamese-800-normal.woff2) format("woff2");
  unicode-range: U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB; }
@font-face { font-family: "Be Vietnam Pro"; font-style: normal; font-weight: 800; font-display: swap;
  src: url(fonts/be-vietnam-pro-latin-800-normal.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+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: "Red Hat Display"; font-style: normal; font-weight: 600; font-display: swap;
  src: url(fonts/red-hat-display-latin-600-normal.woff2) format("woff2"); }
@font-face { font-family: "Red Hat Display"; font-style: normal; font-weight: 900; font-display: swap;
  src: url(fonts/red-hat-display-latin-900-normal.woff2) format("woff2"); }

:root {
  --navy: #0B2E4F; --night-top: #134774; --ink: #0B2E4F; --ink-2: #344E66; --muted: #4A6178;
  --primary: #0369A1; --primary-soft: #E6F1F8; --primary-border: #B9D9EE; --primary-tint: #F4F9FC;
  --canvas: #E9EFF4; --surface: #FFFFFF; --line: #D9E4EE; --line-soft: #EEF3F7;
  --info-soft: #DCEBF5; --info-text: #0B4A75; --warn-soft: #FFF4E0; --warn-text: #7A4A00;
  --ripple: #7DD3FC; --water: #CFE6F5; --water-back: #B3D8EF;
  --on-navy: #FFFFFF; --on-navy-2: #D3E3F0; --on-navy-muted: #B7CDE0; --on-navy-overline: #8FB4D3;
  --radius-card: 20px; --radius-card-lg: 22px; --radius-box: 14px; --radius-control: 12px;
  --shadow-card: 0 10px 40px rgb(11 46 79 / 0.08);
  --font: "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --font-wordmark: "Red Hat Display", var(--font);
  --page: 880px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--canvas); color: var(--ink-2);
  font: 400 16px/1.7 var(--font); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
a { color: var(--primary); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--ripple); outline-offset: 3px; border-radius: 6px; }
strong { color: var(--ink); font-weight: 600; }
.skip { position: absolute; left: 16px; top: -48px; z-index: 10; padding: 10px 16px; border-radius: var(--radius-control);
  background: var(--surface); color: var(--ink); font-weight: 600; text-decoration: none; }
.skip:focus { top: 12px; }
.icon { width: 22px; height: 22px; flex: none; }

/* ── Ao đêm: tiêu đề trên nền navy, gợn sóng như màn đăng nhập ── */
.hero {
  position: relative; overflow: hidden; color: var(--on-navy);
  background: radial-gradient(120% 90% at 78% 0%, var(--night-top) 0%, var(--navy) 68%);
  padding: 22px 16px 104px;
}
.ripples { position: absolute; right: -140px; top: -170px; width: 560px; height: 560px; pointer-events: none; }
.ripples span { position: absolute; inset: 0; border-radius: 50%; border: 2px solid rgb(125 211 252 / 0.4);
  animation: ripple 5.4s ease-out infinite; }
.ripples span:nth-child(2) { animation-delay: 1.8s; }
.ripples span:nth-child(3) { animation-delay: 3.6s; }
@keyframes ripple { from { transform: scale(.4); opacity: .55; } to { transform: scale(1.6); opacity: 0; } }
.hero-inner { position: relative; max-width: var(--page); margin: 0 auto; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--on-navy); text-decoration: none;
  font-weight: 800; font-size: 20px; letter-spacing: -0.01em; }
.brand svg { width: 44px; height: 44px; }
.switch { display: inline-flex; gap: 4px; padding: 4px; border-radius: 999px; background: rgb(255 255 255 / 0.1); }
.switch a { color: var(--on-navy-2); text-decoration: none; font-size: 14px; font-weight: 600; padding: 6px 14px; border-radius: 999px; }
.switch a:hover { color: var(--on-navy); background: rgb(255 255 255 / 0.08); }
.switch a[aria-current="page"] { background: var(--on-navy); color: var(--navy); }
.eyebrow { margin: 52px 0 6px; color: var(--on-navy-overline); font-size: 13px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; }
.hero h1 { margin: 0; color: var(--on-navy); font-weight: 800; font-size: clamp(32px, 6vw, 46px); line-height: 1.15; letter-spacing: -0.025em; }
.lede { margin: 12px 0 0; max-width: 620px; color: var(--on-navy-2); font-size: 17px; line-height: 1.6; }
.lang { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.lang a { display: inline-flex; align-items: center; min-height: 40px; padding: 0 16px; border-radius: 999px;
  border: 1px solid rgb(255 255 255 / 0.28); color: var(--on-navy); text-decoration: none; font-weight: 600; font-size: 15px; }
.lang a:hover { background: rgb(255 255 255 / 0.1); }
/* Mép nước: hai lớp sóng trôi chậm, lớp trước cùng màu nền trang. */
.waves { position: absolute; left: 0; right: 0; bottom: -1px; height: 72px; pointer-events: none; }
.waves svg { position: absolute; bottom: 0; left: 0; width: 200%; height: 100%; }
.waves .back { fill: var(--water-back); opacity: .35; animation: drift 14s linear infinite; }
.waves .front { fill: var(--canvas); animation: drift 22s linear infinite reverse; }
@keyframes drift { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ── Nội dung ── */
main { max-width: var(--page); margin: -56px auto 0; padding: 0 16px 24px; position: relative; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card-lg);
  box-shadow: var(--shadow-card); padding: 28px 22px; margin: 0 0 20px; }
@media (min-width: 720px) { .card { padding: 40px 48px; } }
.card-head { display: flex; align-items: center; gap: 10px; margin: 0 0 6px; }
.flag { display: inline-flex; align-items: center; height: 28px; padding: 0 12px; border-radius: 999px;
  background: var(--primary-soft); color: var(--info-text); font-size: 13px; font-weight: 600; letter-spacing: .02em; }
.meta { color: var(--muted); font-size: 14px; }
h2 { color: var(--ink); font-weight: 800; font-size: 22px; line-height: 1.3; letter-spacing: -0.01em; margin: 40px 0 10px; scroll-margin-top: 20px; }
.card > h2:first-of-type, .card-head + h2 { margin-top: 18px; }
h2 .num { display: inline-flex; align-items: center; justify-content: center; min-width: 32px; height: 32px; margin-right: 10px;
  border-radius: 10px; background: var(--primary-soft); color: var(--primary); font-size: 16px; vertical-align: 2px; }
h3 { color: var(--ink); font-weight: 600; font-size: 17px; margin: 22px 0 6px; }
p { margin: 0 0 12px; }
ul, ol { margin: 0 0 14px; padding-left: 0; list-style: none; }
li { position: relative; padding-left: 24px; margin: 8px 0; }
ul > li::before { content: ""; position: absolute; left: 4px; top: .72em; width: 8px; height: 8px; border-radius: 50%; background: var(--ripple); box-shadow: 0 0 0 3px var(--primary-soft); }
ol { counter-reset: step; }
ol > li { counter-increment: step; padding-left: 40px; }
ol > li::before { content: counter(step); position: absolute; left: 0; top: .1em; width: 28px; height: 28px; border-radius: 9px;
  background: var(--navy); color: var(--on-navy); font-size: 14px; font-weight: 800; line-height: 28px; text-align: center; }
.note { display: flex; gap: 12px; padding: 14px 16px; border-radius: var(--radius-box); background: var(--info-soft); color: var(--info-text); margin: 16px 0; }
.note.warn { background: var(--warn-soft); color: var(--warn-text); }
.note p { margin: 0; }

/* Mục lục (privacy) */
.toc { margin: 18px 0 6px; padding: 18px 20px; border-radius: var(--radius-box); background: var(--canvas); }
.toc p { margin: 0 0 8px; color: var(--ink); font-weight: 800; font-size: 15px; }
.toc ol { display: grid; grid-template-columns: 1fr; gap: 2px 24px; margin: 0; counter-reset: none; }
@media (min-width: 640px) { .toc ol { grid-template-columns: 1fr 1fr; } }
.toc li { padding: 0; margin: 0; counter-increment: none; }
.toc li::before { content: none; }
.toc a { display: block; padding: 5px 0; color: var(--ink-2); text-decoration: none; font-size: 15px; }
.toc a:hover { color: var(--primary); }
.toc a span { display: inline-block; min-width: 28px; color: var(--primary); font-weight: 600; }

/* Liên hệ */
.contact { display: grid; gap: 12px; margin: 16px 0; }
@media (min-width: 560px) { .contact { grid-template-columns: 1fr 1fr; } .contact .wide { grid-column: 1 / -1; } }
.contact-item { display: flex; gap: 12px; align-items: flex-start; padding: 16px; border-radius: var(--radius-box);
  border: 1px solid var(--line); background: var(--primary-tint); color: var(--ink-2); text-decoration: none; min-width: 0; }
a.contact-item:hover { border-color: var(--primary-border); background: var(--primary-soft); }
.contact-item .icon-box { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; flex: none;
  border-radius: var(--radius-control); background: var(--navy); color: var(--on-navy); }
.contact-item .label { display: block; color: var(--muted); font-size: 13px; line-height: 1.4; }
.contact-item .value { display: block; color: var(--ink); font-weight: 600; font-size: 15px; line-height: 1.45; overflow-wrap: break-word; }

/* Câu hỏi thường gặp (support) */
.faq { display: grid; gap: 10px; margin: 14px 0 6px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius-box); background: var(--surface); }
.faq details[open] { border-color: var(--primary-border); background: var(--primary-tint); }
.faq summary { display: flex; align-items: center; gap: 12px; padding: 14px 16px; cursor: pointer; list-style: none;
  color: var(--ink); font-weight: 600; font-size: 16px; line-height: 1.45; border-radius: var(--radius-box); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon-box { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; flex: none;
  border-radius: 10px; background: var(--primary-soft); color: var(--primary); }
.faq summary .q { flex: 1; }
.faq summary .chev { color: var(--muted); transition: transform .2s ease; }
.faq details[open] summary .chev { transform: rotate(180deg); }
.faq .a { padding: 0 16px 6px 64px; }
@media (max-width: 480px) { .faq .a { padding-left: 16px; } }

/* ── Chân trang ── */
footer { background: var(--navy); color: var(--on-navy-muted); margin-top: 28px; }
.foot { max-width: var(--page); margin: 0 auto; padding: 28px 16px 36px; display: flex; flex-wrap: wrap; gap: 18px 28px;
  align-items: center; justify-content: space-between; font-size: 14px; }
.lockup { display: inline-flex; align-items: center; gap: 12px; }
.lockup svg { width: 40px; height: 40px; }
.wordmark { display: inline-flex; flex-direction: column; line-height: 1; }
.wordmark b { font-family: var(--font-wordmark); font-weight: 900; font-size: 19px; letter-spacing: -0.015em; color: var(--on-navy); }
.wordmark i { font-family: var(--font-wordmark); font-style: normal; font-weight: 600; font-size: 6px; letter-spacing: .66em; color: var(--ripple); margin-top: 3px; }
.lockup .sub { color: var(--on-navy-overline); font-weight: 600; letter-spacing: .14em; font-size: 12px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.foot a { color: var(--on-navy-2); text-decoration: none; font-weight: 600; }
.foot a:hover { color: var(--on-navy); text-decoration: underline; }
.copy { flex-basis: 100%; color: var(--on-navy-overline); font-size: 13px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ripples span, .waves .back, .waves .front { animation: none; }
  .ripples span:nth-child(1) { transform: scale(.75); opacity: .45; }
  .ripples span:nth-child(2) { transform: scale(1.05); opacity: .3; }
  .ripples span:nth-child(3) { transform: scale(1.35); opacity: .16; }
  .faq summary .chev { transition: none; }
}
@media print {
  .hero { background: none; color: var(--ink); padding: 0 0 12px; }
  .hero h1, .brand, .lede { color: var(--ink); }
  .ripples, .waves, .switch, .lang, .skip, footer nav { display: none; }
  main { margin: 0; }
  .card { box-shadow: none; border: 0; padding: 0; }
  footer { background: none; color: var(--ink); }
}