/* ==========================================================================
   TÚ LỆ SMART BREAKFAST
   Bảng màu lấy từ chính bao bì hộp 600g: teal #0096A0.
   Tách thành ba biến để mọi cặp màu đạt chuẩn tương phản WCAG AA.
   ========================================================================== */

:root {
  /* --- thương hiệu --- */
  --teal:         #007E88;  /* nền dải và nút, chữ trắng đạt 4.84:1 */
  --teal-bright:  #0096A0;  /* màu đo từ bao bì, dùng cho mảng phẳng và viền */
  --teal-ink:     #00666E;  /* chữ màu teal trên nền sáng, đạt 6.72:1 */
  --teal-wash:    #0096A014; /* nền rất nhạt */
  --teal-line:    #0096A033;

  /* --- nền và mực --- */
  --bg:           #FFFFFF;
  --cream:        #FBF7F0;
  --cream-2:      #F4EFE6;
  --ink:          #14201F;  /* 16.72:1 trên trắng */
  --ink-2:        #4E5B59;
  --ink-3:        #7C8785;
  --line:         #E6E1D6;
  --line-2:       #D3CCBD;

  /* --- màu định danh bốn nhánh nguyên liệu, chỉ dùng ở sơ đồ quy trình --- */
  --n-khoai:      #6B4E9E;
  --n-lac:        #B4462B;
  --n-com:        #4A7A2B;
  --n-chuoi:      #8A6A15;

  /* --- chữ --- */
  --font: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* --- thang chữ, tỉ lệ 1.25 --- */
  --fs-body:  16px;
  --fs-lg:    20px;
  --fs-h4:    25px;
  --fs-h3:    31px;
  --fs-h2:    clamp(30px, 4vw, 39px);
  --fs-h1:    clamp(36px, 6vw, 60px);
  --fs-hero:  clamp(40px, 7.4vw, 76px);
  --fs-stat:  clamp(38px, 5.6vw, 62px);

  /* --- khoảng cách, thang 8 --- */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 16px;  --sp-4: 24px;
  --sp-5: 40px; --sp-6: 64px; --sp-7: 96px;  --sp-8: 128px;
  --container: 1200px;

  /* --- một hệ bo góc: mềm --- */
  --r:      14px;
  --r-sm:   8px;
  --r-pill: 999px;

  --shadow: 0 1px 2px #14201F0A, 0 12px 32px #14201F0F;
  color-scheme: light;
}

/* ========================= nền tảng ========================= */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.025em;
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: var(--fs-h2); letter-spacing: -0.03em; }
h3 { font-size: var(--fs-h4); }
h4 { font-size: var(--fs-lg); }
p  { margin: 0; }

a { color: var(--teal-ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--teal-bright);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.wrap { max-width: var(--container); margin: 0 auto; padding: 0 var(--sp-4); }
@media (min-width: 860px) { .wrap { padding: 0 var(--sp-5); } }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: #fff; padding: 12px 18px; border-radius: 0 0 var(--r-sm) 0;
}
.skip:focus { left: 0; color: #fff; }

/* ========================= tiện ích chữ ========================= */
.eyebrow {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0;
}
.eyebrow.on-teal { color: #FFFFFFB8; }
.lead { font-size: var(--fs-lg); line-height: 1.5; color: var(--ink-2); max-width: 48ch; }
.prose { color: var(--ink-2); max-width: 64ch; display: flex; flex-direction: column; gap: var(--sp-3); }
.prose strong { color: var(--ink); font-weight: 600; }
.prose.tight { gap: var(--sp-2); }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.center { text-align: center; margin-left: auto; margin-right: auto; }

/* ========================= nút ========================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 15px 26px;
  border: 1.5px solid var(--teal);
  border-radius: var(--r-pill);
  background: var(--teal);
  color: #FFFFFF;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;
}
.btn:hover { background: var(--teal-ink); border-color: var(--teal-ink); color: #fff; }
.btn.ghost { background: transparent; color: var(--teal-ink); border-color: var(--line-2); }
.btn.ghost:hover { background: var(--teal-wash); border-color: var(--teal-bright); color: var(--teal-ink); }
.btn.light { background: #FFFFFF; color: var(--teal-ink); border-color: #FFFFFF; }
.btn.light:hover { background: var(--cream); color: var(--teal-ink); border-color: var(--cream); }
.btn.outline-light { background: transparent; color: #FFFFFF; border-color: #FFFFFF66; }
.btn.outline-light:hover { background: #FFFFFF1F; color: #fff; border-color: #FFFFFF; }
.btn.sm { padding: 11px 18px; font-size: 14px; }
.btn.block { width: 100%; }

/* ========================= header ========================= */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: #FFFFFFF2;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .bar {
  height: 68px;
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4);
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); flex: none; }
.logo .mark {
  width: 34px; height: 34px; flex: none;
  border-radius: var(--r-sm);
  background: var(--teal);
  color: #fff;
  font-weight: 800; font-size: 15px; letter-spacing: -0.04em;
  display: grid; place-items: center;
}
.logo .txt { display: grid; line-height: 1.05; }
.logo .txt b { font-size: 16px; font-weight: 800; letter-spacing: -0.02em; }
.logo .txt span { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }

.site-nav { display: none; }
@media (min-width: 940px) {
  .site-nav { display: flex; gap: var(--sp-4); align-items: center; }
}
.site-nav a {
  font-size: 15px; font-weight: 500; color: var(--ink-2); text-decoration: none;
  padding: 6px 0; border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--teal-ink); }
.site-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--teal-bright); font-weight: 600; }

.header-cta { display: none; }
@media (min-width: 560px) { .header-cta { display: inline-flex; } }

.nav-toggle {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; border: 1.5px solid var(--line-2); border-radius: var(--r-pill);
  padding: 9px 15px; font-family: var(--font); font-size: 14px; font-weight: 600; color: var(--ink);
  cursor: pointer;
}
@media (min-width: 940px) { .nav-toggle { display: none; } }
.mobile-nav { border-top: 1px solid var(--line); background: #fff; }
.mobile-nav ul { list-style: none; margin: 0; padding: var(--sp-3) 0 var(--sp-4); display: grid; gap: 2px; }
.mobile-nav a {
  display: block; padding: 12px 0; font-size: 17px; font-weight: 500;
  color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line);
}
.mobile-nav a[aria-current="page"] { color: var(--teal-ink); font-weight: 700; }

/* ========================= dải section ========================= */
.band { padding: var(--sp-7) 0; }
.band.tight { padding: var(--sp-6) 0; }
.band.cream { background: var(--cream); }
.band.cream-2 { background: var(--cream-2); }
.band.teal { background: var(--teal); color: #FFFFFF; }
.band.teal h1, .band.teal h2, .band.teal h3, .band.teal h4 { color: #FFFFFF; }
.band.teal .lead, .band.teal .prose { color: #FFFFFFD9; }
.band.teal .prose strong { color: #FFFFFF; }
.band.teal a { color: #FFFFFF; }
.band.ink { background: var(--ink); color: #F1F4F3; }
.band.ink h2, .band.ink h3, .band.ink h4 { color: #FFFFFF; }
.band.ink .lead, .band.ink .prose { color: #B9C2C0; }
.band.ink .prose strong { color: #FFFFFF; }
.band.ink .eyebrow { color: #6FD3DB; }

.band-head { max-width: 60ch; margin-bottom: var(--sp-5); }
.band-head h2 { margin: var(--sp-3) 0 0; }
.band-head .lead { margin-top: var(--sp-3); }
.band-head.center { text-align: center; }
.band-head.center .lead { margin-left: auto; margin-right: auto; }

/* ========================= lưới chung ========================= */
.two { display: grid; gap: var(--sp-5); }
@media (min-width: 900px) { .two { grid-template-columns: 1fr 1fr; gap: var(--sp-6); align-items: center; } }
.two.top { align-items: start; }
.two.wide-left { }
@media (min-width: 900px) { .two.wide-left { grid-template-columns: 1.25fr 0.75fr; } }
@media (min-width: 900px) { .two.wide-right { grid-template-columns: 0.8fr 1.2fr; } }

.grid-3 { display: grid; gap: var(--sp-4); }
@media (min-width: 720px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.grid-4 { display: grid; gap: var(--sp-4); }
@media (min-width: 600px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

/* ========================= ảnh ========================= */
.pic { border-radius: var(--r); overflow: hidden; background: var(--cream-2); }
.pic img { width: 100%; }
.pic.ratio-4-3 img { aspect-ratio: 4 / 3; object-fit: cover; }
.pic.ratio-3-2 img { aspect-ratio: 3 / 2; object-fit: cover; }
.pic.ratio-1-1 img { aspect-ratio: 1 / 1; object-fit: cover; }
.pic.ratio-2-3 img { aspect-ratio: 2 / 3; object-fit: cover; }
figure { margin: 0; }
figcaption { font-size: 13px; color: var(--ink-3); margin-top: var(--sp-2); }

/* ========================= HERO trang chủ ========================= */
.hero { background: var(--teal); color: #fff; overflow: hidden; }
/* Chỉ đặt padding dọc. Dùng shorthand `padding` ở đây sẽ xoá padding ngang
   mà .wrap đã đặt, vì phần tử này mang cả hai class. */
.hero .inner {
  display: grid; gap: var(--sp-5); align-items: center;
  padding-top: var(--sp-6); padding-bottom: var(--sp-6);
}
@media (min-width: 900px) {
  .hero .inner {
    grid-template-columns: 1.05fr 0.95fr; gap: var(--sp-6);
    padding-top: var(--sp-7); padding-bottom: var(--sp-7);
  }
}
.hero h1 { font-size: var(--fs-hero); color: #fff; margin: var(--sp-3) 0 var(--sp-4); }
.hero .lead { color: #FFFFFFE0; font-size: clamp(17px, 2vw, 21px); }
.hero .cta-row { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-top: var(--sp-5); }
.hero .pic { border-radius: var(--r); box-shadow: 0 24px 60px #00000026; }
.hero-tags { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: var(--sp-5); }
.hero-tags span {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.06em;
  padding: 7px 13px; border-radius: var(--r-pill);
  background: #FFFFFF1F; color: #FFFFFF; border: 1px solid #FFFFFF33;
}

/* ========================= dải số liệu ========================= */
.stats { display: grid; gap: var(--sp-4); }
@media (min-width: 600px) { .stats { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .stats { grid-template-columns: repeat(4, 1fr); gap: var(--sp-5); } }
.stats > div { border-top: 2px solid var(--teal-line); padding-top: var(--sp-3); }
.band.teal .stats > div { border-top-color: #FFFFFF4D; }
.stats .n {
  display: block;
  font-size: var(--fs-stat); font-weight: 800; letter-spacing: -0.05em; line-height: 0.95;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.band.teal .stats .n { color: #fff; }
.stats .n .u { font-size: 0.3em; font-weight: 600; letter-spacing: 0; margin-left: 5px; color: var(--ink-3); }
.band.teal .stats .n .u { color: #FFFFFFB3; }
.stats .k { display: block; font-size: 14.5px; color: var(--ink-2); margin-top: var(--sp-2); }
.band.teal .stats .k { color: #FFFFFFCC; }
.stats .src { display: block; font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); margin-top: 6px; letter-spacing: 0.04em; }
.band.teal .stats .src { color: #FFFFFF8C; }

/* ========================= card ========================= */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: var(--sp-4); display: flex; flex-direction: column; gap: var(--sp-2);
}
.card.on-cream { background: #fff; }
.card h3, .card h4 { letter-spacing: -0.02em; }
.card p { color: var(--ink-2); font-size: 15px; }
.card .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal-ink); }
.card.flat { border: none; background: var(--cream); }
.card-pic { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: #fff; display: flex; flex-direction: column; }
.card-pic .body { padding: var(--sp-4); display: flex; flex-direction: column; gap: var(--sp-2); }
.card-pic img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }

/* ========================= nguyên liệu ========================= */
.ing { display: grid; gap: var(--sp-4); }
@media (min-width: 720px) { .ing { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .ing { grid-template-columns: repeat(4, 1fr); } }
.ing article {
  border: 1px solid var(--line); border-radius: var(--r); padding: var(--sp-4);
  display: flex; flex-direction: column; gap: var(--sp-2); background: #fff;
  border-top: 3px solid var(--c, var(--teal-bright));
}
.ing .name { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; }
.ing .origin { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c, var(--teal-ink)); }
.ing p { font-size: 14.5px; color: var(--ink-2); }
.ing dl { margin: var(--sp-2) 0 0; display: grid; gap: 5px; font-size: 13.5px; }
.ing dl > div { display: flex; justify-content: space-between; gap: var(--sp-2); border-top: 1px dashed var(--line); padding-top: 5px; }
.ing dt { color: var(--ink-3); }
.ing dd { margin: 0; font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ========================= bảng ========================= */
.tw { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: #fff; }
table { border-collapse: collapse; width: 100%; min-width: 420px; font-size: 15px; }
caption {
  text-align: left; padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3);
}
th, td { text-align: left; padding: 12px var(--sp-4); border-bottom: 1px solid var(--line); }
th { font-weight: 500; color: var(--ink-2); }
td.v { font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; font-weight: 500; }
tr:last-child th, tr:last-child td { border-bottom: none; }
.tw + .note { margin-top: var(--sp-3); }
.note { font-size: 13px; color: var(--ink-3); max-width: 68ch; }

/* ========================= sơ đồ quy trình ========================= */
.flow { display: grid; gap: var(--sp-4); }
@media (min-width: 760px) { .flow { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .flow { grid-template-columns: repeat(4, 1fr); } }
.branch {
  border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: #fff;
  display: flex; flex-direction: column;
}
.branch > header {
  background: var(--c); color: #fff; padding: var(--sp-3) var(--sp-4);
  display: flex; flex-direction: column; gap: 2px;
}
.branch > header .t { font-size: 17px; font-weight: 700; letter-spacing: -0.01em; }
.branch > header .s { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: #FFFFFFC4; }
.branch ol { list-style: none; margin: 0; padding: var(--sp-3) var(--sp-4) var(--sp-4); display: grid; gap: 0; counter-reset: st; }
.branch li {
  counter-increment: st;
  display: grid; grid-template-columns: 26px 1fr; gap: var(--sp-3); align-items: baseline;
  padding: 9px 0; border-bottom: 1px dashed var(--line); font-size: 14.5px;
}
.branch li:last-child { border-bottom: none; font-weight: 600; }
.branch li::before {
  content: counter(st);
  font-family: var(--mono); font-size: 11px; font-weight: 500;
  width: 22px; height: 22px; border-radius: var(--r-pill);
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--c) 12%, transparent);
  color: var(--c);
}
.merge {
  margin-top: var(--sp-4);
  border: 1px solid var(--teal-line); border-radius: var(--r); background: var(--teal-wash);
  padding: var(--sp-4); display: grid; gap: var(--sp-4);
}
@media (min-width: 780px) { .merge { grid-template-columns: repeat(2, 1fr); align-items: start; } }
.merge .step { display: grid; gap: var(--sp-2); }
.merge .step .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal-ink); }
.merge .step h4 { letter-spacing: -0.02em; }
.merge .step p { font-size: 14.5px; color: var(--ink-2); }

/* các bước dạng số, dùng khi nội dung thật sự là chuỗi tuần tự */
.steps { display: grid; gap: var(--sp-4); }
@media (min-width: 700px) { .steps { grid-template-columns: repeat(2, 1fr); gap: var(--sp-5); } }
@media (min-width: 1040px) { .steps.of-3 { grid-template-columns: repeat(3, 1fr); } }
.steps > li { list-style: none; border-top: 2px solid var(--teal-bright); padding-top: var(--sp-3); display: grid; gap: var(--sp-2); }
.band.ink .steps > li { border-top-color: #6FD3DB; }
.steps .i { font-family: var(--mono); font-size: 12px; font-weight: 600; color: var(--teal-ink); letter-spacing: 0.06em; }
.band.ink .steps .i { color: #6FD3DB; }
.steps h3, .steps h4 { letter-spacing: -0.02em; }
.steps p { color: var(--ink-2); font-size: 15px; }
.band.ink .steps p { color: #B9C2C0; }
ol.steps, ul.steps { margin: 0; padding: 0; }

/* ========================= thành viên ========================= */
.team { display: grid; gap: var(--sp-4); }
@media (min-width: 560px) { .team { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .team { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1140px) { .team { grid-template-columns: repeat(5, 1fr); gap: var(--sp-3); } }
.team article { display: flex; flex-direction: column; gap: var(--sp-3); }
.team .pic { border-radius: var(--r); }
.team .nm { font-size: 16.5px; font-weight: 700; letter-spacing: -0.02em; }
.team .rl { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--teal-ink); margin-top: 3px; }
.team .sch { font-size: 13px; color: var(--ink-3); margin-top: 4px; }
.team p { font-size: 14px; color: var(--ink-2); margin-top: var(--sp-2); }

/* ========================= khối giá và đặt hàng ========================= */
.buy { display: grid; gap: var(--sp-5); }
@media (min-width: 940px) { .buy { grid-template-columns: 1fr 0.85fr; gap: var(--sp-6); align-items: start; } }
.pricebox {
  border: 1px solid var(--line); border-radius: var(--r); background: #fff;
  padding: var(--sp-5); display: grid; gap: var(--sp-4); box-shadow: var(--shadow);
}
.pricebox .row { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--sp-3); flex-wrap: wrap; }
.pricebox .price { font-family: var(--mono); font-size: 34px; font-weight: 600; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.pricebox .per { font-size: 14px; color: var(--ink-3); }
.pricebox ul { margin: 0; padding: 0; list-style: none; display: grid; gap: var(--sp-2); font-size: 14.5px; color: var(--ink-2); }
.pricebox ul li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; align-items: baseline; }
.pricebox ul li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--teal-bright); margin-top: 7px; }

/* ========================= form ========================= */
.form { display: grid; gap: var(--sp-3); }
.field { display: grid; gap: 6px; }
.field label { font-size: 14px; font-weight: 600; }
.field .hint { font-size: 12.5px; color: var(--ink-3); }
.field input, .field select, .field textarea {
  font-family: var(--font); font-size: 15.5px; color: var(--ink);
  padding: 13px 15px; border: 1.5px solid var(--line-2); border-radius: var(--r-sm);
  background: #fff; width: 100%;
}
.field textarea { min-height: 92px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--teal-bright); outline: none; box-shadow: 0 0 0 3px var(--teal-wash); }
.field.invalid input, .field.invalid select { border-color: #B4462B; }
.field .err { font-size: 12.5px; color: #B4462B; display: none; }
.field.invalid .err { display: block; }
.form-row { display: grid; gap: var(--sp-3); }
@media (min-width: 620px) { .form-row { grid-template-columns: 1fr 1fr; } }
.form-note { font-size: 12.5px; color: var(--ink-3); }
.order-result {
  border: 1px solid var(--teal-line); background: var(--teal-wash); border-radius: var(--r);
  padding: var(--sp-4); display: grid; gap: var(--sp-3);
}
.order-result h4 { letter-spacing: -0.02em; }
.order-result pre {
  font-family: var(--mono); font-size: 13px; line-height: 1.6; margin: 0;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm);
  padding: var(--sp-3); overflow-x: auto; white-space: pre-wrap; color: var(--ink);
}
.order-result .acts { display: flex; flex-wrap: wrap; gap: var(--sp-2); }

/* ========================= liên hệ ========================= */
.contact-list { display: grid; gap: var(--sp-3); }
.contact-list a { font-family: var(--mono); font-size: 17px; font-weight: 500; letter-spacing: -0.01em; text-decoration: none; }
.contact-list a:hover { text-decoration: underline; }
.contact-list .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }

/* ========================= video ========================= */
.video { border-radius: var(--r); overflow: hidden; background: var(--ink); aspect-ratio: 16 / 9; }
.video iframe { width: 100%; height: 100%; border: 0; display: block; }

/* ========================= FAQ ========================= */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; list-style: none; padding: var(--sp-4) 0;
  font-size: 16.5px; font-weight: 600;
  display: flex; justify-content: space-between; align-items: baseline; gap: var(--sp-3);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); font-size: 19px; color: var(--teal-ink); flex: none; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq details > div { padding: 0 0 var(--sp-4); color: var(--ink-2); max-width: 66ch; display: grid; gap: var(--sp-2); font-size: 15px; }

/* ========================= dải CTA ========================= */
.cta-band { text-align: center; display: grid; gap: var(--sp-4); justify-items: center; }
.cta-band h2 { max-width: 24ch; }
.cta-band .row { display: flex; flex-wrap: wrap; gap: var(--sp-3); justify-content: center; }

/* ========================= footer ========================= */
.site-footer { background: var(--cream); border-top: 1px solid var(--line); padding: var(--sp-6) 0 var(--sp-5); }
.fgrid { display: grid; gap: var(--sp-5); }
@media (min-width: 780px) { .fgrid { grid-template-columns: 1.5fr 1fr 1fr; gap: var(--sp-6); } }
.site-footer h4 {
  font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-3); margin-bottom: var(--sp-3);
}
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: 15px; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--teal-ink); text-decoration: underline; }
.site-footer .about p { font-size: 14.5px; color: var(--ink-2); max-width: 42ch; }
.fbot {
  margin-top: var(--sp-5); padding-top: var(--sp-4); border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: var(--sp-2) var(--sp-5); justify-content: space-between;
  font-size: 13px; color: var(--ink-3);
}

/* ========================= khung ảnh còn thiếu =========================
   Dùng khi chưa có ảnh thật. Ghi rõ cần ảnh gì để thay vào, không dựng
   mockup giả bằng khối màu. */
.shot {
  border: 1.5px dashed var(--line-2);
  border-radius: var(--r);
  background: var(--cream);
  padding: var(--sp-4);
  display: flex; flex-direction: column; justify-content: flex-end; gap: 4px;
  min-height: 200px;
  font-family: var(--mono); font-size: 12px; line-height: 1.55; color: var(--ink-3);
}
.shot b { display: block; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); }
.shot.ratio-16-10 { aspect-ratio: 16 / 10; min-height: 0; }
.band.ink .shot { background: #1E2A28; border-color: #34423F; color: #8D9A97; }
.band.ink .shot b { color: #B9C2C0; }

/* ========================= trang phụ: hero nhỏ ========================= */
.page-hero { background: var(--cream); border-bottom: 1px solid var(--line); padding: var(--sp-6) 0; }
.page-hero h1 { margin: var(--sp-3) 0 0; max-width: 22ch; }
.page-hero .lead { margin-top: var(--sp-4); }
.crumb { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.crumb a { color: var(--ink-3); text-decoration: none; }
.crumb a:hover { color: var(--teal-ink); }