/* Từ lò bánh đến thế giới: giấy ấm, mực nâu, vàng lúa mì. Phông Be Vietnam Pro (mặc định) hoặc Lexend, đều thiết kế/hỗ trợ đầy đủ tiếng Việt. */
:root {
  --paper: #f6efe0; --flour: #fffaf0; --ink: #2a2118; --ink2: #5b4c3b; --crust: #7a4a1f; --wheat: #c98a1b; --wheat-d: #9b6a0f;
  --tomato: #b3261e; --river: #3d6b7d; --line: #e0d3b8; --shadow: 0 1px 2px rgba(60, 40, 10, .08), 0 8px 24px rgba(60, 40, 10, .08);
  --ff: "Be Vietnam Pro", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;   /* đổi bằng html[data-font="lexend"] */
  --serif: var(--ff); --display: var(--ff);
  --r: 14px; --w: 1120px; --wn: 760px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html[data-font="lexend"] { --ff: "Lexend", "Be Vietnam Pro", system-ui, sans-serif; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 clamp(16px, .4vw + 14px, 18px)/1.7 var(--serif); }
a { color: var(--crust); text-underline-offset: 3px; } a:hover { color: var(--tomato); }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 1.22; letter-spacing: -.01em; margin: 0 0 .5em; }
h1 { font-size: clamp(30px, 4.4vw, 52px); } h2 { font-size: clamp(22px, 2.3vw, 29px); } h3 { font-size: 18px; }
p { margin: 0 0 1em; }
kbd { font: 500 12px var(--display); border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; background: var(--flour); }
:focus-visible { outline: 3px solid var(--wheat); outline-offset: 2px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; z-index: 100; } .skip:focus { left: 8px; }
#progress { position: fixed; top: 0; left: 0; right: 0; height: 4px; z-index: 60; } #progress i { display: block; height: 100%; width: 0; background: var(--wheat); }

/* khung: thanh trên nằm trong header.css */
.chip { font: 600 12.5px var(--display); text-transform: uppercase; letter-spacing: .04em; background: var(--flour); color: var(--ink); border: 1.5px solid var(--ink); border-radius: 999px; padding: 6px 14px; cursor: pointer; } .chip:hover { background: #fff; }
.wrap { max-width: var(--w); margin: 0 auto; padding: 24px clamp(16px, 4vw, 40px) 48px; } .narrow { max-width: var(--wn); }
.foot { border-top: 1px solid var(--line); padding: 28px clamp(16px, 4vw, 40px); color: var(--ink2); font-size: 16px; text-align: center; } .foot p { margin: 0 auto .4em; max-width: 760px; }
.crumbs { font: 500 13px var(--display); text-transform: uppercase; letter-spacing: .04em; color: var(--ink2); margin-bottom: 18px; } .crumbs a { color: var(--ink2); }
.sec { margin-top: 1.6em; border-bottom: 2px solid var(--line); padding-bottom: .25em; }

/* trang đầu */
.hero { max-width: var(--w); margin: 0 auto; padding: clamp(24px, 6vw, 72px) clamp(16px, 4vw, 40px) 24px; display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(20px, 4vw, 56px); align-items: center; }
.hero h1 { margin-bottom: .1em; } .kicker { font: 500 14px var(--display); text-transform: uppercase; letter-spacing: .08em; color: var(--tomato); margin-bottom: .6em; }
.sub { font: 500 clamp(19px, 2vw, 25px)/1.35 var(--serif); color: var(--crust); margin-bottom: .8em; } .desc { max-width: 46ch; color: var(--ink2); }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 1.2em 0 .6em; }
.btn { display: inline-block; font: 600 14px var(--display); text-transform: uppercase; letter-spacing: .05em; background: var(--ink); color: var(--paper); padding: 12px 22px; border-radius: 6px; text-decoration: none; } .btn:hover { background: var(--crust); color: #fff; }
.btn.ghost { background: transparent; color: var(--ink); border: 2px solid var(--ink); padding: 10px 20px; } .btn.ghost:hover { background: var(--flour); color: var(--ink); } .btn[hidden] { display: none; }
.count { font-size: 16px; color: var(--ink2); }
.hero-pic { margin: 0; } .hero-pic img { border-radius: var(--r); box-shadow: var(--shadow); aspect-ratio: 1 / 1; object-fit: cover; } .hero-pic figcaption { font-size: 14px; font-style: italic; color: var(--ink2); margin-top: 6px; }
.steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 18px 0 0; }
.steps li { background: var(--flour); border: 1px solid var(--line); border-radius: var(--r); padding: 16px; box-shadow: var(--shadow); } .steps b { display: block; font: 600 17px var(--display); text-transform: uppercase; letter-spacing: .04em; color: var(--crust); margin-bottom: 4px; } .steps span { font-size: 16px; color: var(--ink2); line-height: 1.4; display: block; }
.cast { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; margin: 18px 0 0; }
.cast li { border-left: 4px solid var(--wheat); padding: 4px 0 4px 14px; } .cast b { display: block; font: 600 20px var(--display); } .cast i { display: block; color: var(--tomato); font-size: 15px; margin-bottom: 2px; } .cast span { font-size: 16px; color: var(--ink2); line-height: 1.4; display: block; }
.acts { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 18px 0 14px; }
.part-card a { display: block; height: 100%; background: var(--flour); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; text-decoration: none; color: var(--ink); box-shadow: var(--shadow); transition: transform .15s, border-color .15s; } .part-card a:hover { transform: translateY(-2px); border-color: var(--wheat); }
.part-card .pn-num { display: block; font: 500 13px var(--display); text-transform: uppercase; letter-spacing: .1em; color: var(--tomato); } .part-card b { display: block; font: 600 24px/1.15 var(--display); margin: 4px 0 2px; } .part-card i { display: block; color: var(--crust); margin-bottom: 8px; }
.part-card .stat { font-size: 15px; color: var(--ink2); } .bar { display: block; height: 6px; background: var(--line); border-radius: 3px; margin-top: 6px; overflow: hidden; } .bar i { display: block; height: 100%; background: var(--wheat); margin: 0; }
details.all { margin: 10px 0; border: 1px solid var(--line); border-radius: var(--r); background: rgba(255, 250, 240, .6); } details.all summary { cursor: pointer; padding: 12px 16px; font: 500 17px var(--display); text-transform: uppercase; letter-spacing: .04em; } details.all .chapters { padding: 0 8px 8px; }

/* danh sách chương */
.chapters { list-style: none; padding: 0; margin: 12px 0; counter-reset: x; }
.row a { display: grid; grid-template-columns: 44px 1fr 22px; gap: 12px; align-items: center; padding: 12px 10px; text-decoration: none; color: var(--ink); border-bottom: 1px solid var(--line); border-radius: 8px; } .row a:hover { background: var(--flour); }
.row .n { font: 600 22px var(--display); color: var(--wheat-d); text-align: center; } .row .t b { display: block; font: 500 19px/1.2 var(--display); letter-spacing: .01em; } .row .t p { margin: 2px 0 0; font-size: 16px; color: var(--ink2); line-height: 1.35; } .row .muted { font-style: italic; }
.row.soon a { opacity: .6; } .row .done::after { content: ""; } .row.read .done::after { content: "✓"; color: #2e7d32; font-weight: 700; }

/* trang chương */
.chapter { max-width: var(--wn); position: relative; } .ch-head { margin-bottom: 20px; } .ch-head .num { font: 500 15px var(--display); text-transform: uppercase; letter-spacing: .12em; color: var(--tomato); margin-bottom: 6px; }
.ch-head h1 { margin-bottom: .2em; } .hook { font-size: clamp(19px, 2vw, 24px); font-weight: 500; color: var(--crust); line-height: 1.4; margin-bottom: .4em; } .meta { font-size: 15px; color: var(--ink2); }
.toc-btn { position: absolute; right: clamp(16px, 4vw, 40px); top: 18px; }
.prose p { margin-bottom: 1em; } .prose p:last-child { margin-bottom: 0; }
.story { background: linear-gradient(180deg, #fffdf6, var(--flour)); border: 1px solid var(--line); border-left: 6px solid var(--wheat); border-radius: var(--r); padding: clamp(18px, 3vw, 32px); margin: 24px 0 36px; box-shadow: var(--shadow); }
.story-tag { display: inline-block; font: 500 12px var(--display); text-transform: uppercase; letter-spacing: .1em; color: #fff; background: var(--crust); padding: 3px 10px; border-radius: 999px; margin-bottom: 10px; } .story h2 { font-style: normal; margin-bottom: .6em; color: var(--crust); }
.story .prose { font-size: 1.04em; }
.block { margin: 36px 0; } .block .lead { color: var(--ink2); }
.ideas { list-style: none; counter-reset: i; padding: 0; margin: 14px 0; } .ideas li { counter-increment: i; position: relative; padding: 4px 0 18px 56px; } .ideas li::before { content: counter(i); position: absolute; left: 0; top: 2px; width: 40px; height: 40px; border-radius: 50%; background: var(--wheat); color: #fff; display: grid; place-items: center; font: 600 20px var(--display); } .ideas h3 { margin-bottom: .2em; } .ideas p { margin: 0; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 14px 0; } .side { border-radius: var(--r); padding: 18px; border: 1px solid var(--line); background: var(--flour); } .side.l { border-top: 5px solid var(--river); } .side.r { border-top: 5px solid var(--tomato); } .side h3 { margin-bottom: .3em; } .side ul { margin: .5em 0 0; padding-left: 1.1em; color: var(--ink2); font-size: .95em; } .side p { margin-bottom: .4em; }
.note { color: var(--ink2); font-style: italic; }
.cards { display: grid; gap: 14px; margin: 14px 0; grid-template-columns: repeat(3, 1fr); } .cards.n2, .cards.n4 { grid-template-columns: repeat(2, 1fr); } .cards.n1 { grid-template-columns: 1fr; }
.card { background: var(--flour); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; box-shadow: var(--shadow); } .card h3 { color: var(--crust); margin-bottom: .3em; } .card p { margin: 0 0 .6em; font-size: .97em; line-height: 1.5; } .card .ex { padding-top: .6em; border-top: 1px dashed var(--line); color: var(--ink2); margin: 0; } .card .ex b { color: var(--tomato); font-weight: 600; }
.callout { background: #fdf3d9; border: 1px solid #ecd9a3; border-radius: var(--r); padding: 18px 22px; margin: 32px 0; } .callout h3 { color: var(--wheat-d); margin-bottom: .3em; } .callout p { margin: 0 0 .6em; } .callout .aside { font-size: .95em; color: var(--ink2); font-style: italic; border-top: 1px dashed #d9c58f; padding-top: .6em; margin: .6em 0 0; }
.quote { margin: 30px 0; padding: 4px 0 4px 22px; border-left: 4px solid var(--tomato); } .quote p { font-size: 1.25em; font-style: italic; margin-bottom: .4em; } .quote footer { font: 400 15px var(--display); text-transform: uppercase; letter-spacing: .04em; color: var(--ink2); }
.fig { margin: 30px 0; } .fig img { width: 100%; border-radius: var(--r); box-shadow: var(--shadow); max-height: 70vh; object-fit: cover; } .fig figcaption { font-size: 16px; color: var(--ink2); margin-top: 8px; line-height: 1.4; } .fig figcaption small { display: block; font-size: 13px; opacity: .85; margin-top: 2px; } .fig.wide img { max-height: 46vh; }
.remember { background: var(--ink); color: var(--paper); border-radius: var(--r); padding: 22px 26px; margin: 36px 0; } .remember h2 { color: var(--wheat); } .remember ul { margin: 0; padding-left: 1.2em; } .remember li { margin-bottom: .5em; } .remember li::marker { color: var(--wheat); }
.bridge { border-top: 2px solid var(--line); margin-top: 40px; padding-top: 22px; } .bridge h2 { color: var(--tomato); } .bridge .prose { font-size: 1.04em; }
.next-big { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; align-items: center; margin-top: 18px; padding: 18px 22px; border-radius: var(--r); background: var(--wheat); color: var(--ink); text-decoration: none; box-shadow: var(--shadow); } .next-big:hover { background: #e0a22f; color: var(--ink); }
.next-big small { font: 500 14px var(--display); text-transform: uppercase; letter-spacing: .1em; grid-column: 1; } .next-big b { font: 600 clamp(22px, 3vw, 30px)/1.15 var(--display); grid-column: 1; } .next-big .arrow { grid-row: 1 / span 2; grid-column: 2; font-size: 38px; }
.soon-tag { background: var(--ink); color: var(--paper); border-radius: 999px; padding: 1px 8px; font-size: 11px; margin-left: 6px; }
.terms { margin: 40px 0 10px; border-top: 1px solid var(--line); padding-top: 16px; } .terms dt { font: 600 18px var(--display); color: var(--crust); margin-top: .8em; } .terms dd { margin: .1em 0 0; color: var(--ink2); }
.source { font-size: 15px; color: var(--ink2); border-top: 1px solid var(--line); padding-top: 14px; margin-top: 30px; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 34px; } .pn { display: block; padding: 14px 18px; border: 1.5px solid var(--ink); border-radius: var(--r); text-decoration: none; color: var(--ink); } .pn:hover { background: var(--flour); } .pn small { display: block; font: 500 13px var(--display); text-transform: uppercase; letter-spacing: .08em; color: var(--tomato); } .pn b { font: 500 18px var(--display); } .nextlink { text-align: right; grid-column: 2; }
.soon-box { background: var(--flour); border: 2px dashed var(--line); border-radius: var(--r); padding: 28px; text-align: center; margin: 30px 0; }
.lead-prose { font-size: 1.06em; margin: 14px 0 20px; }
.letter { margin-top: 1.4em; color: var(--wheat-d); border-bottom: 2px solid var(--line); } .term { margin: .6em 0; } .term dt { font: 600 18px var(--display); color: var(--crust); } .term dd { margin: .1em 0 0; color: var(--ink2); } .plain { padding-left: 1.2em; } .plain li { margin-bottom: .5em; }

/* mục lục trượt và tìm kiếm */
.toc { position: fixed; inset: 0; z-index: 70; background: rgba(42, 33, 24, .45); } .toc[hidden] { display: none; }
.toc-in { position: absolute; right: 0; top: 0; bottom: 0; width: min(420px, 92vw); background: var(--paper); padding: 22px 18px; overflow: auto; box-shadow: -8px 0 30px rgba(0, 0, 0, .25); }
.toc-close, .modal-close { position: absolute; right: 10px; top: 8px; border: 0; background: none; font-size: 32px; cursor: pointer; color: var(--ink); }
.toc details { border-bottom: 1px solid var(--line); } .toc summary { cursor: pointer; padding: 10px 4px; font: 500 16px var(--display); text-transform: uppercase; letter-spacing: .04em; } .toc summary span { color: var(--tomato); margin-right: 4px; }
.toc ol { list-style: none; padding: 0 0 8px; margin: 0; } .toc li a { display: block; padding: 5px 4px; text-decoration: none; color: var(--ink); font-size: 17px; line-height: 1.3; } .toc li a b { display: inline-block; width: 28px; color: var(--wheat-d); font-family: var(--display); } .toc li.cur a { background: var(--flour); font-weight: 600; border-radius: 6px; } .toc li.soon a { opacity: .55; } .toc li.read a::after { content: " ✓"; color: #2e7d32; }
.modal { position: fixed; inset: 0; z-index: 80; background: rgba(42, 33, 24, .55); display: grid; place-items: start center; padding: 10vh 12px; } .modal[hidden] { display: none; }
.modal-box { position: relative; width: min(640px, 100%); background: var(--paper); border-radius: var(--r); padding: 18px; box-shadow: var(--shadow); }
#search-input { width: calc(100% - 40px); font: 400 22px var(--serif); padding: 10px 14px; border: 2px solid var(--ink); border-radius: 10px; background: #fff; }
#search-results { list-style: none; padding: 0; margin: 12px 0 0; max-height: 52vh; overflow: auto; } #search-results li a { display: block; padding: 10px 8px; text-decoration: none; color: var(--ink); border-bottom: 1px solid var(--line); } #search-results li a:hover, #search-results li a.on { background: var(--flour); } #search-results b { font: 500 18px var(--display); } #search-results small { display: block; color: var(--ink2); font-size: 15px; } #search-results .none { padding: 12px 8px; color: var(--ink2); }

@media (max-width: 900px) { .hero { grid-template-columns: 1fr; } .hero-pic { max-width: 420px; } .steps { grid-template-columns: 1fr 1fr; } .acts { grid-template-columns: 1fr 1fr; } .cards, .cards.n4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .compare, .steps, .acts, .cards, .cards.n2, .cards.n4, .pager { grid-template-columns: 1fr; } .nextlink { grid-column: 1; } .toc-btn { position: static; margin-bottom: 10px; } }
@media print { .top, .toc, .modal, #progress, .pager, .toc-btn, .foot, .next-big { display: none !important; } body { background: #fff; font-size: 12pt; } .story, .card, .callout { box-shadow: none; } a { color: inherit; } }
@media (prefers-reduced-motion: reduce) { html:not([data-motion="full"]) { scroll-behavior: auto; } html:not([data-motion="full"]) * { transition: none !important; } }

/* ======================= hành trình học: chặng, hoạt động, mô phỏng ======================= */
.path { position: sticky; top: var(--hh, 58px); z-index: 30; margin: 0 0 14px; padding: 8px 10px; display: flex; gap: 10px; align-items: center; justify-content: space-between; flex-wrap: wrap; background: rgba(255, 250, 240, .96); border: 1px solid var(--line); border-radius: 999px; box-shadow: var(--shadow); backdrop-filter: blur(6px); }
.path ol { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; flex-wrap: wrap; } .path a { display: inline-flex; gap: 6px; align-items: center; padding: 5px 11px; border-radius: 999px; text-decoration: none; color: var(--ink); font: 600 12.5px var(--display); text-transform: uppercase; letter-spacing: .03em; }
.path a i { width: 12px; height: 12px; border-radius: 50%; border: 2.5px solid var(--sc); display: inline-block; background: transparent; } .path a.done i { background: var(--sc); } .path a.done i::after { content: ""; } .path a.cur { background: var(--paper); box-shadow: inset 0 0 0 1.5px var(--sc); } .path a:hover { background: var(--paper); }
.path-xp { font: 600 15px var(--display); color: var(--wheat-d); padding-right: 8px; } .path-xp b { color: var(--ink); }
.stage { margin: 44px 0; padding-left: 0; border-top: 5px solid var(--sc, var(--wheat)); position: relative; } .stage-tag { display: inline-block; position: relative; top: -17px; margin-left: 0; background: var(--sc); color: #fff; font: 500 14px var(--display); text-transform: uppercase; letter-spacing: .1em; padding: 4px 16px 4px 12px; border-radius: 0 0 10px 0; } .stage-tag span { opacity: .8; margin-right: 8px; }
.stage:first-of-type { margin-top: 24px; } .stage > .story { margin-top: 6px; }
.stage.done > .stage-tag::after { content: " ✓"; }
.scene { font-size: 1.04em; } .scene .narr { margin: 0 0 1em; }
.say { display: flex; gap: 10px; align-items: flex-end; margin: 0 0 14px; } .say:nth-of-type(even) { flex-direction: row-reverse; }
.say .av { flex: none; width: 40px; height: 40px; border-radius: 50%; background: var(--c); color: #fff; display: grid; place-items: center; font: 600 20px var(--display); box-shadow: var(--shadow); }
.say .bub { position: relative; max-width: 78%; background: #fff; border: 1.5px solid var(--c); border-radius: 18px 18px 18px 4px; padding: 8px 14px 10px; font-size: .98em; line-height: 1.45; } .say:nth-of-type(even) .bub { border-radius: 18px 18px 4px 18px; background: #fffdf4; } .say .bub b { display: block; font: 600 13px var(--display); text-transform: uppercase; letter-spacing: .06em; color: var(--c); margin-bottom: 1px; }

.act { background: var(--flour); border: 1.5px solid var(--line); border-radius: 18px; padding: clamp(16px, 2.6vw, 26px); margin: 28px 0; box-shadow: var(--shadow); position: relative; }
.act.done { border-color: var(--sc, #2e7d32); } .act-h { font-size: clamp(22px, 2.4vw, 28px); margin-bottom: .4em; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.act-badge { font: 500 12px var(--display); letter-spacing: .1em; text-transform: uppercase; color: #fff; background: var(--sc, var(--crust)); padding: 3px 10px; border-radius: 999px; }
.act-done { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 14px; padding: 10px 14px; background: #eaf5e4; border-radius: 12px; } .act-done b { color: var(--wheat-d); font-size: 1.3em; letter-spacing: .1em; }
.chip.yes { background: #2e7d32; color: #fff; border-color: #2e7d32; } .chip:disabled { opacity: .5; cursor: default; }
.note { color: var(--ink2); font-style: italic; }
.pop { animation: pop .35s ease-out; } @keyframes pop { from { transform: scale(.96); opacity: .3; } to { transform: scale(1); opacity: 1; } }
.shake { animation: shake .35s; } @keyframes shake { 20% { transform: translateX(-6px); } 40% { transform: translateX(6px); } 60% { transform: translateX(-4px); } 80% { transform: translateX(3px); } }
.dots { display: flex; gap: 6px; margin-bottom: 12px; } .dots i { width: 22px; height: 6px; border-radius: 3px; background: var(--line); } .dots i.done { background: #2e7d32; } .dots i.cur { background: var(--wheat); }

.choice-prompt { font-size: 1.15em; margin-bottom: .6em; } .choice-opts { display: flex; flex-wrap: wrap; gap: 10px; }
.choice-opt { font: 500 18px var(--display); letter-spacing: .03em; background: #fff; border: 2px solid var(--ink); border-radius: 12px; padding: 12px 20px; cursor: pointer; } .choice-opt:hover { background: var(--paper); } .choice-opt.on { background: var(--ink); color: var(--paper); } .choice-opt.seen:not(.on) { border-color: var(--wheat); }
.choice-out { margin-top: 14px; } .choice-out p { margin: 0 0 .6em; } .gl { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; } .gain, .loss { border-radius: 12px; padding: 10px 14px; font-size: .96em; } .gain { background: #eaf5e4; border: 1px solid #b9dcae; } .loss { background: #fbe9e6; border: 1px solid #efc3bd; } .gain b, .loss b { display: block; font: 600 13px var(--display); text-transform: uppercase; letter-spacing: .08em; } .gain b { color: #2e7d32; } .loss b { color: var(--tomato); }
.choice-insight { margin-top: 14px; padding: 14px 18px; background: var(--ink); color: var(--paper); border-radius: 14px; } .choice-insight b { display: block; font: 600 14px var(--display); text-transform: uppercase; letter-spacing: .1em; color: var(--wheat); }

.quiz-q { font-size: 1.15em; margin-bottom: .6em; } .quiz-opts { display: grid; gap: 8px; } .quiz-opt { text-align: left; font: 400 1em var(--serif); background: #fff; border: 2px solid var(--line); border-radius: 12px; padding: 10px 14px; cursor: pointer; display: flex; gap: 12px; align-items: baseline; } .quiz-opt span { font: 600 16px var(--display); color: var(--wheat-d); } .quiz-opt:hover:not(:disabled) { border-color: var(--wheat); background: var(--paper); }
.quiz-opt.ok { background: #eaf5e4; border-color: #2e7d32; } .quiz-opt.bad { background: #fbe9e6; border-color: var(--tomato); text-decoration: line-through; } .quiz-opt:disabled { cursor: default; }
.quiz-fb { margin-top: 12px; padding: 12px 16px; background: #fdf3d9; border-radius: 12px; } .quiz-fb .chip { margin-left: 10px; } .quiz-end { font-size: 1.2em; }
.sort-card { font-size: clamp(20px, 2.4vw, 26px); line-height: 1.3; text-align: center; background: #fff; border: 2px dashed var(--wheat); border-radius: 16px; padding: 26px 18px; margin-bottom: 14px; min-height: 96px; display: grid; place-items: center; transition: background .2s; } .sort-card.ok { background: #eaf5e4; border-color: #2e7d32; border-style: solid; } .sort-card.bad { background: #fbe9e6; border-color: var(--tomato); border-style: solid; }
.sort-btns { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; } .sort-bucket { text-align: left; background: #fff; border: 2px solid var(--ink); border-radius: 12px; padding: 10px 14px; cursor: pointer; font: inherit; position: relative; } .sort-bucket b { display: block; font: 600 18px var(--display); } .sort-bucket small { display: block; color: var(--ink2); font-size: 14px; line-height: 1.3; } .sort-bucket kbd { position: absolute; right: 8px; top: 8px; } .sort-bucket:hover:not(:disabled) { background: var(--paper); } .sort-bucket.ok { background: #eaf5e4; border-color: #2e7d32; } .sort-bucket.bad { background: #fbe9e6; border-color: var(--tomato); } .sort-bucket:disabled { cursor: default; }
.match-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; } .match-col { display: grid; gap: 8px; align-content: start; } .match-item { font: inherit; text-align: left; background: #fff; border: 2px solid var(--line); border-radius: 12px; padding: 10px 14px; cursor: pointer; line-height: 1.35; } .match-item:hover:not(.lock) { border-color: var(--wheat); } .match-item.sel { border-color: var(--ink); background: var(--paper); box-shadow: 0 0 0 3px rgba(201, 138, 27, .35); } .match-item.ok { background: #eaf5e4; border-color: #2e7d32; cursor: default; }
.flip-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; } .flip { position: relative; min-height: 180px; border: 0; padding: 0; background: none; cursor: pointer; perspective: 900px; font: inherit; } .flip .face { position: absolute; inset: 0; border-radius: 16px; padding: 16px; backface-visibility: hidden; transition: transform .5s; display: flex; flex-direction: column; justify-content: center; gap: 6px; text-align: left; } .flip .front { background: var(--ink); color: var(--paper); } .flip .front small { font: 500 12px var(--display); text-transform: uppercase; letter-spacing: .1em; color: var(--wheat); } .flip .front b { font: 500 21px/1.2 var(--display); } .flip .front em { font-size: 13px; opacity: .7; } .flip .back { background: #fff; border: 2px solid var(--wheat); transform: rotateY(180deg); font-size: .96em; line-height: 1.4; overflow: auto; } .flip.on .front { transform: rotateY(180deg); } .flip.on .back { transform: rotateY(0); }
.fc-count { font: 500 14px var(--display); letter-spacing: .06em; text-transform: uppercase; color: var(--ink2); margin-bottom: 8px; } .fc-card { width: 100%; min-height: 170px; border: 2px solid var(--ink); border-radius: 18px; background: #fff; cursor: pointer; font: inherit; padding: 20px; position: relative; text-align: center; display: grid; place-items: center; } .fc-card .front { font: 500 clamp(22px, 3vw, 30px)/1.2 var(--display); } .fc-card .front em { display: block; font: italic 400 14px var(--serif); color: var(--ink2); margin-top: 8px; } .fc-card .back { display: none; font-size: 1.05em; line-height: 1.5; } .fc-card.on .front { display: none; } .fc-card.on .back { display: block; background: #fdf3d9; border-radius: 12px; padding: 10px; } .fc-btns { display: flex; gap: 10px; justify-content: center; margin-top: 12px; }

/* mô phỏng: chia bánh khan hiếm */
.rb-top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 10px; } .rb-stock b { font: 600 26px var(--display); color: var(--tomato); } .rb-legend { list-style: none; display: flex; gap: 12px; flex-wrap: wrap; padding: 0; margin: 0; font-size: 14px; } .rb-legend i { display: inline-block; width: 12px; height: 12px; border-radius: 50%; margin-right: 5px; }
.rb-controls { display: grid; grid-template-columns: 1fr 1fr auto; gap: 14px; align-items: end; padding: 12px 14px; background: #fff; border-radius: 14px; border: 1px solid var(--line); } .rb-controls label { display: block; font-size: 15px; } .rb-controls b { font-family: var(--display); color: var(--crust); } .rb-controls input[type=range] { width: 100%; accent-color: var(--wheat); } .chip.go { background: var(--wheat); border-color: var(--wheat-d); }
.rb-queue { display: grid; grid-template-columns: repeat(10, 1fr); gap: 6px; margin: 14px 0 6px; } .cust { position: relative; aspect-ratio: 1; border-radius: 12px; background: #fff; border: 2px solid var(--line); display: grid; place-items: center; transition: background .2s, border-color .2s, transform .2s; } .cust .dot { width: 46%; aspect-ratio: 1; border-radius: 50%; background: var(--line); } .cust.t-quen .dot { background: #b3261e; } .cust.t-moi .dot { background: #3d6b7d; } .cust.t-tho .dot { background: #c98a1b; }
.cust .st { position: absolute; right: 3px; bottom: 0; font: 600 13px var(--display); } .cust.ok { background: #eaf5e4; border-color: #2e7d32; transform: scale(1.05); } .cust.ok .st { color: #2e7d32; } .cust.price { background: #f1ecdf; border-color: #a99d84; opacity: .75; } .cust.sold { background: #fbe9e6; border-color: var(--tomato); } .cust.sold .st { color: var(--tomato); } .cust.price .st { color: #6b5d45; }
.rb-result { margin-top: 12px; } .rb-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; } .rb-stats div { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 10px; text-align: center; } .rb-stats b { display: block; font: 600 24px var(--display); color: var(--crust); } .rb-stats span { font-size: 14px; color: var(--ink2); }
.rb-goals { list-style: none; padding: 0; display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0 0; } .rb-goals li { padding: 6px 14px 6px 36px; position: relative; border-radius: 999px; background: #fff; border: 1.5px solid var(--line); font-size: 15px; } .rb-goals li::before { content: ""; position: absolute; left: 12px; top: 9px; width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--line); } .rb-goals li.on { background: #eaf5e4; border-color: #2e7d32; } .rb-goals li.on::before { background: #2e7d32; border-color: #2e7d32; }
.rb-win { background: var(--ink); color: var(--paper); border-radius: 14px; padding: 14px 18px; margin: 10px 0 0; }

/* mô phỏng: bản đồ phố Ngã Ba */
.lens-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; } .chip.on { background: var(--ink); color: var(--paper); }
.town-wrap { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 6px; } .town-wrap svg { width: 100%; height: auto; display: block; }
.town-box { fill: rgba(201, 138, 27, .06); stroke: var(--wheat); stroke-width: 2.5; stroke-dasharray: 10 7; } .town-lab { font: 500 17px var(--display); fill: var(--wheat-d); text-transform: uppercase; letter-spacing: .08em; }
.flow path { fill: none; stroke: #5b4c3b; stroke-width: 2; opacity: .55; } .flow text { font: 500 14px var(--serif); fill: var(--ink2); text-anchor: middle; paint-order: stroke; stroke: #fff; stroke-width: 4px; } .flow .pkt { fill: var(--tomato); display: none; } .flowing .flow .pkt { display: inline; }
.flow.hot path { stroke: var(--tomato); stroke-width: 3.5; opacity: 1; } .flow.hot text { fill: var(--tomato); font-weight: 600; }
.node { cursor: pointer; } .node rect { transition: filter .15s; } .node:hover rect, .node:focus-visible rect { filter: brightness(1.12); } .node.sel rect { stroke: var(--ink); stroke-width: 4; } .node text { fill: #fff; text-anchor: middle; } .node .nl { font: 700 15.5px var(--display); letter-spacing: 0; } .node .ns { font: 500 12.5px var(--serif); opacity: .92; }
.micro rect { fill: #fff; stroke: var(--wheat); stroke-width: 2; } .micro text { font: 500 13px var(--serif); text-anchor: middle; fill: var(--ink); } .micro { transition: opacity .3s; }
[data-lens="micro"] .node:not([data-k="lan"]), [data-lens="micro"] .flow:not([data-a="lan"]):not([data-b="lan"]) { opacity: .25; } [data-lens="micro"] .town-box { stroke-opacity: .2; }
[data-lens="macro"] .flow text { display: none; } [data-lens="macro"] .town-box { fill: rgba(201, 138, 27, .16); stroke-width: 4; } [data-lens="macro"] .node rect { opacity: .85; }
.town-info { margin-top: 10px; padding: 12px 16px; background: #fdf3d9; border-radius: 12px; } .town-info b { display: block; font: 600 20px var(--display); } .town-info b small { font: italic 400 14px var(--serif); color: var(--ink2); margin-left: 6px; } .town-info span, .town-info em { display: block; } .town-info em { color: var(--crust); margin-top: 4px; } .town-info .prog { font: 400 13px var(--serif); color: var(--ink2); margin-top: 6px; }
.macro-panel { margin-top: 10px; padding: 14px 16px; background: #fff; border: 1px solid var(--line); border-radius: 12px; } .macro-panel h4 { font: 600 18px var(--display); margin: 0 0 4px; } .mp { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; align-items: center; font-size: 15px; margin: 4px 0; } .mp i { display: block; height: 10px; background: var(--line); border-radius: 5px; overflow: hidden; } .mp b { display: block; height: 100%; background: var(--wheat); }

@media (max-width: 720px) { .path { border-radius: 16px; } .path a { padding: 4px 8px; font-size: 12px; } .rb-controls { grid-template-columns: 1fr; } .rb-queue { grid-template-columns: repeat(8, 1fr); } .rb-stats { grid-template-columns: 1fr 1fr; } .match-grid { grid-template-columns: 1fr; } .gl { grid-template-columns: 1fr; } .say .bub { max-width: 86%; } .mp { grid-template-columns: 1fr; } }
@media print { .path, .act-done { display: none; } .act { box-shadow: none; } }

/* điều chỉnh sau khi đổi sang Be Vietnam Pro */
.path { padding: 6px 8px; } .path ol { gap: 2px; } .path a { padding: 5px 8px; font-size: 12px; letter-spacing: .02em; } .path a i { width: 11px; height: 11px; }
@media (max-width: 720px) { .path a { padding: 4px 7px; font-size: 11.5px; } }