/* CatDee landing page (bản nháp)
   Màu theo hồ sơ thương hiệu. Cam (#E08A3C, #C46E28) CHỈ dùng trong SVG mèo Darcy. */
:root {
  --cream: #F5EFE3;        /* nền chính, thay cho trắng */
  --cream-2: #FBF7EF;      /* mặt thẻ sáng hơn nền một chút */
  --cream-3: #ECE3D1;      /* nền mảng phụ */
  --willow: #3E6B48;       /* xanh liễu, màu chính */
  --willow-dark: #30573A;
  --leaf: #A9C49A;         /* lá non */
  --leaf-soft: #DCE7D3;
  --night: #1F3447;        /* xanh đêm, tiêu đề */
  --ink: #22261F;          /* mực đen, chữ */
  --ink-soft: #4A4F45;
  --wood: #A8703F;         /* nâu gỗ đàn, nhấn nhỏ */
  --wood-dark: #8A5A30;
  --line: #E2D8C3;
  --radius: 22px;
  --radius-sm: 14px;
  --shadow: 0 10px 30px -18px rgba(31, 52, 71, .45);
  --f-head: "Baloo 2", "Be Vietnam Pro", system-ui, sans-serif;
  --f-body: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-hand: "Patrick Hand", "Comic Sans MS", cursive;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  overflow-x: hidden;
}
img, video, svg { max-width: 100%; display: block; }
a { color: var(--willow); }
h1, h2, h3 { font-family: var(--f-head); color: var(--night); line-height: 1.15; margin: 0 0 .5em; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
b, strong { font-weight: 700; }

.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.container--narrow { max-width: 820px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--night); color: var(--cream); padding: 8px 14px; border-radius: 10px; z-index: 100; }
.skip:focus { left: 12px; }
:focus-visible { outline: 3px solid var(--wood); outline-offset: 3px; border-radius: 8px; }

/* ---------- Nút ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--f-body); font-weight: 700; font-size: 1rem; line-height: 1.2;
  padding: .85em 1.35em; border-radius: 999px; text-decoration: none; text-align: center;
  border: 2px solid transparent; cursor: pointer;
  transition: transform .15s ease, background-color .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--willow); color: var(--cream); box-shadow: 0 8px 18px -10px rgba(62,107,72,.9); }
.btn--primary:hover { background: var(--willow-dark); }
.btn--ghost { background: transparent; color: var(--night); border-color: var(--night); }
.btn--ghost:hover { background: var(--cream-3); }
.btn--cream { background: var(--cream); color: var(--night); }
.btn--outline-light { color: var(--cream); border-color: var(--cream); }
.btn--outline-light:hover { background: rgba(245,239,227,.12); }
.btn--sm { padding: .55em 1.05em; font-size: .95rem; }
.btn--lg { padding: 1em 1.6em; font-size: 1.05rem; }

/* ---------- Thanh trên cùng ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(245, 239, 227, .92);
  backdrop-filter: saturate(1.2) blur(8px); -webkit-backdrop-filter: saturate(1.2) blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar__inner { display: flex; align-items: center; gap: 12px; height: 68px; }
.logo { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; margin-right: auto; }
.logo__cat { width: 40px; height: 40px; flex: none; border-radius: 50%; display: block; }
img.darcy { object-fit: contain; display: block; }
.logo__text { font-family: var(--f-head); font-weight: 800; font-size: 1.6rem; color: var(--night); letter-spacing: -.01em; }
.logo__text span { color: var(--willow); }
.logo--light .logo__text { color: var(--cream); }
.logo--light .logo__text span { color: var(--leaf); }
.nav { display: flex; gap: 4px; }
.nav a { color: var(--night); font-weight: 600; text-decoration: none; padding: 8px 12px; border-radius: 999px; }
.nav a:hover { background: var(--cream-3); }
.nav-toggle { display: none; }

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 44px; padding: 0 11px; border: 0; border-radius: 12px;
    background: var(--cream-3); cursor: pointer;
  }
  .nav-toggle span { display: block; height: 2.5px; background: var(--night); border-radius: 2px; transition: transform .2s, opacity .2s; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
  .nav {
    position: absolute; left: 0; right: 0; top: 68px;
    flex-direction: column; gap: 0; padding: 8px 16px 16px;
    background: var(--cream); border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 14px 12px; font-size: 1.1rem; border-radius: 12px; }
}
@media (max-width: 380px) {
  .logo__text { font-size: 1.4rem; }
  .logo__cat { width: 34px; height: 34px; }
  .topbar .btn--sm { padding: .5em .8em; font-size: .9rem; }
}

/* ---------- Chung cho các phần ---------- */
.section { padding: 72px 0; }
.section--tint { background: var(--cream-3); }
.section--green { background: var(--willow); color: var(--cream); }
.title { font-size: clamp(1.9rem, 5.5vw, 2.8rem); font-weight: 800; margin-bottom: .7em; }
.title--light { color: var(--cream); }
.section-lead { font-size: 1.1rem; color: var(--ink-soft); max-width: 640px; margin-top: -.6em; margin-bottom: 1.8em; }
.eyebrow {
  display: inline-block; font-weight: 700; font-size: .85rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--willow); background: var(--leaf-soft); padding: 6px 12px; border-radius: 999px; margin-bottom: 14px;
}
.eyebrow--light { color: var(--night); background: var(--leaf); }
.small { font-size: .92rem; color: var(--ink-soft); }
.todo {
  background: #FFF3C4; color: #6B4E00; border: 1px dashed #C9A227;
  padding: 1px 6px; border-radius: 6px; font-size: .92em; font-weight: 600;
}
.todo--block { display: block; padding: 12px 14px; border-radius: 12px; }
.dots li { position: relative; padding-left: 1.4em; margin-bottom: .5em; }
.dots li::before { content: ""; position: absolute; left: .2em; top: .62em; width: .5em; height: .5em; border-radius: 50%; background: var(--leaf); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

/* ---------- Hero ---------- */
.hero { padding: 40px 0 16px; }
@media (max-width: 520px) {
  .section { padding: 56px 0; }
  .hero .cta-row .btn { flex: 1 1 100%; }
  .darcy-say--hero .darcy { width: 140px; height: 140px; }
}
.hero__grid { display: grid; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(2.3rem, 8vw, 3.9rem); font-weight: 800; margin-bottom: .4em; }
.hero .hl { color: var(--willow); background: linear-gradient(transparent 62%, var(--leaf) 62%, var(--leaf) 92%, transparent 92%); padding: 0 .08em; }
.lead { font-size: 1.15rem; color: var(--ink-soft); max-width: 580px; }
.lead strong { color: var(--ink); }
.slogan {
  display: inline-block; font-family: var(--f-hand); font-size: 1.7rem; line-height: 1.2;
  color: var(--night); background: var(--cream-2); border: 2px dashed var(--wood);
  padding: 8px 18px; border-radius: 16px; transform: rotate(-1.5deg); margin: 4px 0 22px;
}
.slogan--light { color: var(--cream); background: transparent; border-color: var(--leaf); }
.ticks { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 22px; color: var(--ink-soft); font-size: .95rem; font-weight: 500; }
.ticks li::before { content: "✓"; color: var(--willow); font-weight: 800; margin-right: 6px; }

.hero__visual { position: relative; }
.lyric-card {
  background: var(--cream-2); border-radius: 28px; padding: 26px 22px 20px;
  box-shadow: var(--shadow); border: 1px solid var(--line);
}
.lyric-card__tag { font-family: var(--f-head); font-weight: 700; color: var(--willow); font-size: 1.1rem; margin-bottom: 6px; }
.lyric {
  display: flex; flex-wrap: wrap; column-gap: .38em; row-gap: .2em;
  font-family: var(--f-body); font-weight: 600; font-size: clamp(1.45rem, 6.2vw, 2.1rem); color: var(--night);
  margin: 0 0 14px; min-height: 2.6em;
}
.syl { position: relative; display: inline-block; padding-top: 1.15em; opacity: .25; transition: opacity .3s ease, color .3s ease; }
.syl::before {
  content: attr(data-chord); position: absolute; left: 0; top: 0;
  font-family: var(--f-hand); font-weight: 400; font-size: .82em; line-height: 1.2; color: var(--wood-dark); white-space: nowrap;
  opacity: 0; transform: translateY(8px) scale(.8); transition: opacity .3s ease, transform .35s cubic-bezier(.3,1.6,.5,1);
}
.syl.on { opacity: 1; }
.syl.on::before { opacity: 1; transform: none; }
.syl.now { color: var(--willow); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.chip {
  font-family: var(--f-hand); font-size: 1.25rem; line-height: 1; color: var(--night);
  background: var(--cream-3); border-radius: 12px; padding: 8px 14px; transition: background .25s, color .25s, transform .25s;
}
.chip small { font-size: .7em; }
.chip.on { background: var(--willow); color: var(--cream); transform: translateY(-2px); }
.lyric-card__note { font-size: .85rem; color: var(--ink-soft); margin: 0; }

.darcy-say { display: flex; align-items: flex-end; gap: 10px; }
.darcy-say .darcy { width: 120px; height: 120px; flex: none; }
.bubble {
  position: relative; background: var(--cream-2); border: 2px solid var(--night); border-radius: 18px;
  padding: 10px 14px; font-size: .95rem; line-height: 1.45; margin: 0 0 40px;
}
.bubble::before {
  content: ""; position: absolute; left: -10px; bottom: 14px; width: 16px; height: 16px;
  background: var(--cream-2); border-left: 2px solid var(--night); border-bottom: 2px solid var(--night);
  transform: rotate(45deg);
}
.bubble b { font-family: var(--f-head); color: var(--willow); }
.darcy-say--hero { margin-top: 14px; }

@media (min-width: 900px) {
  .hero { padding: 72px 0 88px; }
  .hero__grid { grid-template-columns: 1.08fr 1fr; gap: 56px; }
  .darcy-say--hero .darcy { width: 150px; height: 150px; }
  .hero h1 { font-size: clamp(2.6rem, 4.6vw, 3.6rem); }
  .lyric { font-size: clamp(1.4rem, 2.1vw, 1.75rem); column-gap: .32em; }
  .lyric-card { padding: 30px 28px 22px; }
}

/* ---------- Nỗi đau ---------- */
.pains { display: grid; gap: 14px; }
.pains li {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--cream-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px;
}
.pains h3 { font-size: 1.25rem; margin-bottom: .25em; }
.pains p { margin: 0; color: var(--ink-soft); }
.num {
  flex: none; width: 42px; height: 42px; border-radius: 50%; background: var(--leaf); color: var(--night);
  display: grid; place-items: center; font-family: var(--f-head); font-weight: 800; font-size: 1.25rem;
}
.center-note { text-align: center; font-family: var(--f-hand); font-size: 1.45rem; color: var(--willow); margin: 28px auto 0; max-width: 640px; line-height: 1.35; }
@media (min-width: 760px) { .pains { grid-template-columns: repeat(2, 1fr); } .pains li:last-child { grid-column: 1 / -1; max-width: 560px; justify-self: center; width: 100%; } }
@media (min-width: 1040px) { .pains { grid-template-columns: repeat(6, 1fr); } .pains li { grid-column: span 2; } .pains li:nth-child(4) { grid-column: 2 / span 2; } .pains li:last-child { grid-column: 4 / span 2; max-width: none; } }

/* ---------- Đã thử ---------- */
.cards3 { display: grid; gap: 16px; }
.card { background: var(--cream-2); border-radius: var(--radius); padding: 24px; border: 1px solid var(--line); }
.card__kicker { display: inline-block; font-weight: 700; font-size: .85rem; color: var(--wood-dark); background: var(--cream-3); padding: 4px 10px; border-radius: 999px; margin-bottom: 12px; }
.card h3 { font-size: 1.3rem; }
.card p:last-child { margin: 0; color: var(--ink-soft); }
.big-note { text-align: center; font-size: clamp(1.2rem, 4vw, 1.5rem); margin: 32px auto 0; max-width: 720px; color: var(--night); }
@media (min-width: 860px) { .cards3 { grid-template-columns: repeat(3, 1fr); } }

/* ---------- So sánh ---------- */
/* Hai con đường đều tích cực, không cột nào "sai" */
.paths { display: grid; gap: 16px; }
.path { background: var(--cream-2); border: 2px solid var(--leaf); border-radius: var(--radius); padding: 24px; }
.path--catdee { border-color: var(--willow); }
.path__tag { display: inline-block; font-weight: 700; font-size: .9rem; color: var(--night); background: var(--leaf-soft); padding: 5px 12px; border-radius: 999px; margin-bottom: 12px; }
.path--catdee .path__tag { color: var(--cream); background: var(--willow); }
.path h3 { font-size: 1.3rem; margin-bottom: .7em; }
.path .dots li:last-child { margin-bottom: 0; }
@media (min-width: 760px) { .paths { grid-template-columns: 1fr 1fr; } }

/* ---------- Phương pháp ---------- */
.steps { display: grid; gap: 16px; counter-reset: s; }
.step { background: rgba(245,239,227,.08); border: 1px solid rgba(245,239,227,.22); border-radius: var(--radius); padding: 20px; }
.step__art { width: 100%; max-width: 220px; height: auto; margin-bottom: 14px; border-radius: 16px; }
.step__no { display: inline-block; font-family: var(--f-hand); font-size: 1.2rem; color: var(--night); background: var(--leaf); padding: 2px 12px; border-radius: 999px; margin-bottom: 8px; }
.step h3 { color: var(--cream); font-size: 1.45rem; }
.step p { margin: 0; color: rgba(245,239,227,.92); }
.six-chords { margin-top: 28px; text-align: center; background: var(--night); color: var(--cream); border-radius: var(--radius); padding: 26px 18px; }
.six-chords__title { font-family: var(--f-head); font-weight: 800; font-size: clamp(1.45rem, 5vw, 2rem); line-height: 1.2; margin-bottom: 14px; }
.six-chords__list { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 14px; }
.six-chords__list li { font-family: var(--f-hand); font-size: 1.6rem; line-height: 1; color: var(--night); background: var(--leaf); border-radius: 14px; padding: 10px 16px; min-width: 64px; }
.six-chords__note { margin: 0; color: rgba(245,239,227,.9); }
.analogies { margin-top: 28px; background: var(--cream); color: var(--ink); border-radius: var(--radius); padding: 22px; }
.analogies__title { font-family: var(--f-head); font-weight: 700; font-size: 1.2rem; color: var(--night); margin-bottom: 10px; }
.analogies ul { display: grid; gap: 10px; }
.analogies li { background: var(--cream-2); border-radius: 12px; padding: 10px 14px; }
.analogies b { color: var(--willow); }
@media (min-width: 680px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .steps { grid-template-columns: repeat(4, 1fr); } .analogies ul { grid-template-columns: repeat(3, 1fr); } }

/* ---------- Workshop ---------- */
.workshop { display: grid; gap: 24px; }
.facts { display: grid; gap: 10px; margin: 0 0 18px; }
.facts div { background: var(--cream-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 16px; }
.facts dt { font-size: .82rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--willow); }
.facts dd { margin: 0; font-weight: 600; font-size: 1.1rem; color: var(--night); }
.sub { font-size: 1.25rem; margin-top: 8px; }
.prize { background: var(--night); color: var(--cream); border-radius: var(--radius); padding: 24px; align-self: start; }
.prize h3 { color: var(--cream); font-size: 1.5rem; }
.podium { display: grid; gap: 10px; margin: 6px 0 18px; }
.podium li { display: flex; align-items: center; gap: 12px; background: rgba(245,239,227,.08); border-radius: 14px; padding: 10px 12px; }
.podium b { font-size: 1.05rem; }
.medal { flex: none; display: grid; place-items: center; width: 54px; height: 54px; border-radius: 50%; font-family: var(--f-head); font-weight: 800; font-size: 1rem; background: var(--leaf); color: var(--night); }
.podium li:nth-child(2) .medal { background: var(--cream); }
.podium li:nth-child(3) .medal { background: var(--wood); color: var(--cream); }
.prize .small { color: rgba(245,239,227,.8); }
.darcy-say--small .darcy { width: 92px; height: 92px; }
.darcy-say--small .bubble { color: var(--ink); margin-bottom: 26px; border-color: var(--leaf); }
.darcy-say--small .bubble::before { border-color: var(--leaf); }
.clip { margin: 0; background: var(--cream-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
.clip video { width: 100%; aspect-ratio: 540 / 574; object-fit: cover; border-radius: 16px; background: var(--cream-3); }
.clip figcaption { font-size: .88rem; color: var(--ink-soft); padding: 10px 4px 2px; }
.clip__title { display: block; font-family: var(--f-head); font-size: 1.35rem; color: var(--night); margin-bottom: 4px; }
@media (min-width: 900px) {
  .workshop { grid-template-columns: 1.15fr 1fr; grid-template-areas: "main prize" "clip clip"; column-gap: 40px; row-gap: 32px; }
  .workshop__main { grid-area: main; }
  .prize { grid-area: prize; }
  .clip { grid-area: clip; display: grid; grid-template-columns: 300px 1fr; gap: 28px; align-items: center; padding: 16px; }
  .clip figcaption { font-size: 1rem; padding: 0 12px 0 0; }
}

/* ---------- Gói học ---------- */
.plans { display: grid; gap: 16px; }
.plan {
  display: flex; flex-direction: column; background: var(--cream-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
}
.plan h3 { font-size: 1.4rem; margin-bottom: .2em; }
.plan .dots { margin: 8px 0 20px; flex: 1; }
.plan .btn { align-self: stretch; }
.plan__badge { align-self: flex-start; font-size: .82rem; font-weight: 700; color: var(--cream); background: var(--willow); padding: 4px 12px; border-radius: 999px; margin-bottom: 12px; }
.plan__badge--soft { color: var(--willow); background: var(--leaf-soft); }
.plan--feature { border: 2px solid var(--willow); box-shadow: var(--shadow); }
.price { font-family: var(--f-head); font-weight: 800; font-size: 2.5rem; color: var(--willow); line-height: 1.1; margin: 0 0 4px; }
.price span { font-size: 1rem; font-weight: 600; color: var(--ink-soft); font-family: var(--f-body); }
.plan--small .price { font-size: 2.1rem; }
@media (min-width: 700px) { .plans { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .plans { grid-template-columns: 1.15fr 1fr 1fr .9fr; } }

.guarantee {
  display: flex; gap: 16px; align-items: flex-start; margin-top: 24px;
  background: var(--leaf-soft); border: 2px solid var(--leaf); border-radius: var(--radius); padding: 22px;
}
.guarantee__icon { width: 48px; height: 48px; flex: none; }
.guarantee h3 { font-size: 1.35rem; }
.guarantee p:last-child { margin-bottom: 0; }
.policy { display: grid; gap: 10px; margin-top: 18px; }
.policy li { background: var(--cream-2); border-radius: var(--radius-sm); padding: 12px 16px; border: 1px solid var(--line); }
@media (max-width: 480px) { .guarantee { flex-direction: column; } }

/* ---------- Người dạy ---------- */
.teacher { display: grid; gap: 28px; align-items: center; }
.teacher__photo img { width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; border-radius: 28px; box-shadow: var(--shadow); border: 6px solid var(--cream-2); }
.role { font-weight: 600; color: var(--ink-soft); margin-top: -.6em; }
.name-meaning { background: var(--cream-2); border-left: 5px solid var(--wood); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 14px 16px; margin-bottom: 16px; }
.name-meaning p:last-child { margin: 0; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
.stats li { background: var(--cream-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px; text-align: center; }
.stats .todo { display: block; font-size: .78rem; margin-bottom: 6px; }
.stats b { display: block; font-family: "Baloo 2", sans-serif; font-size: 1.9rem; line-height: 1.1; color: var(--green, #3E6B48); }
.stats small { display: block; font-size: .85rem; color: var(--ink-soft); }
@media (min-width: 860px) { .teacher { grid-template-columns: .9fr 1.1fr; gap: 56px; } }

/* ---------- Cảm nhận ---------- */
.reviews { display: grid; gap: 16px; }
.review-empty { min-height: 160px; display: grid; place-items: center; text-align: center; border: 2px dashed var(--wood); border-radius: var(--radius); padding: 20px; background: rgba(251,247,239,.6); }
@media (min-width: 820px) { .reviews { grid-template-columns: repeat(3, 1fr); } }
.center-note-small { text-align: center; margin: 20px auto 0; max-width: 640px; }

/* ---------- Hỏi đáp ---------- */
.faq { display: grid; gap: 12px; }
.faq details { background: var(--cream-2); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.faq details[open] { border-color: var(--leaf); box-shadow: var(--shadow); }
.faq summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 14px;
  padding: 18px 18px; font-weight: 700; font-size: 1.08rem; color: var(--night);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; flex: none; display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%;
  background: var(--leaf-soft); color: var(--willow); font-size: 1.4rem; font-weight: 700; line-height: 1; transition: transform .2s;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div { padding: 0 18px 18px; color: var(--ink-soft); }
.faq details > div p { margin: 0; }

/* ---------- Kêu gọi cuối ---------- */
.final { background: var(--night); color: var(--cream); padding: 64px 0; }
.final__inner { display: grid; gap: 20px; align-items: center; justify-items: start; }
.final h2 { color: var(--cream); font-size: clamp(1.9rem, 6vw, 2.8rem); }
.darcy--final { width: 170px; height: 170px; }
@media (min-width: 820px) { .final__inner { grid-template-columns: auto 1fr; gap: 40px; } .darcy--final { width: 220px; height: 220px; } }

/* ---------- Footer ---------- */
.footer { background: #172736; color: rgba(245,239,227,.85); padding: 40px 0 110px; font-size: .95rem; }
.footer__inner { display: grid; gap: 18px; }
.footer a { color: var(--leaf); }
.footer p { margin: 6px 0; }
.footer__copy { opacity: .7; font-size: .85rem; }
@media (min-width: 820px) { .footer { padding-bottom: 40px; } .footer__inner { grid-template-columns: 1.4fr 1fr; } .footer__copy { grid-column: 1 / -1; } }

/* ---------- Nút Zalo nổi (chỉ trên điện thoại) ---------- */
.zalo-float {
  position: fixed; right: 16px; bottom: 16px; z-index: 60;
  display: none; align-items: center; gap: 8px;
  background: var(--willow); color: var(--cream); text-decoration: none; font-weight: 700;
  padding: 12px 18px 12px 14px; border: 2px solid var(--cream); border-radius: 999px; box-shadow: 0 10px 24px -8px rgba(31,52,71,.6);
  transform: translateY(140%); transition: transform .3s ease;
}
.zalo-float svg { width: 24px; height: 24px; }
.zalo-float.show { transform: none; }
@media (max-width: 820px) { .zalo-float { display: inline-flex; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .syl { opacity: 1; }
  .syl::before { opacity: 1; transform: none; }
}