/* ==========================================================
   Trường Mầm non Cầu Vồng - trang demo tĩnh (HTML + CSS)
   Phong cách: pastel vui nhộn nhưng gọn gàng, hình khối bo tròn
   ========================================================== */

/* ---------- Design tokens ---------- */
:root {
  --cream: #FFFBF2;
  --ink: #26324D;
  --ink-soft: #46536E;
  --ink-deep: #1F2A44;
  --line: #7C8BA8;

  --coral: #FF8A7A;  --coral-soft: #FFE6E1;  --coral-ink: #8A2214;
  --sun: #FFD35C;    --sun-soft: #FFF3CC;    --sun-ink: #6B4500;
  --mint: #8FE3C4;   --mint-soft: #DFF8EE;   --mint-ink: #0B5E45;
  --sky: #7CC6F2;    --sky-soft: #DDF1FC;    --sky-ink: #0B4F7D;
  --lav: #C5B3F0;    --lav-soft: #EEE9FB;    --lav-ink: #4B3A8C;

  --font-head: "Baloo 2", "Nunito", "Trebuchet MS", system-ui, sans-serif;
  --font-body: "Nunito", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* thang khoảng cách */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4.5rem;
  --s-9: 6rem;

  --r-sm: 16px;
  --r-md: 24px;
  --r-lg: 32px;

  --fs-body: 1.0625rem;
  --fs-h1: clamp(2.25rem, 1.35rem + 4.4vw, 4.25rem);
  --fs-h2: clamp(1.75rem, 1.2rem + 2.4vw, 2.75rem);
  --fs-h3: clamp(1.2rem, 1.1rem + 0.5vw, 1.45rem);

  --shadow-soft: 0 10px 30px -12px rgba(38, 50, 77, 0.22);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); font-weight: 800; }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { max-width: 100%; }
address { font-style: normal; }
[id] { scroll-margin-top: 6rem; }

a { color: var(--sky-ink); text-underline-offset: 3px; }

:focus-visible {
  outline: 3px solid var(--sky-ink);
  outline-offset: 3px;
  border-radius: 6px;
}
main:focus { outline: none; }

.sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip {
  position: absolute;
  left: var(--s-4);
  top: -5rem;
  z-index: 100;
  padding: var(--s-3) var(--s-5);
  background: var(--ink-deep);
  color: #fff;
  font-weight: 700;
  border-radius: 999px;
  text-decoration: none;
}
.skip:focus { top: var(--s-4); }

/* ---------- Layout helpers ---------- */
.wrap {
  width: min(100% - 2rem, 72rem);
  margin-inline: auto;
}
.wrap--narrow { width: min(100% - 2rem, 46rem); }

.section { position: relative; }
.section > .wrap { padding-block: var(--s-8) var(--s-7); }

.section-head {
  max-width: 40rem;
  margin: 0 auto var(--s-7);
  text-align: center;
  display: grid;
  gap: var(--s-3);
}
.section-head p:not(.eyebrow) { color: var(--ink-soft); }

.eyebrow {
  justify-self: center;
  padding: 0.25rem 1rem;
  background: var(--sun-soft);
  color: var(--sun-ink);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 999px;
}

.wave {
  display: block;
  width: 100%;
  height: clamp(36px, 6vw, 80px);
  margin-bottom: -1px;
}
.wave--cream { color: var(--cream); }
.wave--sun   { color: var(--sun-soft); }
.wave--mint  { color: var(--mint-soft); }
.wave--sky   { color: var(--sky-soft); }
.wave--coral { color: var(--coral-soft); }
.wave--ink   { color: var(--ink-deep); }

/* nhóm màu dùng chung cho thẻ */
.v-coral, .p-coral, .t-coral, .i-coral { --c: var(--coral); --c-soft: var(--coral-soft); --c-ink: var(--coral-ink); }
.v-sun,   .p-sun,   .t-sun,   .i-sun   { --c: var(--sun);   --c-soft: var(--sun-soft);   --c-ink: var(--sun-ink); }
.v-mint,  .p-mint,  .t-mint,  .i-mint  { --c: var(--mint);  --c-soft: var(--mint-soft);  --c-ink: var(--mint-ink); }
.v-sky,   .p-sky,   .t-sky,   .i-sky   { --c: var(--sky);   --c-soft: var(--sky-soft);   --c-ink: var(--sky-ink); }
.t-lav { --c: var(--lav); --c-soft: var(--lav-soft); --c-ink: var(--lav-ink); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.6rem 1.6rem;
  border: 0;
  border-radius: 999px;
  background: var(--coral);
  color: #3A1109;
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 5px 0 #D9614F;
  transition: transform 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(3px); }
.btn--sm { min-height: 2.75rem; padding: 0.4rem 1.2rem; font-size: 1rem; }
.btn--block { width: 100%; }
.btn--ghost {
  background: #fff;
  color: var(--sky-ink);
  box-shadow: 0 5px 0 var(--sky);
}

/* ---------- Header ---------- */
.site-header {
  background: var(--cream);
  border-bottom: 3px dashed var(--sky-soft);
  z-index: 50;
}
.header-in {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "brand cta"
    "nav nav";
  align-items: center;
  gap: var(--s-2) var(--s-3);
  padding-block: var(--s-3);
}
.brand {
  grid-area: brand;
  display: flex;
  align-items: center;
  gap: var(--s-3);
  min-height: 2.75rem;
  color: var(--ink);
  text-decoration: none;
}
.brand-logo { width: 2.75rem; height: 2.75rem; flex: none; }
.brand-text { display: grid; line-height: 1.1; }
.brand-text strong { font-family: var(--font-head); font-size: 1.5rem; font-weight: 800; }
.brand-text small { font-size: 0.9375rem; font-weight: 700; color: var(--ink-soft); }
.header-cta { grid-area: cta; }

.nav { grid-area: nav; }
.nav ul { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--s-1); }
.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0 0.85rem;
  border-radius: 999px;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}
.nav a:hover { background: var(--sun-soft); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--sky-soft) 0%, #EEF9FF 100%);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  gap: var(--s-7);
  padding-block: var(--s-7) var(--s-6);
  align-items: center;
}
.hero-copy { display: grid; gap: var(--s-5); justify-items: start; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 0.35rem 1rem;
  background: #fff;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.9375rem;
  color: var(--ink);
  box-shadow: var(--shadow-soft);
}
.badge-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--coral);
  flex: none;
}
.hl {
  background: linear-gradient(transparent 60%, var(--sun) 60%, var(--sun) 92%, transparent 92%);
  padding-inline: 0.15em;
  border-radius: 6px;
}
.lead { font-size: 1.1875rem; color: var(--ink-soft); max-width: 34rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: var(--s-4); }

.stats { display: flex; flex-wrap: wrap; gap: var(--s-4) var(--s-6); margin: 0; padding-top: var(--s-3); }
.stats div { display: flex; flex-direction: column-reverse; }
.stats dt { font-size: 0.9375rem; font-weight: 700; color: var(--ink-soft); }
.stats dd {
  margin: 0;
  font-family: var(--font-head);
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
  color: var(--sky-ink);
}

.hero-art-wrap { position: relative; justify-self: center; width: 100%; max-width: 34rem; }
.hero-art {
  display: block;
  width: 100%;
  height: auto;
  border: 6px solid #fff;
  border-radius: 40px;
  box-shadow: 0 22px 40px -18px rgba(11, 79, 125, 0.45);
  overflow: hidden;
}
.art-note {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--s-2);
  width: fit-content;
  max-width: 100%;
  margin: -1.5rem auto 0;
  padding: 0.4rem 1.1rem 0.4rem 0.8rem;
  background: var(--sun);
  color: #4A3000;
  font-weight: 800;
  font-size: 0.9375rem;
  border-radius: 999px;
  box-shadow: 0 4px 0 #E3AE2A;
}
.art-note svg { width: 1.4rem; height: 1.4rem; flex: none; color: #4A3000; }

/* ---------- Values ---------- */
.values-grid { display: grid; gap: var(--s-5); }
.value {
  display: grid;
  gap: var(--s-3);
  align-content: start;
  padding: var(--s-6) var(--s-5);
  background: var(--c-soft);
  border: 3px solid #fff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-soft);
}
.value p { color: var(--ink-soft); }

.icon-tile {
  display: grid;
  place-items: center;
  width: 4rem;
  height: 4rem;
  border-radius: 22px;
  background: var(--c);
  color: var(--c-ink);
  --cut: var(--c);
  flex: none;
}
.icon-tile svg { width: 2.1rem; height: 2.1rem; }
.icon-tile--sm { width: 3.25rem; height: 3.25rem; border-radius: 18px; }
.icon-tile--sm svg { width: 1.7rem; height: 1.7rem; }

/* ---------- Programs ---------- */
.program-grid { display: grid; gap: var(--s-5); }
.program {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-soft);
}
.program-top {
  position: relative;
  display: grid;
  place-items: center;
  padding: var(--s-5) var(--s-5) var(--s-6);
  background: var(--c);
}
.program-top::after {
  content: "";
  position: absolute;
  inset: auto -10% -1px -10%;
  height: 22px;
  background: #fff;
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}
.program-top svg {
  width: 7rem;
  height: 7rem;
  padding: 0.35rem;
  background: rgba(255, 255, 255, 0.55);
  border-radius: 50%;
}
.age-chip {
  position: absolute;
  top: var(--s-4);
  left: var(--s-4);
  padding: 0.15rem 0.8rem;
  background: #fff;
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 0.9375rem;
  font-weight: 700;
  border-radius: 999px;
}
.program-body { display: grid; gap: var(--s-3); align-content: start; padding: var(--s-3) var(--s-5) var(--s-5); flex: 1; }
.program-body p { color: var(--ink-soft); }
.tags { display: flex; flex-wrap: wrap; gap: var(--s-2); margin-top: auto; padding-top: var(--s-2); }
.tags li {
  padding: 0.1rem 0.7rem;
  background: var(--c-soft);
  color: var(--ink);
  font-size: 0.9375rem;
  font-weight: 700;
  border-radius: 999px;
}

/* ---------- Timeline ---------- */
.day { background: var(--sun-soft); }
.timeline { position: relative; display: grid; gap: var(--s-4); }
.timeline::before {
  content: "";
  position: absolute;
  left: 2.35rem;
  top: 1rem;
  bottom: 1rem;
  border-left: 4px dotted var(--sun-ink);
  opacity: 0.4;
}
.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 4.75rem 1fr;
  gap: var(--s-4);
  align-items: start;
}
.timeline li:nth-child(5n+1) { --c: var(--coral); }
.timeline li:nth-child(5n+2) { --c: var(--sky); }
.timeline li:nth-child(5n+3) { --c: var(--mint); }
.timeline li:nth-child(5n+4) { --c: var(--lav); }
.timeline li:nth-child(5n+5) { --c: #fff; }
.timeline time {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 2.75rem;
  background: var(--c);
  border: 3px solid var(--sun-soft);
  border-radius: 999px;
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 800;
}
.timeline li > div {
  display: grid;
  gap: var(--s-1);
  padding: var(--s-4) var(--s-5);
  background: #fff;
  border-radius: var(--r-md);
  box-shadow: var(--shadow-soft);
}
.timeline p { color: var(--ink-soft); font-size: 1rem; }

/* ---------- Facilities ---------- */
.fac-grid { display: grid; gap: var(--s-6); align-items: center; }
.fac-art svg {
  display: block;
  width: 100%;
  height: auto;
  border: 6px solid #fff;
  border-radius: 40px;
  box-shadow: var(--shadow-soft);
}
.fac-copy { display: grid; gap: var(--s-4); }
.fac-copy .eyebrow { justify-self: start; }
.lead-sm { color: var(--ink-soft); }
.fac-list { display: grid; gap: var(--s-4); grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); margin-top: var(--s-2); }
.fac-list li { display: flex; gap: var(--s-3); align-items: flex-start; }
.fac-list h3 { font-size: 1.125rem; }
.fac-list p { color: var(--ink-soft); font-size: 1rem; line-height: 1.5; }

/* ---------- Teachers ---------- */
.teachers { background: var(--mint-soft); }
.teacher-grid { display: grid; gap: var(--s-5); }
.teacher {
  display: grid;
  justify-items: center;
  gap: var(--s-2);
  padding: var(--s-6) var(--s-5) var(--s-5);
  background: #fff;
  border-radius: var(--r-lg);
  text-align: center;
  box-shadow: var(--shadow-soft);
}
.avatar {
  width: 8rem;
  height: 8rem;
  margin-bottom: var(--s-2);
  background: var(--av-bg);
  border: 4px solid var(--av-ring);
  border-radius: 50%;
  overflow: hidden;
}
.av-1 { --skin: #FFD9B8; --hair: #5B3A29; --shirt: #FF8A7A; --av-bg: var(--sky-soft); --av-ring: var(--sky); }
.av-2 { --skin: #F2C6A0; --hair: #2B2B3A; --shirt: #4DBF8F; --av-bg: var(--sun-soft); --av-ring: var(--sun); }
.av-3 { --skin: #FFDDC2; --hair: #A5652F; --shirt: #FFC93A; --av-bg: var(--lav-soft); --av-ring: var(--lav); }
.av-4 { --skin: #E8B98E; --hair: #3A2A22; --shirt: #4CA5DD; --av-bg: var(--coral-soft); --av-ring: var(--coral); }
.role {
  padding: 0.05rem 0.8rem;
  background: var(--sky-soft);
  color: var(--sky-ink);
  font-size: 0.9375rem;
  font-weight: 800;
  border-radius: 999px;
}
.teacher p:last-child { color: var(--ink-soft); font-size: 1rem; line-height: 1.55; margin-top: var(--s-2); }

/* ---------- Testimonials ---------- */
.voice-grid { display: grid; gap: var(--s-5); }
.voice {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--s-5);
  margin: 0;
  padding: var(--s-7) var(--s-5) var(--s-5);
  background: #fff;
  border: 3px solid var(--sun-soft);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-soft);
}
.voice::before {
  content: "\201C";
  position: absolute;
  top: 0.25rem;
  left: var(--s-5);
  font-family: var(--font-head);
  font-size: 5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--coral);
}
.voice blockquote { margin: 0; font-size: 1.0625rem; }
.voice figcaption { display: flex; align-items: center; gap: var(--s-3); font-size: 0.9375rem; line-height: 1.4; color: var(--ink-soft); }
.voice figcaption strong { color: var(--ink); font-size: 1rem; }
.initial {
  display: grid;
  place-items: center;
  flex: none;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--c);
  color: var(--c-ink);
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 800;
}

/* ---------- Gallery ---------- */
.gallery { background: var(--sky-soft); }
.gal-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-3); }
.gtile {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: #fff;
  border: 4px solid #fff;
  border-radius: var(--r-md);
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease;
}
.gtile:nth-child(odd) { transform: rotate(-1.2deg); }
.gtile:nth-child(even) { transform: rotate(1deg); }
.gtile:hover { transform: rotate(0) scale(1.03); }
.gtile svg { display: block; width: 100%; height: auto; border-radius: 18px; }
.gtile figcaption {
  position: absolute;
  left: var(--s-2);
  bottom: var(--s-2);
  max-width: calc(100% - 1rem);
  padding: 0.1rem 0.75rem;
  background: #fff;
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.5;
  border-radius: 999px;
}

/* ---------- Enrollment ---------- */
.enroll { background: var(--coral-soft); }
.enroll-grid { display: grid; gap: var(--s-7); align-items: start; }
.enroll-copy { display: grid; gap: var(--s-4); }
.enroll-copy .eyebrow { justify-self: start; }
.steps { display: grid; gap: var(--s-4); margin-top: var(--s-3); }
.steps li { display: flex; gap: var(--s-4); align-items: flex-start; }
.steps h3 { font-size: 1.1875rem; }
.steps p { color: var(--ink-soft); font-size: 1rem; line-height: 1.5; }
.step-n {
  display: grid;
  place-items: center;
  flex: none;
  width: 3rem;
  height: 3rem;
  background: var(--coral);
  color: #3A1109;
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  border-radius: 50%;
  box-shadow: 0 4px 0 #D9614F;
}

.form {
  display: grid;
  gap: var(--s-4);
  padding: var(--s-5);
  background: #fff;
  border-radius: var(--r-lg);
  box-shadow: 0 22px 40px -22px rgba(138, 34, 20, 0.5);
}
.form h3 { font-size: 1.5rem; }
.form-note { color: var(--ink-soft); font-size: 0.9375rem; line-height: 1.5; }
.field { display: grid; gap: var(--s-1); }
.field-row { display: grid; gap: var(--s-4); }
.field label { font-weight: 800; font-size: 1rem; }
.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 3rem;
  padding: 0.6rem 0.9rem;
  background: var(--cream);
  border: 2px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--ink);
  font: inherit;
}
.field textarea { resize: vertical; min-height: 6rem; }
.field ::placeholder { color: #5F6C86; opacity: 1; }
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible {
  border-color: var(--sky-ink);
  outline-offset: 1px;
  border-radius: var(--r-sm);
}

/* ---------- FAQ ---------- */
.faq-list { display: grid; gap: var(--s-3); }
.faq-list details {
  background: #fff;
  border: 3px solid var(--sky-soft);
  border-radius: var(--r-md);
}
.faq-list details[open] { border-color: var(--sky); background: var(--sky-soft); }
.faq-list summary {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 3.5rem;
  padding: var(--s-3) 3.5rem var(--s-3) var(--s-5);
  font-family: var(--font-head);
  font-size: 1.1875rem;
  font-weight: 700;
  line-height: 1.3;
  cursor: pointer;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  position: absolute;
  right: var(--s-3);
  top: 50%;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  margin-top: -1rem;
  background: var(--sun);
  color: var(--ink);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
  border-radius: 50%;
  transition: transform 0.2s ease;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { padding: 0 var(--s-5) var(--s-5); color: var(--ink-soft); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink-deep);
  color: #E4EAF6;
  font-size: 1rem;
}
.footer-grid { display: grid; gap: var(--s-6); padding-block: var(--s-6) var(--s-7); }
.foot-logo { display: flex; align-items: center; gap: var(--s-3); margin-bottom: var(--s-3); font-family: var(--font-head); font-size: 1.375rem; font-weight: 800; color: #fff; }
.foot-logo svg { width: 2.5rem; height: 2.5rem; flex: none; }
.foot-title { margin-bottom: var(--s-3); font-family: var(--font-head); font-size: 1.125rem; color: var(--sun); }
.site-footer a { color: #fff; text-underline-offset: 3px; }
.site-footer address p { display: flex; gap: var(--s-3); align-items: flex-start; margin-bottom: var(--s-3); }
.site-footer address svg { width: 1.25rem; height: 1.25rem; margin-top: 0.3rem; flex: none; color: var(--sun); }
.foot-links { display: grid; gap: 0; }
.foot-links a { display: inline-flex; align-items: center; min-height: 2.75rem; }
.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-2) var(--s-5);
  padding-block: var(--s-5);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.9375rem;
  color: #C9D3E6;
}
.foot-bottom a { display: inline-flex; align-items: center; min-height: 2.75rem; }
.site-footer :focus-visible { outline-color: var(--sun); }

/* ---------- Responsive ---------- */
@media (min-width: 600px) {
  .values-grid,
  .program-grid,
  .teacher-grid,
  .voice-grid { grid-template-columns: repeat(2, 1fr); }
  .field-row { grid-template-columns: 1fr 1fr; }
  .form { padding: var(--s-6); }
  .gal-grid { gap: var(--s-4); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 900px) {
  .site-header { position: sticky; top: 0; background: rgba(255, 251, 242, 0.96); }
  .header-in {
    grid-template-columns: auto 1fr auto;
    grid-template-areas: "brand nav cta";
    gap: var(--s-5);
  }
  .nav ul { justify-content: center; }

  .hero-grid { grid-template-columns: 1.05fr 0.95fr; gap: var(--s-6); padding-block: var(--s-8) var(--s-7); }
  .hero-art-wrap { justify-self: end; }

  .fac-grid { grid-template-columns: 0.9fr 1.1fr; gap: var(--s-7); }
  .enroll-grid { grid-template-columns: 1fr 1fr; gap: var(--s-8); }

  .timeline { grid-template-columns: repeat(3, 1fr); gap: var(--s-5); }
  .timeline::before { display: none; }
  .timeline li { grid-template-columns: 1fr; grid-template-rows: auto 1fr; gap: var(--s-3); }
  .timeline time { justify-self: start; min-width: 5.5rem; padding-inline: var(--s-4); }

  .gal-grid { grid-template-columns: repeat(3, 1fr); }
  .voice-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1.4fr 1.4fr 1fr 1.2fr; }
}

@media (min-width: 1100px) {
  .values-grid { grid-template-columns: repeat(4, 1fr); }
  .program-grid { grid-template-columns: repeat(4, 1fr); }
  .teacher-grid { grid-template-columns: repeat(4, 1fr); }
  .section > .wrap { padding-block: var(--s-9) var(--s-8); }
  .hero-grid { padding-block: var(--s-9) var(--s-8); }
}

/* ---------- Chuyển động nhẹ (tắt khi người dùng giảm chuyển động) ---------- */
@keyframes drift {
  from { transform: translateX(-12px); }
  to   { transform: translateX(16px); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: no-preference) {
  .cloud-drift { animation: drift 9s ease-in-out infinite alternate; }
  .cd2 { animation-duration: 13s; animation-delay: -5s; }
  .sun-rays { transform-origin: 474px 88px; animation: spin 48s linear infinite; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
  .btn:hover,
  .gtile:hover { transform: none; }
}