/* Responsive refinements; loaded after the original design system. */
@media (max-width: 820px) {
  html { scroll-padding-top: 74px; }
  .nav-wrap { height: 72px; padding-inline: clamp(18px, 5.6vw, 30px); }
  .menu-toggle {
    display: flex;
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 0;
    cursor: pointer;
  }
  .menu-toggle span:not(.sr-only) { display: block; width: 21px; height: 1px; background: var(--navy); }
  #primary-nav {
    display: none;
    position: absolute;
    inset: 71px 0 auto;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    padding: 10px clamp(22px, 6vw, 44px) 22px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 24px #10283d16;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  #primary-nav.is-open { display: flex; }
  #primary-nav > a { padding: 13px 0; font-size: 13px; border-bottom: 1px solid #e6e7e0; }
  .hero {
    min-height: auto;
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    padding: clamp(50px, 8vw, 68px) clamp(22px, 7vw, 54px) 72px;
  }
  .hero-copy, .hero-copy > * { min-width: 0; }
  .hero h1 { font-size: clamp(40px, 11.5vw, 76px); line-height: 1.02; letter-spacing: -.072em; }
  .hero .lead, .page-hero .lead { font-size: 16px; }
  .hero-art { width: 100%; max-width: 450px; height: 310px; justify-self: center; transform: scale(.78); transform-origin: center; margin: -4px auto -25px; }
  .hero-bottom { left: clamp(22px, 7vw, 54px); right: clamp(22px, 7vw, 54px); bottom: 20px; gap: 10px; font-size: 8px; }
  .section { padding: 64px clamp(22px, 7vw, 54px); }
  .intro-section { padding-top: 60px; padding-bottom: 76px; }
  .intro-grid, .story-grid, .approach-teaser, .teacher-section, .enquiry-section,
  .outcomes-section, .trial-content, .contact-section, .teacher-profile {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }
  .intro-grid { margin-top: 34px; }
  .section-heading { display: block; margin: 34px 0 26px; }
  .section-heading > p { margin-top: 14px; }
  .grade-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .approach-teaser { min-height: 0; padding-block: 64px; }
  .teaser-art { order: 2; min-height: 280px; }
  .teacher-section { gap: 28px; }
  .teacher-photo { min-height: 320px; }
  .trial-band { padding: 52px clamp(22px, 7vw, 54px); }
  .page-hero { min-height: 350px; padding: 68px clamp(22px, 7vw, 54px) 68px; }
  .page-hero h1 { max-width: 100%; font-size: clamp(42px, 12vw, 78px); line-height: 1; letter-spacing: -.07em; }
  .page-hero:after { right: -65px; font-size: 250px; }
  .page-hero-mark { right: clamp(22px, 7vw, 54px); }
  .steps-grid { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .step-card { min-height: 0; }
  .outcomes-section { padding: 54px clamp(22px, 7vw, 54px); }
  .programme-row { grid-template-columns: 58px minmax(0, 1fr) 42px; gap: 14px; }
  .programme-row > p { grid-column: 2 / 4; grid-row: 2; margin-top: -4px; }
  .programme-row h2 { font-size: clamp(22px, 5vw, 28px); }
  .programme-level strong { font-size: 50px; }
  .small-class-band { grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 52px clamp(22px, 7vw, 54px); }
  .schedule-notice { grid-template-columns: 54px minmax(0, 1fr); gap: 16px; margin: 42px auto 32px; }
  .schedule-notice h2 { font-size: clamp(34px, 8vw, 44px); }
  .schedule-levels { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 0; }
  .schedule-levels span { padding: 8px 4px; }
  .schedule-levels span + span { border: 0; }
  .schedule-levels span:nth-child(even) { border-left: 1px solid #d9dcd3; }
  .teacher-profile { gap: 30px; }
  .large-photo { min-height: 360px; }
  .contact-form-wrap { min-width: 0; padding: clamp(22px, 5vw, 36px); }
  .contact-form-wrap input, .contact-form-wrap select, .contact-form-wrap textarea { min-width: 0; max-width: 100%; }
  .privacy-section { padding-top: 48px; padding-bottom: 68px; }
  .footer-main { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; padding: 44px 0 32px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { min-height: 0; padding: 15px 0; align-items: flex-start; flex-direction: column; gap: 8px; }
  .section-label { flex-wrap: wrap; gap: 8px 18px; }
  .button-row { align-items: flex-start; }
}

@media (max-width: 420px) {
  body { font-size: 15px; }
  .hero { padding: 48px 22px 70px; }
  .hero h1 { font-size: clamp(39px, 11.1vw, 46px); }
  .hero .lead { font-size: 15px; line-height: 1.68; }
  .button-row { flex-direction: column; align-items: stretch; gap: 9px; margin-top: 23px; }
  .button-row .button { width: 100%; }
  .hero-art { height: 264px; transform: scale(.66); margin: -8px -26px -34px; width: calc(100% + 52px); max-width: none; }
  .card-leaf { top: 8px; left: 1%; }
  .card-drop { top: 106px; right: 1%; }
  .card-atom { bottom: 0; left: 1%; }
  .art-caption { right: 0; bottom: -8px; max-width: 95px; font-size: 15px; }
  .hero-bottom { font-size: 7px; letter-spacing: .1em; gap: 8px; }
  .section { padding: 54px 22px; }
  .intro-section { padding-top: 50px; padding-bottom: 62px; }
  .section h2, .center-cta h2, .outcomes-title h2, .contact-info h2,
  .teacher-copy h2, .teacher-bio h2, .trial-intro h2 { font-size: clamp(36px, 10vw, 44px); }
  .body-large { font-size: 17px; }
  .grade-card { min-height: 180px; padding: 17px 14px; }
  .grade-card h3 { font-size: 19px; margin-top: 22px; }
  .grade-index { top: 14px; right: 13px; }
  .grade-pill { font-size: 8px; padding: 5px 8px; }
  .teaser-art { min-height: 245px; }
  .teaser-art:before { width: 290px; height: 290px; }
  .teaser-art:after { width: 220px; height: 220px; }
  .teaser-circle { width: 165px; height: 165px; }
  .teacher-photo { min-height: 285px; }
  .photo-shape { transform: scale(.84); }
  .trial-band { padding: 44px 22px; }
  .trial-band h2 { font-size: 38px; }
  .page-hero { min-height: 320px; padding: 56px 22px 60px; }
  .page-hero h1 { font-size: clamp(40px, 12.5vw, 49px); overflow-wrap: normal; }
  .page-hero .lead { font-size: 15px; }
  .page-hero-mark { right: 22px; bottom: 18px; font-size: 8px; }
  .programme-row { grid-template-columns: 48px minmax(0, 1fr) 36px; gap: 10px; padding: 22px 0; }
  .programme-row h2 { font-size: 21px; }
  .programme-row .eyebrow { font-size: 8px; letter-spacing: .12em; }
  .programme-level { font-size: 10px; }
  .programme-level strong { font-size: 44px; }
  .circle-link { width: 36px; height: 36px; }
  .schedule-notice { grid-template-columns: minmax(0, 1fr); }
  .notice-icon { width: 46px; height: 46px; }
  .schedule-levels { font-size: 11px; }
  .contact-form-wrap { padding: 22px 17px; }
  .contact-item > a { overflow-wrap: anywhere; }
  .center-cta { padding: 56px 22px; }
  .footer-main { gap: 24px 14px; }
  .footer-col a, .footer-address address { overflow-wrap: anywhere; }
  .review-tag { display: inline-block; margin: 5px 0 0; }
}

@media (max-width: 340px) {
  .brand-name { font-size: 16px; }
  .nav-wrap { padding-inline: 16px; }
  .hero h1 { font-size: 38px; }
  .hero-bottom { font-size: 6px; gap: 6px; }
  .grade-grid { gap: 8px; }
  .grade-card { padding-inline: 11px; }
  .footer-main { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}