/* Public MyHome introduction — isolated from the signed-in application shell. */
body[data-page="about"] .topbar,
body[data-page="about"] .sidebar,
body[data-page="about"] .tabbar,
body[data-page="about"] #lightbox,
body[data-page="experience"] .topbar,
body[data-page="experience"] .sidebar,
body[data-page="experience"] .tabbar,
body[data-page="experience"] #lightbox {
  display: none !important;
}

body[data-page="about"],
body[data-page="experience"] {
  margin: 0;
  padding: 0;
}

body[data-page="about"] { background: #f7f5f0; }

body[data-page="experience"] { background: var(--bg); }

body[data-page="about"] .content,
body[data-page="experience"] .content {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
}

.promo-page {
  --promo-bg: #f7f5f0;
  --promo-surface: #ffffff;
  --promo-ink: #17213b;
  --promo-copy: #59637a;
  --promo-line: #e4e8f0;
  --promo-blue: #526f65;
  --promo-blue-dark: #38564c;
  --promo-lilac: #edf2ee;
  --promo-mint: #daf5eb;
  --promo-peach: #ffeadc;
  --promo-shadow: 0 22px 54px rgba(46, 63, 57, 0.10);
  min-height: 100vh;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 8%, rgba(112, 143, 129, 0.12), transparent 28rem),
    radial-gradient(circle at 94% 23%, rgba(207, 170, 113, 0.10), transparent 25rem),
    var(--promo-bg);
  color: var(--promo-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "Noto Sans KR", "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  .promo-page {
    --promo-bg: #0d1220;
    --promo-surface: #171e30;
    --promo-ink: #f4f6fb;
    --promo-copy: #aeb8ce;
    --promo-line: #2a344b;
    --promo-blue: #8493ff;
    --promo-blue-dark: #6678f0;
    --promo-lilac: #202947;
    --promo-mint: #173a35;
    --promo-peach: #3a2a25;
    --promo-shadow: 0 28px 70px rgba(0, 0, 0, 0.35);
  }
}

html[data-theme="light"] .promo-page {
  --promo-bg: #f7f5f0;
  --promo-surface: #ffffff;
  --promo-ink: #17213b;
  --promo-copy: #59637a;
  --promo-line: #e4e8f0;
  --promo-blue: #526f65;
  --promo-blue-dark: #38564c;
  --promo-lilac: #edf2ee;
  --promo-mint: #daf5eb;
  --promo-peach: #ffeadc;
  --promo-shadow: 0 22px 54px rgba(46, 63, 57, 0.10);
}

html[data-theme="dark"] .promo-page {
  --promo-bg: #0d1220;
  --promo-surface: #171e30;
  --promo-ink: #f4f6fb;
  --promo-copy: #aeb8ce;
  --promo-line: #2a344b;
  --promo-blue: #8493ff;
  --promo-blue-dark: #6678f0;
  --promo-lilac: #202947;
  --promo-mint: #173a35;
  --promo-peach: #3a2a25;
  --promo-shadow: 0 28px 70px rgba(0, 0, 0, 0.35);
}

.promo-page *,
.promo-page *::before,
.promo-page *::after { box-sizing: border-box; }

.promo-page a:focus-visible {
  outline: 3px solid var(--promo-blue);
  outline-offset: 4px;
}

.promo-page h1,
.promo-page h2,
.promo-page h3,
.experience-shell h1,
.experience-shell h2 {
  text-wrap: balance;
}

.promo-nav {
  position: relative;
  z-index: 10;
  width: min(1180px, calc(100% - 40px));
  height: 84px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
}

.promo-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--promo-ink);
  font-size: 1.05rem;
  font-weight: 850;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.promo-brand:hover { text-decoration: none; }

.promo-brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: var(--promo-blue);
  color: white;
  font-size: 0.95rem;
  font-weight: 900;
  box-shadow: 0 9px 24px rgba(82, 104, 232, 0.24);
}

.promo-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}

.promo-nav-links a {
  color: var(--promo-copy);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.promo-nav-links a:hover { color: var(--promo-ink); text-decoration: none; }

.promo-nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid var(--promo-line);
  border-radius: 999px;
  background: var(--promo-surface);
  color: var(--promo-ink);
  font-size: 0.9rem;
  font-weight: 750;
  text-decoration: none;
  box-shadow: 0 6px 16px rgba(30, 43, 91, 0.06);
}

.promo-nav-cta:hover { border-color: var(--promo-blue); text-decoration: none; }

.promo-hero {
  position: relative;
  width: min(1180px, calc(100% - 40px));
  min-height: 650px;
  margin: 0 auto;
  padding: 72px 0 88px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(520px, 1.1fr);
  align-items: center;
  gap: 70px;
}

.promo-hero::before {
  content: "";
  position: absolute;
  width: 330px;
  height: 330px;
  left: -260px;
  bottom: -80px;
  border: 1px solid rgba(82, 104, 232, 0.14);
  border-radius: 50%;
  box-shadow: 0 0 0 80px rgba(82, 104, 232, 0.025), 0 0 0 160px rgba(82, 104, 232, 0.02);
  pointer-events: none;
}

.promo-hero-copy { position: relative; z-index: 2; }

.promo-kicker {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 20px;
  color: var(--promo-blue-dark);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.promo-kicker span {
  width: 27px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.promo-hero h1 {
  margin: 0;
  color: var(--promo-ink);
  font-size: clamp(2.45rem, 4.6vw, 4.25rem);
  line-height: 1.12;
  letter-spacing: -0.065em;
  word-break: keep-all;
}

.promo-hero h1 em {
  color: var(--promo-blue);
  font-style: normal;
}

.promo-lead {
  max-width: 590px;
  margin: 28px 0 0;
  color: var(--promo-copy);
  font-size: 1.06rem;
  line-height: 1.85;
  word-break: keep-all;
}

.promo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.promo-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 14px;
  font-size: 0.96rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.promo-btn:hover { transform: translateY(-2px); text-decoration: none; }
.promo-btn.primary { background: var(--promo-blue); color: white; box-shadow: 0 14px 30px rgba(82, 104, 232, 0.25); }
.promo-btn.primary:hover { background: var(--promo-blue-dark); }
.promo-btn.secondary { border-color: var(--promo-line); background: var(--promo-surface); color: var(--promo-ink); }
.promo-btn.secondary:hover { border-color: var(--promo-blue); }
.promo-btn.light { min-width: 190px; background: white; color: #3449c3; box-shadow: 0 14px 36px rgba(24, 37, 111, 0.24); }

.promo-trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 24px 0 0;
  padding: 0;
  color: var(--promo-copy);
  font-size: 0.82rem;
  list-style: none;
}

.promo-trust-list li { display: flex; align-items: center; gap: 6px; }
.promo-trust-list li span { color: #209271; font-weight: 900; }

.promo-product {
  position: relative;
  z-index: 2;
  width: 110%;
  justify-self: start;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 24px;
  background: var(--promo-surface);
  box-shadow: var(--promo-shadow);
  transform: perspective(1300px) rotateY(-4deg) rotateX(1deg);
}

.promo-window-bar {
  height: 44px;
  padding: 0 15px;
  display: flex;
  align-items: center;
  gap: 7px;
  border-bottom: 1px solid var(--promo-line);
}

.promo-window-bar span { width: 8px; height: 8px; border-radius: 50%; background: #d4d9e4; }
.promo-window-bar span:first-child { background: #ff9585; }
.promo-window-bar span:nth-child(2) { background: #ffd274; }
.promo-window-bar span:nth-child(3) { background: #75d7ae; }
.promo-window-bar b { margin: 0 auto; padding-right: 43px; color: var(--promo-copy); font-size: 0.7rem; letter-spacing: 0.04em; }

.promo-app-shell { min-height: 420px; display: grid; grid-template-columns: 58px 1fr; overflow: hidden; border-radius: 0 0 24px 24px; }
.promo-mini-side { padding: 18px 13px; display: flex; flex-direction: column; align-items: center; gap: 17px; background: #29375f; }
.promo-mini-logo { display: grid; place-items: center; width: 30px; height: 30px; margin-bottom: 9px; border-radius: 9px; background: #7284ff; color: white; font-size: 0.7rem; font-style: normal; font-weight: 900; }
.promo-mini-side i { width: 24px; height: 6px; border-radius: 8px; background: rgba(255, 255, 255, 0.22); }
.promo-mini-side i.active { height: 24px; background: rgba(132, 147, 255, 0.95); box-shadow: inset 0 0 0 7px #5268e8; }
.promo-mini-avatar { width: 24px; height: 24px; margin-top: auto; border-radius: 50%; background: #f8c6a4; }
.promo-mini-main { padding: 25px 24px 23px; background: color-mix(in srgb, var(--promo-bg) 62%, var(--promo-surface)); }
.promo-mini-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.promo-mini-head div { display: flex; flex-direction: column; }
.promo-mini-head small { color: var(--promo-copy); font-size: 0.58rem; }
.promo-mini-head strong { margin-top: 3px; color: var(--promo-ink); font-size: 1rem; letter-spacing: -0.03em; }
.promo-mini-head > span { padding: 5px 9px; border-radius: 999px; background: var(--promo-mint); color: #16745b; font-size: 0.55rem; font-weight: 800; }
.promo-metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin-top: 18px; }
.promo-metric-row > div { padding: 12px; display: flex; flex-direction: column; border: 1px solid var(--promo-line); border-radius: 12px; background: var(--promo-surface); }
.promo-metric-row small { color: var(--promo-copy); font-size: 0.55rem; }
.promo-metric-row b { margin-top: 5px; color: var(--promo-ink); font-size: 1.25rem; }
.promo-metric-row b em { margin-left: 2px; color: var(--promo-copy); font-size: 0.55rem; font-style: normal; font-weight: 650; }
.promo-mini-grid { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 10px; margin-top: 10px; }
.promo-mini-grid > section { margin: 0; padding: 14px; min-width: 0; border: 1px solid var(--promo-line); border-radius: 13px; background: var(--promo-surface); }
.promo-card-head { display: flex; align-items: center; justify-content: space-between; color: var(--promo-copy); font-size: 0.58rem; }
.promo-card-head b { color: var(--promo-ink); font-size: 0.68rem; }
.promo-card-head > span { color: var(--promo-blue); font-weight: 800; }
.promo-progress { height: 4px; margin: 10px 0 12px; overflow: hidden; border-radius: 4px; background: var(--promo-line); }
.promo-progress i { display: block; width: 60%; height: 100%; border-radius: inherit; background: var(--promo-blue); }
.promo-task-list { display: flex; flex-direction: column; gap: 9px; margin: 0; padding: 0; list-style: none; }
.promo-task-list li { display: flex; align-items: center; gap: 8px; }
.promo-task-list li > span { flex: 0 0 auto; width: 17px; height: 17px; display: grid; place-items: center; border: 1px solid var(--promo-line); border-radius: 6px; color: white; font-size: 0.55rem; }
.promo-task-list li.done > span { border-color: var(--promo-blue); background: var(--promo-blue); }
.promo-task-list p { display: flex; min-width: 0; flex-direction: column; margin: 0; }
.promo-task-list b { color: var(--promo-ink); font-size: 0.58rem; white-space: nowrap; }
.promo-task-list small { color: var(--promo-copy); font-size: 0.49rem; }
.promo-chart { height: 108px; padding-top: 12px; display: flex; align-items: flex-end; gap: 7px; }
.promo-chart i { flex: 1; min-width: 5px; border-radius: 4px 4px 2px 2px; background: #dce1f3; }
.promo-chart .h4 { height: 40%; }.promo-chart .h5 { height: 50%; }.promo-chart .h6 { height: 60%; }.promo-chart .h7 { height: 70%; }.promo-chart .h8 { height: 80%; }.promo-chart .h9 { height: 90%; }.promo-chart .h10 { height: 100%; }
.promo-chart i.today { background: var(--promo-blue); }
.promo-chart-labels { display: flex; justify-content: space-between; gap: 3px; color: var(--promo-copy); font-size: 0.43rem; }
.promo-float-card { position: absolute; display: flex; align-items: center; gap: 9px; padding: 10px 13px; border: 1px solid rgba(255,255,255,0.75); border-radius: 13px; background: var(--promo-surface); box-shadow: 0 14px 36px rgba(30,43,91,0.15); transform: rotateY(4deg); }
.promo-float-card.left { left: -42px; bottom: 42px; }
.promo-float-card.right { right: -48px; top: 96px; }
.promo-float-card > span { display: grid; place-items: center; width: 29px; height: 29px; border-radius: 9px; background: var(--promo-lilac); color: var(--promo-blue); font-size: 0.7rem; font-weight: 900; }
.promo-float-card.right > span { background: var(--promo-mint); color: #16745b; }
.promo-float-card p { display: flex; flex-direction: column; margin: 0; }
.promo-float-card b { color: var(--promo-ink); font-size: 0.65rem; }
.promo-float-card small { color: var(--promo-copy); font-size: 0.52rem; }

.promo-section { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 110px 0; scroll-margin-top: 20px; }
.promo-section-heading { max-width: 700px; margin: 0 auto 48px; text-align: center; }
.promo-section-heading.align-left { max-width: 760px; margin-left: 0; text-align: left; }
.promo-section-heading > p, .promo-trust-copy > p, .promo-final > p { margin: 0 0 12px; color: var(--promo-blue); font-size: 0.74rem; font-weight: 850; letter-spacing: 0.15em; }
.promo-section-heading h2, .promo-trust-copy h2, .promo-final h2 { margin: 0; color: var(--promo-ink); font-size: clamp(2rem, 3.6vw, 3.25rem); line-height: 1.22; letter-spacing: -0.055em; word-break: keep-all; }
.promo-section-heading > span { display: block; margin-top: 18px; color: var(--promo-copy); line-height: 1.75; word-break: keep-all; }

.promo-role-section { padding-top: 125px; }
.promo-role-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.promo-role-grid article { position: relative; min-height: 360px; padding: 28px 24px 24px; overflow: hidden; border: 1px solid var(--promo-line); border-radius: 22px; background: var(--promo-surface); box-shadow: 0 12px 30px rgba(30,43,91,0.045); }
.promo-role-grid article::after { content: ""; position: absolute; right: -35px; bottom: -45px; width: 135px; height: 135px; border-radius: 50%; background: var(--promo-lilac); opacity: 0.85; }
.promo-role-grid article.parent::after { background: var(--promo-mint); }
.promo-role-grid article.teacher::after { background: var(--promo-peach); }
.promo-role-grid article.family::after { background: #f3e8ff; }
.promo-role-grid article.admin::after { background: color-mix(in srgb, #64748b 22%, var(--promo-surface)); }
.promo-role-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 13px; background: var(--promo-lilac); color: var(--promo-blue); font-size: 0.72rem; font-weight: 900; }
.promo-role-grid article.parent .promo-role-icon { background: var(--promo-mint); color: #16745b; }
.promo-role-grid article.teacher .promo-role-icon { background: var(--promo-peach); color: #bd5c25; }
.promo-role-grid article.family .promo-role-icon { background: #f3e8ff; color: #7b41bc; }
.promo-role-grid article.admin .promo-role-icon { background: color-mix(in srgb, #64748b 22%, var(--promo-surface)); color: var(--promo-ink); }
.promo-role-grid article > p { margin: 24px 0 7px; color: var(--promo-copy); font-size: 0.65rem; font-weight: 850; letter-spacing: 0.12em; }
.promo-role-grid h3 { margin: 0; color: var(--promo-ink); font-size: 1.18rem; line-height: 1.4; letter-spacing: -0.035em; word-break: keep-all; }
.promo-role-grid article > span { display: block; margin-top: 13px; color: var(--promo-copy); font-size: 0.88rem; line-height: 1.7; word-break: keep-all; }
.promo-role-grid ul { position: relative; z-index: 1; margin: 20px 0 0; padding: 0; color: var(--promo-ink); font-size: 0.8rem; list-style: none; }
.promo-role-grid li { margin-top: 8px; }
.promo-role-grid li::before { content: "·"; margin-right: 8px; color: var(--promo-blue); font-weight: 900; }

.promo-feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.promo-feature { position: relative; min-height: 355px; padding: 34px; overflow: hidden; border: 1px solid var(--promo-line); border-radius: 26px; background: var(--promo-surface); }
.promo-feature.large { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 24px; align-items: center; }
.promo-feature h3 { margin: 12px 0 0; color: var(--promo-ink); font-size: clamp(1.45rem, 2.3vw, 2rem); line-height: 1.35; letter-spacing: -0.045em; word-break: keep-all; }
.promo-feature p { max-width: 430px; margin: 14px 0 0; color: var(--promo-copy); font-size: 0.91rem; line-height: 1.75; word-break: keep-all; }
.promo-feature-label { color: var(--promo-blue); font-size: 0.72rem; font-weight: 850; letter-spacing: 0.08em; }
.promo-feature.memory { background: linear-gradient(145deg, var(--promo-surface), var(--promo-lilac)); }
.promo-feature.planning { background: linear-gradient(145deg, var(--promo-surface), var(--promo-mint)); }
.promo-photo-stack { position: relative; min-height: 250px; }
.promo-photo-stack i { position: absolute; width: 145px; height: 190px; border: 7px solid white; border-radius: 16px; box-shadow: 0 14px 28px rgba(32,43,91,0.16); background: linear-gradient(150deg, #8fa7df 0 45%, #ead19e 45% 62%, #6ca99b 62%); transform: rotate(-9deg); }
.promo-photo-stack i:nth-child(2) { left: 70px; top: 22px; z-index: 2; background: linear-gradient(155deg, #efc6a5 0 44%, #8ab3ca 44% 61%, #516e93 61%); transform: rotate(5deg); }
.promo-photo-stack i:nth-child(3) { left: 130px; top: 5px; z-index: 1; background: linear-gradient(160deg, #adcae4 0 50%, #f0d9b5 50% 67%, #7ea27d 67%); transform: rotate(12deg); }
.promo-photo-stack div { position: absolute; z-index: 4; right: -4px; bottom: 2px; padding: 10px 13px; display: flex; flex-direction: column; border-radius: 12px; background: var(--promo-surface); box-shadow: 0 10px 30px rgba(32,43,91,0.14); }
.promo-photo-stack b { color: var(--promo-ink); font-size: 0.72rem; }.promo-photo-stack small { color: var(--promo-copy); font-size: 0.58rem; }
.promo-word-card { width: min(330px, 86%); min-height: 160px; margin: 30px auto 0; padding: 22px; display: flex; flex-direction: column; justify-content: center; border-radius: 20px; background: var(--promo-lilac); box-shadow: 0 16px 32px rgba(82,104,232,0.12); text-align: center; transform: rotate(-2deg); }
.promo-word-card small { color: var(--promo-copy); font-size: 0.68rem; }.promo-word-card b { margin-top: 14px; color: var(--promo-blue); font-family: Georgia, serif; font-size: 2rem; }.promo-word-card span { margin-top: 8px; color: var(--promo-ink); font-size: 0.86rem; }
.promo-answer-dots { display: flex; gap: 10px; margin-top: 36px; }
.promo-answer-dots i { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--promo-line); border-radius: 50%; color: var(--promo-copy); font-size: 0.78rem; font-style: normal; font-weight: 750; }
.promo-answer-dots i.ok { border-color: #4bc39c; background: var(--promo-mint); color: #16745b; }.promo-answer-dots i.no { border-color: #f19a85; background: #fff0ec; color: #bd4c34; }
.promo-paper { width: 220px; min-height: 275px; justify-self: center; padding: 24px; border: 1px solid var(--promo-line); border-radius: 6px 6px 18px 6px; background: var(--promo-surface); box-shadow: 15px 16px 0 color-mix(in srgb, var(--promo-surface) 75%, var(--promo-line)), 0 18px 36px rgba(30,43,91,0.12); transform: rotate(2deg); }
.promo-paper > span { color: var(--promo-ink); font-family: Georgia, serif; font-size: 1.1rem; font-weight: 800; }.promo-paper i { display: block; width: 100%; height: 2px; margin-top: 30px; background: #aebbe0; transform: rotate(-1deg); }.promo-paper i.short { width: 70%; }.promo-paper i.check { width: 22px; height: 10px; margin-left: auto; border: solid #43aa87; border-width: 0 0 2px 2px; background: transparent; transform: rotate(-45deg); }.promo-paper b { display: block; margin-top: 26px; color: var(--promo-blue); font-size: 0.7rem; }

.promo-trust { width: 100%; max-width: none; padding: 110px max(20px, calc((100% - 1180px) / 2)); display: grid; grid-template-columns: 0.78fr 1.22fr; gap: 90px; align-items: center; background: #17213b; color: white; }
.promo-trust-copy > p { color: #9aa8ff; }.promo-trust-copy h2 { color: white; }.promo-trust-copy > span { display: block; margin-top: 24px; color: #b8c1d6; line-height: 1.85; word-break: keep-all; }
.promo-trust-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }.promo-trust-pills b { padding: 7px 11px; border: 1px solid rgba(255,255,255,0.14); border-radius: 999px; color: #d7ddec; font-size: 0.72rem; font-weight: 650; }
.promo-trust-panel { overflow: hidden; border: 1px solid rgba(255,255,255,0.13); border-radius: 24px; background: rgba(255,255,255,0.045); }
.promo-trust-panel article { padding: 25px 27px; display: grid; grid-template-columns: 42px 1fr; gap: 16px; border-bottom: 1px solid rgba(255,255,255,0.11); }.promo-trust-panel article:last-child { border-bottom: 0; }.promo-trust-panel article > span { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; background: rgba(132,147,255,0.18); color: #aab5ff; font-size: 0.66rem; font-weight: 900; }.promo-trust-panel h3 { margin: 0; color: white; font-size: 1rem; }.promo-trust-panel p { margin: 7px 0 0; color: #adb7cc; font-size: 0.86rem; line-height: 1.65; }

.promo-experience { padding-top: 125px; }
.promo-experience-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.promo-experience-grid a { min-height: 190px; padding: 30px 25px; display: flex; align-items: flex-start; flex-direction: column; border: 1px solid var(--promo-line); border-radius: 22px; background: var(--promo-surface); color: var(--promo-ink); text-decoration: none; box-shadow: 0 12px 30px rgba(30,43,91,0.05); transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease; }
.promo-experience-grid a:hover { border-color: var(--promo-blue); box-shadow: 0 18px 40px rgba(30,43,91,0.1); transform: translateY(-3px); text-decoration: none; }
.promo-experience-grid a > span { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 15px; background: var(--promo-lilac); font-size: 1.45rem; }
.promo-experience-grid a:nth-child(2) > span { background: var(--promo-mint); }
.promo-experience-grid a:nth-child(3) > span { background: var(--promo-peach); }
.promo-experience-grid a:nth-child(4) > span { background: #f3e8ff; }
.promo-experience-grid a:nth-child(5) > span { background: color-mix(in srgb, #64748b 22%, var(--promo-surface)); }
.promo-experience-grid strong { margin-top: 22px; font-size: 1.05rem; letter-spacing: -0.025em; }
.promo-experience-grid small { margin-top: 8px; color: var(--promo-copy); font-size: 0.82rem; }

.promo-final { width: min(1180px, calc(100% - 40px)); margin: 110px auto 70px; padding: 82px 30px; border-radius: 32px; background: linear-gradient(130deg, #5268e8, #6c5bd5); text-align: center; box-shadow: 0 28px 70px rgba(82,104,232,0.24); }.promo-final > p { color: #d9ddff; }.promo-final h2 { color: white; }.promo-final .promo-btn { margin-top: 30px; }
.promo-footer { width: min(1180px, calc(100% - 40px)); min-height: 100px; margin: 0 auto; padding: 24px 0 34px; display: flex; align-items: center; gap: 22px; border-top: 1px solid var(--promo-line); }.promo-footer p { margin: 0; color: var(--promo-copy); font-size: 0.8rem; }.promo-footer > a:last-child { margin-left: auto; color: var(--promo-copy); font-size: 0.82rem; font-weight: 650; }

/* Public, read-only sample spaces. */
.experience-shell {
  --experience-bg: var(--bg);
  --experience-surface: var(--surface);
  --experience-ink: var(--text);
  --experience-copy: var(--muted);
  --experience-line: var(--border);
  --experience-accent: var(--primary);
  width: min(1100px, calc(100% - 40px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 34px 0 55px;
  color: var(--experience-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "Noto Sans KR", "Segoe UI", sans-serif;
}
.experience-shell *, .experience-shell *::before, .experience-shell *::after { box-sizing: border-box; }
.experience-shell a:focus-visible {
  outline: 3px solid var(--experience-accent);
  outline-offset: 3px;
}
.experience-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 28px; }
.experience-head .back { display: inline-block; margin-bottom: 17px; color: var(--experience-copy); font-size: 0.86rem; font-weight: 700; text-decoration: none; }
.experience-head .back:hover { color: var(--experience-accent); }
.experience-head h1 { margin: 0; font-size: clamp(1.9rem, 4vw, 2.7rem); letter-spacing: -0.055em; }
.experience-head p { max-width: 720px; margin: 13px 0 0; color: var(--experience-copy); line-height: 1.7; word-break: keep-all; }
.experience-sample-badge { flex: 0 0 auto; margin-top: 34px; padding: 8px 12px; border: 1px solid #f2c870; border-radius: 999px; background: #fff8dc; color: #8a5a00; font-size: 0.68rem; font-weight: 900; letter-spacing: 0.09em; }
.experience-role-tabs { margin: 30px 0 20px; padding: 5px; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 5px; border: 1px solid var(--experience-line); border-radius: 15px; background: color-mix(in srgb, var(--experience-line) 62%, var(--experience-bg)); }
.experience-role-tabs a { min-height: 44px; display: flex; align-items: center; justify-content: center; gap: 6px; border-radius: 11px; color: var(--experience-copy); font-size: 0.9rem; font-weight: 750; text-decoration: none; touch-action: manipulation; }
.experience-role-tabs a:hover { background: color-mix(in srgb, var(--experience-surface) 55%, transparent); color: var(--experience-ink); }
.experience-role-tabs a[aria-current="page"] { background: var(--experience-surface); color: var(--experience-ink); box-shadow: 0 4px 14px rgba(26,38,78,0.09); }
.experience-hero-card { min-height: 210px; padding: 34px; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 30px; overflow: hidden; border: 1px solid color-mix(in srgb, var(--experience-accent) 20%, var(--experience-line)); border-radius: 25px; background: linear-gradient(135deg, color-mix(in srgb, var(--experience-accent) 13%, var(--experience-surface)), var(--experience-surface)); }
.experience-hero-card.parent { border-color: color-mix(in srgb, #1c9a71 25%, var(--experience-line)); background: linear-gradient(135deg, color-mix(in srgb, #27b889 16%, var(--experience-surface)), var(--experience-surface)); }
.experience-hero-card.student { border-color: color-mix(in srgb, #dd7c41 25%, var(--experience-line)); background: linear-gradient(135deg, color-mix(in srgb, #ef8f54 16%, var(--experience-surface)), var(--experience-surface)); }
.experience-hero-card.teacher { border-color: color-mix(in srgb, #8a5ad7 25%, var(--experience-line)); background: linear-gradient(135deg, color-mix(in srgb, #9b72de 15%, var(--experience-surface)), var(--experience-surface)); }
.experience-hero-card.admin { border-color: color-mix(in srgb, #47617f 28%, var(--experience-line)); background: linear-gradient(135deg, color-mix(in srgb, #5b7694 16%, var(--experience-surface)), var(--experience-surface)); }
.experience-hero-card small { color: var(--experience-accent); font-weight: 850; letter-spacing: 0.04em; }
.experience-hero-card h2 { max-width: 620px; margin: 8px 0 0; font-size: clamp(1.45rem, 3vw, 2.1rem); line-height: 1.35; letter-spacing: -0.045em; word-break: keep-all; }
.experience-hero-card p { margin: 12px 0 0; color: var(--experience-copy); line-height: 1.65; word-break: keep-all; }
.experience-metrics { display: flex; gap: 10px; }
.experience-metrics span { min-width: 86px; padding: 16px 12px; display: flex; align-items: center; flex-direction: column; border: 1px solid var(--experience-line); border-radius: 15px; background: color-mix(in srgb, var(--experience-surface) 78%, transparent); color: var(--experience-copy); font-size: 0.72rem; }
.experience-metrics b { margin-bottom: 4px; color: var(--experience-ink); font-size: 1.25rem; }
.experience-panel { margin-top: 18px; padding: 25px; border: 1px solid var(--experience-line); border-radius: 21px; background: var(--experience-surface); box-shadow: 0 9px 25px rgba(27,38,76,0.045); }
.experience-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 19px; }
.experience-panel-head h2 { margin: 0; font-size: 1.08rem; letter-spacing: -0.025em; }
.experience-panel-head > span { color: var(--experience-copy); font-size: 0.75rem; text-align: right; }
.experience-photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
.experience-photo-grid figure { margin: 0; overflow: hidden; border-radius: 15px; background: var(--experience-bg); }
.experience-photo-grid img { width: 100%; aspect-ratio: 4 / 3; display: block; object-fit: cover; }
.experience-photo-grid figcaption { padding: 11px 13px; font-size: 0.82rem; font-weight: 700; }
.experience-two-column { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.experience-list, .experience-checks { margin: 0; padding: 0; list-style: none; }
.experience-list li { padding: 13px 0; display: flex; align-items: center; gap: 12px; border-top: 1px solid var(--experience-line); }
.experience-list li:first-child { padding-top: 0; border-top: 0; }
.experience-list li > span { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 12px; background: var(--experience-bg); }
.experience-list li div { display: flex; flex-direction: column; gap: 4px; }
.experience-list small, .experience-story small { color: var(--experience-copy); }
.experience-story p { margin: 10px 0 17px; color: var(--experience-copy); line-height: 1.65; }
.experience-bars { height: 135px; padding: 12px 7px 0; display: flex; align-items: flex-end; gap: 9px; }
.experience-bars i { height: var(--h); flex: 1; border-radius: 7px 7px 3px 3px; background: linear-gradient(#8796f5, var(--experience-accent)); }
.experience-days { padding: 8px 5px 0; display: flex; justify-content: space-between; color: var(--experience-copy); font-size: 0.7rem; }
.experience-checks { display: flex; flex-direction: column; gap: 12px; }
.experience-checks li { position: relative; padding-left: 29px; color: var(--experience-ink); }
.experience-checks li::before { content: ""; position: absolute; left: 0; top: 0.05em; width: 18px; height: 18px; border: 2px solid #bcc5d6; border-radius: 6px; }
.experience-checks li.done { color: var(--experience-copy); text-decoration: line-through; }
.experience-checks li.done::before { content: "✓"; display: grid; place-items: center; border-color: var(--experience-accent); background: var(--experience-accent); color: white; font-size: 0.68rem; font-weight: 900; text-decoration: none; }
.experience-result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.experience-result-grid article { padding: 18px; display: flex; flex-direction: column; border-radius: 15px; background: var(--experience-bg); }
.experience-result-grid small, .experience-result-grid span { color: var(--experience-copy); }
.experience-result-grid b { margin: 11px 0 7px; font-size: 1.45rem; }
.experience-result-grid span { font-size: 0.74rem; }
.experience-progress { height: 7px; margin: -3px 0 19px; overflow: hidden; border-radius: 999px; background: var(--experience-line); }
.experience-progress i { height: 100%; display: block; border-radius: inherit; background: var(--experience-accent); }
.experience-word { min-height: 182px; display: flex; align-items: center; justify-content: center; flex-direction: column; border-radius: 16px; background: linear-gradient(145deg, color-mix(in srgb, var(--experience-accent) 11%, var(--experience-surface)), var(--experience-surface)); text-align: center; }
.experience-word small { color: var(--experience-copy); }
.experience-word b { margin: 15px 0 5px; font-size: 1.8rem; }
.experience-word span { color: var(--experience-copy); }
.experience-word button { margin-top: 17px; padding: 8px 13px; border: 1px solid var(--experience-line); border-radius: 9px; background: var(--experience-surface); color: var(--experience-copy); }
.experience-subject-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 11px; }
.experience-subject-grid article { min-height: 116px; padding: 16px; display: flex; flex-direction: column; border-radius: 15px; background: var(--experience-bg); }
.experience-subject-grid article > span { font-size: 1.35rem; }
.experience-subject-grid b { margin-top: 11px; }
.experience-subject-grid small { margin-top: 3px; color: var(--experience-copy); }
.experience-next-exam { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.experience-next-exam div { display: flex; flex-direction: column; gap: 6px; }
.experience-next-exam small { color: var(--experience-copy); }
.experience-next-exam > span { flex: 0 0 auto; padding: 8px 11px; border-radius: 9px; background: #fff1e8; color: #b65422; font-weight: 850; }
.experience-journey-steps { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; list-style: none; }
.experience-journey-steps li { position: relative; min-width: 0; padding: 12px 8px; border: 1px solid var(--experience-line); border-radius: 11px; color: var(--experience-copy); font-size: 0.8rem; font-weight: 750; text-align: center; }
.experience-journey-steps li.done { border-color: color-mix(in srgb, #1c9a71 45%, var(--experience-line)); color: #16745b; }
.experience-journey-steps li[aria-current="step"] { border-color: var(--experience-accent); background: color-mix(in srgb, var(--experience-accent) 12%, var(--experience-surface)); color: var(--experience-ink); }
.experience-session-row { margin-top: 17px; padding: 16px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-radius: 14px; background: var(--experience-bg); }
.experience-session-row > div, .experience-job-head > div { min-width: 0; display: flex; flex-direction: column; gap: 5px; }
.experience-session-row small, .experience-job-head small { color: var(--experience-copy); overflow-wrap: anywhere; }
.experience-sample-action { min-height: 40px; padding: 8px 13px; border: 1px solid var(--experience-line); border-radius: 10px; background: var(--experience-surface); color: var(--experience-copy); font: inherit; font-size: 0.78rem; font-weight: 700; }
.experience-sample-action:disabled { cursor: not-allowed; opacity: 0.72; }
.experience-hint-list { margin: 0; padding: 0; display: flex; flex-direction: column; gap: 9px; list-style: none; }
.experience-hint-list li { padding: 11px 13px; display: grid; grid-template-columns: 58px minmax(0, 1fr); gap: 11px; border-radius: 11px; background: var(--experience-bg); }
.experience-hint-list b { color: var(--experience-accent); font-size: 0.78rem; }
.experience-hint-list span { color: var(--experience-copy); font-size: 0.82rem; overflow-wrap: anywhere; }
.experience-after-submit { margin: 13px 0 0; color: var(--experience-copy); font-size: 0.84rem; line-height: 1.6; }
.experience-after-submit strong { color: var(--experience-ink); }
.experience-callout { padding: 18px; border: 1px solid color-mix(in srgb, var(--experience-accent) 24%, var(--experience-line)); border-radius: 15px; background: linear-gradient(145deg, color-mix(in srgb, var(--experience-accent) 10%, var(--experience-surface)), var(--experience-surface)); }
.experience-callout.compact { margin-top: 18px; padding: 15px 16px; }
.experience-callout > strong { color: var(--experience-ink); }
.experience-callout p { margin: 9px 0 0; color: var(--experience-copy); font-size: 0.86rem; line-height: 1.65; word-break: keep-all; }
.experience-callout ul { margin: 12px 0 0; padding-left: 20px; color: var(--experience-ink); font-size: 0.8rem; line-height: 1.65; }
.experience-callout .experience-sample-action { margin-top: 13px; }
.experience-intervention-list { margin: 0; padding: 0; display: flex; flex-direction: column; list-style: none; }
.experience-intervention-list li { padding: 12px 0; display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: start; gap: 12px; border-top: 1px solid var(--experience-line); }
.experience-intervention-list li:first-child { padding-top: 0; border-top: 0; }
.experience-intervention-list div { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.experience-intervention-list small { color: var(--experience-copy); overflow-wrap: anywhere; }
.experience-status { width: max-content; max-width: 100%; padding: 5px 8px; border-radius: 999px; background: var(--experience-bg); color: var(--experience-copy); font-size: 0.68rem; font-weight: 800; white-space: nowrap; }
.experience-status.help { background: color-mix(in srgb, #5b73e8 13%, var(--experience-surface)); color: #4c63c9; }
.experience-status.overdue { background: color-mix(in srgb, #d8644b 13%, var(--experience-surface)); color: #b34a35; }
.experience-status.stalled { background: color-mix(in srgb, #d79739 15%, var(--experience-surface)); color: #986416; }
.experience-status.review { background: color-mix(in srgb, #8a5ad7 13%, var(--experience-surface)); color: #7546be; }
.experience-status.approved { background: color-mix(in srgb, #1c9a71 13%, var(--experience-surface)); color: #16745b; }
.experience-status.hidden { background: color-mix(in srgb, #64748b 15%, var(--experience-surface)); color: var(--experience-copy); }
.experience-job-head { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.experience-job-head > span { flex: 0 0 auto; color: var(--experience-copy); font-variant-numeric: tabular-nums; font-size: 0.8rem; }
.experience-job-progress { width: 100%; height: 11px; margin: 15px 0 9px; accent-color: var(--experience-accent); }
.experience-chip-row { display: flex; flex-wrap: wrap; gap: 7px; }
.experience-chip-row span { padding: 5px 8px; border-radius: 999px; background: var(--experience-bg); color: var(--experience-copy); font-size: 0.7rem; font-variant-numeric: tabular-nums; }
.experience-action-notes { margin: 15px 0 0; padding-left: 20px; color: var(--experience-copy); font-size: 0.8rem; line-height: 1.65; }
.experience-review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.experience-review-grid article { min-width: 0; padding: 17px; display: flex; align-items: flex-start; flex-direction: column; border-radius: 15px; background: var(--experience-bg); }
.experience-review-grid article > b { margin-top: 13px; line-height: 1.45; overflow-wrap: anywhere; }
.experience-review-grid article > p { flex: 1; margin: 8px 0 14px; color: var(--experience-copy); font-size: 0.8rem; line-height: 1.6; }
.experience-review-grid .experience-sample-action { width: 100%; }
.experience-cta { margin-top: 24px; padding: 24px 26px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-radius: 20px; background: #202d4c; color: white; }
.experience-cta p { margin: 0; color: #ced6e7; }
.experience-cta .btn { flex: 0 0 auto; border-color: var(--experience-accent); background: var(--experience-accent); color: white; text-decoration: none; }

@media (max-width: 1050px) {
  .promo-hero { grid-template-columns: 1fr; gap: 65px; padding-top: 55px; }
  .promo-hero-copy { width: 100%; min-width: 0; max-width: 770px; text-align: center; justify-self: center; }
  .promo-kicker, .promo-actions, .promo-trust-list { justify-content: center; }
  .promo-lead { margin-left: auto; margin-right: auto; }
  .promo-product { width: min(760px, 92%); justify-self: center; transform: none; }
  .promo-float-card { transform: none; }
  .promo-role-grid { grid-template-columns: repeat(2, 1fr); }
  .promo-experience-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .promo-role-grid article { min-height: 320px; }
  .experience-hero-card { grid-template-columns: 1fr; }
  .experience-metrics { justify-content: flex-start; }
}

@media (max-width: 760px) {
  .promo-nav { width: min(100% - 28px, 1180px); height: 70px; gap: 14px; }
  .promo-nav-links { display: none; }
  .promo-nav-cta { margin-left: auto; min-height: 40px; padding: 0 15px; }
  .promo-hero { width: calc(100% - 28px); min-width: 0; min-height: auto; padding: 52px 0 78px; gap: 50px; }
  .promo-kicker { font-size: 0.72rem; }
  .promo-hero h1 { max-width: 100%; font-size: clamp(2rem, 8.7vw, 2.65rem); line-height: 1.16; overflow-wrap: break-word; }
  .promo-lead { max-width: 100%; font-size: 0.96rem; line-height: 1.75; word-break: normal; overflow-wrap: break-word; }
  .promo-actions { flex-direction: column; }
  .promo-btn { width: 100%; }
  .promo-trust-list { align-items: center; flex-direction: column; }
  .promo-product { width: 100%; }
  .promo-app-shell { min-height: 340px; grid-template-columns: 43px 1fr; }
  .promo-mini-side { padding: 13px 8px; gap: 14px; }
  .promo-mini-logo { width: 27px; height: 27px; }
  .promo-mini-side i { width: 19px; }
  .promo-mini-main { padding: 18px 13px; }
  .promo-metric-row { gap: 6px; }
  .promo-metric-row > div { padding: 9px 8px; }
  .promo-mini-grid { grid-template-columns: 1fr; }
  .promo-mini-grid > section:last-child { display: none; }
  .promo-float-card.right { right: -8px; top: 82px; }
  .promo-float-card.left { left: -8px; bottom: 24px; }
  .promo-section { width: min(100% - 28px, 1180px); padding: 82px 0; }
  .promo-role-section { padding-top: 95px; }
  .promo-section-heading { margin-bottom: 34px; }
  .promo-section-heading > span { font-size: 0.92rem; }
  .promo-role-grid, .promo-feature-grid { grid-template-columns: 1fr; }
  .promo-experience { padding-top: 92px; }
  .promo-experience-grid { grid-template-columns: 1fr; }
  .promo-experience-grid a { min-height: 0; padding: 24px 22px; }
  .promo-role-grid article { min-height: 0; padding: 25px 22px; }
  .promo-feature { min-height: 330px; padding: 27px 22px; }
  .promo-feature.large { grid-template-columns: 1fr; }
  .promo-feature.memory { min-height: 590px; }
  .promo-photo-stack { width: 285px; margin: 0 auto; }
  .promo-feature.planning { min-height: 650px; }
  .promo-paper { margin-top: 10px; }
  .promo-trust { padding: 82px 20px; grid-template-columns: 1fr; gap: 42px; }
  .promo-trust-panel article { padding: 21px 18px; grid-template-columns: 38px 1fr; gap: 12px; }
  .promo-final { width: calc(100% - 28px); margin: 80px auto 55px; padding: 58px 20px; border-radius: 25px; }
  .promo-footer { width: calc(100% - 28px); align-items: flex-start; flex-direction: column; gap: 10px; }
  .promo-footer > a:last-child { margin: 5px 0 0; }
  .experience-shell { width: calc(100% - 28px); padding: 22px 0 36px; }
  .experience-head { flex-direction: column; gap: 11px; }
  .experience-head .back { margin-bottom: 12px; }
  .experience-head p { font-size: 0.9rem; }
  .experience-sample-badge { margin-top: 0; }
  .experience-role-tabs { margin-top: 22px; display: flex; overflow-x: auto; overscroll-behavior-inline: contain; scroll-snap-type: inline proximity; scrollbar-width: thin; }
  .experience-role-tabs a { min-height: 44px; min-width: 108px; flex: 1 0 108px; scroll-snap-align: start; font-size: 0.8rem; }
  .experience-hero-card { min-height: 0; padding: 25px 21px; gap: 24px; border-radius: 20px; }
  .experience-metrics { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; }
  .experience-metrics span { min-width: 0; padding: 13px 7px; }
  .experience-panel { padding: 21px 18px; }
  .experience-two-column, .experience-result-grid { grid-template-columns: 1fr; gap: 0; }
  .experience-review-grid { grid-template-columns: 1fr; }
  .experience-session-row { align-items: stretch; flex-direction: column; }
  .experience-session-row .experience-sample-action { width: 100%; }
  .experience-photo-grid { gap: 7px; }
  .experience-photo-grid figcaption { padding: 9px 8px; font-size: 0.72rem; }
  .experience-subject-grid { grid-template-columns: repeat(2, 1fr); }
  .experience-next-exam { align-items: flex-start; }
  .experience-cta { padding: 22px 20px; align-items: stretch; flex-direction: column; }
  .experience-cta .btn { width: 100%; text-align: center; }
}

@media (max-width: 390px) {
  .promo-brand > span:last-child { display: none; }
  .promo-hero h1 { font-size: 2rem; }
  .promo-float-card.right { display: none; }
  .promo-product { width: calc(100% + 10px); margin-left: -5px; }
  .promo-photo-stack { transform: scale(0.9); transform-origin: center; }
  .promo-answer-dots { gap: 7px; }
  .promo-answer-dots i { width: 38px; height: 38px; }
  .experience-photo-grid { grid-template-columns: 1fr; }
  .experience-photo-grid figure { display: grid; grid-template-columns: 96px 1fr; align-items: center; }
  .experience-photo-grid img { aspect-ratio: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .promo-btn, .promo-experience-grid a { transition: none; }
  .promo-btn:hover, .promo-experience-grid a:hover { transform: none; }
}