:root {
  --bg: #f5fbff;
  --panel: rgba(255, 255, 255, 0.78);
  --ink: #12364f;
  --muted: #526b7a;
  --blue: #2b6f9f;
  --blue-soft: #eaf8ff;
  --line: rgba(43, 111, 159, 0.16);
  --shadow: 0 28px 90px rgba(31, 106, 148, 0.16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: ui-rounded, "Apple SD Gothic Neo", "NanumSquareRound", "Pretendard", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(156, 221, 255, 0.55), transparent 32rem),
    radial-gradient(circle at 88% 18%, rgba(213, 244, 255, 0.75), transparent 30rem),
    linear-gradient(180deg, #edf9ff 0%, #ffffff 72%);
}

.page-shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.hero { min-height: 88vh; padding: 28px 0 72px; }
.nav { display: flex; align-items: center; justify-content: space-between; margin-bottom: 80px; }
.brand-mark { font-weight: 900; letter-spacing: -0.04em; color: var(--blue); font-size: 22px; }
.nav-link { color: var(--muted); text-decoration: none; font-weight: 800; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.eyebrow, .section-kicker { margin: 0 0 14px; color: var(--blue); font-weight: 900; letter-spacing: -0.02em; }
h1 { margin: 0; font-size: clamp(56px, 9vw, 112px); line-height: 0.93; letter-spacing: -0.08em; }
.hero-description { width: min(560px, 100%); margin: 28px 0 0; font-size: 20px; line-height: 1.75; color: var(--muted); word-break: keep-all; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.primary-action, .secondary-action {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 22px; border-radius: 999px;
  font-weight: 900; text-decoration: none;
}
.primary-action { background: var(--ink); color: white; box-shadow: 0 18px 40px rgba(18, 54, 79, 0.18); }
.secondary-action { background: rgba(255,255,255,.7); color: var(--blue); border: 1px solid var(--line); }
.coach-card {
  position: relative; min-height: 460px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 46px;
  background: linear-gradient(160deg, rgba(255,255,255,.82), rgba(234,248,255,.78));
  box-shadow: var(--shadow); overflow: hidden;
}
.orb { position: absolute; border-radius: 999px; filter: blur(2px); opacity: .82; }
.orb-one { width: 220px; height: 220px; background: #c9efff; top: 36px; right: -42px; }
.orb-two { width: 180px; height: 180px; background: #dff7ef; bottom: -28px; left: 38px; }
.coach-emoji { position: relative; font-size: 132px; transform: translateY(-18px); animation: breathe 4.8s ease-in-out infinite; }
.coach-chip { position: absolute; bottom: 46px; padding: 16px 20px; border-radius: 22px; background: white; color: var(--ink); font-weight: 900; box-shadow: 0 18px 48px rgba(31, 106, 148, 0.12); }
.section { padding: 72px 0; }
h2 { margin: 0 0 28px; font-size: clamp(34px, 5vw, 58px); line-height: 1.05; letter-spacing: -0.06em; }
.flow-grid, .value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.flow-card, .value-grid > div, .download-panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: 30px; padding: 24px; box-shadow: 0 18px 56px rgba(31,106,148,.08);
}
.flow-card span { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--blue-soft); color: var(--blue); font-weight: 900; margin-bottom: 18px; }
.flow-card strong, .value-grid strong { display: block; font-size: 18px; margin-bottom: 10px; }
p { color: var(--muted); line-height: 1.65; word-break: keep-all; }
.values .value-grid { grid-template-columns: repeat(3, 1fr); }
.download-panel { margin: 56px 0 88px; text-align: center; background: linear-gradient(180deg, #ffffff, #eaf8ff); }
.download-panel p { margin-inline: auto; max-width: 560px; }

@keyframes breathe { 0%,100% { transform: translateY(-18px) scale(1); } 50% { transform: translateY(-26px) scale(1.035); } }

@media (max-width: 860px) {
  .nav { margin-bottom: 48px; }
  .hero-grid, .flow-grid, .values .value-grid { grid-template-columns: 1fr; }
  .coach-card { min-height: 320px; border-radius: 34px; }
  .coach-emoji { font-size: 96px; }
  .section { padding: 48px 0; }
}