:root {
  --course-bg: #070b17;
  --course-panel: #0d1427;
  --course-panel-2: #111a31;
  --course-ink: #f7f8fb;
  --course-muted: #9ba8bc;
  --course-line: rgba(255, 255, 255, 0.12);
  --course-mint: #48e0c1;
  --course-red: #ff5f67;
  --course-blue: #5d7cff;
  --course-purple: #b681ff;
  --course-gold: #e6b65e;
  --course-paper: #f4f2ed;
  --course-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", STSong, SimSun, serif;
  --course-sans: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --course-width: 1280px;
}

html { background: var(--course-bg); }

body.home-page {
  margin: 0;
  color: var(--course-ink);
  background:
    radial-gradient(circle at 83% 8%, rgba(72, 224, 193, 0.08), transparent 24%),
    radial-gradient(circle at 12% 22%, rgba(93, 124, 255, 0.09), transparent 30%),
    var(--course-bg);
  font-family: var(--course-sans);
}

.home-page [hidden] { display: none !important; }

.home-page a,
.home-page button { transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease, transform 160ms ease; }

.home-page button:focus-visible,
.home-page a:focus-visible,
.home-page input:focus-visible {
  outline: 3px solid rgba(72, 224, 193, 0.42);
  outline-offset: 3px;
}

.home-header {
  width: 100%;
  height: 82px;
  margin: 0;
  padding-right: max(24px, calc((100% - var(--course-width)) / 2));
  padding-left: max(24px, calc((100% - var(--course-width)) / 2));
  position: relative;
  z-index: 20;
  border-bottom: 1px solid #d8cebf;
  background: #f4efe5;
}

.home-header .brand { gap: 11px; }
.home-header .brand img:first-child { width: 40px; height: 40px; }
.home-header .brand .wordmark {
  width: 126px;
  filter: none;
}

.home-header .brand > .brand-descriptor {
  margin-left: 4px;
  padding-left: 14px;
  border-left: 1px solid #cec2b1;
  color: #625d55;
  font-size: 11px;
  letter-spacing: 0.08em;
}

.home-header .site-menu { gap: 34px; }

.home-header .site-menu > .site-menu-link,
.home-header .site-menu-group > summary {
  color: #4b4741;
  font-size: 13px;
  font-weight: 700;
}

.home-header .site-menu > .site-menu-link:hover,
.home-header .site-menu-group > summary:hover { color: #111820; }
.home-header .site-menu > .site-menu-link::after,
.home-header .site-menu-group > summary::after { bottom: 18px; }

.home-hero {
  width: min(var(--course-width), calc(100% - 48px));
  min-height: 720px;
  margin: 0 auto;
  padding: 72px 0 88px;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(420px, 0.88fr);
  gap: clamp(56px, 7vw, 104px);
  align-items: center;
}

.home-hero-glow {
  width: 410px;
  height: 410px;
  position: absolute;
  right: -70px;
  top: 64px;
  z-index: -1;
  border-radius: 50%;
  background: rgba(93, 124, 255, 0.08);
  filter: blur(70px);
}

.home-hero-copy { min-width: 0; }

.home-hero-eyebrow,
.home-section-heading p,
.home-city-heading > div > p,
.course-roadmap > div > p,
.course-notice p {
  margin: 0;
  color: var(--course-mint);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.home-hero h1 {
  max-width: 760px;
  margin: 20px 0 0;
  color: #fff;
  font-family: var(--course-sans);
  font-size: clamp(52px, 5.3vw, 78px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.home-hero-summary {
  max-width: 690px;
  margin: 28px 0 0;
  color: #c0c9d7;
  font-size: 17px;
  line-height: 1.85;
}

.home-ability-strip {
  margin-top: 38px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--course-line);
  border-bottom: 1px solid var(--course-line);
}

.home-ability-strip span {
  min-height: 64px;
  padding: 14px 12px 12px 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
  color: #dce2ea;
  font-size: 13px;
  font-weight: 800;
}

.home-ability-strip span + span { padding-left: 16px; border-left: 1px solid var(--course-line); }
.home-ability-strip b { color: var(--course-red); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; }
.home-ability-strip [data-track="naver"] b { color: var(--course-mint); }
.home-ability-strip [data-track="team"] b { color: var(--course-blue); }
.home-ability-strip [data-track="ai"] b { color: var(--course-purple); }

.home-trust-metrics {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
}

.home-trust-metrics > span {
  min-width: 150px;
  padding: 0 28px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-right: 1px solid var(--course-line);
}
.home-trust-metrics > span:first-child { padding-left: 0; }
.home-trust-metrics > span:last-child { border-right: 0; }
.home-trust-metrics b { color: #fff; font-size: 24px; line-height: 1.2; }
.home-trust-metrics small { color: var(--course-muted); font-size: 11px; }

.featured-course {
  min-width: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(72, 224, 193, 0.38);
  border-radius: 4px;
  background: rgba(13, 20, 39, 0.92);
  box-shadow: 0 36px 90px rgba(0, 0, 0, 0.38);
}

.featured-course::before {
  content: "";
  height: 3px;
  position: absolute;
  inset: 0 0 auto;
  background: linear-gradient(90deg, var(--course-red), var(--course-mint), var(--course-purple));
}

.featured-course-label {
  height: 48px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--course-line);
  color: var(--course-muted);
  font-size: 11px;
  letter-spacing: 0.12em;
}
.featured-course-label b { color: var(--course-mint); font-size: 11px; }

.featured-course-cover {
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
  background: #f2eee7;
}
.featured-course-cover img { width: 100%; height: 100%; display: block; object-fit: cover; }
.featured-course-cover span {
  padding: 7px 10px;
  position: absolute;
  right: 14px;
  bottom: 14px;
  color: #09121f;
  background: rgba(72, 224, 193, 0.94);
  font-size: 10px;
  font-weight: 900;
}

.featured-course-body { padding: 24px; }
.featured-course-body > p { margin: 0; color: var(--course-mint); font-size: 11px; font-weight: 900; letter-spacing: 0.14em; }
.featured-course-body h2 {
  margin: 10px 0 0;
  color: #fff;
  font-size: clamp(23px, 2.2vw, 32px);
  line-height: 1.35;
  letter-spacing: -0.03em;
}

.home-hero-meta {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  color: #b5c0d0;
  font-size: 13px;
}
.home-hero-meta span + span::before { content: "·"; margin-right: 20px; color: #516078; }

.home-hero-actions {
  margin-top: 24px;
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid var(--course-line);
}
.home-hero-actions > strong { color: var(--course-red); font-size: 34px; letter-spacing: -0.04em; }

.home-primary {
  min-width: 148px;
  min-height: 50px;
  padding: 0 20px;
  border: 1px solid var(--course-mint);
  border-radius: 2px;
  color: #07101a;
  background: var(--course-mint);
  font-weight: 900;
  cursor: pointer;
}
.home-primary:hover { transform: translateY(-2px); background: #6ce8cf; }
.home-primary:disabled { opacity: 0.62; cursor: default; transform: none; }

.featured-course-secondary {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.featured-course-secondary a,
.featured-course-secondary button {
  min-height: 42px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--course-line);
  border-radius: 2px;
  color: #d8dee8;
  background: transparent;
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}
.featured-course-secondary a:hover,
.featured-course-secondary button:hover { color: #fff; border-color: rgba(72, 224, 193, 0.6); }

.home-section,
.learning-value,
.course-roadmap,
.course-notice {
  width: min(var(--course-width), calc(100% - 48px));
  margin: 0 auto;
}

.home-section { padding: 96px 0; }
.upcoming-section { border-top: 1px solid var(--course-line); }

.catalog-intro,
.catalog-route-tabs,
.my-course-main {
  width: min(var(--course-width), calc(100% - 48px));
  margin-right: auto;
  margin-left: auto;
}

.catalog-intro {
  min-height: 320px;
  padding: 72px 0 66px;
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 46px;
  align-items: start;
  border-bottom: 1px solid var(--course-line);
}
.catalog-intro > p,
.my-course-intro > p,
.my-course-content-heading p {
  margin: 9px 0 0;
  color: var(--course-mint);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
}
.catalog-intro h1,
.my-course-intro h1 {
  max-width: 900px;
  margin: 0;
  color: #fff;
  font-size: clamp(48px, 5.4vw, 76px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.055em;
}
.catalog-intro div > span,
.my-course-intro > span {
  max-width: 760px;
  margin-top: 22px;
  display: block;
  color: #9ca9bb;
  font-size: 15px;
  line-height: 1.8;
}

.catalog-route-tabs {
  min-height: 72px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-right: 1px solid var(--course-line);
  border-bottom: 1px solid var(--course-line);
  border-left: 1px solid var(--course-line);
}
.catalog-route-tabs a {
  min-width: 0;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  color: #8f9caf;
  border-right: 1px solid var(--course-line);
  font-size: 13px;
  font-weight: 850;
  text-decoration: none;
}
.catalog-route-tabs a:last-child { border-right: 0; }
.catalog-route-tabs a::before { content: "0" counter(list-item); display: none; }
.catalog-route-tabs a::after { content: "→"; color: #536176; }
.catalog-route-tabs a:hover,
.catalog-route-tabs a.is-current { color: #07101a; background: var(--course-mint); }
.catalog-route-tabs a.is-current::after { color: #07101a; }
.catalog-page .catalog-upcoming { padding-top: 82px; }
.catalog-page .catalog-history { padding-top: 82px; }
.catalog-notice { margin-top: 48px; }

.catalog-page .active-course-section { padding-top: 70px; padding-bottom: 8px; }
.active-course-list { display: grid; gap: 30px; }
.active-course-card {
  margin-top: 30px;
  min-width: 0;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  border: 1px solid var(--course-line);
  background: rgba(13, 20, 39, 0.78);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.18);
}
.active-course-media { min-width: 0; min-height: 430px; overflow: hidden; position: relative; display: block; background: #111a28; }
.active-course-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 52%, rgba(8, 14, 24, 0.55)); pointer-events: none; }
.active-course-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  object-position: center;
  transition: filter 220ms ease;
}
.active-course-card:hover .active-course-media img { filter: brightness(0.985); }
.active-course-media > span { position: absolute; z-index: 2; left: 22px; bottom: 20px; padding: 8px 11px; color: #fff; background: rgba(10, 18, 29, 0.82); font-size: 11px; font-weight: 850; letter-spacing: 0.12em; }
.active-course-body { min-width: 0; padding: 38px 40px 34px; display: flex; flex-direction: column; }
.active-course-labels { display: flex; flex-wrap: wrap; gap: 8px; }
.active-course-labels span { padding: 7px 10px; color: var(--course-mint); border: 1px solid rgba(72, 224, 193, 0.42); font-size: 10px; font-weight: 850; letter-spacing: 0.08em; }
.active-course-labels span + span { color: #e7c779; border-color: rgba(231, 199, 121, 0.42); }
.active-course-body h3 { margin: 23px 0 0; color: #fff; font-size: clamp(29px, 3vw, 43px); line-height: 1.18; letter-spacing: -0.04em; }
.active-course-summary { margin: 19px 0 0; color: var(--course-muted); font-size: 14px; line-height: 1.8; }
.active-course-meta { margin: 28px 0 0; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--course-line); border-bottom: 1px solid var(--course-line); }
.active-course-meta > div { min-width: 0; padding: 18px 20px 18px 0; }
.active-course-meta > div + div { padding-left: 20px; border-left: 1px solid var(--course-line); }
.active-course-meta dt { color: #718099; font-size: 10px; font-weight: 800; letter-spacing: 0.08em; }
.active-course-meta dd { margin: 7px 0 0; color: #f0f3f7; font-size: 13px; font-weight: 800; line-height: 1.5; }
.active-course-action { margin-top: auto; padding-top: 27px; display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.active-course-action p { margin: 0; display: grid; gap: 4px; }
.active-course-action p > span { color: #8f9caf; font-size: 10px; font-weight: 800; }
.active-course-action strong { color: var(--course-red); font-size: 34px; line-height: 1; }
.active-course-action strong b { font: inherit; }
.active-course-action > a { min-height: 50px; padding: 0 20px; display: inline-flex; align-items: center; justify-content: center; gap: 22px; color: #07101a; background: var(--course-mint); font-size: 12px; font-weight: 900; text-decoration: none; }
.active-course-action > a:hover { filter: brightness(1.06); }

.home-section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}
.home-section-heading > div { max-width: 820px; }
.home-section-heading h2,
.home-city-heading h2,
.course-roadmap h2,
.course-notice h2 {
  margin: 12px 0 0;
  color: #fff;
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.045em;
}
.home-section-heading > div > span,
.course-roadmap > div > span,
.course-notice > div > span {
  margin-top: 14px;
  display: block;
  color: var(--course-muted);
  font-size: 14px;
  line-height: 1.7;
}
.home-section-heading > strong { color: #8290a5; font-size: 12px; font-weight: 700; white-space: nowrap; }

.course-mode-tabs {
  margin-top: 34px;
  display: flex;
  gap: 8px;
}
.course-mode-tabs button {
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid var(--course-line);
  border-radius: 2px;
  color: #aeb8c8;
  background: transparent;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}
.course-mode-tabs button:hover { color: #fff; border-color: rgba(72, 224, 193, 0.46); }
.course-mode-tabs button[aria-pressed="true"] { color: #08101b; border-color: var(--course-mint); background: var(--course-mint); }

.upcoming-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.upcoming-card {
  min-width: 0;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--course-line);
  border-radius: 4px;
  background: rgba(13, 20, 39, 0.78);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.18);
}
.upcoming-card:hover { transform: translateY(-4px); border-color: rgba(72, 224, 193, 0.46); }
.upcoming-card[hidden] { display: none; }

.upcoming-card::before,
.home-course-card::before {
  content: "";
  height: 3px;
  position: absolute;
  inset: 0 0 auto;
  z-index: 3;
  background: var(--course-red);
}
.upcoming-card[data-track="naver"]::before,
.home-course-card[data-track="naver"]::before { background: var(--course-mint); }
.upcoming-card[data-track="team"]::before,
.home-course-card[data-track="team"]::before { background: var(--course-blue); }
.upcoming-card[data-track="ai"]::before,
.home-course-card[data-track="ai"]::before { background: var(--course-purple); }

.upcoming-card-media,
.home-course-media {
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
  background: var(--course-paper);
}
.upcoming-card-media img,
.home-course-media img {
  width: 100%;
  height: 100%;
  display: block;
  transition: transform 260ms ease;
}
.upcoming-card-media img { object-fit: cover; }
.home-course-media img {
  object-fit: contain;
  object-position: center;
  transition: none;
}
.upcoming-card:hover .upcoming-card-media img { transform: scale(1.018); }
.home-course-card:hover .home-course-media img { transform: none; }

.upcoming-mode,
.upcoming-status,
.home-course-mode,
.home-course-status,
.home-course-issue {
  position: absolute;
  z-index: 2;
  color: #fff;
  background: rgba(7, 11, 23, 0.9);
  font-size: 10px;
  font-weight: 900;
}
.upcoming-mode,
.home-course-mode { right: 12px; top: 12px; padding: 7px 9px; }
.upcoming-status,
.home-course-status { left: 12px; bottom: 12px; padding: 7px 9px; color: var(--course-mint); }
.home-course-issue { left: 12px; top: 12px; padding: 7px 9px; }
.mode-online { color: #07101a; background: rgba(72, 224, 193, 0.94); }
.mode-offline { color: #fff; background: rgba(255, 95, 103, 0.94); }

.upcoming-card-body {
  min-height: 328px;
  padding: 22px;
  display: flex;
  flex: 1;
  flex-direction: column;
}
.upcoming-card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.upcoming-number { color: #69778c; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; letter-spacing: 0.08em; }
.upcoming-track,
.home-course-track { color: var(--course-mint); font-size: 10px; font-weight: 900; letter-spacing: 0.06em; }
.upcoming-card[data-track="coupang"] .upcoming-track,
.home-course-card[data-track="coupang"] .home-course-track { color: var(--course-red); }
.upcoming-card[data-track="team"] .upcoming-track,
.home-course-card[data-track="team"] .home-course-track { color: #7f96ff; }
.upcoming-card[data-track="ai"] .upcoming-track,
.home-course-card[data-track="ai"] .home-course-track { color: #c79fff; }

.upcoming-card h3 {
  min-height: 72px;
  margin: 14px 0 0;
  color: #fff;
  font-size: 20px;
  line-height: 1.45;
  letter-spacing: -0.025em;
}
.upcoming-detail { margin: 14px 0 0; display: flex; flex-wrap: wrap; gap: 6px 16px; color: #9aa8bc; font-size: 12px; }
.upcoming-detail span + span::before { content: "·"; margin-right: 14px; color: #536076; }

.upcoming-card-footer {
  margin-top: auto;
  padding-top: 18px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  border-top: 1px solid var(--course-line);
}
.upcoming-card-footer strong { color: var(--course-red); font-size: 28px; letter-spacing: -0.04em; }
.upcoming-card[data-track="naver"] .upcoming-card-footer strong { color: var(--course-mint); }
.upcoming-card[data-track="team"] .upcoming-card-footer strong { color: #7f96ff; }
.upcoming-card[data-track="ai"] .upcoming-card-footer strong { color: #c79fff; }
.upcoming-card-footer span { color: #a8b3c2; font-size: 11px; }

.upcoming-card-actions { margin-top: 16px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: stretch; }
.upcoming-reserve-group { min-width: 0; display: grid; grid-template-columns: 1fr auto; align-items: center; border: 1px solid var(--course-line); }
.upcoming-reserve-button,
.upcoming-expect-button {
  min-height: 42px;
  border: 0;
  color: #07101a;
  background: var(--course-mint);
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
}
.upcoming-reserve-button:hover,
.upcoming-expect-button:hover { filter: brightness(1.08); }
.upcoming-reserve-button:disabled,
.upcoming-expect-button:disabled { opacity: 0.58; cursor: wait; }
.upcoming-reserve-group small { padding: 0 10px; color: #8e9baf; font-size: 10px; white-space: nowrap; }
.upcoming-expect-button { padding: 0 13px; color: #cfd6e0; border: 1px solid var(--course-line); background: transparent; }
.upcoming-expect-button[aria-pressed="true"] { color: var(--course-mint); border-color: rgba(72, 224, 193, 0.52); }

.home-empty { margin: 24px 0 0; padding: 18px; color: #9ba8bc; border: 1px solid var(--course-line); }

.home-city-expectation {
  margin-top: 92px;
  padding: 34px;
  border: 1px solid var(--course-line);
  border-radius: 4px;
  background: rgba(13, 20, 39, 0.78);
}
.home-city-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; }
.home-city-heading h2 { font-size: clamp(30px, 3.6vw, 46px); }
.home-city-heading > p { max-width: 470px; margin: 0; color: #9ba8bc; font-size: 13px; line-height: 1.75; }
.city-vote-route { margin-top: 28px; min-height: 52px; padding: 0 18px; display: flex; align-items: center; gap: 16px; border: 1px solid rgba(72, 224, 193, 0.28); background: rgba(72, 224, 193, 0.04); }
.city-vote-route span { color: var(--course-mint); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; }
.city-vote-route strong { color: #fff; font-size: 13px; }
.city-vote-route b { color: #526078; }
.city-vote-route small { color: #929fb2; font-size: 11px; }

.home-city-grid { margin-top: 24px; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr); gap: 22px; }
.city-vote-leader { min-height: 138px; padding: 24px; display: flex; align-items: center; justify-content: space-between; border: 1px solid var(--course-line); background: #091020; }
.city-vote-leader div { display: flex; flex-direction: column; gap: 7px; }
.city-vote-leader span { color: var(--course-red); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; }
.city-vote-leader strong { color: #fff; font-size: 28px; }
.city-vote-leader small { color: #8996a9; font-size: 11px; }
.city-vote-leader > b { color: var(--course-mint); font-size: 42px; letter-spacing: -0.06em; }

.city-vote-ballot,
.city-vote-board { margin-top: 22px; padding: 20px; border: 1px solid var(--course-line); background: rgba(7, 11, 23, 0.52); }
.city-vote-board { margin-top: 0; }
.city-vote-section-title { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.city-vote-section-title h3 { margin: 0; color: #fff; font-size: 16px; }
.city-vote-section-title span { color: #78869a; font-size: 10px; }
.city-vote-options { margin-top: 16px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.city-vote-option { min-height: 58px; padding: 9px 10px; display: flex; flex-direction: column; align-items: start; justify-content: center; gap: 4px; border: 1px solid var(--course-line); color: #d5dce6; background: transparent; cursor: pointer; }
.city-vote-option:hover { border-color: rgba(72, 224, 193, 0.48); }
.city-vote-option[aria-pressed="true"] { color: #061019; border-color: var(--course-mint); background: var(--course-mint); }
.city-vote-option strong { font-size: 13px; }
.city-vote-option small { color: #758398; font-size: 9px; }
.city-vote-option[aria-pressed="true"] small { color: rgba(6, 16, 25, 0.65); }

.city-vote-board ol { margin: 18px 0 0; padding: 0; display: grid; gap: 10px; list-style: none; }
.city-vote-board li { display: grid; grid-template-columns: 28px 54px minmax(80px, 1fr) 42px 34px; align-items: center; gap: 8px; color: #aeb8c7; }
.city-rank { color: #667489; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; }
.city-rank-name { color: #dbe1e9; font-size: 12px; }
.city-rank-track { height: 4px; overflow: hidden; background: rgba(255, 255, 255, 0.08); }
.city-rank-track i { height: 100%; display: block; background: #526fdf; }
.city-vote-board li.is-leading .city-rank-track i { background: var(--course-mint); }
.city-vote-board li.is-selected .city-rank-name { color: var(--course-mint); }
.city-rank-probability { color: #e1e5eb; font-size: 11px; text-align: right; }
.city-rank-votes { color: #657389; font-size: 9px; text-align: right; }
.city-vote-status { margin: 16px 0 0; color: var(--course-mint); font-size: 11px; }
.city-vote-note { margin: 8px 0 0; color: #68768a; font-size: 10px; line-height: 1.7; }

.learning-value {
  padding: 76px 0;
  border-top: 1px solid var(--course-line);
  border-bottom: 1px solid var(--course-line);
}
.home-section-heading-dark h2 { max-width: 880px; font-size: clamp(34px, 3.6vw, 50px); }
.learning-value-grid { margin-top: 42px; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }
.learning-value-grid article { min-height: 190px; padding: 22px 24px 22px 0; }
.learning-value-grid article + article { padding-left: 24px; border-left: 1px solid var(--course-line); }
.learning-value-grid span { color: var(--course-red); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 13px; }
.learning-value-grid article:nth-child(2) span { color: var(--course-mint); }
.learning-value-grid article:nth-child(3) span { color: var(--course-blue); }
.learning-value-grid article:nth-child(4) span { color: var(--course-purple); }
.learning-value-grid article:nth-child(5) span { color: var(--course-gold); }
.learning-value-grid h3 { margin: 28px 0 0; color: #fff; font-size: 17px; }
.learning-value-grid p { margin: 10px 0 0; color: #8f9caf; font-size: 12px; line-height: 1.75; }

.history-section {
  border-top-color: var(--course-line);
  border-bottom: 1px solid var(--course-line);
  background: transparent;
}
.home-course-grid { margin-top: 34px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.home-course-card {
  min-width: 0;
  overflow: hidden;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  border: 1px solid var(--course-line);
  border-radius: 4px;
  background: rgba(13, 20, 39, 0.78);
  color: inherit;
  text-decoration: none;
}
.home-course-card:hover { transform: translateY(-4px); border-color: rgba(72, 224, 193, 0.46); }
.home-course-card[hidden] { display: none; }
.home-course-media { height: 100%; min-height: 300px; aspect-ratio: auto; }
.home-course-body { min-width: 0; padding: 24px; display: flex; flex-direction: column; }
.home-course-title { margin-top: 10px; color: #fff; font-size: 22px; line-height: 1.38; letter-spacing: -0.025em; }
.home-course-meta { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px 16px; color: #98a5b8; font-size: 11px; }
.home-course-meta span + span::before { content: "·"; margin-right: 14px; color: #556278; }
.home-course-footer { margin-top: auto; padding-top: 20px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--course-line); }
.home-course-footer > span { display: flex; flex-direction: column; gap: 7px; }
.home-course-footer > span + span { padding-left: 18px; border-left: 1px solid var(--course-line); }
.home-course-footer small { color: #748196; font-size: 9px; }
.home-course-footer b { color: #fff; font-size: 24px; }
.home-course-link { margin-top: 18px; color: var(--course-mint); font-size: 12px; font-weight: 900; }

.course-roadmap { padding: 92px 0; display: grid; grid-template-columns: 0.75fr 1.25fr; gap: 70px; align-items: start; }
.course-roadmap h2 { font-size: clamp(34px, 3.8vw, 50px); }
.course-roadmap ol { margin: 4px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--course-line); border-left: 1px solid var(--course-line); list-style: none; }
.course-roadmap li { min-height: 148px; padding: 22px; display: flex; flex-direction: column; gap: 8px; border-right: 1px solid var(--course-line); border-bottom: 1px solid var(--course-line); }
.course-roadmap li b { color: var(--course-red); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; }
.course-roadmap li[data-track="naver"] b { color: var(--course-mint); }
.course-roadmap li[data-track="team"] b { color: var(--course-blue); }
.course-roadmap li[data-track="ai"] b { color: var(--course-purple); }
.course-roadmap li strong { margin-top: 8px; color: #fff; font-size: 18px; }
.course-roadmap li span { color: #8694a8; font-size: 11px; line-height: 1.65; }
.course-roadmap > a { grid-column: 2; width: fit-content; color: var(--course-mint); font-size: 13px; font-weight: 900; text-decoration: none; }

.course-notice {
  margin-bottom: 48px;
  padding: 34px 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border: 1px solid rgba(72, 224, 193, 0.34);
  background: linear-gradient(110deg, rgba(72, 224, 193, 0.08), rgba(93, 124, 255, 0.08));
}
.course-notice h2 { font-size: clamp(28px, 3vw, 40px); }
.course-notice > a { min-height: 50px; padding: 0 20px; display: inline-flex; align-items: center; gap: 28px; color: #07101a; background: var(--course-mint); font-size: 13px; font-weight: 900; text-decoration: none; white-space: nowrap; }
.course-notice > a:hover { transform: translateY(-2px); }

.home-footer {
  width: min(var(--course-width), calc(100% - 48px));
  min-height: 90px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--course-line);
}
.footer-brand { display: inline-flex; align-items: center; gap: 11px; color: #fff; text-decoration: none; }
.footer-brand img { width: 36px; height: 36px; object-fit: contain; }
.footer-brand > span { display: flex; flex-direction: column; gap: 2px; }
.footer-brand strong { letter-spacing: 0.13em; }
.footer-brand small { color: #78869a; font-size: 9px; }
.home-footer nav { display: flex; gap: 24px; }
.home-footer nav a { color: #8f9caf; font-size: 11px; text-decoration: none; }
.home-footer nav a:hover { color: var(--course-mint); }

.invite-notice,
.loading-failure {
  position: fixed;
  left: 50%;
  bottom: 20px;
  z-index: 100;
  transform: translateX(-50%);
  padding: 14px 18px;
  color: #fff;
  border: 1px solid rgba(255, 95, 103, 0.5);
  background: #141b2b;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.42);
  font-size: 12px;
}
.loading-failure { display: flex; gap: 10px; }

.upcoming-reservation-dialog,
.my-course-dialog {
  width: min(560px, calc(100% - 32px));
  max-height: calc(100vh - 40px);
  overflow: auto;
  padding: 34px;
  border: 1px solid rgba(72, 224, 193, 0.4);
  border-radius: 4px;
  color: #fff;
  background: #0d1427;
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.55);
}
.upcoming-reservation-dialog::backdrop,
.my-course-dialog::backdrop { background: rgba(2, 5, 12, 0.8); backdrop-filter: blur(6px); }
.dialog-close { width: 36px; height: 36px; position: absolute; top: 14px; right: 14px; border: 1px solid var(--course-line); color: #cbd3de; background: transparent; font-size: 22px; cursor: pointer; }
.dialog-eyebrow { margin: 0; color: var(--course-mint); font-size: 10px; font-weight: 900; letter-spacing: 0.16em; }
.upcoming-reservation-dialog h2,
.my-course-dialog h2 { margin: 10px 44px 0 0; color: #fff; font-size: 28px; line-height: 1.35; }
.upcoming-reservation-copy { margin: 10px 0 0; color: #919fb2; font-size: 12px; }
.upcoming-reservation-dialog form { margin-top: 24px; display: grid; gap: 10px; }
.upcoming-reservation-dialog label { color: #b8c1cf; font-size: 11px; font-weight: 800; }
.upcoming-reservation-dialog input { width: 100%; height: 48px; padding: 0 14px; border: 1px solid var(--course-line); color: #fff; background: #070b17; }
.upcoming-reservation-dialog form > p { min-height: 18px; margin: 0; color: var(--course-muted); font-size: 11px; }
.upcoming-reservation-dialog form > p.is-success { color: var(--course-mint); }
.upcoming-reservation-dialog form > p.is-error { color: var(--course-red); }
.upcoming-reservation-dialog form > button { min-height: 48px; border: 0; color: #07101a; background: var(--course-mint); font-weight: 900; cursor: pointer; }

.pandao-account-panel { margin-top: 22px; padding: 18px; display: grid; gap: 6px; border: 1px solid var(--course-line); background: #091020; }
.pandao-account-panel > span { color: var(--course-mint); font-size: 10px; font-weight: 900; letter-spacing: 0.1em; }
.pandao-account-panel > strong { color: #fff; font-size: 16px; }
.pandao-account-panel p { margin: 0; color: #8e9caf; font-size: 11px; line-height: 1.6; }
.pandao-account-panel a { width: fit-content; margin-top: 6px; color: var(--course-mint); font-size: 11px; font-weight: 900; }
.my-course-list { margin-top: 18px; display: grid; gap: 10px; }
.my-course-entry { display: grid; gap: 8px; }
.my-course-entry-link { padding: 16px; display: grid; gap: 6px; border: 1px solid var(--course-line); color: inherit; text-decoration: none; }
.my-course-entry-link span { color: var(--course-mint); font-size: 9px; }
.my-course-entry-link strong { color: #fff; font-size: 14px; }
.my-course-entry-link small { color: #8492a6; font-size: 10px; }
.my-course-bind { min-height: 38px; border: 1px solid rgba(72, 224, 193, 0.45); color: var(--course-mint); background: transparent; font-size: 11px; font-weight: 800; cursor: pointer; }
.my-course-empty { padding: 22px; border: 1px solid var(--course-line); }
.my-course-empty strong { color: #fff; }
.my-course-empty p { color: #8f9caf; font-size: 11px; }
.my-course-empty a { color: var(--course-mint); font-size: 11px; font-weight: 900; }

.my-course-main { min-height: calc(100vh - 173px); padding: 72px 0 96px; overflow: visible; }
.my-course-intro { max-width: 960px; }
.my-course-intro h1 { margin-top: 18px; }
.my-course-layout { margin-top: 58px; display: grid; grid-template-columns: 330px minmax(0, 1fr); gap: 28px; align-items: start; }
.my-account-panel { margin: 0; padding: 26px; position: sticky; top: 102px; }
.my-account-panel > strong { margin-top: 12px; color: #7e8ba0; font-size: 11px; letter-spacing: 0.08em; }
.my-account-panel > b { color: #fff; font-size: 24px; line-height: 1.35; }
.my-account-panel p { margin-top: 8px; font-size: 12px; }
.my-account-panel a { min-height: 42px; padding: 0 14px; align-items: center; border: 1px solid rgba(72, 224, 193, 0.45); text-decoration: none; }
.my-course-content { min-height: 330px; padding: 28px; border: 1px solid var(--course-line); background: rgba(13, 20, 39, 0.58); }
.my-course-content-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; padding-bottom: 22px; border-bottom: 1px solid var(--course-line); }
.my-course-content-heading h2 { margin: 9px 0 0; color: #fff; font-size: 30px; }
.my-course-content-heading > a { color: var(--course-mint); font-size: 11px; font-weight: 900; text-decoration: none; }
.my-course-page .my-course-list { margin-top: 22px; }
.my-course-page .my-course-entry { grid-template-columns: minmax(0, 1fr) auto; align-items: stretch; }
.my-course-page .my-course-entry-link { min-height: 112px; padding: 20px; justify-content: center; background: #091020; }
.my-course-page .my-course-entry-link strong { font-size: 18px; }
.my-course-page .my-course-bind { min-width: 164px; padding: 0 16px; }
.my-course-page .my-course-empty { min-height: 220px; display: flex; flex-direction: column; align-items: start; justify-content: center; background: #091020; }
.my-course-page .my-course-empty strong { font-size: 21px; }
.my-course-page .my-course-empty p { font-size: 12px; }

@media (max-width: 1100px) {
  .home-hero { min-height: auto; grid-template-columns: 1fr 420px; gap: 42px; }
  .home-hero h1 { font-size: clamp(48px, 6vw, 68px); }
  .home-trust-metrics > span { min-width: 128px; padding: 0 18px; }
  .learning-value-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .learning-value-grid article:nth-child(4) { padding-left: 0; border-left: 0; border-top: 1px solid var(--course-line); }
  .learning-value-grid article:nth-child(5) { border-top: 1px solid var(--course-line); }
  .home-course-grid { grid-template-columns: 1fr; }
  .home-course-media { min-height: 330px; }
  .home-city-grid { grid-template-columns: 1fr; }
  .course-roadmap { grid-template-columns: 1fr; gap: 36px; }
  .course-roadmap > a { grid-column: 1; }
}

@media (max-width: 930px) {
  .home-header { height: auto; min-height: 78px; align-items: center; }
  .home-header .brand > .brand-descriptor { display: none; }
  .home-header .site-menu { gap: 18px; }
  .home-header .site-menu > .site-menu-link,
  .home-header .site-menu-group > summary { font-size: 11px; }
  .home-header .site-menu > .site-menu-link::after,
  .home-header .site-menu-group > summary::after { bottom: 16px; }
  .home-hero { padding: 60px 0 72px; grid-template-columns: 1fr; gap: 44px; }
  .featured-course { width: min(600px, 100%); }
  .upcoming-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .active-course-card { grid-template-columns: 1fr; }
  .active-course-media { min-height: 0; aspect-ratio: 16 / 9; }
  .home-trust-metrics > span { flex: 1; }
  .home-city-heading,
  .home-section-heading { align-items: start; flex-direction: column; }
  .home-city-heading > p { max-width: none; }
  .course-notice { align-items: start; flex-direction: column; }
  .home-footer { padding: 26px 0; align-items: start; flex-direction: column; }
  .catalog-intro { min-height: 270px; grid-template-columns: 130px minmax(0, 1fr); gap: 28px; }
  .my-course-layout { grid-template-columns: 1fr; }
  .my-account-panel { position: static; }
}

@media (max-width: 640px) {
  .home-hero,
  .home-section,
  .learning-value,
  .course-roadmap,
  .course-notice,
  .home-footer,
  .catalog-intro,
  .catalog-route-tabs,
  .my-course-main { width: min(100% - 28px, var(--course-width)); }

  .home-header { width: 100%; min-height: 68px; padding-right: 14px; padding-left: 14px; }
  .home-header .brand { gap: 7px; }
  .home-header .brand-lockup { gap: 6px; padding: 0; }
  .home-header .brand img:first-child { width: 32px; height: 32px; }
  .home-header .brand .wordmark { width: 90px; }
  .home-header .site-menu { gap: 11px; }
  .home-header .site-menu > .site-menu-link,
  .home-header .site-menu-group > summary { font-size: 9px; }
  .home-header .site-menu > .site-menu-link::after,
  .home-header .site-menu-group > summary::after { bottom: 13px; }
  .site-submenu { width: 154px; right: -8px; }
  .home-header .site-menu .site-submenu a { min-height: 40px; padding: 0 14px; font-size: 11px; }

  .home-hero { padding: 48px 0 60px; }
  .home-hero h1 { margin-top: 14px; font-size: clamp(40px, 12vw, 55px); line-height: 1.12; }
  .home-hero-summary { margin-top: 20px; font-size: 14px; line-height: 1.75; }
  .home-ability-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home-ability-strip span:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid var(--course-line); }
  .home-ability-strip span:nth-child(4) { border-top: 1px solid var(--course-line); }
  .home-trust-metrics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 0; }
  .home-trust-metrics > span { min-width: 0; padding: 0 14px; }
  .home-trust-metrics > span:nth-child(3) { padding-left: 0; border-right: 0; }
  .home-trust-metrics b { font-size: 20px; }

  .featured-course-body { padding: 19px; }
  .featured-course-body h2 { font-size: 23px; }
  .home-hero-meta { gap: 8px 12px; }
  .home-hero-meta span + span::before { margin-right: 10px; }
  .home-hero-actions { align-items: stretch; flex-direction: column; }
  .home-primary { width: 100%; }
  .featured-course-secondary { grid-template-columns: 1fr; }

  .home-section { padding: 68px 0; }
  .catalog-intro { min-height: 0; padding: 52px 0 44px; grid-template-columns: 1fr; gap: 16px; }
  .catalog-intro > p { margin: 0; }
  .catalog-intro h1,
  .my-course-intro h1 { font-size: clamp(39px, 12vw, 54px); }
  .catalog-intro div > span,
  .my-course-intro > span { margin-top: 16px; font-size: 13px; }
  .catalog-route-tabs { min-height: 112px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-route-tabs a { min-height: 56px; padding: 0 14px; border-bottom: 1px solid var(--course-line); font-size: 11px; }
  .catalog-route-tabs a:nth-child(2) { border-right: 0; }
  .catalog-route-tabs a:nth-child(n + 3) { border-bottom: 0; }
  .catalog-page .catalog-upcoming,
  .catalog-page .catalog-history { padding-top: 62px; }
  .catalog-page .active-course-section { padding-top: 52px; }
  .active-course-card { margin-top: 22px; }
  .active-course-body { padding: 23px 19px 21px; }
  .active-course-body h3 { margin-top: 18px; font-size: 25px; }
  .active-course-summary { font-size: 13px; }
  .active-course-meta { margin-top: 22px; grid-template-columns: 1fr; }
  .active-course-meta > div { padding: 15px 0; }
  .active-course-meta > div + div { padding-left: 0; border-top: 1px solid var(--course-line); border-left: 0; }
  .active-course-action { padding-top: 22px; align-items: stretch; flex-direction: column; }
  .active-course-action > a { width: 100%; }
  .home-section-heading h2,
  .home-city-heading h2,
  .course-roadmap h2 { font-size: 34px; }
  .home-section-heading > div > span { font-size: 12px; }
  .course-mode-tabs { overflow-x: auto; }
  .course-mode-tabs button { flex: 0 0 auto; }
  .upcoming-grid { grid-template-columns: 1fr; gap: 18px; }
  .upcoming-card-body { min-height: 300px; padding: 19px; }
  .upcoming-card h3 { min-height: 0; margin-bottom: 28px; font-size: 19px; }
  .upcoming-card-actions { grid-template-columns: 1fr; }
  .upcoming-expect-button { min-height: 42px; }

  .home-city-expectation { margin-top: 62px; padding: 20px 14px; }
  .city-vote-route { padding: 12px; align-items: flex-start; flex-wrap: wrap; }
  .city-vote-route small { width: 100%; }
  .city-vote-leader { min-height: 118px; padding: 18px; }
  .city-vote-leader strong { font-size: 23px; }
  .city-vote-leader > b { font-size: 34px; }
  .city-vote-options { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .city-vote-board { padding: 16px 12px; overflow: hidden; }
  .city-vote-board li { grid-template-columns: 22px 46px minmax(50px, 1fr) 38px; gap: 6px; }
  .city-rank-votes { display: none; }

  .learning-value { padding: 60px 0; }
  .learning-value-grid { grid-template-columns: 1fr; margin-top: 26px; }
  .learning-value-grid article,
  .learning-value-grid article + article,
  .learning-value-grid article:nth-child(4) { min-height: 0; padding: 22px 0; border-left: 0; border-top: 1px solid var(--course-line); }
  .learning-value-grid h3 { margin-top: 16px; }

  .home-course-grid { gap: 18px; }
  .home-course-card { grid-template-columns: 1fr; }
  .home-course-media { min-height: 0; aspect-ratio: 16 / 9; }
  .home-course-body { min-height: 280px; padding: 20px; }

  .course-roadmap { padding: 68px 0; }
  .course-roadmap ol { grid-template-columns: 1fr; }
  .course-roadmap li { min-height: 126px; }
  .course-notice { margin-bottom: 28px; padding: 24px 20px; }
  .course-notice h2 { font-size: 28px; }
  .course-notice > a { width: 100%; justify-content: space-between; }
  .home-footer nav { flex-wrap: wrap; gap: 14px 20px; }

  .upcoming-reservation-dialog,
  .my-course-dialog { padding: 26px 20px; }
  .my-course-main { min-height: 0; padding: 52px 0 72px; }
  .my-course-layout { margin-top: 38px; gap: 18px; }
  .my-account-panel,
  .my-course-content { padding: 20px; }
  .my-course-content-heading { align-items: start; flex-direction: column; }
  .my-course-page .my-course-entry { grid-template-columns: 1fr; }
  .my-course-page .my-course-bind { min-height: 44px; }
}