/* Hero -------------------------------------------------------------------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: var(--grad-hero);
}
.hero::before,
.hero::after { content: ''; position: absolute; border-radius: 50%; pointer-events: none; }
.hero::before { width: 520px; height: 520px; right: -140px; top: -180px; background: rgba(255, 255, 255, .10); }
.hero::after { width: 320px; height: 320px; left: -110px; bottom: -160px; background: rgba(255, 255, 255, .08); }

.hero__inner { position: relative; z-index: 1; padding: 96px 0 104px; }
.hero__sub { font-size: 16px; font-weight: 600; opacity: .9; letter-spacing: -.01em; }
.hero__title { margin-top: 14px; font-size: var(--fs-h1); font-weight: 800; line-height: 1.25; letter-spacing: -.03em; white-space: pre-line; }
.hero__desc { margin-top: 18px; font-size: 16.5px; line-height: 1.7; opacity: .92; max-width: 620px; }
.hero__actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero__stats { margin-top: 46px; display: flex; flex-wrap: wrap; gap: 34px; }
.hero__stat b { display: block; font-size: 28px; font-weight: 800; letter-spacing: -.02em; }
.hero__stat span { font-size: 13.5px; opacity: .85; }

@media (max-width: 768px) {
  .hero__inner { padding: 56px 0 62px; }
  .hero__stats { gap: 22px; margin-top: 32px; }
  .hero__stat b { font-size: 22px; }
}

/* Browse (과정 둘러보기) ---------------------------------------------------- */
.browse__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.browse__more { font-size: 14px; font-weight: 700; color: var(--c-text-sub); }
.browse__more:hover { color: var(--c-primary); }
.browse__count { margin-left: 8px; font-size: 14px; font-weight: 600; color: var(--c-text-muted); }

/* AI 추천 ------------------------------------------------------------------ */
.ai-section { background: linear-gradient(180deg, #FBFAFF 0%, #F5F7FA 100%); }
.ai-badge-line { display: inline-flex; align-items: center; gap: 8px; color: var(--c-accent); font-weight: 800; font-size: 14px; letter-spacing: .02em; }
.ai-badge-line::before { content: ''; width: 18px; height: 18px; border-radius: 5px; background: var(--grad-hero); }
.ai-section .card { border-color: #EBE4FB; }

/* Intro 3-step ------------------------------------------------------------ */
.intro { display: grid; grid-template-columns: minmax(0, 380px) minmax(0, 1fr); gap: 56px; align-items: start; }
.intro__title { font-size: var(--fs-h2); font-weight: 800; line-height: 1.28; letter-spacing: -.02em; }
.intro__title em { display: block; font-style: normal; color: var(--c-primary); }
.intro__desc { margin-top: 18px; color: var(--c-text-sub); line-height: 1.8; }
.intro__more { margin-top: 26px; }

.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.step {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 26px 22px 28px; transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.step__img { width: 64px; height: 64px; margin-bottom: 16px; }
.step__no { font-size: 13px; font-weight: 800; color: var(--c-primary); letter-spacing: .06em; }
.step__text { margin-top: 8px; font-size: 17px; font-weight: 700; line-height: 1.45; letter-spacing: -.01em; white-space: pre-line; }
.step__desc { margin-top: 10px; font-size: 14px; color: var(--c-text-sub); line-height: 1.7; }

@media (max-width: 1024px) { .intro { grid-template-columns: 1fr; gap: 32px; } }
@media (max-width: 768px) { .steps { grid-template-columns: 1fr; } }

/* CTA banner -------------------------------------------------------------- */
.cta {
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
  padding: 44px 48px; border-radius: var(--radius-lg); color: #fff; background: var(--c-bg-dark);
  background-image: radial-gradient(circle at 88% 20%, rgba(124, 58, 237, .55) 0%, transparent 55%),
                    radial-gradient(circle at 10% 90%, rgba(47, 91, 255, .5) 0%, transparent 50%);
}
.cta__logo { height: 26px; opacity: .95; margin-bottom: 14px; }
.cta__title { font-size: 26px; font-weight: 800; letter-spacing: -.02em; line-height: 1.35; }
.cta__desc { margin-top: 10px; font-size: 15px; opacity: .8; }
.cta__actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.cta__tel { display: flex; flex-direction: column; font-size: 13px; opacity: .8; }
.cta__tel b { font-size: 22px; font-weight: 800; letter-spacing: -.01em; opacity: 1; }
.cta__tel:hover { color: #fff; }
@media (max-width: 768px) { .cta { padding: 30px 24px; } .cta__title { font-size: 21px; } }

/* Contents list ----------------------------------------------------------- */
.filters { display: grid; gap: 16px; padding: 22px 24px; background: var(--c-bg-soft); border-radius: var(--radius); margin-bottom: 30px; }
.filters__row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.filters__label { flex: 0 0 76px; font-size: 13.5px; font-weight: 700; color: var(--c-text-sub); }
.filters__search { display: flex; gap: 8px; margin-left: auto; }
.filters__search .input { width: 240px; height: 40px; }
@media (max-width: 768px) {
  .filters { padding: 16px; }
  .filters__label { flex-basis: 100%; }
  .filters__search { width: 100%; margin-left: 0; }
  .filters__search .input { flex: 1 1 auto; width: auto; }
}

.list-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.list-head__count { font-size: 14px; color: var(--c-text-sub); }
.list-head__count b { color: var(--c-primary); }

/* Content detail ---------------------------------------------------------- */
.detail { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 40px; align-items: start; }
@media (max-width: 1024px) { .detail { grid-template-columns: 1fr; gap: 28px; } }

.player {
  position: relative; aspect-ratio: 16 / 9; background: #000; border-radius: var(--radius);
  overflow: hidden; display: flex; align-items: center; justify-content: center;
}
.player video, .player iframe { width: 100%; height: 100%; border: 0; }
.player__placeholder { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; color: #fff; background-size: cover; background-position: center; }
.player__placeholder::before { content: ''; position: absolute; inset: 0; background: rgba(0, 0, 0, .55); }
.player__placeholder span { position: relative; font-size: 14px; opacity: .85; }
.player__play { position: relative; width: 66px; height: 66px; border-radius: 50%; background: rgba(255, 255, 255, .18); border: 2px solid rgba(255, 255, 255, .8); display: flex; align-items: center; justify-content: center; }
.player__play::after { content: ''; border-left: 16px solid #fff; border-top: 10px solid transparent; border-bottom: 10px solid transparent; margin-left: 4px; }

.detail__title { margin-top: 24px; font-size: 28px; font-weight: 800; line-height: 1.35; letter-spacing: -.02em; }
.detail__meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 14px; font-size: 14px; color: var(--c-text-sub); }
.detail__tags { margin-top: 16px; }
.detail__body { margin-top: 34px; padding-top: 30px; border-top: 1px solid var(--c-line); }

.side-card { border: 1px solid var(--c-line); border-radius: var(--radius); padding: 22px; position: sticky; top: calc(var(--header-h) + 20px); }
.side-card__title { font-size: 16px; font-weight: 800; margin-bottom: 14px; }
.side-card dl { display: grid; grid-template-columns: 84px 1fr; gap: 10px 8px; font-size: 14px; }
.side-card dt { color: var(--c-text-muted); }
.side-card dd { margin: 0; font-weight: 600; }
.side-card .btn { margin-top: 20px; }
@media (max-width: 1024px) { .side-card { position: static; } }

.chapters { border-top: 2px solid var(--c-text); }
.chapters li { display: flex; align-items: center; gap: 14px; padding: 15px 6px; border-bottom: 1px solid var(--c-line); font-size: 15px; }
.chapters li b { flex: 0 0 auto; width: 30px; color: var(--c-primary); font-weight: 800; }
.chapters li span { margin-left: auto; font-size: 13px; color: var(--c-text-muted); }

.progress { height: 8px; border-radius: 999px; background: var(--c-line-soft); overflow: hidden; }
.progress__bar { height: 100%; border-radius: 999px; background: var(--grad-hero); transition: width .4s var(--ease); }

/* Member forms ------------------------------------------------------------ */
.auth-wrap { max-width: 420px; margin: 70px auto 110px; }
.auth-wrap--wide { max-width: 560px; }
.auth-wrap__title { font-size: 26px; font-weight: 800; text-align: center; letter-spacing: -.02em; }
.auth-wrap__desc { margin-top: 10px; text-align: center; color: var(--c-text-sub); font-size: 14.5px; }
.auth-card { margin-top: 32px; padding: 32px 28px 34px; border: 1px solid var(--c-line); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); }
.auth-foot { margin-top: 20px; text-align: center; font-size: 14px; color: var(--c-text-sub); }
.auth-foot a { font-weight: 700; color: var(--c-primary); }
.auth-hint { margin-top: 18px; padding: 12px 14px; border-radius: 8px; background: var(--c-bg-soft); font-size: 12.5px; color: var(--c-text-muted); line-height: 1.6; }

/* Mypage ------------------------------------------------------------------ */
.mypage { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; align-items: start; }
@media (max-width: 900px) { .mypage { grid-template-columns: 1fr; gap: 22px; } }
.mypage__nav { border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; }
.mypage__nav a { display: block; padding: 14px 18px; font-size: 15px; font-weight: 600; border-bottom: 1px solid var(--c-line-soft); }
.mypage__nav a:last-child { border-bottom: 0; }
.mypage__nav a.is-active { background: var(--c-primary-soft); color: var(--c-primary); font-weight: 700; }

.stat-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-bottom: 34px; }
.stat { padding: 22px; border: 1px solid var(--c-line); border-radius: var(--radius); background: #fff; }
.stat b { display: block; font-size: 30px; font-weight: 800; letter-spacing: -.02em; }
.stat span { font-size: 13.5px; color: var(--c-text-muted); }
@media (max-width: 600px) { .stat-grid { grid-template-columns: 1fr; } }

.lecture-item { display: grid; grid-template-columns: 180px minmax(0, 1fr) auto; gap: 20px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--c-line); }
.lecture-item__thumb { border-radius: 8px; overflow: hidden; aspect-ratio: 16 / 9; background: var(--c-bg-soft); }
.lecture-item__thumb img { width: 100%; height: 100%; object-fit: cover; }
.lecture-item__title { font-size: 16.5px; font-weight: 700; }
.lecture-item__meta { margin-top: 6px; font-size: 13.5px; color: var(--c-text-muted); }
.lecture-item__progress { margin-top: 12px; max-width: 320px; }
.lecture-item__progress p { margin-bottom: 6px; font-size: 12.5px; color: var(--c-text-sub); }
@media (max-width: 700px) {
  .lecture-item { grid-template-columns: 120px minmax(0, 1fr); }
  .lecture-item > .lecture-item__actions { grid-column: 1 / -1; }
}

/* Support ----------------------------------------------------------------- */
.notice-view__head { padding: 26px 4px; border-top: 2px solid var(--c-text); border-bottom: 1px solid var(--c-line); }
.notice-view__title { font-size: 21px; font-weight: 800; line-height: 1.4; }
.notice-view__meta { margin-top: 10px; display: flex; gap: 16px; font-size: 13.5px; color: var(--c-text-muted); }
.notice-view__body { padding: 34px 4px 44px; border-bottom: 1px solid var(--c-line); }
.notice-nav { margin-top: 0; }
.notice-nav a, .notice-nav span { display: flex; gap: 16px; padding: 16px 4px; border-bottom: 1px solid var(--c-line); font-size: 14.5px; }
.notice-nav b { flex: 0 0 60px; color: var(--c-text-muted); font-weight: 600; }

.ask-item { padding: 20px 4px; border-bottom: 1px solid var(--c-line); }
.ask-item__head { display: flex; align-items: center; gap: 10px; }
.ask-item__title { font-size: 16px; font-weight: 700; }
.ask-item__date { margin-left: auto; font-size: 13px; color: var(--c-text-muted); }
.ask-item__body { margin-top: 10px; color: var(--c-text-sub); font-size: 14.5px; white-space: pre-line; }
.ask-item__answer { margin-top: 14px; padding: 16px 18px; border-radius: 8px; background: var(--c-bg-soft); font-size: 14.5px; color: var(--c-text-sub); white-space: pre-line; }
.ask-item__answer b { display: block; margin-bottom: 6px; color: var(--c-primary); }

/* Live -------------------------------------------------------------------- */
.live-item { display: grid; grid-template-columns: 240px minmax(0, 1fr) auto; gap: 22px; align-items: center; padding: 22px 0; border-bottom: 1px solid var(--c-line); }
.live-item__thumb { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16 / 9; background: var(--c-bg-soft); }
.live-item__thumb img { width: 100%; height: 100%; object-fit: cover; }
.live-item__thumb .badge { position: absolute; left: 10px; top: 10px; }
.live-item__title { font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
.live-item__meta { margin-top: 8px; font-size: 14px; color: var(--c-text-sub); }
.live-item__desc { margin-top: 8px; font-size: 14px; color: var(--c-text-muted); }
@media (max-width: 700px) {
  .live-item { grid-template-columns: 1fr; }
  .live-item__actions .btn { width: 100%; }
}

/* AI Zone ----------------------------------------------------------------- */