/* 넥스트유니온 AI 강사 1급 과정 — 브랜드: navy #062a5c · sky #3aa0ff · mint #22c7a9 · 베이지 배경 */
:root {
  --bg: #f5f4f1;
  --bg-alt: #eceae4;
  --navy: #062a5c;
  --navy-deep: #04193a;
  --sky: #3aa0ff;
  --mint: #22c7a9;
  --ink: #1c2430;
  --sub: #5b6b82;
  --line: #e2ded6;
  --card: #ffffff;
  --radius: 22px;
}
* { box-sizing: border-box; min-width: 0; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Apple SD Gothic Neo', 'Malgun Gothic', 'Noto Sans KR', sans-serif;
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: break-word;
  overflow-x: hidden;
}
img, svg, video { max-width: 100%; }
a { color: var(--navy); }
button { font-family: inherit; }

.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

/* 상단 바 */
.top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(245, 244, 241, .92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { font-weight: 900; letter-spacing: .12em; color: var(--navy); text-decoration: none; font-size: 15px; }
.brand small { display: block; font-size: 10px; letter-spacing: .2em; color: var(--sub); font-weight: 700; }
.top-cta {
  background: var(--navy); color: #fff; text-decoration: none; font-weight: 700; font-size: 14px;
  padding: 9px 18px; border-radius: 999px; white-space: nowrap;
}

/* 섹션 공통 */
.sec { padding: 72px 0; }
.sec--alt { background: var(--bg-alt); }
.eyebrow { color: var(--sky); font-weight: 800; font-size: 14px; letter-spacing: .08em; margin: 0 0 10px; }
.sec h2 { font-size: clamp(24px, 5.4vw, 38px); line-height: 1.3; margin: 0 0 14px; color: var(--navy); }
.sec .lead { color: var(--sub); font-size: 16px; margin: 0 0 32px; }

/* hero */
.hero { padding: 84px 0 72px; text-align: center; background: linear-gradient(180deg, #f8f7f4 0%, var(--bg) 100%); }
.hero h1 { font-size: clamp(30px, 7vw, 52px); line-height: 1.25; margin: 0 0 16px; color: var(--navy); }
.hero h1 .accent { color: var(--sky); }
.hero .sub { font-size: clamp(16px, 3.6vw, 20px); color: var(--sub); margin: 0 0 24px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 0 0 18px; padding: 0; list-style: none; }
.chip {
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 7px 16px; font-size: 14px; font-weight: 700; color: var(--navy);
}
.chip--mint { background: #e2f8f3; border-color: #bdeee2; color: #0b6d5b; }
.btn-primary {
  display: inline-block; background: var(--navy); color: #fff; text-decoration: none;
  font-weight: 800; font-size: 17px; padding: 15px 34px; border-radius: 999px; border: 0; cursor: pointer;
  box-shadow: 0 10px 24px rgba(6, 42, 92, .22);
}
.btn-primary:hover { background: var(--navy-deep); }
.btn-ghost {
  display: inline-block; background: #fff; color: var(--navy); border: 1px solid var(--line);
  font-weight: 700; font-size: 15px; padding: 11px 24px; border-radius: 999px; text-decoration: none; cursor: pointer;
}
.hero-note { font-size: 13px; color: var(--sub); margin-top: 14px; }

/* 카드 그리드 / marquee */
.marquee { overflow: hidden; position: relative; margin-top: 28px; }
.marquee__track { display: flex; width: max-content; animation: marquee 48s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; } }
.marquee__group { display: flex; gap: 14px; padding-right: 14px; }
.mcard {
  width: 250px; flex: none; background: var(--card); border-radius: var(--radius);
  padding: 20px; border: 1px solid var(--line);
}
.mcard .ico { font-size: 26px; }
.mcard h3 { font-size: 16px; margin: 10px 0 6px; color: var(--navy); }
.mcard p { font-size: 13.5px; color: var(--sub); margin: 0; }
.mcard .tag { display: inline-block; margin-top: 10px; font-size: 11.5px; color: #8a7b55; background: #f4ecd7; border-radius: 6px; padding: 2px 8px; font-weight: 700; }

/* 후기 */
.review-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.review-card { background: var(--card); border-radius: var(--radius); border: 1px solid var(--line); padding: 22px; }
.review-card .stars { color: #f5a623; letter-spacing: 2px; font-size: 15px; }
.review-card p { font-size: 14.5px; margin: 10px 0 8px; }
.review-card .who { font-size: 12.5px; color: var(--sub); font-weight: 700; }
.placeholder {
  border: 2px dashed #cfc9bd; border-radius: var(--radius); padding: 40px 24px; text-align: center; color: var(--sub);
  background: rgba(255, 255, 255, .5); font-size: 15px;
}

/* 스토리 */
.story-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.story-card { background: var(--navy); color: #dce9fb; border-radius: var(--radius); padding: 28px; }
.story-card .q { font-size: 32px; color: var(--sky); line-height: 1; font-weight: 900; }
.story-card h3 { color: #fff; font-size: 19px; margin: 8px 0 10px; }
.story-card p { font-size: 14.5px; margin: 0; color: #b9cce8; }

/* problem / 번호 카드 */
.num-list { display: grid; gap: 14px; }
.num-card { display: flex; gap: 16px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 20px 22px; }
.num-card .num { font-weight: 900; color: var(--sky); font-size: 20px; flex: none; }
.num-card h3 { margin: 0 0 4px; font-size: 16.5px; color: var(--navy); }
.num-card p { margin: 0; font-size: 14px; color: var(--sub); }

/* target */
.target-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; }
.target-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.target-card .ico { font-size: 28px; }
.target-card h3 { font-size: 16px; margin: 10px 0 6px; color: var(--navy); }
.target-card p { font-size: 13.5px; color: var(--sub); margin: 0; }

/* curriculum timeline */
.gain-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-bottom: 36px; }
.timeline { list-style: none; margin: 0; padding: 0; border-left: 3px solid #d7e7fb; }
.timeline li { position: relative; padding: 0 0 20px 22px; }
.timeline li::before {
  content: ''; position: absolute; left: -8px; top: 7px; width: 13px; height: 13px; border-radius: 50%;
  background: var(--sky); border: 3px solid var(--bg);
}
.timeline .t { font-weight: 800; color: var(--navy); font-size: 14px; font-variant-numeric: tabular-nums; }
.timeline .d { font-size: 15px; }
.timeline .lunch .t { color: var(--mint); }

/* followup 특전 */
.perk-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.perk-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.perk-card .ico { font-size: 26px; }
.perk-card h3 { font-size: 16px; margin: 10px 0 6px; color: var(--navy); }
.perk-card p { font-size: 13.5px; color: var(--sub); margin: 0; }
.badge-note { display: inline-block; background: #fff4d6; color: #8a6d1f; border-radius: 8px; font-size: 12px; font-weight: 700; padding: 3px 10px; margin-top: 10px; }

/* 체크 목록 */
.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.check-list li { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; display: flex; gap: 12px; }
.check-list .ck { color: var(--mint); font-weight: 900; flex: none; }
.check-list h3 { margin: 0 0 2px; font-size: 15.5px; color: var(--navy); }
.check-list p { margin: 0; font-size: 13.5px; color: var(--sub); }

/* instructor */
.inst-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; gap: 20px; flex-wrap: wrap; }
.inst-avatar {
  width: 84px; height: 84px; flex: none; border-radius: 50%;
  background: linear-gradient(140deg, var(--sky), var(--mint)); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 30px; font-weight: 900;
}
.inst-card h3 { margin: 0 0 4px; font-size: 19px; color: var(--navy); }
.inst-card .role { color: var(--sub); font-size: 14px; margin: 0 0 10px; }
.inst-card ul { margin: 0; padding-left: 18px; font-size: 14px; color: var(--ink); }
.todo { color: #a05c10; background: #fdf1dc; border-radius: 6px; padding: 1px 6px; font-size: 12.5px; font-weight: 700; }

/* fit */
.fit-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.fit-col { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.fit-col h3 { margin: 0 0 14px; font-size: 16.5px; color: var(--navy); }
.fit-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: 14.5px; }
.fit-col .ok::before { content: '✓ '; color: var(--mint); font-weight: 900; }
.fit-col .no::before { content: '✕ '; color: #d4604f; font-weight: 900; }

/* apply */
.apply-cards { display: grid; gap: 14px; }
.apply-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px;
  display: flex; flex-wrap: wrap; gap: 12px 18px; align-items: center; justify-content: space-between;
}
.apply-card .meta { flex: 1 1 260px; }
.apply-card .cohort { font-weight: 900; color: var(--navy); font-size: 17px; margin-right: 8px; }
.apply-card .status-badge { font-size: 12px; font-weight: 800; border-radius: 999px; padding: 3px 10px; vertical-align: 2px; }
.st-open { background: #e2f8f3; color: #0b6d5b; }
.st-few { background: #fdeedd; color: #a05c10; }
.st-closed { background: #ece9e2; color: #8b8577; }
.apply-card .when { font-size: 14.5px; margin-top: 6px; }
.apply-card .place { font-size: 13px; color: var(--sub); margin-top: 2px; }
.apply-card .price { text-align: right; }
.apply-card .strike { color: #a39b8a; text-decoration: line-through; font-size: 13.5px; }
.apply-card .now { font-size: 21px; font-weight: 900; color: var(--navy); }
.apply-card .left { font-size: 12.5px; color: #a05c10; font-weight: 700; }
.apply-card .go {
  background: var(--navy); color: #fff; text-decoration: none; font-weight: 800; font-size: 15px;
  padding: 11px 22px; border-radius: 999px; white-space: nowrap;
}
.apply-card .go[aria-disabled="true"] { background: #c9c4b8; pointer-events: none; }
.sale-note { margin: 18px 0 0; font-size: 13.5px; color: var(--sub); }
.apply-info { margin-top: 24px; display: grid; gap: 8px; font-size: 14px; }
.apply-info b { color: var(--navy); }
details.past { margin-top: 20px; }
details.past summary { cursor: pointer; font-weight: 700; color: var(--sub); font-size: 14.5px; }
details.past .apply-cards { margin-top: 12px; opacity: .72; }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 0 20px; }
.faq summary { cursor: pointer; font-weight: 700; font-size: 15.5px; padding: 17px 0; color: var(--navy); list-style: none; display: flex; justify-content: space-between; gap: 10px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--sky); font-weight: 900; }
.faq details[open] summary::after { content: '–'; }
.faq .a { padding: 0 0 17px; font-size: 14.5px; color: var(--sub); }

/* final + 띠 배너 */
.final { text-align: center; background: var(--navy); color: #fff; }
.final h2 { color: #fff; }
.final .lead { color: #b9cce8; }
.band { border-radius: 18px; padding: 18px 22px; display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; justify-content: space-between; margin-top: 16px; text-align: left; }
.band--adv { background: #0b3b7a; color: #dce9fb; }
.band--biz { background: #0d5e50; color: #d9f6ef; }
.band b { color: #fff; }
.band a { color: #fff; font-weight: 800; white-space: nowrap; }

/* sticky bar */
.sticky-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  background: rgba(6, 42, 92, .97); color: #fff;
  transform: translateY(110%); transition: transform .25s ease;
  padding: 10px max(14px, env(safe-area-inset-left)) calc(10px + env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-right));
}
.sticky-bar.is-visible { transform: translateY(0); }
.sticky-bar .inner { max-width: 960px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.sticky-bar .txt { font-size: 14px; font-weight: 700; }
.sticky-bar .txt small { display: block; font-weight: 400; color: #9fd3ff; font-size: 12px; }
.sticky-bar a { background: var(--mint); color: #03312b; font-weight: 900; text-decoration: none; padding: 11px 22px; border-radius: 999px; white-space: nowrap; font-size: 15px; }

/* footer */
footer { background: var(--navy-deep); color: #8fa3c2; padding: 44px 0 60px; font-size: 13px; }
footer .wrap { display: grid; gap: 4px; }
footer b { color: #cfe0f6; }
footer a { color: #9fd3ff; }

/* ---- 결제 화면 ---- */
.pay-wrap { max-width: 640px; margin: 0 auto; padding: 24px 16px 80px; }
.pay-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-bottom: 16px; }
.pay-card h1 { font-size: 21px; color: var(--navy); margin: 0 0 10px; }
.pay-card h2 { font-size: 16px; color: var(--navy); margin: 0 0 14px; }
.kv { display: grid; grid-template-columns: 72px 1fr; gap: 6px 12px; font-size: 14.5px; margin: 0; }
.kv dt { color: var(--sub); }
.kv dd { margin: 0; font-weight: 600; }
.tabs { display: flex; gap: 6px; margin-bottom: 14px; }
.tabs button { flex: 1; border: 1px solid var(--line); background: #faf9f6; border-radius: 10px; padding: 10px; font-size: 14px; font-weight: 700; color: var(--sub); cursor: pointer; }
.tabs button.on { background: var(--navy); border-color: var(--navy); color: #fff; }
.tab-body { font-size: 14px; color: var(--ink); }
.tab-body ul { padding-left: 18px; margin: 8px 0; }
.opt { display: block; border: 2px solid var(--line); border-radius: 14px; padding: 14px 16px; margin-bottom: 10px; cursor: pointer; background: #fff; }
.opt.on { border-color: var(--sky); background: #f2f8ff; }
.opt .nm { font-weight: 800; color: var(--navy); }
.opt .pr { float: right; text-align: right; }
.opt .strike { color: #a39b8a; text-decoration: line-through; font-size: 12.5px; display: block; }
.opt .now { font-weight: 900; color: var(--navy); }
.opt .left { font-size: 12px; color: #a05c10; font-weight: 700; }
.opt.soldout { opacity: .5; cursor: not-allowed; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13.5px; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.field label .req { color: #d4604f; }
.field input[type="text"], .field input[type="tel"], .field input[type="email"], .field textarea, .field select {
  width: 100%; border: 1px solid #d5d0c6; border-radius: 10px; padding: 11px 12px; font-size: 15px; background: #fff; font-family: inherit;
}
.field textarea { min-height: 84px; resize: vertical; }
.agree-row { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; margin-bottom: 10px; }
.agree-row input { margin-top: 3px; }
.pm-row { display: flex; gap: 10px; }
.pm { flex: 1; border: 2px solid var(--line); background: #fff; border-radius: 12px; padding: 13px; font-size: 15px; font-weight: 700; cursor: pointer; color: var(--navy); }
.pm.on { border-color: var(--mint); background: #effbf8; }
.pm:disabled { color: #b0a999; cursor: not-allowed; background: #f4f2ed; }
.pm small { display: block; font-size: 11.5px; font-weight: 400; color: #a05c10; }
.pay-submit { width: 100%; margin-top: 8px; font-size: 17px; padding: 16px; }
.msg-err { background: #fdecea; color: #b3362a; border-radius: 10px; padding: 12px 14px; font-size: 14px; margin: 10px 0; }
.done-box { text-align: center; }
.done-box .big { font-size: 40px; }
.bank-box { background: #f0f6ff; border-radius: 12px; padding: 16px; text-align: left; margin: 16px 0; font-size: 14.5px; }
.bank-box b { color: var(--navy); }
.bank-box .amount { font-size: 20px; font-weight: 900; color: var(--navy); }

/* 작은 화면(390px) 안전장치: 넘침·가로 스크롤 방지 */
@media (max-width: 480px) {
  .wrap, .pay-wrap { padding-left: 16px; padding-right: 16px; }
  .sec { padding: 56px 0; }
  .apply-card .price { text-align: left; }
  .apply-card .go { width: 100%; text-align: center; }
  .sticky-bar .txt { font-size: 13px; }
  .kv { grid-template-columns: 64px 1fr; }
}