/* 작심49 (by 무우 스튜디오) — single stylesheet (marketing + member app + ebook viewer) */
:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --ink: #16181d;
  --ink-2: #4b5563;
  --ink-3: #8a94a3;
  --line: #e5e8ee;
  --brand: #2f6bff;
  --brand-dark: #1e4fd6;
  --brand-soft: #eaf0ff;
  --accent: #ff6b35;
  --ok: #0f9d58;
  --warn: #d93025;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(22, 24, 29, 0.07);
  --font: "Pretendard", "Pretendard Variable", -apple-system, BlinkMacSystemFont,
    "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  /* Korean wraps at word boundaries, never mid-word; long emails/URLs still break. */
  word-break: keep-all;
  overflow-wrap: break-word;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }
@media (max-width: 720px) {
  .wrap { padding: 0 26px; }
  .hero { padding: 60px 0 48px; }
  .hero p.lead { font-size: 16.5px; }
  section.block { padding: 44px 0; }
}

/* ---- Header / footer ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; gap: 18px; height: 62px; }
.site-header .logo { flex-shrink: 0; white-space: nowrap; }
.logo {
  font-weight: 900; font-size: 19px; color: var(--ink); letter-spacing: -0.4px;
  display: inline-flex; align-items: center; gap: 9px;
}
.logo b { color: var(--brand); }
.logo-badge {
  width: 30px; height: 30px; border-radius: 9px; background: #c8f04b; color: #16211a;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 900; letter-spacing: -0.5px; margin-left: 2px;
}
.logo-by { font-size: 10.5px; font-weight: 700; color: var(--ink-3); margin-left: 8px; letter-spacing: 0; }
@media (max-width: 720px) { .logo-by { display: none; } }
.nav {
  margin-left: auto; display: flex; align-items: center; gap: 16px; font-size: 14.5px;
  overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.nav::-webkit-scrollbar { display: none; }
.nav a { color: var(--ink-2); font-weight: 600; white-space: nowrap; flex-shrink: 0; }
@media (max-width: 720px) {
  .site-header .wrap { gap: 12px; height: 54px; }
  .nav { gap: 13px; font-size: 13.5px; }
  .logo { font-size: 17px; }
  .logo-badge { width: 26px; height: 26px; font-size: 12px; }
}
.nav a.cta {
  background: var(--brand); color: #fff; padding: 9px 16px; border-radius: 999px;
}
.nav a.cta:hover { background: var(--brand-dark); text-decoration: none; }

.site-footer {
  margin-top: 80px; padding: 36px 0 60px;
  border-top: 1px solid var(--line);
  color: var(--ink-3); font-size: 13px; background: var(--surface);
}
.site-footer .links { margin-bottom: 10px; display: flex; gap: 14px; flex-wrap: wrap; }
.site-footer .links a { color: var(--ink-2); }

/* ---- Buttons / forms ---- */
.btn {
  display: inline-block; border: 0; cursor: pointer; font-family: inherit;
  background: var(--brand); color: #fff; font-weight: 800; font-size: 15.5px;
  padding: 13px 26px; border-radius: 999px; transition: background 0.15s;
}
.btn:hover { background: var(--brand-dark); text-decoration: none; }
.btn.big { padding: 16px 38px; font-size: 17px; }
.btn.ghost { background: var(--surface); color: var(--brand); border: 1.5px solid var(--brand); }
.btn.ghost:hover { background: var(--brand-soft); }
.btn.subtle { background: var(--brand-soft); color: var(--brand-dark); }
.btn.small { padding: 7px 14px; font-size: 13.5px; }
.btn.danger { background: #fbe9e7; color: var(--warn); }

form.stack { display: grid; gap: 14px; }
label.field { display: grid; gap: 6px; font-weight: 700; font-size: 14px; }
label.field span.hint { font-weight: 400; color: var(--ink-3); font-size: 12.5px; }
input[type="text"], input[type="email"], input[type="password"], input[type="number"],
input[type="date"], input[type="url"], textarea, select {
  font-family: inherit; font-size: 15px; padding: 11px 13px;
  border: 1.5px solid var(--line); border-radius: 10px; background: var(--surface);
  width: 100%;
}
input:focus, textarea:focus { outline: 2px solid var(--brand-soft); border-color: var(--brand); }
textarea { min-height: 100px; resize: vertical; }
.check { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; font-weight: 500; }
.form-error {
  background: #fdecea; color: var(--warn); border-radius: 10px;
  padding: 12px 14px; font-size: 14px; font-weight: 600;
}

/* ---- Cards / layout ---- */
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow);
}
.grid { display: grid; gap: 18px; }
@media (min-width: 760px) {
  .grid.cols-2 { grid-template-columns: 1fr 1fr; }
  .grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
}
.muted { color: var(--ink-3); }
.small { font-size: 13px; }
.tag {
  display: inline-block; background: var(--brand-soft); color: var(--brand-dark);
  font-size: 12px; font-weight: 800; padding: 3px 10px; border-radius: 999px;
}
.tag.hot { background: #fff0e8; color: var(--accent); }
.tag.ok { background: #e6f4ea; color: var(--ok); }
.tag.warn { background: #fdecea; color: var(--warn); }

/* ---- Landing ---- */
.hero { padding: 84px 0 60px; text-align: center; }
.hero .eyebrow { color: var(--accent); font-weight: 900; letter-spacing: 1px; font-size: 14px; }
.hero h1 {
  font-size: clamp(30px, 5.4vw, 52px); line-height: 1.22; margin: 14px 0 18px;
  letter-spacing: -1.2px; font-weight: 900;
}
.hero h1 em { font-style: normal; color: var(--brand); }
.hero p.lead { font-size: 18px; color: var(--ink-2); max-width: 640px; margin: 0 auto 30px; }
.hero .cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .sub-note { margin-top: 14px; font-size: 13px; color: var(--ink-3); }

section.block { padding: 56px 0; }
section.block.alt { background: var(--surface); border-block: 1px solid var(--line); }
.section-title { text-align: center; margin-bottom: 8px; font-size: clamp(24px, 3.6vw, 34px); letter-spacing: -0.8px; }
.section-sub { text-align: center; color: var(--ink-2); margin: 0 auto 36px; max-width: 560px; }

.problem-list { display: grid; gap: 12px; max-width: 640px; margin: 0 auto; }
.problem-list .item {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 16px 20px; font-weight: 600; display: flex; gap: 12px; align-items: baseline;
}
.problem-list .item::before { content: "✗"; color: var(--warn); font-weight: 900; }

.vol-card h3 { margin: 8px 0 6px; font-size: 18px; }
.vol-card .vol-no { color: var(--brand); font-weight: 900; font-size: 13px; }
.vol-card p { color: var(--ink-2); font-size: 14.5px; margin: 0; }

.timeline { display: grid; gap: 10px; }
.timeline .week {
  display: grid; grid-template-columns: 88px 110px 1fr; gap: 14px; align-items: baseline;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px;
}
.timeline .week b.wk { color: var(--brand); }
.timeline .week .theme { font-weight: 800; }
.timeline .week .sum { color: var(--ink-2); font-size: 14px; }
@media (max-width: 620px) { .timeline .week { grid-template-columns: 1fr; gap: 4px; } }

/* pricing */
.price-grid { display: grid; gap: 18px; align-items: stretch; }
@media (min-width: 700px) { .price-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .price-grid { grid-template-columns: repeat(4, 1fr); } }
.price-card { position: relative; display: flex; flex-direction: column; }
.price-card.featured { border: 2px solid var(--brand); box-shadow: 0 16px 40px rgba(47, 107, 255, 0.16); }
.price-card .badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff; font-size: 12px; font-weight: 900;
  padding: 4px 14px; border-radius: 999px; white-space: nowrap;
}
.price-card h3 { margin: 4px 0 2px; }
.price-card .tagline { color: var(--ink-2); font-size: 13.5px; min-height: 40px; }
.price-card .price { margin: 12px 0 4px; }
.price-card .price .now { font-size: 30px; font-weight: 900; letter-spacing: -1px; }
.price-card .price .was { color: var(--ink-3); text-decoration: line-through; font-size: 14px; margin-left: 8px; }
.price-card ul { padding-left: 18px; color: var(--ink-2); font-size: 14px; flex: 1; }
.price-card .btn { width: 100%; text-align: center; }

.faq details {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 20px; margin-bottom: 10px;
}
.faq summary { font-weight: 800; cursor: pointer; }
.faq p { color: var(--ink-2); margin: 10px 0 2px; }

.notice-bar {
  background: var(--brand); color: #fff; text-align: center; font-size: 14px;
  font-weight: 700; padding: 9px 16px;
}

/* ---- Member area ---- */
.page-title { margin: 34px 0 18px; font-size: 26px; letter-spacing: -0.6px; }
.stat-row { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.stat {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 16px;
}
.stat .num { font-size: 24px; font-weight: 900; letter-spacing: -0.5px; }
.stat .lbl { font-size: 12.5px; color: var(--ink-3); font-weight: 600; }

table.data { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--surface); }
table.data th, table.data td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; }
table.data th { font-size: 12.5px; color: var(--ink-3); font-weight: 700; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }

/* challenge grid */
.day-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.day-cell {
  aspect-ratio: 1; border-radius: 10px; border: 1.5px solid var(--line);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px; color: var(--ink-3); background: var(--surface);
  text-decoration: none;
}
.day-cell:hover { border-color: var(--brand); text-decoration: none; }
.day-cell.done { background: var(--brand); border-color: var(--brand); color: #fff; }
.day-cell.today { border-color: var(--accent); color: var(--accent); }
.day-cell.done.today { background: var(--accent); border-color: var(--accent); color: #fff; }
.day-cell.future { opacity: 0.45; pointer-events: none; }
.day-cell .up { font-size: 10px; font-weight: 600; }
.progress-track { background: var(--line); border-radius: 999px; height: 10px; overflow: hidden; }
.progress-fill { background: linear-gradient(90deg, var(--brand), var(--accent)); height: 100%; }

.week-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0 16px; }
.week-tabs a {
  padding: 7px 13px; border-radius: 999px; border: 1.5px solid var(--line);
  font-size: 13px; font-weight: 700; color: var(--ink-2); background: var(--surface);
}
.week-tabs a.done { border-color: var(--ok); color: var(--ok); }

/* ==== Book design ==================================================== */
/* Per-volume cover palettes */
.vol-1 { --cov1: #16337a; --cov2: #2f6bff; --cov-ink: #ffffff; --cov-accent: #ffd166; }
.vol-2 { --cov1: #0b4f43; --cov2: #14907a; --cov-ink: #ffffff; --cov-accent: #ffe08a; }
.vol-3 { --cov1: #8a2b12; --cov2: #e2582a; --cov-ink: #ffffff; --cov-accent: #ffe3b3; }
.vol-4 { --cov1: #3b2470; --cov2: #7c4dcc; --cov-ink: #ffffff; --cov-accent: #a5f3d0; }
.vol-5 { --cov1: #6b4a08; --cov2: #c99012; --cov-ink: #fffdf5; --cov-accent: #1e2733; }

:root {
  --paper: #fbf8f1;
  --paper-edge: #efe9dc;
  --book-ink: #2b2620;
  --book-ink-2: #6b6154;
  --serif: "Noto Serif KR", "Apple SD Gothic Neo", serif;
}

/* Cover (shared component). .cover is the physical book front. */
.cover {
  position: relative; width: 100%; aspect-ratio: 2 / 3;
  border-radius: 5px 16px 16px 5px; overflow: hidden;
  background:
    radial-gradient(120% 90% at 85% -10%, rgba(255, 255, 255, 0.22), transparent 55%),
    linear-gradient(150deg, var(--cov2), var(--cov1) 72%);
  color: var(--cov-ink);
  box-shadow: 0 24px 50px rgba(22, 24, 29, 0.35), 0 6px 14px rgba(22, 24, 29, 0.18);
  display: flex; flex-direction: column; padding: 9% 10% 8% 14%;
}
.cover::before { /* spine groove */
  content: ""; position: absolute; inset: 0 auto 0 7%; width: 2px;
  background: rgba(0, 0, 0, 0.28); box-shadow: 2px 0 3px rgba(255, 255, 255, 0.18);
}
.cover::after { /* page block on fore-edge */
  content: ""; position: absolute; inset: 1.5% 0 1.5% auto; width: 5px;
  background: repeating-linear-gradient(to bottom, #f5f0e6 0 2px, #d9d2c2 2px 3px);
  border-radius: 0 3px 3px 0;
}
.cover .series {
  font-size: 10.5px; font-weight: 800; letter-spacing: 2.5px;
  text-transform: uppercase; opacity: 0.85;
}
.cover .volno {
  font-family: var(--serif); font-weight: 900; font-size: clamp(30px, 7cqw, 44px);
  color: var(--cov-accent); margin-top: 10%; line-height: 1;
}
.cover .cov-title {
  font-family: var(--serif); font-weight: 900; line-height: 1.32;
  font-size: clamp(20px, 6.4cqw, 34px); letter-spacing: -0.5px; margin-top: 12px;
  word-break: keep-all;
}
.cover .cov-subtitle {
  font-family: var(--serif); font-size: clamp(12px, 3cqw, 15.5px);
  opacity: 0.92; margin-top: 12px; line-height: 1.6; word-break: keep-all;
}
.cover .cov-author { margin-top: auto; font-size: 13.5px; font-weight: 700; }
.cover .cov-pub {
  font-size: 10px; letter-spacing: 3px; font-weight: 800; opacity: 0.75; margin-top: 6px;
  text-transform: uppercase;
}

/* Small cover used on cards/lists */
.mini-book { container-type: inline-size; width: 128px; flex: 0 0 auto; }
.mini-book .cover { border-radius: 3px 9px 9px 3px; box-shadow: 0 10px 22px rgba(22,24,29,0.25); }
.mini-book .cover .cov-subtitle { display: none; }
.mini-book .cover .cov-title { font-size: 15px; }
.mini-book .cover .volno { font-size: 20px; }
.mini-book .cover .cov-author { font-size: 8px; }
.mini-book .cover .cov-pub { font-size: 6px; letter-spacing: 2px; }
.mini-book .cover .series { font-size: 6px; letter-spacing: 1.5px; }
.book-card { display: flex; gap: 18px; align-items: center; }
.book-card .info h3 { margin: 6px 0 4px; font-size: 17px; }
.book-card .info p { color: var(--ink-2); font-size: 13.5px; margin: 0; }

/* Reading progress bar */
.read-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--cov2, var(--brand)), var(--cov-accent, var(--accent)));
  z-index: 90; transition: width 0.1s linear;
}

/* Book shell: warm paper reading room */
.book-shell { background: var(--paper-edge); min-height: 100vh; padding: 26px 0 90px; }
.book-shell .topbar {
  max-width: 780px; margin: 0 auto 22px; padding: 0 20px;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  font-size: 14px;
}

/* Cover hero at the top of the reader */
.book-hero {
  max-width: 780px; margin: 0 auto 30px; padding: 40px 20px;
  display: grid; grid-template-columns: 250px 1fr; gap: 44px; align-items: center;
}
.book-hero .cover-wrap { container-type: inline-size; perspective: 900px; }
.book-hero .cover { transform: rotateY(6deg); }
.book-hero .meta h1 {
  font-family: var(--serif); font-weight: 900; letter-spacing: -1px;
  font-size: clamp(26px, 4vw, 38px); margin: 6px 0 8px; color: var(--book-ink);
}
.book-hero .meta .sub { font-family: var(--serif); color: var(--book-ink-2); font-size: 17px; margin: 0 0 18px; }
.book-hero .meta .byline { color: var(--book-ink-2); font-size: 14px; }
.book-hero .meta .byline b { color: var(--book-ink); }
@media (max-width: 680px) {
  .book-hero { grid-template-columns: 1fr; justify-items: center; text-align: center; gap: 26px; }
  .book-hero .cover-wrap { width: 210px; }
}

/* Paper page */
.book-page {
  max-width: 780px; margin: 0 auto; background: var(--paper);
  border: 1px solid #e6dfd0; border-radius: 4px;
  box-shadow: 0 1px 0 #fff inset, 0 18px 45px rgba(60, 50, 30, 0.12);
  padding: clamp(28px, 6vw, 72px);
}
.book-page + .book-page { margin-top: 26px; }

/* Table of contents */
.book-toc h2 {
  font-family: var(--serif); text-align: center; font-size: 20px; letter-spacing: 6px;
  color: var(--book-ink); margin: 0 0 26px; font-weight: 900;
}
.book-toc ol { list-style: none; margin: 0; padding: 0; }
.book-toc li { margin: 0; }
.book-toc a {
  display: flex; align-items: baseline; gap: 10px; padding: 10px 2px;
  color: var(--book-ink); text-decoration: none; font-family: var(--serif); font-size: 15.5px;
}
.book-toc a:hover .t { color: var(--brand-dark); }
.book-toc .t { flex: 0 1 auto; }
.book-toc .dots { flex: 1; border-bottom: 1.5px dotted #c9bfa9; transform: translateY(-4px); }
.book-toc .n { color: var(--book-ink-2); font-size: 13px; }

/* Body typography — set like a printed page */
article.ebook {
  font-family: var(--serif); font-size: 16.5px; line-height: 2.0;
  color: var(--book-ink); word-break: keep-all; overflow-wrap: break-word;
}
article.ebook h1 { display: none; } /* the cover hero already carries the title */
article.ebook h2 {
  font-family: var(--serif); font-weight: 900; text-align: center;
  font-size: 23px; letter-spacing: -0.3px; color: var(--book-ink);
  margin: 84px 0 14px; line-height: 1.45;
}
article.ebook h2:first-of-type { margin-top: 30px; }
article.ebook h2::before {
  content: "❦"; display: block; font-size: 15px; color: var(--cov2, var(--brand));
  margin-bottom: 18px; letter-spacing: 0;
}
article.ebook h2::after {
  content: ""; display: block; width: 44px; height: 2.5px; margin: 16px auto 0;
  background: var(--cov2, var(--brand)); opacity: 0.45;
}
article.ebook h3 {
  font-family: var(--serif); font-size: 17.5px; font-weight: 800;
  margin: 44px 0 10px; color: var(--book-ink);
}
article.ebook h2 + p, article.ebook h3 + p { text-indent: 0; }
article.ebook p { margin: 0 0 4px; text-indent: 0; }
article.ebook p + p { text-indent: 1em; }
article.ebook strong { font-weight: 800; color: #191510; }
article.ebook em { font-style: normal; box-shadow: inset 0 -0.5em 0 rgba(255, 209, 102, 0.35); }
article.ebook blockquote {
  margin: 26px 8px; padding: 2px 22px; border-left: 3px solid var(--cov2, var(--brand));
  color: var(--book-ink-2); font-size: 15.5px;
}
article.ebook ul, article.ebook ol { margin: 10px 0 18px; padding-left: 26px; }
article.ebook li { margin-bottom: 6px; }
article.ebook table.tbl {
  width: 100%; border-collapse: collapse; margin: 22px 0; font-size: 13.8px;
  font-family: var(--font); line-height: 1.6; background: #fffdf8;
}
article.ebook table.tbl th, article.ebook table.tbl td {
  border: 1px solid #ddd3bf; padding: 9px 11px; text-align: left; vertical-align: top;
}
article.ebook table.tbl th { background: #f3edde; font-weight: 800; color: var(--book-ink); }
article.ebook .callout {
  border: 1px solid #ddd3bf; border-radius: 4px; padding: 18px 22px; margin: 26px 0;
  background: #f6f1e4; font-size: 15px; line-height: 1.9;
}
article.ebook .callout h4 {
  margin: 0 0 8px; font-size: 12.5px; letter-spacing: 2px; font-family: var(--font);
  color: var(--cov1, var(--brand-dark)); text-transform: uppercase;
}
article.ebook .callout.key { border-left: 4px solid var(--cov2, var(--brand)); }
article.ebook .callout.warn { background: #f9ece5; border-color: #e4c4b2; border-left: 4px solid #b8502e; }
article.ebook .callout.warn h4 { color: #a33d1c; }
article.ebook .callout.challenge {
  background: #eef6e6; border-color: #cfe3b8; border-left: 4px solid #6aa93f;
}
article.ebook .callout.challenge h4 { color: #3f7222; }
article.ebook .callout p { text-indent: 0; margin-bottom: 8px; }
article.ebook .callout p:last-child { margin-bottom: 0; }
article.ebook .template-box {
  border: 1px solid #d8cdb6; border-radius: 4px; margin: 26px 0; overflow: hidden;
  background: #fffdf8;
}
article.ebook .template-box h4 {
  margin: 0; padding: 10px 18px; background: #efe7d3; color: var(--book-ink);
  font-size: 12.5px; letter-spacing: 1.5px; font-family: var(--font);
}
article.ebook .template-box pre {
  margin: 0; padding: 18px; font-size: 13px; line-height: 1.75;
  white-space: pre-wrap; word-break: break-word;
  font-family: "SF Mono", ui-monospace, Menlo, monospace; color: #3a3428;
  overflow-x: auto;
}
article.ebook ul.checklist { list-style: none; padding-left: 4px; }
article.ebook ul.checklist li { padding-left: 30px; position: relative; margin-bottom: 9px; }
article.ebook ul.checklist li::before {
  content: "☐"; position: absolute; left: 2px; top: -1px;
  color: var(--cov2, var(--brand)); font-size: 18px;
}

/* Colophon (판권지) */
.colophon {
  text-align: center; font-family: var(--serif); color: var(--book-ink-2);
  font-size: 13px; line-height: 2.1;
}
.colophon .rule { width: 60px; height: 1px; background: #c9bfa9; margin: 0 auto 22px; }
.colophon .title { font-size: 16px; font-weight: 900; color: var(--book-ink); }
.colophon .warn-line { margin-top: 16px; font-size: 12px; }

/* Reader bottom navigation */
.book-nav {
  max-width: 780px; margin: 30px auto 0; padding: 0 20px;
  display: flex; justify-content: space-between; gap: 12px;
}

/* ---- Challenge hero (goal + reward) ---- */
.challenge-hero {
  background: radial-gradient(120% 140% at 15% 0%, #1d4d33, #122b1e 70%);
  color: #eef7ee; border-radius: 18px; padding: 30px 34px; margin: 0 0 18px;
  display: grid; gap: 26px;
}
@media (min-width: 820px) { .challenge-hero { grid-template-columns: 1.4fr 1fr; align-items: center; } }
.challenge-hero .eyebrow {
  color: #c8f04b; font-weight: 900; letter-spacing: 2.5px; font-size: 12px; margin-bottom: 10px;
}
.challenge-hero .hero-goal {
  font-size: clamp(19px, 2.6vw, 26px); font-weight: 900; letter-spacing: -0.5px; line-height: 1.4;
  word-break: keep-all;
}
.challenge-hero .hero-reward-label { margin-top: 14px; font-size: 13px; color: #b9d3bd; font-weight: 700; }
.challenge-hero .hero-reward {
  color: #c8f04b; font-size: clamp(22px, 3.2vw, 32px); font-weight: 900; letter-spacing: -0.5px;
  word-break: keep-all;
}
.challenge-hero .hero-pct { font-size: 34px; font-weight: 900; }
.challenge-hero .hero-days { font-size: 13px; color: #b9d3bd; margin: 2px 0 10px; font-weight: 700; }
.challenge-hero .hero-track { background: rgba(255, 255, 255, 0.16); }
.challenge-hero .hero-track .progress-fill { background: #c8f04b; }
.challenge-hero .hero-note { margin-top: 12px; font-size: 12.5px; color: #b9d3bd; }

/* ---- Social login ---- */
.btn-social {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 12px 16px; border-radius: 10px; font-weight: 700; font-size: 15px;
  text-decoration: none; border: 1.5px solid var(--line); transition: filter 0.15s;
}
.btn-social:hover { text-decoration: none; filter: brightness(0.96); }
.btn-social.google { background: #fff; color: #1f1f1f; }
.btn-social.google .g-mark {
  width: 22px; height: 22px; border-radius: 50%; font-size: 13px; font-weight: 900;
  display: inline-flex; align-items: center; justify-content: center;
  background: conic-gradient(#ea4335 0 25%, #fbbc05 25% 50%, #34a853 50% 75%, #4285f4 75% 100%);
  color: #fff;
}
.btn-social.kakao { background: #fee500; color: #191919; border-color: #fee500; }
.or-divider {
  display: flex; align-items: center; gap: 12px; margin: 4px 0 14px;
  color: var(--ink-3); font-size: 12.5px;
}
.or-divider::before, .or-divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* ---- Record modal (day check-in / weekly review) ---- */
dialog.record-modal {
  border: 0; border-radius: 18px; padding: 26px 26px 30px;
  width: min(720px, calc(100vw - 32px)); max-height: min(86vh, 900px);
  overflow-y: auto; background: var(--bg); box-shadow: 0 30px 80px rgba(22, 24, 29, 0.35);
}
dialog.record-modal::backdrop { background: rgba(16, 20, 28, 0.55); backdrop-filter: blur(3px); }
.record-modal .modal-close {
  position: sticky; top: 0; float: right; margin-left: 12px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-2);
  width: 34px; height: 34px; border-radius: 999px; cursor: pointer; font-size: 14px;
}
.record-modal .modal-close:hover { color: var(--ink); border-color: var(--ink-3); }
.modal-head { margin-bottom: 16px; }
.eyebrow-sm { color: var(--accent); font-weight: 900; letter-spacing: 2px; font-size: 11px; }

/* ---- Admin ---- */
.admin-nav { display: flex; gap: 10px; flex-wrap: wrap; margin: 22px 0; }
.admin-nav a {
  padding: 8px 16px; border-radius: 999px; background: var(--surface);
  border: 1.5px solid var(--line); font-weight: 700; font-size: 14px; color: var(--ink-2);
}
.admin-nav a.on { border-color: var(--brand); color: var(--brand); }
.inline-form { display: inline; }