:root {
  --bg: #f6f1e8;
  --bg-soft: #fbf8f3;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --text: #1f241f;
  --muted: #69726a;
  --line: rgba(35, 41, 36, 0.08);
  --brand: #7a5b3a;
  --brand-dark: #63482c;
  --sage: #81917d;
  --success: #26624e;
  --warning: #8f6a28;
  --danger: #a24747;
  --shadow: 0 24px 60px rgba(52, 43, 28, 0.08);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, sans-serif; color: var(--text); background: linear-gradient(180deg, #f8f4ee 0%, #f2ecdf 100%); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; background: #fff; color: var(--text); }
textarea { resize: vertical; }
details summary { cursor: pointer; }

.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.narrow { width: min(860px, 100%); margin: 0 auto; }
.section { padding: 88px 0; }
.section-tight { padding: 24px 0; }
.section-soft { background: rgba(255, 255, 255, 0.35); }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: 0.16em; color: var(--brand); text-transform: uppercase; margin-bottom: 12px; }
.muted { color: var(--muted); }
.centered { text-align: center; }
.align-left { text-align: left; }
.mt-24 { margin-top: 24px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 999px; border: 1px solid transparent; padding: 12px 18px; font-weight: 600; transition: 0.2s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, #876443, var(--brand)); color: #fff; box-shadow: 0 18px 30px rgba(122, 91, 58, 0.22); }
.btn-secondary { background: rgba(255, 255, 255, 0.88); border-color: var(--line); color: var(--text); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--text); }
.btn-lg { padding: 16px 22px; font-size: 15px; }
.btn-block { width: 100%; }

.alert { margin: 0 0 16px; padding: 16px 18px; border-radius: 16px; font-weight: 500; }
.alert-success { background: rgba(38, 98, 78, 0.08); color: var(--success); }
.alert-danger { background: rgba(162, 71, 71, 0.08); color: var(--danger); }

.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; }
.brand-mark { width: 36px; height: 36px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #2a2a23, #8c6a46); color: #fff; font-size: 13px; }
.brand-text { letter-spacing: -0.02em; font-size: 18px; }

.site-header { position: sticky; top: 0; z-index: 20; backdrop-filter: blur(18px); background: rgba(248, 244, 238, 0.82); border-bottom: 1px solid rgba(31, 36, 31, 0.04); }
.nav-shell { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; gap: 24px; }
.nav-links, .nav-actions { display: flex; align-items: center; gap: 18px; }
.site-footer { padding: 48px 0 64px; border-top: 1px solid rgba(31, 36, 31, 0.06); }
.footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr; gap: 32px; }
.footer-grid h4 { margin-bottom: 14px; }
.footer-grid a { display: block; margin-bottom: 10px; color: var(--muted); }

.hero-section { padding: 88px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: center; }
.hero-section h1, .section-heading h1, .section-heading h2 { margin: 0 0 16px; letter-spacing: -0.04em; line-height: 1.08; }
.hero-section h1 { font-size: clamp(40px, 6vw, 68px); }
.hero-copy { max-width: 640px; color: var(--muted); font-size: 18px; line-height: 1.7; }
.hero-actions { display: flex; gap: 14px; margin: 28px 0 24px; flex-wrap: wrap; }
.trust-row { display: flex; gap: 10px; flex-wrap: wrap; color: var(--muted); font-size: 14px; }
.trust-row span { background: rgba(255,255,255,0.72); padding: 10px 14px; border-radius: 999px; border: 1px solid var(--line); }

.hero-card, .surface-card, .auth-card, .panel-card, .receipt-sheet { background: var(--surface); border: 1px solid rgba(255,255,255,0.8); border-radius: var(--radius-xl); box-shadow: var(--shadow); }
.surface-card, .auth-card, .receipt-sheet { padding: 32px; }
.panel-card { padding: 28px; }
.surface-subtle { padding: 18px; background: rgba(255,255,255,0.65); border: 1px solid var(--line); border-radius: 18px; }
.feature-card { padding: 28px; border-radius: 24px; background: rgba(255,255,255,0.72); border: 1px solid rgba(255,255,255,0.82); box-shadow: var(--shadow); }
.feature-card p, .surface-card p, .section-heading p, .stack-item span { color: var(--muted); line-height: 1.7; }
.card-grid { display: grid; gap: 20px; }
.card-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.feature-list { padding-left: 18px; color: var(--muted); line-height: 1.8; }
.hero-stack { display: grid; gap: 14px; margin-top: 16px; }
.stack-item { padding: 18px; border-radius: 18px; background: rgba(248, 244, 238, 0.9); border: 1px solid var(--line); }
.section-heading { margin-bottom: 28px; }
.section-heading.compact { display: flex; align-items: center; justify-content: space-between; gap: 16px; }

.pricing-card { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; background: var(--surface); border-radius: 28px; padding: 30px; border: 1px solid rgba(255,255,255,0.8); box-shadow: var(--shadow); }
.price-line { display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px; }
.price-line strong { font-size: 38px; letter-spacing: -0.04em; }
.faq-list { display: grid; gap: 16px; }
.faq-item { background: var(--surface); border-radius: 20px; padding: 18px 22px; border: 1px solid rgba(255,255,255,0.8); box-shadow: var(--shadow); }
.cta-banner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 36px; background: linear-gradient(135deg, rgba(255,255,255,0.72), rgba(238,231,220,0.95)); border-radius: 28px; box-shadow: var(--shadow); }

.auth-shell { min-height: 100vh; display: grid; grid-template-columns: 1.05fr 0.95fr; }
.auth-side { padding: 64px; background: radial-gradient(circle at top left, rgba(122,91,58,0.16), transparent 45%), linear-gradient(180deg, #f0e8dc 0%, #ece3d5 100%); display: flex; flex-direction: column; justify-content: center; }
.auth-side h1 { font-size: clamp(34px, 5vw, 58px); margin: 18px 0 14px; letter-spacing: -0.04em; line-height: 1.06; }
.auth-side p { max-width: 460px; color: var(--muted); line-height: 1.8; }
.auth-main { display: flex; align-items: center; justify-content: center; padding: 40px; }
.auth-card { width: min(520px, 100%); }
.stack-form { display: grid; gap: 16px; }
.field span { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 600; }
.checkbox-line, .check-grid label { display: flex; align-items: center; gap: 10px; color: var(--muted); }
.checkbox-line input, .check-grid input { width: auto; }
.auth-links { margin-top: 18px; color: var(--muted); text-align: center; }
.error-text { color: var(--danger); display: block; margin-top: 6px; }

.dashboard-shell { min-height: 100vh; display: grid; grid-template-columns: 300px 1fr; background: linear-gradient(180deg, #f7f2e8 0%, #efe7da 100%); }
.dashboard-sidebar { padding: 28px 20px; border-right: 1px solid rgba(31, 36, 31, 0.06); background: rgba(247, 243, 235, 0.82); backdrop-filter: blur(16px); }
.dashboard-main { padding: 28px 32px 48px; }
.sidebar-brand { margin-bottom: 28px; }
.sidebar-section { font-size: 12px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--muted); margin-bottom: 14px; }
.sidebar-nav { display: grid; gap: 6px; }
.sidebar-nav a { padding: 12px 14px; border-radius: 14px; color: var(--muted); font-weight: 500; }
.sidebar-nav a.is-active, .sidebar-nav a:hover { background: rgba(255,255,255,0.86); color: var(--text); box-shadow: var(--shadow); }
.dashboard-topbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.dashboard-grid { display: grid; gap: 20px; }
.dashboard-grid.two-column { grid-template-columns: 1.1fr 0.9fr; }
.metrics-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 24px; }
.metric-card { background: rgba(255,255,255,0.88); border-radius: 24px; padding: 24px; border: 1px solid rgba(255,255,255,0.78); box-shadow: var(--shadow); }
.metric-label { color: var(--muted); font-size: 14px; margin-bottom: 12px; }
.metric-value { font-size: clamp(28px, 3vw, 38px); letter-spacing: -0.04em; font-weight: 700; }
.metric-foot { margin-top: 10px; color: var(--muted); font-size: 14px; }

.table-wrap { overflow: auto; }
.table { width: 100%; border-collapse: collapse; min-width: 720px; }
.table th, .table td { text-align: left; padding: 14px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; }
.table-actions, .inline-form, .button-row, .form-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.detail-list { display: grid; gap: 12px; }
.detail-list div { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--line); }

.badge { display: inline-flex; align-items: center; padding: 7px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge-success { background: rgba(38, 98, 78, 0.1); color: var(--success); }
.badge-warning { background: rgba(143, 106, 40, 0.12); color: var(--warning); }
.badge-danger { background: rgba(162, 71, 71, 0.12); color: var(--danger); }
.badge-neutral { background: rgba(105, 114, 106, 0.12); color: var(--muted); }

.form-grid { display: grid; gap: 16px; }
.form-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.checkout-shell { min-height: 100vh; padding: 26px 20px 60px; background: radial-gradient(circle at top center, rgba(122,91,58,0.1), transparent 32%), linear-gradient(180deg, #f8f5ee 0%, #efe8db 100%); }
.checkout-brand { width: min(1100px, 100%); margin: 0 auto 20px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.checkout-grid { width: min(1100px, 100%); margin: 0 auto; display: grid; grid-template-columns: 1fr 360px; gap: 24px; align-items: start; }
.summary-card { position: sticky; top: 24px; }
.summary-row { display: flex; justify-content: space-between; gap: 18px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.summary-stack { display: grid; gap: 0; }
.summary-note { margin-top: 16px; color: var(--muted); line-height: 1.7; }
.center-card { text-align: center; width: min(720px, 100%); margin: 24px auto; }
.download-link { display: block; margin-top: 10px; font-weight: 600; color: var(--brand-dark); }

.receipt-sheet { width: min(900px, 100%); margin: 24px auto; }
.receipt-header { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 24px; }
.receipt-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 26px; margin-bottom: 24px; }
.receipt-grid div { padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.receipt-grid strong { display: block; margin-bottom: 6px; color: var(--muted); }

.prose-card { background: rgba(255,255,255,0.88); border-radius: 28px; padding: 36px; box-shadow: var(--shadow); }
.prose { color: var(--text); line-height: 1.85; }
.prose h2, .prose h3 { margin-top: 24px; }

@media (max-width: 1080px) {
  .hero-grid, .pricing-card, .checkout-grid, .dashboard-grid.two-column, .footer-grid, .auth-shell { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dashboard-shell { grid-template-columns: 1fr; }
  .dashboard-sidebar { border-right: 0; border-bottom: 1px solid rgba(31,36,31,0.06); }
  .summary-card { position: static; }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .hero-actions, .button-row, .form-grid.two, .form-grid.four, .metrics-grid, .cta-banner { grid-template-columns: 1fr; flex-direction: column; align-items: stretch; }
  .container { width: min(100% - 24px, 1160px); }
  .section { padding: 64px 0; }
  .auth-side { padding: 36px 24px; }
  .auth-main { padding: 24px; }
  .surface-card, .auth-card, .receipt-sheet { padding: 22px; }
  .dashboard-main { padding: 20px 16px 40px; }
  .receipt-grid { grid-template-columns: 1fr; }
  .checkout-brand { flex-direction: column; align-items: flex-start; }
}