:root {
  --bg: #0a0a0f;
  --bg-card: #14141c;
  --bg-deep: #050508;
  --text: #f5f5f7;
  --text-sub: #a0a0b0;
  --accent: #d4a574;
  --accent-glow: #f4d4a4;
  --border: #2a2a35;
  --max-w: 1000px;
  --narrow-w: 720px;
  --radius: 12px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Inter', 'Pretendard', 'Hiragino Sans', 'PingFang SC', sans-serif;
  --font-serif: 'Noto Serif', 'Noto Serif KR', 'Noto Serif JP', 'Noto Serif SC', Georgia, serif;
  --font-han: 'Noto Serif KR', 'Noto Serif JP', 'Noto Serif SC', serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 17px;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: var(--narrow-w); }

/* site header — language switcher pinned to top */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 10px 24px;
  background: rgba(10, 10, 15, 0.82);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
}
.lang-switch .lang-icon { font-size: 16px; line-height: 1; }
.lang-switch select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 7px 30px 7px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23a0a0b0' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}
.lang-switch select:focus { outline: none; border-color: var(--accent); }
[dir="rtl"] .site-header { justify-content: flex-start; }
[dir="rtl"] .lang-switch select { padding: 7px 12px 7px 30px; background-position: left 10px center; }

section { padding: 64px 0; }

/* hero */
.hero {
  padding: 96px 0 48px;
  text-align: center;
  background:
    radial-gradient(ellipse at top, rgba(212, 165, 116, 0.08) 0%, transparent 60%),
    var(--bg);
}
.kicker {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--accent);
  text-transform: uppercase;
  margin: 0 0 20px;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.2;
  font-weight: 700;
  margin: 0 0 24px;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, var(--text) 0%, var(--accent-glow) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead { font-size: clamp(16px, 2.4vw, 19px); max-width: 640px; margin: 0 auto 12px; }
.lead-sub { color: var(--text-sub); max-width: 640px; margin: 0 auto; }
.lead-sub strong { color: var(--accent); }

/* form */
.form-section {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.form-section h2 {
  font-family: var(--font-serif);
  text-align: center;
  font-size: clamp(22px, 3.5vw, 30px);
  margin: 0 0 32px;
}
#saju-form .row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
#saju-form .row.row-single { grid-template-columns: 1fr; }
#saju-form input::placeholder { color: var(--text-sub); opacity: 0.6; }
#saju-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
#saju-form span {
  font-size: 13px;
  color: var(--text-sub);
  font-weight: 500;
  letter-spacing: 0.02em;
}
#saju-form input,
#saju-form select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 15px;
  font-family: inherit;
}
#saju-form input:focus,
#saju-form select:focus {
  outline: none;
  border-color: var(--accent);
}
.hint {
  font-size: 13px;
  color: var(--text-sub);
  margin: 12px 0 20px;
  text-align: center;
}
.form-error {
  font-size: 14px;
  color: #f87171;
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.35);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin: 0 0 16px;
  text-align: center;
}
#saju-form input.input-invalid,
#saju-form input.input-invalid:focus {
  border-color: #f87171;
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.18);
}
#submit-btn {
  width: 100%;
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 16px 24px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
}
#submit-btn:hover { background: var(--accent-glow); }

/* result section */
.result-section {
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border);
}
.result-section h2,
.result-section h3 {
  font-family: var(--font-serif);
  text-align: center;
  font-weight: 700;
}
.result-section h2 { font-size: clamp(22px, 3.5vw, 30px); margin: 0 0 24px; }
.result-section h3 {
  font-size: 18px;
  margin: 40px 0 16px;
  color: var(--accent);
  letter-spacing: 0.02em;
}

/* pillars grid (result) */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 0 0 8px;
}
.pillar-cell {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 8px;
  text-align: center;
}
.pillar-cell.day-pillar {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(212, 165, 116, 0.08), var(--bg-card));
}
.pillar-label {
  font-size: 12px;
  color: var(--text-sub);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}
.pillar-han { font-family: var(--font-han); color: var(--accent); }
.pillar-chars {
  font-family: var(--font-han);
  font-size: clamp(32px, 5.5vw, 44px);
  font-weight: 700;
  line-height: 1.1;
  margin: 4px 0;
}
.pillar-meta {
  font-size: 11px;
  color: var(--text-sub);
  margin-top: 8px;
  line-height: 1.4;
}

/* elements bars */
.elements-bars {
  display: grid;
  gap: 10px;
  margin: 0 0 8px;
}
.element-row {
  display: grid;
  grid-template-columns: 80px 1fr 50px;
  gap: 12px;
  align-items: center;
}
.element-label {
  font-weight: 600;
  font-size: 14px;
}
.element-bar {
  height: 14px;
  background: var(--bg-card);
  border-radius: 7px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.element-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.element-pct {
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  color: var(--text-sub);
  text-align: right;
}

/* day master box */
.day-master-box {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  margin-bottom: 8px;
}
.dm-char {
  font-family: var(--font-han);
  font-size: 64px;
  font-weight: 800;
  line-height: 1;
}
.dm-meta {
  font-size: 14px;
  color: var(--text-sub);
  margin-top: 12px;
}

/* reading badge */
.reading-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
.reading-badge.badge-llm {
  background: rgba(212, 165, 116, 0.15);
  color: var(--accent);
  border: 1px solid var(--accent);
}
.reading-badge.badge-rule {
  background: var(--bg-card);
  color: var(--text-sub);
  border: 1px solid var(--border);
}

/* reading text */
.reading-text {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  white-space: pre-wrap;
  font-size: 16px;
  line-height: 1.85;
}

/* actions */
.actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin: 32px 0 16px;
  flex-wrap: wrap;
}
.actions button {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
}
.actions button:hover { background: var(--accent-glow); }
.actions button.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.actions button.ghost:hover { border-color: var(--accent); color: var(--accent); }

.card-preview {
  text-align: center;
  margin-top: 8px;
}
.card-preview img {
  max-width: 100%;
  width: 540px;
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
}

/* depth (ADR-023): 지장간·12운성·공망·대운 */
.pillar-hidden, .pillar-stage {
  font-size: 11px;
  color: var(--text-sub);
  margin-top: 6px;
  line-height: 1.3;
}
.pillar-hidden .ph-label, .pillar-stage .ps-label {
  color: var(--accent);
  font-weight: 600;
  margin-right: 4px;
  letter-spacing: 0.02em;
}

.void-box {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 12px 18px;
  margin-top: 12px;
  font-size: 14px;
}
.void-label {
  color: var(--accent);
  font-weight: 600;
  font-family: var(--font-serif);
}
.void-chars {
  font-family: var(--font-han);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.05em;
}
.void-hint {
  color: var(--text-sub);
  font-size: 13px;
  flex: 1 1 200px;
}

.major-luck-section {
  margin-top: 40px;
}
.major-luck-title {
  font-family: var(--font-serif);
  text-align: center;
  font-size: 18px;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin: 0 0 8px;
}
.major-luck-start {
  text-align: center;
  font-size: 13px;
  color: var(--text-sub);
  margin: 0 0 16px;
}
.major-luck-hint {
  text-align: center;
  font-size: 13px;
  color: var(--text-sub);
  font-style: italic;
  margin: 16px 0 0;
}
.major-luck-strip {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
}
.luck-cell {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 6px;
  text-align: center;
  transition: border-color 0.15s, transform 0.15s;
}
.luck-cell:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.luck-age {
  font-size: 11px;
  color: var(--text-sub);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.luck-year {
  font-size: 10px;
  color: var(--text-sub);
  margin-bottom: 6px;
}
.luck-chars {
  font-family: var(--font-han);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  margin: 4px 0 6px;
}
.luck-god {
  font-family: var(--font-han);
  font-size: 10px;
  color: var(--accent);
}

@media (max-width: 720px) {
  .major-luck-strip { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 400px) {
  .major-luck-strip { grid-template-columns: repeat(2, 1fr); }
}

/* feedback widget (ADR-020) */
.feedback-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 32px 0 16px;
  text-align: center;
}
.fb-prompt {
  font-size: 15px;
  color: var(--text);
  margin-bottom: 12px;
  font-weight: 500;
}
.fb-stars {
  display: inline-flex;
  gap: 6px;
  margin-bottom: 12px;
}
.fb-star {
  background: transparent;
  border: none;
  color: var(--border);
  font-size: 28px;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
  transition: color 0.15s, transform 0.15s;
}
.fb-star:hover {
  transform: scale(1.15);
  color: var(--accent);
}
.fb-star.selected {
  color: var(--accent);
}
.fb-text {
  display: block;
  width: 100%;
  max-width: 420px;
  margin: 0 auto 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
  resize: vertical;
  line-height: 1.5;
}
.fb-text:focus {
  outline: none;
  border-color: var(--accent);
}
.fb-submit {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 10px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s;
}
.fb-submit:hover:not(:disabled) {
  background: var(--accent-glow);
}
.fb-submit:disabled {
  opacity: 0.5;
  cursor: default;
}
.fb-thanks {
  color: var(--accent);
  font-size: 15px;
  margin: 8px 0;
  font-weight: 500;
}

.daily-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 40px;
  padding: 22px 24px;
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}
.daily-cta:hover { background: var(--accent-glow); border-color: var(--accent-glow); }
.daily-cta:hover .daily-cta-title,
.daily-cta:hover .daily-cta-desc { color: var(--bg); }
.daily-cta:hover .daily-cta-btn { border-color: var(--bg); color: var(--bg); }
.daily-cta-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-glow);
  margin-bottom: 6px;
}
.daily-cta-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.55;
  margin: 0;
}
.daily-cta-btn {
  flex-shrink: 0;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}
@media (max-width: 600px) {
  .daily-cta { flex-direction: column; align-items: flex-start; gap: 14px; }
}

.upsell {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}
.upsell-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.upsell-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 24px 22px;
}
.upsell-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-glow);
  margin-bottom: 10px;
}
.upsell-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
  margin: 0 0 16px;
}
.upsell-cta {
  display: inline-block;
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.15s;
}
.upsell-cta:hover { background: var(--accent); color: var(--bg); }

@media (max-width: 600px) {
  .upsell-row { grid-template-columns: 1fr; }
}

.upgrade-note {
  text-align: center;
  font-size: 14px;
  color: var(--text-sub);
  margin: 24px 0 0;
}
.upgrade-note strong { color: var(--accent); }
.upgrade-note a { color: var(--accent); }

/* pillars explainer */
.pillars-explainer h2 {
  font-family: var(--font-serif);
  text-align: center;
  font-size: clamp(22px, 3.5vw, 30px);
  margin: 0 0 36px;
}
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}
.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
}
.pillar-card .pillar-name {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 10px;
}
.pillar-card p { color: var(--text-sub); margin: 0; font-size: 14px; }

/* footer */
footer {
  padding: 36px 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-sub);
  border-top: 1px solid var(--border);
}
footer p { margin: 4px 0; }
footer a { color: var(--accent); }
.footer-nav {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 0 0 12px;
}
.footer-nav .current { color: var(--text); font-weight: 600; }

/* mobile */
@media (max-width: 600px) {
  section { padding: 48px 0; }
  .hero { padding: 64px 0 32px; }
  #saju-form .row { grid-template-columns: 1fr; }
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
  .reading-text { padding: 20px 18px; font-size: 15px; }
  .element-row { grid-template-columns: 64px 1fr 44px; }
  .dm-char { font-size: 56px; }
}