/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d0f14;
  --surface:   #141720;
  --surface2:  #1c2030;
  --border:    #2a2f45;
  --gold:      #c9a84c;
  --gold-lite: #e8c97a;
  --red:       #e05c5c;
  --blue:      #5b8dee;
  --green:     #4caf7d;
  --text:      #dce3f0;
  --muted:     #7a8499;
  --radius:    12px;
  --shadow:    0 4px 24px rgba(0,0,0,.45);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Serif KR', 'Noto Serif', Georgia, serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── Header ─── */
header {
  text-align: center;
  padding: 3rem 1rem 2rem;
  background: linear-gradient(180deg, #0a0c10 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}
.logo {
  font-size: 3rem;
  line-height: 1;
  color: var(--gold);
  animation: spin 12s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

header h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--gold-lite);
  letter-spacing: .08em;
  margin: .5rem 0 .25rem;
}
.subtitle {
  color: var(--muted);
  font-size: .9rem;
  letter-spacing: .04em;
}

/* ─── Main Layout ─── */
main {
  flex: 1;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  padding: 2rem 1rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ─── Cards ─── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.card h2 {
  font-size: 1.05rem;
  color: var(--gold);
  letter-spacing: .06em;
  margin-bottom: 1.2rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--border);
}

/* ─── Form ─── */
.form-card h2 { font-size: 1.1rem; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-bottom: 1.5rem;
}
@media (max-width: 520px) { .form-grid { grid-template-columns: 1fr; } }

.field-group label {
  display: block;
  font-size: .8rem;
  color: var(--muted);
  letter-spacing: .05em;
  margin-bottom: .4rem;
}

.inline-inputs {
  display: flex;
  gap: .5rem;
  align-items: center;
}
.input-wrap {
  display: flex;
  align-items: center;
  gap: .25rem;
}
.unit { font-size: .85rem; color: var(--muted); }

input[type="number"],
input[type="text"] {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: inherit;
  font-size: .95rem;
  padding: .5rem .7rem;
  outline: none;
  transition: border-color .2s;
}
input[type="number"] { width: 5.5rem; }
input[type="text"]   { width: 5rem; text-align: center; letter-spacing: .1em; font-size: 1rem; }
input:focus { border-color: var(--gold); }

.radio-group {
  display: flex;
  gap: 1.2rem;
  margin-top: .2rem;
}
.radio-label {
  display: flex;
  align-items: center;
  gap: .4rem;
  cursor: pointer;
  font-size: .95rem;
}
input[type="radio"] { accent-color: var(--gold); width: 16px; height: 16px; }

/* Pillars */
.pillars-section { margin-bottom: 1.5rem; }
.pillars-hint {
  font-size: .78rem;
  color: var(--muted);
  margin-bottom: 1rem;
}
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
@media (max-width: 600px) { .pillars-grid { grid-template-columns: repeat(2, 1fr); } }

.pillar-input {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .35rem;
}
.pillar-input label {
  font-size: .78rem;
  color: var(--gold);
  letter-spacing: .04em;
}
.pillar-input input {
  width: 4.5rem;
  text-align: center;
  font-size: 1.2rem;
  letter-spacing: .15em;
  padding: .6rem .4rem;
}
.pillar-desc {
  font-size: .7rem;
  color: var(--muted);
}

/* Submit Button */
.btn-analyze {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  width: 100%;
  padding: .9rem;
  background: linear-gradient(135deg, #a07830, var(--gold));
  border: none;
  border-radius: 10px;
  color: #0d0f14;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .06em;
  cursor: pointer;
  transition: opacity .2s, transform .1s;
}
.btn-analyze:hover { opacity: .88; }
.btn-analyze:active { transform: scale(.98); }
.btn-analyze:disabled { opacity: .5; cursor: not-allowed; }
.btn-icon { font-size: 1.1rem; }

/* ─── Loader ─── */
.loader-wrap {
  text-align: center;
  padding: 3rem 1rem;
}
.loader-symbol {
  font-size: 3.5rem;
  color: var(--gold);
  animation: spin 2s linear infinite;
  display: inline-block;
  margin-bottom: 1rem;
}
.loader-text {
  font-size: 1.1rem;
  color: var(--gold-lite);
  margin-bottom: .4rem;
}
.loader-sub { color: var(--muted); font-size: .85rem; }

/* ─── Error ─── */
.error-card {
  border-color: var(--red);
  background: rgba(224,92,92,.08);
}
.error-card h3 { color: var(--red); margin-bottom: .6rem; }

/* ─── Saju Table ─── */
.saju-table-wrap { overflow-x: auto; }
.saju-table {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
}
.saju-table th {
  background: var(--surface2);
  color: var(--gold);
  font-size: .8rem;
  letter-spacing: .06em;
  padding: .5rem .8rem;
  border: 1px solid var(--border);
}
.saju-table td {
  border: 1px solid var(--border);
  padding: .55rem .8rem;
  font-size: 1rem;
}
.sipsung-row td { color: var(--muted); font-size: .82rem; }
.ganjji-row td  { font-size: 1.5rem; color: var(--gold-lite); letter-spacing: .1em; font-weight: 700; }
.ilju-col        { background: rgba(201,168,76,.08); }

/* ─── Two Col ─── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
@media (max-width: 640px) { .two-col { grid-template-columns: 1fr; } }

/* ─── Gyuk / Ilgan Result ─── */
.info-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: .35rem 0;
  border-bottom: 1px solid var(--border);
  font-size: .88rem;
  gap: .5rem;
}
.info-row:last-child { border-bottom: none; }
.info-label { color: var(--muted); flex-shrink: 0; }
.info-val   { color: var(--text); text-align: right; }
.info-val.gold  { color: var(--gold-lite); font-weight: 600; }
.info-val.green { color: var(--green); }
.info-val.red   { color: var(--red); }

/* Oheng bar */
.oheng-bars { margin-top: .8rem; }
.oheng-bar-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: .4rem;
  font-size: .82rem;
}
.oheng-name { width: 1.5rem; color: var(--muted); }
.oheng-track {
  flex: 1;
  height: 6px;
  background: var(--surface2);
  border-radius: 3px;
  overflow: hidden;
}
.oheng-fill { height: 100%; border-radius: 3px; transition: width .6s ease; }
.oheng-pct { width: 2.8rem; text-align: right; color: var(--muted); }

/* ─── Daewun ─── */
.daewun-scroll { overflow-x: auto; }
.daewun-list {
  display: flex;
  gap: .8rem;
  padding-bottom: .5rem;
  min-width: max-content;
}
.daewun-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .7rem .9rem;
  text-align: center;
  min-width: 90px;
  transition: transform .15s;
  cursor: default;
}
.daewun-item:hover { transform: translateY(-3px); }
.daewun-item.current { border-color: var(--gold); background: rgba(201,168,76,.1); }
.dw-age    { font-size: .72rem; color: var(--muted); margin-bottom: .3rem; }
.dw-ganjji { font-size: 1.3rem; color: var(--gold-lite); letter-spacing: .1em; font-weight: 700; margin-bottom: .3rem; }
.dw-score  { font-size: .75rem; }
.score-pos { color: var(--green); }
.score-neg { color: var(--red); }
.score-neu { color: var(--muted); }
.dw-label  { font-size: .68rem; color: var(--muted); margin-top: .2rem; line-height: 1.3; }

/* ─── Jiji Relations ─── */
.rel-list, .sinsul-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: .5rem;
}
.rel-tag {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .25rem .6rem;
  font-size: .8rem;
  color: var(--muted);
}
.rel-tag.hap { border-color: var(--green); color: var(--green); }
.rel-tag.chung { border-color: var(--red); color: var(--red); }
.rel-tag.hyung { border-color: #e0925c; color: #e0925c; }
.sinsul-tag {
  background: rgba(91,141,238,.12);
  border: 1px solid var(--blue);
  border-radius: 6px;
  padding: .25rem .6rem;
  font-size: .8rem;
  color: var(--blue);
}

/* ─── AI Card ─── */
.ai-card { border-color: #2a3a5a; }
.ai-badge {
  background: var(--blue);
  color: #fff;
  font-size: .7rem;
  padding: .1rem .4rem;
  border-radius: 4px;
  letter-spacing: .04em;
  margin-right: .4rem;
  vertical-align: middle;
}
.ai-content {
  line-height: 1.8;
  font-size: .92rem;
  white-space: pre-wrap;
  color: var(--text);
}
.ai-content h3 {
  color: var(--gold);
  font-size: 1rem;
  margin: 1.2rem 0 .4rem;
}

/* ─── Action Row ─── */
.action-row { text-align: center; }
.btn-reset {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  font-family: inherit;
  font-size: .9rem;
  padding: .55rem 1.4rem;
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.btn-reset:hover { border-color: var(--gold); color: var(--gold); }

/* ─── Footer ─── */
footer {
  text-align: center;
  padding: 1.5rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .78rem;
  letter-spacing: .03em;
}

/* ─── Utilities ─── */
.hidden { display: none !important; }
.section-label {
  font-size: .75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin: .8rem 0 .3rem;
}