/* AAS Seminar 데모 공통 CSS */
:root {
  --bg-main: #0A0E27;
  --bg-navy: #1A3560;
  --bg-card: #0F2244;
  --bg-input: rgba(10,14,39,0.8);
  --gold: #E8B84B;
  --gold-light: #F0C456;
  --light: #BFD7FF;
  --text: #ffffff;
  --muted: rgba(255,255,255,0.6);
  --border: rgba(240,196,86,0.25);
  --cyan: #00D9FF;
  --blue: #0066FF;
  --success: #2ECC71;
  --warn: #FFB800;
  --danger: #FF6B8B;
  --font-body: 'Inter','Pretendard','Malgun Gothic',sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  background: var(--bg-main); color: var(--text); font-family: var(--font-body);
  font-size: 15px; line-height: 1.6; padding-bottom: 40px;
}

.d-header {
  background: rgba(10,14,39,0.95); border-bottom: 1px solid rgba(240,196,86,0.3);
  padding: 14px 24px; display: flex; align-items: center; gap: 16px;
  position: sticky; top: 0; z-index: 10; backdrop-filter: blur(10px);
}
.d-brand { display:flex; align-items:center; gap:10px; text-decoration:none; color: var(--text); }
.d-brand-i {
  width:34px; height:34px; background: linear-gradient(135deg,#f0c456,#ffd166);
  border-radius:8px; display:flex; align-items:center; justify-content:center;
  color:#1A3560; font-weight:900; font-size:13px; font-family: var(--font-mono);
}
.d-brand-t { font-weight:800; font-size:15px; }
.d-brand-t .s { font-size: 11px; color: var(--gold); font-weight: 500; }
.d-nav { flex:1; display: flex; gap: 16px; margin-left: 20px; flex-wrap: wrap;}
.d-nav a { color: var(--muted); text-decoration:none; font-size: 13px; font-weight: 500;}
.d-nav a:hover, .d-nav a.active { color: var(--gold); }
.d-back {
  padding: 6px 14px; background: rgba(240,196,86,0.1);
  border:1px solid rgba(240,196,86,0.4); border-radius: 6px;
  color: var(--gold); text-decoration:none; font-size:12px; font-weight:600;
}
.d-back:hover { background: rgba(240,196,86,0.2); }

.d-container { max-width: 1400px; margin: 0 auto; padding: 32px 24px; }
.d-hero {
  padding: 30px 0 20px; border-bottom: 1px solid var(--border); margin-bottom: 30px;
}
.d-badge {
  display: inline-block; padding: 4px 14px; background: rgba(240,196,86,0.15);
  border: 1px solid var(--gold); border-radius: 999px; color: var(--gold);
  font-size: 11px; font-weight: 700; font-family: var(--font-mono); letter-spacing: 1px;
  margin-bottom: 12px;
}
.d-hero h1 { font-size: 32px; font-weight: 800; color: var(--text); margin-bottom: 8px; }
.d-hero .subt { font-size: 15px; color: var(--light); max-width: 800px; }
.d-hero .relate { margin-top: 16px; font-size: 12px; color: var(--muted); font-family: var(--font-mono); }
.d-hero .relate a { color: var(--cyan); text-decoration: none; margin-right: 10px; }

.d-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px; margin-bottom: 20px;
}
.d-card h2 { color: var(--gold); font-size: 20px; margin-bottom: 14px; font-weight: 700; }
.d-card h3 { color: var(--gold); font-size: 16px; margin: 14px 0 10px; font-weight: 700; }
.d-card p  { color: var(--text); line-height: 1.7; font-size: 14px; }
.d-card p.muted { color: var(--muted); font-size: 13px; }

.d-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 900px) { .d-grid-2 { grid-template-columns: 1fr; } }

.d-label { display: block; font-size: 12px; color: var(--light); font-weight: 600; margin-bottom: 6px; text-transform: uppercase; letter-spacing: 1px; }
.d-input, .d-select, .d-textarea {
  width: 100%; padding: 10px 14px; background: var(--bg-input);
  border: 1px solid rgba(255,255,255,0.15); border-radius: 6px;
  color: var(--text); font-family: var(--font-mono); font-size: 13px;
  outline: none; transition: border-color 0.15s;
}
.d-input:focus, .d-select:focus, .d-textarea:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(240,196,86,0.15); }
.d-textarea { resize: vertical; min-height: 120px; }
.d-btn {
  padding: 10px 22px; border-radius: 6px; border: none; cursor: pointer;
  font-family: var(--font-body); font-size: 13px; font-weight: 700;
  transition: transform 0.1s, box-shadow 0.15s; display: inline-flex; align-items: center; gap: 6px;
}
.d-btn-primary { background: linear-gradient(135deg, var(--gold), #ffd166); color: #1A3560; }
.d-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(240,196,86,0.4); }
.d-btn-secondary { background: rgba(0,217,255,0.15); color: var(--cyan); border: 1px solid var(--cyan); }
.d-btn-secondary:hover { background: rgba(0,217,255,0.3); }
.d-btn-ghost { background: transparent; color: var(--muted); border: 1px solid rgba(255,255,255,0.2); }
.d-btn-ghost:hover { color: var(--text); border-color: var(--gold); }

.d-code {
  padding: 12px 14px; background: #060920; border: 1px solid rgba(0,217,255,0.25);
  border-radius: 6px; font-family: var(--font-mono); font-size: 12px;
  color: var(--cyan); white-space: pre-wrap; word-break: break-all; overflow-x: auto;
}
.d-code.gold { color: var(--gold); border-color: rgba(240,196,86,0.4); }
.d-code.success { color: var(--success); border-color: rgba(46,204,113,0.4); }

.d-steps { display: flex; align-items: stretch; gap: 8px; margin: 20px 0; overflow-x: auto; }
.d-step {
  flex: 1; min-width: 140px; padding: 14px 12px; background: var(--bg-navy);
  border: 1px solid var(--border); border-radius: 8px; text-align: center;
}
.d-step.active { border-color: var(--gold); background: rgba(240,196,86,0.1); }
.d-step .n { color: var(--gold); font-family: var(--font-mono); font-size: 12px; font-weight: 700; }
.d-step .t { color: var(--text); font-size: 13px; font-weight: 600; margin-top: 4px; }

.d-table { width: 100%; border-collapse: collapse; }
.d-table th { background: rgba(10,37,74,0.9); color: var(--gold); font-weight: 700; padding: 10px 12px; text-align: left; font-size: 12px; border-bottom: 2px solid var(--gold); }
.d-table td { padding: 10px 12px; border-bottom: 1px solid rgba(255,255,255,0.06); font-size: 13px; color: var(--text); }
.d-table tbody tr:hover { background: rgba(240,196,86,0.05); }

.d-chip { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 11px; font-weight: 600; margin-right: 4px; }
.d-chip.good { background: rgba(46,204,113,0.15); color: var(--success); }
.d-chip.warn { background: rgba(255,184,0,0.15); color: var(--warn); }
.d-chip.bad  { background: rgba(255,107,139,0.15); color: var(--danger); }
.d-chip.info { background: rgba(0,217,255,0.15); color: var(--cyan); }

.d-nav-row { display: flex; justify-content: space-between; gap: 12px; margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--border); }
.d-nav-link {
  padding: 14px 20px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; text-decoration: none; color: var(--text); flex: 1; transition: border-color 0.15s;
}
.d-nav-link:hover { border-color: var(--gold); }
.d-nav-link .lbl { color: var(--muted); font-size: 11px; font-family: var(--font-mono); text-transform: uppercase; }
.d-nav-link .ttl { font-size: 14px; color: var(--gold); font-weight: 600; margin-top: 3px; }
.d-nav-link.next { text-align: right; }