:root {
  --bg: #f4f8fb;
  --panel: rgba(255,255,255,0.88);
  --text: #16324a;
  --muted: #69839a;
  --line: #dbe7f0;
  --primary: #38a3ff;
  --primary-deep: #2269d3;
  --mint: #51d0b1;
  --accent: #ff9b5a;
  --danger: #ef5f6c;
  --shadow: 0 18px 40px rgba(28, 77, 128, 0.10);
  --radius: 24px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Pretendard', 'Apple SD Gothic Neo', sans-serif; background: linear-gradient(180deg, #f7fbff 0%, #eef6fb 100%); color: var(--text); }
button, input, select, textarea { font: inherit; }
.shell { max-width: 1440px; margin: 0 auto; padding: 24px; }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(100%, 420px); background: var(--panel); backdrop-filter: blur(14px); border: 1px solid rgba(255,255,255,0.7); border-radius: 30px; box-shadow: var(--shadow); padding: 32px; }
.hero-badge, .section-badge { display:inline-flex; align-items:center; gap:8px; background:#e9f5ff; color:var(--primary-deep); padding:8px 12px; border-radius:999px; font-size:12px; font-weight:700; }
.login-card h1 { margin:16px 0 8px; font-size: 32px; }
.login-card p { margin:0 0 24px; color: var(--muted); line-height: 1.6; }
.field { display:flex; flex-direction:column; gap:8px; margin-bottom:16px; }
.field label { font-weight:700; font-size:14px; }
.field input, .field select, .field textarea { width:100%; border:1px solid var(--line); border-radius:18px; padding:14px 16px; background:#fff; }
.field textarea { min-height: 100px; resize: vertical; }
.row { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:14px; }
.checkbox { display:flex; align-items:center; gap:10px; margin: 10px 0 18px; color: var(--muted); }
.btn { border:0; border-radius:18px; padding:14px 18px; font-weight:800; cursor:pointer; transition:.2s ease; }
.btn-primary { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%); color:white; box-shadow: 0 12px 24px rgba(56,163,255,.25); }
.btn-secondary { background:#edf6ff; color: var(--primary-deep); }
.btn-ghost { background: transparent; color: var(--muted); }
.topbar { display:flex; justify-content:space-between; gap:16px; align-items:flex-start; margin-bottom: 22px; }
.topbar h1 { margin: 12px 0 8px; font-size: 40px; }
.topbar p { margin:0; color: var(--muted); }
.top-actions { display:flex; gap:10px; align-items:center; flex-wrap: wrap; }
.card-grid { display:grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap:16px; margin-bottom: 18px; }
.stat-card, .panel { background: var(--panel); border:1px solid rgba(255,255,255,0.9); border-radius: var(--radius); box-shadow: var(--shadow); }
.stat-card { padding: 20px; }
.stat-card h3 { margin:0; color: var(--muted); font-size: 14px; }
.stat-card .value { margin-top: 12px; font-size: 32px; font-weight: 800; }
.stat-card .sub { margin-top: 8px; color: var(--muted); font-size: 14px; }
.layout { display:grid; grid-template-columns: 1.35fr .9fr; gap:18px; }
.panel { padding: 20px; }
.panel h2 { margin: 0 0 6px; font-size: 22px; }
.panel p.desc { margin:0 0 18px; color: var(--muted); }
.chart-grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:18px; }
.chart-wrap { height: 280px; }
.chart-wrap.tall { height: 320px; }
.pb-grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:14px; }
.pb-card { padding:18px; border-radius:22px; background: linear-gradient(180deg, #ffffff 0%, #f3f9ff 100%); border:1px solid #e4eff8; }
.pb-card h3 { margin:0 0 8px; }
.pb-time { font-size:30px; font-weight:800; margin-bottom: 10px; }
.pb-meta { color: var(--muted); font-size:14px; line-height: 1.7; }
.list { display:flex; flex-direction:column; gap:12px; }
.list-item { display:flex; justify-content:space-between; gap:14px; padding:14px 16px; background:#fff; border:1px solid #ebf1f6; border-radius:18px; }
.list-item strong { display:block; margin-bottom:6px; }
.list-meta { color: var(--muted); font-size:13px; }
.form-actions { display:flex; justify-content:flex-end; gap:10px; margin-top: 8px; }
.pill { display:inline-flex; align-items:center; gap:6px; border-radius:999px; padding:6px 10px; background:#eef7ff; color: var(--primary-deep); font-weight:700; font-size:12px; }
.notice { margin-top:12px; color: var(--danger); font-size:14px; }
.success { color: #1d8f6b; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(15, 31, 48, 0.36); backdrop-filter: blur(6px); display: none; align-items: center; justify-content: center; padding: 20px; z-index: 1000; }
.modal-backdrop.open { display: flex; }
.modal-card { width: min(100%, 860px); max-height: 90vh; overflow: auto; background: #fff; border-radius: 28px; box-shadow: 0 24px 60px rgba(12, 46, 79, 0.22); padding: 22px; }
.modal-header { display:flex; justify-content:space-between; align-items:center; gap:16px; margin-bottom: 12px; }
.modal-header h2 { margin:0; }
.icon-btn { width:44px; height:44px; border:0; border-radius:14px; background:#eef6ff; color:var(--primary-deep); font-size:20px; cursor:pointer; }
@media (max-width: 1200px) { .card-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } .layout { grid-template-columns: 1fr; } }
@media (max-width: 900px) { .chart-grid, .pb-grid, .row { grid-template-columns: 1fr; } .topbar { flex-direction: column; } }
@media (max-width: 640px) { .shell { padding: 16px; } .card-grid { grid-template-columns: 1fr; } .topbar h1 { font-size: 30px; } .stat-card .value { font-size: 26px; } .modal-card { padding: 18px; border-radius: 22px; } }