:root {
  --bg: #0b1220;
  --panel: #0f172a;
  --panel-2: #111c34;
  --border: #1e2c4a;
  --text: #e8edf6;
  --text-dim: #7f8db3;
  --text-dimmer: #57628a;
  --green: #22c55e;
  --amber: #f5a623;
  --red: #ef4444;
  --blue: #3b82f6;
  --gold: #c9a24b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.hidden { display: none !important; }

/* ---------- Login ---------- */
#login-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 20% 20%, #14213f 0%, #0b1220 60%);
}

.login-card {
  width: 420px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.brand-badge {
  width: 42px; height: 42px; border-radius: 10px;
  background: var(--gold); color: #1a1200;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 12px; letter-spacing: 0.5px;
}
.brand-badge.small { width: 34px; height: 34px; font-size: 11px; }
.brand-title { font-size: 18px; font-weight: 700; }
.brand-sub { font-size: 12px; color: var(--text-dim); }

.business-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; margin-bottom: 18px;
}
.business-bar-label { font-size: 10px; color: var(--text-dimmer); letter-spacing: 1px; flex-shrink: 0; }
.business-select { flex: 1; background: transparent; border: none; color: var(--gold); font-weight: 700; font-size: 13px; text-align: right; }
.business-select:focus { outline: none; }

.provision-box {
  margin-top: 14px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 12px;
}
.provision-title { font-size: 10px; color: var(--text-dimmer); letter-spacing: 0.5px; margin-bottom: 8px; }
.provision-list { display: flex; flex-direction: column; gap: 6px; }
.provision-item { display: flex; align-items: center; justify-content: space-between; font-size: 12px; }
.provision-code { font-weight: 800; font-size: 15px; letter-spacing: 2px; color: var(--gold); font-family: "SFMono-Regular", Consolas, monospace; }
.provision-meta { color: var(--text-dim); font-size: 10px; text-align: right; }
.provision-empty { font-size: 12px; color: var(--text-dimmer); }

.login-step h2 { font-size: 14px; color: var(--text-dim); margin: 0 0 14px; font-weight: 600; }
.login-step label { display: block; font-size: 12px; color: var(--text-dim); margin: 12px 0 6px; }
.login-step input, .login-step select {
  width: 100%; padding: 10px 12px; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 14px;
}
.login-step input:focus, .login-step select:focus { outline: none; border-color: var(--blue); }

.btn-primary {
  width: 100%; margin-top: 20px; padding: 11px; border: none; border-radius: 8px;
  background: var(--gold); color: #1a1200; font-weight: 700; font-size: 14px; cursor: pointer;
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:disabled { opacity: 0.5; cursor: default; }

.btn-secondary {
  width: 100%; margin-top: 10px; padding: 10px; border: 1px solid var(--border); border-radius: 8px;
  background: transparent; color: var(--text-dim); font-size: 13px; cursor: pointer;
}

.error-text { color: var(--red); font-size: 12px; margin-top: 10px; min-height: 14px; }

/* ---------- Dashboard ---------- */
#dashboard-view { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.topbar-left { display: flex; align-items: center; gap: 12px; }
.topbar-title { font-size: 16px; font-weight: 700; }
.topbar-sub { font-size: 12px; color: var(--text-dim); }
.topbar-sub-row { display: flex; align-items: center; gap: 8px; margin-top: 2px; }
.topbar-sub-label { font-size: 12px; color: var(--text-dim); }
.workspace-select {
  background: transparent; border: none; border-bottom: 1px dashed var(--text-dimmer);
  color: var(--gold); font-weight: 700; font-size: 12px; cursor: pointer; padding: 0 2px;
}
.workspace-select:focus { outline: none; border-color: var(--gold); }
.btn-mini {
  font-size: 10px; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text-dim); cursor: pointer;
}
.btn-mini:hover { border-color: var(--gold); color: var(--gold); }
.btn-mini:disabled { opacity: 0.5; cursor: default; }
.gen-code-result {
  font-size: 11px; font-weight: 700; letter-spacing: 1.5px; color: var(--gold);
  background: rgba(201,162,75,0.12); border: 1px solid var(--border); border-radius: 6px; padding: 3px 8px;
  font-family: "SFMono-Regular", Consolas, monospace;
}
.topbar-right { display: flex; align-items: center; gap: 22px; }
.poll-info { text-align: right; }
.poll-label { font-size: 10px; color: var(--text-dimmer); text-transform: uppercase; letter-spacing: 0.5px; }
.poll-value { font-size: 13px; font-weight: 600; }

.btn-icon {
  width: 34px; height: 34px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text); font-size: 15px; cursor: pointer;
}
.btn-icon:hover { border-color: var(--blue); }
.btn-icon.spin { animation: spin 0.8s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.summary-bar {
  display: flex; align-items: center; gap: 24px; padding: 16px 22px;
  background: var(--panel); border-bottom: 1px solid var(--border);
}
.summary-pct { font-size: 34px; font-weight: 800; min-width: 90px; }
.summary-text { flex: 1; color: var(--text-dim); font-size: 13px; }
.summary-counts { display: flex; gap: 22px; }
.cnt { text-align: center; }
.cnt-num { display: block; font-size: 20px; font-weight: 800; }
.cnt-label { display: block; font-size: 9px; color: var(--text-dimmer); letter-spacing: 0.5px; }
.cnt.online .cnt-num { color: var(--green); }
.cnt.intermittent .cnt-num { color: var(--amber); }
.cnt.offline .cnt-num { color: var(--red); }

.error-banner {
  padding: 10px 22px; background: #3a1414; color: #fca5a5; font-size: 13px; border-bottom: 1px solid #5c1f1f;
}

.main-layout { flex: 1; display: flex; overflow: hidden; }

.zones-panel {
  width: 250px; flex-shrink: 0; background: var(--bg); border-right: 1px solid var(--border);
  padding: 16px; overflow-y: auto;
}
.zones-title { font-size: 11px; color: var(--text-dimmer); letter-spacing: 1px; margin-bottom: 12px; }

.zone-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px; margin-bottom: 12px; cursor: pointer; transition: border-color .15s;
}
.zone-card:hover { border-color: var(--blue); }
.zone-card.active { border-color: var(--gold); }
.zone-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 4px; }
.zone-name { font-size: 13px; font-weight: 700; }
.zone-count { font-size: 11px; color: var(--text-dim); }
.zone-pct { font-size: 22px; font-weight: 800; margin: 2px 0 8px; }
.zone-bar { height: 5px; border-radius: 3px; background: #1a2540; overflow: hidden; margin-bottom: 8px; display: flex; }
.zone-bar > span { height: 100%; }
.zone-bar .b-online { background: var(--green); }
.zone-bar .b-intermittent { background: var(--amber); }
.zone-bar .b-offline { background: var(--red); }
.zone-legend { font-size: 10px; color: var(--text-dim); display: flex; gap: 10px; }
.zone-legend .dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; margin-right: 3px; }
.dot.online { background: var(--green); }
.dot.intermittent { background: var(--amber); }
.dot.offline { background: var(--red); }

.devices-panel { flex: 1; display: flex; flex-direction: column; overflow: hidden; padding: 16px 20px; }
.tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.tab {
  padding: 7px 16px; border-radius: 999px; border: 1px solid var(--border); background: var(--panel);
  color: var(--text-dim); font-size: 12px; cursor: pointer;
}
.tab.active { border-color: var(--gold); color: var(--gold); background: rgba(201,162,75,0.1); }

.bulk-bar {
  display: flex; align-items: center; gap: 10px; padding: 8px 14px; margin-bottom: 10px;
  background: rgba(201,162,75,0.08); border: 1px solid var(--gold); border-radius: 8px;
  font-size: 12px; color: var(--gold);
}
.btn-danger-mini {
  font-size: 11px; padding: 5px 12px; border-radius: 999px; border: 1px solid var(--red);
  background: rgba(239,68,68,0.12); color: var(--red); cursor: pointer; font-weight: 700;
}
.btn-danger-mini:hover { background: rgba(239,68,68,0.22); }
.btn-secondary-mini {
  font-size: 11px; padding: 5px 12px; border-radius: 999px; border: 1px solid var(--border);
  background: transparent; color: var(--text-dim); cursor: pointer;
}
.btn-secondary-mini:hover { border-color: var(--text-dim); }

.device-list { flex: 1; overflow-y: auto; border: 1px solid var(--border); border-radius: 10px; background: var(--panel); }
.device-row {
  display: flex; align-items: center; justify-content: space-between; padding: 10px 16px;
  border-bottom: 1px solid var(--border); cursor: pointer;
}
.device-row:last-child { border-bottom: none; }
.device-row:hover { background: var(--panel-2); }
.device-row.selected { background: rgba(201,162,75,0.08); }
.device-check { width: 15px; height: 15px; flex-shrink: 0; margin-right: 12px; cursor: pointer; accent-color: var(--gold); }
.device-thumb-wrap { flex-shrink: 0; margin-right: 12px; text-align: center; }
.device-row-thumb { width: 56px; height: 32px; object-fit: cover; border-radius: 5px; border: 1px solid var(--border); background: #060a14; display: block; }
.device-row-thumb.placeholder { display: flex; align-items: center; justify-content: center; font-size: 8px; color: var(--text-dimmer); }
.device-thumb-time { font-size: 9px; color: var(--text-dimmer); margin-top: 2px; }
.device-left { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 0; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.status-dot.online { background: var(--green); }
.status-dot.intermittent { background: var(--amber); }
.status-dot.offline { background: var(--red); }
.device-name { font-size: 13px; font-weight: 700; }
.device-sub { font-size: 11px; color: var(--text-dim); margin-top: 2px; }
.device-right { display: flex; align-items: center; gap: 8px; }
.badge { font-size: 10px; font-weight: 700; padding: 4px 8px; border-radius: 5px; letter-spacing: 0.3px; }
.badge.online { background: rgba(34,197,94,0.15); color: var(--green); }
.badge.intermittent { background: rgba(245,166,35,0.15); color: var(--amber); }
.badge.offline { background: rgba(239,68,68,0.15); color: var(--red); }
.badge.issue { background: rgba(245,166,35,0.15); color: var(--amber); }
.empty-state { padding: 40px; text-align: center; color: var(--text-dimmer); font-size: 13px; }

/* ---------- Detail panel ---------- */
.detail-panel {
  width: 340px; flex-shrink: 0; background: var(--panel); border-left: 1px solid var(--border);
  overflow-y: auto; padding: 18px;
}
.detail-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
#detail-name { font-size: 16px; font-weight: 700; }
.detail-status-badge { display: inline-block; margin: 6px 0 16px; }

.detail-thumb-wrap { margin-bottom: 16px; cursor: pointer; position: relative; }
.detail-thumb-wrap:hover .detail-thumb,
.detail-thumb-wrap:hover .detail-thumb-placeholder { border-color: var(--gold); }
.detail-thumb-wrap::after {
  content: '▶ 히스토리 보기'; position: absolute; right: 8px; bottom: 8px;
  font-size: 10px; color: var(--text); background: rgba(0,0,0,0.55); padding: 3px 8px; border-radius: 999px;
  opacity: 0; transition: opacity .15s; pointer-events: none;
}
.detail-thumb-wrap:hover::after { opacity: 1; }
.detail-thumb {
  width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: 8px; background: #060a14;
  border: 1px solid var(--border);
}
.detail-thumb-placeholder {
  width: 100%; aspect-ratio: 16/9; border-radius: 8px; background: #060a14;
  border: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
  color: var(--text-dimmer); font-size: 11px; text-align: center; padding: 8px;
}

.detail-section { margin-bottom: 18px; }
.detail-section-title { font-size: 10px; color: var(--text-dimmer); letter-spacing: 1px; margin-bottom: 8px; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.detail-field { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 9px 11px; }
.detail-field.clickable { cursor: pointer; transition: border-color .15s; }
.detail-field.clickable:hover { border-color: var(--gold); }
.detail-field-label { font-size: 10px; color: var(--text-dim); margin-bottom: 3px; }
.detail-field-value { font-size: 13px; font-weight: 600; word-break: break-word; }
.detail-field-value.green { color: var(--green); }
.detail-field-value.amber { color: var(--amber); }
.detail-field-value.red { color: var(--red); }
.detail-field-value.dim { color: var(--text-dimmer); font-weight: 500; }

.thumb-strip { display: flex; flex-direction: column; gap: 6px; max-height: 260px; overflow-y: auto; padding-right: 2px; }
.thumb-strip-item {
  flex-shrink: 0; display: flex; align-items: center; gap: 10px; cursor: pointer;
  padding: 4px; border-radius: 6px;
}
.thumb-strip-item:hover { background: var(--panel-2); }
.thumb-strip-item img, .thumb-strip-item .ts-placeholder {
  width: 62px; height: 38px; object-fit: cover; border-radius: 5px; border: 1px solid var(--border);
  background: #060a14; flex-shrink: 0;
}
.thumb-strip-item .ts-placeholder { display: flex; align-items: center; justify-content: center; font-size: 8px; color: var(--text-dimmer); }
.thumb-strip-item .ts-time { font-size: 10px; color: var(--text-dimmer); }
.thumb-strip-item.active { background: rgba(201,162,75,0.1); }
.thumb-strip-item.active img, .thumb-strip-item.active .ts-placeholder { border-color: var(--gold); }
.no-history { font-size: 12px; color: var(--text-dimmer); }

.tags-row { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-chip { font-size: 10px; padding: 3px 8px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--border); color: var(--text-dim); }

/* ---------- Modals ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(4,7,15,0.72);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.modal {
  width: 460px; max-width: 92vw; max-height: 84vh; background: var(--panel);
  border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 24px 70px rgba(0,0,0,0.5);
  display: flex; flex-direction: column; overflow: hidden;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between; padding: 14px 16px;
  border-bottom: 1px solid var(--border); font-size: 13px; font-weight: 700;
}
.modal-body { padding: 16px; overflow-y: auto; }

/* Thumbnail scrubber */
.thumb-modal-stage {
  width: 100%; aspect-ratio: 16/9; background: #060a14; border-radius: 8px; border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; overflow: hidden; margin-bottom: 14px;
}
.thumb-modal-img { width: 100%; height: 100%; object-fit: contain; }
.thumb-modal-empty { font-size: 12px; color: var(--text-dimmer); text-align: center; padding: 20px; }
.thumb-modal-controls { display: flex; align-items: center; gap: 10px; }
.thumb-modal-controls input[type="range"] { flex: 1; accent-color: var(--gold); }
.thumb-modal-time { font-size: 11px; color: var(--text-dim); min-width: 92px; text-align: right; font-family: "SFMono-Regular", Consolas, monospace; }

/* Generic status-history modal */
.status-modal-list { display: flex; flex-direction: column; gap: 6px; max-height: 50vh; overflow-y: auto; }
.status-history-row {
  display: flex; align-items: center; justify-content: space-between; padding: 8px 10px;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 7px; font-size: 12px;
}
.status-history-time { color: var(--text-dim); font-family: "SFMono-Regular", Consolas, monospace; font-size: 11px; }
.status-history-value { font-weight: 700; }
.status-modal-empty { font-size: 12px; color: var(--text-dimmer); text-align: center; padding: 20px; }