:root {
  --bg: #0b1020;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-2: rgba(255, 255, 255, 0.08);
  --surface: rgba(255, 255, 255, 0.06);
  --surface-2: rgba(255, 255, 255, 0.04);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.62);
  --border: rgba(255, 255, 255, 0.14);
  --accent: #7c5cff;
  --danger: #ff4d6d;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --fs-scale: 1;
}

* {
  box-sizing: border-box;
}

* {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

*::-webkit-scrollbar {
  width: 0;
  height: 0;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-size: calc(16px * var(--fs-scale));
  background:
    radial-gradient(1200px 800px at 15% 10%, rgba(124, 92, 255, 0.35), transparent 60%),
    radial-gradient(900px 600px at 85% 20%, rgba(0, 212, 255, 0.18), transparent 55%),
    radial-gradient(800px 600px at 50% 95%, rgba(255, 77, 109, 0.12), transparent 55%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
}

body.modal-open {
  overflow: hidden;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 18px 40px;
}

.header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.font-size-control {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.18);
}

.font-size-label {
  font-weight: 700;
  font-size: calc(12px * var(--fs-scale));
  color: var(--muted);
}

.font-size-val {
  font-weight: 800;
  font-size: calc(12px * var(--fs-scale));
  color: var(--text);
  min-width: 92px;
  text-align: center;
  user-select: none;
}

.font-btn {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 900;
  font-size: calc(12px * var(--fs-scale));
  line-height: 1;
  user-select: none;
}

.font-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

@media (max-width: 520px) {
  .header-actions {
    width: 100%;
  }
  .header-actions .btn {
    flex: 1 1 auto;
  }

  .font-size-control {
    width: 100%;
    justify-content: space-between;
  }
}

h1 {
  font-size: calc(28px * var(--fs-scale));
  margin: 0 0 6px;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  line-height: 1.4;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.card {
  grid-column: span 6;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.card.full {
  grid-column: 1 / -1;
}

@media (max-width: 920px) {
  .card {
    grid-column: 1 / -1;
  }
}

h2 {
  font-size: calc(16px * var(--fs-scale));
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field.full {
  grid-column: 1 / -1;
}

.field > span {
  font-size: calc(12px * var(--fs-scale));
  color: var(--muted);
}

input {
  width: 100%;
  padding: 10px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
  outline: none;
}

input:focus {
  border-color: rgba(124, 92, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.22);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.stats.compare {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 920px) {
  .stats.compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .stats.compare {
    grid-template-columns: 1fr;
  }
}

.stat {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px 12px;
  background: var(--surface-2);
}

.stat-label {
  font-size: calc(12px * var(--fs-scale));
  color: var(--muted);
}

.stat-value {
  margin-top: 6px;
  font-size: calc(18px * var(--fs-scale));
  font-weight: 700;
}

.hint {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: calc(12px * var(--fs-scale));
  line-height: 1.4;
}

.btn {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn.secondary {
  background: rgba(0, 0, 0, 0.18);
}

.scenario {
  margin-top: 12px;
  display: grid;
  gap: 10px;
}

.scenario-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-2);
}

.table-wrap::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.table {
  width: 100%;
  border-collapse: collapse;
  min-width: 860px;
}

.table th,
.table td {
  padding: 12px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  text-align: left;
}

.table th {
  font-size: calc(12px * var(--fs-scale));
  color: var(--muted);
  font-weight: 600;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.muted {
  color: var(--muted);
  font-size: calc(12px * var(--fs-scale));
}

.total-label {
  text-align: right;
  font-weight: 700;
}

.total-value {
  font-weight: 800;
  font-size: calc(16px * var(--fs-scale));
}

.footer-note {
  margin-top: 12px;
  border: 1px dashed rgba(255, 255, 255, 0.22);
  border-radius: 14px;
  padding: 10px 12px;
  background: var(--surface-2);
}

.note {
  color: var(--muted);
  font-size: calc(12px * var(--fs-scale));
  line-height: 1.45;
}

#popupHost {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.popup-window {
  position: absolute;
  width: 560px;
  height: 520px;
  display: flex;
  flex-direction: column;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  overflow: hidden;
  pointer-events: auto;
}

.popup-window.popup-fullscreen {
  left: 0 !important;
  top: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  border-radius: 0;
}

@supports (height: 100dvh) {
  .popup-window.popup-fullscreen {
    height: 100dvh !important;
  }
}

.popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  background: var(--surface-2);
  cursor: grab;
  user-select: none;
}

.popup-title {
  font-weight: 700;
  font-size: calc(13px * var(--fs-scale));
  letter-spacing: -0.01em;
}

.popup-actions {
  display: flex;
  gap: 8px;
}

.popup-btn {
  width: 34px;
  height: 30px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.18);
  color: rgba(255, 255, 255, 0.92);
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
  font-size: calc(12px * var(--fs-scale));
}

.popup-btn:hover {
  background: rgba(255, 255, 255, 0.10);
}

.popup-body {
  flex: 1 1 auto;
  min-height: 0;
}

.popup-iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: transparent;
  display: block;
}

.popup-resizer {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 18px;
  height: 18px;
  cursor: nwse-resize;
  background:
    linear-gradient(135deg, transparent 0 55%, rgba(255, 255, 255, 0.22) 55% 60%, transparent 60% 70%, rgba(255, 255, 255, 0.22) 70% 75%, transparent 75%);
}