:root {
  color-scheme: dark;
  --bg: #0d1016;
  --panel: #151922;
  --subpanel: #111720;
  --subpanel-soft: #171d29;
  --control: #202637;
  --control-border: #465064;
  --border: #30384a;
  --text: #f4f7fb;
  --muted: #aeb8c8;
  --quiet: #7f8a9d;
  --accent: #6ed5ff;
  --accent-2: #9ee8ff;
  --good: #84f2a0;
  --warn: #ffd36b;
  --bad: #ff8d8d;
  font-family: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(110, 213, 255, 0.08), transparent 34rem),
    var(--bg);
  color: var(--text);
}

main {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

header {
  margin-bottom: 18px;
}

h1, h2, h3, p {
  margin-top: 0;
}

h1 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 32px;
  line-height: 1.1;
  margin-bottom: 7px;
}

h2 {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--accent);
  font-size: 18px;
  line-height: 1.2;
  margin-bottom: 4px;
}

h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 13px;
  line-height: 1.2;
  margin: 0 0 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h4 {
  color: var(--accent);
  font-size: 14px;
  margin: 0 0 8px;
}

.section-icon,
.mini-icon,
.part-icon {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid rgba(110, 213, 255, 0.38);
  background: rgba(110, 213, 255, 0.12);
  color: var(--accent-2);
  font-weight: 800;
  line-height: 1;
}

.part-icon-img,
.field-icon-img {
  flex: 0 0 auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.34));
}

.part-icon-img {
  width: 34px;
  height: 34px;
}

.field-icon-img {
  width: 22px;
  height: 22px;
}

.field-icon-img.is-empty {
  visibility: hidden;
}

.title-img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  filter: drop-shadow(0 4px 10px rgba(255, 146, 65, 0.24));
}

.section-icon {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  font-size: 11px;
}

.mini-icon {
  width: 24px;
  height: 20px;
  border-radius: 5px;
  font-size: 10px;
}

.part-icon {
  width: 28px;
  height: 28px;
  border-color: rgba(255, 211, 107, 0.36);
  background: rgba(255, 211, 107, 0.12);
  color: var(--warn);
  border-radius: 6px;
  font-size: 10px;
}

p {
  color: var(--muted);
  margin-bottom: 0;
}

.panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent), var(--panel);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 14px;
}

.subpanel {
  background: var(--subpanel);
  border: 1px solid #263044;
  border-radius: 6px;
  padding: 16px;
  margin-top: 14px;
}

.calculator-panel {
  display: grid;
  gap: 2px;
}

.plan-mode {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 12px;
  background: var(--subpanel);
  border: 1px solid #263044;
  border-radius: 6px;
}

.plan-mode-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  margin-right: 4px;
}

.plan-mode label {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--text);
  font-size: 13px;
}

.plan-mode input {
  width: auto;
  accent-color: var(--accent);
}

.section-copy {
  font-size: 13px;
  margin: -4px 0 14px;
}

#existingWeaponCatalogField:not([hidden]) + .section-copy {
  margin-top: 10px;
}

.calculate-action {
  display: flex;
  justify-content: flex-start;
  padding: 14px 0 2px;
}

.calculate-action button {
  min-width: 150px;
}

.target-group + .target-group {
  border-top: 1px solid #273146;
  margin-top: 16px;
  padding-top: 16px;
}

.target-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 12px;
}

.target-toggle input {
  width: auto;
  accent-color: var(--accent);
}

.import-panel textarea {
  min-height: 120px;
}

.file-input {
  display: none;
}

.drop-zone {
  border: 1px dashed #4d5a72;
  border-radius: 7px;
  padding: 10px;
  background: rgba(110, 213, 255, 0.035);
  transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.drop-zone.is-dragging {
  border-color: var(--accent);
  background: rgba(110, 213, 255, 0.1);
  box-shadow: 0 0 0 2px rgba(110, 213, 255, 0.12);
}

.drop-zone textarea {
  border-style: solid;
}

.import-status {
  color: var(--quiet);
  font-size: 12px;
  margin-top: 8px;
}

.import-status.ok {
  color: var(--good);
}

.import-status.bad {
  color: var(--bad);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(185px, 1fr));
  gap: 12px;
}

.grid.compact {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(220px, 1fr));
}

.materials {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.material-card {
  background: var(--subpanel-soft);
  border: 1px solid #293246;
  border-radius: 6px;
  padding: 12px;
  display: grid;
  gap: 10px;
}

.card-title {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--text);
  font-weight: 700;
  font-size: 14px;
}

.reinforcement-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

label {
  display: grid;
  gap: 6px;
  color: #c5cedb;
  font-size: 12px;
  font-weight: 600;
}

.field-label {
  display: flex;
  align-items: center;
  gap: 7px;
}

input, select, textarea, button {
  font: inherit;
}

input, select, textarea {
  width: 100%;
  color: var(--text);
  background: var(--control);
  border: 1px solid var(--control-border);
  border-radius: 5px;
  padding: 9px 10px;
  outline: none;
  font-weight: 500;
}

.weapon-select {
  position: relative;
  display: block;
}

.weapon-select select {
  min-height: 44px;
  padding-left: 48px;
}

.weapon-icon {
  position: absolute;
  left: 9px;
  top: 50%;
  z-index: 1;
  width: 30px;
  height: 30px;
  object-fit: contain;
  pointer-events: none;
  transform: translateY(-50%);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.36));
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(110, 213, 255, 0.12);
}

textarea {
  min-height: 96px;
  resize: vertical;
  font-family: Consolas, "Cascadia Mono", monospace;
  line-height: 1.4;
  tab-size: 2;
}

button {
  color: #071116;
  background: var(--accent);
  border: 0;
  border-radius: 5px;
  padding: 9px 12px;
  font-weight: 750;
  cursor: pointer;
  min-height: 38px;
}

button:hover {
  background: var(--accent-2);
}

button.secondary {
  color: var(--text);
  background: #283146;
  border: 1px solid #3a465c;
}

button.secondary:hover {
  background: #333d55;
}

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

.checks {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid #273146;
}

.checks label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

.checks input {
  width: auto;
  accent-color: var(--accent);
}

.summary {
  color: var(--quiet);
  margin-top: 12px;
  font-size: 13px;
}

.result {
  white-space: pre-wrap;
  line-height: 1.6;
  background: var(--subpanel);
  border: 1px solid #263044;
  border-radius: 6px;
  padding: 16px;
  min-height: 96px;
  font-size: 14px;
}

.ok { color: var(--good); }
.warn { color: var(--warn); }
.bad { color: var(--bad); }

@media (max-width: 850px) {
  .panel-head {
    display: grid;
  }

  .grid.two,
  .materials,
  .reinforcement-grid {
    grid-template-columns: 1fr;
  }

  .plan-mode {
    align-items: flex-start;
    flex-direction: column;
  }
}