:root {
  --bg: #0f1a1f;
  --panel: #15242c;
  --accent: #2db080;
  --accent-2: #3aaed8;
  --text: #e9f2f5;
  --muted: #8ea8b4;
  --danger: #d9534f;
  --border: #1f333d;
  --shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, #0b1318, #11202a);
  color: var(--text);
  min-height: 100vh;
}

#access-gate {
  min-height: 100vh;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
}

.gate-card {
  width: min(520px, 100%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
}

.gate-card h1 {
  margin: 0;
  font-size: 1.4rem;
}

.gate-subtitle {
  margin: 0;
  color: var(--muted);
}

.error-message {
  display: none;
  color: var(--danger);
  font-size: 0.95rem;
}

.status-banner {
  padding: 10px 14px;
  margin: 8px 18px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0c1f28;
  color: var(--text);
  box-shadow: var(--shadow);
}
.status-banner.danger { border-color: var(--danger); color: var(--danger); background: #2a1318; }
.status-banner.info { border-color: var(--accent-2); color: #cdefff; }

a { color: var(--accent); }

.demo-request {
  margin: 18px auto 0;
  padding: 18px;
  max-width: 980px;
  background: #0c171d;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.demo-request-inner { display: grid; gap: 12px; }

.demo-request h2 { margin: 0; font-size: 1.35rem; }

.demo-request p { margin: 0; line-height: 1.5; color: var(--muted); }

.demo-request-actions { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }

.demo-request-btn { text-decoration: none; }

.demo-request-email { margin: 0; }

@media (min-width: 640px) {
  .demo-request-actions { flex-direction: row; align-items: center; gap: 14px; }
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: #0c171d;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: var(--shadow);
}

.branding .title { font-size: 1.3rem; font-weight: 700; letter-spacing: 0.5px; }
.branding .subtitle { color: var(--muted); font-size: 0.9rem; }

.nav-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.nav-btn,
.accent-btn,
.primary-btn,
.secondary-btn,
.danger-btn {
  padding: 10px 14px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-btn:hover,
.primary-btn:hover,
.secondary-btn:hover,
.danger-btn:hover,
.accent-btn:hover { filter: brightness(1.05); }

.nav-btn.active { background: var(--accent-2); border-color: var(--accent-2); color: #0a151a; }
.primary-btn { background: var(--accent); border-color: var(--accent); color: #0a151a; font-weight: 600; }
.secondary-btn { background: transparent; }
.accent-btn { background: var(--accent-2); border-color: var(--accent-2); color: #0a151a; font-weight: 700; }
.danger-btn { background: transparent; border-color: var(--danger); color: var(--danger); }

details summary { cursor: pointer; font-weight: 600; }

details {
  margin-top: 18px;
  background: #101c23;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

main { padding: 18px; max-width: 1400px; margin: 0 auto; }
.panel {
  background: var(--panel);
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 18px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
  display: none;
}
.panel.active { display: block; }
.panel-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }

.grid { display: grid; gap: 12px; }
.two-col { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

label { display: flex; flex-direction: column; gap: 6px; font-size: 0.95rem; color: var(--muted); }
input, select, textarea {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0b161c;
  color: var(--text);
}
textarea { min-height: 90px; resize: vertical; }

.button-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; }
.chip-row { display: flex; gap: 6px; margin-left: 6px; }
.inline-input { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.inline-input input { flex: 1; min-width: 120px; }

.dropdown { position: relative; }
.dropdown-content {
  display: none;
  position: absolute;
  background: #0e1b22;
  border: 1px solid var(--border);
  border-radius: 8px;
  min-width: 220px;
  padding: 8px;
  z-index: 5;
  box-shadow: var(--shadow);
}
.dropdown-content button {
  width: 100%;
  margin: 4px 0;
}

.phase-list { display: grid; gap: 12px; }
.phase-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: #0f1c24;
}
.phase-card header { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.phase-card .summary { color: var(--muted); font-size: 0.9rem; margin-top: 6px; }
.phase-card .tasks { margin-top: 8px; }
.phase-card .tasks textarea { min-height: 70px; }
.phase-card .assets-used { margin-top: 8px; }
.phase-order { display: flex; gap: 6px; }

.asset-table { overflow-x: auto; }
.asset-table table { width: 100%; border-collapse: collapse; }
.asset-table th, .asset-table td {
  padding: 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.asset-table th { color: var(--muted); background: #0d191f; }
.asset-actions { display: flex; gap: 8px; }

.matrix { overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; }
.matrix table { width: 100%; border-collapse: collapse; }
.matrix th, .matrix td { padding: 8px; border-bottom: 1px solid var(--border); text-align: center; }
.matrix th { background: #0d191f; }

.phase-summary {
  margin-top: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0d191f;
  padding: 10px;
  max-height: 240px;
  overflow-y: auto;
  display: grid;
  gap: 8px;
}
.phase-summary-row {
  display: grid;
  grid-template-columns: 2fr 3fr auto;
  gap: 8px;
  align-items: center;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f1c24;
}
.phase-summary-title { display: flex; flex-direction: column; gap: 4px; }
.phase-summary-assets { font-size: 0.95rem; }

.editable-list { display: grid; gap: 8px; margin: 8px 0; }
.editable-list .row { display: flex; gap: 8px; align-items: center; }
.editable-list input { flex: 1; }

.mission-card { border: 1px solid var(--border); border-radius: 10px; padding: 12px; background: #0f1c24; box-shadow: var(--shadow); }
.mission-card + .mission-card { margin-top: 12px; }
.mission-card .card-header { display: flex; justify-content: space-between; align-items: center; }
.mission-card .card-title { font-size: 1.1rem; font-weight: 700; }
.mission-card .warning { color: var(--danger); margin: 6px 0 0; }
.pill { padding: 4px 8px; border-radius: 12px; font-size: 0.85rem; background: #19313e; color: #8ee2c1; }
.pill.danger { background: #36171c; color: #f5a3a3; }

.feasibility { margin-top: 18px; }
.feasibility-banner { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 8px; background: #0d191f; padding: 12px; border-radius: 10px; border: 1px solid var(--border); }
.feasibility .flag { padding: 6px 8px; background: #13262f; border-radius: 8px; }
.feasibility .flag.danger { background: #2c1a1d; color: #f5a3a3; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; margin-top: 12px; }
.mission-summary {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: #0f1c24;
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  align-items: center;
}
.mission-summary .title {
  font-weight: 700;
  font-size: 1.1rem;
}
.mission-summary .meta { color: var(--muted); }
.mission-summary .counts { text-align: right; color: var(--muted); }
.center { text-align: center; }

.brief { background: #0f1c24; border-radius: 10px; padding: 16px; border: 1px solid var(--border); line-height: 1.5; }
.brief h3 { margin-bottom: 6px; }
.brief .phase-block { margin: 12px 0; padding: 10px; border: 1px solid var(--border); border-radius: 8px; }
.brief .asset-table { margin-top: 10px; }
.export-block textarea { width: 100%; min-height: 160px; border-radius: 8px; padding: 10px; background: #0b161c; color: var(--text); }

.parse-btn { margin-top: 8px; }

@media (max-width: 768px) {
  .top-nav { flex-direction: column; align-items: flex-start; gap: 10px; }
  .nav-tabs { width: 100%; }
  main { padding: 12px; }
}

@media print {
  body { background: #fff; color: #000; }
  .top-nav,
  .nav-tabs,
  button,
  .button-row,
  details,
  .parse-btn,
  .dropdown,
  .export-block textarea,
  .panel-header button,
  .feasibility,
  #brief,
  #setup,
  #phases,
  #assets,
  #constraints { display: none !important; }
  .panel { display: block; border: none; box-shadow: none; background: #fff; }
  .mission-summary { border: none; background: #fff; padding: 0 0 12px; }
  .brief { border: none; background: #fff; color: #000; }
  .mission-card {
    page-break-inside: avoid;
    border: 1px solid #000;
    background: #fff;
    color: #000;
    break-inside: avoid;
    padding: 16px;
  }
  .cards { grid-template-columns: 1fr; gap: 16px; }
  textarea, input, select { border: none; }
}