/* ODC Training and Rescue LLC — Field CoW Companion, mobile-first navy/teal */
:root {
  --navy: #0B3D5C;
  --teal: #1A7A6D;
  --teal-light: #e8f5f2;
  --navy-light: #e8eef3;
  --danger: #b42318;
  --warn: #b54708;
  --warn-bg: #fffaeb;
  --danger-bg: #fef3f2;
  --border: #c5d0d8;
  --text: #1a2b36;
  --muted: #5a6d7a;
  --bg: #f4f7f9;
  --card: #ffffff;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(11, 61, 92, 0.12);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

*, *::before, *::after { box-sizing: border-box; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
  min-height: 100dvh;
}

.app {
  max-width: 640px;
  margin: 0 auto;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding-bottom: calc(112px + var(--safe-bottom));
}

/* Header */
.app-header {
  background: var(--navy);
  color: #fff;
  padding: 0.85rem 1rem 0.75rem;
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.app-header h1 {
  margin: 0;
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.brand-lockup {
  min-width: 0;
}

.product-name {
  display: block;
  margin-top: 0.05rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.badge {
  font-size: 0.65rem;
  font-weight: 700;
  background: var(--teal);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  text-transform: uppercase;
}

.disclaimer {
  margin: 0.45rem 0 0;
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 6px;
  padding: 0.4rem 0.55rem;
  line-height: 1.3;
}

/* Step nav */
.step-nav {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  padding: 0.5rem 0.75rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  position: sticky;
  top: 6.5rem;
  z-index: 15;
}

.step-nav::-webkit-scrollbar { display: none; }

.step-tab {
  flex: 0 0 auto;
  border: 1px solid var(--border);
  background: var(--navy-light);
  color: var(--navy);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.4rem 0.65rem;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
}

.step-tab.active {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
}

.step-tab:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

/* Panels */
.panels {
  flex: 1;
  padding: 1rem;
}

.panel {
  display: none;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem 1.1rem 1.25rem;
  border: 1px solid var(--border);
}

.panel.active { display: block; }

.panel h2 {
  margin: 0 0 0.85rem;
  font-size: 1.15rem;
  color: var(--navy);
}

.panel h3 {
  margin: 1rem 0 0.5rem;
  font-size: 0.95rem;
  color: var(--navy);
}

.hint {
  margin: 0 0 0.85rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.optional {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.8em;
}

.form-grid {
  display: grid;
  gap: 0.75rem;
}

.form-grid.compact {
  grid-template-columns: 1fr 1fr;
}

.form-grid.mt { margin-top: 1rem; }

@media (min-width: 480px) {
  .form-grid:not(.compact) {
    grid-template-columns: 1fr 1fr;
  }
  .form-grid:not(.compact) label:has(textarea),
  .form-grid:not(.compact) fieldset,
  .form-grid:not(.compact) .checkbox-row {
    grid-column: 1 / -1;
  }
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
}

.checkbox-row {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
}

.checkbox-row input { width: auto; margin: 0; }

input[type="text"],
input[type="number"],
input[type="date"],
input[type="file"],
select,
textarea {
  font: inherit;
  font-weight: 400;
  color: var(--text);
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--teal);
  outline-offset: 1px;
  border-color: var(--teal);
}

textarea { resize: vertical; min-height: 4rem; }

fieldset.checklist {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.65rem 0.85rem;
  margin: 0;
}

fieldset.checklist legend {
  font-size: 0.8rem;
  font-weight: 650;
  color: var(--navy);
  padding: 0 0.35rem;
}

.file-name {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--muted);
}

/* Crew */
.crew-list { display: grid; gap: 0.65rem; margin-bottom: 0.75rem; }

.crew-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  background: var(--navy-light);
}

.crew-card-header {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.crew-card-header input[type="text"] { flex: 1; }

.crew-roles, .crew-certs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  margin-top: 0.4rem;
  font-size: 0.75rem;
  font-weight: 500;
}

.crew-certs label, .crew-roles label {
  flex-direction: row;
  align-items: center;
  gap: 0.3rem;
  font-weight: 500;
  color: var(--text);
}

.crew-expire {
  margin-top: 0.45rem;
  font-size: 0.75rem;
}

.crew-expire label { font-weight: 500; }

.btn-remove {
  border: none;
  background: transparent;
  color: var(--danger);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  line-height: 1;
}

.red-flags {
  margin-top: 0.85rem;
  padding: 0.65rem 0.75rem;
  background: var(--warn-bg);
  border: 1px solid #f79009;
  border-radius: 8px;
  font-size: 0.8rem;
  color: var(--warn);
}

.red-flags strong { display: block; margin-bottom: 0.25rem; }

/* Readings */
.readings-list {
  margin-top: 0.75rem;
  display: grid;
  gap: 0.4rem;
}

.reading-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.35rem;
  align-items: center;
  font-size: 0.8rem;
  background: var(--teal-light);
  padding: 0.45rem 0.6rem;
  border-radius: 6px;
  border: 1px solid #b8ddd6;
}

.reading-row .vals { color: var(--text); }
.reading-row .ts { color: var(--muted); font-size: 0.7rem; }

.export-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 0.5rem;
}

/* Buttons */
.btn {
  font: inherit;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  cursor: pointer;
  border: 1px solid transparent;
  touch-action: manipulation;
}

.btn-primary {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
}

.btn-primary:hover { filter: brightness(1.05); }

.btn-secondary {
  background: var(--navy-light);
  color: var(--navy);
  border-color: var(--border);
}

.btn-ghost {
  background: transparent;
  color: var(--navy);
  border-color: var(--border);
}

.btn-sm {
  font-size: 0.75rem;
  padding: 0.35rem 0.65rem;
}

.btn.danger { color: var(--danger); border-color: #fecdca; }

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Footer nav */
.app-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem calc(0.55rem + var(--safe-bottom));
  background: var(--card);
  border-top: 1px solid var(--border);
  box-shadow: 0 -2px 8px rgba(11, 61, 92, 0.08);
  z-index: 20;
}

.footer-about {
  width: 100%;
  text-align: center;
  line-height: 1.2;
}

.footer-about strong {
  display: block;
  color: var(--navy);
  font-size: 0.72rem;
  letter-spacing: 0.01em;
}

.footer-about span {
  display: block;
  margin-top: 0.12rem;
  color: var(--muted);
  font-size: 0.65rem;
}

.footer-nav {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.step-indicator {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
}

.toolbar {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  padding: 0.75rem 1rem 0.25rem;
}

/* Print pack */
.print-pack {
  display: none;
}

@media print {
  body * { visibility: hidden; }
  .print-pack, .print-pack * { visibility: visible; }
  .print-pack {
    display: block !important;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    padding: 0.5in;
    font-size: 11pt;
    color: #000;
    background: #fff;
  }
  .print-pack h1 { font-size: 16pt; color: #0B3D5C; margin: 0; }
  .print-pack .pack-product { color: #1A7A6D; font-size: 12pt; font-weight: 650; margin: 0.1rem 0 0.45rem; }
  .print-pack .disclaimer-print {
    border: 1px solid #000;
    padding: 0.35rem 0.5rem;
    margin-bottom: 0.75rem;
    font-size: 9pt;
    font-weight: 700;
  }
  .print-pack h2 {
    font-size: 12pt;
    color: #0B3D5C;
    border-bottom: 1px solid #1A7A6D;
    margin: 0.85rem 0 0.35rem;
    padding-bottom: 0.15rem;
  }
  .print-pack table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 0.5rem;
    font-size: 10pt;
  }
  .print-pack th, .print-pack td {
    border: 1px solid #999;
    padding: 0.25rem 0.4rem;
    text-align: left;
    vertical-align: top;
  }
  .print-pack th { background: #e8eef3; width: 32%; }
  .print-pack .meta { font-size: 9pt; color: #444; margin-bottom: 0.5rem; }
  .print-pack .pack-footer {
    border-top: 2px solid #1A7A6D;
    margin-top: 1rem;
    padding-top: 0.4rem;
    color: #0B3D5C;
    font-size: 9pt;
    font-weight: 700;
  }
  .print-pack .pack-footer span { color: #444; font-weight: 400; }
}