/* ===== Variables ===== */
:root {
  --color-bg: #f5f5f5;
  --color-paper: #fff;
  --color-border: #ccc;
  --color-text: #1a1a1a;
  --color-accent: #0d47a1;
  --color-link: #1565c0;
  --color-placeholder: #d0d0d0;
  --color-placeholder-print: #f4f4f4;
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Consolas', 'Monaco', monospace;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --radius: 6px;
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 16px; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
}

.app { max-width: 900px; margin: 0 auto; padding: 1.5rem; display: flex; flex-direction: column; min-height: 100vh; }

.app-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}
.app-header h1 { margin: 0 0 0.25rem 0; font-size: 1.5rem; }
.subtitle { margin: 0; font-size: 0.9rem; color: #555; }
.subtitle a { color: var(--color-link); }
.subtitle .version { font-size: 0.75rem; color: #888; font-weight: 500; }
.subtitle .print-hint { font-size: 0.8rem; color: #555; }

/* ===== Controls ===== */
.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.control-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: #444;
}
.control-group.actions { margin-left: auto; display: flex; gap: 0.5rem; }
.btn {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-family: inherit;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid var(--color-border);
  background: var(--color-paper);
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover { filter: brightness(1.1); }
.btn-secondary:hover { background: #eee; }
.btn-small { padding: 0.35rem 0.65rem; font-size: 0.85rem; }

/* ===== Import from roster ===== */
.import-section {
  background: #f0f4f8;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}
.import-section h3 { margin: 0 0 0.35rem 0; font-size: 1rem; }
.import-lead {
  margin: 0 0 0.75rem 0;
  font-size: 0.9rem;
  color: #333;
  line-height: 1.45;
}
.import-help {
  margin: 0 0 1rem 0;
  padding: 0.85rem 1rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.88rem;
  line-height: 1.5;
  color: #333;
}
.import-help h4 {
  margin: 0 0 0.5rem 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: #222;
}
.import-help ol {
  margin: 0;
  padding-left: 1.25rem;
}
.import-help li { margin-bottom: 0.4rem; }
.import-help li:last-child { margin-bottom: 0; }
.import-help code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: #eef2f6;
  padding: 0.1em 0.35em;
  border-radius: 3px;
}
.import-help kbd {
  font-family: var(--font-mono);
  font-size: 0.8em;
  padding: 0.12em 0.4em;
  border: 1px solid #ccc;
  border-radius: 3px;
  background: #f7f7f7;
  box-shadow: 0 1px 0 #ddd;
}
.import-help-tip {
  margin: 0.65rem 0 0 0;
  padding-top: 0.6rem;
  border-top: 1px solid #e0e0e0;
  font-size: 0.82rem;
  color: #555;
}
.import-paste { margin-top: 0.75rem; }
.import-paste label { display: block; font-size: 0.8rem; font-weight: 600; margin-bottom: 0.25rem; color: #444; }
.import-paste textarea {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  margin-bottom: 0.5rem;
  resize: vertical;
}

/* ===== Briefing sheet (screen) ===== */
.sheet-container { margin-bottom: 2rem; flex: 1; display: flex; flex-direction: column; min-height: 0; }
.briefing-sheet {
  background: var(--color-paper);
  padding: 1.5rem 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 400px;
}

.sheet-header {
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-accent);
}
.sheet-header h2 { margin: 0; font-size: 1.35rem; }
.sheet-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  margin-top: 0.5rem;
  align-items: flex-end;
}
.sheet-meta .field { margin: 0; }
.sheet-meta .sheet-date .sheet-date-display {
  display: block;
  font-size: 9pt;
  font-weight: 600;
  color: #444;
  min-height: 2rem;
  padding: 0.35rem 0;
}
.sheet-meta .sheet-signon input { min-width: 120px; }
.sheet-meta .sheet-signoff input { min-width: 120px; }
.briefing-date-display {
  margin: 0.25rem 0 0 0;
  font-size: 9pt;
  font-weight: 600;
  color: #444;
}

.briefing-sheet h3 {
  font-size: 0.95rem;
  margin: 1rem 0 0.5rem 0;
  color: #333;
}
.briefing-sheet h3:first-of-type { margin-top: 0; }

.crew-section .crew-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.crew-section .crew-row {
  display: grid;
  gap: 0.75rem 1rem;
}
.crew-section .crew-row-pilots {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 100%;
}
.crew-section .crew-row-cabin {
  grid-template-columns: repeat(3, 1fr);
}
.crew-staff-id {
  display: block;
  width: 100%;
  margin-top: 0.15rem;
  padding: 0.2rem 0.35rem;
  font-size: 9pt;
  line-height: 1.3;
  color: #555;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  font-family: var(--font-mono);
}
.duty-section {
  display: none;
}
.duty-section .full { flex: 1 1 100%; }
.duty-section .field { flex: 1 1 180px; }

.field label {
  display: block;
  font-size: 9pt;
  font-weight: 600;
  margin-bottom: 0.2rem;
  color: #555;
}
.field input,
.field textarea {
  width: 100%;
  padding: 0.4rem 0.5rem;
  font-size: 9pt;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: inherit;
}
.field textarea { resize: vertical; min-height: 60px; }

/* Hint text: very light; almost invisible on print */
.briefing-sheet input::placeholder,
.briefing-sheet textarea::placeholder {
  color: var(--color-placeholder);
  opacity: 1;
}

.flights-section { margin-top: 1.25rem; flex-shrink: 0; }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.flights-list { display: flex; flex-direction: column; gap: 0.75rem; }

.flight-block {
  padding: 0.5rem;
  background: #fafafa;
  border-radius: 4px;
  border: 1px solid #eee;
}
.flight-row {
  display: grid;
  grid-template-columns: 90px 1fr 1fr auto 1fr 1fr 32px;
  gap: 0.5rem;
  align-items: end;
}
.flight-row-2 {
  display: grid;
  grid-template-columns: 140px 1fr 1fr;
  gap: 0.5rem 1rem;
  align-items: end;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid #eee;
}
.flight-row-2 .field { min-width: 0; }
.flight-row-2 label { font-size: 9pt; }
.flight-row-2 input { font-size: 9pt; padding: 0.35rem 0.4rem; }
.flight-reg { min-width: 120px; }
.route-arrow {
  display: block;
  align-self: end;
  justify-self: center;
  width: 1.5rem;
  height: 1.25rem;
  min-width: 1.5rem;
  min-height: 1.25rem;
  margin-bottom: 0.2rem;
  background-image: url("data:image/webp;base64,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");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  filter: brightness(0);
}
.flight-row .flight-number { min-width: 0; }
.flight-row .flight-route { min-width: 0; }
.flight-row .flight-time { min-width: 0; }
.flight-row label { font-size: 9pt; }
.flight-row input { font-size: 9pt; padding: 0.35rem 0.4rem; }
.btn-remove-flight {
  width: 28px;
  height: 28px;
  padding: 0;
  font-size: 1.2rem;
  line-height: 1;
  border: 1px solid #ccc;
  background: #fff;
  border-radius: 4px;
  cursor: pointer;
  color: #666;
  align-self: center;
}
.btn-remove-flight:hover { background: #fee; color: #c00; }

.notes-section {
  margin-top: 1rem;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 120px;
  width: 100%;
}
.notes-section label { display: block; font-size: 9pt; font-weight: 600; margin-bottom: 0.2rem; color: #555; }
.notes-section textarea {
  flex: 1;
  min-height: 100px;
  width: 100%;
}

/* ===== A4 Print / PDF ===== */
@media print {
  body { background: #fff; }
  .app { max-width: none; padding: 0; }
  .app-header,
  .controls { display: none !important; }
  .print-hint { display: none !important; }
  .import-section { display: none !important; }
  .sheet-container { margin: 0; }
  .briefing-sheet {
    box-shadow: none;
    border: none;
    padding: 10mm 12mm;
    min-height: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  .briefing-sheet h2 { font-size: 28pt; }
  .briefing-sheet h3 { font-size: 22pt; }
  .briefing-sheet .field label,
  .briefing-sheet .field input,
  .briefing-sheet .field textarea,
  .briefing-sheet .sheet-date-display,
  .briefing-sheet .crew-staff-id,
  .briefing-sheet .flight-row label,
  .briefing-sheet .flight-row input,
  .briefing-sheet .flight-row-2 label,
  .briefing-sheet .flight-row-2 input,
  .briefing-sheet .notes-section label,
  .briefing-sheet .notes-section textarea {
    font-size: 18pt !important;
  }
  /* Prevent wrapping - keep all content on single lines */
  .briefing-sheet input,
  .briefing-sheet .sheet-date-display,
  .sheet-meta .field {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .briefing-sheet textarea {
    white-space: pre-wrap;
  }
  .sheet-meta {
    flex-wrap: nowrap;
  }
  .sheet-meta .sheet-signon input,
  .sheet-meta .sheet-signoff input {
    min-width: 4.5em;
  }
  .briefing-sheet input,
  .briefing-sheet textarea {
    border: none;
    border-bottom: 1px solid #333;
    background: transparent;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .briefing-sheet input::placeholder,
  .briefing-sheet textarea::placeholder {
    color: var(--color-placeholder-print) !important;
    opacity: 1;
  }
  .crew-staff-id,
  .field input {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .flight-block {
    background: #f9f9f9;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .flight-row input {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .notes-section {
    flex: 1 1 auto;
    min-height: 80mm;
    width: 100%;
  }
  .notes-section textarea {
    min-height: 60mm;
    width: 100%;
  }
  .btn-add-flight,
  .btn-remove-flight { display: none !important; }
  @page {
    size: A4;
    margin: 8mm;
  }
}

/* Narrow screens: stack flight row */
@media (max-width: 700px) {
  .crew-section .crew-row-pilots {
    grid-template-columns: 1fr;
  }
  .crew-section .crew-row-cabin {
    grid-template-columns: 1fr;
  }
  .flight-row {
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-areas:
      "fn fn remove"
      "orig dest ."
      "dep arr .";
  }
  .flight-row .flight-number { grid-area: fn; }
  .flight-row .flight-route:first-of-type { grid-area: orig; }
  .route-arrow { display: none; }
  .flight-row .flight-route:last-of-type { grid-area: dest; }
  .flight-row .flight-time:first-of-type { grid-area: dep; }
  .flight-row .flight-time:last-of-type { grid-area: arr; }
  .btn-remove-flight { grid-area: remove; justify-self: end; }
  .flight-row-2 {
    grid-template-columns: 1fr;
  }
}