:root {
  --bg: #061737;
  --card: #0a2754;
  --field: #10386c;
  --border: #2a6cc1;
  --text: #eaf8ff;
  --muted: #9dc6e9;
  --accent: #23c8ff;
  --accent-soft: #6be7ff;
  --result-bg: #0d2f5f;
  --warn: #8de4ff;
  --danger: #ffb0b0;
  --danger-bg: #4a2d2d;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Georgia", "Times New Roman", serif;
  background:
    radial-gradient(circle at 20% 15%, rgba(35, 200, 255, 0.2), transparent 42%),
    radial-gradient(circle at 85% 70%, rgba(22, 109, 227, 0.2), transparent 40%),
    linear-gradient(170deg, #04112b 0%, var(--bg) 45%, #0a2351 100%);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  background: linear-gradient(165deg, rgba(10, 39, 84, 0.96), rgba(8, 31, 69, 0.98));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 36px;
  width: 100%;
  max-width: 560px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
}

header { text-align: center; margin-bottom: 28px; }

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: center;
}

.brand-logo {
  width: 68px;
  height: 68px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(35, 200, 255, 0.35));
}

.brand-name {
  color: var(--accent-soft);
  font-size: 0.9rem;
  letter-spacing: 0.4px;
  margin-bottom: 2px;
}

h1 {
  font-size: 1.7rem;
  color: var(--accent-soft);
  letter-spacing: 0.5px;
  font-weight: 600;
}

.subtitle {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 6px;
  font-style: italic;
}

.version-badge {
  margin-top: 8px;
  display: inline-block;
  font-size: 0.76rem;
  color: #07213f;
  background: linear-gradient(145deg, var(--accent), var(--accent-soft));
  border-radius: 999px;
  padding: 3px 10px;
  font-weight: 700;
}

.view-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 18px;
}

.view-btn {
  width: 100%;
  margin-top: 0;
  padding: 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--field);
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.view-btn.active {
  background: linear-gradient(145deg, var(--accent), var(--accent-soft));
  color: #032540;
  border-color: var(--accent);
}

.inputs { display: flex; flex-direction: column; gap: 20px; }

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

.label-text { font-size: 1rem; color: var(--text); font-weight: 600; }

.input-row {
  display: flex;
  align-items: center;
  background: var(--field);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.input-row:focus-within { border-color: var(--accent); }

input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1.1rem;
  padding: 12px 14px;
  font-family: inherit;
}

input:focus { outline: none; }

.unit {
  padding: 0 16px;
  color: var(--muted);
  font-size: 0.95rem;
  border-left: 1px solid var(--border);
  align-self: stretch;
  display: flex;
  align-items: center;
}

.toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 8px;
}

.toggle .toggle-btn {
  width: 100%;
  margin-top: 0;
  padding: 10px;
  background: var(--field);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
}

.toggle .toggle-btn.active {
  background: linear-gradient(145deg, var(--accent), var(--accent-soft));
  color: #032540;
  border-color: var(--accent);
}

.toggle .toggle-btn:focus-visible,
#calcBtn:focus-visible,
.ghost-btn:focus-visible,
.preset-btn:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 2px;
}

.helper-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
}

.ghost-btn {
  width: auto;
  margin-top: 0;
  padding: 9px 12px;
  background: transparent;
  color: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.ghost-btn:hover {
  background: rgba(35, 200, 255, 0.2);
}

.field-error {
  min-height: 1.1em;
  font-size: 0.8rem;
  color: var(--danger);
}

.input-row.invalid {
  border-color: var(--danger);
  background: var(--danger-bg);
}

.presets,
.output-mode,
.safety-checklist,
.confidence-check {
  margin-top: 22px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(10, 22, 33, 0.45);
}

.presets h2,
.output-mode h2,
.safety-checklist h2,
.confidence-check h2 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin-bottom: 10px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.section-toggle {
  width: auto;
  margin-top: 0;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--field);
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  cursor: pointer;
}

.section-body {
  margin-top: 8px;
}

.collapsible-card.is-collapsed .section-body {
  display: none;
}

.preset-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.custom-preset-form {
  display: grid;
  gap: 8px;
}

.reminder-form {
  display: grid;
  gap: 10px;
}

.reminder-form select {
  width: 100%;
  margin-top: 4px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--field);
  color: var(--text);
  font-family: inherit;
}

.custom-preset-list {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.custom-preset-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.custom-preset-item.done {
  opacity: 0.7;
}

.custom-preset-item .title {
  display: block;
}

.custom-preset-item .meta {
  font-size: 0.8rem;
  color: var(--muted);
}

.custom-preset-actions {
  display: flex;
  gap: 6px;
}

.mini-btn {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 8px;
  background: var(--field);
  color: var(--text);
  font-size: 0.76rem;
  cursor: pointer;
}

.mini-btn:hover {
  border-color: var(--accent);
}

.preset-btn {
  width: 100%;
  margin-top: 0;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--field);
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 700;
}

.preset-btn:hover {
  border-color: var(--accent);
  background: rgba(35, 200, 255, 0.12);
}

.mode-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.mode-grid label {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text);
}

.mode-grid input[type="radio"] {
  accent-color: var(--accent);
}

.u100-note {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.4;
}

.u100-note strong {
  color: var(--warn);
}

.safety-checklist ul {
  list-style: disc;
  padding-left: 18px;
  color: var(--text);
  line-height: 1.45;
  font-size: 0.88rem;
}

.check-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 8px;
}

.check-item input[type="checkbox"] {
  accent-color: var(--accent);
}

#calcBtn:disabled {
  background: #6a6550;
  color: #d9d7cd;
  cursor: not-allowed;
}

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

#calcBtn {
  width: 100%;
  margin-top: 26px;
  padding: 14px;
  background: linear-gradient(145deg, var(--accent), var(--accent-soft));
  color: #032540;
  border: none;
  border-radius: 8px;
  font-size: 1.05rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  letter-spacing: 0.3px;
  transition: background 0.15s ease;
}

#calcBtn:hover {
  filter: brightness(1.03);
}

.result {
  margin-top: 24px;
  background: var(--result-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.result.hidden { display: none; }

.result .headline {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 4px;
}

.result .big {
  font-size: 2.1rem;
  color: var(--accent-soft);
  font-weight: 700;
  margin-bottom: 2px;
}

.result .big-sub { color: var(--muted); font-size: 0.95rem; margin-bottom: 18px; }

.dose-count {
  margin: -8px 0 12px;
  font-size: 0.88rem;
  color: var(--text);
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
}

.dose-count strong {
  color: var(--accent-soft);
}

.syringe-visual {
  margin-bottom: 18px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(8, 24, 36, 0.45);
}

.syringe-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin-bottom: 8px;
}

.syringe-bar {
  position: relative;
  height: 28px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(0, 0, 0, 0.2));
  overflow: hidden;
  margin-bottom: 8px;
}

.syringe-fill {
  position: absolute;
  inset: 0 auto 0 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft));
  box-shadow: inset 0 0 8px rgba(255, 255, 255, 0.25);
}

.syringe-marks {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 6px;
  right: 14px;
  pointer-events: none;
}

.tick {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  transform: translateX(-50%);
}

.tick-line,
.tick-line-top {
  position: absolute;
  left: 0;
  width: 1px;
  background: rgba(228, 243, 252, 0.45);
}

.tick-line {
  bottom: 9px;
}

.tick.minor .tick-line {
  height: 4px;
}

.tick.minor .tick-line-top {
  top: 0;
  height: 4px;
}

.tick.major .tick-line {
  height: 8px;
  background: rgba(236, 247, 255, 0.7);
}

.tick.major .tick-line-top {
  top: 0;
  height: 8px;
  background: rgba(236, 247, 255, 0.65);
}

.tick.edge-left {
  transform: translateX(0);
}

.tick.edge-right {
  transform: translateX(-100%);
}

.tick-label {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  font-size: 0.7rem;
  color: #d8ecf7;
}

.syringe-meta {
  font-size: 0.98rem;
  color: var(--text);
}

.syringe-note {
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--warn);
}

.result .work { border-top: 1px solid var(--border); padding-top: 14px; }

.result .work-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 8px;
}

.result .work-line {
  font-size: 0.92rem;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.45;
}

.result.error {
  background: #3a2727;
  border-color: #6b4040;
}

.result.error .msg { color: #e0a0a0; font-size: 0.95rem; line-height: 1.5; }

.result .timestamp {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
  font-size: 0.78rem;
  color: var(--muted);
}

.result-actions {
  margin-top: 12px;
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.print-clean-toggle {
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--muted);
}

.print-clean-toggle input {
  accent-color: var(--accent);
}

.research-links {
  margin-top: 20px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(10, 22, 33, 0.45);
}

.research-links h2 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin-bottom: 8px;
}

.research-links ul {
  margin-top: 8px;
  list-style: disc;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.research-links a {
  color: var(--accent-soft);
  text-underline-offset: 2px;
}

.research-links a:hover {
  color: #ffd4aa;
}

.library-view {
  margin-top: 4px;
}

.library-view h2 {
  font-size: 1rem;
  color: var(--accent-soft);
  margin-bottom: 4px;
}

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

.library-filters {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.library-filters select {
  width: 100%;
  margin-top: 4px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--field);
  color: var(--text);
  font-family: inherit;
}

.library-cards {
  margin-top: 10px;
  display: grid;
  gap: 10px;
}

.library-card {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(8, 24, 36, 0.45);
}

.library-card h3 {
  color: var(--accent-soft);
  font-size: 1.02rem;
  margin-bottom: 8px;
}

.library-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.pill {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 0.72rem;
  color: var(--muted);
}

.pill.status.approved {
  border-color: #4db88d;
  color: #9ce8c8;
}

.pill.status.investigational {
  border-color: #c99d57;
  color: #ffd799;
}

.pill.status.limited {
  border-color: #8ca8bc;
  color: #c9dbe7;
}

.pill.evidence {
  border-color: #8b7dd8;
  color: #d6ceff;
}

.library-overview {
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--text);
  margin-bottom: 8px;
}

.library-list-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin: 8px 0 4px;
}

.library-list,
.source-links {
  list-style: disc;
  padding-left: 18px;
  display: grid;
  gap: 3px;
}

.library-list li,
.source-links li {
  font-size: 0.84rem;
  line-height: 1.35;
}

.source-links a {
  color: var(--accent-soft);
  text-underline-offset: 2px;
}

.hidden {
  display: none;
}

.disclaimer {
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.55;
}

.disclaimer strong { color: var(--warn); }

@media (max-width: 600px) {
  body {
    padding: 12px;
    align-items: flex-start;
  }

  .card {
    padding: 18px;
    max-width: 100%;
  }

  h1 {
    font-size: 1.4rem;
  }

  .preset-grid {
    grid-template-columns: 1fr;
  }

  .library-filters {
    grid-template-columns: 1fr;
  }

  .result .big {
    font-size: 1.7rem;
  }

  .collapsible-card.mobile-collapsed .section-body {
    display: none;
  }
}

@media print {
  * {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  body {
    background: #ffffff;
    color: #000000;
    padding: 0;
  }

  .card {
    box-shadow: none;
    border: none;
    max-width: 100%;
  }

  .inputs,
  .presets,
  .output-mode,
  .safety-checklist,
  .confidence-check,
  #calcBtn,
  .result-actions,
  .disclaimer {
    display: none;
  }

  .result {
    display: block;
    border: 1px solid #999;
    color: #000;
    background: #fff;
  }

  body.print-clean .result {
    border-color: #555;
    padding: 16px;
  }

  body.print-clean .result .headline {
    font-size: 1.1rem;
    margin-bottom: 8px;
  }

  body.print-clean .result .big {
    font-size: 2.3rem;
    margin-bottom: 8px;
  }

  body.print-clean .result .work,
  body.print-clean .result .dose-count,
  body.print-clean .result .timestamp {
    display: none;
  }

  .syringe-visual {
    border-color: #777;
    background: #fff;
  }

  .syringe-title,
  .syringe-meta,
  .tick-label,
  .result .headline,
  .result .big-sub,
  .result .work-title,
  .result .work-line,
  .result .timestamp {
    color: #111;
  }

  .result .big,
  .dose-count strong {
    color: #000;
  }

  .syringe-bar {
    border: 1px solid #333;
    background: #fff;
  }

  .syringe-fill {
    background: #9c9c9c;
    box-shadow: none;
    border-right: 2px solid #000;
  }

  .tick-line-top,
  .tick.major .tick-line-top,
  .tick.minor .tick-line-top {
    background: #111;
  }
}