/* Retadose — Neo-brutalist design system */

/* ── Custom properties ── */
:root {
  --bg:         #FFFFFF;
  --bg-alt:     #F0FFF4;
  --green:      #22C55E;
  --green-dark: #16A34A;
  --blue:       #3B82F6;
  --blue-dark:  #2563EB;
  --black:      #000000;
  --white:      #FFFFFF;
  --gray-100:   #F5F5F5;
  --gray-400:   #9CA3AF;
  --red:        #EF4444;
  --red-dark:   #DC2626;
  --yellow:     #FCD34D;
  --shadow:     4px 4px 0 var(--black);
  --shadow-sm:  3px 3px 0 var(--black);
}

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

/* ── Body ── */
body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  max-width: 880px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
  color: var(--black);
  background: var(--bg);
  line-height: 1.5;
}

/* ── Typography ── */
h1, h2, h3, h4 { font-family: "Space Grotesk", "Inter", sans-serif; }
h1 { font-size: 2.2rem; font-weight: 800; letter-spacing: -0.03em; margin: 0 0 0.5rem; }
h2 { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 1rem; }
h3 { font-size: 1.15rem; font-weight: 600; margin: 0 0 0.75rem; }
h4 { font-size: 1rem; font-weight: 600; margin: 0 0 0.5rem; }

/* ── Navigation ── */
nav {
  display: flex;
  gap: 0.35rem;
  padding: 0.75rem 0;
  border-bottom: 3px solid var(--black);
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
  align-items: center;
}

nav .site-name {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  margin-right: 0.75rem;
  color: var(--black);
  text-decoration: none;
}

nav a {
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.65rem;
  color: var(--black);
  text-decoration: none;
  border: 2px solid transparent;
}
nav a:hover { border-color: var(--black); }
nav a[aria-current="page"] {
  background: var(--green);
  color: var(--white);
  border: 2px solid var(--black);
}

/* ── Cards ── */
.card {
  background: var(--white);
  border: 3px solid var(--black);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-dark {
  background: #1F2937;
  border: 3px solid var(--black);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--white);
}

section { margin-bottom: 0; }

/* ── Inputs ── */
label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
}

input[type=text],
input[type=email],
input[type=password],
input[type=number],
input[type=date],
input[type=time],
input[type=datetime-local],
select, textarea {
  display: block;
  width: 100%;
  max-width: 400px;
  margin-top: 0.3rem;
  padding: 0.5rem 0.75rem;
  border: 2px solid var(--black);
  font-size: 0.95rem;
  background: var(--white);
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: 3px solid var(--blue);
  outline-offset: 1px;
}

textarea { resize: vertical; min-height: 80px; }

/* ── Buttons ── */
button, .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.2rem;
  background: var(--blue);
  color: var(--white);
  border: 2px solid var(--black);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: inherit;
  text-decoration: none;
  transition: transform 60ms, box-shadow 60ms;
}
button:hover, .btn:hover {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 var(--black);
}
button:active, .btn:active {
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 var(--black);
}
button.btn-primary { background: var(--green); }
button.btn-primary:hover { background: var(--green-dark); }
button.btn-accent  { background: var(--blue); }
button.btn-accent:hover { background: var(--blue-dark); }
button.btn-outline {
  background: var(--white);
  color: var(--black);
}
button.btn-full { width: 100%; justify-content: center; font-size: 1rem; padding: 0.75rem; }
button.danger-btn, button.btn-danger { background: var(--red); }
button.danger-btn:hover, button.btn-danger:hover { background: var(--red-dark); }

/* ── Auth layout ── */
.auth-container {
  max-width: 420px;
  margin: 3rem auto;
}
.auth-container h1 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--green);
  border-bottom: 4px solid var(--black);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
}
.auth-container h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

/* ── Badge ── */
.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  background: var(--green);
  color: var(--white);
  border: 2px solid var(--black);
  box-shadow: 2px 2px 0 var(--black);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  vertical-align: middle;
}

/* ── Alerts ── */
.error { color: var(--red); font-weight: 700; }
.notice {
  background: var(--bg-alt);
  border: 2px solid var(--green);
  box-shadow: 3px 3px 0 var(--green);
  padding: 0.75rem 1rem;
  font-weight: 500;
  margin-bottom: 1rem;
}
.flash { background: var(--bg-alt); border: 2px solid var(--green); padding: 0.75rem; }

/* ── Flags ── */
#flags-banner .flag {
  background: var(--yellow);
  border: 2px solid var(--black);
  box-shadow: var(--shadow-sm);
  padding: 0.75rem 1rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
#flags-banner .flag p { margin: 0; flex: 1; }

/* ── Push nudge ── */
.push-nudge {
  background: var(--yellow);
  border: 2px solid var(--black);
  box-shadow: var(--shadow-sm);
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.push-nudge p { margin: 0; flex: 1; font-weight: 500; }

/* ── Onboarding ── */
.onboarding {
  background: var(--bg-alt);
  border: 3px solid var(--black);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}
.onboarding ol { padding-left: 1.25rem; }
.onboarding li { margin-bottom: 0.5rem; }

/* ── Tables ── */
table { width: 100%; border-collapse: collapse; border: 2px solid var(--black); }

/* ── Table wrapper: horizontal scroll on mobile ── */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.table-wrap td,
.table-wrap th { white-space: nowrap; }
th {
  background: var(--black);
  color: var(--white);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 0.6rem 0.75rem;
  text-align: left;
}
td { padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--black); }
tr:last-child td { border-bottom: none; }

/* ── Vial rows ── */
.vial-row {
  padding: 0.75rem;
  border-bottom: 2px solid var(--black);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.vial-row:last-child { border-bottom: none; }
.vial-row.active { background: var(--bg-alt); }

/* ── Check-in questions ── */
.question { margin-bottom: 1.25rem; }

/* ── Autosave indicator ── */
#autosave-indicator {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--green);
  margin-top: 0.5rem;
}

/* ── Syringe visualizer ── */
.syringe-section { }
#syringe-svg { width: 100%; max-width: 480px; }
.syringe-draw-text {
  font-size: 1rem;
  font-weight: 700;
  color: var(--green);
  margin-top: 0.5rem;
}
.syringe-size-selector {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

/* ── Slider ── */
input[type=range] {
  width: 100%;
  max-width: 420px;
  accent-color: var(--green);
  cursor: pointer;
}

/* ── Dose slider row ── */
.slider-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.slider-row label { margin-bottom: 0; }

/* ── Calibration indicators ── */
.calibration-indicator {
  background: var(--bg-alt);
  border: 2px solid var(--black);
  padding: 0.6rem 0.75rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}
.calibration-population { background: var(--gray-100); }

/* ── Pre-fill banner ── */
.prefill-banner {
  background: var(--bg-alt);
  border: 2px solid var(--green);
  box-shadow: 3px 3px 0 var(--green);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

/* ── Calibration info in dose form ── */
.calibration-info {
  background: var(--bg-alt);
  border: 2px solid var(--black);
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

/* ── Simulator ── */
.calibration-note { font-size: 0.85rem; margin-top: 0.75rem; }

/* ── Admin stats row ── */
.admin-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card { text-align: center; padding: 1.25rem 1rem; }
.stat-value { font-family: "Space Grotesk", sans-serif; font-size: 2.5rem; font-weight: 800; line-height: 1; }
.stat-label { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-top: 0.35rem; color: var(--gray-400); }
.banned-row td { background: #FFF1F1; }

/* ── Mobile responsive (≤640px) ── */
@media (max-width: 640px) {
  body { padding: 0.75rem 0.5rem; font-size: 16px; }
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.35rem; }
  nav { gap: 0.2rem; padding: 0.5rem 0 0.75rem; }
  nav .site-name { font-size: 0.95rem; margin-right: 0.5rem; }
  nav a { min-height: 40px; padding: 0.3rem 0.5rem; font-size: 0.65rem; display: inline-flex; align-items: center; }
  input, select, textarea { width: 100%; font-size: 16px; min-height: 44px; max-width: 100%; }
  button, .btn { min-height: 44px; }
  button[type=submit], button.btn-full { width: 100%; min-height: 48px; font-size: 1rem; }
  .card { padding: 1rem; }
  .card-dark { padding: 1rem; }
  #pk-chart-container { height: 200px; }
  #syringe-svg { max-width: 100%; height: auto; }
  #trends-container { padding: 0; }
  .slider-row { flex-direction: column; align-items: flex-start; }
  .syringe-size-selector button { flex: 1; justify-content: center; }
  .admin-stats { grid-template-columns: repeat(2, 1fr); }
}