:root {
  --bg: #f3f0e8;
  --bg-accent: #e4efe8;
  --ink: #1c2a24;
  --muted: #5a6b63;
  --card: rgba(255, 252, 246, 0.92);
  --line: #c9d5ce;
  --brand: #0f6b5c;
  --brand-dark: #0a4d42;
  --warn: #a35b12;
  --danger: #9b2c2c;
  --ok: #1f7a4c;
  --shadow: 0 12px 40px rgba(28, 42, 36, 0.08);
  --radius: 18px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at 12% 10%, #d7ebe3 0%, transparent 42%),
    radial-gradient(circle at 88% 0%, #f2e2c9 0%, transparent 36%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-accent) 100%);
}

body {
  line-height: 1.45;
}

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

img {
  max-width: 100%;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  background: rgba(255, 252, 246, 0.75);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--brand-dark);
  text-decoration: none;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
}

.nav a.active,
.nav a:hover {
  color: var(--brand-dark);
  background: rgba(15, 107, 92, 0.1);
}

main {
  width: min(1120px, calc(100% - 2rem));
  margin: 1.25rem auto 2.5rem;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--brand-dark);
  margin: 0 0 0.5rem;
}

.lede {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 38rem;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.2rem;
  margin-bottom: 1rem;
}

.panel h2,
.panel h3 {
  font-family: var(--font-display);
  margin: 0 0 0.75rem;
}

.grid-2 {
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
  .desktop-split {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 1rem;
  }
}

.stack {
  display: grid;
  gap: 0.75rem;
}

label {
  display: grid;
  gap: 0.3rem;
  font-weight: 600;
  font-size: 0.92rem;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem 0.8rem;
  background: #fff;
  color: var(--ink);
}

textarea {
  min-height: 88px;
  resize: vertical;
}

button,
.button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 0.7rem 1.05rem;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
}

button.secondary,
.button.secondary {
  background: transparent;
  color: var(--brand-dark);
  border: 1px solid var(--line);
}

button.danger {
  background: var(--danger);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.dose-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  background: #fff;
  display: grid;
  gap: 0.55rem;
}

.dose-card .meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(15, 107, 92, 0.12);
  color: var(--brand-dark);
}

.badge.warn {
  background: rgba(163, 91, 18, 0.15);
  color: var(--warn);
}

.badge.danger {
  background: rgba(155, 44, 44, 0.12);
  color: var(--danger);
}

.badge.ok {
  background: rgba(31, 122, 76, 0.12);
  color: var(--ok);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 252, 246, 0.7);
  font-size: 0.88rem;
  cursor: pointer;
}

.chip:has(input:checked) {
  border-color: var(--brand);
  background: rgba(15, 107, 92, 0.12);
  color: var(--brand-dark);
}

.chip input {
  width: auto;
  margin: 0;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 0.55rem 0.4rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.flash {
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  margin-bottom: 1rem;
}

.flash.error {
  background: rgba(155, 44, 44, 0.1);
  color: var(--danger);
}

.flash.ok {
  background: rgba(31, 122, 76, 0.1);
  color: var(--ok);
}

.flash.warn {
  background: rgba(163, 91, 18, 0.12);
  color: var(--warn);
}

.empty {
  color: var(--muted);
  padding: 1rem 0;
}

.auth-card {
  width: min(460px, 100%);
  margin: 2rem auto;
}

.footer {
  padding: 1rem 1.25rem 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.mobile-cards {
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 900px) {
  .mobile-only {
    display: none;
  }
}

@media (max-width: 899px) {
  .desktop-only {
    display: none;
  }
  .nav {
    display: none;
  }
  .topbar {
    position: sticky;
  }
  .bottom-nav {
    position: sticky;
    bottom: 0;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.25rem;
    padding: 0.55rem 0.5rem calc(0.55rem + env(safe-area-inset-bottom));
    background: rgba(255, 252, 246, 0.95);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(10px);
  }
  .bottom-nav a {
    text-align: center;
    text-decoration: none;
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.35rem 0.2rem;
  }
  .bottom-nav a.active {
    color: var(--brand-dark);
  }
}

@media (min-width: 900px) {
  .bottom-nav {
    display: none;
  }
}

.chart-box {
  position: relative;
  height: 280px;
}

.muted {
  color: var(--muted);
}

.hidden {
  display: none !important;
}