:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #eef4ff;
  --text: #172033;
  --muted: #677085;
  --primary: #315bd6;
  --primary-strong: #2448b3;
  --success: #177245;
  --success-soft: #e9f8f0;
  --warning: #a45f00;
  --warning-soft: #fff5df;
  --danger: #b42318;
  --border: #dce3ef;
  --shadow: 0 18px 50px rgba(36, 53, 92, 0.09);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #edf3ff 0, var(--bg) 38rem);
  color: var(--text);
}
button, input { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }

.shell {
  width: min(720px, calc(100% - 28px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -0.02em; }
.brand-mark {
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 14px; background: var(--primary); color: white; font-size: 22px;
  box-shadow: 0 10px 25px rgba(49, 91, 214, .25);
}
.link-button {
  border: 1px solid var(--border); background: rgba(255,255,255,.8); color: var(--muted);
  padding: 9px 12px; border-radius: 12px; text-decoration: none; font-size: 14px;
}

.hero { margin-bottom: 18px; }
.hero h1 { margin: 0 0 8px; font-size: clamp(28px, 7vw, 40px); line-height: 1.05; letter-spacing: -0.035em; }
.hero p { margin: 0; color: var(--muted); line-height: 1.5; }

.grid { display: grid; gap: 14px; }
.dose-card, .panel {
  background: var(--surface);
  border: 1px solid rgba(220, 227, 239, .85);
  border-radius: 22px;
  box-shadow: var(--shadow);
}
.dose-card { padding: 20px; }
.dose-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.dose-title { display: flex; gap: 12px; align-items: center; }
.dose-icon { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--surface-soft); font-size: 24px; }
.dose-title h2 { margin: 0 0 3px; font-size: 19px; }
.dose-time { color: var(--muted); font-size: 14px; }
.status { border-radius: 999px; padding: 7px 10px; font-size: 12px; font-weight: 700; white-space: nowrap; background: #edf1f7; color: var(--muted); }
.status.done { background: var(--success-soft); color: var(--success); }

.primary {
  width: 100%; border: 0; border-radius: 16px; background: var(--primary); color: white;
  padding: 17px 18px; font-weight: 800; font-size: 17px; box-shadow: 0 11px 24px rgba(49,91,214,.2);
}
.primary:hover { background: var(--primary-strong); }
.primary:disabled { background: #aeb8cc; cursor: not-allowed; box-shadow: none; }
.secondary {
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  padding: 11px 14px; border-radius: 12px; font-weight: 700;
}
.danger { color: var(--danger); }

.panel { margin-top: 18px; padding: 20px; }
.panel h2 { margin: 0 0 14px; font-size: 18px; }
.history { display: grid; gap: 8px; }
.history-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid #eef1f5; }
.history-row:last-child { border-bottom: 0; }
.history-main { font-weight: 700; }
.history-meta { color: var(--muted); font-size: 13px; margin-top: 3px; }
.empty { color: var(--muted); padding: 10px 0; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px);
  width: min(520px, calc(100% - 28px)); padding: 14px 16px; border-radius: 14px;
  color: white; background: #1c2639; opacity: 0; pointer-events: none; transition: .2s ease;
  box-shadow: 0 16px 40px rgba(0,0,0,.22); z-index: 20;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: #8f231c; }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(16,24,40,.45); display: none; align-items: end; justify-content: center;
  padding: 16px; z-index: 10; backdrop-filter: blur(4px);
}
.modal-backdrop.open { display: flex; }
.modal { width: min(520px, 100%); background: white; border-radius: 24px; padding: 22px; box-shadow: 0 30px 80px rgba(0,0,0,.28); }
.modal h2 { margin: 0 0 8px; }
.modal p { color: var(--muted); line-height: 1.45; }
.modal-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 20px; }

.form { display: grid; gap: 14px; }
.field { display: grid; gap: 7px; }
.field label { font-size: 13px; font-weight: 800; color: #39445a; }
.field input {
  width: 100%; border: 1px solid var(--border); border-radius: 12px; background: white;
  padding: 12px 13px; outline: none; color: var(--text);
}
.field input:focus { border-color: #7996ed; box-shadow: 0 0 0 3px rgba(49,91,214,.11); }
.help { color: var(--muted); font-size: 12px; line-height: 1.4; }
.row { display: flex; gap: 10px; flex-wrap: wrap; }
.row > * { flex: 1 1 150px; }
.notice { padding: 13px 14px; border-radius: 14px; background: var(--warning-soft); color: var(--warning); font-size: 13px; line-height: 1.45; }
.notice.good { background: var(--success-soft); color: var(--success); }
.chat-list { display: grid; gap: 8px; margin-top: 10px; }
.chat-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 12px; }
.chat-item input { width: 18px; height: 18px; }

.pin-gate { max-width: 420px; margin: 8vh auto 0; }
.pin-gate .panel { padding: 24px; }
.pin-gate h1 { margin: 0 0 8px; }
.hidden { display: none !important; }

.pillbox-summary { background: linear-gradient(145deg, #fff, #f2f6ff); }
.pillbox-label { color: var(--muted); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; }
.pillbox-name { margin: 6px 0 5px; font-size: 22px; font-weight: 850; letter-spacing: -.02em; }
.dose-prescription { margin: -4px 0 18px; padding: 11px 13px; border-radius: 13px; background: var(--surface-soft); font-weight: 800; }

.stats-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.stat-card { border: 1px solid var(--border); border-radius: 16px; padding: 14px; background: #fbfcff; }
.stat-value { margin: 4px 0; font-size: 28px; line-height: 1; font-weight: 850; letter-spacing: -.04em; }
.section-title { margin: 20px 0 6px; font-size: 15px; }
.stats-row .history-meta { line-height: 1.5; }

.reminder-box { border: 1px solid var(--border); border-radius: 16px; padding: 14px; background: #fbfcff; }
.toggle-row { display: flex; align-items: flex-start; gap: 11px; cursor: pointer; }
.toggle-row input { width: 20px; height: 20px; margin: 1px 0 0; accent-color: var(--primary); flex: 0 0 auto; }
.toggle-row span { display: grid; gap: 3px; }
.reminder-fields { margin-top: 14px; transition: opacity .2s ease; }
.disabled-fields { opacity: .45; }

.chart-shell { display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 8px; margin-top: 12px; }
.chart-y-axis { height: 190px; display: flex; flex-direction: column; justify-content: space-between; align-items: flex-end; padding: 0 0 26px; color: var(--muted); font-size: 10px; }
.adherence-chart { min-height: 190px; display: flex; align-items: flex-end; gap: 5px; overflow-x: auto; padding: 0 2px 4px; border-bottom: 1px solid var(--border); background: linear-gradient(to bottom, transparent 0, transparent 49.7%, #eef1f6 50%, transparent 50.3%, transparent 100%); }
.chart-day { min-width: 14px; flex: 1 0 14px; height: 186px; display: grid; grid-template-rows: 156px 26px; gap: 4px; align-items: end; }
.chart-bar { height: 156px; display: flex; flex-direction: column; justify-content: flex-end; border-radius: 5px; overflow: hidden; background: #f1f3f7; border: 1px solid #e7ebf1; }
.chart-segment { height: 50%; min-height: 2px; }
.chart-segment.done { background: var(--success); }
.chart-segment.missed { background: #d9766b; }
.chart-segment.future { background: #e8ebf1; }
.chart-label { min-height: 18px; font-size: 8px; color: var(--muted); writing-mode: vertical-rl; transform: rotate(180deg); text-align: center; justify-self: center; }
.chart-legend { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 10px; color: var(--muted); font-size: 11px; }
.chart-legend span { display: inline-flex; align-items: center; gap: 5px; }
.legend-dot { width: 9px; height: 9px; border-radius: 3px; display: inline-block; }
.legend-dot.done { background: var(--success); }
.legend-dot.missed { background: #d9766b; }
.legend-dot.future { background: #e8ebf1; border: 1px solid #d8dde6; }

@media (min-width: 650px) {
  .dose-grid { grid-template-columns: 1fr 1fr; }
  .dose-card { min-height: 260px; display: flex; flex-direction: column; }
  .dose-card .primary { margin-top: auto; }
  .stats-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .chart-day { min-width: 16px; flex-basis: 16px; }
}