/* ============================================================

   GlucoSentry  –  style.css

   ============================================================ */

:root {

  --bg:        #07111a;
  --surface:   #0b1c2c;
  --border:    #1e3a52;
  --border2:   #0f2336;
  --text:      #d4e8f5;
  --text2:     #7eaecb;
  --text3:     #3b6e8f;
  --accent:    #0ea5e9;
  --accent2:   #1d4ed8;
  --green:     #22c55e;
  --amber:     #f59e0b;
  --red:       #ef4444;
  --purple:    #8b5cf6;
  --radius:    10px;
  --radius-lg: 16px;
  --font:      'DM Sans', sans-serif;
  --mono:      'DM Mono', monospace;

}

/* ── Light mode overrides ────────────────────────────────── */

[data-theme="light"] {

  --bg:      #f0f6fc;
  --surface: #ffffff;
  --border:  #c9dcea;
  --border2: #e2edf5;
  --text:    #0c2d48;
  --text2:   #2c6e96;
  --text3:   #6a9bb8;
  --accent:  #0284c7;
  --accent2: #1d4ed8;
}


/* ── Theme toggle button ─────────────────────────────────── */

.theme-toggle {

  background: none;
  border: 1px solid var(--border);
  color: var(--text2);
  font-size: 16px;
  cursor: pointer;
  padding: 5px 10px;
  border-radius: 8px;
  transition: all 0.15s;
  line-height: 1;
}

.theme-toggle:hover {

  background: var(--border2);
  color: var(--text);
  border-color: var(--accent);

}

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

html, body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }

/* ── Layout ─────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  gap: 14px;
  height: 56px;
  padding: 0 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.app-layout {
  display: flex;
  height: calc(100vh - 56px);
  overflow: hidden;
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transition: width 0.2s;
}
.sidebar.collapsed { width: 0; overflow: hidden; }
.sidebar-section-label {
  font-size: 10px;
  font-family: var(--mono);
  color: var(--text3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 16px 16px 6px;
}
.patient-list { display: flex; flex-direction: column; }
.patient-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-left: 3px solid transparent;
  color: var(--text2);
  transition: all 0.15s;
  text-decoration: none;
}
.patient-item:hover { background: #0f2336; color: var(--text); }
.patient-item.active {
  background: #102a42;
  border-left-color: var(--accent);
  color: var(--text);
}
.patient-item-info { flex: 1; min-width: 0; }
.patient-item-name { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.patient-item-meta { font-size: 11px; color: var(--text3); margin-top: 2px; }
.badge-glucose { font-family: var(--mono); font-size: 12px; font-weight: 600; flex-shrink: 0; }
.sidebar-empty { padding: 14px 16px; font-size: 12px; color: var(--text3); }
.sidebar-admin-links { display: flex; flex-direction: column; gap: 2px; padding: 8px; }
.sidebar-admin-links a {
  font-size: 12px;
  color: var(--text2);
  padding: 6px 10px;
  border-radius: 6px;
}
.sidebar-admin-links a:hover { background: var(--border2); color: var(--text); }

/* ── Header components ───────────────────────────────────── */
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.logo-icon { font-size: 20px; }
.logo-text { font-size: 16px; font-weight: 600; letter-spacing: -0.02em; }
.logo-version { font-size: 11px; color: var(--text3); font-family: var(--mono); }
.header-spacer { flex: 1; }
.header-user { display: flex; align-items: center; gap: 12px; }
.header-user-info { text-align: right; }
.hdr-name { display: block; font-size: 13px; font-weight: 500; }
.hdr-role { display: block; font-size: 11px; color: var(--text3); }
.avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600;
}
.sidebar-toggle {
  background: none;
  border: none;
  color: var(--text2);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
}
.sidebar-toggle:hover { background: var(--border2); }

/* ── Main content ────────────────────────────────────────── */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
}

/* ── Patient header ──────────────────────────────────────── */
.patient-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}
.patient-name { font-size: 24px; font-weight: 600; letter-spacing: -0.03em; color: #e8f4ff; }
.patient-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
  font-size: 12px;
  color: var(--text3);
  align-items: center;
}
.patient-actions { display: flex; gap: 10px; flex-shrink: 0; }

/* ── Stat cards ──────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}
@media (max-width: 900px) { .stat-grid { grid-template-columns: repeat(2,1fr); } }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top-width: 3px;
  border-radius: var(--radius-lg);
  padding: 16px 18px;
}
.stat-label { font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px; }
.stat-value { font-size: 26px; font-weight: 600; line-height: 1; }
.stat-value.mono { font-family: var(--mono); }
.stat-sub { font-size: 11px; color: var(--text2); margin-top: 4px; }

/* ── Range bar ───────────────────────────────────────────── */
.range-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 20px;
}
.range-label { font-size: 12px; color: var(--text3); margin-right: 4px; }
.range-btn {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  color: var(--text2);
  border: 1px solid var(--border);
  background: none;
  transition: all 0.15s;
}
.range-btn:hover { background: var(--border2); color: var(--text); }
.range-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ── Tabs ────────────────────────────────────────────────── */
.tab-bar {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  gap: 0;
}
.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text3);
  padding: 10px 20px;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font);
  transition: all 0.15s;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text2); }
.tab-btn.active { border-bottom-color: var(--accent); color: var(--accent); font-weight: 600; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Card ────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }
.card-title { font-size: 16px; font-weight: 600; color: #e8f4ff; }
.card-sub { font-size: 12px; color: var(--text3); margin-top: 4px; }

/* ── Chart ───────────────────────────────────────────────── */
.chart-wrap { height: 320px; position: relative; }
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 16px;
  margin-top: 12px;
  border-top: 1px solid var(--border);
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text3);
}
.legend-item::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--c);
  flex-shrink: 0;
}

/* ── Log list ────────────────────────────────────────────── */
.log-list { display: flex; flex-direction: column; gap: 10px; }
.log-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
}
.log-icon {
  width: 50px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 20px;
}
.dose-icon { background: linear-gradient(135deg, #0f2d4a, var(--border)); }
.reading-icon { font-size: 15px; font-weight: 700; border: 1px solid; }
.log-body { flex: 1; min-width: 0; }
.log-title { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-weight: 600; color: #e8f4ff; font-size: 15px; margin-bottom: 4px; }
.log-notes { font-size: 12px; color: var(--text3); }
.log-meta { text-align: right; flex-shrink: 0; }
.log-time { font-size: 12px; color: var(--text2); }
.log-by { font-size: 11px; color: var(--text3); margin-top: 3px; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius);
  font-size: 13px;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
  font-weight: 600;
}
.btn-primary:hover { opacity: 0.9; }
.btn-green {
  background: linear-gradient(135deg, var(--green), #15803d);
  color: #fff;
  border: none;
  font-weight: 600;
}
.btn-secondary {
  background: var(--border2);
  border-color: var(--border);
  color: var(--text2);
}
.btn-secondary:hover { background: var(--border); color: var(--text); }
.btn-ghost {
  background: none;
  border: none;
  color: var(--text2);
}
.btn-ghost:hover { color: var(--text); }
.btn-danger {
  background: #7f1d1d;
  border-color: #ef4444;
  color: #fca5a5;
}
.btn-danger:hover { background: #991b1b; }
.btn-block { width: 100%; }
.btn-sm { padding: 4px 12px; font-size: 12px; border-radius: 6px; }

/* ── Pills / badges ──────────────────────────────────────── */
.pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
  background: var(--border);
  color: var(--text2);
}
.pill-blue { background: #0f2d4a; color: var(--accent); }
.pill-dark { background: var(--border2); color: var(--text3); }
.mono-tag { font-family: var(--mono); font-size: 11px; color: var(--text3); }

/* ── Forms ───────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text3); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
.optional { text-transform: none; font-size: 10px; opacity: 0.7; }
input, select, textarea {
  width: 100%;
  background: var(--border2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 12px;
  border-radius: var(--radius);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; }

/* Radio toggle button group */
.btn-group { display: flex; gap: 8px; }
.btn-toggle { flex: 1; }
.btn-toggle input[type=radio] { display: none; }
.btn-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7px 4px;
  background: var(--border2);
  border: 1px solid var(--border);
  color: var(--text2);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.15s;
}
.btn-toggle:has(input:checked) { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Glucose preview */
.glucose-preview { font-size: 12px; font-weight: 500; margin-top: 4px; }

/* ── Modals ──────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  width: 480px;
  max-width: calc(100vw - 32px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.modal-header { display: flex; align-items: center; justify-content: space-between; }
.modal-header h2 { font-size: 18px; font-weight: 600; color: #e8f4ff; }
.modal-close { background: none; border: none; color: var(--text3); font-size: 18px; cursor: pointer; padding: 4px; }
.modal-close:hover { color: var(--text); }
.modal-actions { display: flex; gap: 10px; margin-top: 6px; }
.modal-actions .btn-secondary { flex: 1; }
.modal-actions .btn-primary, .modal-actions .btn-green { flex: 2; }

/* ── Alerts ──────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 16px;
}
.alert-error { background: #7f1d1d44; border: 1px solid #ef444444; color: #fca5a5; }
.alert-warn  { background: #78350f44; border: 1px solid #f59e0b44; color: #fcd34d; }
.alert-info  { background: #0c4a6e44; border: 1px solid #0ea5e944; color: #7dd3fc; }

/* ── Login ───────────────────────────────────────────────── */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-wrap { width: 100%; max-width: 400px; padding: 20px; }
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.login-logo { display: flex; align-items: center; gap: 12px; justify-content: center; }
.login-logo .logo-icon { font-size: 28px; }
.login-logo .logo-text { font-size: 22px; font-weight: 600; letter-spacing: -0.02em; }
.login-sub { text-align: center; color: var(--text3); font-size: 13px; margin-top: -8px; }
.login-hint { font-size: 11px; color: var(--text3); text-align: center; line-height: 1.7; }
.login-hint code { font-family: var(--mono); background: var(--border2); padding: 1px 5px; border-radius: 4px; }

/* ── Empty states ────────────────────────────────────────── */
.empty-state { text-align: center; padding: 64px 20px; color: var(--text3); }
.empty-icon { font-size: 40px; margin-bottom: 12px; }

/* ── Admin ───────────────────────────────────────────────── */
.admin-wrap { max-width: 1100px; margin: 0 auto; padding: 32px 24px; }
.admin-title { font-size: 22px; font-weight: 600; color: #e8f4ff; margin-bottom: 24px; }
.admin-form { display: flex; flex-direction: column; gap: 16px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.admin-table th { text-align: left; padding: 10px 12px; font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text3); border-bottom: 1px solid var(--border); }
.admin-table td { padding: 12px; border-bottom: 1px solid var(--border2); vertical-align: middle; }
.admin-table tr:hover td { background: var(--border2); }
.row-inactive td { opacity: 0.45; }
.badge-revoke {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #1e3a52;
  border: none;
  color: var(--text2);
  border-radius: 20px;
  padding: 2px 8px;
  font-size: 11px;
  cursor: pointer;
  margin: 2px 2px 2px 0;
}
.badge-revoke:hover { background: #7f1d1d; color: #fca5a5; }

/* ── Light mode element overrides ───────────────────────── */

[data-theme="light"] body { background: var(--bg); }

[data-theme="light"] .patient-item:hover { background: #e2edf5; }

[data-theme="light"] .patient-item.active { background: #d0e8f5; }

[data-theme="light"] .patient-name { color: #0c2d48; }

[data-theme="light"] .stat-card { background: var(--surface); border-color: var(--border); }

[data-theme="light"] .card { background: var(--surface); border-color: var(--border); }

[data-theme="light"] .modal-backdrop { background: rgba(0,0,0,0.4); }

[data-theme="light"] .modal { background: var(--surface); border-color: var(--border); }

[data-theme="light"] .form-group input,

[data-theme="light"] .form-group select,

[data-theme="light"] .form-group textarea {

  background: #f0f6fc;

  border-color: var(--border);

  color: var(--text);

}

[data-theme="light"] .tab-btn { color: var(--text2); }

[data-theme="light"] .tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

[data-theme="light"] .log-item { background: var(--surface); border-color: var(--border); }
[data-theme="light"] .admin-table th { background: #e2edf5; color: var(--text2); }
[data-theme="light"] .admin-table td { border-color: var(--border); }
[data-theme="light"] .sidebar { background: var(--surface); border-color: var(--border); }
[data-theme="light"] .app-header { background: var(--surface); border-color: var(--border); }
[data-theme="light"] .btn-ghost { color: var(--text2); }
[data-theme="light"] .btn-ghost:hover { background: var(--border2); color: var(--text); }
[data-theme="light"] .sidebar-admin-links a:hover { background: var(--border2); }
[data-theme="light"] .pill { background: #d0e8f5; color: var(--text2); }