/* ── Default Theme ── */
:root {
  --bg: #f0f4f8;
  --surface: #ffffff;
  --primary: #4a9eff;
  --primary-dark: #2d7dd2;
  --text: #1a202c;
  --text-muted: #718096;
  --border: #e2e8f0;
  --danger: #e53e3e;
  --success: #38a169;
  --radius: 12px;
  --font: 'Segoe UI', system-ui, sans-serif;
  --header-bg: #1a202c;
  --header-text: #ffffff;
  --nav-active: #4a9eff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font); background: var(--bg); color: var(--text); min-height: 100vh; }

.app { max-width: 980px; margin: 0 auto; padding: 0 16px 6px; }

header { background: var(--header-bg); color: var(--header-text); padding: 16px 24px; margin: 0 -16px 24px; }
.app-title { font-size: 1.35rem; font-weight: 700; margin-bottom: 12px; letter-spacing: 0.01em; }
nav { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.nav-btn { background: transparent; border: 1.5px solid rgba(255,255,255,0.3); color: #fff; padding: 6px 18px; border-radius: 20px; cursor: pointer; font-size: 0.88rem; transition: all 0.2s; }
.nav-btn:hover, .nav-btn.active { background: var(--nav-active); border-color: var(--nav-active); }
.lang-btn { background: rgba(255,255,255,0.12); border: 1.5px solid rgba(255,255,255,0.35); color: #fff; padding: 6px 14px; border-radius: 20px; cursor: pointer; font-size: 0.88rem; transition: all 0.2s; margin-left: auto; }
.lang-btn:hover { background: rgba(255,255,255,0.25); }
.screenshot-btn { padding: 6px 10px; display: inline-flex; align-items: center; justify-content: center; margin-left: 0; }

.page { display: none; flex-direction: column; gap: 20px; }
.page.active { display: flex; }

.card { background: var(--surface); border-radius: var(--radius); padding: 22px; box-shadow: 0 2px 8px rgba(0,0,0,0.07); }
.card h2 { font-size: 1.05rem; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.card-header h2 { margin-bottom: 0; }

/* Chart */
.chart-wrap { position: relative; height: 460px; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; padding: 14px 0 2px; }
.legend-pill { display: inline-flex; align-items: center; gap: 6px; padding: 5px 14px; border-radius: 20px; border: 2px solid; cursor: pointer; font-size: 0.83rem; font-weight: 600; font-family: var(--font); transition: opacity 0.2s, background 0.2s; }
.legend-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.legend-hidden { opacity: 0.32; }

/* Member grid (Latest Readings) */
.member-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(175px, 1fr)); gap: 14px; }
.member-card { background: var(--bg); border-radius: var(--radius); padding: 14px 16px; }
.member-name { font-weight: 700; font-size: 0.97rem; margin-bottom: 4px; }
.member-meta { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 10px; }
.stat-row { display: flex; justify-content: space-between; font-size: 0.83rem; padding: 3px 0; color: var(--text-muted); }
.stat-row strong { color: var(--text); font-weight: 600; }
.stat-date { font-size: 0.74rem; color: var(--text-muted); margin-top: 8px; border-top: 1px solid var(--border); padding-top: 6px; }

/* Form */
.form-group { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.form-group label { font-size: 0.83rem; font-weight: 600; color: var(--text-muted); letter-spacing: 0.01em; }
.form-group input, .form-group select, .form-group textarea {
  border: 1.5px solid var(--border); border-radius: 8px; padding: 9px 12px;
  font-size: 0.93rem; font-family: var(--font); color: var(--text);
  background: var(--surface); transition: border 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* Buttons */
.btn-primary { background: var(--primary); color: #fff; border: none; padding: 10px 24px; border-radius: 8px; cursor: pointer; font-size: 0.93rem; font-weight: 600; transition: background 0.2s; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-del   { background: none; border: none; color: var(--danger); cursor: pointer; font-size: 0.95rem; padding: 3px 7px; border-radius: 5px; transition: background 0.18s; }
.btn-del:hover   { background: #fee2e2; }
.btn-edit  { background: none; border: none; color: var(--primary); cursor: pointer; font-size: 0.95rem; padding: 3px 7px; border-radius: 5px; transition: background 0.18s; }
.btn-edit:hover  { background: #dbeafe; }
.btn-save  { background: none; border: none; color: #16a34a; cursor: pointer; font-size: 0.95rem; padding: 3px 7px; border-radius: 5px; transition: background 0.18s; }
.btn-save:hover  { background: #dcfce7; }
.btn-order { background: none; border: 1px solid var(--border); color: var(--text-muted); cursor: pointer; font-size: 0.8rem; padding: 2px 6px; border-radius: 4px; transition: background 0.18s; }
.btn-order:hover:not(:disabled) { background: var(--border); color: var(--text); }
.btn-order:disabled { opacity: 0.25; cursor: default; }

.edit-row input, .edit-row select { font-size: 0.88rem; border: 1px solid var(--border); border-radius: 5px; padding: 2px 5px; background: var(--surface); color: var(--text); }
input[type="number"] { padding-right: 4px; }

/* Table */
#records-table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
th { text-align: left; padding: 8px 10px; border-bottom: 2px solid var(--border); color: var(--text-muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
td { padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }

/* Dot */
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }

/* Controls */
.controls select, #records-filter {
  border: 1.5px solid var(--border); border-radius: 8px; padding: 5px 10px;
  font-size: 0.84rem; background: var(--surface); color: var(--text); font-family: var(--font);
}

/* ── Settings: Family Members ── */
.members-list-wrap { display: flex; flex-direction: column; gap: 8px; }
.member-row {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg); border-radius: 10px; padding: 10px 14px;
  border-left: 4px solid var(--mc, var(--border));
  transition: box-shadow 0.15s;
}
.member-row:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.07); }
.member-row-info { flex: 1; min-width: 0; }
.member-row-name { font-weight: 700; font-size: 0.95rem; }
.member-row-meta { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }
.member-row-actions { display: flex; gap: 2px; align-items: center; flex-shrink: 0; }
.member-edit-row { flex-wrap: wrap; gap: 8px; }
.member-edit-row input[type="text"], .member-edit-row select { font-size: 0.87rem; border: 1.5px solid var(--border); border-radius: 7px; padding: 5px 8px; background: var(--surface); color: var(--text); }

.add-member-form { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--border); }
.add-member-fields { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.add-member-fields input[type="text"] { flex: 1; border: 1.5px solid var(--border); border-radius: 8px; padding: 8px 12px; font-size: 0.9rem; min-width: 110px; background: var(--surface); color: var(--text); }
.add-member-fields select { border: 1.5px solid var(--border); border-radius: 8px; padding: 7px 8px; font-size: 0.9rem; background: var(--surface); color: var(--text); }
.add-member-fields input[type="color"] { width: 38px; height: 36px; border: 1.5px solid var(--border); border-radius: 8px; cursor: pointer; padding: 2px; background: var(--surface); }

.member-select-row { display: flex; align-items: center; gap: 10px; }
.member-select-row select { flex: 1; }
.age-badge { font-size: 0.83rem; color: var(--primary); font-weight: 600; white-space: nowrap; background: #dbeafe; padding: 3px 10px; border-radius: 12px; }
.member-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 6px; }

/* Theme buttons */
.theme-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.theme-btn { padding: 7px 20px; border-radius: 20px; border: 1.5px solid var(--border); background: var(--surface); cursor: pointer; font-size: 0.88rem; transition: all 0.2s; }
.theme-btn.active, .theme-btn:hover { border-color: var(--primary); background: var(--primary); color: #fff; }

/* DatePicker */
.dp-wrap { position: relative; display: inline-flex; flex-direction: column; }
.dp-field { display: block; }
.dp-field .dp-display { width: 100%; }
.dp-inline { display: inline-flex; }
.dp-display { display: inline-flex; align-items: center; gap: 2px; background: var(--surface); border: 1.5px solid var(--border); border-radius: 8px; padding: 7px 10px; box-sizing: border-box; transition: border-color 0.2s; }
.dp-display:focus-within { border-color: var(--primary); }
.dp-seg { background: none; border: none; font-size: 0.91rem; font-family: var(--font); color: var(--text); font-weight: 600; cursor: pointer; padding: 2px 5px; border-radius: 5px; transition: background 0.15s, color 0.15s; }
.dp-seg:hover, .dp-seg-on { background: var(--primary); color: #fff; }
.dp-sl { color: var(--text-muted); font-size: 0.85rem; user-select: none; }
.dp-panel { position: fixed; z-index: 9999; background: var(--surface); border: 1.5px solid var(--border); border-radius: 12px; box-shadow: 0 8px 28px rgba(0,0,0,0.13); padding: 12px; min-width: 232px; }
.dp-nav { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.dp-nav button { background: none; border: none; cursor: pointer; font-size: 1.1rem; padding: 3px 10px; border-radius: 6px; color: var(--text); transition: background 0.15s; }
.dp-nav button:hover { background: var(--border); }
.dp-nav span { font-size: 0.87rem; font-weight: 700; color: var(--text); }
.dp-grid { display: grid; gap: 3px; }
.dp-ygrid { grid-template-columns: repeat(4,1fr); }
.dp-mgrid { grid-template-columns: repeat(4,1fr); }
.dp-dgrid { grid-template-columns: repeat(7,1fr); }
.dp-cell { background: none; border: none; cursor: pointer; padding: 6px 2px; border-radius: 6px; font-size: 0.8rem; font-family: var(--font); color: var(--text); text-align: center; transition: background 0.15s; }
.dp-cell:hover { background: var(--border); }
.dp-cell.dp-sel { background: var(--primary); color: #fff; font-weight: 700; }
.dp-dname { font-size: 0.7rem; color: var(--text-muted); text-align: center; padding: 3px 0; font-weight: 600; }

/* ── Health Assessment ── */
.assess-subtitle { font-size: 0.8rem; color: var(--text-muted); margin: -10px 0 16px; }
.assessment-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(420px, 1fr)); gap: 16px; align-items: stretch; }
.assess-card {
  border-radius: 12px; overflow: hidden;
  border: 1.5px solid var(--border);
  background: var(--surface);
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  border-top: 4px solid var(--mc, var(--primary));
  display: flex; flex-direction: column; height: 100%;
}
.assess-head { padding: 14px 16px 10px; display: flex; justify-content: space-between; align-items: baseline; }
.assess-name { font-weight: 700; font-size: 1rem; }
.assess-meta { font-size: 0.78rem; color: var(--text-muted); }
.assess-metrics { padding: 0 16px 12px; display: flex; flex-direction: column; gap: 6px; }
.assess-row { display: flex; align-items: center; gap: 8px; }
.assess-lbl { font-size: 0.78rem; color: var(--text-muted); font-weight: 600; width: 54px; flex-shrink: 0; }
.assess-val { font-size: 0.88rem; font-weight: 600; flex: 1; }
.st-badge { font-size: 0.72rem; font-weight: 700; padding: 2px 9px; border-radius: 12px; white-space: nowrap; }
.st-green { background: #dcfce7; color: #15803d; }
.st-amber { background: #fef3c7; color: #b45309; }
.st-red   { background: #fee2e2; color: #b91c1c; }
.st-blue  { background: #dbeafe; color: #1d4ed8; }

/* BMI bar */
.bmi-track { position: relative; margin: 4px 0 2px; height: 8px; border-radius: 4px; overflow: visible; }
.bmi-zones { display: flex; width: 100%; height: 100%; border-radius: 4px; overflow: hidden; }
.bz { height: 100%; }
.bz-blue  { background: #93c5fd; }
.bz-green { background: #86efac; }
.bz-amber { background: #fcd34d; }
.bz-red   { background: #fca5a5; }
.bmi-pin { position: absolute; top: 50%; transform: translate(-50%,-50%); width: 13px; height: 13px; border-radius: 50%; background: var(--text); border: 2px solid var(--surface); box-shadow: 0 1px 4px rgba(0,0,0,0.25); pointer-events: none; }
.bmi-labels { display: flex; justify-content: space-between; font-size: 0.65rem; color: var(--text-muted); margin-bottom: 4px; padding: 0 2px; }

/* Suggestions */
.assess-sugg { padding: 12px 16px; background: var(--bg); border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 10px; margin-top: auto; min-height: 148px; overflow: hidden; }
.sugg-row { display: flex; gap: 10px; align-items: flex-start; }
.sugg-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 1px; }
.sugg-row strong { font-size: 0.78rem; color: var(--text-muted); display: block; margin-bottom: 2px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }
.sugg-row p { font-size: 0.82rem; color: var(--text); line-height: 1.45; margin: 0; }

/* Messages */
.msg { margin-top: 10px; font-size: 0.9rem; min-height: 1.2em; }
.msg.success { color: var(--success); }
.msg.error { color: var(--danger); }
.empty { color: var(--text-muted); font-size: 0.88rem; padding: 8px 0; }
.app-footer { text-align: center; padding: 4px 0 8px; font-size: 0.8rem; color: var(--text-muted); }

/* ── Alerts ── */
.alerts-banner { display: flex; flex-direction: column; gap: 6px; margin-bottom: 4px; }
.alert-item {
  display: flex; align-items: center; gap: 10px;
  background: #fffbeb; border-left: 4px solid var(--border); border-radius: 8px;
  padding: 9px 14px; font-size: 0.84rem; color: var(--text);
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}
.alert-icon { font-size: 1rem; flex-shrink: 0; }

/* ── Delta section ── */
.assess-deltas { padding: 10px 16px 8px; border-top: 1px solid var(--border); }
.delta-title { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 5px; }
.delta-row { display: flex; justify-content: space-between; align-items: baseline; font-size: 0.81rem; padding: 2px 0; }
.delta-lbl { color: var(--text-muted); font-size: 0.76rem; }
.delta-val { font-weight: 600; }
.delta-val small { font-weight: 400; color: var(--text-muted); font-size: 0.71rem; }
.delta-good { color: #16a34a; }
.delta-bad  { color: #dc2626; }
.delta-neutral { color: var(--text-muted); }
.delta-alert { color: #dc2626; font-weight: 700; }
.zscore-tag { font-size: 0.72rem; color: var(--text-muted); font-weight: 400; }

/* ── Goals grid (dashboard) ── */
.goals-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(175px, 1fr)); gap: 14px; align-items: stretch; }
.goal-card { background: var(--bg); border-radius: var(--radius); padding: 14px 16px; border-top: 4px solid var(--border); display: flex; flex-direction: column; }
.goal-name { font-weight: 700; font-size: 0.95rem; margin-bottom: 2px; }
.goal-type { font-size: 0.79rem; color: var(--text-muted); margin-bottom: 4px; }
.goal-summary { font-size: 0.77rem; color: var(--text-muted); min-height: 1.2em; margin-bottom: 8px; flex: 1; }
.goal-bar-wrap { background: var(--border); border-radius: 4px; height: 7px; margin-bottom: 7px; overflow: hidden; }
.goal-bar { height: 100%; border-radius: 4px; transition: width 0.5s ease; min-width: 3px; }
.goal-footer { display: flex; justify-content: space-between; align-items: center; font-size: 0.77rem; }
.goal-pct { font-weight: 700; color: var(--text); }
.goal-trend { font-size: 0.72rem; }
.trend-good    { color: #16a34a; }
.trend-bad     { color: #dc2626; }
.trend-neutral { color: var(--text-muted); }

/* ── Goals settings ── */
.goal-setting-row {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  background: var(--bg); border-left: 4px solid var(--border);
  border-radius: 10px; padding: 10px 14px; margin-bottom: 8px;
}
.goal-setting-name { font-weight: 700; font-size: 0.9rem; min-width: 70px; }
.goal-setting-row select, .goal-setting-row input[type="number"] {
  border: 1.5px solid var(--border); border-radius: 7px; padding: 5px 8px;
  font-size: 0.86rem; background: var(--surface); color: var(--text); font-family: var(--font);
}
.goal-target-wrap { display: inline-flex; align-items: center; gap: 4px; }
.goal-target-unit { font-size: 0.83rem; color: var(--text-muted); font-weight: 600; }

/* Cancel edit button in table */
.btn-cancel-edit { background: #fee2e2; border: none; color: #b91c1c; cursor: pointer; font-size: 0.9rem; padding: 3px 8px; border-radius: 5px; transition: background 0.18s; }
.btn-cancel-edit:hover { background: #fca5a5; }

/* ── Export ── */
.export-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.export-btns .btn-primary { font-size: 0.86rem; padding: 8px 18px; }