:root {
  --bg: #0A0A0A;
  --surface: #111318;
  --surface-2: #1A1B22;
  --surface-3: #22242D;
  --border: #2A2C38;
  --border-strong: #3A3C4A;
  --text: #E8E8F0;
  --text-dim: #8890A8;
  --pink: #FF00FF;
  --blue: #2E5BFF;
  --blue-light: #B8C3FF;
  --green: #2FF801;
  --orange: #FF9900;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
}
* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; background: var(--bg); color: var(--text); font-family: 'Inter', sans-serif; overflow: hidden; }
body { display: flex; flex-direction: column; }

.page { display: none; flex: 1; overflow-y: auto; overflow-x: hidden; -webkit-overflow-scrolling: touch; }
.page.active { display: block; padding-bottom: 80px; }
.page::-webkit-scrollbar { display: none; }

.geo-bg {
  background-image: linear-gradient(rgba(42,44,56,0.4) 1px, transparent 1px), linear-gradient(90deg, rgba(42,44,56,0.4) 1px, transparent 1px);
  background-size: 40px 40px; background-color: var(--bg);
}

header {
  position: relative; flex-shrink: 0;
  height: calc(56px + var(--safe-top)); padding-top: var(--safe-top);
  background: var(--surface); border-bottom: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: space-between;
  padding-left: 20px; padding-right: 20px;
}
.logo { font-size: 18px; font-weight: 900; letter-spacing: -0.02em; color: var(--text); }
.logo span { color: var(--blue-light); }

.unit-toggle { display: flex; background: var(--surface-3); border: 1px solid var(--border-strong); }
.unit-toggle button { padding: 5px 10px; font-size: 10px; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; background: none; border: none; color: var(--text-dim); cursor: pointer; font-family: 'Inter', sans-serif; transition: all 0.15s; }
.unit-toggle button.active { background: var(--blue); color: #fff; }

nav {
  position: relative; flex-shrink: 0;
  height: calc(64px + var(--safe-bottom)); padding-bottom: var(--safe-bottom);
  background: var(--surface); border-top: 1px solid var(--border-strong); display: flex;
}
.nav-item { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; cursor: pointer; transition: background 0.15s; border: none; background: transparent; color: var(--text-dim); font-family: 'Inter', sans-serif; }
.nav-item.active { background: var(--pink); color: #000; }
.nav-item .material-symbols-outlined { font-size: 22px; }
.nav-label { font-size: 10px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }

.section-title { font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-dim); }
.xl-num { font-size: 36px; font-weight: 800; line-height: 1; letter-spacing: -0.04em; }
.lg-num { font-size: 24px; font-weight: 800; line-height: 1; letter-spacing: -0.03em; }
.md-num { font-size: 20px; font-weight: 700; line-height: 1; }

.bento-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border-strong); }
.bento-cell { background: var(--surface); padding: 12px 12px; }

.chart-section { background: var(--surface); border-top: 1px solid var(--border-strong); border-bottom: 1px solid var(--border-strong); padding: 10px; position: relative; overflow: hidden; }
.scan-line { position: absolute; left: 0; right: 0; height: 1px; background: var(--green); opacity: 0.3; animation: scan 5s linear infinite; pointer-events: none; }
@keyframes scan { 0% { top: 0; } 100% { top: 100%; } }

.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); }
.stat-cell { background: var(--surface-3); padding: 6px; text-align: center; }
.stat-label { font-size: 9px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 4px; }
.stat-val { font-size: 15px; font-weight: 700; }

.btn-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 10px; }
.btn { height: 52px; border: none; cursor: pointer; font-family: 'Inter', sans-serif; font-size: 13px; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; display: flex; align-items: center; justify-content: center; gap: 8px; transition: opacity 0.1s, transform 0.1s; }
.btn:active { opacity: 0.75; transform: scale(0.97); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-orange { background: transparent; border: 2px solid var(--orange); color: var(--orange); }
.btn-orange:active { background: var(--orange); color: #000; }
.btn-pink { background: var(--pink); color: #000; }
.btn-green { background: var(--green); color: #000; }

.proto-row { background: var(--surface-2); margin: 0 16px 4px; padding: 8px 12px; display: flex; justify-content: space-between; align-items: center; border-left: 3px solid; }
.proto-row.pink { border-color: var(--pink); }
.proto-row.orange { border-color: var(--orange); }
.proto-row.green { border-color: var(--green); }
.proto-row.blue { border-color: var(--blue); }
.proto-title { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; }
.proto-sub { font-size: 10px; color: var(--text-dim); margin-top: 1px; }

.seg-bar { display: flex; gap: 2px; align-items: center; }
.seg { width: 4px; height: 8px; background: var(--green); }
.seg.off { background: var(--border-strong); }

.chip { padding: 4px 10px; font-size: 10px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; }
.chip-green { background: var(--green); color: #000; }
.chip-orange { background: var(--orange); color: #000; }

.log-form { padding: 16px; }
.field-group { margin-bottom: 16px; }
.field-label { font-size: 11px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 8px; display: block; }
.field-input { width: 100%; background: var(--surface-2); border: 1px solid var(--border-strong); color: var(--text); font-family: 'Inter', sans-serif; font-size: 16px; font-weight: 600; padding: 12px 14px; outline: none; -webkit-appearance: none; appearance: none; }
.field-input:focus { border-color: var(--blue-light); }
.field-select { cursor: pointer; }
.dose-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.dose-opt { background: var(--surface-2); border: 1px solid var(--border-strong); padding: 12px 8px; text-align: center; cursor: pointer; font-family: 'Inter', sans-serif; font-size: 13px; font-weight: 700; color: var(--text-dim); transition: all 0.15s; }
.dose-opt.selected { background: var(--blue); border-color: var(--blue); color: #fff; }

.stone-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stone-row .field-input { text-align: center; }

.log-table { width: 100%; border-collapse: collapse; }
.log-table th { font-size: 10px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--text-dim); padding: 10px 12px; text-align: left; background: var(--surface); border-bottom: 1px solid var(--border-strong); }
.log-table td { padding: 11px 12px; font-size: 13px; border-bottom: 1px solid var(--border); }
.log-table tr:last-child td { border-bottom: none; }
.log-table .td-dose { color: var(--blue-light); font-weight: 700; }
.log-table .td-weight { color: var(--pink); font-weight: 700; }
.log-table .td-dim { color: var(--text-dim); font-size: 11px; }

.section-head { padding: 8px 14px 4px; }
.spacer { height: 16px; }

.modal-overlay { position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,0.85); display: flex; align-items: flex-end; opacity: 0; pointer-events: none; transition: opacity 0.2s; }
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal { background: var(--surface-2); border-top: 2px solid var(--border-strong); width: 100%; padding: 20px 20px calc(20px + var(--safe-bottom)); transform: translateY(100%); transition: transform 0.3s cubic-bezier(0.4,0,0.2,1); max-height: 85vh; overflow-y: auto; }
.modal-overlay.open .modal { transform: translateY(0); }
.modal-title { font-size: 14px; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 20px; display: flex; justify-content: space-between; align-items: center; }
.modal-close { background: none; border: none; color: var(--text-dim); cursor: pointer; font-size: 22px; font-family: 'Material Symbols Outlined'; line-height: 1; }

svg.chart { width: 100%; overflow: visible; }
.chart-wrap { position: relative; height: 87px; margin: 4px 0; }

.range-switch {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 10px 16px 0;
}
.range-btn {
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text-dim);
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.range-btn.active {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.range-btn:active { transform: scale(0.98); }
.range-note {
  padding: 10px 16px 0;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.03em;
}

.toast { position: fixed; top: calc(70px + var(--safe-top)); left: 50%; transform: translateX(-50%) translateY(-20px); background: var(--green); color: #000; font-size: 12px; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; padding: 10px 20px; z-index: 300; opacity: 0; transition: all 0.3s; pointer-events: none; white-space: nowrap; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.data-section { padding: 16px; }
.action-btn { width: 100%; background: var(--surface-2); border: 1px solid var(--border-strong); color: var(--text); font-family: 'Inter', sans-serif; font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; padding: 15px; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 10px; transition: background 0.15s; }
.action-btn:active { background: var(--surface-3); }
.action-btn .material-symbols-outlined { font-size: 18px; }
.danger-btn { border-color: #93000a; color: #ffb4ab; }
.success-btn { border-color: var(--green); color: var(--green); }

.setting-row { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.setting-label { font-size: 13px; font-weight: 600; }
.setting-sub { font-size: 11px; color: var(--text-dim); margin-top: 2px; }

.empty { text-align: center; padding: 48px 24px; color: var(--text-dim); }
.empty .material-symbols-outlined { font-size: 40px; display: block; margin-bottom: 12px; opacity: 0.4; }
.empty p { font-size: 13px; }

.del-btn { background: none; border: none; color: var(--border-strong); cursor: pointer; font-family: 'Material Symbols Outlined'; font-size: 16px; padding: 4px; transition: color 0.15s; }
.del-btn:active { color: #ffb4ab; }

#import-file { display: none; }