:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #eef0f3;
  --text: #14161a;
  --muted: #6b7280;
  --border: #e3e6ea;
  --accent: #2f6fed;
  --accent-text: #ffffff;
  --pos: #12805c;
  --neg: #d23a3a;
  --warn: #b26a00;
  --warn-bg: #fff4e0;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06);
  --radius: 14px;
  --tabbar-h: 62px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #181b21;
    --surface-2: #22262e;
    --text: #e8eaee;
    --muted: #9097a3;
    --border: #2a2f38;
    --accent: #5b8cff;
    --accent-text: #0b0d11;
    --pos: #3ccf91;
    --neg: #ff6b6b;
    --warn: #f0b04a;
    --warn-bg: #2e2513;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

h1, h2 { margin: 0; font-weight: 650; letter-spacing: -.01em; }
h1 { font-size: 22px; }
h2 { font-size: 16px; }
button { font: inherit; color: inherit; }
.muted { color: var(--muted); }
.num, .balance-value { font-variant-numeric: tabular-nums; }
.pos { color: var(--pos); }
.neg { color: var(--neg); }

/* Layout */

.app { min-height: 100vh; }

.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(env(safe-area-inset-top) + 12px) 16px 10px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
}
.topbar-right { display: flex; align-items: center; gap: 8px; }

main {
  max-width: 640px; margin: 0 auto;
  padding: 4px 16px calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 24px);
}

.tab { animation: fade .15s ease-out; }
@keyframes fade { from { opacity: .4; } to { opacity: 1; } }

.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin: 22px 2px 10px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
}

.footnote { color: var(--muted); font-size: 12.5px; margin: 10px 2px 0; }

/* Status */

.status-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--muted);
}
.status-dot.ok { background: var(--pos); }
.status-dot.err { background: var(--neg); }

.icon-btn {
  display: grid; place-items: center;
  width: 38px; height: 38px; border-radius: 10px;
  border: 0; background: transparent; cursor: pointer;
}
.icon-btn:active { background: var(--surface-2); }
.icon-btn.spinning svg { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Balance */

.balance-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 16px;
}
.label { color: var(--muted); font-size: 12.5px; }
.balance-value { font-size: 32px; font-weight: 700; letter-spacing: -.02em; margin: 2px 0 12px; }
.balance-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.balance-grid .num { font-weight: 600; font-size: 15px; }

.alert {
  margin-top: 12px; padding: 10px 14px; border-radius: 12px;
  background: var(--warn-bg); color: var(--warn); font-size: 13.5px;
}

/* Lists */

.list { display: flex; flex-direction: column; gap: 8px; }

.row {
  display: grid; grid-template-columns: 1fr auto; gap: 2px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 12px 14px;
}
.row-title { display: flex; align-items: center; gap: 6px; font-weight: 600; min-width: 0; }
.row-title .sym { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row-right { text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; }
.row-sub { color: var(--muted); font-size: 12.5px; font-variant-numeric: tabular-nums; }
.row-sub.right { text-align: right; }
.rank { color: var(--muted); font-weight: 500; min-width: 1.6em; }

.tag {
  font-size: 10.5px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase;
  padding: 2px 6px; border-radius: 6px;
  background: var(--surface-2); color: var(--muted);
}
.tag.short { color: var(--neg); }
.tag.long { color: var(--pos); }
.tag.bot { background: var(--accent); color: var(--accent-text); }

.empty {
  text-align: center; color: var(--muted);
  padding: 28px 12px; border: 1px dashed var(--border); border-radius: var(--radius);
}

.kv { display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; font-size: 14px; }
.kv dt { color: var(--muted); margin: 0; }
.kv dd { margin: 0; text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; }

/* Feed */

.feed { display: flex; flex-direction: column; gap: 8px; }
.event {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 12px 14px;
}
.event.good { border-left-color: var(--pos); }
.event.bad { border-left-color: var(--neg); }
.event.warn { border-left-color: var(--warn); }
.event.info { border-left-color: var(--accent); }
.event-text { white-space: pre-line; overflow-wrap: anywhere; font-size: 14px; }
.event-time { color: var(--muted); font-size: 12px; margin-top: 6px; }
.event.collapsed .event-text { max-height: 9.5em; overflow: hidden; -webkit-mask-image: linear-gradient(#000 70%, transparent); mask-image: linear-gradient(#000 70%, transparent); }

.push-banner { display: flex; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.push-banner p { margin: 2px 0 0; font-size: 13px; }

/* Segmented */

.segmented {
  display: flex; gap: 4px; padding: 4px;
  background: var(--surface-2); border-radius: 12px;
  margin-bottom: 12px;
}
.seg {
  flex: 1; border: 0; background: transparent; cursor: pointer;
  padding: 8px 6px; border-radius: 9px; font-size: 14px; font-weight: 550; color: var(--muted);
}
.seg.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }

/* Stats */

.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.stat {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 12px 14px;
}
.stat .v { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; margin-top: 2px; }
.stat.wide { grid-column: 1 / -1; }

/* Forms */

.field { display: flex; flex-direction: column; gap: 6px; }
.field > span { font-size: 13.5px; font-weight: 550; }
.field small { color: var(--muted); font-size: 12px; }
input[type=password], input[type=number], input[type=text] {
  width: 100%; font: inherit; font-size: 16px; color: var(--text);
  background: var(--surface-2); border: 1px solid transparent;
  border-radius: 10px; padding: 11px 12px; outline: none;
  font-variant-numeric: tabular-nums;
}
input:focus { border-color: var(--accent); background: var(--surface); }
input.invalid { border-color: var(--neg); }

.settings-form { display: flex; flex-direction: column; gap: 16px; }
.settings-form .field-row { display: flex; align-items: center; gap: 8px; }
.settings-form .changed input { border-color: var(--accent); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 0; border-radius: 11px; cursor: pointer;
  padding: 12px 18px; font-weight: 600; font-size: 15px;
}
.btn:disabled { opacity: .5; cursor: default; }
.btn-primary { background: var(--accent); color: var(--accent-text); }
.btn-ghost { background: var(--surface-2); color: var(--text); }
.btn-sm { padding: 9px 14px; font-size: 14px; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
#feed-more { width: 100%; margin-top: 12px; }

.form-error { color: var(--neg); min-height: 1.2em; margin: 0; font-size: 14px; }
.form-msg { min-height: 1.2em; margin: 10px 2px 0; font-size: 14px; }
.form-msg.ok { color: var(--pos); }
.form-msg.err { color: var(--neg); }

/* Login */

.login {
  min-height: 100vh; display: grid; place-items: center;
  padding: 24px 16px;
}
.login-card {
  width: 100%; max-width: 360px;
  display: flex; flex-direction: column; gap: 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; padding: 28px 22px; box-shadow: var(--shadow);
}
.login-card h1 { text-align: center; }
.login-logo {
  width: 52px; height: 52px; margin: 0 auto; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--accent); color: var(--accent-text);
}

/* Tab bar */

.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  display: grid; grid-template-columns: repeat(5, 1fr);
  height: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-top: 1px solid var(--border);
}
.tabbtn {
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  border: 0; background: transparent; cursor: pointer;
  color: var(--muted); font-size: 11px; font-weight: 550;
}
.tabbtn svg { width: 24px; height: 24px; }
.tabbtn.active { color: var(--accent); }
.badge {
  position: absolute; top: 8px; left: calc(50% + 6px);
  min-width: 8px; height: 8px; border-radius: 4px; background: var(--neg);
}

/* Toast */

.toast {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 14px);
  z-index: 20; max-width: calc(100% - 32px);
  background: var(--text); color: var(--bg);
  padding: 10px 16px; border-radius: 12px; font-size: 14px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .2);
}

@media (min-width: 720px) {
  .tabbar { max-width: 640px; margin: 0 auto; border: 1px solid var(--border); border-radius: 18px 18px 0 0; }
}