:root {
  --bg: #0f1115;
  --card: #181b22;
  --border: #272b35;
  --text: #e8eaf0;
  --muted: #8b91a1;
  --accent: #4ade80;
  --accent-ink: #052e16;
  --danger: #f87171;
  --radius: 14px;
  --tabbar-h: 62px;
  color-scheme: dark; /* native pickers + date icons render light-on-dark */
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
}

a { color: var(--accent); }
h1, h2 { margin: 0; }
h2 { font-size: 1rem; color: var(--muted); font-weight: 600; margin-bottom: 10px; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(12px + env(safe-area-inset-top)) 16px 12px;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: var(--bg); z-index: 5;
}
.topbar h1 { font-size: 1.25rem; }
.topbar form { margin: 0; }

.container { max-width: 640px; margin: 0 auto; padding: 16px; display: grid; gap: 14px; }

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

/* forms */
label { display: block; font-size: .85rem; color: var(--muted); }
input, select {
  width: 100%; margin-top: 4px; padding: 12px;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
  font: inherit; font-size: 16px; /* 16px stops iOS zoom-on-focus */
  min-height: 46px;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.form-grid h2, .form-grid .wide { grid-column: 1 / -1; }

.btn {
  display: block; width: 100%; min-height: 48px; padding: 12px;
  background: var(--accent); color: var(--accent-ink);
  border: 0; border-radius: 12px; font: inherit; font-weight: 700; cursor: pointer;
}
.btn:active { filter: brightness(.9); }
.link { background: none; border: 0; color: var(--muted); font: inherit; font-size: .85rem; padding: 8px 0; cursor: pointer; }
.del {
  background: none; border: 0; color: var(--danger);
  font-size: 1.3rem; line-height: 1; padding: 8px 10px; cursor: pointer;
}

/* lists */
.list { list-style: none; margin: 0; padding: 0; }
.list li {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.list li:last-child { border-bottom: 0; }
.list .main { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.list .sub { color: var(--muted); font-size: .85rem; }
.empty { color: var(--muted); }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; text-align: center; }
.stat { display: flex; flex-direction: column; align-items: center; gap: 2px; min-width: 0; }
.stat b { font-size: 1.25rem; white-space: nowrap; }
.stat span { font-size: .75rem; color: var(--muted); white-space: nowrap; }
.stat .label { text-transform: uppercase; letter-spacing: .04em; font-size: .65rem; margin-top: 2px; }
.big { font-size: 1.8rem; font-weight: 700; margin: 0; }

/* bottom 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: var(--card); border-top: 1px solid var(--border);
}
.tabbar a {
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); text-decoration: none; font-size: .8rem; font-weight: 600;
}
.tabbar a.active { color: var(--accent); }

#toast {
  position: fixed; left: 50%; bottom: calc(var(--tabbar-h) + 16px + env(safe-area-inset-bottom));
  transform: translateX(-50%); max-width: 90%;
  background: var(--danger); color: #1a0505; padding: 10px 16px; border-radius: 10px;
  font-weight: 600; display: none; z-index: 20;
}

@media (min-width: 700px) {
  .tabbar { max-width: 640px; left: 50%; transform: translateX(-50%); border-radius: 14px 14px 0 0; border: 1px solid var(--border); }
}
.list .sub { white-space: pre-line; }
.stat .left { color: var(--accent); font-weight: 600; margin-top: 4px; }
.stat .over { color: var(--danger); font-weight: 600; margin-top: 4px; }
textarea {
  width: 100%; margin-top: 4px; padding: 12px; resize: vertical;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px; font: inherit; font-size: 16px;
}
textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
#toast.ok { background: var(--accent); color: var(--accent-ink); }
input[type="date"], input[type="time"] { cursor: pointer; }
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator { cursor: pointer; opacity: .8; }

/* user dropdown */
.usermenu { position: relative; }
.userbtn {
  background: var(--card); border: 1px solid var(--border); color: var(--text);
  border-radius: 99px; padding: 8px 14px; font: inherit; font-size: .9rem; font-weight: 600;
  min-height: 40px; cursor: pointer;
}
.userbtn .caret { color: var(--muted); margin-left: 2px; }
.menu {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 170px; z-index: 40;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .45); overflow: hidden;
}
.menu[hidden] { display: none; }
.menu a, .menu button {
  display: block; width: 100%; text-align: left; padding: 14px 16px; min-height: 48px;
  background: none; border: 0; border-bottom: 1px solid var(--border);
  color: var(--text); font: inherit; text-decoration: none; cursor: pointer;
}
.menu form { margin: 0; }
.menu form button { border-bottom: 0; color: var(--danger); }
.menu a:active, .menu button:active { background: var(--bg); }