:root {
  --bg: #0f1115;
  --card: #171a21;
  --border: #262b35;
  --text: #eef0f3;
  --muted: #8b93a3;
  --blue: #4f8ef7;
  --orange: #f7a24f;
  --green: #4fbf74;
  --red: #e5534b;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 20px 16px 100px;
}

h1 { font-size: 22px; margin: 8px 0 4px; }
h2 { font-size: 17px; margin: 24px 0 10px; color: var(--text); }
p.muted { color: var(--muted); font-size: 14px; margin-top: 0; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}

label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin: 12px 0 6px;
}

input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #10131a;
  color: var(--text);
  font-size: 16px;
}

textarea { resize: vertical; min-height: 60px; }

button, .btn {
  display: block;
  width: 100%;
  padding: 14px;
  border-radius: 10px;
  border: none;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  margin-top: 16px;
  text-decoration: none;
}

.btn-primary { background: var(--blue); color: white; }
.btn-secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-walk { background: var(--blue); color: white; }
.btn-gym { background: var(--orange); color: #1a1200; }
.btn-weight { background: var(--green); color: #041a0b; }

.grid3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin: 16px 0;
}

.grid3 .btn { margin-top: 0; padding: 16px 6px; font-size: 13px; }

.error { color: var(--red); font-size: 14px; margin-top: 10px; }
.success { color: var(--green); font-size: 14px; margin-top: 10px; }

.log-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.log-row:last-child { border-bottom: none; }
.log-badge {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 20px;
  margin-right: 8px;
}
.badge-walk { background: rgba(79,142,247,0.15); color: var(--blue); }
.badge-gym { background: rgba(247,162,79,0.15); color: var(--orange); }
.badge-weight { background: rgba(79,191,116,0.15); color: var(--green); }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 8px;
}
.topbar a { color: var(--muted); font-size: 13px; text-decoration: none; }

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text);
  margin: 10px 0;
}
.checkbox-row input[type="checkbox"] {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.badge-checkin { background: rgba(155,120,247,0.15); color: #b39dfb; }

.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.stat .num { font-size: 24px; font-weight: 700; }
.stat .label { font-size: 12px; color: var(--muted); }