:root {
  --bg: #0a0a0a;
  --surface: #141210;
  --border: #2a2825;
  --text: #e0ddd8;
  --muted: #888;
  --accent: #FFA047;
  --green: #4caf50;
  --red: #ef5350;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 800px; margin: 0 auto; padding: 20px; }

nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
nav .logo { color: var(--accent); font-weight: 700; font-size: 18px; }
nav a { color: var(--muted); font-size: 14px; }
nav a:hover, nav a.active { color: var(--text); text-decoration: none; }
nav .spacer { flex: 1; }

h1 { font-size: 24px; margin-bottom: 16px; color: var(--text); }
h2 { font-size: 18px; margin: 24px 0 12px; color: var(--text); }
h3 { font-size: 15px; margin: 16px 0 8px; color: var(--muted); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.stat-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}
.stat-box .value { font-size: 24px; font-weight: 700; }
.stat-box .label { font-size: 12px; color: var(--muted); margin-top: 4px; }
.positive { color: var(--green); }
.negative { color: var(--red); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; color: var(--muted); font-weight: 500; padding: 8px; border-bottom: 1px solid var(--border); }
td { padding: 8px; border-bottom: 1px solid var(--border); }
tr:hover { background: rgba(255,160,71,0.04); }

.btn {
  background: var(--accent);
  color: #141210;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
}
.btn:hover { opacity: 0.9; }
.btn-sm { padding: 6px 14px; font-size: 13px; }

input, textarea, select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 14px;
  width: 100%;
  font-family: inherit;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}
textarea { min-height: 100px; resize: vertical; }

label { display: block; margin-bottom: 4px; font-size: 13px; color: var(--muted); }
.field { margin-bottom: 14px; }

.msg { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 14px; }
.msg-ok { background: rgba(76,175,80,0.15); color: var(--green); }
.msg-err { background: rgba(239,83,80,0.15); color: var(--red); }

.journal-post { margin-bottom: 32px; }
.journal-post .date { color: var(--muted); font-size: 13px; }
.journal-post h2 { margin: 4px 0 8px; font-size: 20px; }
.journal-post .body { line-height: 1.7; }

.chart-container { position: relative; height: 300px; margin: 20px 0; }

.empty { text-align: center; color: var(--muted); padding: 40px 20px; }

@media (max-width: 600px) {
  .container { padding: 14px; }
  nav { padding: 10px 14px; gap: 16px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  table { font-size: 12px; }
  td, th { padding: 6px 4px; }
}