/* --- Header --- */
header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px var(--space-4);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.header-brand { display: flex; align-items: center; gap: var(--space-2); }
.header-icon { width: 20px; height: 20px; flex-shrink: 0; }
h1 { font-size: var(--text-lg); font-weight: 600; letter-spacing: var(--tracking-tight); }
.load-area { display: flex; gap: var(--space-1); margin-left: auto; align-items: center; flex-wrap: wrap; }

/* --- Auto-refresh indicator --- */
#refresh-indicator {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-left: var(--space-2);
  font-size: var(--text-xs);
  color: var(--muted);
  white-space: nowrap;
  user-select: none;
}
.ri-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--muted);
  opacity: 0.5;
}
.ri-idle .ri-dot  { background: var(--green); opacity: 0.7; }
.ri-error .ri-dot { background: var(--orange); opacity: 1; }
.ri-loading .ri-dot {
  background: var(--accent);
  opacity: 1;
  animation: ri-pulse 800ms ease-in-out infinite;
}
@keyframes ri-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.25; }
}
@media (prefers-reduced-motion: reduce) {
  .ri-loading .ri-dot { animation: none; opacity: 0.8; }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 5px var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  font-size: var(--text-sm);
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 120ms, background 120ms, opacity 100ms, transform 80ms;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: scale(0.97); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { opacity: 0.85; border-color: var(--accent); }
.btn-connected { border-color: var(--green); color: var(--green); }
.btn-connected:hover { background: rgba(63,185,80,0.1); }

/* --- URL input --- */
#url-in {
  padding: 5px var(--space-2);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: var(--text-sm);
  font-family: inherit;
  width: 240px;
  height: 30px;
  transition: border-color 120ms, box-shadow 120ms;
}
#url-in:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}

/* --- Stat bar --- */
#stat-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
#stat-bar.has-cost { grid-template-columns: repeat(5, 1fr); }
.stat { padding: var(--space-2) var(--space-4); border-right: 1px solid var(--border); }
.stat:last-child { border-right: none; }
.stat-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--muted);
  font-weight: 500;
}
.stat-val {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-top: var(--space-1);
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--tracking-tight);
  line-height: 1.1;
}
.cost-warning {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--orange);
  margin-top: 3px;
}

/* --- Profile filter bar --- */
#profile-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.profile-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--muted);
  font-weight: 500;
  white-space: nowrap;
}
#profile-pills { display: flex; gap: var(--space-1); flex-wrap: wrap; }
.profile-btn {
  padding: 3px var(--space-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: var(--text-xs);
  font-family: inherit;
  cursor: pointer;
  transition: border-color 120ms, background 120ms, color 120ms, transform 80ms;
}
.profile-btn:hover { border-color: var(--accent); color: var(--text); }
.profile-btn:active { transform: scale(0.97); }
.profile-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* --- Daily spending section --- */
#daily-section {
  border-bottom: 1px solid var(--border);
  padding: var(--space-3) var(--space-4);
  flex-shrink: 0;
}
.daily-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
  gap: var(--space-2);
}
.daily-header h2 {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--muted);
}
.date-filter { display: flex; align-items: center; gap: var(--space-1); flex-wrap: wrap; }
.range-btn {
  padding: 3px var(--space-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: var(--text-xs);
  font-family: inherit;
  cursor: pointer;
  transition: border-color 120ms, background 120ms, color 120ms, transform 80ms;
}
.range-btn:hover { border-color: var(--accent); color: var(--text); }
.range-btn:active { transform: scale(0.97); }
.range-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.custom-dates { display: flex; align-items: center; gap: var(--space-1); margin-left: var(--space-1); }
.custom-dates input[type="date"] {
  padding: 3px var(--space-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: var(--text-xs);
  font-family: inherit;
  transition: border-color 120ms;
  color-scheme: dark light;
}
.custom-dates input[type="date"]:focus { outline: none; border-color: var(--accent); }
.date-sep { color: var(--muted); font-size: var(--text-xs); }
.daily-chart-wrap { position: relative; height: 140px; overflow: hidden; }
#c-daily { display: block; width: 100%; height: 100%; }
.daily-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: var(--text-sm);
}

/* --- Layout --- */
#main { display: flex; flex: 1; overflow: hidden; }
#sessions { width: 220px; flex-shrink: 0; border-right: 1px solid var(--border); overflow-y: auto; }

/* --- Session list --- */
.sess-item {
  padding: 10px var(--space-3);
  border-bottom: 1px solid var(--border);
  border-left: 2px solid transparent;
  cursor: pointer;
  user-select: none;
  transition: background 100ms, border-left-color 100ms;
}
.sess-item:hover { background: var(--surface); }
.sess-item.active { background: var(--surface2); border-left-color: var(--accent); }
.sess-name { font-weight: 500; font-size: var(--text-base); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sess-meta { font-size: var(--text-sm); color: var(--muted); margin-top: 1px; }