:root {
  --accent-attention: #F4C95D;
  --accent-success: #5DA271;
  --accent-failure: #C95D5D;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --fg-muted: #666666;
  --border: #d8d8d8;
  --bg-soft: #f5f5f5;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.5;
}

.topbar {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 600;
  font-size: 1.1em;
  color: var(--fg);
  text-decoration: none;
}

.mainnav { flex: 1; display: flex; gap: 16px; }
.mainnav a { color: var(--fg-muted); text-decoration: none; }
.mainnav a:hover { color: var(--fg); }

.userbox { display: flex; align-items: center; gap: 12px; color: var(--fg-muted); }
.username { font-size: 0.9em; }
.inline { display: inline; margin: 0; }

.linklike {
  background: none; border: none; color: var(--fg-muted);
  cursor: pointer; padding: 0; font: inherit; text-decoration: underline;
}
.linklike:hover { color: var(--fg); }

main {
  max-width: 800px;
  margin: 0 auto;
  padding: 24px 20px;
}

footer {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  color: var(--fg-muted);
  font-size: 0.85em;
}

.pause-placeholder { opacity: 0.4; }

.flash-list {
  max-width: 800px;
  margin: 12px auto 0;
  padding: 0 20px;
}

.flash {
  padding: 10px 14px;
  border-radius: 4px;
  margin-bottom: 8px;
  border-left: 4px solid var(--fg-muted);
  background: var(--bg-soft);
}

.flash-info    { border-left-color: var(--accent-attention); }
.flash-success { border-left-color: var(--accent-success); }
.flash-error   { border-left-color: var(--accent-failure); }

form { margin-bottom: 16px; }
label { display: block; margin-bottom: 4px; font-weight: 500; }
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font: inherit;
  margin-bottom: 12px;
}

button[type="submit"], .button {
  padding: 10px 16px;
  border: 1px solid var(--fg);
  background: var(--fg);
  color: white;
  border-radius: 4px;
  cursor: pointer;
  font: inherit;
}
button[type="submit"]:hover, .button:hover { opacity: 0.9; }

.button-secondary {
  background: var(--bg);
  color: var(--fg);
}

h1 { margin-top: 0; }

.tooltip {
  display: inline-flex;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 12px;
  align-items: center;
  justify-content: center;
  cursor: help;
  margin-left: 4px;
  position: relative;
}
.tooltip:hover::after, .tooltip:focus::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--fg);
  color: white;
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 0.85em;
  white-space: nowrap;
  z-index: 10;
  pointer-events: none;
}

.errorpage main { text-align: center; padding-top: 80px; }
.errorpage h1 { font-size: 4em; margin: 0; color: var(--fg-muted); }

@media (max-width: 600px) {
  .topbar { flex-wrap: wrap; gap: 12px; }
  .mainnav { order: 3; width: 100%; flex-wrap: wrap; }
  main { padding: 16px; }
}