:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #1c1f24;
  --muted: #6b7280;
  --border: #dfe2e7;
  --accent: #2459d6;
  --accent-hover: #1c48b0;
  --error-bg: #fdecec;
  --error-text: #a12020;
  --radius: 8px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--font);
}

a { color: var(--accent); }
h1 { font-size: 24px; margin: 0 0 20px; }
h2 { font-size: 17px; margin: 0 0 6px; }
.muted { color: var(--muted); }

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 600; color: var(--text); text-decoration: none; }
.nav { display: flex; gap: 16px; flex: 1; }
.nav a { text-decoration: none; }
.userbox { display: flex; align-items: center; gap: 12px; }
.userbox form { margin: 0; }

.container { max-width: 1100px; margin: 0 auto; padding: 28px 24px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.list { display: grid; gap: 12px; }

.auth-wrap { display: flex; justify-content: center; padding-top: 10vh; }
.auth-card { width: 100%; max-width: 360px; display: grid; gap: 14px; }
.auth-card h1 { margin: 0; }

.field { display: grid; gap: 4px; align-content: start; }
.field span { font-size: 13px; color: var(--muted); }
input:not([type=checkbox]):not([type=radio]):not([type=hidden]), textarea, select {
  width: 100%;
  padding: 9px 11px;
  font: inherit;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}
input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.button {
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}
.button:hover { background: var(--accent-hover); }
.link-button {
  padding: 0;
  font: inherit;
  color: var(--accent);
  background: none;
  border: 0;
  cursor: pointer;
}

.alert { padding: 10px 12px; border-radius: 6px; font-size: 14px; }
.alert-error { background: var(--error-bg); color: var(--error-text); }

.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; }
.stat-value { font-size: 28px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat-label { color: var(--muted); font-size: 13px; }

.small { font-size: 13px; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 13px; }
code { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 12px; background: var(--bg); padding: 1px 4px; border-radius: 3px; }
.nav a.active { color: var(--text); font-weight: 600; }

.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.page-head h1, .page-head h2 { margin: 0; }
.section-gap { margin-top: 36px; }
.back { display: inline-block; font-size: 13px; text-decoration: none; margin-bottom: 4px; }

.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; padding: 10px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.table td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.table tr:last-child td { border-bottom: 0; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.table a { text-decoration: none; }
.table a:hover { text-decoration: underline; }
.table tr.inactive td { color: var(--muted); }

.badge { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 10px; background: var(--bg); color: var(--muted); border: 1px solid var(--border); white-space: nowrap; }
.env { display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 6px; border-radius: 4px; margin-right: 6px; }
.env-dev { background: #e6f4ea; color: #1e6b34; }
.env-production { background: #fdecec; color: #a12020; }

.form { display: grid; gap: 16px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-grid-host { grid-template-columns: minmax(0, 1fr) 90px; gap: 10px; }
.form-section { font-size: 15px; margin: 8px 0 0; padding-top: 16px; border-top: 1px solid var(--border); }
.field-narrow { max-width: 420px; }
.field-error { font-size: 13px; color: var(--error-text); }
.hint { font-size: 12px; color: var(--muted); }
.input-row { display: flex; gap: 8px; }
.input-row input { flex: 1; min-width: 0; }
textarea { resize: vertical; }
.checkbox { display: flex; align-items: baseline; gap: 8px; cursor: pointer; }
.checkbox input { flex-shrink: 0; }
.checklist { display: grid; gap: 6px; }
.form-actions { display: flex; gap: 10px; align-items: center; }
a.button { display: inline-block; text-decoration: none; }
.button-secondary { color: var(--accent); background: var(--surface); border: 1px solid var(--border); font-weight: 500; }
.button-secondary:hover { background: var(--bg); }
.button-danger { background: var(--error-text); }
.button-danger:hover { background: #7f1919; }
.button-danger-outline { color: var(--error-text); background: none; border: 1px solid currentColor; font-weight: 500; }
.danger-zone { margin-top: 20px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.danger-zone span { display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.alert-success { background: #e6f4ea; color: #1e6b34; margin-bottom: 16px; }

.min0 { min-width: 0; }
.form-narrow { max-width: 760px; }
.card-link { display: grid; gap: 6px; color: inherit; text-decoration: none; }
.card-link:hover { border-color: var(--accent); }
.card-link h2 { color: var(--accent); }
.empty { display: grid; gap: 10px; justify-items: start; }
.empty h2, .empty p { margin: 0; }
a.stat { color: inherit; text-decoration: none; }
a.stat:hover { border-color: var(--accent); }
.alert-info { background: #e8effc; color: #1c3f8f; }

.status { display: inline-block; font-size: 12px; font-weight: 500; padding: 2px 9px; border-radius: 10px; background: #eef0f3; color: #3d4450; white-space: nowrap; }
.status-attention { background: #fff3d6; color: #8a5a00; }
.status-final { background: #eef0f3; color: var(--muted); }
.status-lg { font-size: 13px; padding: 4px 12px; }

.tabs { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 14px; }
.tabs a { padding: 6px 12px; border-radius: 6px; text-decoration: none; font-size: 14px; }
.tabs a.active { background: var(--surface); border: 1px solid var(--border); color: var(--text); font-weight: 600; }

.task-layout { display: grid; gap: 20px; max-width: 820px; }
.task-layout-admin { grid-template-columns: minmax(0, 1fr) 280px; max-width: none; align-items: start; }
.task-main { display: grid; gap: 14px; min-width: 0; }
.task-side { display: grid; gap: 14px; position: sticky; top: 16px; }
.task-side h2, .spec h2, .decision h2, .review h2 { font-size: 15px; margin: 0 0 8px; }
.text { white-space: normal; overflow-wrap: anywhere; }
.spec { border-color: #b9cdf5; }
.estimate { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); }
.decision { border-color: #f0c86a; background: #fffbf0; }
.decision p { margin: 0 0 12px; }
.decision-buttons { display: flex; gap: 10px; flex-wrap: wrap; }
.decision-buttons form { margin: 0; }
.decision-extra { margin-top: 14px; }
.hours { align-items: center; max-width: 240px; }
.label { font-size: 13px; color: var(--muted); }

.messages { display: grid; gap: 10px; }
.message, .original { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; display: grid; gap: 6px; }
.message-head { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.message-ai { background: #f4f7fe; border-color: #d3dff7; }
.message-admin { border-left: 3px solid var(--accent); }
.message-internal { background: #fffbea; border-style: dashed; }
.system-line { text-align: center; font-size: 12px; color: var(--muted); }

.attachments { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.thumb img { display: block; width: 120px; height: 90px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border); }
.file { display: inline-block; padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; text-decoration: none; max-width: 100%; overflow-wrap: anywhere; }

.history { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }

@media (max-width: 900px) {
  .task-layout-admin { grid-template-columns: minmax(0, 1fr); }
  .task-side { position: static; }
}

@media (max-width: 700px) {
  .form-grid, .form-grid-3 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 600px) {
  .topbar { flex-wrap: wrap; padding: 12px 16px; gap: 12px; }
  .container { padding: 20px 16px; }
}