:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --border: #e3e6ea;
  --text: #1a1d21;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --danger: #dc2626;
  --status-todo: #6b7280;
  --status-in_progress: #2563eb;
  --status-review: #d97706;
  --status-done: #16a34a;
  --prio-low: #6b7280;
  --prio-normal: #2563eb;
  --prio-high: #dc2626;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

main { max-width: 1100px; margin: 24px auto 48px; padding: 0 16px; }
h1 { font-size: 24px; margin: 0 0 8px; }
.muted { color: var(--muted); }
.empty { color: var(--muted); padding: 24px 0; }

/* Topbar */
.topbar {
  display: flex; align-items: center; gap: 24px;
  background: var(--card); border-bottom: 1px solid var(--border);
  padding: 10px 20px;
}
.brand { font-weight: 700; font-size: 17px; color: var(--text); text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.brand-logo { height: 24px; width: auto; }
.topbar nav a { color: var(--accent); text-decoration: none; }
.topbar-user { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* Table */
.table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.table th, .table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.table th { background: #fafbfc; font-weight: 600; color: var(--muted); font-size: 13px; }
.table tr:last-child td { border-bottom: none; }
.table a { color: var(--accent); text-decoration: none; }
.table a:hover { text-decoration: underline; }

/* Badges */
.badge {
  display: inline-block; padding: 2px 10px; border-radius: 999px;
  font-size: 12.5px; font-weight: 600; white-space: nowrap;
  color: #fff;
}
.status-todo { background: var(--status-todo); }
.status-in_progress { background: var(--status-in_progress); }
.status-review { background: var(--status-review); }
.status-done { background: var(--status-done); }
.prio-low { background: var(--prio-low); }
.prio-normal { background: var(--prio-normal); }
.prio-high { background: var(--prio-high); }

/* Buttons */
.btn {
  display: inline-block; padding: 7px 14px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--card);
  color: var(--text); font: inherit; cursor: pointer; text-decoration: none;
}
.btn:hover { border-color: #c9cfd6; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-ghost { border-color: transparent; background: transparent; color: var(--accent); padding: 4px 8px; }
.btn-sm { font-size: 13px; }

/* Project page */
.project-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 12px; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tab {
  padding: 8px 16px; text-decoration: none; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.45);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 20px; z-index: 100; overflow-y: auto;
}
.modal-backdrop[hidden] { display: none; }
.modal-box {
  background: var(--card); border-radius: 10px; padding: 24px 32px;
  width: min(1280px, 100%);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.modal-box h2 { margin: 0 0 16px; font-size: 20px; }

/* Task card */
.task-card-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 4px; }
.task-card-head { display: flex; gap: 8px; }
.task-card-icons { display: flex; gap: 2px; align-items: center; }
.task-card-icons form { margin: 0; display: flex; }
.task-card h2 { margin: 0 0 12px; font-size: 20px; }
.task-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 8px 24px; margin: 0 0 12px; }
.task-meta div { display: flex; gap: 8px; }
.task-meta dt { color: var(--muted); }
.task-meta dd { margin: 0; font-weight: 500; }
.task-desc { background: #fafbfc; border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; margin-bottom: 16px; white-space: pre-wrap; }

/* Blockers */
.blockers { border-top: 1px solid var(--border); margin-top: 16px; padding-top: 12px; }
.blockers h3 { margin: 0 0 8px; font-size: 14px; color: var(--muted); font-weight: 600; }
.blockers h3 .muted { font-weight: 400; }
.blocker-row { display: flex; align-items: center; gap: 10px; padding: 4px 0; }
.blocker-row a { color: var(--accent); text-decoration: none; }
.blocker-row a:hover { text-decoration: underline; }
.blocker-row form { margin-left: auto; }
.blocker-row.blocker-done { opacity: 0.55; }
.blocker-row.blocker-done a { color: var(--muted); text-decoration: line-through; }
.btn-icon {
  border: none; background: transparent; color: var(--muted);
  font-size: 18px; line-height: 1; cursor: pointer; padding: 2px 6px;
  border-radius: 6px;
}
.btn-icon svg { display: block; }
.btn-icon:hover { color: var(--danger); background: rgba(0,0,0,0.05); }
.btn-icon.icon-edit:hover { color: var(--accent); }
.blocker-form { display: flex; gap: 8px; margin-top: 8px; }
.blocker-form select {
  flex: 1; padding: 7px 10px; border: 1px solid var(--border);
  border-radius: 6px; font: inherit; background: #fff; color: var(--text);
}

/* Comments */
.comments { border-top: 1px solid var(--border); margin-top: 16px; padding-top: 12px; }
.comments h3 { margin: 0 0 8px; font-size: 14px; color: var(--muted); font-weight: 600; }
.comments h3 .muted { font-weight: 400; }
.comment-list { margin-bottom: 4px; }
.comment { padding: 8px 0; border-bottom: 1px dashed var(--border); }
.comment:last-child { border-bottom: none; }
.comment-head { display: flex; align-items: baseline; gap: 8px; font-size: 13px; }
.comment-author { font-weight: 600; }
.comment-head form { margin-left: auto; display: flex; }
.comment-head .btn-icon { font-size: 15px; }
.comment-text { margin-top: 2px; }
.comment-form { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.comment-form textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: 6px; font: inherit; color: var(--text); background: #fff;
  resize: vertical;
}
.comment-form textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.comment-form .btn { align-self: flex-end; }
.comment-form .errorlist { margin: 0; }

/* Time tracking */
.time-tracking { border-top: 1px solid var(--border); margin-top: 16px; padding-top: 12px; }
.time-tracking h3 { margin: 0 0 8px; font-size: 14px; color: var(--muted); font-weight: 600; }
.time-tracking h3 .muted { font-weight: 400; }
.time-total { font-weight: 600; color: var(--text); font-variant-numeric: tabular-nums; }
.timer-running {
  background: #f0f7ff; border: 1px solid #b9d6f2; border-radius: 8px;
  padding: 10px 12px; margin-bottom: 10px;
}
.timer-running-head { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.timer-dot {
  width: 8px; height: 8px; border-radius: 50%; background: #2e9e44;
  animation: timer-pulse 1.2s ease-in-out infinite;
}
@keyframes timer-pulse { 50% { opacity: 0.25; } }
.timer-clock { font-variant-numeric: tabular-nums; font-weight: 700; font-size: 18px; }
.timer-stop-form { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.timer-stop-form textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: 6px; font: inherit; color: var(--text); background: #fff;
  resize: vertical;
}
.timer-stop-form textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.timer-stop-form .file-field { margin: 0; font-size: 13px; color: var(--muted); }
.timer-stop-form .file-field input { margin-top: 4px; }
.timer-stop-form .errorlist { margin: 0; }
.timer-stop-actions { display: flex; justify-content: flex-end; }
.timer-start-form { margin-bottom: 10px; }
.time-entries { display: flex; flex-direction: column; }
.time-entry { padding: 8px 0; border-bottom: 1px dashed var(--border); }
.time-entry:last-child { border-bottom: none; }
.time-entry-running { border-left: 3px solid #2e9e44; padding-left: 8px; }
.time-entry-head { display: flex; align-items: baseline; gap: 8px; font-size: 13px; }
.time-entry-user { font-weight: 600; }
.time-entry-head .badge { font-size: 11px; }
.time-entry-head form { margin-left: 0; display: flex; }
.time-entry-head .btn-icon { font-size: 15px; }
.time-entry-head > :last-child { margin-left: auto; }
.time-entry-duration { font-variant-numeric: tabular-nums; font-weight: 600; }
.time-entry-comment { margin-top: 2px; font-size: 13px; }
.time-entry-files { margin-top: 4px; display: flex; flex-wrap: wrap; gap: 12px; font-size: 13px; }
.time-entry-files a { color: var(--accent); text-decoration: none; }
.time-entry-files a:hover { text-decoration: underline; }

/* Forms */
label { display: block; margin-bottom: 12px; font-size: 14px; color: var(--muted); }
label input, label select, label textarea {
  display: block; width: 100%; margin-top: 4px; padding: 8px 10px;
  border: 1px solid var(--border); border-radius: 6px; font: inherit;
  color: var(--text); background: #fff;
}
label input:focus, label select:focus, label textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
label textarea { resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-actions { display: flex; gap: 8px; margin-top: 16px; }
.errorlist { color: var(--danger); margin: 4px 0; padding: 0; list-style: none; font-size: 13px; }
.error { color: var(--danger); }

/* Login */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 32px; width: 100%; max-width: 360px; }
.login-box h1 { text-align: center; margin-bottom: 20px; }
.login-box button { width: 100%; margin-top: 8px; }
.login-title { display: flex; align-items: center; justify-content: center; gap: 12px; }
.login-logo { height: 44px; width: auto; }

/* Filters */
.filters { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.filter-chip {
  padding: 4px 12px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--card); color: var(--muted); font-size: 13px;
  text-decoration: none; white-space: nowrap;
}
.filter-chip:hover { border-color: #c9cfd6; color: var(--text); }
.filter-chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Board */
.board-toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.board-hint { font-size: 13px; }
.board {
  display: flex; gap: 12px; align-items: flex-start;
  overflow-x: auto; padding-bottom: 8px;
}
.board-col {
  flex: 1 1 0; min-width: 230px;
  background: #eef0f3; border: 1px solid var(--border); border-radius: 10px;
  display: flex; flex-direction: column;
  max-height: calc(100vh - 230px);
}
.board-col-head {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 12px; font-size: 14px; border-bottom: 1px solid var(--border);
}
.board-count {
  margin-left: auto; background: rgba(0,0,0,0.06); color: var(--muted);
  border-radius: 999px; padding: 1px 9px; font-size: 12px;
}
.board-col-body {
  padding: 8px; display: flex; flex-direction: column; gap: 8px;
  overflow-y: auto; min-height: 70px;
}
.board-col-body.drag-over {
  background: rgba(37, 99, 235, 0.08);
  outline: 2px dashed var(--accent); outline-offset: -4px; border-radius: 8px;
}
.board-empty { color: var(--muted); font-size: 13px; margin: 4px 10px; }
.board-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; cursor: grab;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.board-card:hover { border-color: #c9cfd6; box-shadow: 0 2px 6px rgba(0,0,0,0.08); }
.board-card.dragging { opacity: 0.45; cursor: grabbing; }
.board-project {
  display: inline-block; margin-bottom: 6px;
  font-size: 11.5px; font-weight: 600; color: var(--muted);
  background: #f6f8fa; border: 1px solid var(--border); border-radius: 4px;
  padding: 1px 8px; white-space: nowrap;
}
.board-card-title { margin: 0 0 6px; font-size: 14px; font-weight: 600; line-height: 1.35; }
.board-card-meta {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--muted);
}
.board-card-meta .badge { font-size: 11.5px; padding: 1px 8px; }
.board-blocked { margin-top: 6px; font-size: 12px; color: var(--danger); }
.board-due.overdue { color: var(--danger); font-weight: 600; }

/* Toast */
#toast {
  position: fixed; right: 20px; bottom: 20px; z-index: 200;
  background: #1f2937; color: #fff; padding: 10px 16px; border-radius: 8px;
  max-width: 380px; font-size: 14px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}
#toast.show { opacity: 1; transform: none; }
#toast.toast-error { background: var(--danger); }

/* Graph */
.graph-toolbar { display: flex; align-items: center; gap: 24px; margin-bottom: 12px; flex-wrap: wrap; }
.graph-filter { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.graph-filter select {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px;
  font: inherit; background: #fff; color: var(--text);
}
.graph-legend { display: flex; gap: 16px; list-style: none; margin: 0; padding: 0; font-size: 13px; color: var(--muted); flex-wrap: wrap; }
.graph-legend li { display: flex; align-items: center; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.graph-canvas {
  height: 68vh; min-height: 360px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--card);
  overflow: hidden;
}
.graph-canvas .empty, .graph-canvas .error { padding: 24px; }
.graph-hint { margin-top: 8px; font-size: 13px; }

/* Редактирование связей на графе */
.graph-toolbar .btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.edge-popover {
  position: fixed; z-index: 300;
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  padding: 12px 14px; width: 300px;
}
.edge-popover-title { font-weight: 600; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.edge-popover-text { font-size: 14px; margin-bottom: 10px; overflow-wrap: anywhere; }
.edge-popover-actions { display: flex; gap: 8px; justify-content: flex-end; }

/* Messages */
.messages { list-style: none; margin: 0 0 16px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.message {
  padding: 10px 14px; border-radius: 8px; font-size: 14px;
  border: 1px solid var(--border); background: var(--card);
}
.message-success { border-color: #bbf7d0; background: #f0fdf4; color: #166534; }
.message-error { border-color: #fecaca; background: #fef2f2; color: #991b1b; }

/* Users */
.user-actions { display: flex; gap: 8px; align-items: center; white-space: nowrap; }
.user-actions form { display: inline-flex; }
.checkbox-label { display: flex; align-items: center; gap: 8px; margin: 12px 0; }
.checkbox-label input { width: auto; }