:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --column-bg: #f2f5fa;
  --border: #e0e6ee;
  --border-strong: #cdd6e1;
  --text: #27303c;
  --muted: #6b7785;
  --primary: #2f6fed;
  --primary-dark: #2558c4;
  --primary-soft: #e9effd;
  --ring: 0 0 0 3px rgba(47, 111, 237, 0.16);
  --accent-todo: #8494a7;
  --accent-progress: #d9822b;
  --accent-done: #1f9d61;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-1: 0 1px 2px rgba(16, 24, 40, 0.05), 0 1px 3px rgba(16, 24, 40, 0.06);
  --shadow-2: 0 4px 14px rgba(16, 24, 40, 0.08);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    radial-gradient(900px 520px at 88% -10%, rgba(47, 111, 237, 0.06), transparent 60%),
    radial-gradient(720px 420px at -8% 28%, rgba(47, 111, 237, 0.05), transparent 60%);
  background-attachment: fixed;
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

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

a:focus-visible,
.btn:focus-visible,
.link-btn:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid rgba(47, 111, 237, 0.45);
  outline-offset: 2px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }
.brand::before {
  content: "";
  width: 19px;
  height: 19px;
  background: url("../favicon.67e7c000a4a9.svg") center / contain no-repeat;
}

.topnav { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }

.topnav a {
  padding: 6px 11px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  transition: background-color 0.12s ease, color 0.12s ease;
}
.topnav a:hover { background: var(--surface-2); color: var(--primary); text-decoration: none; }

.role-badge {
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  background: var(--primary-soft);
  color: var(--primary-dark);
}
.role-badge.member { background: #e6f4ec; color: #1e7d3c; }

.username { color: var(--muted); font-size: 14px; padding: 0 2px; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 24px 48px;
}

.page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 18px;
}
.page-head h1 { margin: 0; font-size: 23px; letter-spacing: -0.01em; }

h1 { font-size: 23px; letter-spacing: -0.01em; }

.messages { list-style: none; margin: 0 0 16px; padding: 0; }
.msg {
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  font-size: 14px;
  border: 1px solid transparent;
}
.msg-success { background: #e6f4ec; border-color: #cde9d6; color: #1e7d3c; }
.msg-error { background: #fdecea; border-color: #f5d3ce; color: #b3261e; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.12s ease, border-color 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { text-decoration: none; background: var(--surface-2); border-color: #bcc8d6; }
.btn:active { background: #eef2f6; }

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 1px 2px rgba(37, 88, 196, 0.35);
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-primary:active { background: #204da8; }
.btn-primary:focus-visible { outline: none; box-shadow: var(--ring); }

.btn-small { min-height: 30px; padding: 0 10px; font-size: 13px; }

.link-btn {
  border: none;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  padding: 6px 11px;
  border-radius: var(--radius-sm);
  transition: background-color 0.12s ease, color 0.12s ease;
}
.link-btn:hover { background: var(--surface-2); color: var(--primary-dark); }

.inline-form { display: inline; margin: 0; }

.auth-card {
  max-width: 420px;
  margin: 48px auto 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-1);
}
.auth-card h1 { margin: 0 0 18px; font-size: 20px; }
.auth-card .btn { margin-top: 6px; }
.auth-card p { margin: 14px 0 0; font-size: 14px; }

.field-label {
  display: block;
  margin-bottom: 14px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
}
.field-label input,
.field-label select,
.field-label textarea,
input[type="text"], input[type="password"], textarea, select {
  display: block;
  width: 100%;
  margin-top: 5px;
  min-height: 38px;
  padding: 8px 11px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font: inherit;
  background: #fff;
  color: var(--text);
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}
textarea { min-height: 84px; resize: vertical; }
input:hover, select:hover, textarea:hover { border-color: #b7c3d2; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--ring);
}
.move-form select, .inline-form select { display: inline-block; width: auto; margin-top: 0; }

.error { display: block; color: #b3261e; font-size: 13px; margin-top: 3px; }
.muted { color: var(--muted); }

.board-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.board-card {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  color: var(--text);
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}
.board-card:hover { text-decoration: none; border-color: var(--primary); box-shadow: var(--shadow-2); }
.board-card strong { font-size: 16px; }

.board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  align-items: start;
}

.column {
  background: var(--column-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  min-width: 0;
  box-shadow: var(--shadow-1);
}
.column h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 650;
  margin: 0 0 12px;
  padding: 2px 2px 10px;
  border-bottom: 1px solid #e4eaf2;
}
.column h2::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-strong);
  flex: none;
}
.col-todo h2::before { background: var(--accent-todo); }
.col-in_progress h2::before { background: var(--accent-progress); }
.col-done h2::before { background: var(--accent-done); }
.column.drag-over { outline: 2px dashed var(--primary); outline-offset: -2px; }

.count {
  margin-left: auto;
  padding: 1px 8px;
  border-radius: var(--radius-pill);
  background: #e7edf5;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.cards { display: grid; gap: 8px; }

.task-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px 11px;
  background: var(--surface);
  box-shadow: var(--shadow-1);
  overflow-wrap: break-word;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}
.task-card:hover { border-color: var(--border-strong); box-shadow: var(--shadow-2); }
.task-card.draggable { cursor: grab; }
.task-card.dragging { opacity: 0.5; }
.task-card strong { display: block; font-size: 14.5px; font-weight: 600; line-height: 1.35; }
.task-card .desc { margin: 5px 0 0; font-size: 13px; color: var(--muted); white-space: normal; }
.task-card .meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
}
.task-card .meta .muted::before { content: "·"; margin-right: 6px; color: var(--border-strong); }
.task-card .author { color: var(--primary-dark); font-weight: 600; }
.task-card .move-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 9px;
  padding-top: 9px;
  border-top: 1px solid #edf1f6;
}
.task-card .move-form select { min-height: 30px; padding: 3px 8px; font-size: 13px; }
.task-card .status-select { flex: 1 1 120px; }
.empty-col {
  margin: 0;
  padding: 14px 8px;
  font-size: 13px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
}

.users-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.users-table th, .users-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.users-table th {
  background: var(--surface-2);
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}
.users-table tbody tr:last-child td { border-bottom: none; }
.users-table tbody tr { transition: background-color 0.12s ease; }
.users-table tbody tr:hover { background: var(--surface-2); }
.users-table select { width: auto; display: inline-block; margin: 0; min-height: 32px; padding: 3px 8px; font-size: 14px; }

@media (max-width: 900px) {
  .container { padding: 18px 16px 40px; }
  .topbar { padding: 10px 16px; }
}

@media (max-width: 760px) {
  .board { grid-template-columns: 1fr; }
  .topnav { gap: 2px; }
  .auth-card { margin-top: 24px; padding: 22px; }
}

@media (max-width: 480px) {
  .page-head h1 { font-size: 20px; }
  .brand { font-size: 15px; }
  .task-card .move-form .btn { flex: 1 1 100%; }
}