:root {
  --navy: #1b3a57;
  --navy-dark: #122940;
  --accent: #c97b2e;
  --grey-bg: #f4f6f8;
  --border: #d7dde3;
  --text: #1f2a33;
  --muted: #6b7a85;
  --red: #b3362c;
  --green: #2f7d4f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  background: var(--grey-bg);
  color: var(--text);
}

.topbar {
  background: var(--navy);
  color: #fff;
  padding: 18px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.project-switcher {
  padding: 7px 10px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.4);
  background: var(--navy-dark);
  color: #fff;
  font-size: 0.85rem;
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  padding-left: 14px;
  border-left: 1px solid rgba(255,255,255,0.25);
}

.user-name { color: #c7d4de; }
.user-menu a { color: #fff; text-decoration: none; }
.user-menu a:hover { text-decoration: underline; }

.signin-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grey-bg);
}

.signin-box {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 40px;
  text-align: center;
  max-width: 400px;
}

.signin-box h1 { margin: 0 0 12px; font-size: 1.3rem; color: var(--navy-dark); }
.signin-box p { color: var(--muted); margin-bottom: 20px; }
.signin-box .btn { display: inline-block; text-decoration: none; }

.topbar-title h1 {
  margin: 0;
  font-size: 1.3rem;
}

.topbar-title p {
  margin: 2px 0 0;
  font-size: 0.85rem;
  color: #c7d4de;
}

.btn {
  border: none;
  border-radius: 4px;
  padding: 9px 16px;
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 600;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #b06a23; }
.btn-secondary { background: #fff; color: var(--navy); border: 1px solid var(--border); }
.btn-secondary:hover { background: #eef1f4; }
.btn-danger { background: #fff; color: var(--red); border: 1px solid var(--red); }
.btn-danger:hover { background: #fdecea; }

.summary {
  display: flex;
  gap: 14px;
  padding: 18px 28px 0;
}

.stat {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 20px;
  min-width: 110px;
  text-align: center;
}

.stat-num { display: block; font-size: 1.5rem; font-weight: 700; color: var(--navy); }
.stat-overdue .stat-num { color: var(--red); }
.stat-label { font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 16px 28px;
  align-items: center;
}

.toolbar input[type="search"] {
  flex: 1 1 240px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.toolbar select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #fff;
}

.checkbox-inline { font-size: 0.85rem; color: var(--muted); display: flex; align-items: center; gap: 5px; }

.table-wrap {
  margin: 0 28px 28px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow-x: auto;
}

table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }

th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  background: #eef2f5;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  color: var(--navy-dark);
}

th:hover { background: #e3e9ed; }

tbody tr { cursor: pointer; }
tbody tr:hover { background: #f7fafc; }

td.desc-col { max-width: 360px; }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-open { background: #fde8d8; color: var(--accent); }
.badge-closed { background: #dff0e4; color: var(--green); }
.badge-overdue { background: #fbe1df; color: var(--red); }

.empty-state { text-align: center; padding: 30px; color: var(--muted); }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 30, 40, 0.5);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 16px;
  overflow-y: auto;
}

.modal {
  background: #fff;
  border-radius: 8px;
  width: 100%;
  max-width: 720px;
  padding: 0;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 { margin: 0; font-size: 1.1rem; }

.icon-btn {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--muted);
  line-height: 1;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  padding: 20px 24px;
}

.form-grid label {
  display: flex;
  flex-direction: column;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--navy-dark);
  gap: 5px;
}

.form-grid .span-2 { grid-column: span 2; }

.form-grid input, .form-grid select, .form-grid textarea {
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 400;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  resize: vertical;
}

.evidence-notice {
  margin: 0 24px 16px;
  font-size: 0.85rem;
  color: var(--muted);
}

.evidence-section {
  padding: 0 24px 16px;
  border-top: 1px solid var(--border);
}

.evidence-section h3 {
  margin: 16px 0 4px;
  font-size: 1rem;
  color: var(--navy-dark);
}

.evidence-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.evidence-col h4 {
  margin: 8px 0 6px;
  font-size: 0.82rem;
  color: var(--navy-dark);
}

.evidence-list {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
  font-size: 0.82rem;
}

.evidence-list li { margin-bottom: 4px; }
.evidence-list a { color: var(--accent); text-decoration: none; }
.evidence-list a:hover { text-decoration: underline; }
.evidence-list .evidence-empty { color: var(--muted); font-style: italic; }

.evidence-col input[type="file"] {
  display: block;
  font-size: 0.78rem;
  margin-bottom: 6px;
  max-width: 100%;
}

@media (max-width: 640px) {
  .evidence-grid { grid-template-columns: 1fr; }
}

.modal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

.modal-footer-right { display: flex; gap: 10px; }

@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .span-2 { grid-column: span 1; }
  .topbar { flex-direction: column; align-items: flex-start; gap: 10px; }
}