:root {
  --ui-bg: #edf1f6;
  --ui-surface: #ffffff;
  --ui-surface-muted: #f7f9fc;
  --ui-border: #d0d9e5;
  --ui-text: #1a2940;
  --ui-text-soft: #4a5a73;
  --ui-brand-900: #123c66;
  --ui-brand-700: #1f5f98;
  --ui-brand-500: #2f78b7;
  --ui-success: #067647;
  --ui-danger: #b42318;
  --ui-warning: #b54708;
  --ui-info: #155eef;
  --ui-radius: 12px;
  --ui-shadow: 0 12px 30px rgba(10, 32, 63, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: linear-gradient(180deg, #f7fbff 0%, var(--ui-bg) 100%);
  color: var(--ui-text);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.45;
}

a { color: var(--ui-brand-700); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: min(1320px, calc(100% - 28px));
  margin: 24px auto;
}

.card {
  background: var(--ui-surface);
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius);
  box-shadow: var(--ui-shadow);
  padding: 22px;
}

h1, h2, h3 {
  margin: 0 0 12px;
  color: var(--ui-brand-900);
  letter-spacing: .1px;
}

h1 { font-size: clamp(1.45rem, 2vw, 2rem); }
h2 { font-size: clamp(1.1rem, 1.5vw, 1.4rem); }

.ui-page-header {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--ui-border);
  padding-bottom: 10px;
}

.ui-meta {
  color: var(--ui-text-soft);
  font-size: .93rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="file"],
select,
textarea {
  width: 100%;
  border: 1px solid #b8c7da;
  border-radius: 10px;
  background: #fff;
  color: var(--ui-text);
  padding: 10px 12px;
  font-size: .95rem;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(46, 114, 186, 0.28);
  border-color: var(--ui-brand-500);
}

label { font-weight: 600; color: var(--ui-brand-900); }
small { color: var(--ui-text-soft); }

.btn,
a.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  background: linear-gradient(180deg, #2f74b5 0%, #1d5f9e 100%);
  color: #fff;
  padding: 9px 16px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover,
a.btn:hover { filter: brightness(1.03); text-decoration: none; }

.btn-secondary {
  background: #fff;
  border-color: #9cb2cb;
  color: #1f4772;
}

.btn-success { background: linear-gradient(180deg, #17a160 0%, #0c7f47 100%); }
.btn-danger { background: linear-gradient(180deg, #d64545 0%, #b42318 100%); }

.ui-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.ui-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--ui-border);
  border-radius: 10px;
}

.ui-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

.ui-table thead th,
.ui-table-wrap .ui-table thead th {
  position: sticky;
  top: 0;
  background: #1e3d63;
  color: #fff;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .3px;
  padding: 10px;
  border: 1px solid #2f5d92;
  white-space: nowrap;
}

.ui-table td,
.ui-table th,
.ui-table-wrap .ui-table td,
.ui-table-wrap .ui-table th {
  border: 1px solid #d9e2ef;
  padding: 9px 10px;
  vertical-align: top;
}

.ui-table tbody tr:nth-child(even),
.ui-table-wrap .ui-table tbody tr:nth-child(even) {
  background: #f8fbff;
}

.ui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  background: linear-gradient(180deg, #2f74b5 0%, #1d5f9e 100%);
  color: #fff;
  padding: 9px 16px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.ui-btn:hover {
  filter: brightness(1.03);
  text-decoration: none;
}

.ui-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
}

.ui-detail-item {
  background: #f8fafd;
  border: 1px solid #d8e1ee;
  border-radius: 10px;
  padding: 10px 12px;
}

.ui-detail-item-full {
  grid-column: 1 / -1;
}

.ui-detail-label {
  display: block;
  font-size: .8rem;
  color: #4e6280;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: .35px;
}

.ui-detail-value {
  color: #10243f;
}

.ui-status {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: .79rem;
  border: 1px solid;
  font-weight: 700;
}
.ui-status-preqc { background: #ecf4ff; border-color: #9bbbf4; color: #1d4f9f; }
.ui-status-under-review { background: #e8f7ff; border-color: #87c7e4; color: #08577a; }
.ui-status-revision { background: #fff6e5; border-color: #efc36e; color: #8f4b02; }
.ui-status-accepted { background: #eafbf1; border-color: #7cd8a6; color: #0f7a41; }
.ui-status-rejected { background: #feefef; border-color: #f1a4a4; color: #aa1f1f; }

.ui-alert,
.ui-alert-error,
.ui-alert-success {
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 12px;
  border: 1px solid;
}
.ui-alert-error { background: #fff3f3; color: #8c1d18; border-color: #efb6b2; }
.ui-alert-success { background: #effcf4; color: #0d6c3f; border-color: #98ddb7; }

.ui-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.ui-kpi {
  border: 1px solid var(--ui-border);
  border-radius: 10px;
  background: linear-gradient(180deg, #f8fbff 0%, #edf3fa 100%);
  padding: 12px;
}

.ui-kpi .label { color: var(--ui-text-soft); font-size: .82rem; text-transform: uppercase; letter-spacing: .4px; }
.ui-kpi .value { color: var(--ui-brand-900); font-size: 1.35rem; font-weight: 700; }

.ui-pill-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 16px;
}

.ui-pill-nav a {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border: 1px solid #8aadd1;
  border-radius: 999px;
  font-size: .88rem;
  color: #174e84;
  background: #f0f7ff;
  text-decoration: none;
}

.ui-pill-nav a:hover { background: #e9f2ff; }

.ui-topbar {
  background: linear-gradient(180deg, #3c7db7 0%, #2f72ad 100%);
  color: #fff;
  border-bottom: 1px solid #2d6297;
}

.ui-topbar a {
  color: #fff;
}

.ui-tab-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ui-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 7px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 600;
  font-size: .88rem;
}

.ui-tab:hover {
  text-decoration: none;
  background: rgba(255, 255, 255, 0.18);
}

@media (max-width: 900px) {
  .card { padding: 16px; }
  .ui-page-header { align-items: flex-start; }
  .ui-table thead th { font-size: .74rem; }
  .ui-detail-grid { grid-template-columns: 1fr; }
}