/* ── Reset & base ───────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --brand:       #1a4f8a;
  --brand-dark:  #13376b;
  --accent:      #e8a020;
  --bg:          #f4f6fa;
  --surface:     #ffffff;
  --border:      #dde2ec;
  --text:        #1e2736;
  --muted:       #6b7590;
  --danger:      #d0392a;
  --success:     #1f8c5e;
  --warning:     #d4780a;
  --radius:      8px;
  --shadow:      0 2px 12px rgba(0,0,0,.08);
}

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.55;
}

/* ── Top nav ────────────────────────────────────────────────────────────────── */
.navbar {
  background: var(--brand);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 32px;
  height: 60px;
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
}
.navbar .logo {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: .5px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #fff;
}
.navbar .logo img { height: 34px; }
.navbar nav { margin-left: auto; display: flex; gap: 8px; }
.navbar nav a {
  color: rgba(255,255,255,.85);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius);
  font-size: .9rem;
  transition: background .15s;
}
.navbar nav a:hover, .navbar nav a.active {
  background: rgba(255,255,255,.15);
  color: #fff;
}

/* ── Page container ─────────────────────────────────────────────────────────── */
.page { max-width: 1100px; margin: 32px auto; padding: 0 20px; }
.page-sm { max-width: 780px; margin: 32px auto; padding: 0 20px; }

/* ── Card ───────────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 32px;
  margin-bottom: 24px;
}
.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--brand);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Forms ──────────────────────────────────────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
}
.form-grid .full { grid-column: 1 / -1; }

.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group label { font-size: .85rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.form-group input,
.form-group select,
.form-group textarea {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 12px;
  font-size: .95rem;
  color: var(--text);
  background: #fafbfd;
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(26,79,138,.12);
  background: #fff;
}
.form-group textarea { resize: vertical; min-height: 80px; }

/* File input */
.file-input-wrapper {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s;
  background: #fafbfd;
}
.file-input-wrapper:hover { border-color: var(--brand); }
.file-input-wrapper input[type="file"] { display: none; }
.file-input-wrapper .file-label { font-size: .9rem; color: var(--muted); }
.file-input-wrapper .file-label span { color: var(--brand); font-weight: 600; }
.file-name { font-size: .85rem; color: var(--success); margin-top: 6px; font-weight: 500; }

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s, transform .1s;
  text-decoration: none;
}
.btn:hover { opacity: .88; }
.btn:active { transform: scale(.97); }
.btn-primary   { background: var(--brand);   color: #fff; }
.btn-success   { background: var(--success); color: #fff; }
.btn-danger    { background: var(--danger);  color: #fff; }
.btn-warning   { background: var(--warning); color: #fff; }
.btn-outline   { background: transparent; color: var(--brand); border: 1.5px solid var(--brand); }
.btn-sm        { padding: 5px 12px; font-size: .82rem; }
.btn-icon      { padding: 7px; border-radius: 50%; }

/* ── Badges / status pills ──────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .3px;
  white-space: nowrap;
}
.badge-draft           { background: #eef0f5; color: #5a6480; }
.badge-pending         { background: #fff3cd; color: #8a6000; }
.badge-approved        { background: #d4f5e7; color: #145f40; }
.badge-rejected        { background: #fde8e6; color: #9b2118; }
.badge-low             { background: #eaf7f0; color: #1a7a4e; }
.badge-medium          { background: #fff7e0; color: #8a5e00; }
.badge-high            { background: #fde8e6; color: #9b2118; }
.badge-reviewer        { background: #e8f0fb; color: #1a4f8a; }
.badge-approver        { background: #e8f5fe; color: #0a6ea0; }
.badge-signatory       { background: #f3eaff; color: #6020a0; }

/* ── Table ──────────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
thead tr { background: var(--brand); color: #fff; }
thead th { padding: 11px 14px; text-align: left; font-weight: 600; white-space: nowrap; }
tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
tbody tr:hover { background: #f0f4fb; }
tbody td { padding: 11px 14px; vertical-align: middle; }
tbody td a { color: var(--brand); font-weight: 600; text-decoration: none; }
tbody td a:hover { text-decoration: underline; }

/* ── Approver list ──────────────────────────────────────────────────────────── */
.approver-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  background: #fafbfd;
}
.approver-seq {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.approver-info { flex: 1; }
.approver-name { font-weight: 600; font-size: .95rem; }
.approver-email { font-size: .82rem; color: var(--muted); }
.approver-comments { font-size: .83rem; color: var(--muted); margin-top: 4px; font-style: italic; }

/* ── Page header ────────────────────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}
.page-header h1 { font-size: 1.5rem; font-weight: 700; }
.page-header .sub { font-size: .9rem; color: var(--muted); margin-top: 2px; }

/* ── Filters bar ────────────────────────────────────────────────────────────── */
.filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.filters input,
.filters select {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: .88rem;
  background: var(--surface);
  color: var(--text);
}
.filters input:focus, .filters select:focus {
  outline: none;
  border-color: var(--brand);
}

/* ── Alerts ─────────────────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: .9rem;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.alert-error   { background: #fde8e6; color: var(--danger); border: 1px solid #f5c2be; }
.alert-success { background: #d4f5e7; color: var(--success); border: 1px solid #a8e8c8; }
.alert-info    { background: #e8f0fb; color: var(--brand);   border: 1px solid #b8d0f0; }

/* ── Detail field grid ──────────────────────────────────────────────────────── */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.detail-field label { font-size: .78rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; display: block; margin-bottom: 3px; }
.detail-field .val  { font-size: .95rem; color: var(--text); word-break: break-word; }

/* ── Action modal ───────────────────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px 32px;
  width: 90%;
  max-width: 480px;
  box-shadow: 0 8px 40px rgba(0,0,0,.18);
}
.modal h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 16px; color: var(--brand); }
.modal textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  font-size: .93rem;
  resize: vertical;
  min-height: 90px;
  margin-bottom: 16px;
}
.modal textarea:focus { outline: none; border-color: var(--brand); }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; }

/* ── Toast ──────────────────────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 28px; right: 28px;
  background: var(--text);
  color: #fff;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-size: .9rem;
  z-index: 200;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .25s, transform .25s;
  max-width: 360px;
  pointer-events: none;
}
#toast.show { opacity: 1; transform: translateY(0); }
#toast.toast-error   { background: var(--danger); }
#toast.toast-success { background: var(--success); }

/* ── Misc ───────────────────────────────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--border); margin: 24px 0; }
.text-muted { color: var(--muted); font-size: .88rem; }
.empty-state { text-align: center; padding: 40px 20px; color: var(--muted); font-size: .95rem; }
.spin { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .navbar { padding: 0 16px; }
  .card  { padding: 20px 16px; }
  .page, .page-sm { padding: 0 12px; }
}