/* ===== โทนสีพื้นฐาน ===== */
:root {
  --primary: #1a4f8b;
  --primary-dark: #113762;
  --primary-light: #2f6fae;
  --danger: #d93025;
  --warning: #e8710a;
  --success: #1e8e3e;
  --bg: #f2f5f9;
  --card: #ffffff;
  --text: #1c2733;
  --text-soft: #5a6b7c;
  --border: #dde4ec;
  --shadow: 0 1px 3px rgba(16, 42, 67, .12), 0 4px 12px rgba(16, 42, 67, .06);
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Sarabun", "Noto Sans Thai", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
}

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 15px; }

/* ===== Header ===== */
.app-header {
  background: linear-gradient(120deg, var(--primary-dark), var(--primary) 55%, var(--primary-light));
  color: #fff;
  padding: 16px 20px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 10px rgba(17, 55, 98, .35);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.18);
  border-radius: 10px;
  font-size: 22px;
}
.brand h1 { font-size: 18px; font-weight: 700; letter-spacing: .2px; }
.brand-sub { font-size: 12px; opacity: .85; }

/* ===== ปุ่ม ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  transition: transform .06s ease, box-shadow .15s ease, background .15s ease;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 2px 6px rgba(26,79,139,.35); }
.btn-primary:hover { background: var(--primary-light); }
.btn-add-top {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 2px 6px rgba(0,0,0,.2);
}
.btn-add-top:hover { background: #eef4fb; }
.btn-ghost { background: #eef1f6; color: var(--text); }
.btn-ghost:hover { background: #e2e7ef; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b3261e; }
.btn-icon { font-size: 16px; line-height: 1; }

.btn-sm {
  padding: 6px 10px;
  font-size: 13px;
  border-radius: 8px;
  gap: 4px;
}

/* ===== Container ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 16px 60px;
}

/* ===== สรุปคำเตือน ===== */
.warning-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.wc {
  background: var(--card);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  border-left: 4px solid var(--text-soft);
}
.wc-icon { font-size: 26px; }
.wc-text { display: flex; flex-direction: column; line-height: 1.25; }
.wc-label { font-size: 12px; color: var(--text-soft); }
.wc-value { font-size: 24px; font-weight: 800; }
.wc-overdue { border-left-color: var(--danger); }
.wc-overdue .wc-value { color: var(--danger); }
.wc-soon { border-left-color: var(--warning); }
.wc-soon .wc-value { color: var(--warning); }
.wc-active { border-left-color: var(--primary); }
.wc-active .wc-value { color: var(--primary); }
.wc-total { border-left-color: var(--text-soft); }

/* ===== รายงานสรุป ===== */
.report-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-top: 24px;
}
.report-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.report-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
  margin: 0;
}
.report-meta {
  font-size: 13px;
  color: var(--text-soft);
  background: #f0f4fa;
  padding: 3px 10px;
  border-radius: 999px;
}
.report-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}
.rc {
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.rc-label {
  font-size: 12px;
  color: var(--text-soft);
  font-weight: 600;
}
.rc-money {
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}
.rc-value {
  font-size: 22px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.rc-unit {
  font-size: 12px;
  color: var(--text-soft);
  white-space: nowrap;
}
.rc-total { background: #eef3fb; border-left: 4px solid var(--primary); }
.rc-total .rc-value { color: var(--primary); }
.rc-active { background: #fef6ee; border-left: 4px solid var(--warning); }
.rc-active .rc-value { color: var(--warning); }
.rc-returned { background: #eefbf0; border-left: 4px solid var(--success); }
.rc-returned .rc-value { color: var(--success); }
.rc-count { background: #f4f4f8; border-left: 4px solid var(--text-soft); }
.rc-count .rc-value { color: var(--text); }

.report-subhead {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--text);
}
.data-table-report { min-width: 360px; }
.data-table-report th { text-align: left; }
.data-table-report td:not(:first-child) { text-align: right; font-variant-numeric: tabular-nums; }
.data-table-report tbody tr:nth-child(even) { background: #fafbfd; }
.data-table-report tbody tr:hover { background: #eef3fb; }

.report-note {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-soft);
}

/* ===== แถบเครื่องมือ ===== */
.toolbar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  box-shadow: var(--shadow);
  margin-bottom: 12px;
}
.tb-search {
  flex: 1 1 280px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #f6f8fb;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
}
.search-icon { font-size: 15px; opacity: .6; }
.tb-search input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  min-width: 0;
}
.tb-filters { display: flex; gap: 10px; flex-wrap: wrap; }
.select {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 9px 12px;
  outline: none;
  color: var(--text);
}
.select:focus, .tb-search:focus-within { border-color: var(--primary); }

/* ===== รายการข้อมูล ===== */
.list-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--text-soft);
  gap: 10px;
  flex-wrap: wrap;
}

/* ===== ตาราง ===== */
.table-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
}
.data-table { width: 100%; border-collapse: collapse; min-width: 1040px; }
.data-table th {
  background: #edf2f8;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 700;
  text-align: left;
  padding: 12px 14px;
  white-space: nowrap;
  position: sticky;
  top: 0;
}
.data-table td {
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  vertical-align: middle;
  white-space: nowrap;
}
.data-table tbody tr { transition: background .1s ease; }
.data-table tbody tr:hover { background: #f6f9fd; }
.row-danger { background: #fdf0ee; }
.row-warning { background: #fef7ec; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }

.doc-no-cell {
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-soft);
  white-space: normal;
}

.data-table td.proj-name-cell { max-width: 280px; min-width: 180px; white-space: normal; word-break: break-word; }
.proj-name-cell .main { font-weight: 600; }
.proj-name-cell .doc-no {
  display: block;
  font-size: 12px;
  color: var(--text-soft);
  font-variant-numeric: tabular-nums;
}

/* Badge สถานะ */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.badge-type {
  background: #eaf1fb;
  color: var(--primary);
}
.badge-returned { background: #e8f5ec; color: var(--success); }
.badge-active { background: #e3f0ff; color: var(--primary); }
.badge-warn { background: #fff0e0; color: var(--warning); }
.badge-danger { background: #fde0dd; color: var(--danger); }

/* ปุ่มในตาราง */
.row-actions { display: flex; gap: 6px; align-items: center; }
.btn-action {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  padding: 5px 9px;
  font-size: 13px;
  transition: background .12s ease;
}
.btn-action:hover { background: #f1f4f9; }
.btn-action.return { color: var(--success); border-color: #bfdfc7; }
.btn-action.edit { color: var(--primary); border-color: #c2d6ee; }
.btn-action.del { color: var(--danger); border-color: #f0c4c1; }

/* ===== การ์ด (มือถือ) ===== */
.card-list { display: none; flex-direction: column; gap: 12px; }
.surety-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
  border-left: 4px solid var(--primary);
  animation: fadeIn .2s ease;
}
.surety-card.card-danger { border-left-color: var(--danger); background: #fffaf9; }
.surety-card.card-warning { border-left-color: var(--warning); background: #fffdf8; }
.surety-card.card-returned { border-left-color: var(--success); }
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
}
.card-title { font-weight: 700; font-size: 15px; line-height: 1.3; }
.card-projno { font-size: 13px; color: var(--text-soft); margin-top: 2px; }
.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
  margin: 10px 0;
}
.cg-item {}
.cg-label { font-size: 12px; color: var(--text-soft); }
.cg-value { font-weight: 600; font-size: 14px; font-variant-numeric: tabular-nums; }
.cg-value.due-soon { color: var(--warning); }
.cg-value.due-over { color: var(--danger); }
.cg-value.money { color: var(--primary-dark); }
.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  border-top: 1px dashed var(--border);
  padding-top: 10px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.surety-card .row-actions { margin-top: 10px; flex-wrap: wrap; }

/* ===== สถานะว่าง ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-soft);
}
.empty-icon { font-size: 56px; opacity: .5; margin-bottom: 10px; }
.empty-sub { font-size: 14px; }

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 30, 48, .55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 100;
  overflow-y: auto;
}
.modal {
  background: #fff;
  border-radius: 14px;
  width: 100%;
  max-width: 640px;
  max-height: calc(100vh - 40px);
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 40px rgba(0,0,0,.3);
  animation: slideUp .2s ease;
}
.modal-small { max-width: 420px; }
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 17px; }
.modal-close {
  background: none;
  border: none;
  font-size: 18px;
  color: var(--text-soft);
  padding: 4px 8px;
  border-radius: 8px;
}
.modal-close:hover { background: #f1f4f9; }
.modal-body { padding: 20px; overflow-y: auto; }
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
  flex-wrap: wrap;
}

/* ===== ฟอร์ม ===== */
.form-group { margin-bottom: 14px; flex: 1; min-width: 0; }
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row .form-group { margin-bottom: 14px; }
label { display: block; font-size: 13px; font-weight: 600; color: var(--text-soft); margin-bottom: 5px; }
.req { color: var(--danger); }
input[type="text"], input[type="date"], input[type="number"], select, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  outline: none;
  background: #fff;
  color: var(--text);
  transition: border-color .12s ease;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,79,139,.12); }
textarea { resize: vertical; }

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-dark);
  color: #fff;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
  z-index: 200;
  animation: fadeIn .2s ease;
  max-width: 90vw;
  text-align: center;
}
.toast.toast-success { background: var(--success); }
.toast.toast-error { background: var(--danger); }

/* ===== Delete modal ===== */
.delete-target {
  font-weight: 700;
  margin-top: 4px;
  color: var(--text);
}
.delete-warn { font-size: 13px; color: var(--danger); margin-top: 4px; }

/* ===== Animation ===== */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ===== Responsive: แท็บเล็ต / มือถือ ===== */
@media (max-width: 900px) {
  .warning-summary { grid-template-columns: repeat(2, 1fr); }
  .report-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .table-wrap { display: none; }
  .card-list { display: flex; }
  .brand h1 { font-size: 15px; }
  .brand-icon { width: 36px; height: 36px; font-size: 18px; }
  .btn-add-top { padding: 9px 14px; font-size: 14px; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .tb-filters .select { flex: 1; }
  .warning-summary { gap: 8px; }
  .wc { padding: 12px; gap: 8px; }
  .wc-icon { font-size: 22px; }
  .wc-value { font-size: 20px; }
  .form-row { flex-direction: column; gap: 0; }
  .modal { max-height: calc(100vh - 20px); }
  .modal-body { padding: 16px; }
}