/* ธีม: น้ำเงินเข้ม (navy) + ทอง + เขียวมิ้นต์ — เข้าชุดโปสเตอร์ประชาสัมพันธ์ */
:root {
  --navy: #12385f;
  --navy-dark: #0c2a49;
  --gold: #b8912f;
  --gold-light: #e3c477;
  --teal: #2bb3a3;
  --teal-light: #e2f6f3;
  --bg: #f2f6fa;
  --card: #ffffff;
  --text: #1d2b3a;
  --muted: #64748b;
  --danger: #c0392b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Sarabun', 'Segoe UI', Tahoma, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
}

.container { max-width: 720px; margin: 0 auto; padding: 0 16px 48px; }
.container.wide { max-width: 1100px; }

/* header */
.site-header {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy) 60%, #1c4d7e);
  color: #fff;
  padding: 20px 0;
  border-bottom: 4px solid var(--gold);
  margin-bottom: 24px;
}
.site-header .container { padding-bottom: 0; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  font-size: 30px;
  background: rgba(255,255,255,.12);
  border: 2px solid var(--gold-light);
  border-radius: 14px;
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.brand h1 { margin: 0; font-size: 20px; font-weight: 700; }
.brand p { margin: 2px 0 0; font-size: 14px; color: var(--gold-light); }

/* notice */
.notice-bar {
  background: var(--teal-light);
  border: 1px solid var(--teal);
  border-left: 6px solid var(--teal);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 16px;
  display: flex; flex-direction: column; gap: 2px;
  font-size: 15px;
}
.alert-error {
  background: #fdecea;
  border: 1px solid var(--danger);
  border-radius: 10px;
  color: var(--danger);
  padding: 12px 16px;
  margin-bottom: 16px;
}

/* card + form */
.card {
  background: var(--card);
  border-radius: 14px;
  box-shadow: 0 2px 10px rgba(18,56,95,.08);
  padding: 24px;
  margin-bottom: 20px;
}
.card h2 {
  font-size: 17px;
  color: var(--navy);
  margin: 20px 0 10px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--gold-light);
}
.card h2:first-child { margin-top: 0; }

label { display: block; font-weight: 600; margin: 14px 0 4px; }
.req { color: var(--danger); }
.opt { color: var(--muted); font-weight: 400; font-size: 14px; }

input[type=text], input[type=search], input[type=date], input[type=password], select {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid #cbd5e1;
  border-radius: 10px;
  font: inherit;
  background: #fff;
}
input[type=text]:focus, input[type=search]:focus, input[type=date]:focus, input[type=password]:focus, select:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(43,179,163,.18);
}
input[type=file] {
  width: 100%;
  padding: 12px;
  border: 2px dashed var(--teal);
  border-radius: 10px;
  background: var(--teal-light);
  font: inherit;
}

/* แถวฟอร์มหลายช่อง */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; align-items: start; }
.form-row.cols-3 { grid-template-columns: 130px 1fr 1fr; }
.form-row.thirds { grid-template-columns: 1fr 1fr 1fr; }

.course-list { display: flex; flex-direction: column; gap: 8px; }
.course-item {
  display: flex; align-items: center; gap: 10px;
  margin: 0;
  padding: 10px 14px;
  border: 1.5px solid #dbe4ee;
  border-radius: 10px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.course-item:hover { border-color: var(--teal); background: var(--teal-light); }
.course-item input { width: 18px; height: 18px; accent-color: var(--teal); flex-shrink: 0; }
.course-item:has(input:checked) { border-color: var(--gold); background: #fdf6e5; }

.hint { color: var(--muted); font-size: 14px; margin: 6px 0; }
.hint.warn { color: var(--danger); font-weight: 600; }

.btn-primary, .btn-secondary {
  display: inline-block;
  border: none;
  border-radius: 10px;
  padding: 12px 22px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}
.btn-primary { background: var(--navy); color: #fff; margin-top: 18px; }
.btn-primary:hover { background: var(--navy-dark); }
.btn-secondary { background: #fff; color: var(--navy); border: 1.5px solid var(--navy); }
.btn-secondary:hover { background: #eef4fa; }
button.btn-primary:disabled { opacity: .6; cursor: wait; }
form .btn-primary { width: 100%; }

.footer-note { text-align: center; color: var(--muted); font-size: 14px; }

/* success */
.success-card { text-align: center; padding: 40px 24px; }
.success-icon { font-size: 56px; }
.success-card h2 { border: none; font-size: 24px; color: var(--teal); margin: 10px 0; }
.success-card .btn-primary { width: auto; }

/* admin: stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.stat-card {
  background: linear-gradient(150deg, var(--navy), #1c4d7e);
  color: #fff;
  border-radius: 14px;
  padding: 18px;
  text-align: center;
}
.stat-card.gold { background: linear-gradient(150deg, #8a6a1d, var(--gold)); }
.stat-num { font-size: 34px; font-weight: 700; line-height: 1.2; }
.stat-label { font-size: 14px; opacity: .9; }

.course-stats h2 { margin-top: 0; }
.course-stat-list { display: flex; flex-direction: column; gap: 8px; }
.course-stat { display: flex; justify-content: space-between; align-items: center; gap: 10px; }

/* admin: toolbar + table */
.toolbar {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  margin-bottom: 14px;
}
.toolbar input[type=search] { max-width: 260px; }
.toolbar select { max-width: 320px; width: auto; }
.toolbar .spacer { flex: 1; }
.toolbar .btn-primary { margin-top: 0; }

.table-card { padding: 8px; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { padding: 10px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid #e6edf5; }
th { background: var(--navy); color: #fff; font-weight: 600; white-space: nowrap; }
tr:hover td { background: #f6fafc; }
.nowrap { white-space: nowrap; }
.empty { text-align: center; color: var(--muted); padding: 30px; }

.badge {
  display: inline-block;
  background: var(--teal-light);
  color: #0f6e63;
  border: 1px solid var(--teal);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  padding: 2px 10px;
  margin: 2px 3px 2px 0;
}
.course-cell { max-width: 320px; }

/* สถานะการส่งเข้า สสจ. */
.badge.ok { background: #e6f7e9; color: #1e7a34; border-color: #3fae5a; }
.badge.warn { background: #fdf3e0; color: #946200; border-color: #d9a324; }
.badge.err { background: #fdecea; color: var(--danger); border-color: var(--danger); }
.badge.mut { background: #eef1f5; color: var(--muted); border-color: #cbd5e1; }
.pho-cell { max-width: 220px; }
.pho-cell form { margin: 4px 0 0; }
.pho-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.pho-card h2 { margin-top: 0; }
input.pho-pick, #check-all { width: 17px; height: 17px; accent-color: var(--teal); cursor: pointer; }
/* การ์ดตั้งค่าระบบ */
.settings-card h2 { margin-top: 0; }
.settings-card h3 {
  font-size: 15.5px;
  color: var(--navy);
  margin: 22px 0 8px;
}
.settings-card h3:first-of-type { margin-top: 14px; }
.course-manage-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.course-manage-item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 6px 10px;
  border: 1px solid #dbe4ee;
  border-radius: 10px;
}
.course-manage-item form { margin: 0; }
.course-add-form { display: flex; gap: 10px; align-items: center; }
.course-add-form input { flex: 1; }
.course-add-form .btn-secondary { white-space: nowrap; }

#pho-test-result {
  background: #f6f8fa;
  border: 1px solid #dbe4ee;
  border-radius: 8px;
  padding: 10px 12px;
  margin: 12px 0 0;
  font-size: 13px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.file-link { display: block; color: var(--navy); text-decoration: none; font-size: 14px; margin: 2px 0; }
.file-link:hover { text-decoration: underline; }

.actions { display: flex; gap: 6px; align-items: center; }
.actions form { margin: 0; }
.btn-small {
  display: inline-block;
  background: var(--navy); color: #fff;
  border: none; border-radius: 8px;
  padding: 5px 12px;
  font: inherit; font-size: 13.5px; font-weight: 600;
  text-decoration: none; cursor: pointer;
}
.btn-small:hover { background: var(--navy-dark); }
.btn-small.danger { background: #fff; color: var(--danger); border: 1.5px solid var(--danger); }
.btn-small.danger:hover { background: #fdecea; }

@media (max-width: 600px) {
  .brand h1 { font-size: 17px; }
  .card { padding: 18px; }
  .form-row, .form-row.cols-3, .form-row.thirds { grid-template-columns: 1fr; }
  .course-add-form { flex-direction: column; align-items: stretch; }
  .toolbar input[type=search], .toolbar select { max-width: none; width: 100%; }
  .toolbar .spacer { display: none; }
  .toolbar .btn-primary, .toolbar .btn-secondary { width: 100%; }
}