/* ธีมหน้าบ้าน: เหลืองเป็นหลัก ม่วงเน้นจุดเด่น (อัตลักษณ์ มรภ.บ้านสมเด็จเจ้าพระยา) */
:root {
  --bsru-yellow: #ffc426;
  --bsru-yellow-soft: #fff7e0;
  --bsru-yellow-dark: #e8a800;
  --bsru-purple: #5b2d90;
  --bsru-purple-dark: #45216e;
  --bsru-purple-soft: #f1eaf9;
}

body {
  font-family: 'Prompt', sans-serif;
  background: #fffdf5;
  color: #333;
}

/* ---------- header ---------- */
.site-header {
  background: linear-gradient(135deg, var(--bsru-yellow) 0%, #ffd75e 100%);
  border-bottom: 4px solid var(--bsru-purple);
}
.site-header .brand-title {
  color: var(--bsru-purple-dark);
  font-weight: 600;
  line-height: 1.3;
}
.site-header .brand-sub {
  color: #6b5300;
  font-size: 0.85rem;
}
.navbar-front {
  background: var(--bsru-purple);
}
.navbar-front .nav-link {
  color: #fff;
  font-size: 0.95rem;
}
.navbar-front .nav-link.active,
.navbar-front .nav-link:hover {
  color: var(--bsru-yellow);
}

/* ---------- ปุ่มเมนูหลักหน้าแรก ---------- */
.menu-card {
  display: block;
  border: none;
  border-radius: 1rem;
  padding: 1.5rem 1rem;
  text-align: center;
  text-decoration: none;
  color: var(--bsru-purple-dark);
  background: #fff;
  border: 2px solid var(--bsru-yellow);
  box-shadow: 0 3px 10px rgba(91, 45, 144, .08);
  transition: transform .15s, box-shadow .15s;
  height: 100%;
}
.menu-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(91, 45, 144, .18);
  color: var(--bsru-purple);
}
.menu-card .menu-icon {
  font-size: 2.5rem;
  color: var(--bsru-purple);
  margin-bottom: .5rem;
}
.menu-card .menu-title {
  font-size: 1.15rem;
  font-weight: 600;
}
.menu-card.menu-primary {
  background: var(--bsru-purple);
  border-color: var(--bsru-purple);
  color: #fff;
}
.menu-card.menu-primary .menu-icon { color: var(--bsru-yellow); }
.menu-card.menu-primary:hover { background: var(--bsru-purple-dark); color: #fff; }

/* ---------- ปุ่ม ---------- */
.btn-bsru {
  background: var(--bsru-purple);
  border-color: var(--bsru-purple);
  color: #fff;
  font-weight: 500;
}
.btn-bsru:hover, .btn-bsru:focus {
  background: var(--bsru-purple-dark);
  border-color: var(--bsru-purple-dark);
  color: #fff;
}
.btn-bsru-yellow {
  background: var(--bsru-yellow);
  border-color: var(--bsru-yellow);
  color: var(--bsru-purple-dark);
  font-weight: 600;
}
.btn-bsru-yellow:hover, .btn-bsru-yellow:focus {
  background: var(--bsru-yellow-dark);
  border-color: var(--bsru-yellow-dark);
  color: #fff;
}

/* ---------- กล่องประกาศ ---------- */
.announce-box {
  background: var(--bsru-yellow-soft);
  border: 1px solid var(--bsru-yellow);
  border-left: 5px solid var(--bsru-purple);
  border-radius: .5rem;
}

.section-title {
  color: var(--bsru-purple-dark);
  font-weight: 600;
  border-bottom: 3px solid var(--bsru-yellow);
  display: inline-block;
  padding-bottom: .25rem;
}

/* หัวข้อกลุ่มในฟอร์ม */
.form-section-head {
  background: var(--bsru-purple);
  color: #fff;
  padding: .5rem .75rem;
  border-radius: .375rem;
  font-weight: 500;
  border-left: 5px solid var(--bsru-yellow);
}

/* ---------- step wizard (มือถือ) ---------- */
.steps-bar {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
.steps-bar .step {
  flex: 1;
  text-align: center;
  position: relative;
  font-size: .8rem;
  color: #999;
}
.steps-bar .step .dot {
  width: 34px;
  height: 34px;
  line-height: 34px;
  border-radius: 50%;
  background: #e9e2f3;
  color: var(--bsru-purple);
  font-weight: 600;
  margin: 0 auto .35rem;
}
.steps-bar .step.active { color: var(--bsru-purple-dark); font-weight: 600; }
.steps-bar .step.active .dot { background: var(--bsru-yellow); color: var(--bsru-purple-dark); }
.steps-bar .step.done .dot { background: var(--bsru-purple); color: #fff; }
.steps-bar .step:not(:first-child)::before {
  content: '';
  position: absolute;
  top: 17px;
  left: -50%;
  width: 100%;
  height: 3px;
  background: #e9e2f3;
  z-index: -1;
}
.steps-bar .step.active:not(:first-child)::before,
.steps-bar .step.done:not(:first-child)::before { background: var(--bsru-yellow); }

/* ---------- timeline สถานะ (หน้าตรวจสอบผล) ---------- */
.status-timeline { list-style: none; padding-left: 0; }
.status-timeline li {
  position: relative;
  padding: 0 0 1.5rem 2.25rem;
  border-left: 3px solid var(--bsru-yellow);
  margin-left: 1rem;
}
.status-timeline li:last-child { border-left-color: transparent; padding-bottom: 0; }
.status-timeline li .tl-dot {
  position: absolute;
  left: -12px;
  top: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bsru-purple);
  border: 4px solid var(--bsru-yellow);
}
.status-timeline li .tl-title { font-weight: 600; color: var(--bsru-purple-dark); }
.status-timeline li .tl-date { font-size: .85rem; color: #888; }

/* ---------- การ์ดหลักสูตร ---------- */
.program-card {
  border: 1px solid #eee;
  border-top: 4px solid var(--bsru-purple);
  border-radius: .75rem;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.05);
}
.program-card .card-title { color: var(--bsru-purple-dark); font-weight: 600; }

/* ---------- กล่องช่องทางติดต่อ (ปัญหาการสมัคร) ---------- */
.apply-contact {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  background: var(--bsru-purple-soft);
  border: 1.5px solid var(--bsru-purple);
  border-radius: .75rem;
  padding: .85rem 1rem;
  color: var(--bsru-purple-dark);
}
.apply-contact .contact-icon {
  font-size: 1.6rem;
  color: var(--bsru-purple);
  background: var(--bsru-yellow);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-footer {
  background: var(--bsru-purple-dark);
  color: #d9cdea;
  font-size: .85rem;
}

/* mobile-first: ขยาย touch target บนมือถือ */
@media (max-width: 576px) {
  .btn { padding-top: .6rem; padding-bottom: .6rem; }
  .form-control, .form-select { min-height: 44px; }
}