/* =====================================================
   MOBILE-ONLY STYLES
   Load via: <link media="(max-width: 991.98px)">
   ===================================================== */

/* Navbar mobile */
.main-navbar .navbar-brand { font-size: 1.05rem; }
.main-navbar .navbar-collapse {
  margin-top: 12px;
  padding-top: 8px;
  border-top: 1px solid #eef0f4;
}
.main-navbar .main-menu .nav-link {
  font-size: .92rem !important;
  padding: 10px 0 !important;
  text-transform: uppercase;
  font-weight: 700;
  color: #1a1a1a !important;
  border-bottom: 1px solid #f3f4f6;
}
.main-navbar .main-menu .nav-link:last-child {
  border-bottom: none;
}
.nav-search {
  max-width: 100% !important;
  margin-top: 10px;
  margin-bottom: 10px;
}
.nav-cta {
  display: block !important;
  text-align: center;
  margin-bottom: 10px !important;
}

/* Container padding nho hon mobile */
.container, .container-fluid {
  padding-left: 12px;
  padding-right: 12px;
}

/* Hero section mobile */
.hero-section h1, .hero-section h2 { font-size: 1.5rem !important; }
.hero-section p { font-size: .92rem !important; }

/* Card su dung 1 cot */
.course-card-v2 .course-title-v2 { font-size: .92rem; min-height: auto; }
.course-card-v2 .course-body-v2 { padding: 12px; }

/* About stats - 2 cot mobile */
.about-stats-band .about-stat-number { font-size: 2.25rem; }
.about-stats-band .about-stat-label  { font-size: .82rem; }

/* Contact - 1 cot, form padding nho */
.contact-form-card { padding: 20px 16px; }

/* Profile sidebar - hien thi nhu menu doc dau trang */
.profile-sidebar {
  margin-bottom: 16px;
}

/* My courses - card stack vertical */
.mc-card {
  flex-direction: column !important;
  gap: 12px !important;
  padding: 12px !important;
}
.mc-thumb { flex: 0 0 auto !important; width: 100% !important; }
.mc-content { width: 100%; }
.mc-actions {
  flex-direction: row !important;
  min-width: 0 !important;
  width: 100%;
}
.mc-btn { flex: 1; }
.mc-meta { font-size: .75rem; gap: 8px; }

/* Form input lon hon mobile */
.form-control, .form-select { font-size: 16px; } /* prevent iOS zoom */

/* Buttons full-width mobile */
.btn-block-mobile { width: 100%; }

/* Footer - stack columns */
.footer-mobile-stack > * { margin-bottom: 16px; }

/* Tables - scroll horizontal */
.table-responsive-mobile {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}