/* =====================================================
   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;
}

/* ============================================================================
   v207 — Khách chưa đăng nhập: tìm kiếm + Đăng nhập/Đăng ký luôn hiện trên mobile
   - Luôn nằm ngay dưới hàng logo/giỏ/menu và phía trên nội dung trang (Coaching).
   - Ẩn bản sao nằm trong menu xổ xuống để không hiển thị trùng.
   ============================================================================ */
@media (max-width: 991.98px){
  .main-navbar .container{
    align-items:center;
  }
  .mobile-guest-tools{
    order:3;
    width:100%;
    flex:0 0 100%;
    display:grid!important;
    grid-template-columns:minmax(0,1fr) auto;
    align-items:center;
    gap:10px;
    padding:10px 0 2px;
    border-top:1px solid #edf2f7;
  }
  .mobile-guest-search{
    min-width:0;
    height:42px;
    display:grid;
    grid-template-columns:minmax(0,1fr) 48px;
    border:1px solid #bdd4fb;
    border-radius:13px;
    overflow:hidden;
    background:linear-gradient(135deg,#f4f9ff 0%,#fff8f2 100%);
    box-shadow:0 5px 16px rgba(37,99,235,.08);
  }
  .mobile-guest-search input{
    width:100%;
    min-width:0;
    height:40px;
    border:0!important;
    outline:0!important;
    box-shadow:none!important;
    background:transparent!important;
    padding:0 13px;
    font-size:16px;
    color:#183b68;
  }
  .mobile-guest-search button{
    width:48px;
    height:42px;
    border:0;
    border-left:1px solid rgba(37,99,235,.14);
    background:linear-gradient(135deg,#eaf4ff 0%,#fff0e5 100%);
    color:#1455aa;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:1.15rem;
  }
  .mobile-guest-auth{
    display:flex;
    align-items:center;
    gap:8px;
    white-space:nowrap;
  }
  .mobile-guest-login,
  .mobile-guest-register{
    height:42px;
    padding:0 14px;
    border-radius:12px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    text-decoration:none;
    font-weight:800;
    font-size:.9rem;
  }
  .mobile-guest-login{
    color:#1455aa;
    border:1px solid #9dc0f7;
    background:linear-gradient(135deg,#f5f9ff 0%,#fff 100%);
  }
  .mobile-guest-register{
    color:#a6480d;
    border:1px solid #ffc18f;
    background:linear-gradient(135deg,#fff7ef 0%,#ffe9d8 100%);
  }
  .guest-collapse-search,
  .guest-collapse-auth{
    display:none!important;
  }
  .main-navbar .navbar-collapse{
    order:4;
    flex-basis:100%;
  }
}

@media (max-width: 575.98px){
  .mobile-guest-tools{
    grid-template-columns:1fr;
    gap:8px;
    padding-top:9px;
  }
  .mobile-guest-auth{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:9px;
  }
  .mobile-guest-login,
  .mobile-guest-register{
    width:100%;
  }
}

/* v209 — chặn tuyệt đối bản đăng nhập/đăng ký trùng trong menu mobile */
@media (max-width:991.98px){
  #mainNav .guest-collapse-search,
  #mainNav .guest-collapse-auth,
  #mainNav .nav-login-btn,
  #mainNav .nav-register-btn{
    display:none!important;
  }
}


/* ============================================================================
   v221 — Mobile khách chưa đăng nhập
   - Không hiện sẵn thanh tìm kiếm.
   - Icon tìm kiếm nằm cạnh icon giỏ hàng; bấm mới mở ô tìm kiếm.
   - Giữ cụm Đăng nhập / Đăng ký phía trên nội dung.
   ============================================================================ */
@media (max-width: 991.98px){
  .nav-mobile-search-btn{
    width:42px;
    height:42px;
    padding:0;
    border:1px solid #bfd5f5;
    border-radius:50%;
    color:#174ea6;
    background:linear-gradient(135deg,#e9f2ff 0%,#dbeafe 58%,#ffe9d8 100%);
    box-shadow:0 5px 14px rgba(37,99,235,.10),0 4px 12px rgba(255,122,26,.07);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:1.1rem;
    flex:0 0 42px;
  }
  .nav-mobile-search-btn:hover,
  .nav-mobile-search-btn:focus{
    color:#0f4ea5;
    filter:brightness(1.02);
    box-shadow:0 0 0 3px rgba(37,99,235,.10),0 5px 14px rgba(37,99,235,.10);
  }
  .mobile-guest-search-panel{
    order:3;
    width:100%;
    flex:0 0 100%;
    padding:9px 0 0;
  }
  .mobile-guest-search-panel .mobile-guest-search{
    width:100%;
    margin:0;
  }
  .mobile-guest-tools{
    order:4;
    width:100%;
    flex:0 0 100%;
    display:block!important;
    padding:9px 0 2px;
    border-top:0;
  }
  .mobile-guest-auth{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:9px;
    width:100%;
  }
  .mobile-guest-login,
  .mobile-guest-register{
    width:100%;
  }
  .main-navbar .navbar-collapse{
    order:5;
  }
}