/* K-PASS Cloud — màn thi trên điện thoại (≤768px). PC không bị ảnh hưởng. */

/* Ẩn thanh user khi thi */
body:has(.app-layout-exam) .kpass-user-bar {
  display: none !important;
}

body:has(.app-layout-exam) .app-layout-exam {
  padding-top: 0 !important;
}

body:has(.app-layout-exam) {
  overflow-x: hidden;
}

/* Bỏ tên đề lặp trên mọi kích thước */
.app-layout-exam .exam-sticky-header .exam-set-name {
  display: none !important;
}

@media (max-width: 768px) {
  /* ---- Header xanh app: gọn ---- */
  .app-header-exam .exam-header-inner {
    padding: 0.4rem 0.65rem !important;
    gap: 0.5rem !important;
  }

  .app-header-exam .app-brand-title {
    font-size: 0.82rem !important;
    line-height: 1.2 !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 72vw;
  }

  .app-header-exam .exam-header-actions .btn {
    min-height: 34px !important;
    padding: 0.3rem 0.55rem !important;
    font-size: 0.78rem !important;
  }

  /* ---- Vùng nội dung ---- */
  .app-main-exam:has(.exam-screen) {
    padding: 0.25rem 0.5rem 0 !important;
    padding-bottom: calc(4rem + env(safe-area-inset-bottom, 0px)) !important;
    min-height: 100dvh !important;
  }

  .exam-screen {
    gap: 0.35rem !important;
  }

  .exam-body {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }

  /* ---- Thanh trạng thái: 1 dòng phẳng, không đè câu hỏi ---- */
  .exam-sticky-header {
    position: sticky;
    top: env(safe-area-inset-top, 0px);
    z-index: 30;
    margin-bottom: 0.25rem;
  }

  .exam-sticky-header .exam-status-bar.card {
    display: grid !important;
    grid-template-columns: 1fr auto !important;
    grid-template-rows: auto 3px !important;
    gap: 0.25rem 0.5rem !important;
    align-items: center !important;
    padding: 0.38rem 0.55rem !important;
    margin: 0 !important;
    border-radius: 8px !important;
    border: 1px solid #e2e8f0 !important;
    background: #fff !important;
    box-shadow: none !important;
  }

  .exam-status-main {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
  }

  .exam-status-meta {
    font-size: 0.82rem !important;
    font-weight: 600 !important;
    color: #0d47a1 !important;
    margin: 0 !important;
  }

  .exam-status-meta span:nth-child(n + 3) {
    display: none !important;
  }

  .exam-status-sep {
    display: none !important;
  }

  .exam-timer {
    grid-column: 2;
    grid-row: 1;
    margin: 0 !important;
    padding: 0.22rem 0.45rem !important;
    font-size: 0.8rem !important;
    border-radius: 6px !important;
    background: #f1f5f9 !important;
    border: 1px solid #e2e8f0 !important;
  }

  .exam-timer-icon {
    font-size: 0.75rem !important;
  }

  .exam-practice-badge {
    grid-column: 2;
    grid-row: 1;
    font-size: 0.72rem !important;
    padding: 0.2rem 0.4rem !important;
  }

  .exam-progress-wrap {
    grid-column: 1 / -1;
    grid-row: 2;
    margin: 0 !important;
  }

  .exam-progress-label {
    display: none !important;
  }

  .exam-progress-track {
    height: 3px !important;
  }

  /* ---- Thẻ câu hỏi: bỏ tiêu đề trùng "Câu X" ---- */
  .exam-question-card {
    padding: 0.65rem 0.7rem !important;
    border-radius: 8px !important;
    margin: 0 !important;
    border: 1px solid #e8edf3 !important;
    box-shadow: none !important;
  }

  .exam-question-head h3 {
    display: none !important;
  }

  .exam-question-head {
    margin-bottom: 0.35rem !important;
  }

  .exam-single-badge,
  .exam-multi-badge {
    font-size: 0.68rem !important;
    padding: 0.12rem 0.4rem !important;
  }

  .exam-question-text {
    font-size: 0.93rem !important;
    line-height: 1.45 !important;
    margin-bottom: 0.55rem !important;
    color: #1e293b !important;
  }

  .exam-options-list {
    gap: 0.3rem !important;
  }

  .exam-option {
    padding: 0.55rem 0.65rem !important;
    min-height: 42px !important;
    font-size: 0.88rem !important;
    line-height: 1.35 !important;
    border-radius: 8px !important;
    gap: 0.45rem !important;
  }

  .exam-option-letter {
    width: 1.5rem !important;
    height: 1.5rem !important;
    font-size: 0.78rem !important;
    flex-shrink: 0;
  }

  .exam-shortcut-hint {
    display: none !important;
  }

  /* ---- Thanh dưới: ← → to, Nộp bài vừa, ☆ nhỏ ---- */
  .app-layout-exam .exam-main-actions {
    position: fixed !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    z-index: 90 !important;
    margin: 0 !important;
    display: grid !important;
    grid-template-columns: minmax(3.6rem, 1.2fr) 5.25rem minmax(3.6rem, 1.2fr) 2.5rem !important;
    gap: 0.28rem !important;
    padding: 0.35rem 0.45rem calc(0.35rem + env(safe-area-inset-bottom, 0px)) !important;
    background: #fff !important;
    border-top: 1px solid #e2e8f0 !important;
    box-shadow: 0 -2px 10px rgba(15, 23, 42, 0.06) !important;
  }

  .app-layout-exam .exam-nav-actions {
    display: contents !important;
    flex: none !important;
    flex-wrap: nowrap !important;
    gap: 0 !important;
  }

  .app-layout-exam .exam-nav-fab.exam-nav-submit-mobile {
    grid-column: 2 !important;
    grid-row: 1 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    position: static !important;
    width: 100% !important;
    max-width: 5.25rem !important;
    height: 42px !important;
    min-height: 42px !important;
    max-height: 42px !important;
    margin: 0 auto !important;
    padding: 0 0.3rem !important;
    border-radius: 8px !important;
    font-size: 0.76rem !important;
    font-weight: 700 !important;
    line-height: 1.05 !important;
    color: #fff !important;
    background: linear-gradient(135deg, #c62828, #d32f2f) !important;
    border: none !important;
    box-shadow: none !important;
    white-space: nowrap;
    touch-action: manipulation;
    cursor: pointer;
  }

  .app-layout-exam .exam-nav-fab.exam-nav-submit-mobile:disabled {
    opacity: 0.55 !important;
    cursor: not-allowed;
  }

  .exam-status-meta.exam-status-meta--tap {
    cursor: pointer;
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 2px;
  }

  .app-layout-exam .exam-nav-fab:not(.exam-nav-submit-mobile),
  .app-layout-exam .exam-nav-fab.exam-nav-fab--inline:not(.exam-nav-submit-mobile) {
    position: static !important;
    grid-column: 2 !important;
    grid-row: 1 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: auto !important;
    height: 44px !important;
    min-height: 44px !important;
    max-height: 44px !important;
    margin: 0 !important;
    padding: 0 0.2rem !important;
    border-radius: 8px !important;
    font-size: 0.8rem !important;
    font-weight: 700 !important;
    line-height: 1 !important;
    background: #eef4fc !important;
    color: #0d47a1 !important;
    border: 1px solid #c5d9f2 !important;
    box-shadow: none !important;
    transform: none !important;
    white-space: nowrap;
    touch-action: manipulation;
  }

  .app-layout-exam .exam-nav-actions .btn,
  .app-layout-exam .exam-nav-actions .btn:first-child,
  .app-layout-exam .exam-nav-actions .btn:last-child,
  .app-layout-exam .exam-nav-actions .exam-mark-btn {
    flex: none !important;
    width: 100% !important;
    min-width: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 8px !important;
    box-shadow: none !important;
    transform: none !important;
    touch-action: manipulation;
    line-height: 1 !important;
    font-weight: 700 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }

  .app-layout-exam .exam-nav-actions .btn:first-child,
  .app-layout-exam .exam-nav-actions .btn:last-child {
    height: 48px !important;
    min-height: 48px !important;
    max-height: 48px !important;
    font-size: 1.35rem !important;
    align-self: end !important;
  }

  .app-layout-exam .exam-nav-fab.exam-nav-submit-mobile,
  .app-layout-exam .exam-nav-actions .exam-mark-btn {
    align-self: center !important;
  }

  .app-layout-exam .exam-nav-actions .exam-mark-btn {
    height: 42px !important;
    min-height: 42px !important;
    max-height: 42px !important;
    font-size: 1.1rem !important;
  }

  .app-layout-exam .exam-nav-actions .btn:first-child {
    grid-column: 1 !important;
    grid-row: 1 !important;
    background: #f8fafc !important;
    border: 1px solid #dde3ec !important;
    color: #0d47a1 !important;
  }

  .app-layout-exam .exam-nav-actions .btn:last-child {
    grid-column: 3 !important;
    grid-row: 1 !important;
    background: #1565c0 !important;
    border: 1px solid #0d47a1 !important;
    color: #fff !important;
  }

  .app-layout-exam .exam-nav-actions .exam-mark-btn {
    grid-column: 4 !important;
    grid-row: 1 !important;
    flex: none !important;
    background: #f8fafc !important;
    border: 1px solid #dde3ec !important;
    color: #64748b !important;
  }

  .app-layout-exam .exam-nav-actions .exam-mark-btn.is-marked {
    background: #fff8e1 !important;
    border-color: #ffb74d !important;
    color: #e65100 !important;
  }

  .app-layout-exam .exam-nav-actions .btn:disabled {
    opacity: 0.35 !important;
  }

  .app-layout-exam .exam-nav-actions .btn:hover,
  .app-layout-exam .exam-nav-actions .btn:last-child:hover {
    transform: none !important;
    box-shadow: none !important;
  }

  /* Bảng câu — bottom sheet */
  .exam-sidebar {
    position: fixed !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    top: auto !important;
    width: 100% !important;
    max-height: min(70dvh, calc(100dvh - 4rem)) !important;
    border-radius: 12px 12px 0 0 !important;
    z-index: 100 !important;
    transform: translateY(100%);
    transition: transform 0.2s ease;
  }

  .exam-sidebar.is-open {
    transform: translateY(0);
  }

  .exam-sidebar-backdrop {
    z-index: 95 !important;
  }

  .q-nav-grid {
    grid-template-columns: repeat(6, 1fr) !important;
    gap: 0.25rem !important;
  }

  .q-nav-btn {
    height: 34px !important;
    font-size: 0.76rem !important;
  }
}

@media (max-width: 768px) and (orientation: landscape) {
  .app-main-exam:has(.exam-screen) {
    padding-bottom: calc(3.2rem + env(safe-area-inset-bottom, 0px)) !important;
  }

  .exam-main-actions {
    padding: 0.22rem 0.4rem calc(0.22rem + env(safe-area-inset-bottom, 0px)) !important;
  }

  .exam-nav-actions .btn,
  .exam-nav-fab {
    height: 36px !important;
    min-height: 36px !important;
    max-height: 36px !important;
  }
}