/* ========================================== */
/* ===  RESPONSIVE MOBILE LAYOUT  =========== */
/* ========================================== */

@media (max-width: 768px) {
  .desktop-only-flex { display: none !important; }
  .mobile-only-flex { display: flex !important; }
  .desktop-only { display: none !important; }
  .mobile-only { display: block !important; }

  /* Hide sidebar on mobile */
  .sidebar { display: none !important; }

  /* Swipe overlay fullscreen on mobile (no sidebar) */
  .swipe-overlay { left: 0; }

  /* Full width content */
  .main-content {
    margin-left: 0 !important;
    padding-bottom: 72px; /* space for bottom nav */
  }

  .app-header {
    padding: 12px 16px;
    top: 0;
  }

  .app-title-container h2 { font-size: 1.05rem; }
  .header-date { display: none; }

  .app-content { padding: 16px 12px; }

  /* Show bottom nav */
  .mobile-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: rgba(255,255,255,0.88);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-top: 1px solid rgba(229,229,234,0.6);
    box-shadow: 0 -4px 16px rgba(15,23,42,0.07);
    height: 68px;
    padding: 6px 0 env(safe-area-inset-bottom, 8px);
    justify-content: space-around;
    align-items: center;
  }

  .mob-nav-btn {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition-normal);
    padding: 4px 0;
  }

  .mob-nav-btn i { font-size: 1.25rem; }
  .mob-nav-btn span { font-size: 0.62rem; font-weight: 700; }
  .mob-nav-btn.active { color: var(--primary); }

  .mobile-more-overlay {
    align-items: flex-end;
    justify-content: center;
    z-index: 420;
    padding: 0 12px calc(78px + env(safe-area-inset-bottom, 0px));
    background: rgba(15, 23, 42, 0.28);
  }

  .mobile-more-sheet {
    width: 100%;
    max-width: 420px;
    border-radius: 24px;
    padding: 10px 14px 16px;
    box-shadow: var(--shadow-lg);
    animation: ckSheetUp 0.24s cubic-bezier(0.32, 0.72, 0, 1);
  }

  .mobile-more-grip {
    width: 38px;
    height: 4px;
    margin: 0 auto 12px;
    border-radius: 999px;
    background: var(--border-color);
  }

  .mobile-more-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 2px 12px;
  }

  .mobile-more-head h3 {
    margin: 0;
    font-size: 1.02rem;
    font-weight: 800;
    color: var(--text-main);
  }

  .mobile-more-close {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    background: var(--bg-card);
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
  }

  .mobile-more-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .mobile-more-item {
    min-height: 72px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 800;
    text-align: left;
  }

  .mobile-more-item i {
    width: 34px;
    height: 34px;
    border-radius: 14px;
    background: var(--primary-light);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    font-size: 1.1rem;
  }

  .mobile-more-item:active { transform: scale(0.98); }

  /* แถบแท็บภายในห้อง — โชว์บนมือถือด้วย (bottom nav มีแค่เช็คชื่อ/คะแนน
     ทางเข้านักเรียนกับการเข้าเรียนอยู่ที่แถบนี้) ย่อให้เตี้ยลงเพื่อประหยัดพื้นที่แนวตั้ง */
  .ck-classtab-bar { gap: 2px; padding: 3px; border-radius: calc(var(--radius-btn) + 3px); width: 100%; }
  /* ยกเว้นหน้าเช็คชื่อ — การ์ดปัดต้องการพื้นที่แนวตั้งมากที่สุด เลยตัดแถบแท็บออกเฉพาะมือถือ
     (ออกจากหน้านี้ไปแท็บอื่น: กด "กลับ" → แตะการ์ดห้อง) เดสก์ท็อปยังมีแถบเหมือนเดิม
     positionClassTabThumb กรอง offsetWidth>0 อยู่แล้ว แถบที่ซ่อนจึงไม่กวนการวัด */
  #checkin-classtab-holder { display: none !important; }
  .ck-classtab { flex: 1; justify-content: center; padding: 6px 4px; font-size: 0.78rem; gap: 4px; }
  .ck-classtab i { font-size: 0.85rem; }
  .ck-classtab-thumb { top: 3px; bottom: 3px; border-radius: var(--radius-btn); }

  /* หน้านักเรียน (มือถือ) — หัวจอกระชับ + ย้ายปุ่ม +/⋮ ขึ้นหัว, เหลือไอคอน (ซ่อนข้อความยาว) */
  /* padding เท่าหัวจอหน้าอื่น (9px 12px) ไม่งั้นหน้านักเรียนสูง 58 แทนที่จะเป็น 52 */
  #web-screen-students .rep-detail-header-card { padding: 9px 8px !important; margin-bottom: 12px !important; }
  #web-screen-students .hdr-title-text { display: none; }
  /* ขนาดชื่อห้องคุมที่เดียวใน 06-attendance (แพทเทิร์นหัวจอ) — กฎเก่าที่นี่ตัดออกกันขัดกันเอง */
  .students-head-controls { width: 100%; gap: 8px; }
  .students-head-controls .form-control { max-width: 100% !important; flex: 1 1 100%; }
  .ck-hdr-btn {
    width: 38px; height: 38px; border-radius: var(--radius-btn); flex-shrink: 0;
    border: 1px solid var(--border-color); background: var(--bg-card); color: var(--text-secondary);
    display: flex; align-items: center; justify-content: center; font-size: 1.15rem; cursor: pointer;
  }
  .ck-hdr-btn.add { background: var(--primary-light); color: var(--primary); border-color: var(--primary-light-border); }
  .ck-hdr-btn:active { transform: scale(0.94); }

  /* ซ่อนแถว "พบ X คน + ปุ่ม" — ย้ายฟังก์ชันขึ้นหัวจอแล้ว → รายชื่อเลื่อนขึ้น */
  #web-screen-students .students-action-row { display: none !important; }

  /* รายชื่อนักเรียนบนมือถือ: กรอบรวมแบบหน้าคะแนน */
  #web-students-content-area {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
  }
  #web-students-list.student-card-grid { gap: 10px; }

  /* Responsive grids */
  .dashboard-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .report-grid-2col { grid-template-columns: 1fr; }
  .report-grid-3col { grid-template-columns: 1fr; }
  .settings-grid { grid-template-columns: 1fr; }
  .class-cards-grid { grid-template-columns: 1fr; }
  .ck-class-actions button { gap: 3px; padding-inline: 2px; font-size: 0.68rem; }
  .ck-class-actions button i { font-size: 0.88rem; }
  .ck-classroom-filterbar { align-items: stretch; flex-direction: column; gap: 10px; padding: 12px; }
  .ck-classroom-filter-controls { width: 100%; gap: 8px; }
  .ck-classroom-filter-field { flex: 1; align-items: stretch; flex-direction: column; gap: 4px; }
  .ck-classroom-filter-field select { width: 100%; min-width: 0; }

  /* Modal กลางจอบนมือถือ (มีขอบจาก padding ของ overlay) */
  .bottom-sheet {
    width: 100%;
    border-radius: var(--radius-lg);
  }

  /* modal นักเรียน (สรุป/แก้ไข) → bottom sheet ติดล่าง เต็มกว้าง มนบน สไลด์ขึ้น */
  #modal-student-summary, #modal-student-detail {
    align-items: flex-end;
    padding: 0;
  }
  #modal-student-summary .bottom-sheet, #modal-student-detail .bottom-sheet {
    width: 100%;
    max-width: 100%;
    border-radius: 22px 22px 0 0;
    max-height: 90vh;
    padding-bottom: calc(24px + env(safe-area-inset-bottom));
    animation: ckSheetUp 0.26s cubic-bezier(0.32, 0.72, 0, 1);
  }

  /* Swipe overlay adjustments */
  .swipe-card { width: 280px; padding: 24px 20px 20px; }
  .swipe-btn i { width: 50px; height: 50px; font-size: 1.15rem; }
  .swipe-action-buttons { gap: 8px; padding: 12px 16px 20px; }
  .s-pill { padding: 8px 10px; min-width: 60px; }
  .s-pill-num { font-size: 1.3rem; }
  .s-pill-label { font-size: 0.72rem; }
}

@media (max-width: 420px) {
  .dashboard-stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .stat-card { padding: 14px; }
  .stat-num { font-size: 1.3rem; }
  .swipe-card { width: 260px; }
  .swipe-summary-pills { gap: 4px; }
  .s-pill { padding: 7px 8px; }
  .s-pill-num { font-size: 1.2rem; }
  .s-pill-label { font-size: 0.68rem; }
}


/* ========================================== */
/* ===  TOAST NOTIFICATION  ================= */
/* ========================================== */
.ck-toast-container {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 99999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}

.ck-toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  background: #1c1c1e;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  animation: toastIn 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
  max-width: 90vw;
  white-space: normal;
  text-align: center;
}

.ck-toast.success { background: #1c1c1e; }
.ck-toast.error   { background: #3a1a1a; border: 1px solid var(--color-absent); }
.ck-toast.warning { background: #2e2000; border: 1px solid #f59e0b; }
.ck-toast.info    { background: #0d2040; border: 1px solid var(--color-leave); }
.ck-toast.fade-out { animation: toastOut 0.3s ease forwards; }

@keyframes toastIn  { from { opacity:0; transform:translateY(12px) scale(0.95); } to { opacity:1; transform:translateY(0) scale(1); } }
@keyframes toastOut { from { opacity:1; transform:translateY(0); } to { opacity:0; transform:translateY(-8px); } }

/* ========================================== */
/* ===  CONFIRM DIALOG  ===================== */
/* ========================================== */
.ck-confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  z-index: 99998;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}

.ck-confirm-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  width: 320px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.25s ease;
}

.ck-confirm-icon { font-size: 2rem; text-align: center; margin-bottom: 12px; }
.ck-confirm-title { font-size: 1rem; font-weight: 800; color: var(--text-main); text-align: center; margin-bottom: 8px; }
.ck-confirm-msg { font-size: 0.82rem; color: var(--text-muted); text-align: center; line-height: 1.6; margin-bottom: 20px; }
.ck-confirm-btns { display: flex; gap: 10px; }
.ck-confirm-btns button { flex: 1; padding: 10px; border-radius: var(--radius-btn); font-size: 0.88rem; font-weight: 700; cursor: pointer; border: 1px solid var(--border-color); background: var(--bg-card); color: var(--text-main); transition: var(--transition-normal); }
.ck-confirm-btns .ck-confirm-ok { background: var(--color-absent); color: #fff; border-color: var(--color-absent); }
.ck-confirm-btns .ck-confirm-ok.safe { background: var(--primary); border-color: var(--primary); }

/* Dropzone */
.dropzone.dragover {
  background-color: var(--primary-light) !important;
  border-color: var(--primary) !important;
  transform: scale(1.02);
}

/* Spinner animation for OCR */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* OCR name item */
.ocr-name-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  transition: background 0.15s;
  cursor: pointer;
}
.ocr-name-item:hover {
  background: var(--bg-light);
}
.ocr-name-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}
.ocr-name-item .ocr-name-text {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 600;
}
.ocr-name-item .ocr-name-no {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 28px;
  text-align: center;
}

/* ========================================== */
/* TABLET (769–1024px) — บีบ sidebar + grid ให้พอดีจอกลาง */
/* ========================================== */
@media (min-width: 769px) and (max-width: 1024px) {
  .sidebar { --sidebar-rail-width: 72px; --sidebar-open-width: 236px; width: var(--sidebar-rail-width); padding: 16px 8px; }
  .sidebar:hover, .sidebar:has(:focus-visible) { width: var(--sidebar-open-width); }
  .sidebar.is-click-collapsed { width: var(--sidebar-rail-width); }
  .sidebar-brand .sidebar-logo { height: 50px !important; }
  .sidebar-menu .nav-item { font-size: 0.85rem; padding: 9px 12px; gap: 12px; }
  .main-content { margin-left: 72px; }
  /* overlay เช็คชื่อต้องเยื้องเท่า main-content ไม่งั้นสลับแท็บแล้วหน้าเลื่อน 42px */
  .swipe-overlay { left: 72px; }
  .app-content { padding: 18px; }
  /* กรอบในหน้าเช็คชื่อต้องเท่า padding ของ .app-content (18px) ไม่ใช่ 24px ของจอใหญ่ */
  .swipe-class-card { margin: 18px 18px 0; }
  .swipe-compact-header { margin: 0 18px; }
  .swipe-schedule-warning { margin: 16px 18px 0; }
  .report-grid-3col { grid-template-columns: 1fr 1fr; }
}

/* ========================================== */
/* PRINT / PDF — รายงานการเข้าเรียนหน้าสะอาด    */
/* ========================================== */
#ck-print-header { display: none; }
#ck-print-header .ck-print-brand { font-size: 0.75rem; font-weight: 700; color: var(--primary); letter-spacing: 0.02em; }
#ck-print-header .ck-print-title { font-size: 1.5rem; font-weight: 800; margin: 4px 0 6px; color: #111; }
#ck-print-header .ck-print-sub { font-size: 0.85rem; color: #555; border-bottom: 2px solid #111; padding-bottom: 10px; margin-bottom: 18px; }

@media print {
  @page { size: A4 portrait; margin: 14mm; }
  html, body { background: #fff !important; }
  #app-sidebar, .sidebar, #mobile-bottom-nav, .mobile-bottom-nav, #help-fab,
  .rep-detail-header-card, #web-screen-reports .report-tabs,
  .rep-date-label-btn, #rep-calendar-popup, .term-tl-edit { display: none !important; }
  .main-content { margin-left: 0 !important; padding: 0 !important; }
  .app-content { padding: 0 !important; }
  .card { box-shadow: none !important; break-inside: avoid; page-break-inside: avoid; }
  #ck-print-header { display: block !important; }
  * { -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important; }
}

/* ========================================== */
/* เครื่องมือช่วยสอน (Teaching Tools Hub)        */
/* ========================================== */
.tools-hub-sheet {
  width: 620px; max-width: 100%;
  border: 4px solid var(--loud-ink);
  border-radius: 32px;
  background:
    radial-gradient(circle at 18% 12%, rgba(18,184,134,.13), transparent 28%),
    radial-gradient(circle at 86% 16%, rgba(255,138,61,.12), transparent 24%),
    var(--bg-card);
  box-shadow: 0 12px 0 var(--loud-ink), 0 24px 44px rgba(15,23,42,.18);
}
.tools-hub-sheet .modal-header h3 {
  font-size: clamp(1.35rem, 2.8vw, 1.8rem);
  color: var(--loud-ink);
}
.tools-hub-sheet .modal-header h3 i { color: var(--loud-accent) !important; }
.tools-hub-sheet .btn-text {
  width: 46px; height: 46px; border-radius: 50%;
  border: 3px solid var(--loud-ink);
  background: #fff5ec;
  color: var(--loud-warm-sh);
  box-shadow: 0 5px 0 var(--loud-ink);
  display: inline-flex; align-items: center; justify-content: center;
  transition: transform .1s ease, box-shadow .1s ease, background .12s ease;
}
.tools-hub-sheet .btn-text:hover {
  background: var(--loud-warm);
  color: #fff;
}
.tools-hub-sheet .btn-text:active {
  transform: translateY(5px);
  box-shadow: none;
}
.tools-hub-sheet .btn-text i {
  font-size: 1.25rem;
}
.tools-hub-sub { margin: -4px 0 18px; font-size: 0.9rem; font-weight: 700; color: var(--text-muted); }
.tools-hub-foot {
  width: fit-content; margin: 18px auto 0; padding: 7px 18px;
  border: 2px dashed rgba(18,59,49,.22); border-radius: 99px;
  font-size: 0.82rem; font-weight: 800; color: var(--text-muted); text-align: center;
  background: rgba(233,246,239,.62);
}
.tools-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(132px, 1fr)); gap: 14px; }
.teaching-tools-head { margin-bottom: 16px; padding: 22px 24px; }
.teaching-tools-head h2 { margin: 8px 0 4px; font-size: 1.35rem; }
.teaching-tools-head p { margin: 0; color: var(--text-muted); font-size: 0.9rem; }
.teaching-tools-context { display: flex; gap: 14px; margin-bottom: 18px; padding: 16px 18px; }
.teaching-tools-context label { flex: 1; display: flex; flex-direction: column; gap: 6px; font-size: 0.8rem; font-weight: 800; color: var(--text-secondary); }
.teaching-tools-context select { width: 100%; }
.tool-card {
  --tool-accent: var(--primary);
  --tool-accent-dark: var(--primary-hover);
  --tool-soft: var(--primary-light);
  position: relative;
  min-height: 136px;
  background: linear-gradient(180deg, #fff 0%, var(--tool-soft) 100%);
  border: 3px solid var(--tool-accent-dark);
  border-radius: 22px;
  padding: 18px 12px 16px;
  text-align: center;
  cursor: pointer;
  overflow: hidden;
  box-shadow: 0 7px 0 var(--tool-accent-dark), 0 10px 18px rgba(15,23,42,.08);
  transition: transform .12s ease, box-shadow .12s ease, filter .12s ease;
}
.tool-card::before {
  content: ""; position: absolute; inset: 9px 9px auto auto;
  width: 34px; height: 34px; border-radius: 50%;
  background: rgba(255,255,255,.58);
}
.tool-card:hover { transform: translateY(-4px); box-shadow: 0 11px 0 var(--tool-accent-dark), 0 18px 28px rgba(15,23,42,.12); }
.tool-card:active { transform: translateY(5px); box-shadow: 0 2px 0 var(--tool-accent-dark), 0 7px 12px rgba(15,23,42,.10); }
.tool-card.ready { color: var(--tool-accent-dark); }
.tool-card.soon {
  cursor: default;
  filter: grayscale(.15);
  box-shadow: 0 5px 0 var(--tool-accent-dark);
}
.tool-card.soon::after {
  content: ""; position: absolute; inset: 0;
  background: repeating-linear-gradient(-45deg, transparent 0 12px, rgba(255,255,255,.45) 12px 20px);
  pointer-events: none;
}
.tool-card.soon:hover { transform: none; box-shadow: 0 5px 0 var(--tool-accent-dark); }
.tool-card.soon:active { transform: none; box-shadow: 0 5px 0 var(--tool-accent-dark); }
.tool-card .tool-icon {
  position: relative;
  width: 58px; height: 58px; border-radius: 18px; display: inline-flex;
  align-items: center; justify-content: center; margin-bottom: 12px; font-size: 28px;
  border: 3px solid var(--tool-accent-dark);
  box-shadow: 0 5px 0 var(--tool-accent-dark);
  color: #fff;
  background: var(--tool-accent);
}
.tool-card .tool-name {
  position: relative;
  font-size: 1.05rem; font-weight: 800; color: var(--tool-accent-dark);
  line-height: 1.18;
}
.tool-card .tool-desc {
  position: relative;
  font-size: 0.78rem; font-weight: 700; color: rgba(47,47,46,.62);
  margin-top: 5px; line-height: 1.35;
}
.tool-soon-badge {
  position: absolute; top: 10px; right: 10px; z-index: 1;
  font-size: 0.68rem; background: #fff;
  border: 2px solid var(--tool-accent-dark); color: var(--tool-accent-dark);
  padding: 3px 9px; border-radius: 20px; font-weight: 800;
}
.tool-card.tint-green  { --tool-accent:#12b886; --tool-accent-dark:#0b7a5c; --tool-soft:#e9f6ef; }
.tool-card.tint-blue   { --tool-accent:#3b82f6; --tool-accent-dark:#185fa5; --tool-soft:#e6f1fb; }
.tool-card.tint-amber  { --tool-accent:#f5b638; --tool-accent-dark:#9a640c; --tool-soft:#fff3d8; }
.tool-card.tint-coral  { --tool-accent:#ff6f5c; --tool-accent-dark:#b93a2b; --tool-soft:#ffe7e2; }
.tool-card.tint-purple { --tool-accent:#7161ef; --tool-accent-dark:#4f46b8; --tool-soft:#eeedfe; }
.tool-card.tint-pink   { --tool-accent:#e85b8d; --tool-accent-dark:#993556; --tool-soft:#fbeaf0; }
.tool-card.tint-gray   { --tool-accent:#a6a49c; --tool-accent-dark:#6d6a63; --tool-soft:#f1efe8; }
.tool-card.soon {
  --tool-accent: #b8b8b0;
  --tool-accent-dark: #8c8c84;
  --tool-soft: #f5f4ef;
}

@media (max-width: 520px) {
  .tools-hub-sheet { border-width: 3px; border-radius: 26px; box-shadow: 0 8px 0 var(--loud-ink), 0 18px 32px rgba(15,23,42,.16); }
  .tools-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; }
  .teaching-tools-head { padding: 16px; }
  .teaching-tools-context { flex-direction: column; gap: 10px; padding: 14px; }
  .tool-card { min-height: 126px; border-radius: 18px; padding: 16px 9px 14px; }
  .tool-card .tool-icon { width: 50px; height: 50px; border-radius: 16px; font-size: 24px; }
  .tool-card .tool-name { font-size: .96rem; }
  .tool-card .tool-desc { font-size: .72rem; }
}

/* ==========================================================
   จอฉาย — เครื่องมือหน้าชั้นทุกตัวใช้ภาษาเดียวกัน
   ========================================================== */
#random-name-overlay,
#tool-timer-overlay,
#tool-countdown-overlay,
#tool-number-overlay,
#tool-group-overlay {
  padding: 0;
  align-items: stretch;
  justify-content: stretch;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.tl-screen, .rn-fullscreen {
  --tl-frame-ink: var(--loud-ink);
  position: relative; width: 100vw; height: 100dvh; min-height: 100dvh; box-sizing: border-box;
  background:
    radial-gradient(circle at 50% 42%, rgba(255,255,255,.34), transparent 34%),
    var(--loud-surface);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: clamp(16px, 3vh, 30px); padding: 26px 20px 30px;
  overflow-x: hidden; overflow-y: auto;
}
.tl-screen::before, .rn-fullscreen::before {
  content: "";
  position: absolute;
  inset: clamp(16px, 2.2vw, 34px);
  border: 1px solid color-mix(in srgb, var(--tl-frame-ink) 18%, transparent);
  border-radius: clamp(18px, 2.2vw, 32px);
  box-shadow:
    inset 0 0 0 7px color-mix(in srgb, #fff 22%, transparent),
    0 16px 48px color-mix(in srgb, var(--tl-frame-ink) 10%, transparent);
  pointer-events: none;
}
.tl-screen::after, .rn-fullscreen::after {
  content: "CLASSKRU  ·  เครื่องมือช่วยสอน";
  position: absolute;
  top: clamp(25px, 3.4vw, 52px);
  left: 50%;
  transform: translateX(-50%);
  color: color-mix(in srgb, var(--tl-frame-ink) 52%, transparent);
  font-size: clamp(.58rem, .9vw, .78rem);
  font-weight: 800;
  letter-spacing: .12em;
  white-space: nowrap;
  pointer-events: none;
}
.tl-close, .rn-close {
  position: absolute; top: 18px; right: 18px; width: 48px; height: 48px; border-radius: 50%;
  border: 3px solid var(--loud-ink); background: #fff; color: var(--loud-ink);
  font-size: 1.3rem; cursor: pointer; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 0 var(--loud-ink);
}
.tl-close:active, .rn-close:active { transform: translateY(4px); box-shadow: none; }

.tl-stage-actions {
  position: absolute; top: 18px; left: 18px; z-index: 1;
  display: flex; align-items: center; gap: 8px;
}
.tl-stage-btn, .tl-fullscreen-btn {
  font-family: inherit; text-decoration: none;
  display: inline-flex; align-items: center; line-height: 1;
  font-size: 0.95rem; font-weight: 800; color: var(--loud-ink); background: #fff;
  border: 3px solid var(--loud-ink); border-radius: 99px; padding: 11px 20px; cursor: pointer;
  box-shadow: 0 4px 0 var(--loud-ink);
}
.tl-fullscreen-btn { gap: 6px; }
.tl-stage-btn:active, .tl-fullscreen-btn:active { transform: translateY(4px); box-shadow: none; }
.tl-stage-btn.is-live { background: var(--loud-accent); color: #fff; }
@media (max-width: 520px) {
  .tl-stage-actions { top: 14px; left: 14px; gap: 6px; }
  .tl-stage-btn, .tl-fullscreen-btn { font-size: .78rem; padding: 9px 12px; border-width: 2px; }
}

.tl-kicker {
  display: inline-flex; align-items: center; background: var(--loud-surface-2);
  border: 3px solid var(--loud-ink); border-radius: 99px; padding: 7px 22px;
  font-size: clamp(0.95rem, 2.2vw, 1.35rem); font-weight: 800; color: var(--loud-ink);
}

.tl-plate {
  background: #fff; border: 5px solid var(--loud-ink); border-radius: clamp(20px, 3vw, 34px);
  box-shadow: 0 10px 0 var(--loud-ink); padding: clamp(18px, 4vh, 46px) clamp(26px, 6vw, 72px);
  text-align: center; max-width: 94vw;
}
.tl-digits {
  font-size: clamp(3.6rem, 17vw, 13rem); font-weight: 800; color: var(--loud-ink);
  line-height: .95; font-variant-numeric: tabular-nums; letter-spacing: 0;
}
.tl-plate.is-final { border-color: var(--loud-warm); box-shadow: 0 10px 0 var(--loud-warm-sh); }
.tl-plate.is-final .tl-digits { color: var(--loud-warm-sh); }
.tl-plate.is-done { border-color: var(--loud-warm); box-shadow: 0 10px 0 var(--loud-warm-sh); animation: tl-flash .5s steps(2) 6; }
@keyframes tl-flash { 50% { background: var(--loud-warm); } }
@media (prefers-reduced-motion: reduce) { .tl-plate.is-done { animation: none; background: #fff5ec; } }

.tl-btns { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.tl-btn {
  font-family: inherit; font-size: clamp(1rem, 2.4vw, 1.5rem); font-weight: 800; color: #fff;
  background: var(--loud-accent); border: none; border-radius: 99px;
  padding: clamp(11px, 1.6vh, 17px) clamp(30px, 5vw, 54px); cursor: pointer;
  box-shadow: 0 7px 0 var(--loud-accent-sh); transition: transform .07s, box-shadow .07s;
}
.tl-btn:active { transform: translateY(7px); box-shadow: none; }
.tl-btn.is-warm { background: var(--loud-warm); box-shadow: 0 7px 0 var(--loud-warm-sh); }
.tl-btn:disabled { cursor: default; }

.tl-chips, .tl-seg-wrap, .rn-seg-wrap { display: flex; gap: 9px; flex-wrap: wrap; justify-content: center; }
.tl-chip, .tl-seg, .rn-seg {
  font-family: inherit; font-size: clamp(0.82rem, 1.5vw, 1rem); font-weight: 700; color: var(--loud-ink);
  background: #fff; border: 3px solid var(--loud-ink); border-radius: 99px;
  padding: 8px 20px; cursor: pointer;
}
.tl-chip.on, .tl-seg.on, .rn-seg.on { background: var(--loud-accent); color: #fff; }
.tl-seg b, .rn-seg b { font-weight: 800; margin-left: 4px; opacity: .85; }

.tl-custom-row {
  display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap;
  color: var(--loud-ink); font-size: clamp(0.86rem, 1.5vw, 1rem); font-weight: 800;
}
.tl-custom-row label {
  display: inline-flex; align-items: center; gap: 8px; background: #fff;
  border: 3px solid var(--loud-ink); border-radius: 99px; padding: 7px 16px;
}
.tl-custom-row input {
  width: 76px; font-family: inherit; font-size: 1rem; font-weight: 800; text-align: center;
  color: var(--loud-ink); background: var(--loud-surface); border: 2px solid var(--loud-ink);
  border-radius: 14px; padding: 5px 6px;
}
.tl-mini-btn {
  font-family: inherit; font-size: 0.95rem; font-weight: 800; color: #fff; background: var(--loud-accent);
  border: none; border-radius: 99px; padding: 10px 18px; cursor: pointer;
  box-shadow: 0 5px 0 var(--loud-accent-sh);
}
.tl-mini-btn:active { transform: translateY(5px); box-shadow: none; }

.tl-range { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; }
.tl-range label { display: flex; align-items: center; gap: 8px; font-size: 1rem; font-weight: 700; color: var(--loud-ink); }
.tl-range input {
  width: 92px; font-family: inherit; font-size: 1.1rem; font-weight: 800; text-align: center;
  color: var(--loud-ink); background: #fff; border: 3px solid var(--loud-ink); border-radius: 14px; padding: 7px 6px;
}

.tl-groups {
  display: flex; gap: 12px; flex-wrap: wrap; justify-content: center;
  max-width: 96vw; padding-bottom: 8px;
}
.tl-empty { font-size: 1.1rem; font-weight: 700; color: var(--loud-ink); opacity: .55; padding: 22px; }
.tl-group { border: 4px solid var(--loud-ink); border-radius: 18px; box-shadow: 0 6px 0 var(--loud-ink); background: #fff; min-width: 152px; overflow: hidden; }
.tl-group-h {
  display: flex; align-items: baseline; justify-content: space-between; gap: 14px;
  padding: 8px 16px; font-size: clamp(1rem, 1.6vw, 1.3rem); font-weight: 800;
  background: var(--g-bg, #eee); color: var(--g-fg, #333); border-bottom: 3px solid var(--loud-ink);
}
.tl-group-h b { font-weight: 800; opacity: .72; white-space: nowrap; font-variant-numeric: tabular-nums; }
@keyframes tl-pop { from { transform: translateY(16px) scale(.94); opacity: 0; } to { transform: none; opacity: 1; } }
.tl-group.is-in { animation: tl-pop .34s cubic-bezier(.2,.9,.3,1.25) both; }
@media (prefers-reduced-motion: reduce) { .tl-group.is-in { animation: none; } }
.tl-group ul { list-style: none; margin: 0; padding: 10px 16px 13px; }
.tl-group li { font-size: clamp(1.05rem, 2vw, 1.6rem); font-weight: 700; color: var(--loud-ink); line-height: 1.45; }
.tl-group.g0 { --g-bg: #eaf3de; --g-fg: #3b6d11; }
.tl-group.g1 { --g-bg: #e1f5ee; --g-fg: #0f6e56; }
.tl-group.g2 { --g-bg: #e6f1fb; --g-fg: #185fa5; }
.tl-group.g3 { --g-bg: #fbeaf0; --g-fg: #993556; }
.tl-group.g4 { --g-bg: #faeeda; --g-fg: #854f0b; }
.tl-group.g5 { --g-bg: #eeedfe; --g-fg: #534ab7; }

.rn-fullscreen {
  --tl-frame-ink: var(--rn-fg, var(--loud-ink));
  background:
    radial-gradient(circle at 50% 42%, rgba(255,255,255,.34), transparent 34%),
    var(--rn-bg, var(--loud-surface));
  transition: background .3s ease;
}
.rn-stage { text-align: center; }
.rn-reveal-no {
  width: clamp(74px, 9vw, 104px); height: clamp(74px, 9vw, 104px); margin: 0 auto 20px; border-radius: 50%;
  background: var(--rn-fg, var(--loud-accent)); color: #fff; border: 4px solid var(--loud-ink); box-shadow: 0 6px 0 var(--loud-ink);
  display: flex; align-items: center; justify-content: center;
  font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 800;
}
.rn-reveal-name {
  font-size: clamp(3rem, 12vw, 9rem); font-weight: 800; color: var(--rn-fg, var(--loud-ink));
  line-height: 1; letter-spacing: 0;
  max-width: 94vw; margin: 0 auto; overflow-wrap: anywhere;
}
.rn-reveal-full { font-size: clamp(1rem, 2.6vw, 1.7rem); font-weight: 700; color: var(--rn-fg, var(--loud-accent-sh)); margin-top: 12px; min-height: 26px; opacity: .85; }
.rn-hint { font-size: clamp(0.9rem, 1.6vw, 1.1rem); font-weight: 700; color: var(--rn-fg, var(--loud-accent-sh)); margin-top: 14px; min-height: 20px; opacity: .75; }
@media (prefers-reduced-motion: reduce) { .rn-fullscreen { transition: none; } }
.rn-controls { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.rn-spin {
  font-family: inherit; font-size: clamp(1.1rem, 2.6vw, 1.6rem); font-weight: 800; color: #fff;
  background: var(--loud-accent); border: none; border-radius: 99px;
  padding: clamp(13px, 1.8vh, 19px) clamp(44px, 8vw, 84px); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 11px;
  box-shadow: 0 7px 0 var(--loud-accent-sh); transition: transform .07s, box-shadow .07s;
}
.rn-spin:active { transform: translateY(7px); box-shadow: none; }
.rn-nodup-row { display: flex; align-items: center; gap: 9px; font-size: 0.95rem; font-weight: 700; color: var(--loud-ink); cursor: pointer; }
.rn-nodup-row input { width: 20px; height: 20px; accent-color: var(--loud-accent); }