:root { 
  --font-family: 'Plus Jakarta Sans', 'Anek Bangla', 'Noto Sans Bengali', system-ui, -apple-system, sans-serif;
  
  --bg-base: #f4f7fb;
  --bg-radial-1: rgba(37, 99, 235, 0.07);
  --bg-radial-2: rgba(99, 102, 241, 0.06);
  --bg-dots: #dbe3ef;
  
  --text-main: #0b132b;
  --text-muted: #475569;
  --text-subtle: #64748b;
  
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-glow: rgba(37, 99, 235, 0.26);
  
  --accent-gradient: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #4f46e5 100%);
  
  --card-bg: #ffffff;
  --card-border: #e2e8f0;
  
  --option-bg: #ffffff;
  --option-border: #cbd5e1;
  --option-border-bottom: #cbd5e1;
  --option-badge-bg: #f1f5f9;
  --option-badge-text: #1e293b;
  
  --stat-box-bg: #f8fafc;
  --pill-bg: #ffffff;
  --pill-border: #cbd5e1;
  --pill-text: #334155;
  
  --table-th-bg: #f8fafc;
  --table-hover: #fbfcfe;
  
  --modal-bg: #ffffff;
  --modal-border: rgba(226, 232, 240, 0.9);
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
  --shadow-elevated: 0 14px 32px -4px rgba(15, 23, 42, 0.09), 0 4px 12px -2px rgba(37, 99, 235, 0.06);
}

[data-theme="dark"] {
  --bg-base: #070b14;
  --bg-radial-1: rgba(37, 99, 235, 0.14);
  --bg-radial-2: rgba(99, 102, 241, 0.12);
  --bg-dots: #162032;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  
  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: rgba(59, 130, 246, 0.15);
  --primary-glow: rgba(59, 130, 246, 0.3);
  
  --accent-gradient: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #4f46e5 100%);
  
  --card-bg: #0f172a;
  --card-border: rgba(148, 163, 184, 0.14);
  
  --option-bg: rgba(30, 41, 59, 0.65);
  --option-border: #334155;
  --option-border-bottom: #1e293b;
  --option-badge-bg: #0f172a;
  --option-badge-text: #cbd5e1;
  
  --stat-box-bg: rgba(30, 41, 59, 0.65);
  --pill-bg: #1e293b;
  --pill-border: #334155;
  --pill-text: #cbd5e1;
  
  --table-th-bg: #1e293b;
  --table-hover: rgba(30, 41, 59, 0.4);
  
  --modal-bg: #0f172a;
  --modal-border: rgba(255, 255, 255, 0.12);
  
  --shadow-card: 0 10px 28px -6px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  --shadow-elevated: 0 18px 38px -6px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

* { box-sizing: border-box; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

#confettiCanvas { 
  position: fixed; 
  top: 0; 
  left: 0; 
  width: 100vw; 
  height: 100vh; 
  pointer-events: none; 
  z-index: 9999; 
}

body { 
  font-family: var(--font-family); 
  background: var(--bg-base); 
  background-image: 
    radial-gradient(ellipse 70% 40% at 15% -10%, var(--bg-radial-1) 0%, transparent 60%),
    radial-gradient(ellipse 70% 40% at 85% -10%, var(--bg-radial-2) 0%, transparent 60%),
    radial-gradient(var(--bg-dots) 0.75px, transparent 0.75px);
  background-size: 100% 100%, 100% 100%, 24px 24px;
  margin: 0; 
  padding: 0; 
  color: var(--text-main); 
  line-height: 1.6; 
  min-height: 100vh;
  font-variant-numeric: tabular-nums;
  transition: background-color 0.3s ease, color 0.3s ease;
}

input, button, select, textarea { font-family: var(--font-family); }

/* স্টিকি ফ্রস্টেড হেডার */
.app-header { 
  background: linear-gradient(180deg, rgba(7, 11, 20, 0.96) 0%, rgba(15, 23, 42, 0.94) 100%); 
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: #fff; 
  padding: 10px 24px; 
  position: sticky; 
  top: 0; 
  left: 0;
  width: 100%;
  z-index: 100; 
  border-bottom: 1px solid rgba(56, 189, 248, 0.14);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.45); 
}
.header-inner {
  max-width: 1120px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.brand-title {
  display: flex;
  align-items: center;
  gap: 11px;
  cursor: pointer;
  user-select: none;
}
.brand-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 21px;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.55), inset 0 1px 1px rgba(255, 255, 255, 0.4);
  flex-shrink: 0;
}
.brand-main-name { font-size: 19px; letter-spacing: -0.4px; display: block; line-height: 1.2; }
.brand-sub-tag { font-size: 11.5px; color: #94a3b8; display: block; margin-top: 1px; }

.nav-tabs-header { 
  display: flex; 
  gap: 4px; 
  background: rgba(255, 255, 255, 0.05); 
  padding: 5px; 
  border-radius: 14px; 
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow-x: auto; 
  scrollbar-width: none; 
}
.nav-tabs-header::-webkit-scrollbar { display: none; }
.header-tab-btn { 
  border: none;
  background: transparent; 
  padding: 8px 16px; 
  border-radius: 10px; 
  cursor: pointer; 
  font-weight: 600; 
  font-size: 14px; 
  color: #94a3b8; 
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1); 
  text-align: center; 
  white-space: nowrap; 
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.header-tab-btn:hover { color: #f8fafc; background: rgba(255, 255, 255, 0.08); }
.header-tab-btn.active { 
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%); 
  color: #ffffff; 
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.25); 
}

@keyframes radarPulse {
  0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.8); transform: scale(0.92); }
  50% { box-shadow: 0 0 0 6px rgba(239, 68, 68, 0.3), 0 0 0 12px rgba(239, 68, 68, 0); transform: scale(1.15); }
  100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); transform: scale(0.92); }
}
.live-signal-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #64748b;
  flex-shrink: 0;
}
.live-signal-dot.active-blinking {
  background: #ef4444;
  animation: radarPulse 1.4s infinite cubic-bezier(0.24, 0, 0.38, 1);
}

.theme-toggle-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #f8fafc;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 17px;
  transition: all 0.25s ease;
  flex-shrink: 0;
}
.theme-toggle-btn:hover { 
  background: rgba(255, 255, 255, 0.16); 
  transform: translateY(-1.5px) rotate(15deg);
}

.user-header-actions { display: flex; align-items: center; gap: 10px; }
.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 4px 6px 4px 10px;
  border-radius: 13px;
}
.user-avatar-wrap { position: relative; width: 34px; height: 34px; flex-shrink: 0; }
.user-avatar-img {
  width: 100%; height: 100%; border-radius: 50%; object-fit: cover; border: 1.5px solid #38bdf8;
}
.user-online-dot {
  position: absolute; bottom: -1px; right: -1px; width: 9px; height: 9px; background: #10b981; border: 2px solid #0a0f1d; border-radius: 50%;
}
.user-meta-text { text-align: left; line-height: 1.15; }
.user-name-display {
  font-size: 13px; font-weight: 700; color: #f8fafc; display: block; max-width: 90px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.user-role-sub { font-size: 10px; color: #38bdf8; font-weight: 600; }

.logout-btn-worldclass {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: #fca5a5;
  padding: 6px 10px;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.22s ease;
}
.logout-btn-worldclass:hover {
  background: #ef4444; color: #ffffff; border-color: #ef4444; box-shadow: 0 4px 14px rgba(239, 68, 68, 0.4);
}

.container { max-width: 1050px; margin: 24px auto; padding: 0 18px 60px; }
.card { 
  background: var(--card-bg); 
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 24px; 
  border-radius: 20px; 
  box-shadow: var(--shadow-card); 
  margin-bottom: 20px; 
  border: 1px solid var(--card-border); 
  position: relative;
  transition: all 0.28s ease;
}
.card:hover { box-shadow: var(--shadow-elevated); border-color: #cbd5e1; }
[data-theme="dark"] .card:hover { border-color: rgba(255, 255, 255, 0.18); }

.section-title { margin-top: 0; font-size: 19px; display: flex; align-items: center; gap: 8px; color: var(--text-main); }
.section-subtext { font-size: 13.5px; color: var(--text-muted); margin-top: 2px; margin-bottom: 14px; }
.app-input-field { width: 100%; padding: 12px 16px; border-radius: 12px; margin-bottom: 14px; font-size: 14px; }
.results-count-chip { font-size: 13px; color: var(--text-muted); font-weight: 700; margin-bottom: 12px; }
.load-more-btn { width: 100%; margin-top: 14px; padding: 12px; font-weight: 700; }

.notice-bar { 
  background: linear-gradient(135deg, #eff6ff 0%, #eef2ff 100%); 
  border: 1px solid #bfdbfe; 
  border-left: 4px solid #2563eb;
  color: #1e3a8a; 
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.06);
  padding: 12px 18px; 
  border-radius: 14px; 
  margin-bottom: 22px; 
  font-weight: 600; 
  font-size: 14px; 
  display: none; 
  align-items: center; 
  gap: 12px; 
}
[data-theme="dark"] .notice-bar {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.32) 0%, rgba(49, 46, 129, 0.28) 100%);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-left: 4px solid #38bdf8;
  color: #e0f2fe;
}

/* ======================================================== */
/* 🌟 হিরো ও লগইন গ্রিড লেআউট */
/* ======================================================== */

.hero-intro { text-align: left; }
.hero-badge { 
  display: inline-flex; 
  align-items: center; 
  gap: 7px; 
  background: linear-gradient(135deg, #eff6ff 0%, #e0e7ff 100%); 
  border: 1px solid #bfdbfe; 
  color: #1d4ed8; 
  padding: 5px 14px; 
  border-radius: 99px; 
  font-size: 13px; 
  font-weight: 700; 
  margin-bottom: 16px; 
}
[data-theme="dark"] .hero-badge {
  background: rgba(37,99,235,0.15);
  border-color: rgba(59,130,246,0.3);
  color: #93c5fd;
}
.hero-title { 
  font-size: 32px; 
  font-weight: 800; 
  line-height: 1.3; 
  color: var(--text-main); 
  margin: 0 0 14px; 
  letter-spacing: -0.6px; 
}
.text-gradient { 
  background: var(--accent-gradient); 
  -webkit-background-clip: text; 
  background-clip: text;
  -webkit-text-fill-color: transparent; 
}
.hero-desc { 
  font-size: 15px; 
  color: var(--text-muted); 
  margin: 0 0 20px; 
  line-height: 1.65; 
}

.login-header-icon { 
  width: 60px; 
  height: 60px; 
  background: linear-gradient(135deg, #eff6ff 0%, #e0e7ff 100%); 
  border: 2px solid #bfdbfe; 
  border-radius: 50%; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  font-size: 28px; 
  margin: 0 auto 16px; 
  box-shadow: 0 8px 20px rgba(37,99,235,0.15);
}
.login-box-title { margin: 0 0 6px; font-size: 21px; font-weight: 800; color: var(--text-main); }
.login-box-desc { font-size: 13.5px; color: var(--text-muted); margin: 0 0 22px; line-height: 1.5; }
.secure-badge-note { margin-top: 18px; font-size: 12px; color: var(--text-muted); display: flex; align-items: center; justify-content: center; gap: 6px; }

/* 🚀 কালারফুল ডায়নামিক গুগল বাটন */
.google-btn-premium { 
  position: relative;
  display: flex; 
  align-items: center; 
  justify-content: space-between;
  width: 100%; 
  padding: 10px 14px 10px 10px;
  border-radius: 16px; 
  cursor: pointer; 
  overflow: hidden;
  user-select: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 55%, #3730a3 100%);
  color: #ffffff;
  box-shadow: 0 12px 28px -6px rgba(37, 99, 235, 0.45);
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  min-height: 52px;
}
.google-btn-premium:hover { 
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -6px rgba(37, 99, 235, 0.6);
}
.g-icon-pill {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}
.g-btn-text {
  flex-grow: 1;
  text-align: center;
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin: 0 8px;
}
.g-arrow-chip {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.28);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.btn-ambient-glow {
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28), transparent);
  transform: skewX(-25deg);
  pointer-events: none;
  animation: ambientGlow 4s infinite cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes ambientGlow {
  0%, 65% { left: -120%; opacity: 0; }
  70% { opacity: 1; }
  100% { left: 180%; opacity: 0; }
}

/* বাটন ও ব্যাজ */
.btn { 
  background: var(--accent-gradient); 
  color: #fff; 
  border: none; 
  padding: 11px 20px; 
  border-radius: 12px; 
  cursor: pointer; 
  font-weight: 600; 
  font-size: 14.5px; 
  transition: all 0.22s ease; 
  display: inline-flex; 
  align-items: center; 
  justify-content: center; 
  gap: 8px; 
  box-shadow: 0 4px 12px rgba(37,99,235,0.25);
  text-decoration: none;
}
.btn:hover { transform: translateY(-1.5px); box-shadow: 0 8px 18px rgba(37,99,235,0.35); }
.btn-green { background: linear-gradient(135deg, #059669 0%, #047857 100%); box-shadow: 0 4px 12px rgba(5,150,105,0.25); }
.btn-outline { background: var(--card-bg); color: #2563eb; border: 1.5px solid #bfdbfe; box-shadow: none; }
.btn-outline:hover { background: var(--bg-base); border-color: #3b82f6; }
[data-theme="dark"] .btn-outline { border-color: #334155; color: #60a5fa; }
.btn-sm { padding: 7px 14px; font-size: 13px; border-radius: 9px; }

.badge { padding: 4px 12px; border-radius: 99px; font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; gap: 5px; }
.badge-live { background: #fee2e2; color: #dc2626; border: 1px solid #fecaca; }
.badge-up { background: #fef3c7; color: #b45309; border: 1px solid #fde68a; }
.badge-done { background: #d1fae5; color: #047857; border: 1px solid #a7f3d0; }

.tag-badge { 
  display: inline-flex; align-items: center; padding: 3.5px 10px; border-radius: 7px; font-size: 12px; font-weight: 600; margin-right: 5px; margin-bottom: 5px; 
}
.tag-sub { background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.tag-chap { background: #f0fdf4; color: #15803d; border: 1px solid #bbf7d0; }
.tag-topic { background: #fefce8; color: #a16207; border: 1px solid #fef08a; }
.tag-exam { background: #fdf2f8; color: #be185d; border: 1px solid #fbcfe8; }

.exam-item { 
  border: 1px solid var(--card-border); 
  padding: 20px; 
  border-radius: 16px; 
  margin-bottom: 16px; 
  background: var(--card-bg); 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  flex-wrap: wrap; 
  gap: 16px; 
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}
.exam-item:hover { border-color: #cbd5e1; box-shadow: var(--shadow-elevated); transform: translateY(-2px); }
.exam-item-actions { display: flex; flex-direction: column; gap: 9px; min-width: 220px; }
.exam-sub-btns { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }

/* ফিল্টার ও পিল বাটন */
.filter-label { font-size: 13.5px; font-weight: 700; color: var(--text-main); margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }
.topic-filter-pills { display: flex; flex-wrap: wrap; gap: 8px 6px; margin-bottom: 16px; }
.pill-btn { 
  border: 1px solid var(--pill-border); background: var(--pill-bg); color: var(--pill-text); padding: 7px 14px; border-radius: 99px; font-size: 13px; font-weight: 600; cursor: pointer; white-space: nowrap; transition: all 0.2s ease; 
}
.pill-btn:hover { background: var(--bg-base); border-color: #94a3b8; }
.pill-btn-exam.active, .merit-filter-pill.active, .history-filter-pill.active { background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%) !important; border-color: #7c3aed !important; color: #fff !important; }
.pill-btn-subject.active { background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%) !important; border-color: #2563eb !important; color: #fff !important; }
.pill-btn-chapter.active { background: linear-gradient(135deg, #059669 0%, #047857 100%) !important; border-color: #059669 !important; color: #fff !important; }

/* ৩ডি ট্যাকটাইল অপশন বাটন */
.option-btn { 
  display: flex; align-items: center; width: 100%; text-align: left; background: var(--option-bg); border: 1.5px solid var(--option-border); border-bottom: 3.5px solid var(--option-border-bottom); padding: 13px 16px; margin: 9px 0; border-radius: 14px; cursor: pointer; font-size: 15px; font-weight: 500; color: var(--text-main); transition: all 0.18s ease; min-height: 50px;
}
.opt-key-badge {
  width: 32px; height: 32px; border-radius: 9px; background: var(--option-badge-bg); color: var(--option-badge-text); font-weight: 700; font-size: 14px; display: inline-flex; align-items: center; justify-content: center; margin-right: 12px; flex-shrink: 0; border: 1px solid var(--card-border);
}
.option-btn.selected { background: #eff6ff !important; border-color: #2563eb !important; border-bottom-color: #1d4ed8 !important; color: #1d4ed8 !important; }
[data-theme="dark"] .option-btn.selected { background: rgba(37,99,235,0.2) !important; color: #93c5fd !important; }
.option-btn.correct { background: #ecfdf5 !important; border-color: #10b981 !important; color: #065f46 !important; }
.option-btn.wrong { background: #fff1f2 !important; border-color: #f43f5e !important; color: #9f1239 !important; }
.explanation-box { background: #f8fafc; border: 1px solid #cbd5e1; border-left: 4px solid #0f172a; padding: 14px 16px; margin-top: 14px; font-size: 14.5px; border-radius: 10px; color: #000000 !important; line-height: 1.65; white-space: normal; }
[data-theme="dark"] .explanation-box { background: #1e293b; border-color: #334155; border-left-color: #94a3b8; color: #f8fafc !important; }
.explanation-box .exp-body { color: #000000 !important; word-break: break-word; }
[data-theme="dark"] .explanation-box .exp-body { color: #f8fafc !important; }
.explanation-box .exp-bullet { color: #0f172a; font-weight: 700; }
.exp-hl { background: #fef08a; color: #000000; padding: 1px 5px; border-radius: 4px; font-weight: 700; }
[data-theme="dark"] .exp-hl { background: #a16207; color: #fef9c3; }
.exp-toggle-btn { background: #f1f5f9; color: #0f172a; border: 1px solid #cbd5e1; padding: 6px 12px; border-radius: 8px; font-size: 13px; font-weight: 700; cursor: pointer; margin-top: 10px; display: inline-flex; align-items: center; gap: 5px; transition: all 0.15s ease; }
.exp-toggle-btn:hover { background: #e2e8f0; border-color: #94a3b8; }
[data-theme="dark"] .exp-toggle-btn { background: #1e293b; color: #f8fafc; border-color: #334155; }
[data-theme="dark"] .exp-toggle-btn:hover { background: #334155; }
.question-locked-tag { display: inline-flex; align-items: center; gap: 4px; background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; padding: 2px 8px; border-radius: 6px; font-size: 11.5px; font-weight: 700; }

/* টাইমার বার ও কোশ্চেন প্যালেট */
.timer-bar { 
  position: sticky; top: 60px; background: rgba(10, 15, 29, 0.95); backdrop-filter: blur(16px); color: #fff; padding: 12px 18px; border-radius: 16px; display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; z-index: 85; border: 1px solid rgba(255, 255, 255, 0.12);
}
.exam-title-meta { display: flex; align-items: center; gap: 6px; }
.exam-timer-actions { display: flex; align-items: center; gap: 8px; }
.timer-counter-text { font-size: 18px; font-weight: 700; color: #38bdf8; }

.q-palette-container { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 16px; padding: 14px 16px; margin-bottom: 18px; }
.palette-header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.palette-title { font-weight: 700; color: var(--text-main); }
.palette-legend { color: var(--text-muted); }
.q-palette-grid { display: flex; flex-wrap: wrap; gap: 6px; }
.q-palette-item {
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; border-radius: 8px; font-size: 13px; font-weight: 700; cursor: pointer; border: 1.5px solid var(--card-border); background: var(--stat-box-bg); color: var(--text-muted);
}
.q-palette-item.palette-answered { background: #059669; color: #fff; border-color: #059669; }
.q-palette-item.palette-flagged { background: #d97706; color: #fff; border-color: #d97706; }
.submit-exam-bottom-btn { width: 100%; padding: 15px; font-size: 16px; margin-top: 10px; border-radius: 14px; }

/* ড্যাশবোর্ড ও মেধা তালিকা */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; text-align: center; margin-bottom: 20px; }
.stat-box { background: var(--stat-box-bg); border: 1px solid var(--card-border); padding: 16px 10px; border-radius: 16px; }
.stat-box h3 { margin: 0; font-size: 26px; color: var(--primary); font-weight: 800; }
.stat-box small { color: var(--text-muted); font-size: 13px; font-weight: 600; display: block; margin-top: 4px; }

.dash-nav { display: flex; gap: 8px; margin-bottom: 18px; border-bottom: 2px solid var(--card-border); padding-bottom: 10px; }
.dash-tab-btn { 
  border: none; background: transparent; padding: 9px 15px; border-radius: 10px; cursor: pointer; font-weight: 700; font-size: 13.5px; color: var(--text-muted); white-space: nowrap; transition: 0.2s;
}
.dash-tab-btn.active { background: #eff6ff; color: #2563eb; }

/* মোডাল ও সিকিউরিটি */
.custom-modal-backdrop {
  position: fixed; inset: 0; background: rgba(10, 15, 29, 0.75); backdrop-filter: blur(14px); display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 99999;
}
.custom-modal-card {
  background: var(--modal-bg); border-radius: 24px; padding: 28px 20px 22px; max-width: 400px; width: 100%; text-align: center; box-shadow: 0 30px 60px rgba(15, 23, 42, 0.45); border: 1.5px solid var(--modal-border);
}
.modal-icon-wrapper { width: 64px; height: 64px; margin: 0 auto 14px; border-radius: 20px; font-size: 30px; display: flex; align-items: center; justify-content: center; }
.modal-title { font-size: 19px; font-weight: 800; margin: 0 0 8px; }
.modal-message { font-size: 14.5px; color: var(--text-muted); margin: 0 0 20px; line-height: 1.55; }
.modal-actions { display: flex; gap: 8px; }
.modal-actions .btn { flex: 1; padding: 12px; font-size: 14.5px; }

table { width: 100%; border-collapse: separate; border-spacing: 0; margin-top: 12px; font-size: 14px; border-radius: 14px; overflow: hidden; border: 1px solid var(--card-border); }
th, td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--card-border); }
th { background: var(--table-th-bg); font-weight: 700; }
.table-responsive-container { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.security-watermark-overlay {
  position: absolute; inset: 0; pointer-events: none; user-select: none; z-index: 5; overflow: hidden; display: flex; flex-wrap: wrap; gap: 70px 80px; justify-content: center; align-items: center; opacity: 0.055;
}
.watermark-item { transform: rotate(-25deg); font-size: 14px; font-weight: 800; color: var(--text-main); white-space: nowrap; }

/* 📂 ফিল্টার পিল "আরও দেখুন" বাটন */
.pill-btn-more {
  background: #f1f5f9;
  border: 1.5px dashed #94a3b8;
  color: var(--primary);
  font-weight: 700;
  cursor: pointer;
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 13px;
  transition: all 0.2s ease;
}
.pill-btn-more:hover {
  background: #e2e8f0;
  border-color: var(--primary);
  transform: translateY(-1px);
}
[data-theme="dark"] .pill-btn-more {
  background: rgba(30, 41, 59, 0.85);
  border-color: #475569;
  color: #38bdf8;
}
[data-theme="dark"] .pill-btn-more:hover {
  background: rgba(51, 65, 85, 0.95);
  border-color: #38bdf8;
}

/* ======================================================== */
/* 🖥️ ডেক্সটপে মোবাইল বটম নেভ ১০০% সম্পূর্ণ হাইড */
/* ======================================================== */
.mobile-bottom-nav {
  display: none !important;
}

html, body {
  overflow-x: clip !important;
  max-width: 100vw !important;
}

@media (max-width: 768px) {
  /* পেজ কন্টেইনার ও কার্ডের মাপ */
  .container { 
    padding: 0 10px 95px !important; 
    margin-top: 10px !important; 
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: visible !important;
  }
  
  .card { 
    padding: 16px 12px !important; 
    border-radius: 16px !important; 
    margin-bottom: 14px !important; 
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  /* ১. স্লিক ফ্রস্টেড টপ হেডার */
  .app-header { 
    padding: 8px 14px !important; 
    height: 60px !important;
    background: linear-gradient(180deg, rgba(7, 11, 20, 0.96) 0%, rgba(15, 23, 42, 0.94) 100%) !important;
    backdrop-filter: blur(24px) !important;
    -webkit-backdrop-filter: blur(24px) !important;
    border-bottom: 1px solid rgba(56, 189, 248, 0.14) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35) !important;
  }
  
  .header-inner { 
    height: 100% !important;
    flex-direction: row !important; 
    justify-content: space-between !important; 
    align-items: center !important; 
  }

  .brand-logo-icon { 
    width: 36px !important; 
    height: 36px !important; 
    font-size: 19px !important; 
    border-radius: 11px !important;
    box-shadow: 0 0 16px rgba(59, 130, 246, 0.6) !important;
  }
  
  .brand-main-name { 
    font-size: 16.5px !important; 
    font-weight: 800 !important;
    letter-spacing: -0.3px !important;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  .brand-sub-tag { display: none !important; }
  .desktop-nav-tabs { display: none !important; }

  /* ✅ সংশোধিত কোড (লগআউট অবস্থায় প্রোফাইল আর জোর করে দেখাবে না): */
  .header-right-actions { 
    display: flex !important;
    align-items: center !important;
    gap: 6px !important; 
  }

  /* লগইন না থাকলে প্রোফাইল ও লগআউট মোবাইলে কোনোভাবেই দেখাবে না */
  #userHeaderInfo[style*="display: none"],
  #userHeaderInfo[style*="display:none"] {
    display: none !important;
  }
/* 🖥️ ডেক্সটপে থিম বাটন ও প্রোফাইল চিপ সবসময় পাশাপাশি এক লাইনে থাকবে */
.header-right-actions,
.user-header-actions {
  display: flex !important;
  align-items: center !important;
  gap: 6px !important;
  flex-direction: row !important;
}
  .theme-toggle-btn {
    width: 36px !important;
    height: 36px !important;
    border-radius: 11px !important;
    background: rgba(255, 255, 255, 0.06) !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
  }

  .user-profile-badge { 
    padding: 3px 4px 3px 5px !important;
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 99px !important;
    gap: 5px !important;
  }
  
  .user-avatar-wrap { width: 30px !important; height: 30px !important; }
  .user-avatar-img { border-width: 1.5px !important; border-color: #38bdf8 !important; }
  .user-meta-text { display: none !important; }
  .logout-text { display: none !important; }
  
  .logout-btn-worldclass { 
    padding: 6px 8px !important;
    border-radius: 99px !important;
    background: rgba(239, 68, 68, 0.15) !important;
    border: 1px solid rgba(239, 68, 68, 0.3) !important;
  }

 
  .login-card-box { 
    padding: 24px 16px !important; 
    border-radius: 20px !important; 
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08) !important; 
  }
  .login-box-title { font-size: 19px !important; }
  .login-header-icon { width: 50px !important; height: 50px !important; font-size: 24px !important; margin-bottom: 12px !important; }
  
  .hero-intro { text-align: center !important; }
  .hero-title { font-size: 24px !important; margin-bottom: 10px !important; }
  .hero-desc { font-size: 13.5px !important; margin-bottom: 16px !important; }
  .feature-item { padding: 10px 12px !important; gap: 10px !important; text-align: left !important; }
  .feature-item strong { font-size: 13px !important; }
  .feature-item small { font-size: 11.5px !important; }

  /* ৩. ইনপুট ফিল্ড ও ফিল্টার পিল (ডানপাশে কাটা বন্ধ) */
  .app-input-field {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .topic-filter-pills,
  .scrollable-pills {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 7px 6px !important;
    margin-bottom: 14px !important;
    overflow-x: visible !important;
    width: 100% !important;
  }

  .pill-btn { 
    flex-shrink: 0 !important; 
    padding: 7px 12px !important; 
    font-size: 12.5px !important;
    white-space: normal !important;
    text-align: center !important;
  }

  /* ৪. ড্যাশবোর্ডের ৩টি ট্যাব মোবাইলে ফুল-উইডথ কার্ড */
  .dash-nav {
    display: flex !important;
    flex-direction: column !important; 
    gap: 7px !important;
    border-bottom: none !important;
    padding-bottom: 0 !important;
    width: 100% !important;
  }
  
  .dash-tab-btn {
    width: 100% !important;
    text-align: center !important;
    padding: 10px !important;
    border-radius: 10px !important;
    border: 1px solid var(--card-border) !important;
    background: var(--stat-box-bg) !important;
    font-size: 13.5px !important;
  }
  .dash-tab-btn.active {
    background: #eff6ff !important;
    color: #2563eb !important;
    border-color: #bfdbfe !important;
  }

  /* ৫. ড্যাশবোর্ড স্ট্যাটস গ্রিড ২x২ */
  .stats-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 8px !important; }
  .stat-box { padding: 12px 8px !important; border-radius: 13px !important; }
  .stat-box h3 { font-size: 22px !important; }
  .stat-box small { font-size: 11.5px !important; }

  /* ৬. এক্সাম কার্ড রেসপনসিভ */
  .exam-item { 
    flex-direction: column !important; 
    align-items: stretch !important; 
    padding: 14px 12px !important; 
    gap: 12px !important; 
  }
  .exam-item-actions { width: 100% !important; min-width: 100% !important; gap: 8px !important; }
  .exam-item-actions .btn { width: 100% !important; min-height: 44px !important; font-size: 14px !important; }
  .exam-sub-btns { gap: 6px !important; }

  /* ৭. এক্সাম রুম ও ওএমআর অপশন */
  .timer-bar { top: 50px !important; padding: 10px 12px !important; border-radius: 12px !important; }
  .timer-counter-text { font-size: 16px !important; }
  .q-palette-container { padding: 10px !important; }
  .q-palette-item { width: 30px !important; height: 30px !important; font-size: 12px !important; }
  .option-btn { padding: 11px 12px !important; font-size: 14px !important; min-height: 46px !important; }

  /* ৮. 🚀 ফ্ল্যাগশিপ মোবাইল বটম ডক (Native App Dock) */
  .mobile-bottom-nav {
    display: flex !important;
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    height: 64px !important;
    background: rgba(8, 13, 25, 0.96) !important;
    backdrop-filter: blur(28px) !important;
    -webkit-backdrop-filter: blur(28px) !important;
    border-top: 1px solid rgba(56, 189, 248, 0.14) !important;
    z-index: 99999 !important;
    padding: 6px 12px calc(6px + env(safe-area-inset-bottom)) !important;
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.45) !important;
    justify-content: space-around !important;
    align-items: center !important;
  }

  .mobile-nav-item {
    background: transparent !important;
    border: none !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 3px !important;
    padding: 6px 14px !important;
    border-radius: 14px !important;
    cursor: pointer !important;
    flex: 1 !important;
    color: #94a3b8 !important;
    transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1) !important;
    user-select: none !important;
    -webkit-tap-highlight-color: transparent !important;
  }

  .mobile-nav-svg {
    width: 21px !important;
    height: 21px !important;
    transition: all 0.22s ease !important;
  }

  .nav-icon-wrap {
    position: relative !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }

  .mobile-nav-item .nav-label { 
    font-size: 11px !important; 
    font-weight: 700 !important; 
    letter-spacing: 0.1px !important;
    transition: all 0.22s ease !important;
  }

  .mobile-nav-item.active {
    color: #38bdf8 !important;
    background: rgba(56, 189, 248, 0.12) !important;
    box-shadow: inset 0 1px 0 rgba(56, 189, 248, 0.2) !important;
    transform: translateY(-2px) !important;
  }

  .mobile-nav-item.active .mobile-nav-svg {
    stroke: #38bdf8 !important;
    transform: scale(1.1) !important;
    filter: drop-shadow(0 2px 8px rgba(56, 189, 248, 0.5)) !important;
  }

  .mobile-nav-item.active .nav-label {
    color: #38bdf8 !important;
    font-weight: 800 !important;
  }

  .mobile-nav-item:active {
    transform: scale(0.92) !important;
  }

  .mobile-live-dot {
    position: absolute !important;
    top: -2px !important;
    right: -3px !important;
    width: 7px !important;
    height: 7px !important;
    border-radius: 50% !important;
    background: #ef4444 !important;
    box-shadow: 0 0 8px #ef4444 !important;
    animation: radarPulse 1.4s infinite cubic-bezier(0.24, 0, 0.38, 1) !important;
  }
}
/* ======================================================== */
/* 🌟 মাস্টারক্লাস মোবাইল অনবোর্ডিং ও বেন্টো গ্রিড সিএসএস */
/* ======================================================== */


/* ১. লাইভ আর্জেন্সি পিল */
.hero-live-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: #dc2626;
  padding: 5px 14px;
  border-radius: 99px;
  font-size: 12.5px;
  font-weight: 700;
  margin-bottom: 16px;
}
[data-theme="dark"] .hero-live-pill {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.35);
  color: #fca5a5;
}
.live-dot-ping {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ef4444;
  box-shadow: 0 0 8px #ef4444;
  animation: radarPulse 1.4s infinite cubic-bezier(0.24, 0, 0.38, 1);
}

/* ২. সেন্ট্রাল ৩ডি মাসকট আইকন */
.mascot-avatar-circle {
  position: relative;
  width: 68px;
  height: 68px;
  margin: 0 auto 16px;
  border-radius: 24px;
  background: linear-gradient(135deg, #eff6ff 0%, #e0e7ff 100%);
  border: 1.5px solid #bfdbfe;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 28px -6px rgba(37, 99, 235, 0.25);
}
[data-theme="dark"] .mascot-avatar-circle {
  background: rgba(37, 99, 235, 0.18);
  border-color: rgba(59, 130, 246, 0.35);
  box-shadow: 0 12px 28px -6px rgba(37, 99, 235, 0.4);
}
.mascot-emoji {
  font-size: 34px;
  transform: rotate(-6deg);
}
.mascot-glow-ring {
  position: absolute;
  inset: -4px;
  border-radius: 28px;
  border: 1px dashed rgba(37, 99, 235, 0.3);
  pointer-events: none;
}

/* টাইটেল ও সাবটাইটেল */
.master-login-title {
  font-size: 26px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--text-main);
  margin: 0 0 10px;
  letter-spacing: -0.5px;
}
.master-login-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 auto 22px;
  max-width: 440px;
}

/* ৩. ১-ট্যাপ অ্যাকশন বক্স */
.login-action-capsule {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 22px;
  padding: 20px 16px 16px;
  box-shadow: 0 14px 35px -8px rgba(15, 23, 42, 0.08);
  margin-bottom: 22px;
}
[data-theme="dark"] .login-action-capsule {
  box-shadow: 0 14px 35px -8px rgba(0, 0, 0, 0.45);
}

/* সোশ্যাল প্রুফ ট্রাস্ট বার */
.trust-social-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}
.candidate-stack {
  display: flex;
  align-items: center;
}
.user-chip-mini {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  margin-left: -5px;
  border: 1.5px solid var(--card-bg);
}
.candidate-stack .user-chip-mini:first-child {
  margin-left: 0;
}
.trust-text {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-muted);
}

/* ৪. 🔥 আধুনিক ২x২ কমপ্যাক্ট বেন্টো গ্রিড (Bento Grid) */
.features-bento-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.bento-icon-box {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.bento-content h4 {
  margin: 0 0 3px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-main);
}
.bento-content p {
  margin: 0;
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ডেক্সটপ রেসপন্সিভ অপ্টিমাইজেশন */
@media (min-width: 769px) {
  .master-login-title {
    font-size: 34px;
  }
  .features-bento-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
  }
}
/* ======================================================== */
/* 🌟 ক্লিন ও মিনিমালিস্ট প্রফেশনাল অথেন্টিকেশন কার্ড */
/* ======================================================== */
.clean-auth-card {
  max-width: 440px;
  margin: 20px auto 40px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-top: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 24px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-elevated);
}
[data-theme="dark"] .clean-auth-card {
  box-shadow: var(--shadow-elevated);
  border-top: 1px solid rgba(56, 189, 248, 0.3);
}

.apk-download-card {
  margin-top: 16px;
  padding: 14px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.07) 0%, rgba(37, 99, 235, 0.07) 100%);
  border: 1.5px dashed rgba(16, 185, 129, 0.45);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
}
[data-theme="dark"] .apk-download-card {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.12) 0%, rgba(37, 99, 235, 0.12) 100%);
  border-color: rgba(52, 211, 153, 0.38);
}
.apk-card-header { display: flex; align-items: center; justify-content: center; gap: 8px; }
.apk-badge-icon { 
  width: 28px; 
  height: 28px; 
  border-radius: 8px; 
  background: rgba(16, 185, 129, 0.15); 
  color: #047857; 
  display: inline-flex; 
  align-items: center; 
  justify-content: center; 
  flex-shrink: 0; 
}
[data-theme="dark"] .apk-badge-icon { 
  background: rgba(16, 185, 129, 0.2); 
  color: #34d399; 
}

.auth-brand-badge {
  width: 60px;
  height: 60px;
  margin: 0 auto 14px;
  border-radius: 18px;
  background: linear-gradient(135deg, #eff6ff 0%, #e0e7ff 100%);
  border: 1.5px solid #bfdbfe;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.18);
}
[data-theme="dark"] .auth-brand-badge {
  background: rgba(37, 99, 235, 0.15);
  border-color: rgba(59, 130, 246, 0.35);
}
.auth-hat-icon {
  font-size: 30px;
}

.auth-main-title {
  margin: 0 0 6px;
  font-size: 23px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.4px;
}

.auth-tagline {
  margin: 0 0 24px;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

.auth-action-area {
  margin-bottom: 24px;
}

.auth-security-text {
  display: block;
  margin-top: 10px;
  font-size: 11.5px;
  color: var(--text-muted);
  font-weight: 600;
}

/* ৪টি ক্লিন ও অথেনটিক ফিচার লিস্ট */
.auth-feature-list {
  border-top: 1px solid var(--card-border);
  padding-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
}

.auth-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.feature-bullet {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  flex-shrink: 0;
}
[data-theme="dark"] .feature-bullet {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border-color: rgba(16, 185, 129, 0.3);
}

/* মোবাইলে পারফেক্ট সাইজ */
@media (max-width: 768px) {
  .clean-auth-card {
    margin: 10px auto 30px;
    padding: 24px 16px;
    border-radius: 20px;
  }
  .auth-main-title {
    font-size: 21px;
  }
  .auth-tagline {
    font-size: 13px;
    margin-bottom: 20px;
  }
}
/* ==============================================================
   ✨ MASTERCLASS MOBILE VIEW & ULTRA-CLEAN EXAM CARD DESIGN
   ============================================================== */
.feed-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.feed-header-row .section-title {
  margin: 0 !important;
  font-size: 18px !important;
  font-weight: 700;
  letter-spacing: -0.2px;
}
.feed-live-subbadge,
.feed-live-Subbadge {
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 99px;
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
  white-space: nowrap;
}
[data-theme="dark"] .feed-live-subbadge,
[data-theme="dark"] .feed-live-Subbadge {
  background: rgba(59, 130, 246, 0.15);
  color: #93c5fd;
  border-color: rgba(59, 130, 246, 0.3);
}

/* প্রিমিয়াম এক্সাম কার্ড */
.exam-card-pro {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}
.exam-card-pro:hover {
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: var(--shadow-elevated);
}
.exam-card-pro::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, #2563eb 0%, #4f46e5 50%, #e11d48 100%);
  opacity: 0.95;
}
.exam-card-pro.upcoming-card::before {
  background: linear-gradient(180deg, #f59e0b 0%, #d97706 100%);
}

/* কার্ডের টপ রো: স্ট্যাটাস ব্যাজ + ডেডলাইন */
.ec-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.ec-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 99px;
  font-size: 11.5px;
  font-weight: 700;
}
.ec-status-pill.live {
  background: #fff1f2;
  color: #e11d48;
  border: 1px solid #fecdd3;
}
[data-theme="dark"] .ec-status-pill.live {
  background: rgba(244, 63, 94, 0.14);
  color: #fda4af;
  border-color: rgba(244, 63, 94, 0.32);
}
.ec-status-pill.upcoming {
  background: #fffbeb;
  color: #b45309;
  border: 1px solid #fde68a;
}
[data-theme="dark"] .ec-status-pill.upcoming {
  background: rgba(245, 158, 11, 0.14);
  color: #fcd34d;
  border-color: rgba(245, 158, 11, 0.32);
}
.ec-pulse-dot {
  width: 7px;
  height: 7px;
  background: #ef4444;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.25);
}
.ec-time-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted, #64748b);
}

/* পরীক্ষার নাম */
.ec-title {
  margin: 0 0 10px 0;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--text-main, #0f172a);
  line-height: 1.4;
}

/* মেটা চিপস (প্রশ্ন ও সময়) */
.ec-meta-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.ec-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--stat-box-bg);
  border: 1px solid var(--card-border);
  padding: 4px 10px;
  border-radius: 8px;
}

/* নিচের বাটন বার: এক লাইনেই প্রাইমারি বাটন + আইকন পিল */
.ec-action-bar {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ec-start-btn {
  flex: 1;
  height: 42px;
  border-radius: 11px !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #4f46e5 100%) !important;
  color: #ffffff !important;
  box-shadow: 0 6px 16px -2px rgba(37, 99, 235, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.ec-icon-btn {
  height: 42px;
  padding: 0 12px !important;
  border-radius: 11px !important;
  font-size: 12.5px !important;
  font-weight: 600 !important;
  background: var(--stat-box-bg) !important;
  color: var(--text-main) !important;
  border: 1px solid var(--card-border) !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  white-space: nowrap;
  transition: all 0.2s ease;
}
.ec-icon-btn:hover {
  border-color: #3b82f6 !important;
  color: var(--primary) !important;
}
.ec-icon-btn:active, .ec-start-btn:active {
  transform: scale(0.97);
}

/* 📱 মোবাইলে বাইরের অতিরিক্ত কার্ড বর্ডার ও প্যাডিং রিমুভ করে ফুল-ব্লিড প্রিমিয়াম ভিউ */
@media (max-width: 640px) {
  .main-content-container {
    padding: 10px 12px 86px 12px !important;
  }
  .master-feed-card {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    padding: 4px 0 !important;
  }
  .exam-card-pro.upcoming-card .ec-action-bar { display: grid !important; grid-template-columns: 1fr 1fr !important; gap: 8px !important; }
  .exam-card-pro.upcoming-card .ec-action-bar .btn { width: 100% !important; padding: 0 8px !important; justify-content: center !important; }
  .exam-card-pro {
    padding: 15px 15px 15px 17px;
    border-radius: 16px;
    margin-bottom: 12px;
  }
  .ec-title {
    font-size: 16px;
  }
}
/* ================= নতুন সংযোজন: স্টিকি টাইমার ও সল্যুশন ফিল্টার ================= */
.timer-bar { 
  position: -webkit-sticky !important;
  position: sticky !important; 
  top: 60px !important; 
  background: rgba(10, 15, 29, 0.96) !important; 
  backdrop-filter: blur(18px) !important; 
  -webkit-backdrop-filter: blur(18px) !important; 
  z-index: 95 !important; 
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35) !important;
}

.sol-filter-pill.active {
  background: var(--accent-gradient) !important;
  border-color: #2563eb !important;
  color: #fff !important;
}
.sol-filter-pill[data-filter="correct"].active {
  background: linear-gradient(135deg, #059669 0%, #047857 100%) !important;
  border-color: #059669 !important;
  color: #fff !important;
}
.sol-filter-pill[data-filter="wrong"].active {
  background: linear-gradient(135deg, #e11d48 0%, #be123c 100%) !important;
  border-color: #e11d48 !important;
  color: #fff !important;
}
.sol-filter-pill[data-filter="unanswered"].active {
  background: linear-gradient(135deg, #d97706 0%, #b45309 100%) !important;
  border-color: #d97706 !important;
  color: #fff !important;
}
/* ================= প্রিমিয়াম Read/Unread, All-Time Merit ও ড্যাশবোর্ড রেসপনসিভ ইউআই ================= */

/* ড্যাশবোর্ড ৪-ট্যাব নেভিগেশন (Windows-এ ৪ কলাম, Mobile-এ ২x২ গ্রিড) */
.dash-nav {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 8px !important;
  border-bottom: 2px solid var(--card-border) !important;
  padding-bottom: 12px !important;
  margin-bottom: 18px !important;
}
.dash-tab-btn {
  width: 100% !important;
  text-align: center !important;
  padding: 10px 8px !important;
  border-radius: 12px !important;
  border: 1px solid var(--card-border) !important;
  background: var(--stat-box-bg) !important;
  font-size: 13.5px !important;
  font-weight: 700 !important;
  color: var(--text-muted) !important;
  transition: all 0.2s ease !important;
}
.dash-tab-btn.active {
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%) !important;
  color: #ffffff !important;
  border-color: transparent !important;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28) !important;
}

@media (max-width: 768px) {
  .dash-nav {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 7px !important;
    border-bottom: none !important;
    padding-bottom: 4px !important;
  }
  .dash-tab-btn {
    font-size: 12.5px !important;
    padding: 9px 6px !important;
  }
}

/* স্পেস-সেভিং প্রিমিয়াম Read / Unread কম্প্যাক্ট বার */
.compact-read-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
  padding: 6px 10px;
  background: var(--stat-box-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
}
.read-segment-group {
  display: inline-flex;
  background: var(--bg-base);
  padding: 3px;
  border-radius: 9px;
  border: 1px solid var(--card-border);
  gap: 3px;
}
.read-seg-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}
.read-seg-btn.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
}

/* প্রশ্নের কার্ডের ভেতর ওয়ান-ট্যাপ Read/Unread টগল পিল */
.read-toggle-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3.5px 10px;
  border-radius: 99px;
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid var(--card-border);
  background: var(--stat-box-bg);
  color: var(--text-muted);
  user-select: none;
  white-space: nowrap;
}
.read-toggle-pill.is-read {
  background: #ecfdf5;
  color: #047857;
  border-color: #a7f3d0;
}
[data-theme="dark"] .read-toggle-pill.is-read {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.3);
}

/* অল-টাইম মেরিট ইউজার সামারি ব্যানার ও রেসপনসিভ টেবিল */
.alltime-user-banner {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: #ffffff;
  padding: 16px 18px;
  border-radius: 16px;
  margin-bottom: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  border: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: 0 8px 20px -4px rgba(15, 23, 42, 0.25);
}
.alltime-banner-stats {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.alltime-stat-pill {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 6px 12px;
  border-radius: 10px;
  text-align: center;
}
.alltime-stat-pill small {
  display: block;
  font-size: 11px;
  color: #94a3b8;
}
.alltime-stat-pill strong {
  font-size: 15px;
  color: #38bdf8;
}

.alltime-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--card-border);
}
.alltime-table th, .alltime-table td {
  padding: 11px 12px;
  font-size: 13.5px;
  vertical-align: middle;
}
@media (max-width: 640px) {
  .alltime-user-banner {
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
  }
  .alltime-banner-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .alltime-table th, .alltime-table td {
    padding: 9px 8px;
    font-size: 12.5px;
  }
}
/* ==============================================================
   🚀 ইন-অ্যাপ আপডেট চেকার ব্যানার (In-App Update Notification Banner)
   ============================================================== */
.app-update-banner {
  position: fixed;
  top: 68px;
  left: 14px;
  right: 14px;
  max-width: 460px;
  margin: 0 auto;
  z-index: 99990;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  color: #ffffff;
  border: 1.5px solid rgba(56, 189, 248, 0.35);
  border-radius: 16px;
  padding: 11px 14px;
  box-shadow: 0 16px 36px -6px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  animation: slideDownUpdateBanner 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

[data-theme="light"] .app-update-banner {
  background: rgba(15, 23, 42, 0.96);
  color: #ffffff;
}

@keyframes slideDownUpdateBanner {
  0% { transform: translateY(-30px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

.update-banner-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #059669 0%, #10b981 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
}

.update-banner-body {
  flex: 1;
  min-width: 0;
  text-align: left;
}

.update-banner-title {
  display: block;
  font-size: 13.5px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.25;
}

.update-banner-desc {
  display: block;
  font-size: 11.5px;
  color: #94a3b8;
  line-height: 1.35;
  margin-top: 2px;
}

.update-banner-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn-update-reload {
  background: linear-gradient(135deg, #2563eb 0%, #38bdf8 100%);
  color: #ffffff;
  border: none;
  padding: 7px 13px;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn-update-reload:hover {
  opacity: 0.95;
  transform: scale(1.02);
}

.btn-update-reload:active {
  transform: scale(0.96);
}

.btn-update-dismiss {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #94a3b8;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn-update-dismiss:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

@media (max-width: 480px) {
  .app-update-banner {
    top: 64px;
    left: 10px;
    right: 10px;
    padding: 10px 12px;
    gap: 10px;
  }
  .update-banner-icon {
    width: 32px;
    height: 32px;
  }
  .btn-update-reload {
    padding: 6px 11px;
    font-size: 11.5px;
  }
}
/* ==============================================================
   🎯 টপিক প্রশ্নভান্ডারের ৩টি মূল মোড ট্যাব ও সাব-ট্যাব স্টাইল
   ============================================================== */
.topic-master-nav-bar {
  display: flex;
  gap: 8px;
  background: var(--stat-box-bg, #f8fafc);
  padding: 6px;
  border-radius: 16px;
  border: 1.5px solid var(--card-border, #e2e8f0);
  margin-bottom: 14px;
  overflow-x: auto;
  scrollbar-width: none;
}
.topic-master-nav-bar::-webkit-scrollbar { display: none; }

.topic-master-nav-btn {
  flex: 1;
  min-width: 130px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted, #64748b);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  text-align: center;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.topic-master-nav-btn:hover {
  background: var(--card-bg, #ffffff);
  color: var(--text-main, #0f172a);
}
.topic-master-nav-btn.active {
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
  color: #ffffff !important;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
}

.topic-sub-nav-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  overflow-x: auto;
  scrollbar-width: none;
}
.topic-sub-nav-bar::-webkit-scrollbar { display: none; }

.topic-sub-nav-btn {
  padding: 7px 16px;
  border-radius: 99px;
  border: 1.5px solid var(--card-border, #cbd5e1);
  background: var(--card-bg, #ffffff);
  color: var(--text-main, #334155);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.18s ease;
}
.topic-sub-nav-btn.active {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  border-color: #059669;
  color: #ffffff;
  box-shadow: 0 3px 10px rgba(5, 150, 105, 0.25);
}
/* ==============================================================
   🎯 টপিক প্রশ্নভান্ডারের ৩টি মূল মোড ট্যাব ও সাব-ট্যাব স্টাইল (PC & Mobile)
   ============================================================== */
.topic-master-nav-bar {
  display: flex;
  gap: 8px;
  background: var(--stat-box-bg, #f8fafc);
  padding: 6px;
  border-radius: 16px;
  border: 1.5px solid var(--card-border, #e2e8f0);
  margin-bottom: 14px;
  width: 100%;
  box-sizing: border-box;
}

.topic-master-nav-btn {
  flex: 1 1 0%;
  min-width: 0;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted, #64748b);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  text-align: center;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.topic-master-nav-btn:hover {
  background: var(--card-bg, #ffffff);
  color: var(--text-main, #0f172a);
}

.topic-master-nav-btn.active {
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
  color: #ffffff !important;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
}

.topic-sub-nav-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  width: 100%;
  box-sizing: border-box;
}

.topic-sub-nav-btn {
  padding: 8px 16px;
  border-radius: 99px;
  border: 1.5px solid var(--card-border, #cbd5e1);
  background: var(--card-bg, #ffffff);
  color: var(--text-main, #334155);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.18s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.topic-sub-nav-btn.active {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  border-color: #059669;
  color: #ffffff !important;
  box-shadow: 0 3px 10px rgba(5, 150, 105, 0.25);
}

/* 📱 মোবাইল ভিউ (Screen <= 768px) — ১০০% বাউন্ডারি লকড */
@media (max-width: 768px) {
  .topic-master-nav-bar {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) !important;
    gap: 6px !important;
    padding: 6px !important;
    width: 100% !important;
    max-width: 100% !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
  }

  /* ১ম বাটন (জব সল্যুশন টপিকভিত্তিক) ১ম লাইনে সম্পূর্ণ ১০০% জায়গা নেবে */
  .topic-master-nav-btn[data-msec="job_solution"],
  .topic-master-nav-btn[data-msec="topic_job_solution"] {
    grid-column: 1 / -1 !important;
    width: 100% !important;
    font-size: 13px !important;
    padding: 9px 10px !important;
  }

  /* ২য় ও ৩য় বাটন ২য় লাইনে সমান ৫০%-৫০% ভাগে বসবে, ১ পিক্সেলও ডানে যাবে না */
  .topic-master-nav-btn {
    flex: unset !important;
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
    padding: 8px 4px !important;
    font-size: 12px !important;
    gap: 4px !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    box-sizing: border-box !important;
  }

  /* সাব-ট্যাব (Daily/Weekly/Monthly বা পরীক্ষাভিত্তিক/টপিকভিত্তিক) এক লাইনে সমান ভাগে বসবে */
  .topic-sub-nav-bar {
    display: flex !important;
    width: 100% !important;
    gap: 6px !important;
    margin-bottom: 12px !important;
    overflow: hidden !important;
  }

  .topic-sub-nav-btn {
    flex: 1 1 0% !important;
    min-width: 0 !important;
    padding: 7px 4px !important;
    font-size: 11.5px !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
  }

  /* কার্ড ও বাটন রেসপনসিভ ফিক্স */
  .lmcq-main-title {
    font-size: 16.5px !important;
  }
  .lmcq-sub-stats {
    font-size: 12px !important;
    line-height: 1.4 !important;
    margin-bottom: 10px !important;
  }
  .lmcq-card {
    padding: 14px 12px !important;
    border-radius: 16px !important;
    margin-bottom: 12px !important;
  }
  .lmcq-card-top {
    margin-bottom: 10px !important;
  }
  .lmcq-card-title {
    font-size: 15px !important;
  }
  .lmcq-card-middle {
    margin-bottom: 12px !important;
    gap: 8px !important;
  }
  .lmcq-progress-left {
    gap: 8px !important;
  }
  .lmcq-ring-wrap, .lmcq-ring-svg {
    width: 50px !important;
    height: 50px !important;
  }
  .lmcq-ring-label {
    font-size: 9px !important;
  }
  .lmcq-pct-text {
    font-size: 12px !important;
    line-height: 1.3 !important;
  }
  .lmcq-meta-right {
    font-size: 11.5px !important;
    padding-left: 8px !important;
    line-height: 1.45 !important;
  }
  .lmcq-card-actions {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) !important;
    gap: 7px !important;
  }
  .lmcq-card-actions .act-rand-quiz:nth-child(3) {
    grid-column: 1 / -1 !important;
  }
  .lmcq-btn-pill {
    height: 36px !important;
    font-size: 12px !important;
    padding: 0 8px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }
}

/* ==============================================================
   🎯 Full Syllabus Model Test Program Styles
   ============================================================== */
.model-track-card {
  background: var(--card-bg, #ffffff);
  border: 1.5px solid var(--card-border, #e2e8f0);
  border-radius: 16px;
  padding: 16px 18px;
  margin-bottom: 12px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  box-shadow: var(--card-shadow, 0 1px 3px rgba(0,0,0,0.05));
}
.model-track-card:hover {
  transform: translateY(-2px);
  border-color: #8b5cf6;
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.12);
}
.model-track-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
}
.model-track-title {
  margin: 4px 0 6px;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--text-main, #0f172a);
}
.model-track-desc {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--text-muted, #64748b);
  line-height: 1.45;
}
.model-track-progress-wrap {
  background: var(--stat-box-bg, #f1f5f9);
  height: 8px;
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 10px;
}
.model-track-progress-bar {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, #2563eb, #7c3aed);
  transition: width 0.4s ease;
}


/* ==============================================================
   🚀 Floating Action Dock (Back to Top, AI Help, WhatsApp)
   ============================================================== */
.sjm-floating-action-dock {
  position: fixed !important;
  right: 16px !important;
  bottom: 24px !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: flex-end !important;
  gap: 10px !important;
  z-index: 1000000 !important; /* Higher than mobile-bottom-nav and app header */
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease !important;
  pointer-events: none !important; /* Allow clicking through empty spaces */
}

@media (max-width: 768px) {
  .sjm-floating-action-dock {
    right: 12px !important;
    bottom: 82px !important; /* Sits clearly above .mobile-bottom-nav */
    gap: 8px !important;
  }
}

.sjm-dock-btn {
  pointer-events: auto !important; /* Crucial since dock has pointer-events: none */
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 99px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  font-family: inherit;
}

.sjm-dock-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.22);
}

.sjm-dock-btn:active {
  transform: translateY(0);
}

/* Scroll To Top */
.sjm-back-to-top-btn {
  width: 42px;
  height: 42px;
  background: var(--card-bg, #ffffff);
  color: var(--text-main, #0f172a);
  border: 1.5px solid var(--card-border, #cbd5e1);
  font-size: 16px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: scale(0.85);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}

.sjm-back-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: scale(1);
}

/* AI Help Trigger (Round Floating Button with 'AI' only) */
.sjm-ai-help-btn {
  width: 48px !important;
  height: 48px !important;
  min-width: 48px !important;
  min-height: 48px !important;
  border-radius: 50% !important;
  padding: 0 !important;
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%) !important;
  color: #ffffff !important;
  font-size: 16px !important;
  font-weight: 900 !important;
  letter-spacing: 0.5px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.45) !important;
}

.sjm-ai-help-btn .ai-btn-text {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 900;
  font-size: 16px;
  line-height: 1;
}

/* WhatsApp Float Button (Round Floating Button with icon only) */
.sjm-whatsapp-btn {
  width: 48px !important;
  height: 48px !important;
  min-width: 48px !important;
  min-height: 48px !important;
  border-radius: 50% !important;
  padding: 0 !important;
  background: #25D366 !important;
  color: #ffffff !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.45) !important;
}

.sjm-whatsapp-btn svg {
  width: 26px !important;
  height: 26px !important;
}

/* ==============================================================
   🤖 Smart AI Help Center Drawer / Modal
   ============================================================== */
.ai-help-drawer-overlay {
  position: fixed !important;
  inset: 0 !important;
  background: rgba(15, 23, 42, 0.65) !important;
  backdrop-filter: blur(6px) !important;
  -webkit-backdrop-filter: blur(6px) !important;
  z-index: 1000001 !important; /* Above everything */
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  padding: 16px;
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .ai-help-drawer-overlay {
    padding: 0;
    align-items: flex-end;
  }
}

.ai-help-drawer-content {
  background: var(--card-bg, #ffffff);
  border: 1px solid var(--card-border, #e2e8f0);
  border-radius: 20px;
  width: 100%;
  max-width: 440px;
  height: 580px;
  max-height: calc(100vh - 36px);
  display: flex;
  flex-direction: column;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  animation: sjmSlideUp 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (max-width: 768px) {
  .ai-help-drawer-overlay {
    padding: 0 !important;
    align-items: flex-end !important;
    justify-content: center !important;
  }
  .ai-help-drawer-content {
    max-width: 100% !important;
    width: 100% !important;
    height: 82vh !important;
    max-height: 85vh !important;
    min-height: 400px !important;
    border-radius: 20px 20px 0 0 !important;
    border-bottom: none !important;
  }
}

@keyframes sjmSlideUp {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.ai-help-header {
  padding: 12px 16px;
  background: var(--stat-box-bg, #f8fafc);
  border-bottom: 1px solid var(--card-border, #e2e8f0);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ai-avatar-badge {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.3);
}

.ai-help-close-btn {
  border: none;
  background: transparent;
  color: var(--text-muted, #64748b);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
}
.ai-help-close-btn:hover {
  background: var(--card-border, #e2e8f0);
  color: var(--text-main, #0f172a);
}

.ai-help-chips-wrap {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  overflow-x: auto;
  scrollbar-width: none;
  background: var(--bg-base, #ffffff);
  border-bottom: 1px solid var(--card-border, #e2e8f0);
  flex-shrink: 0;
}
.ai-help-chips-wrap::-webkit-scrollbar { display: none; }

.ai-prompt-chip {
  padding: 5px 11px;
  border-radius: 99px;
  border: 1px solid var(--card-border, #cbd5e1);
  background: var(--stat-box-bg, #f8fafc);
  color: var(--text-main, #334155);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}
.ai-prompt-chip:hover {
  border-color: #7c3aed;
  background: #ede9fe;
  color: #5b21b6;
}

.ai-help-messages {
  flex: 1 1 auto;
  min-height: 180px;
  padding: 14px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bg-base, #ffffff);
}

.ai-msg {
  display: flex;
  flex-direction: column;
  max-width: 88%;
  font-size: 13.5px;
  line-height: 1.5;
  word-break: break-word;
}
.ai-msg.user {
  align-self: flex-end;
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
  color: #ffffff;
  padding: 10px 14px;
  border-radius: 14px 14px 2px 14px;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}
.ai-msg.bot {
  align-self: flex-start;
  background: var(--stat-box-bg, #f1f5f9);
  color: var(--text-main, #0f172a);
  padding: 12px 14px;
  border-radius: 14px 14px 14px 2px;
  border: 1px solid var(--card-border, #e2e8f0);
}

.ai-action-btn-cluster {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
}
.ai-action-btn {
  background: var(--card-bg, #ffffff);
  border: 1.5px solid #8b5cf6;
  color: #6d28d9;
  padding: 7px 12px;
  border-radius: 10px;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.ai-action-btn:hover {
  background: #7c3aed;
  color: #ffffff;
}

.ai-help-input-bar {
  padding: 10px 14px;
  background: var(--stat-box-bg, #f8fafc);
  border-top: 1px solid var(--card-border, #e2e8f0);
  display: flex;
  gap: 8px;
  align-items: center;
}
.ai-help-input-bar input {
  flex: 1;
  padding: 9px 13px;
  border-radius: 10px;
  border: 1.5px solid var(--card-border, #cbd5e1);
  background: var(--card-bg, #ffffff);
  color: var(--text-main, #0f172a);
  font-size: 13.5px;
  outline: none;
}
.ai-help-input-bar input:focus {
  border-color: #7c3aed;
}
.ai-help-input-bar button {
  padding: 9px 13px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}