/* =========================================================
   CloudCraft AWS Academy - Natural Enterprise Design System
   Color Palette: Warm Porcelain, Natural Slate, Architectural Amber, Forest Emerald
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Canvas & Surfaces */
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-subtle: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #fcfcfd;
  
  /* Natural Slate Typography */
  --text-main: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;
  
  /* Borders & Dividers */
  --border-subtle: #e2e8f0;
  --border-hover: #cbd5e1;
  --border-focus: #ea580c;

  /* Primary Brand: AWS Architectural Amber */
  --primary: #ea580c;
  --primary-hover: #c2410c;
  --primary-light: #fff7ed;
  --primary-border: #ffedd5;
  
  /* Secondary: Sky Azure */
  --azure: #0284c7;
  --azure-hover: #0369a1;
  --azure-light: #f0f9ff;
  --azure-border: #e0f2fe;

  /* Status Colors */
  --success: #059669;
  --success-light: #ecfdf5;
  --success-border: #a7f3d0;
  
  --warning: #d97706;
  --warning-light: #fffbeb;
  --warning-border: #fde68a;
  
  --danger: #e11d48;
  --danger-light: #fff1f2;
  --danger-border: #fecdd3;
  
  --purple: #7c3aed;
  --purple-light: #f5f3ff;
  --purple-border: #ddd6fe;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.03);
  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
  --shadow-modal: 0 25px 50px -12px rgba(15, 23, 42, 0.25);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* =========================================================
   HEADER & NAVIGATION
   ========================================================= */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: 1380px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  cursor: pointer;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(234, 88, 12, 0.28);
}

.brand-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: #ffffff;
  stroke-width: 2.2;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-title span {
  color: var(--primary);
}

.brand-tag {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-body);
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  cursor: pointer;
}

.nav-link:hover {
  background-color: var(--bg-surface-subtle);
  color: var(--text-main);
}

.nav-link.active {
  background-color: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-border);
}

.nav-link.admin-pill {
  background-color: var(--purple-light);
  color: var(--purple);
  border-color: var(--purple-border);
}

/* Header User Profile & Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0284c7 0%, #38bdf8 100%);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-info {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.user-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
}

.user-role-tag {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* Logout Button */
#logoutBtn {
  display: inline-flex !important;
  align-items: center !important;
  gap: 5px !important;
  font-weight: 600 !important;
  font-size: 0.82rem !important;
  padding: 6px 14px !important;
  border-radius: var(--radius-full, 9999px) !important;
  background: rgba(239, 68, 68, 0.08) !important;
  border: 1px solid rgba(239, 68, 68, 0.3) !important;
  color: #dc2626 !important;
  cursor: pointer !important;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

#logoutBtn:hover {
  background: rgba(239, 68, 68, 0.18) !important;
  border-color: #ef4444 !important;
  color: #b91c1c !important;
  box-shadow: 0 2px 10px rgba(239, 68, 68, 0.2) !important;
  transform: translateY(-1px);
}

/* Status Pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
}

.status-pill.approved {
  background-color: var(--success-light);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.status-pill.pending {
  background-color: var(--warning-light);
  color: var(--warning);
  border: 1px solid var(--warning-border);
}

.status-pill.suspended {
  background-color: var(--danger-light);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

/* Common Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  font-family: inherit;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(234, 88, 12, 0.25);
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
}

.btn-outline:hover {
  background-color: var(--bg-surface-subtle);
  border-color: var(--border-hover);
  color: var(--text-main);
}

.btn-secondary {
  background-color: var(--azure);
  color: #ffffff;
}

.btn-secondary:hover {
  background-color: var(--azure-hover);
}

.btn-success {
  background-color: var(--success);
  color: #ffffff;
}

.btn-success:hover {
  background-color: #047857;
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 0.78rem;
}

/* =========================================================
   PAGE LAYOUT & CONTAINER
   ========================================================= */
main {
  flex: 1;
  max-width: 1380px;
  width: 100%;
  margin: 0 auto;
  padding: 24px;
}

/* Notice Banner */
.notice-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  font-size: 0.9rem;
  line-height: 1.4;
  box-shadow: var(--shadow-sm);
}

.notice-banner.warning {
  background-color: #fffbeb;
  border: 1px solid #fef08a;
  color: #92400e;
}

.notice-banner.info {
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
}

.notice-banner strong {
  font-weight: 700;
}

/* Hero Section */
.hero-header {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.hero-header::after {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(234, 88, 12, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  margin-bottom: 8px;
}

.hero-content h1 span {
  color: var(--primary);
}

.hero-content p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 650px;
}

.hero-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.cert-pill {
  padding: 4px 10px;
  background-color: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-body);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}

.stat-box {
  background-color: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  text-align: center;
  min-width: 120px;
  box-shadow: var(--shadow-sm);
}

.stat-val {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}

.stat-lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  margin-top: 4px;
}

/* =========================================================
   FILTER BAR & TABS
   ========================================================= */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.level-tabs {
  display: flex;
  align-items: center;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  padding: 4px;
  border-radius: var(--radius-md);
  gap: 4px;
  flex-wrap: wrap;
}

.level-tab {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  border: none;
  background: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.level-tab:hover {
  color: var(--text-main);
}

.level-tab.active {
  background-color: #ffffff;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  font-weight: 700;
}

.select-filter {
  padding: 8px 14px;
  background-color: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: inherit;
  color: var(--text-main);
  outline: none;
  cursor: pointer;
}

/* =========================================================
   TEST PAPERS GRID & CARDS
   ========================================================= */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}

.test-card {
  background-color: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.test-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(234, 88, 12, 0.35);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.level-badge {
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.level-badge.foundations {
  background-color: #ecfeff;
  color: #0891b2;
  border: 1px solid #a5f3fc;
}

.level-badge.associate {
  background-color: #eff6ff;
  color: #2563eb;
  border: 1px solid #bfdbfe;
}

.level-badge.pro {
  background-color: #fdf2f8;
  color: #db2777;
  border: 1px solid #fbcfe8;
}

.level-badge.specialty {
  background-color: var(--purple-light);
  color: var(--purple);
  border: 1px solid var(--purple-border);
}

.cert-tag {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.test-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.35;
}

.test-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.5;
}

.test-meta-strip {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  margin-bottom: 18px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.test-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* =========================================================
   EXAM COCKPIT VIEW
   ========================================================= */
.exam-container {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
}

.exam-main {
  background-color: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.exam-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.exam-timer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.exam-timer.urgent {
  background-color: var(--danger-light);
  color: var(--danger);
  border-color: var(--danger-border);
  animation: pulse-danger 1.5s infinite;
}

.question-scenario {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text-main);
  margin-bottom: 24px;
  padding: 18px;
  background-color: var(--bg-surface-subtle);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
}

.options-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.option-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background-color: #ffffff;
  cursor: pointer;
  transition: all 0.15s ease;
}

.option-item:hover {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.option-item.selected {
  border-color: var(--primary);
  background-color: var(--primary-light);
  box-shadow: 0 0 0 1px var(--primary);
}

.option-key {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background-color: var(--bg-surface-subtle);
  color: var(--text-body);
  font-weight: 700;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--border-subtle);
}

.option-item.selected .option-key {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.option-text {
  font-size: 0.92rem;
  color: var(--text-body);
  line-height: 1.45;
}

.exam-nav-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}

/* Exam Sidebar Palette */
.exam-sidebar {
  background-color: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  height: fit-content;
}

.sidebar-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}

.palette-btn {
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface-subtle);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-body);
  cursor: pointer;
  transition: all 0.15s ease;
}

.palette-btn.current {
  border: 2px solid var(--primary);
  color: var(--primary);
}

.palette-btn.answered {
  background-color: var(--success);
  color: #ffffff;
  border-color: var(--success);
}

.palette-btn.flagged {
  background-color: var(--warning);
  color: #ffffff;
  border-color: var(--warning);
}

.palette-legend {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* =========================================================
   SCORECARD & DETAILED REVIEW
   ========================================================= */
.scorecard-header {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  text-align: center;
  margin-bottom: 28px;
  box-shadow: var(--shadow-card);
}

.scorecard-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.scorecard-badge.pass {
  background-color: var(--success-light);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.scorecard-badge.fail {
  background-color: var(--danger-light);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

.score-number {
  font-size: 3.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--text-main);
  line-height: 1;
}

.domain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.domain-card {
  background-color: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.domain-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.88rem;
  font-weight: 700;
}

.progress-track {
  height: 8px;
  background-color: var(--bg-surface-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background-color: var(--primary);
  transition: width 0.6s ease;
}

/* Question Review Card */
.review-card {
  background-color: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.review-card.correct {
  border-left: 5px solid var(--success);
}

.review-card.incorrect {
  border-left: 5px solid var(--danger);
}

.review-explanation {
  background-color: #f8fafc;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-top: 16px;
  font-size: 0.9rem;
  line-height: 1.6;
}

.review-explanation h4 {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 6px;
}

.cli-pill {
  font-family: var(--font-mono);
  background-color: #0f172a;
  color: #38bdf8;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  cursor: pointer;
}

.cli-pill:hover {
  background-color: #1e293b;
}

/* =========================================================
   AWS CLOUDSHELL TERMINAL
   ========================================================= */
.shell-wrapper {
  background-color: #0f172a;
  border: 1px solid #334155;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.4);
  overflow: hidden;
  font-family: var(--font-mono);
}

.shell-header {
  background-color: #1e293b;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #334155;
}

.shell-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.shell-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.shell-dot.red { background-color: #ef4444; }
.shell-dot.yellow { background-color: #f59e0b; }
.shell-dot.green { background-color: #10b981; }

.shell-title {
  color: #94a3b8;
  font-size: 0.8rem;
  font-weight: 600;
}

.shell-quick-chips {
  padding: 12px 16px;
  background-color: #182234;
  border-bottom: 1px solid #334155;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.chip-btn {
  background-color: #0f172a;
  border: 1px solid #334155;
  color: #38bdf8;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.chip-btn:hover {
  background-color: #1e293b;
  border-color: #38bdf8;
}

.shell-body {
  padding: 20px;
  height: 480px;
  overflow-y: auto;
  color: #e2e8f0;
  font-size: 0.88rem;
  line-height: 1.5;
}

.shell-line {
  margin-bottom: 12px;
  white-space: pre-wrap;
  word-break: break-all;
}

.shell-prompt {
  color: #10b981;
  font-weight: 600;
}

.shell-cmd {
  color: #fb923c;
  font-weight: 600;
}

.shell-output {
  color: #cbd5e1;
  margin-top: 4px;
}

.shell-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.shell-input {
  flex: 1;
  background: transparent;
  border: none;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  outline: none;
}

/* =========================================================
   ADMIN PANEL TABLE & MODALS
   ========================================================= */
.admin-card {
  background-color: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
  margin-bottom: 24px;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.custom-table th {
  padding: 12px 16px;
  background-color: var(--bg-surface-subtle);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border-subtle);
}

.custom-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.88rem;
  color: var(--text-body);
}

.custom-table tr:hover td {
  background-color: #f8fafc;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  transition: all 0.2s ease;
}

.modal-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.modal-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 540px;
  width: 100%;
  box-shadow: var(--shadow-modal);
  padding: 32px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 1.3rem;
  color: var(--text-muted);
  cursor: pointer;
}

/* Forms */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.15s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.15);
}

/* Toast */
.toast-msg {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: #0f172a;
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  z-index: 100000;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: opacity 0.3s ease;
}

/* =========================================================
   COMPREHENSIVE RESPONSIVE ENGINE (MOBILE & LAPTOP)
   ========================================================= */
@media (max-width: 1024px) {
  .header-container {
    padding: 10px 18px;
    gap: 12px;
    flex-wrap: wrap;
  }
  .exam-container {
    grid-template-columns: 1fr;
  }
  .cards-grid {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  }
  .admin-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 10px 14px;
  }
  .brand-wrapper {
    justify-content: center;
  }
  .brand-tag {
    display: none;
  }
  .cloud-switcher-pills {
    margin: 0 auto;
    width: 100%;
    max-width: 380px;
    justify-content: center;
  }
  .cloud-pill-btn {
    padding: 5px 12px;
    font-size: 0.78rem;
    flex: 1;
    justify-content: center;
  }
  nav {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
    scrollbar-width: none;
  }
  nav::-webkit-scrollbar {
    display: none;
  }
  .nav-menu {
    display: flex;
    flex-wrap: nowrap;
    white-space: nowrap;
    gap: 4px;
    padding-bottom: 2px;
  }
  .nav-link {
    padding: 6px 12px;
    font-size: 0.82rem;
  }
  .auth-controls {
    justify-content: center;
    width: 100%;
  }
  .hero-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 16px;
    gap: 16px;
  }
  .cards-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .level-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    width: 100%;
  }
  .level-tabs::-webkit-scrollbar {
    display: none;
  }
  .level-tab {
    padding: 6px 12px;
    font-size: 0.78rem;
    flex-shrink: 0;
  }
  .modal-card {
    padding: 20px 16px;
    max-width: calc(100vw - 24px);
    max-height: 90vh;
    overflow-y: auto;
  }
  .shell-window {
    min-height: 380px;
    font-size: 0.8rem;
  }
  .admin-stats-grid {
    grid-template-columns: 1fr;
  }
  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 480px) {
  .brand-title {
    font-size: 1.1rem;
  }
  .brand-icon {
    width: 34px;
    height: 34px;
  }
  .exam-question-card {
    padding: 16px 14px;
  }
  .exam-option-item {
    padding: 10px 12px;
    font-size: 0.85rem;
  }
  .test-card {
    padding: 18px 14px;
  }
  .test-meta-strip {
    flex-direction: column;
    gap: 6px;
    align-items: flex-start;
  }
  .palette-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* =========================================================
   SCORECARD METRICS & COLLAPSIBLE DOMAIN RADAR
   ========================================================= */
.scorecard-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.scorecard-stat-card {
  display: flex;
  align-items: center;
  gap: 16px;
  text-align: left;
  padding: 18px 20px;
  background: var(--card-bg, #ffffff);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg, 12px);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.scorecard-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
}

.scorecard-stat-card.card-orange {
  border-left: 4px solid #ea580c;
}
.scorecard-stat-card.card-blue {
  border-left: 4px solid #0284c7;
}
.scorecard-stat-card.card-green {
  border-left: 4px solid #16a34a;
}
.scorecard-stat-card.card-purple {
  border-left: 4px solid #8b5cf6;
}

.stat-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.card-orange .stat-card-icon {
  background: rgba(234, 88, 12, 0.12);
  color: #ea580c;
}
.card-blue .stat-card-icon {
  background: rgba(2, 132, 199, 0.12);
  color: #0284c7;
}
.card-green .stat-card-icon {
  background: rgba(22, 163, 74, 0.12);
  color: #16a34a;
}
.card-purple .stat-card-icon {
  background: rgba(139, 92, 246, 0.12);
  color: #8b5cf6;
}

.stat-card-content {
  flex: 1;
  min-width: 0;
}

.stat-card-val {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-main);
}

.card-blue .stat-card-val {
  color: #0284c7;
}
.card-green .stat-card-val {
  color: #16a34a;
}

.stat-card-lbl {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  margin-top: 4px;
}

.stat-card-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.collapsible-radar-card {
  transition: box-shadow 0.2s ease;
  margin-bottom: 24px;
}

.collapsible-radar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  flex-wrap: wrap;
  gap: 12px;
  padding: 4px 0;
}

.radar-header-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(2, 132, 199, 0.1);
  color: #0284c7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
}

.domain-radar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.domain-radar-card {
  background: var(--bg-surface-subtle, #f8fafc);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md, 8px);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.domain-radar-card:hover {
  transform: translateY(-1px);
  border-color: #cbd5e1;
}