/**
 * SkillCertify Pro - Assessment Brief Stylesheet (Phase AB2)
 *
 * Dedicated, authoritative stylesheet for /exam/{skill}/{track}/
 * Standardized with SkillCertify tokens: Deep Navy, Cobalt, Emerald, Slate.
 * Scope-contained, accessible, fully responsive (desktop to mobile).
 *
 * @package Minimal Theme
 */

:root {
  --scp-brief-navy: #0f172a;
  --scp-brief-cobalt: #2563eb;
  --scp-brief-cobalt-hover: #1d4ed8;
  --scp-brief-emerald: #059669;
  --scp-brief-emerald-bg: #ecfdf5;
  --scp-brief-slate-dark: #334155;
  --scp-brief-slate: #64748b;
  --scp-brief-slate-light: #94a3b8;
  --scp-brief-border: #e2e8f0;
  --scp-brief-border-focus: #cbd5e1;
  --scp-brief-bg-subtle: #f8fafc;
  --scp-brief-white: #ffffff;
  --scp-brief-radius: 10px;
  --scp-brief-shadow: 0 1px 3px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.03);
  --scp-brief-shadow-card: 0 4px 12px rgba(15, 23, 42, 0.05);
}

/* Base Wrapper */
.scp-brief-main {
  width: 100%;
  color: var(--scp-brief-navy);
  font-family: inherit;
  background-color: #fafbfc;
  min-height: calc(100vh - 160px);
}

.scp-brief-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.scp-brief-hero {
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  border-bottom: 1px solid var(--scp-brief-border);
  padding: 24px 0 28px;
}

/* Breadcrumb Navigation */
.scp-brief-breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--scp-brief-slate);
  margin-bottom: 16px;
  line-height: 1.4;
}

.scp-brief-breadcrumbs a {
  color: var(--scp-brief-slate);
  text-decoration: none;
  transition: color 0.15s ease;
}

.scp-brief-breadcrumbs a:hover,
.scp-brief-breadcrumbs a:focus {
  color: var(--scp-brief-cobalt);
  text-decoration: underline;
}

.scp-brief-breadcrumbs .sep {
  color: var(--scp-brief-slate-light);
  user-select: none;
}

.scp-brief-breadcrumbs .current {
  color: var(--scp-brief-slate-dark);
  font-weight: 500;
}

/* Badges Bar */
.scp-brief-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.scp-level-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.scp-level-badge.l1 {
  background-color: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

.scp-level-badge.l2 {
  background-color: #f0fdf4;
  color: #15803d;
  border: 1px solid #bbf7d0;
}

.scp-level-badge.l3 {
  background-color: #fefce8;
  color: #a16207;
  border: 1px solid #fef08a;
}

.scp-level-badge.l4 {
  background-color: #fdf2f8;
  color: #be185d;
  border: 1px solid #fbcfe8;
}

.scp-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 500;
  background-color: #f1f5f9;
  color: #475569;
  border: 1px solid #e2e8f0;
}

.scp-status-badge.active {
  background-color: #ecfdf5;
  color: #065f46;
  border-color: #a7f3d0;
}

.scp-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
}

/* Title & Subtitle */
.scp-brief-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--scp-brief-navy);
  margin: 0 0 10px 0;
  letter-spacing: -0.015em;
}

.scp-brief-subtitle {
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--scp-brief-slate-dark);
  max-width: 800px;
  margin: 0 0 16px 0;
}

/* Submeta Bar */
.scp-brief-submeta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: var(--scp-brief-slate);
}

.scp-submeta-item strong {
  color: var(--scp-brief-slate-dark);
  font-weight: 600;
}

.scp-submeta-sep {
  color: var(--scp-brief-slate-light);
  user-select: none;
}

/* ==========================================================================
   Specifications Matrix (4 Pillars)
   ========================================================================== */
.scp-specs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
  margin-bottom: 28px;
}

.scp-spec-card {
  background: var(--scp-brief-white);
  border: 1px solid var(--scp-brief-border);
  border-radius: var(--scp-brief-radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--scp-brief-shadow);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.scp-spec-card:hover {
  border-color: #cbd5e1;
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.06);
}

.scp-spec-icon {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background-color: #eff6ff;
  color: var(--scp-brief-cobalt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.scp-spec-icon svg {
  width: 16px;
  height: 16px;
}

.scp-spec-primary {
  font-size: 18.5px;
  font-weight: 700;
  color: var(--scp-brief-navy);
  margin-bottom: 2px;
  line-height: 1.25;
}

.scp-spec-secondary {
  font-size: 14px;
  font-weight: 500;
  color: var(--scp-brief-slate);
  line-height: 1.35;
}

/* ==========================================================================
   Body Layout (2-Column Desktop Grid)
   ========================================================================== */
.scp-brief-body {
  padding-bottom: 60px;
}

.scp-brief-layout-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  grid-template-rows: max-content 1fr;
  gap: 32px;
  align-items: start;
}

.scp-brief-main-col {
  grid-column: 1;
  grid-row: 1 / span 2;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.scp-brief-action-zone {
  grid-column: 2;
  grid-row: 1;
}

.scp-brief-practice-zone {
  grid-column: 2;
  grid-row: 2;
}

.scp-brief-section {
  background: transparent;
}

.scp-section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--scp-brief-navy);
  margin: 0 0 8px 0;
  letter-spacing: -0.01em;
}

.scp-section-desc {
  font-size: 14.5px;
  color: var(--scp-brief-slate);
  margin: 0 0 16px 0;
  line-height: 1.5;
}

/* Assessed Competencies / Curriculum List */
.scp-brief-topics-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.scp-brief-topic-row {
  background: var(--scp-brief-white);
  border: 1px solid var(--scp-brief-border);
  border-left: 3px solid var(--scp-brief-cobalt);
  border-radius: 8px;
  padding: 16px 18px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  box-shadow: var(--scp-brief-shadow);
}

.scp-topic-info {
  flex: 1;
}

.scp-topic-name {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--scp-brief-navy);
  margin: 0 0 4px 0;
}

.scp-topic-description {
  font-size: 13.5px;
  color: var(--scp-brief-slate-dark);
  margin: 0;
  line-height: 1.5;
}

.scp-topic-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11.5px;
  font-weight: 500;
  background-color: #f1f5f9;
  color: #475569;
  white-space: nowrap;
}

/* Examination Rules Card */
.scp-rules-card {
  background: var(--scp-brief-white);
  border: 1px solid var(--scp-brief-border);
  border-radius: var(--scp-brief-radius);
  padding: 22px 24px;
  box-shadow: var(--scp-brief-shadow);
}

.scp-rules-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.scp-rules-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.scp-rule-icon {
  width: 20px;
  height: 20px;
  color: var(--scp-brief-emerald);
  flex-shrink: 0;
  margin-top: 2px;
}

.scp-rule-content {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--scp-brief-slate-dark);
}

.scp-rule-content strong {
  display: block;
  font-size: 14px;
  color: var(--scp-brief-navy);
  margin-bottom: 2px;
}

/* ==========================================================================
   Action Zone & Launch Card
   ========================================================================== */
.scp-brief-action-zone {
  display: block;
}

.scp-brief-practice-zone {
  display: block;
}

.scp-brief-sidebar {
  position: static;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.scp-launch-card {
  background: var(--scp-brief-white);
  border: 1px solid var(--scp-brief-border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--scp-brief-shadow-card);
}

.scp-launch-card-header {
  margin-bottom: 16px;
}

.scp-launch-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--scp-brief-navy);
  margin: 0 0 6px 0;
}

.scp-launch-card-specs {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--scp-brief-cobalt);
  margin: 0 0 6px 0;
  letter-spacing: -0.01em;
}

.scp-launch-card-subtitle {
  font-size: 13.5px;
  color: var(--scp-brief-slate);
  margin: 0 0 16px 0;
  line-height: 1.45;
}

/* Pre-flight Checklist */
.scp-preflight-checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 20px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.scp-preflight-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--scp-brief-slate-dark);
  line-height: 1.4;
}

.scp-preflight-checklist svg {
  width: 16px;
  height: 16px;
  color: var(--scp-brief-emerald);
  flex-shrink: 0;
  margin-top: 1px;
}

/* Launch Action Controls */
.scp-btn-launch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 48px;
  padding: 0 20px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
  box-sizing: border-box;
}

.scp-btn-launch.active {
  background-color: var(--scp-brief-cobalt);
  color: var(--scp-brief-white);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
}

.scp-btn-launch.active:hover {
  background-color: var(--scp-brief-cobalt-hover);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.scp-btn-launch.resume {
  background-color: var(--scp-brief-emerald);
  color: var(--scp-brief-white);
  box-shadow: 0 2px 6px rgba(5, 150, 105, 0.25);
}

.scp-btn-launch.resume:hover {
  background-color: #047857;
  box-shadow: 0 4px 10px rgba(5, 150, 105, 0.35);
  transform: translateY(-1px);
}

.scp-btn-launch.disabled {
  background-color: #f1f5f9;
  color: #94a3b8;
  border: 1px solid var(--scp-brief-border);
  cursor: not-allowed;
  box-shadow: none;
}

.scp-btn-launch.loading {
  background-color: #60a5fa;
  color: var(--scp-brief-white);
  cursor: wait;
  box-shadow: none;
}

.scp-launch-guarantee {
  font-size: 12px;
  color: var(--scp-brief-slate);
  text-align: center;
  margin-top: 12px;
  line-height: 1.4;
}

/* Active Session In-Progress Notice */
.scp-active-session-notice {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 16px;
  font-size: 13px;
  color: #065f46;
  line-height: 1.45;
}

.scp-active-session-notice strong {
  display: block;
  font-weight: 600;
  margin-bottom: 2px;
}

/* Feedback alert */
.scp-preflight-feedback {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.4;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

/* Practice Sidebar Box */
.scp-practice-card {
  background: var(--scp-brief-white);
  border: 1px solid var(--scp-brief-border);
  border-radius: var(--scp-brief-radius);
  padding: 18px 20px;
  box-shadow: var(--scp-brief-shadow);
}

.scp-practice-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--scp-brief-navy);
  margin: 0 0 6px 0;
}

.scp-practice-desc {
  font-size: 13px;
  color: var(--scp-brief-slate);
  margin: 0 0 14px 0;
  line-height: 1.45;
}

.scp-btn-practice {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  height: 38px;
  padding: 0 14px;
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 500;
  background-color: var(--scp-brief-bg-subtle);
  border: 1px solid var(--scp-brief-border);
  color: var(--scp-brief-slate-dark);
  text-decoration: none;
  transition: all 0.15s ease;
  box-sizing: border-box;
}

.scp-btn-practice:hover {
  background-color: #f1f5f9;
  border-color: #cbd5e1;
  color: var(--scp-brief-navy);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1024px) {
  .scp-specs-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .scp-brief-layout-grid {
    display: flex;
    flex-direction: column;
    gap: 28px;
  }

  .scp-brief-action-zone,
  .scp-brief-main-col,
  .scp-brief-practice-zone {
    width: 100%;
  }

  .scp-brief-sidebar {
    position: static;
    top: auto;
  }
}

@media (max-width: 640px) {
  .scp-brief-hero {
    padding: 18px 0 22px;
  }

  .scp-brief-title {
    font-size: 24px;
  }

  .scp-brief-subtitle {
    font-size: 14.5px;
  }

  .scp-specs-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 18px;
    margin-bottom: 20px;
  }

  .scp-spec-card {
    padding: 12px 10px;
  }

  .scp-spec-icon {
    width: 26px;
    height: 26px;
    margin-bottom: 6px;
  }

  .scp-spec-icon svg {
    width: 14px;
    height: 14px;
  }

  .scp-spec-primary {
    font-size: 16.5px;
  }

  .scp-spec-secondary {
    font-size: 13.5px;
  }

  .scp-brief-container {
    padding: 0 16px;
  }

  .scp-brief-layout-grid {
    gap: 24px;
  }

  .scp-brief-main-col {
    gap: 24px;
  }

  .scp-launch-card {
    padding: 20px 16px;
  }

  .scp-launch-card-title {
    font-size: 17px;
  }

  .scp-launch-card-specs {
    font-size: 14px;
  }

  .scp-launch-card-subtitle {
    font-size: 13px;
    margin-bottom: 14px;
  }

  .scp-launch-guarantee {
    font-size: 12px;
    margin-top: 10px;
  }
}

@media (max-width: 340px) {
  .scp-specs-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .scp-spec-card {
    padding: 12px 14px;
  }
}