/* CAP Learning Hub - SkillsClinic Themed */
/* Blends with SkillsClinic's minimalist, high-contrast design */

:root {
  /* SkillsClinic core palette */
  --sc-primary: #1a1a1a;
  --sc-accent: #0066cc;
  --sc-accent-hover: #0052a3;
  --sc-bg: #ffffff;
  --sc-bg-alt: #f8f9fa;
  --sc-bg-muted: #f1f3f5;
  --sc-text: #1a1a1a;
  --sc-text-muted: #6b7280;
  --sc-text-light: #9ca3af;
  --sc-border: #e5e7eb;
  --sc-border-dark: #d1d5db;

  /* CAP educational accent colors */
  --cap-blue: #0066cc;
  --cap-dark-blue: #004999;
  --cap-navy: #1a1a1a;
  --cap-green: #059669;
  --cap-orange: #d97706;
  --cap-red: #dc2626;
  --cap-purple: #7c3aed;

  /* Level colors */
  --l1-color: #059669;
  --l2-color: #0066cc;
  --l3-color: #7c3aed;
  --l4-color: #d97706;
  --l5-color: #dc2626;

  /* Legacy compat aliases */
  --caew-navy: #1a1a1a;
  --caew-blue: #0066cc;
  --caew-dark-blue: #004999;
  --caew-accent: #dc2626;
  --caew-green: #059669;
  --caew-orange: #d97706;
  --caew-light-bg: #ffffff;
  --caew-card-bg: #ffffff;
  --caew-text: #1a1a1a;
  --caew-text-light: #6b7280;
  --caew-border: #e5e7eb;
  --caew-gradient-start: #1a1a1a;
  --caew-gradient-end: #1a1a1a;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Base */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: var(--font-family);
  color: var(--sc-text);
  background-color: var(--sc-bg);
  line-height: 1.7;
  font-size: 1rem;
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  font-weight: 700;
  color: var(--sc-text);
  line-height: 1.25;
}

a {
  color: var(--sc-accent);
  text-decoration: none;
  transition: color 150ms ease;
}
a:hover {
  color: var(--sc-accent-hover);
}

img { max-width: 100%; height: auto; }

/* ============================================================
   HEADER / NAVBAR - SkillsClinic style
   ============================================================ */

.caew-navbar {
  background: var(--sc-primary) !important;
  padding: 0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.caew-navbar .navbar-brand {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.3px;
  color: #fff !important;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.caew-navbar .navbar-brand span {
  color: rgba(255,255,255,0.5);
  font-weight: 400;
  font-size: 0.85rem;
}

.caew-navbar .nav-link {
  color: rgba(255,255,255,0.7) !important;
  font-weight: 500;
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem !important;
  border-radius: 6px;
  transition: all 150ms ease;
}

.caew-navbar .nav-link:hover {
  color: #fff !important;
  background: rgba(255,255,255,0.08);
}

.caew-navbar .nav-link.active {
  color: #fff !important;
  background: rgba(255,255,255,0.12);
}

/* Breadcrumb */
.caew-breadcrumb {
  background: transparent;
  padding: 0.75rem 0 0.5rem;
  margin-bottom: 0;
}

.caew-breadcrumb .breadcrumb-item a {
  color: var(--sc-accent);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.85rem;
}

.caew-breadcrumb .breadcrumb-item.active {
  color: var(--sc-text-muted);
  font-size: 0.85rem;
}

/* ============================================================
   HERO SECTION
   ============================================================ */

.caew-hero {
  background: var(--sc-primary) !important;
  color: #fff;
  padding: 3rem 0 2.5rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.caew-hero::after {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0,102,204,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.caew-hero h1 {
  color: #fff;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
  line-height: 1.15;
}

.caew-hero .lead {
  font-size: 1.1rem;
  opacity: 0.8;
  max-width: 700px;
  position: relative;
  z-index: 1;
  line-height: 1.6;
}

/* Post Meta */
.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  color: rgba(255,255,255,0.7);
  font-size: 0.875rem;
  margin-top: 1rem;
  position: relative;
  z-index: 1;
}

.post-meta i { margin-right: 0.3rem; }

/* Level Badge */
.level-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.85rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.level-badge.l1 { background: rgba(5,150,105,0.12); color: var(--l1-color); }
.level-badge.l2 { background: rgba(0,102,204,0.12); color: var(--l2-color); }
.level-badge.l3 { background: rgba(124,58,237,0.12); color: var(--l3-color); }
.level-badge.l4 { background: rgba(217,119,6,0.12); color: var(--l4-color); }
.level-badge.l5 { background: rgba(220,38,38,0.12); color: var(--l5-color); }

/* ============================================================
   CONTENT CARDS & ARTICLE
   ============================================================ */

.content-card {
  background: var(--sc-bg);
  border: 1px solid var(--sc-border);
  border-radius: 12px;
  box-shadow: none;
  padding: 2.5rem 3rem;
  margin-bottom: 1.5rem;
}

.article-content h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--sc-border);
  color: var(--sc-text);
}

.article-content h3 {
  font-size: 1.2rem;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  color: var(--cap-dark-blue);
}

.article-content p {
  margin-bottom: 1.1rem;
  color: var(--sc-text);
  line-height: 1.7;
}

.article-content ul, .article-content ol {
  margin-bottom: 1.1rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.4rem;
  line-height: 1.6;
}

/* ============================================================
   CALLOUT BOXES
   ============================================================ */

.callout {
  border-left: 4px solid var(--sc-accent);
  background: rgba(0,102,204,0.03);
  padding: 1.25rem 1.5rem;
  border-radius: 0 8px 8px 0;
  margin: 1.5rem 0;
}

.callout.callout-tip {
  border-left-color: var(--cap-green);
  background: rgba(5,150,105,0.03);
}

.callout.callout-warning {
  border-left-color: var(--cap-orange);
  background: rgba(217,119,6,0.03);
}

.callout.callout-important {
  border-left-color: var(--cap-red);
  background: rgba(220,38,38,0.03);
}

.callout-title {
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
  color: var(--sc-text);
}

/* Key takeaway box */
.key-takeaway {
  background: var(--sc-bg-alt);
  border: 1px solid var(--sc-border);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  margin: 2rem 0;
}

.key-takeaway h4 {
  color: var(--cap-dark-blue);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

/* ============================================================
   TABLE OF CONTENTS
   ============================================================ */

.toc-card {
  background: var(--sc-bg);
  border: 1px solid var(--sc-border);
  border-radius: 12px;
  padding: 1.5rem;
  position: sticky;
  top: 72px;
}

.toc-card h5 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--sc-text-muted);
  margin-bottom: 1rem;
}

.toc-card .nav-link {
  color: var(--sc-text);
  padding: 0.3rem 0;
  font-size: 0.85rem;
  border-left: 2px solid transparent;
  padding-left: 0.75rem;
  transition: all 150ms ease;
}

.toc-card .nav-link:hover,
.toc-card .nav-link.active {
  color: var(--sc-accent);
  border-left-color: var(--sc-accent);
  background: transparent;
}

/* TOC list variant */
.toc-list {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.toc-link {
  display: block;
  color: var(--sc-text);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.4rem 0.75rem;
  border-left: 2px solid transparent;
  border-radius: 0 4px 4px 0;
  transition: all 150ms ease;
}

.toc-link:hover,
.toc-link.active {
  color: var(--sc-accent);
  border-left-color: var(--sc-accent);
  background: rgba(0,102,204,0.03);
}

/* ============================================================
   PROGRESS BAR
   ============================================================ */

.progress-bar-reading {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--sc-accent);
  z-index: 9999;
  transition: width 0.1s ease;
}

/* ============================================================
   NAVIGATION CARDS
   ============================================================ */

.chapter-nav-card {
  background: var(--sc-bg);
  border: 1px solid var(--sc-border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  text-decoration: none !important;
  display: block;
  transition: all 200ms ease;
  height: 100%;
}

.chapter-nav-card:hover {
  border-color: var(--sc-accent);
  box-shadow: 0 4px 12px rgba(0,102,204,0.08);
  transform: translateY(-2px);
}

.chapter-nav-card .card-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--sc-text-muted);
  margin-bottom: 0.35rem;
}

.chapter-nav-card .card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--sc-text);
  line-height: 1.4;
}

/* ============================================================
   LESSON GRID CARDS
   ============================================================ */

.lesson-grid-card {
  background: var(--sc-bg);
  border: 1px solid var(--sc-border);
  border-radius: 12px;
  padding: 1.5rem;
  text-decoration: none !important;
  display: block;
  transition: all 200ms ease;
  height: 100%;
}

.lesson-grid-card:hover {
  border-color: var(--sc-accent);
  box-shadow: 0 4px 16px rgba(0,102,204,0.08);
  transform: translateY(-2px);
}

.lesson-grid-card .lesson-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}

.lesson-grid-card .lesson-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--sc-text);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.lesson-grid-card .lesson-desc {
  font-size: 0.85rem;
  color: var(--sc-text-muted);
  line-height: 1.6;
}

.lesson-grid-card .lesson-meta {
  font-size: 0.78rem;
  color: var(--sc-text-light);
  margin-top: 0.75rem;
}

/* ============================================================
   FOOTER - SkillsClinic style
   ============================================================ */

.caew-footer {
  background: var(--sc-primary);
  color: rgba(255,255,255,0.6);
  padding: 3rem 0 1.5rem;
  margin-top: 3rem;
}

.caew-footer h6 {
  color: #fff;
  font-weight: 700;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.caew-footer a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 150ms ease;
}

.caew-footer a:hover {
  color: var(--sc-accent);
}

.caew-footer .footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  margin-top: 2rem;
  font-size: 0.8rem;
}

/* ============================================================
   VIDEO SECTION
   ============================================================ */

.video-section {
  display: none;
  margin-bottom: 0;
}

.video-card {
  background: var(--sc-bg);
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  border: 1px solid var(--sc-border);
  overflow: hidden;
}

.video-card-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--sc-primary);
  color: white;
  font-weight: 700;
  font-size: 0.9rem;
}

.video-card-header i { font-size: 1.3rem; }

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  background: #000;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 575.98px) {
  body { font-size: 0.95rem; line-height: 1.65; }

  .caew-hero { padding: 2rem 0 1.5rem; margin-bottom: 1.25rem; }
  .caew-hero h1 { font-size: 1.5rem; line-height: 1.2; }
  .caew-hero .lead { font-size: 0.9rem; }
  .caew-hero::after { display: none; }

  .post-meta { gap: 0.5rem 0.75rem; font-size: 0.78rem; margin-top: 0.75rem; }
  .level-badge { font-size: 0.68rem; padding: 0.2rem 0.55rem; }

  .caew-breadcrumb { padding: 0.5rem 0 0.25rem; }
  .caew-breadcrumb .breadcrumb-item a,
  .caew-breadcrumb .breadcrumb-item.active { font-size: 0.78rem; }

  .content-card { padding: 1.25rem 1rem; border-radius: 8px; margin-bottom: 1.25rem; }
  .article-content h2 { font-size: 1.2rem; margin-top: 1.75rem; }
  .article-content h3 { font-size: 1.05rem; margin-top: 1.5rem; }
  .article-content p { font-size: 0.95rem; margin-bottom: 1rem; }
  .article-content ul, .article-content ol { padding-left: 1.15rem; }
  .article-content li { font-size: 0.95rem; }

  .callout { padding: 1rem; margin: 1rem 0; }
  .callout-title { font-size: 0.78rem; }
  .key-takeaway { padding: 1.15rem 1rem; margin: 1.25rem 0; }

  .lesson-grid-card { padding: 1.15rem; }
  .lesson-grid-card .lesson-title { font-size: 0.92rem; }
  .lesson-grid-card .lesson-desc { font-size: 0.8rem; }
  .lesson-grid-card .lesson-meta { font-size: 0.75rem; }
  .lesson-grid-card .lesson-number { width: 34px; height: 34px; font-size: 0.9rem; border-radius: 8px; }

  .chapter-nav-card { padding: 0.9rem 1rem; }
  .chapter-nav-card .card-label { font-size: 0.68rem; }
  .chapter-nav-card .card-title { font-size: 0.82rem; }

  .toc-card { display: none; }

  .caew-navbar { padding: 0.5rem 0; }
  .caew-navbar .navbar-brand { font-size: 0.95rem; }
  .caew-navbar .nav-link { font-size: 0.85rem; padding: 0.5rem 0.75rem !important; }

  .caew-footer { padding: 2rem 0 1rem; margin-top: 2rem; }
  .caew-footer h6 { font-size: 0.8rem; margin-bottom: 0.6rem; margin-top: 0.5rem; }
  .caew-footer a, .caew-footer p { font-size: 0.8rem !important; }
  .caew-footer .footer-bottom { margin-top: 1.25rem; padding-top: 1rem; font-size: 0.75rem; }

  .video-section .container { padding-left: 8px; padding-right: 8px; }
  .video-card { border-radius: 8px; }
  .video-card-header { padding: 0.6rem 0.85rem; font-size: 0.8rem; }

  .container { padding-left: 16px; padding-right: 16px; }
}

@media (min-width: 576px) and (max-width: 767.98px) {
  .caew-hero h1 { font-size: 1.75rem; }
  .caew-hero .lead { font-size: 1rem; }
  .caew-hero { padding: 2.25rem 0; }
  .content-card { padding: 1.5rem 1.25rem; }
  .article-content h2 { font-size: 1.3rem; }
  .article-content h3 { font-size: 1.1rem; }
  .toc-card { display: none; }
  .caew-footer { padding: 2.25rem 0 1.25rem; }
}

@media (min-width: 768px) and (max-width: 991.98px) {
  .caew-hero h1 { font-size: 2rem; }
  .caew-hero .lead { font-size: 1.05rem; }
  .content-card { padding: 2rem; }
  .article-content h2 { font-size: 1.4rem; }
  .toc-card { position: static; margin-bottom: 1.5rem; }
  .lesson-grid-card { padding: 1.25rem; }
  .caew-footer { padding: 2.5rem 0 1.25rem; }
}

@media (min-width: 992px) {
  .caew-hero h1 { font-size: 2.5rem; }
}

/* Responsive sidebar */
@media (max-width: 991.98px) {
  .sticky-lg-top { position: static !important; }
}

/* Touch targets on tablet/mobile */
@media (max-width: 991.98px) {
  .caew-navbar .nav-link { padding: 0.6rem 1rem !important; }
  .caew-footer li { margin-bottom: 0.5rem !important; }
  .caew-footer a { display: inline-block; padding: 0.15rem 0; }
}

/* Responsive tables */
.article-content table {
  width: 100%;
  overflow-x: auto;
  display: block;
  -webkit-overflow-scrolling: touch;
}

/* No horizontal overflow */
html, body { overflow-x: hidden; }

/* Smooth scroll */
html { scroll-behavior: smooth; }

/* Print */
@media print {
  .caew-navbar, .caew-footer, .toc-card, .progress-bar-reading,
  .chapter-nav-card, .post-meta { display: none !important; }
  .content-card { box-shadow: none; border: none; padding: 0; }
}

/* bg-dark compat */
footer.bg-dark a.text-white-50:hover {
  color: var(--sc-accent) !important;
}