/* =====================================================
   KINGDOM HERALD MINISTRY — Shared Design System
   ===================================================== */

/* =====================================================
   CSS Custom Properties (Design Tokens)
   ===================================================== */

:root {
  --bg:          #faf7f2;
  --bg-card:     #f5f0e8;
  --bg-raised:   #ede8df;
  --nav-bg:      rgba(250,247,242,0.97);
  --text-1:      #1a1a1a;
  --text-2:      #4a4a4a;
  --text-3:      #7a7a7a;
  --accent:      #b8650a;
  --accent-h:    #cf730c;
  --border:      #e8e0d4;
  --border-2:    #d4c8bb;
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.07);
  --shadow:      0 3px 10px rgba(0,0,0,0.09);
  --ff-heading:  'Lora', Georgia, serif;
  --ff-body:     'Source Sans 3', 'Segoe UI', system-ui, sans-serif;
  --max-prose:   740px;
  --max-wide:    1100px;
  --transition:  0.2s ease;
  --radius:      4px;
}

body.dark-mode {
  --bg:          #1c1510;
  --bg-card:     #261d16;
  --bg-raised:   #312520;
  --nav-bg:      rgba(28,21,16,0.97);
  --text-1:      #f0e8da;
  --text-2:      #c8b89a;
  --text-3:      #8a7a6a;
  --accent:      #d4870d;
  --accent-h:    #e8960e;
  --border:      #3a2820;
  --border-2:    #4a3428;
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.30);
  --shadow:      0 3px 10px rgba(0,0,0,0.40);
}

/* =====================================================
   Base Reset
   ===================================================== */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 17px; }
body {
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--ff-body);
  line-height: 1.75;
  min-height: 100vh;
  transition: background 0.25s, color 0.25s;
}
a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; font-family: inherit; }
ul, ol { list-style: none; }

/* =====================================================
   Navigation
   ===================================================== */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 5%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--ff-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: 0.01em;
  flex-shrink: 0;
}
.nav-logo-icon {
  width: 30px;
  height: 30px;
  border-radius: var(--radius);
  flex-shrink: 0;
  display: none;
}
.nav-logo-text { display: inline; }
@media (max-width: 480px) {
  .nav-logo-text { display: none; }
  .nav-logo-icon { display: block; }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.125rem;
}

.nav-btn {
  background: none;
  border: none;
  color: var(--text-3);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
  flex-shrink: 0;
}
.nav-btn:hover { background: var(--bg-raised); color: var(--accent); }
.nav-btn svg { width: 19px; height: 19px; }
.nav-btn .icon-moon { display: block; }
.nav-btn .icon-sun  { display: none; }
body.dark-mode .nav-btn .icon-moon { display: none; }
body.dark-mode .nav-btn .icon-sun  { display: block; }

.nav-menu-btn {
  flex-direction: column;
  gap: 4px;
}
.nav-menu-btn span {
  display: block;
  width: 19px;
  height: 1.5px;
  background: var(--text-3);
  border-radius: 2px;
  transition: background var(--transition);
}
.nav-menu-btn:hover span { background: var(--accent); }

.nav-dropdown {
  display: none;
  position: fixed;
  top: 67px;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 850;
  padding: 0.5rem 5% 0.875rem;
  flex-direction: column;
  gap: 0;
}
.nav-dropdown.active { display: flex; }
.nav-dropdown a {
  display: block;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-2);
  transition: background var(--transition), color var(--transition);
}
.nav-dropdown a:hover { color: var(--accent); background: var(--bg-card); }
.nav-dropdown a.nav-active { color: var(--accent); }
.nav-dropdown .nav-cta {
  margin-top: 0.5rem;
  color: var(--accent) !important;
  border: 1.5px solid var(--accent);
  text-align: center;
}
.nav-dropdown .nav-cta:hover {
  background: var(--accent) !important;
  color: white !important;
}

.search-overlay {
  display: none;
  position: fixed;
  top: 67px;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 860;
  padding: 0.875rem 5%;
}
.search-overlay.active { display: block; }
.search-form { display: flex; gap: 0.5rem; max-width: 560px; margin: 0 auto; }
.search-input {
  flex: 1;
  padding: 0.65rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--ff-body);
  font-size: 1rem;
  color: var(--text-1);
}
.search-input:focus { outline: none; border-color: var(--accent); }
.search-input::placeholder { color: var(--text-3); }
.search-submit {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 0.65rem 1.25rem;
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: background var(--transition);
}
.search-submit:hover { background: var(--accent-h); }

/* =====================================================
   Buttons
   ===================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--ff-body);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform 0.15s;
  border: 1.5px solid transparent;
  line-height: 1.4;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--accent); color: white; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-h); border-color: var(--accent-h); color: white; }

.btn-outline { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: white; }

.btn-ghost { background: transparent; color: var(--text-2); border-color: var(--border-2); }
.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }

.btn-sm { padding: 0.45rem 1rem; font-size: 0.8rem; }
.btn-lg { padding: 0.875rem 2rem; font-size: 1rem; }

/* Course "Begin Course" CTA — used on library + homepage course cards */
.course-begin-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: var(--accent);
  color: #fff;
  font-family: var(--ff-body);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  padding: 0.6rem 1.375rem;
  border-radius: var(--radius);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition), transform 0.15s;
}
.course-begin-btn::after { content: " →"; }
.course-begin-btn:hover { background: var(--accent-h); transform: translateY(-1px); color: #fff; }
.course-begin-btn:active { transform: translateY(0); }

/* =====================================================
   Footer
   ===================================================== */

.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 3rem 5% 2rem;
  text-align: center;
  margin-top: auto;
}
.footer-inner { max-width: var(--max-wide); margin: 0 auto; }
.footer-logo {
  font-family: var(--ff-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  display: inline-block;
  margin-bottom: 0.625rem;
}
.footer-verse {
  font-style: italic;
  color: var(--text-3);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  max-width: 460px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}
.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
  margin-bottom: 1.5rem;
}
.footer-nav a {
  color: var(--text-3);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  transition: color var(--transition);
  padding: 0.25rem 0;
}
.footer-nav a:hover { color: var(--accent); }
.footer-social {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.footer-social a {
  color: var(--text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.footer-social a:hover { color: var(--accent); border-color: var(--accent); background: var(--bg-raised); }
.footer-social svg { width: 17px; height: 17px; fill: currentColor; }
.footer-copyright { color: var(--text-3); font-size: 0.78rem; }

/* =====================================================
   Cards
   ===================================================== */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.card:hover { border-color: var(--border-2); }

/* =====================================================
   Badges
   ===================================================== */

.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.badge-essential { background: rgba(184,101,10,0.13); color: var(--accent); }
.badge-advanced  { background: rgba(70,90,140,0.12); color: #4a5a8c; }
body.dark-mode .badge-advanced { background: rgba(100,130,200,0.15); color: #8aaae0; }
.badge-draft     { background: rgba(140,70,70,0.12); color: #8c4040; }
body.dark-mode .badge-draft { background: rgba(200,100,100,0.12); color: #e09090; }
.badge-published { background: rgba(60,130,80,0.12); color: #2a7a40; }
body.dark-mode .badge-published { background: rgba(80,180,100,0.12); color: #6aba80; }
.badge-unlisted  { background: rgba(180,120,40,0.12); color: #7a5010; }
body.dark-mode .badge-unlisted { background: rgba(220,160,60,0.12); color: #c0a050; }

/* =====================================================
   Prose
   ===================================================== */

.prose {
  color: var(--text-1);
  font-size: 1.05rem;
  line-height: 1.85;
}
.prose h1, .prose h2, .prose h3, .prose h4, .prose h5 {
  font-family: var(--ff-heading);
  color: var(--text-1);
  margin: 2rem 0 0.75rem;
  line-height: 1.3;
}
.prose h2 { font-size: 1.45rem; border-bottom: 1px solid var(--border); padding-bottom: 0.4rem; }
.prose h3 { font-size: 1.15rem; }
.prose h4 { font-size: 1rem; }
.prose p { margin-bottom: 1.25rem; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.prose a:hover { color: var(--accent-h); }
.prose blockquote {
  border-left: 3px solid var(--accent);
  margin: 1.5rem 0;
  padding: 0.75rem 1.25rem;
  background: var(--bg-card);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--text-2);
}
.prose ul, .prose ol {
  margin: 0 0 1.25rem 1.5rem;
  list-style: revert;
}
.prose li { margin-bottom: 0.35rem; }
.prose strong { font-weight: 700; color: var(--text-1); }
.prose em { font-style: italic; }
.prose code {
  background: var(--bg-raised);
  padding: 0.1em 0.35em;
  border-radius: 3px;
  font-size: 0.88em;
  font-family: 'SFMono-Regular', Consolas, monospace;
}
.prose pre {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 1.25rem 0;
}
.prose pre code { background: none; padding: 0; }
.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}
.prose img {
  max-width: 100%;
  border-radius: var(--radius);
  margin: 1.25rem 0;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.95rem;
  overflow-x: auto;
  display: block;
}
.prose th, .prose td {
  padding: 0.6rem 0.875rem;
  border: 1px solid var(--border);
  text-align: left;
}
.prose th { background: var(--bg-raised); font-weight: 700; }
.prose tr:nth-child(even) td { background: var(--bg-card); }
.prose sup, .prose sub { font-size: 0.75em; }
.prose del { text-decoration: line-through; color: var(--text-3); }

/* =====================================================
   Layout Utilities
   ===================================================== */

.container       { max-width: var(--max-wide);  margin: 0 auto; padding: 0 5%; }
.container-prose { max-width: var(--max-prose); margin: 0 auto; padding: 0 5%; }
.section    { padding: 4rem 0; }
.section-sm { padding: 2.5rem 0; }

.page-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 4rem 5% 3.5rem;
  text-align: center;
}
.page-header h1 {
  font-family: var(--ff-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.2;
  margin-bottom: 0.75rem;
}
.page-header h1 span { color: var(--accent); }
.page-header p {
  color: var(--text-2);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

.loading     { text-align: center; padding: 3rem; color: var(--text-3); font-size: 0.95rem; }
.empty-state { text-align: center; padding: 4rem 2rem; color: var(--text-3); }
.empty-state h3 { font-family: var(--ff-heading); color: var(--text-2); margin-bottom: 0.75rem; }

/* Divider */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* Section label */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

/* Reading progress bar */
.reading-progress-bar-wrap {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 999;
  background: var(--border);
}
.reading-progress-bar-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.1s linear;
}

/* =====================================================
   Responsive
   ===================================================== */

@media (max-width: 768px) {
  html { font-size: 16px; }
  .page-header { padding: 2.5rem 5% 2.5rem; }
  .section    { padding: 2.5rem 0; }
  .section-sm { padding: 1.5rem 0; }
}