/* ===================================================
   MANUAL PAGE STYLES — HELP & DOCUMENT CENTER
   =================================================== */

/* Page Background & Layout */
body.manual-bg {
  background: #f8fafc;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: 64px; /* Nav height */
}

/* Hero Banner Section */
.manual-hero {
  background: linear-gradient(135deg, #103490 0%, #154ed1 50%, #2563eb 100%);
  color: #fff;
  padding: var(--sp-12) 0;
  position: relative;
  overflow: hidden;
}

.manual-hero::before {
  content: '';
  position: absolute;
  top: -150px;
  right: -150px;
  width: 450px;
  height: 450px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.manual-hero__content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-8);
  position: relative;
  z-index: 1;
}

.manual-hero__title {
  font-size: var(--text-3xl);
  font-weight: 800;
  margin-bottom: var(--sp-2);
  letter-spacing: -0.01em;
}

.manual-hero__subtitle {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  line-height: 1.6;
}

/* Main Container */
.manual-main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: var(--sp-8) auto;
  padding: 0 var(--sp-8);
}

.manual-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--sp-8);
  align-items: start;
}

/* Sidebar Catalog styling */
.manual-sidebar {
  background: #fff;
  border-radius: var(--r-lg);
  padding: var(--sp-6) var(--sp-4);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  position: sticky;
  top: 84px;
}

.sidebar-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--sp-4);
  padding-left: var(--sp-2);
  border-left: 3px solid var(--blue-600);
}

.sidebar-group {
  margin-bottom: var(--sp-5);
}

.sidebar-group__title {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-2);
  padding: var(--sp-1) var(--sp-2);
}

.sidebar-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.sidebar-menu__item a {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--text-sm);
  color: var(--gray-600);
  border-radius: var(--r-sm);
  font-weight: 500;
  transition: all var(--dur-fast);
  cursor: pointer;
}

.sidebar-menu__item a:hover {
  color: var(--blue-600);
  background: var(--blue-50);
}

.sidebar-menu__item.active a {
  color: var(--blue-600);
  background: var(--blue-50);
  font-weight: 600;
}

.sidebar-menu__icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  transition: transform var(--dur-fast);
}

.sidebar-menu__item a:hover .sidebar-menu__icon {
  transform: translateX(2px);
}

/* Right Content Viewport */
.manual-content {
  background: #fff;
  border-radius: var(--r-lg);
  padding: var(--sp-8);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  min-height: 550px;
}

/* Dashboard Default view styling */
.doc-dashboard {
  animation: fadeIn 0.4s var(--ease-out-quart);
}

.section-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--sp-4);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--gray-100);
}

/* Document Grid */
.doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--sp-5);
  margin-bottom: var(--sp-8);
}

/* Document Cards */
.doc-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  transition: all var(--dur-norm) var(--ease-out-quart);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 180px;
}

.doc-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-200);
  background: #fff;
}

.doc-card__meta {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}

.doc-card__icon-wrapper {
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.doc-card__icon-wrapper.pdf {
  background: #fef2f2;
  color: #ef4444;
}

.doc-card__icon-wrapper.excel {
  background: #ecfdf5;
  color: #10b981;
}

.doc-card__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-900);
  line-height: 1.4;
  margin-bottom: var(--sp-1);
}

.doc-card__desc {
  font-size: var(--text-xs);
  color: var(--gray-500);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.doc-card__actions {
  display: flex;
  gap: var(--sp-2);
  margin-top: auto;
}

.doc-card__btn {
  flex: 1;
  padding: 6px 12px;
  border-radius: var(--r-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  text-align: center;
  transition: all var(--dur-fast);
  cursor: pointer;
}

.doc-card__btn-view {
  background: var(--blue-50);
  color: var(--blue-600);
}

.doc-card__btn-view:hover {
  background: var(--blue-600);
  color: #fff;
}

.doc-card__btn-download {
  background: var(--gray-100);
  color: var(--gray-600);
}

.doc-card__btn-download:hover {
  background: var(--gray-200);
  color: var(--gray-900);
}

.doc-card__btn-excel {
  background: #ecfdf5;
  color: #10b981;
  border: 1px solid #10b981;
}

.doc-card__btn-excel:hover {
  background: #10b981;
  color: #fff;
}

/* File detail indicators */
.doc-card__size {
  font-size: 10px;
  color: var(--gray-400);
  margin-top: auto;
}

/* PDF Preview Frame */
.doc-viewer {
  display: none;
  flex-direction: column;
  animation: fadeIn 0.4s var(--ease-out-quart);
}

.doc-viewer.active {
  display: flex;
}

.doc-viewer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--gray-100);
  margin-bottom: var(--sp-4);
}

.doc-viewer__title-wrapper {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.doc-viewer__back-btn {
  background: var(--gray-100);
  border-radius: var(--r-sm);
  padding: 6px 12px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--gray-600);
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  transition: all var(--dur-fast);
}

.doc-viewer__back-btn:hover {
  background: var(--gray-200);
  color: var(--gray-900);
}

.doc-viewer__title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--gray-900);
}

.doc-viewer__actions {
  display: flex;
  gap: var(--sp-2);
}

.doc-viewer__btn {
  padding: 6px 12px;
  border-radius: var(--r-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  transition: all var(--dur-fast);
}

.doc-viewer__btn-primary {
  background: var(--blue-600);
  color: #fff;
}

.doc-viewer__btn-primary:hover {
  background: var(--blue-700);
}

.doc-viewer__btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}

.doc-viewer__btn-secondary:hover {
  background: var(--gray-200);
}

.doc-viewer__frame-container {
  position: relative;
  width: 100%;
  height: 650px;
  background: var(--gray-100);
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--gray-200);
}

.doc-viewer__iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: #fff;
}

.doc-viewer__fallback {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--sp-8);
  text-align: center;
  background: var(--gray-50);
}

.doc-viewer__fallback-icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--sp-4);
  color: var(--gray-400);
}

.doc-viewer__fallback-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: var(--sp-2);
}

.doc-viewer__fallback-desc {
  font-size: var(--text-sm);
  color: var(--gray-500);
  margin-bottom: var(--sp-6);
  max-width: 400px;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===================================================
   FOOTER COPIED & REUSED
   =================================================== */
footer {
  background: var(--gray-900);
  color: rgba(255, 255, 255, .75);
  padding: var(--sp-12) 0 var(--sp-8);
  margin-top: auto;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-12);
  margin-bottom: var(--sp-12);
}

.footer__brand-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
}

.footer__brand-tagline {
  font-size: var(--text-base);
  font-weight: 700;
  color: #fff;
  font-style: italic;
}

.footer__col-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--sp-4);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.footer__links li a {
  font-size: var(--text-sm);
  transition: color var(--dur-fast);
  color: rgba(255, 255, 255, .75);
}

.footer__links li a:hover {
  color: #fff;
}

.footer__qrs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-6);
  margin-top: var(--sp-6);
}
.footer__qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
}

.footer__qr-img {
  width: 120px;
  height: 120px;
  border-radius: var(--r-lg);
  background: #fff;
  padding: 6px;
  display: block;
  object-fit: contain;
}

.footer__qr-label {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, .6);
  text-align: center;
  line-height: 1.4;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--sp-8);
  border-top: 1px solid rgba(255, 255, 255, .08);
  font-size: var(--text-sm);
}

.footer__icp a {
  color: rgba(255, 255, 255, .4);
  transition: color var(--dur-fast);
}

.footer__icp a:hover {
  color: rgba(255, 255, 255, .8);
}

/* ===================================================
   RESPONSIVE DESIGN FOR MANUAL PAGE
   =================================================== */
@media (max-width: 1024px) {
  .manual-layout {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }
  .manual-sidebar {
    position: static;
  }
  .footer__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .manual-hero {
    padding: var(--sp-8) 0;
  }
  .manual-hero__title {
    font-size: var(--text-2xl);
  }
  .manual-content {
    padding: var(--sp-5);
  }
  .doc-grid {
    grid-template-columns: 1fr;
  }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }
  .footer__bottom {
    flex-direction: column;
    gap: var(--sp-4);
    text-align: center;
    font-size: var(--text-xs);
  }
  .doc-viewer__frame-container {
    height: 450px;
  }
  /* On mobile, online preview can be replaced with direct new tab since viewport is too small */
  .doc-viewer__iframe {
    display: none;
  }
  .doc-viewer__fallback {
    position: relative;
    background: transparent;
  }
}