/* UI Component Styles - Ridian Digital / Publicsuites Editorial Theme */

/* 1. Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background-color: rgba(239, 246, 241, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
  box-shadow: 0 4px 20px rgba(11, 27, 51, 0.04);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--display);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--ink);
  color: var(--brass);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(11, 27, 51, 0.15);
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-family: var(--body);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-soft);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0;
}

.nav-link:hover, .nav-link:focus {
  color: var(--ink);
}

.nav-link svg {
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link svg {
  transform: rotate(180deg);
}

/* Mega Menu */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: 820px;
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.75rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  z-index: 1100;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
}

.nav-item:hover .mega-menu,
.nav-item:focus-within .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.mega-card {
  display: flex;
  align-items: flex-start;
  gap: 1.0rem;
  padding: 0.85rem;
  border-radius: var(--radius-xs);
  transition: background-color var(--transition-fast);
}

.mega-card:hover {
  background: var(--green-soft);
}

.mega-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--green-soft);
  color: var(--brass-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mega-title {
  font-family: var(--body);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.2rem;
}

.mega-desc {
  font-size: 0.825rem;
  color: var(--ink-soft);
  line-height: 1.4;
}

.mega-highlight {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.mega-highlight-tag {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--brass-deep);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.mega-highlight-title {
  font-family: var(--display);
  font-weight: 700;
  color: var(--ink);
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.mega-highlight-text {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  font-family: var(--body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
}

.btn-primary {
  background: var(--brass);
  color: #ffffff;
  border: 1px solid var(--brass-deep);
  box-shadow: 0 4px 14px rgba(44, 195, 107, 0.3);
}

.btn-primary:hover {
  background: var(--brass-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(24, 150, 82, 0.4);
}

.btn-secondary {
  background: var(--paper-card);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.btn-secondary:hover {
  border-color: var(--ink-soft);
  background: #ffffff;
  transform: translateY(-2px);
}

.btn-link {
  color: var(--ink-soft);
  font-weight: 600;
}
.btn-link:hover {
  color: var(--ink);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1200;
}

.mobile-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--ink);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* 2. Feature Cards & Grids */
.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.card-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.glass-card {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.25rem 2rem;
  transition: all var(--transition-normal);
  position: relative;
  box-shadow: var(--shadow);
}

.glass-card:hover {
  border-color: var(--brass);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--green-soft);
  border: 1px solid rgba(44, 195, 107, 0.3);
  color: var(--brass-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.card-title {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.65;
}

/* 3. Interactive Tab Controller */
.tab-navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
  background: var(--paper-card);
  padding: 0.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  max-width: max-content;
  margin-left: auto;
  margin-right: auto;
}

.tab-btn {
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-pill);
  font-family: var(--body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink-soft);
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--ink);
}

.tab-btn.active {
  background: var(--ink);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(11, 27, 51, 0.2);
}

.tab-pane {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 4. Pricing Cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}

.pricing-card {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.25rem 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow);
}

.pricing-card.popular {
  border: 2px solid var(--brass);
  box-shadow: 0 12px 36px rgba(44, 195, 107, 0.15);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brass);
  color: #ffffff;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-pill);
  letter-spacing: 0.05em;
}

.plan-name {
  font-family: var(--display);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.plan-desc {
  font-size: 0.875rem;
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
  min-height: 40px;
}

.plan-price {
  font-family: var(--display);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}

.plan-price span {
  font-family: var(--body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.feature-item svg {
  color: var(--brass-deep);
  flex-shrink: 0;
}

/* 5. FAQ Accordion */
.faq-container {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition-fast);
  box-shadow: var(--shadow);
}

.faq-item.active {
  border-color: var(--brass);
}

.faq-button {
  width: 100%;
  padding: 1.35rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
}

.faq-icon {
  width: 24px;
  height: 24px;
  transition: transform var(--transition-fast);
  color: var(--ink-soft);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--brass-deep);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.75rem;
}

.faq-item.active .faq-content {
  padding: 0 1.75rem 1.5rem 1.75rem;
}

.faq-content p {
  color: var(--ink-soft);
  font-size: 0.975rem;
  line-height: 1.65;
}

/* 6. Footer */
.footer {
  background: var(--ink);
  color: #ffffff;
  padding: 5rem 0 2.5rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-brand .logo {
  color: #ffffff;
}

.footer-desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 320px;
  line-height: 1.6;
}

.footer-title {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--brass);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}