/* ==========================================================================
   Components (Navbar, Cards, Buttons, Forms, Footer)
   ========================================================================== */

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  padding: 1rem 0;
  z-index: 1000;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.navbar--scrolled {
  background: var(--navbar-bg, rgba(14, 16, 25, 0.85));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  padding: 0.75rem 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar__links {
  display: flex;
  gap: 0.85rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.navbar__links a {
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--text-primary);
  transition: color 0.2s;
}
.navbar__links a:hover {
  color: #3b82f6;
}

@media (max-width: 768px) {
  .navbar__links { display: none; }
}

.navbar__link {
  color: var(--text-primary);
  font-weight: 500;
  position: relative;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width 0.3s ease;
}

.navbar__link:hover::after,
.navbar__link.active::after {
  width: 100%;
}

.navbar__toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 768px) {
  .navbar__toggle { display: block; }
}

.navbar__mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--bg-secondary);
  padding: 1rem;
  border-bottom: 1px solid var(--glass-border);
  flex-direction: column;
  gap: 1rem;
}

.navbar__mobile-menu.active {
  display: flex;
}

/* Glass Cards */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255,255,255,0.15);
}

.card--calculator {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
  height: 100%;
}

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius);
  background: rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-secondary);
  margin-bottom: 0.5rem;
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card__title {
  margin: 0;
  font-size: 1.25rem;
}

.card__description {
  font-size: 0.9rem;
  margin: 0;
  flex-grow: 1;
}

.card__cta {
  color: var(--accent-primary);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
}

.card--calculator:hover .card__cta {
  color: var(--accent-secondary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-family: var(--font-body);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn--primary:hover {
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
  transform: translateY(-2px);
  color: white;
}

.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.2);
}

.btn--secondary:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.3);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
  border-radius: var(--border-radius);
  width: 100%;
}

/* Form Inputs */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.form-input,
.form-select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--border-radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Custom Select Arrow */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23a1a1aa'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1rem;
  padding-right: 2.5rem;
}

/* Input Group (with prefix/suffix) */
.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-group__prefix {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
}

.input-group__suffix {
  position: absolute;
  right: 1rem;
  color: var(--text-muted);
}

.input-group--has-prefix .form-input { padding-left: 2rem; }
.input-group--has-suffix .form-input { padding-right: 2.5rem; }

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge--finance { background: rgba(59, 130, 246, 0.15); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.3); }
.badge--utility { background: rgba(168, 85, 247, 0.15); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.badge--health { background: rgba(34, 197, 94, 0.15); color: #4ade80; border: 1px solid rgba(34, 197, 94, 0.3); }
.badge--tax { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }

/* Footer */
.footer {
  background: var(--bg-secondary);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
  border-top: 1px solid var(--glass-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer__title {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.footer__links {
  list-style: none;
  padding: 0;
}

.footer__links li {
  margin-bottom: 0.75rem;
}

.footer__links a {
  color: var(--text-secondary);
}

.footer__links a:hover {
  color: var(--accent-primary);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer__disclaimer {
  margin-top: 1rem;
  font-size: 0.75rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 480px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

/* Ad Slots */
.ad-slot {
  background: var(--bg-secondary);
  border: 1px dashed rgba(255,255,255,0.1);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 2rem auto;
  position: relative;
  overflow: hidden;
}

.ad-slot::before {
  content: 'Advertisement';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ad-slot--leaderboard { width: 100%; max-width: 728px; height: 90px; }
.ad-slot--sidebar {
  width: 300px;
  height: 600px;
  margin: 0 !important;
  order: 2;
  position: sticky;
  top: 100px;
  align-self: start;
}
.ad-slot--rectangle { width: 300px; height: 250px; }
.ad-slot--mobile-banner { width: 320px; height: 100px; display: none; }

@media (max-width: 768px) {
  .ad-slot--leaderboard { display: none; }
  .ad-slot--mobile-banner { display: flex; }
}

/* FAQ Accordion */
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: 1.5rem 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--accent-primary);
  transition: transform 0.3s ease;
}

.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  color: var(--text-secondary);
  margin-top: 0;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  margin-top: 1rem;
}

/* Categories Grid Layout */
.category-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-top: 40px;
}

.category-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 30px;
  text-align: center;
  text-decoration: none;
  color: var(--text-primary);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at center, rgba(255,255,255,0.05) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.category-card:hover {
  transform: translateY(-5px) scale(1.02);
  border-color: var(--accent-primary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 0 15px rgba(99, 102, 241, 0.15);
}

.category-card:hover::before {
  opacity: 1;
}

.category-icon {
  width: 70px;
  height: 70px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 20px;
}

.category-card h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
  font-weight: 700;
}

.category-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 15px;
}

.tool-count {
  font-size: 0.85rem;
  color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.1);
  padding: 4px 12px;
  border-radius: 12px;
  font-weight: 600;
}

/* Staggered Grid Animation for Tools */
.stagger-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.stagger-item {
  opacity: 0;
  animation: fadeUpStagger 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeUpStagger {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* Subtle Glowing Background for Hero */
.mesh-gradient-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: -1;
  background: radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.08), transparent 50%),
              radial-gradient(circle at 85% 30%, rgba(236, 72, 153, 0.05), transparent 50%);
  animation: slowPulse 10s ease-in-out infinite alternate;
}

@keyframes slowPulse {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.1); opacity: 1; }
}

/* Tooltip / Input Pulse Animation for Onboarding */
.input-pulse {
  animation: borderPulse 2s infinite;
}

@keyframes borderPulse {
  0% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
  70% { box-shadow: 0 0 0 6px rgba(99, 102, 241, 0); }
  100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); }
}

/* Onboarding Modal */
.onboarding-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 12, 22, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
}
.onboarding-modal.active {
  opacity: 1;
  pointer-events: auto;
}
.onboarding-card {
  background: rgba(20, 24, 45, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-lg, 16px);
  padding: 2.5rem;
  max-width: 500px;
  width: 90%;
  text-align: center;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(99, 102, 241, 0.15);
  transform: translateY(30px);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}
.onboarding-modal.active .onboarding-card {
  transform: translateY(0);
}
.star-field {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: radial-gradient(white, rgba(255,255,255,.2) 2px, transparent 40px),
              radial-gradient(white, rgba(255,255,255,.15) 1px, transparent 30px);
  background-size: 240px 240px, 180px 180px;
  background-position: 0 0, 40px 60px;
  animation: starTwinkle 15s linear infinite;
  opacity: 0.3;
}
@keyframes starTwinkle {
  from { background-position: 0 0, 40px 60px; }
  to { background-position: 240px 240px, 220px 300px; }
}
.spaceship-container {
  position: relative;
  height: 100px;
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
}
.spaceship {
  font-size: 3.5rem;
  animation: spaceshipFly 4s ease-in-out infinite alternate;
}
@keyframes spaceshipFly {
  0% { transform: translateY(0) rotate(5deg) scale(0.9); }
  50% { transform: translateY(-15px) rotate(-5deg) scale(1.05); filter: drop-shadow(0 0 15px rgba(99, 102, 241, 0.8)); }
  100% { transform: translateY(5px) rotate(3deg) scale(0.95); }
}
.onboarding-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}
.onboarding-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}
.onboarding-features {
  text-align: left;
  margin-bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.02);
  padding: 1.25rem;
  border-radius: var(--border-radius-sm, 8px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.onboarding-feature {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.feature-icon {
  font-size: 1.1rem;
}
.onboarding-btn {
  width: 100%;
}

/* Search Overlay */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 12, 22, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 9998;
  display: none;
  justify-content: center;
  align-items: flex-start;
  opacity: 0;
  transition: opacity 0.3s ease;
  padding-top: 10vh;
}
.search-overlay.active {
  display: flex;
  opacity: 1;
}
.search-container {
  background: rgba(20, 24, 45, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg, 16px);
  width: 90%;
  max-width: 600px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(99, 102, 241, 0.1);
  overflow: hidden;
  transform: translateY(-20px);
  transition: transform 0.3s ease;
}
.search-overlay.active .search-container {
  transform: translateY(0);
}
.search-header {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.25rem 1.5rem;
  gap: 1rem;
}
#searchInput {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.2rem;
  font-family: var(--font-body);
  outline: none;
}
#searchInput::placeholder {
  color: var(--text-muted);
}
.search-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
  padding: 0;
  transition: var(--transition);
}
.search-close:hover {
  color: var(--text-primary);
}
.search-results {
  max-height: 350px;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.search-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius-sm, 8px);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  transition: var(--transition);
}
.search-item:hover {
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.2);
}
.search-item__info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.search-item__title {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
}
.search-item__desc {
  color: var(--text-secondary);
  font-size: 0.8rem;
  max-width: 400px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-item__cat {
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  text-transform: capitalize;
}
.search-no-results {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem 0;
  font-size: 0.95rem;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  margin-left: 0.5rem;
}
.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-primary);
}
body.light-theme .theme-toggle-btn:hover {
  background: rgba(0, 0, 0, 0.05);
}

/* Adjustments for light theme elements */
body.light-theme .navbar--scrolled {
  border-bottom-color: rgba(0, 0, 0, 0.06);
}
body.light-theme .calculator-card,
body.light-theme .related-calculators,
body.light-theme .content-section,
body.light-theme .search-container,
body.light-theme .onboarding-card {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}