/* ==========================================================================
   components.css — Reusable UI components (nav, buttons, cards, forms, etc.)
   ========================================================================== */

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.nav.is-scrolled {
  background: rgba(9, 12, 11, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

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

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.nav__logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: var(--text-sm);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--color-text);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav__toggle-bar {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav__toggle.is-open .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle.is-open .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav__toggle.is-open .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav menu */
.nav__mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  z-index: 999;
}

.nav__mobile-menu.is-open {
  display: block;
}

.nav__mobile-menu .nav__link {
  display: block;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.nav__mobile-menu .nav__actions {
  margin-top: var(--space-lg);
  flex-direction: column;
}

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

  .nav__toggle {
    display: flex;
  }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  border: 2px solid transparent;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-on-accent);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-on-accent);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.btn--accent {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.btn--accent:hover {
  background: var(--color-accent-dark);
  color: var(--color-on-accent);
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
}

.btn--ghost:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: var(--text-base);
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
}

.btn--full {
  width: 100%;
}

/* --- Cards --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary-light);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
}

.card__title {
  margin-bottom: var(--space-sm);
}

.card__desc {
  font-size: var(--text-sm);
}

/* --- Feature Card --- */
.feature-card {
  text-align: center;
  padding: var(--space-xl);
}

.feature-card__icon {
  width: 64px;
  height: 64px;
  background: var(--color-primary-light);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin: 0 auto var(--space-lg);
}

/* --- Injected SVG Icons --- */
.icon-wrap svg,
.feature-card__icon svg,
.feature-detail__icon svg,
.contact-info__icon svg,
.hero__float-card__icon svg {
  width: 55%;
  height: 55%;
}

.feature-detail__icon {
  color: var(--color-primary);
}

.contact-info__icon {
  color: var(--color-primary);
}

/* --- Testimonial Card --- */
.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
}

.testimonial-card__quote {
  font-size: var(--text-base);
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-primary-light);
  border: 2px solid var(--color-border);
}

.testimonial-card__name {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.testimonial-card__role {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* --- Pricing Card --- */
.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
  position: relative;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-card__name {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.pricing-card__desc {
  font-size: var(--text-sm);
  margin-bottom: var(--space-lg);
}

.pricing-card__price {
  margin-bottom: var(--space-xl);
}

.pricing-card__amount {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-text);
}

.pricing-card__period {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.pricing-card__features {
  margin-bottom: var(--space-xl);
}

.pricing-card__features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border-light);
}

.pricing-card__features li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 700;
}

.pricing-card__features li.is-disabled {
  opacity: 0.4;
}

.pricing-card__features li.is-disabled::before {
  content: '—';
  color: var(--color-text-light);
}

/* --- Pricing Toggle --- */
.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.pricing-toggle__label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.pricing-toggle__label.is-active {
  color: var(--color-text);
  font-weight: 600;
}

.pricing-toggle__switch {
  position: relative;
  width: 52px;
  height: 28px;
  background: var(--color-border);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  border: none;
  padding: 0;
}

.pricing-toggle__knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  background: white;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

.pricing-toggle__save {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius-full);
}

/* --- FAQ Accordion --- */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
}

.faq-item__icon {
  font-size: var(--text-xl);
  color: var(--color-primary);
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.faq-item.is-open .faq-item__icon {
  transform: rotate(45deg);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item.is-open .faq-item__answer {
  max-height: 300px;
  padding-bottom: var(--space-lg);
}

.faq-item__answer p {
  font-size: var(--text-sm);
  line-height: 1.7;
}

/* --- Tabs (Features page) --- */
.tabs {
  margin-bottom: var(--space-3xl);
}

.tabs__nav {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.tabs__btn {
  padding: var(--space-sm) var(--space-lg);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-full);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tabs__btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.tabs__btn.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.tabs__panel {
  display: none;
}

.tabs__panel.is-active {
  display: block;
}

/* --- Forms --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(62, 207, 142, 0.18);
}

.form-input.is-error,
.form-textarea.is-error {
  border-color: var(--color-error);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
  display: none;
}

.form-error.is-visible {
  display: block;
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

/* --- Alert / Toast --- */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--border-radius-sm);
  font-size: var(--text-sm);
  margin-bottom: var(--space-lg);
  display: none;
}

.alert.is-visible {
  display: block;
}

.alert--success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.alert--error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* --- Page Header (inner pages) --- */
.page-header {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  text-align: center;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(62, 207, 142, 0.14) 0%, transparent 70%),
    var(--color-bg);
}

.page-header__title {
  margin-bottom: var(--space-md);
}

.page-header__desc {
  font-size: var(--text-lg);
  max-width: 560px;
  margin: 0 auto;
}

/* --- Comparison Table --- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-3xl);
  font-size: var(--text-sm);
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-md) var(--space-lg);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table th:first-child,
.comparison-table td:first-child {
  text-align: left;
  font-weight: 500;
}

.comparison-table thead th {
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-bg);
}

.comparison-table .check {
  color: var(--color-primary);
  font-weight: 700;
}

.comparison-table .dash {
  color: var(--color-text-light);
}

@media (max-width: 768px) {
  .comparison-table {
    display: block;
    overflow-x: auto;
  }

  .pricing-card--featured {
    transform: none;
  }
}