/* ============================================
   BuildSheet — Reusable Components
   ============================================ */

/* ── Launch Promo Banner ────────────────────── */
.promo-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1100;
  background: linear-gradient(135deg, #059669, #06B6D4);
  color: white;
  text-align: center;
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
  font-family: var(--font-body);
}

.promo-banner__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  max-width: var(--container-xl);
  margin-inline: auto;
}

.promo-banner__sparkle {
  font-size: 1rem;
}

.promo-banner__text {
  font-weight: var(--weight-medium);
}

.promo-banner__code {
  background: rgba(255, 255, 255, 0.2);
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
}

.promo-banner__cta {
  color: white;
  font-weight: var(--weight-bold);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: opacity 0.2s;
}

.promo-banner__cta:hover {
  opacity: 0.85;
}

/* Push navbar below promo banner */

/* ── Navbar ─────────────────────────────────── */
.navbar {
  position: fixed;
  top: 36px;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  padding: var(--space-4) 0;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-all);
}

.navbar.scrolled {
  padding: var(--space-3) 0;
  background: var(--bg-glass-strong);
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  font-size: var(--text-xl);
  color: var(--text-primary);
  text-decoration: none;
}

.navbar__logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-lg);
  font-weight: var(--weight-extrabold);
  box-shadow: var(--shadow-glow);
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.navbar__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-colors);
  position: relative;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width var(--duration-normal) var(--ease-out);
  border-radius: var(--radius-full);
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--text-primary);
}

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

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Theme toggle */
.theme-toggle {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-all);
  display: flex;
  align-items: center;
  padding: 2px;
}

.theme-toggle:hover {
  border-color: var(--color-accent-teal);
}

.theme-toggle__thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--gradient-accent);
  transition: transform var(--duration-normal) var(--ease-bounce);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
}

[data-theme="light"] .theme-toggle__thumb {
  transform: translateX(20px);
}

/* Mobile hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
  z-index: calc(var(--z-navbar) + 1);
}

.navbar__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: var(--transition-all);
}

.navbar__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.navbar__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav overlay */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: var(--z-navbar);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-default);
}

.navbar__mobile-menu.open {
  display: flex;
  opacity: 1;
}

.navbar__mobile-menu .navbar__link {
  font-size: var(--text-2xl);
}

/* ── Buttons ────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-none);
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-all);
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-accent);
  color: white;
  box-shadow: var(--shadow-md), 0 0 20px var(--color-accent-glow);
}

.btn--primary:hover {
  background: var(--gradient-accent-hover);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-2px);
  color: white;
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

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

.btn--secondary:hover {
  border-color: var(--color-accent-teal);
  color: var(--color-accent-teal);
  background: rgba(6, 182, 212, 0.05);
  transform: translateY(-2px);
}

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

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-4);
}

.btn--ghost:hover {
  color: var(--color-accent-teal);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-xl);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

/* ── Cards ──────────────────────────────────── */
.card {
  position: relative;
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: var(--transition-all);
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient-border);
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-default);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

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

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  color: var(--color-accent-teal);
  transition: var(--transition-all);
}

.card:hover .card__icon {
  background: rgba(6, 182, 212, 0.15);
  box-shadow: 0 0 20px var(--color-accent-glow);
  transform: scale(1.05);
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.card__description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ── Badges ─────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-full);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.badge--accent {
  background: rgba(6, 182, 212, 0.15);
  color: var(--color-accent-teal);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.badge--popular {
  background: var(--gradient-accent);
  color: white;
  box-shadow: var(--shadow-glow);
}

.badge--save {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* ── Billing Toggle ─────────────────────────── */
.billing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.billing-toggle__label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-tertiary);
  transition: var(--transition-colors);
  cursor: pointer;
}

.billing-toggle__label.active {
  color: var(--text-primary);
}

.billing-toggle__switch {
  position: relative;
  width: 52px;
  height: 28px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-all);
  flex-shrink: 0;
}

.billing-toggle__switch:hover {
  border-color: var(--color-accent-teal);
}

.billing-toggle__switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gradient-accent);
  transition: transform var(--duration-normal) var(--ease-bounce);
}

.billing-toggle__switch.annual::after {
  transform: translateX(24px);
}

/* ── Accordion ──────────────────────────────── */
.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.accordion__item {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-all);
}

.accordion__item:hover {
  border-color: var(--border-default);
}

.accordion__item.open {
  border-color: rgba(6, 182, 212, 0.2);
}

.accordion__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  transition: var(--transition-colors);
}

.accordion__header:hover {
  color: var(--color-accent-teal);
}

.accordion__chevron {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform var(--duration-normal) var(--ease-default);
  flex-shrink: 0;
}

.accordion__item.open .accordion__chevron {
  transform: rotate(180deg);
  color: var(--color-accent-teal);
}

.accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-default);
}

.accordion__item.open .accordion__body {
  max-height: 500px;
}

.accordion__content {
  padding: 0 var(--space-6) var(--space-6);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* ── Testimonial Carousel ───────────────────── */
.carousel {
  position: relative;
  overflow: hidden;
}

.carousel__track {
  display: flex;
  transition: transform var(--duration-slow) var(--ease-default);
  will-change: transform;
}

.carousel__slide {
  flex: 0 0 100%;
  min-width: 0;
  padding: 0 var(--space-4);
}

.carousel__card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.carousel__quote {
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
  flex: 1;
  position: relative;
  padding-left: var(--space-6);
}

.carousel__quote::before {
  content: '"';
  position: absolute;
  left: 0;
  top: -8px;
  font-size: var(--text-5xl);
  font-family: var(--font-heading);
  color: var(--color-accent-teal);
  opacity: 0.4;
  line-height: 1;
}

.carousel__author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.carousel__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--weight-bold);
  color: white;
  font-size: var(--text-lg);
  flex-shrink: 0;
}

.carousel__author-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.carousel__name {
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  font-size: var(--text-sm);
}

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

.carousel__dots {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  cursor: pointer;
  transition: var(--transition-all);
  padding: 0;
}

.carousel__dot.active {
  background: var(--color-accent-teal);
  border-color: var(--color-accent-teal);
  width: 24px;
  border-radius: var(--radius-full);
}

/* ── Step Counter ───────────────────────────── */
.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--color-accent-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  font-size: var(--text-lg);
  color: var(--color-accent-teal);
  background: rgba(6, 182, 212, 0.08);
  flex-shrink: 0;
}

/* ── Modal Overlay ──────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal-overlay__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal-overlay__panel {
  position: relative;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl, 1rem);
  padding: var(--space-8, 2rem);
  box-shadow: var(--shadow-xl, 0 20px 60px rgba(0,0,0,0.3));
}

.modal-overlay__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm, 0.25rem);
}

.modal-overlay__close:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary, rgba(255,255,255,0.05));
}