/* ==========================================================================
   Component Styles
   VocSeed - Light Theme Components
   ========================================================================== */

/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  background: var(--navbar-bg);
  backdrop-filter: blur(0);
  z-index: var(--z-sticky);
  transition: height var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out),
              backdrop-filter var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.navbar.scrolled {
  height: var(--navbar-height-scrolled);
  background: var(--navbar-bg-scrolled);
  backdrop-filter: var(--glass-blur);
  box-shadow: 0 1px 0 var(--border-color);
}

.navbar.navbar--hidden {
  transform: translateY(-100%);
}

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

.navbar__logo {
  width: auto;
  height: 40px;
  object-fit: contain;
}

.navbar__menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.navbar__item {
  position: relative;
}

.navbar__link {
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--duration-fast) var(--ease-out);
}

.navbar__link:hover {
  color: var(--color-accent);
  background: rgba(33, 150, 243, 0.08);
}

.navbar__link.active {
  color: var(--color-accent);
}

.navbar__link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

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

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
  cursor: pointer;
  touch-action: manipulation;
}

.navbar__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-out);
}

/* Mobile Menu Overlay */
.navbar__overlay {
  display: none;
}

@media (max-width: 1023px) {
  .navbar__overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-out);
    z-index: calc(var(--z-modal) - 1);
  }

  .navbar.mobile-open .navbar__overlay {
    opacity: 1;
    visibility: visible;
  }
}

/* ==========================================================================
   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(--font-semibold);
  line-height: 1;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  touch-action: manipulation;
  transition: transform var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.btn--primary {
  background: var(--gradient-accent);
  color: var(--color-white);
  box-shadow: 0 4px 15px var(--color-accent-glow);
}

.btn--primary:hover {
  background: var(--gradient-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--color-accent-glow);
}

.btn--secondary {
  background: var(--color-white);
  color: var(--color-text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn--secondary:hover {
  background: var(--color-primary-light);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn--outline:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

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

.btn--ghost:hover {
  color: var(--color-accent);
  background: rgba(33, 150, 243, 0.08);
}

.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);
}

.btn--icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-lg);
}

.btn svg {
  width: 20px;
  height: 20px;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-card-hover);
}

.card__image {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.card:hover .card__image img {
  transform: scale(1.05);
}

.card__content {
  padding: var(--space-6);
}

.card__tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-accent);
  background: rgba(33, 150, 243, 0.1);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.card__description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-color);
}

/* Product Card Variant */
.card--product {
  text-align: center;
}

.card--product .card__icon {
  width: 64px;
  height: 64px;
  margin: var(--space-6) auto var(--space-4);
  padding: var(--space-4);
  background: rgba(33, 150, 243, 0.1);
  border-radius: var(--radius-xl);
  color: var(--color-accent);
  transition: all var(--duration-normal) var(--ease-out);
}

.card--product:hover .card__icon {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-glow-accent);
}

/* Feature Card Variant */
.card--feature {
  padding: var(--space-8);
}

.card--feature .card__number {
  font-family: var(--font-display);
  font-size: var(--text-6xl);
  font-weight: var(--font-bold);
  color: var(--color-accent);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: var(--space-4);
}

/* Glow border effect */
.card--glow::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

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

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-32) var(--space-8);
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero__background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__background::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.9) 0%,
    rgba(255, 255, 255, 0.7) 50%,
    var(--color-primary) 100%
  );
}

.hero__content {
  position: relative;
  max-width: var(--container-lg);
  text-align: center;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-accent);
  background: rgba(33, 150, 243, 0.1);
  border: 1px solid rgba(33, 150, 243, 0.2);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-6xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tighter);
  margin-bottom: var(--space-6);
  color: var(--color-accent);
}

.hero__title span {
  display: inline;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  max-width: 640px;
  margin: 0 auto var(--space-8);
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  animation: float 2s ease-in-out infinite;
}

.hero__scroll-icon {
  width: 24px;
  height: 40px;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-full);
  position: relative;
}

.hero__scroll-icon::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  animation: scrollIndicator 2s ease-in-out infinite;
}

/* ==========================================================================
   Section Components
   ========================================================================== */

.section {
  position: relative;
  padding: var(--section-padding-y) 0;
}

.section__header {
  max-width: var(--container-md);
  margin: 0 auto var(--space-16);
  text-align: center;
}

.section__label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  margin-bottom: var(--space-4);
}

.section__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.section__description {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   Stats / Counter
   ========================================================================== */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
}

.stat {
  text-align: center;
  padding: var(--space-8);
}

.stat__value {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat__value span {
  color: var(--color-accent);
}

.stat__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* ==========================================================================
   Timeline
   ========================================================================== */

.timeline {
  position: relative;
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: var(--space-8) 0;
}

.timeline__line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    180deg,
    transparent 0%,
    var(--color-accent) 10%,
    var(--color-accent) 90%,
    transparent 100%
  );
  transform-origin: top;
}

.timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  margin-bottom: var(--space-16);
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--duration-slow) var(--ease-out);
}

.timeline__item.revealed {
  opacity: 1;
  transform: translateY(0);
}

.timeline__item:nth-child(odd) .timeline__content {
  text-align: right;
  grid-column: 1;
}

.timeline__item:nth-child(odd) .timeline__media {
  grid-column: 2;
}

.timeline__item:nth-child(even) .timeline__content {
  grid-column: 2;
  grid-row: 1;
}

.timeline__item:nth-child(even) .timeline__media {
  grid-column: 1;
  grid-row: 1;
}

.timeline__dot {
  position: absolute;
  left: 50%;
  top: 0;
  width: 16px;
  height: 16px;
  background: var(--color-white);
  border: 3px solid var(--color-accent);
  border-radius: var(--radius-full);
  transform: translateX(-50%) scale(0);
  transition: transform var(--duration-normal) var(--ease-elastic);
  z-index: 1;
}

.timeline__dot.animate {
  transform: translateX(-50%) scale(1);
}

.timeline__dot::before {
  content: '';
  position: absolute;
  inset: -8px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-full);
  opacity: 0;
  animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.timeline__year {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.timeline__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

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

.timeline__media {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.timeline__media img {
  width: 100%;
  height: auto;
}

/* ==========================================================================
   Carousel
   ========================================================================== */

.carousel {
  position: relative;
  overflow: hidden;
}

.carousel__track {
  display: flex;
}

.carousel__slide {
  flex-shrink: 0;
  width: 100%;
}

.carousel__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  z-index: 10;
  box-shadow: var(--shadow-md);
}

.carousel__nav:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.carousel__nav--prev {
  left: var(--space-4);
}

.carousel__nav--next {
  right: var(--space-4);
}

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

.carousel__pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.carousel__dot {
  width: 8px;
  height: 8px;
  background: var(--color-gray-300);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.carousel__dot.active,
.carousel__dot:hover {
  background: var(--color-accent);
  transform: scale(1.2);
}

/* Logo Carousel (Client logos) */
.logo-carousel {
  overflow: hidden;
  mask-image: linear-gradient(
    90deg,
    transparent 0%,
    black 10%,
    black 90%,
    transparent 100%
  );
}

.logo-carousel__track {
  display: flex;
  gap: var(--space-16);
  animation: marquee 30s linear infinite;
}

.logo-carousel__item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  opacity: 0.5;
  filter: grayscale(100%);
  transition: all var(--duration-fast) var(--ease-out);
}

.logo-carousel__item:hover {
  opacity: 1;
  filter: grayscale(0%);
}

.logo-carousel__item img {
  max-height: 100%;
  max-width: 150px;
}

/* ==========================================================================
   Form Components
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--duration-fast) var(--ease-out);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%231e293b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  background-size: 16px;
  padding-right: var(--space-12);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  position: relative;
  padding: var(--space-20) 0 var(--space-8);
  background: var(--color-primary-dark);
  border-top: 1px solid var(--border-color);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.footer__brand {
  max-width: 320px;
}

.footer__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
}

.footer__logo-img {
  width: auto;
  height: auto;
  max-width: 160px;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.footer__qrcode {
  margin-top: var(--space-4);
  display: flex;
  justify-content: center;
}

.footer__qrcode-img {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-md);
  object-fit: contain;
}

.footer__description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.footer__social {
  margin-top: var(--space-4);
}

.footer__social-title {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
}

.footer__social-icons {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
}

.footer__social-link:hover {
  background: var(--color-accent);
  color: white;
  transform: translateY(-2px);
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
}

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

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
  letter-spacing: 0.02em;
}

.footer__column-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-6);
}

.footer__links {
  list-style: none;
}

.footer__link {
  display: block;
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}

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

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-color);
}

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

.footer__legal {
  display: flex;
  gap: var(--space-6);
}

.footer__legal-link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__legal-link:hover {
  color: var(--color-accent);
}

/* ==========================================================================
   Tabs
   ========================================================================== */

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--color-primary-dark);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-8);
}

.tab {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

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

.tab.active {
  color: var(--color-white);
  background: var(--color-accent);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn var(--duration-normal) var(--ease-out);
}

/* ==========================================================================
   Accordion
   ========================================================================== */

.accordion {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-white);
}

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

.accordion__item:last-child {
  border-bottom: none;
}

.accordion__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background var(--duration-fast) var(--ease-out);
}

.accordion__header:hover {
  background: var(--color-primary-light);
}

.accordion__icon {
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  transition: transform var(--duration-fast) var(--ease-out);
}

.accordion__item.active .accordion__icon {
  transform: rotate(180deg);
}

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out);
}

.accordion__item.active .accordion__content {
  max-height: 500px;
}

.accordion__body {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.modal.active {
  opacity: 1;
  visibility: visible;
  overscroll-behavior: contain;
}

.modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal__container {
  position: relative;
  max-width: var(--container-md);
  width: 100%;
  max-height: 90vh;
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transform: scale(0.95) translateY(20px);
  transition: transform var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-2xl);
}

.modal.active .modal__container {
  transform: scale(1) translateY(0);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-color);
}

.modal__title {
  font-size: var(--text-xl);
  color: var(--color-text-primary);
}

.modal__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-lg);
  transition: all var(--duration-fast) var(--ease-out);
}

.modal__close:hover {
  background: var(--color-primary-light);
  color: var(--color-text-primary);
}

.modal__body {
  padding: var(--space-6);
  overflow-y: auto;
  max-height: calc(90vh - 140px);
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-6);
  border-top: 1px solid var(--border-color);
}

/* ==========================================================================
   Tags / Pills
   ========================================================================== */

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background: var(--color-primary-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
}

.tag--accent {
  color: var(--color-accent);
  background: rgba(33, 150, 243, 0.1);
  border-color: rgba(33, 150, 243, 0.2);
}

.tag--gold {
  color: var(--color-accent-secondary);
  background: rgba(255, 193, 7, 0.1);
  border-color: rgba(255, 193, 7, 0.2);
}

.tag--blue {
  color: var(--color-accent-tertiary);
  background: rgba(21, 101, 192, 0.1);
  border-color: rgba(21, 101, 192, 0.2);
}

/* ==========================================================================
   Loading States
   ========================================================================== */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-primary-light) 25%,
    var(--color-primary-dark) 50%,
    var(--color-primary-light) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-primary-dark);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* ==========================================================================
   Page Loader
   ========================================================================== */

.page-loader {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  z-index: var(--z-max);
  opacity: 1;
  visibility: visible;
  transition: opacity var(--duration-slow) var(--ease-out),
              visibility var(--duration-slow) var(--ease-out);
}

.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.page-loader__logo {
  width: 64px;
  height: 64px;
  animation: pulse 1.5s ease-in-out infinite;
}

.page-loader__spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--color-primary-dark);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.page-loader__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
}

/* ==========================================================================
   Form Validation States
   ========================================================================== */

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

.form-group--error .form-input:focus,
.form-group--error .form-textarea:focus,
.form-group--error .form-select:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-group--success .form-input,
.form-group--success .form-textarea,
.form-group--success .form-select {
  border-color: var(--color-success);
}

.form-group--success .form-input:focus,
.form-group--success .form-textarea:focus,
.form-group--success .form-select:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.form-error {
  display: none;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-error);
}

.form-group--error .form-error {
  display: block;
}

.form-helper {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Required field indicator */
.form-label--required::after {
  content: ' *';
  color: var(--color-error);
}

/* Form success message */
.form-success {
  text-align: center;
  padding: var(--space-12);
}

.form-success__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-6);
  color: var(--color-success);
}

.form-success h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.form-success p {
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Feature Grid
   ========================================================================== */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.feature-item {
  text-align: center;
  padding: var(--space-8);
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border-color);
  transition: all var(--duration-normal) var(--ease-out);
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-color-accent);
}

.feature-item__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  padding: var(--space-3);
  background: rgba(33, 150, 243, 0.1);
  border-radius: var(--radius-xl);
  color: var(--color-accent);
  transition: all var(--duration-normal) var(--ease-out);
}

.feature-item:hover .feature-item__icon {
  background: var(--color-accent);
  color: var(--color-white);
}

.feature-item__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
}

.feature-item__description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

@media (max-width: 1023px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 639px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}