/* ============================================
   KWT Labs — Support Center
   ============================================ */

.sup-hero h1 .text-gradient {
  background: linear-gradient(90deg, #0F6FFF 0%, #06b6d4 55%, #16C784 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sup-hero {
  padding-top: calc(var(--header-h) + 48px);
  padding-bottom: 56px;
  background:
    radial-gradient(ellipse 70% 60% at 85% 10%, rgba(15, 111, 255, 0.14) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 5% 90%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
    linear-gradient(180deg, #eef4ff 0%, var(--white) 100%);
}

.sup-hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.sup-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 12px;
}

.sup-hero__lead {
  font-size: 1.0625rem;
  color: var(--gray-500);
  line-height: 1.75;
  margin-bottom: 28px;
  max-width: 520px;
}

.sup-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

/* Search */
.sup-search {
  position: relative;
  max-width: 560px;
  margin-bottom: 8px;
}

.sup-search__wrap {
  position: relative;
}

.sup-search__icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

.sup-search__icon .icon {
  width: 20px;
  height: 20px;
  color: var(--gray-400);
}

.sup-search__input {
  width: 100%;
  padding: 16px 20px 16px 50px;
  font-size: 1rem;
  font-family: var(--font);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  background: var(--white);
  color: var(--dark);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.sup-search__input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(15, 111, 255, 0.12);
}

.sup-search__hint {
  font-size: 0.8125rem;
  color: var(--gray-400);
  margin-top: 8px;
}

.sup-search__results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  overflow: hidden;
}

.sup-search__results[hidden] { display: none; }

.sup-search__hit {
  display: block;
  padding: 14px 20px;
  border-bottom: 1px solid var(--gray-100);
  transition: background var(--transition);
}

.sup-search__hit:last-child { border-bottom: none; }

.sup-search__hit:hover {
  background: var(--primary-light);
}

.sup-search__hit strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--dark);
  margin-bottom: 2px;
}

.sup-search__hit span {
  font-size: 0.75rem;
  color: var(--gray-500);
}

.sup-search__empty {
  padding: 20px;
  font-size: 0.875rem;
  color: var(--gray-500);
  text-align: center;
}

/* Hero illustration */
.sup-hero-illus {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sup-hero-illus__center {
  width: 160px;
  height: 160px;
  background: linear-gradient(135deg, var(--primary), #06b6d4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
  position: relative;
  z-index: 2;
}

.sup-hero-illus__center .icon {
  width: 64px;
  height: 64px;
  color: var(--white);
}

.sup-hero-illus__orb {
  position: absolute;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  box-shadow: var(--shadow-md);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: supFloat 5s ease-in-out infinite;
}

.sup-hero-illus__orb .icon {
  width: 18px;
  height: 18px;
  color: var(--primary);
}

.sup-hero-illus__orb--1 { top: 20px; left: 0; animation-delay: 0s; }
.sup-hero-illus__orb--2 { top: 40px; right: 0; animation-delay: -1.5s; }
.sup-hero-illus__orb--3 { bottom: 40px; left: 10%; animation-delay: -3s; }

@keyframes supFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Quick help */
.sup-quick {
  padding: 40px 0;
  border-bottom: 1px solid var(--gray-200);
  background: var(--white);
}

.sup-quick__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.sup-quick-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  color: inherit;
}

.sup-quick-card:hover {
  border-color: rgba(15, 111, 255, 0.35);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: inherit;
}

.sup-quick-card__icon {
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sup-quick-card__icon .icon {
  width: 22px;
  height: 22px;
  color: var(--primary);
}

.sup-quick-card h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.sup-quick-card p {
  font-size: 0.8125rem;
  color: var(--gray-500);
  line-height: 1.55;
}

/* Layout */
.sup-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  align-items: start;
  padding: 48px 0 80px;
}

.sup-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 20px);
}

.sup-sidebar__label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-400);
  margin-bottom: 12px;
}

.sup-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sup-nav a {
  display: block;
  padding: 8px 12px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: all var(--transition);
}

.sup-nav a:hover,
.sup-nav a.is-active {
  color: var(--primary);
  background: var(--primary-light);
  border-left-color: var(--primary);
}

.sup-nav a.is-active { font-weight: 600; }

.sup-nav-mobile {
  display: none;
  overflow-x: auto;
  gap: 8px;
  padding-bottom: 16px;
  margin-bottom: 24px;
  scrollbar-width: none;
}

.sup-nav-mobile::-webkit-scrollbar { display: none; }

.sup-nav-mobile a {
  flex-shrink: 0;
  padding: 8px 14px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-600);
  background: var(--gray-100);
  border-radius: 999px;
  white-space: nowrap;
}

.sup-nav-mobile a.is-active {
  background: var(--primary);
  color: var(--white);
}

.sup-section {
  scroll-margin-top: calc(var(--header-h) + 20px);
  margin-bottom: 64px;
}

.sup-section h2 {
  font-size: clamp(1.375rem, 2.5vw, 1.75rem);
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.sup-section__desc {
  font-size: 0.9375rem;
  color: var(--gray-500);
  margin-bottom: 24px;
  max-width: 600px;
  line-height: 1.7;
}

/* Product support */
.sup-products {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.sup-product-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  border-top: 3px solid var(--primary);
}

.sup-product-card--mind {
  border-top-color: #7c3aed;
}

.sup-product-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.sup-product-card__head .icon {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.sup-product-card--mind .sup-product-card__head .icon {
  color: #7c3aed;
}

.sup-product-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--dark);
}

.sup-product-card ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sup-product-card li a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  padding: 6px 0;
}

.sup-product-card li a:hover { color: var(--primary); }

.sup-product-card li a .icon {
  width: 14px;
  height: 14px;
  color: var(--gray-400);
}

/* Article cards */
.sup-articles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.sup-article-card {
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  color: inherit;
}

.sup-article-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
  color: inherit;
}

.sup-article-card__tag {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 8px;
}

.sup-article-card h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark);
  line-height: 1.45;
}

/* License grid */
.sup-license-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.sup-license-card {
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition);
  color: inherit;
}

.sup-license-card:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  color: inherit;
}

.sup-license-card .icon {
  width: 28px;
  height: 28px;
  color: var(--primary);
  margin: 0 auto 10px;
}

.sup-license-card h3 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--dark);
}

/* Download cards */
.sup-dl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.sup-dl-card {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.sup-dl-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  width: 100%;
  margin-bottom: 4px;
}

.sup-dl-card__meta {
  font-size: 0.8125rem;
  color: var(--gray-500);
}

.sup-dl-card__meta strong {
  color: var(--dark);
}

.sup-dl-card__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Form */
.sup-form {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 32px;
}

.sup-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.sup-form__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sup-form__field--full {
  grid-column: 1 / -1;
}

.sup-form label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--dark);
}

.sup-form input,
.sup-form select,
.sup-form textarea {
  padding: 12px 14px;
  font-size: 0.9375rem;
  font-family: var(--font);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--dark);
  transition: border-color var(--transition);
}

.sup-form input:focus,
.sup-form select:focus,
.sup-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 111, 255, 0.1);
}

.sup-form textarea {
  min-height: 120px;
  resize: vertical;
}

/* Feature request row */
.sup-feat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.sup-feat-card {
  padding: 24px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--white) 100%);
  border: 1px solid rgba(15, 111, 255, 0.15);
  border-radius: var(--radius-lg);
  text-align: center;
  color: inherit;
  transition: all var(--transition);
}

.sup-feat-card:hover {
  box-shadow: var(--shadow-md);
  color: inherit;
}

.sup-feat-card .icon {
  width: 28px;
  height: 28px;
  color: var(--primary);
  margin: 0 auto 10px;
}

.sup-feat-card h3 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--dark);
}

.sup-feat-card p {
  font-size: 0.75rem;
  color: var(--gray-500);
  margin-top: 4px;
}

/* Video grid */
.sup-video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.sup-video-card {
  padding: 20px 16px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-700);
  transition: all var(--transition);
  color: inherit;
}

.sup-video-card:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.sup-video-card .icon {
  width: 24px;
  height: 24px;
  color: var(--primary);
  margin: 0 auto 10px;
}

/* Status */
.sup-status {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.sup-status__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark);
}

.sup-status__dot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--success);
}

.sup-status__dot::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
}

/* Policies + response */
.sup-policy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.sup-policy-card {
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
  transition: all var(--transition);
}

.sup-policy-card:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.sup-response {
  margin-top: 24px;
  padding: 24px 28px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--white) 100%);
  border: 1px solid rgba(15, 111, 255, 0.2);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.sup-response h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.sup-response p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.65;
}

/* Contact */
.sup-contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.sup-contact-card {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  text-align: center;
}

.sup-contact-card .icon {
  width: 32px;
  height: 32px;
  color: var(--primary);
  margin: 0 auto 12px;
}

.sup-contact-card h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.sup-contact-card a {
  font-size: 0.9375rem;
  font-weight: 600;
}

/* Community future */
.sup-community {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.sup-community__item {
  padding: 20px;
  border: 1px dashed var(--gray-300);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-500);
  background: var(--gray-50);
}

.sup-community__item span {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 6px;
}

/* FAQ accordion */
.sup-faq .faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
  background: var(--white);
}

.sup-faq .faq-item summary {
  padding: 16px 22px;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sup-faq .faq-item summary::-webkit-details-marker { display: none; }

.sup-faq .faq-item summary::after {
  content: '+';
  color: var(--primary);
  font-size: 1.125rem;
}

.sup-faq .faq-item[open] summary::after { content: '−'; }

.sup-faq .faq-item__answer {
  padding: 0 22px 16px;
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* Final CTA */
.sup-final-cta {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-soft) 100%);
  border-radius: var(--radius-xl);
  padding: 48px;
  text-align: center;
  color: var(--white);
  margin-top: 32px;
}

.sup-final-cta h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--white);
  margin-bottom: 12px;
}

.sup-final-cta p {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 24px;
}

/* Responsive */
@media (max-width: 1024px) {
  .sup-quick__grid { grid-template-columns: repeat(2, 1fr); }
  .sup-articles { grid-template-columns: repeat(2, 1fr); }
  .sup-video-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .sup-hero__grid { grid-template-columns: 1fr; }
  .sup-hero-illus { order: -1; min-height: 260px; }
  .sup-layout { grid-template-columns: 1fr; }
  .sup-sidebar { display: none; }
  .sup-nav-mobile { display: flex; }
  .sup-products,
  .sup-dl-grid { grid-template-columns: 1fr; }
  .sup-form__grid { grid-template-columns: 1fr; }
  .sup-response { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .sup-quick__grid,
  .sup-articles,
  .sup-license-grid,
  .sup-feat-row,
  .sup-contact-grid,
  .sup-policy-grid,
  .sup-status,
  .sup-community,
  .sup-video-grid {
    grid-template-columns: 1fr;
  }
  .sup-final-cta { padding: 32px 24px; }
}