:root {
  --ai-bg: #070b18;
  --ai-panel: rgba(255, 255, 255, 0.075);
  --ai-panel-strong: rgba(255, 255, 255, 0.12);
  --ai-line: rgba(255, 255, 255, 0.16);
  --ai-text: #f8fbff;
  --ai-muted: rgba(235, 244, 255, 0.72);
  --ai-purple: #7c3aed;
  --ai-magenta: #9f1239;
  --ai-cyan: #38d5ff;
  --ai-gold: #f4c95d;
}

.ai-tools-page {
  background: var(--ai-bg);
  color: var(--ai-text);
}

.ai-tools-page .site-header {
  background: rgba(7, 11, 24, 0.88);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.ai-tools-page .nav,
.ai-tools-page .nav a,
.ai-tools-page .nav-dropdown-toggle {
  color: rgba(255, 255, 255, 0.88);
}

.ai-tools-page .nav-dropdown-menu {
  background: rgba(12, 16, 34, 0.98);
  border-color: rgba(124, 58, 237, 0.35);
}

.ai-tools-main {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 15% 10%, rgba(124, 58, 237, 0.26), transparent 34%),
    radial-gradient(circle at 84% 16%, rgba(56, 213, 255, 0.18), transparent 32%),
    linear-gradient(180deg, #080d1d 0%, #050812 100%);
}

.ai-tools-main::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

.ai-tools-section,
.ai-tools-hero {
  position: relative;
  z-index: 1;
  padding: 86px 0;
}

.ai-tools-hero {
  min-height: 720px;
  display: grid;
  align-items: center;
}

.ai-tools-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
  gap: 36px;
  align-items: center;
}

.ai-tools-kicker,
.ai-tools-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  border: 1px solid rgba(56, 213, 255, 0.28);
  border-radius: 999px;
  padding: 8px 13px;
  background: rgba(56, 213, 255, 0.09);
  color: #b7f3ff;
  font-size: 13px;
  font-weight: 900;
}

.ai-tools-hero h1 {
  max-width: 850px;
  margin: 22px 0 16px;
  font-size: clamp(42px, 7vw, 86px);
  line-height: 1.15;
  letter-spacing: 0;
}

.ai-tools-gradient-text {
  color: transparent;
  background: linear-gradient(90deg, var(--ai-cyan), #fff, var(--ai-gold), #c084fc);
  -webkit-background-clip: text;
  background-clip: text;
}

.ai-tools-lead {
  max-width: 820px;
  margin: 0 0 26px;
  color: var(--ai-muted);
  font-size: 19px;
  line-height: 2;
}

.ai-tools-actions,
.ai-tools-card-actions,
.ai-tools-auth-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.ai-tools-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  padding: 12px 18px;
  background: var(--ai-panel);
  color: var(--ai-text);
  font-weight: 900;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.ai-tools-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(56, 213, 255, 0.45);
  box-shadow: 0 18px 44px rgba(56, 213, 255, 0.14);
}

.ai-tools-btn-primary {
  border: 0;
  background: linear-gradient(135deg, var(--ai-purple), var(--ai-magenta));
  box-shadow: 0 20px 54px rgba(124, 58, 237, 0.28);
}

.ai-tools-btn-cyan {
  border: 0;
  background: linear-gradient(135deg, #0891b2, var(--ai-cyan));
  color: #05111d;
}

.ai-tools-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.ai-tools-badges span,
.ai-tools-tag {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.84);
  font-size: 13px;
  font-weight: 800;
}

.ai-tools-orbit {
  min-height: 460px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04)),
    radial-gradient(circle at 50% 20%, rgba(56, 213, 255, 0.20), transparent 42%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 30px 90px rgba(0, 0, 0, 0.34);
}

.ai-tools-orbit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.ai-tools-mini-card,
.ai-tools-card,
.ai-tools-plan,
.ai-tools-panel,
.ai-tools-detail-panel {
  border: 1px solid var(--ai-line);
  border-radius: 22px;
  background: var(--ai-panel);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 24px 60px rgba(0, 0, 0, 0.20);
  backdrop-filter: blur(18px);
}

.ai-tools-mini-card {
  min-height: 140px;
  padding: 18px;
}

.ai-tools-mini-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 28px;
}

.ai-tools-subnav {
  padding: 18px 0 0;
  background: linear-gradient(180deg, rgba(7, 11, 24, 0.98), rgba(7, 11, 24, 0.80));
}

.ai-tools-subnav-inner,
.fd-ai-subtabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: stretch;
  justify-content: center;
}

.fd-ai-subtabs {
  position: relative;
  z-index: 5;
  padding: 20px 0;
  background: #070b18;
}

.ai-tools-subtab,
.fd-ai-subtab {
  min-width: min(100%, 300px);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 18px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.07);
  color: #fff;
  font-weight: 900;
}

.ai-tools-subtab span,
.fd-ai-subtab span {
  display: block;
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  font-weight: 700;
}

.ai-tools-subtab.active,
.fd-ai-subtab.active {
  border-color: rgba(56, 213, 255, 0.48);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.35), rgba(8, 145, 178, 0.24));
}

.ai-tools-section-head {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  align-items: end;
  margin-bottom: 26px;
}

.ai-tools-section-head h2 {
  margin: 10px 0 0;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.35;
}

.ai-tools-section-head p {
  max-width: 680px;
  color: var(--ai-muted);
  line-height: 1.9;
}

.ai-tools-count {
  min-width: 190px;
  border-radius: 22px;
  padding: 16px;
  background: linear-gradient(135deg, rgba(56, 213, 255, 0.14), rgba(124, 58, 237, 0.14));
  text-align: center;
}

.ai-tools-count strong {
  display: block;
  color: var(--ai-cyan);
  font-size: 34px;
}

.ai-tools-filterbar {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto;
  gap: 12px;
  margin-bottom: 20px;
}

.ai-tools-search,
.ai-tools-input,
.ai-tools-textarea,
.ai-tools-select {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font: inherit;
}

.ai-tools-textarea {
  min-height: 110px;
  resize: vertical;
}

.ai-tools-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.ai-tools-tab {
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 999px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font-weight: 900;
  cursor: pointer;
}

.ai-tools-tab.active {
  border-color: rgba(56, 213, 255, 0.52);
  background: rgba(56, 213, 255, 0.16);
  color: #bdf5ff;
}

.ai-tools-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.ai-tools-card {
  display: grid;
  gap: 14px;
  padding: 20px;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.ai-tools-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 213, 255, 0.42);
  background: var(--ai-panel-strong);
}

.ai-tools-card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.38), rgba(56, 213, 255, 0.24));
}

.ai-tools-card h3,
.ai-tools-plan h3,
.ai-tools-panel h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.45;
}

.ai-tools-card p,
.ai-tools-plan p,
.ai-tools-panel p,
.ai-tools-detail-panel p {
  margin: 0;
  color: var(--ai-muted);
  line-height: 1.8;
}

.ai-tools-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-tools-meta span {
  border-radius: 999px;
  padding: 7px 10px;
  background: rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  font-weight: 800;
}

.ai-tools-feature-list,
.ai-tools-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ai-tools-feature-list li,
.ai-tools-list li {
  position: relative;
  padding-inline-start: 20px;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.75;
}

.ai-tools-feature-list li::before,
.ai-tools-list li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0.75em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ai-cyan);
}

.ai-tools-plan-grid,
.ai-tools-feature-grid,
.ai-tools-dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.ai-tools-plan,
.ai-tools-panel {
  padding: 22px;
}

.ai-tools-plan.featured {
  border-color: rgba(244, 201, 93, 0.55);
  background: linear-gradient(135deg, rgba(244, 201, 93, 0.16), rgba(124, 58, 237, 0.14));
}

.ai-tools-price {
  color: var(--ai-gold);
  font-size: 30px;
  font-weight: 900;
}

.ai-tools-empty {
  display: none;
  padding: 34px;
  border: 1px dashed rgba(255, 255, 255, 0.22);
  border-radius: 22px;
  color: var(--ai-muted);
  text-align: center;
}

.ai-tools-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.62);
}

.ai-tools-modal.open {
  display: grid;
}

.ai-tools-modal-panel {
  width: min(560px, 100%);
  max-height: 90vh;
  overflow: auto;
  padding: 24px;
}

.ai-tools-form {
  display: grid;
  gap: 14px;
}

.ai-tools-check-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.ai-tools-check-grid label {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.06);
}

.ai-tools-result-grid,
.ai-tools-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.ai-tools-detail-hero {
  padding: 72px 0 42px;
}

.ai-tools-detail-panel {
  padding: 24px;
}

@media (max-width: 1040px) {
  .ai-tools-hero-grid,
  .ai-tools-grid,
  .ai-tools-plan-grid,
  .ai-tools-feature-grid,
  .ai-tools-dashboard-grid,
  .ai-tools-detail-grid,
  .ai-tools-result-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .ai-tools-hero,
  .ai-tools-section {
    padding: 58px 0;
  }

  .ai-tools-hero-grid,
  .ai-tools-grid,
  .ai-tools-plan-grid,
  .ai-tools-feature-grid,
  .ai-tools-dashboard-grid,
  .ai-tools-detail-grid,
  .ai-tools-result-grid,
  .ai-tools-filterbar,
  .ai-tools-check-grid {
    grid-template-columns: 1fr;
  }

  .ai-tools-section-head {
    display: grid;
    align-items: start;
  }

  .ai-tools-actions,
  .ai-tools-card-actions,
  .ai-tools-auth-actions {
    align-items: stretch;
  }

  .ai-tools-btn {
    width: 100%;
  }

  .ai-tools-orbit {
    min-height: auto;
  }

  .ai-tools-orbit-grid {
    grid-template-columns: 1fr;
  }
}

/* 5D AI UX refinement layer */
.fd-ai-tabs-wrap {
  position: sticky;
  top: 76px;
  z-index: 35;
  background: linear-gradient(180deg, rgba(3, 17, 29, 0.96), rgba(5, 28, 44, 0.94));
  border-bottom: 1px solid rgba(88, 230, 255, 0.14);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.18);
}

.fd-ai-primary-tabs {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 12px;
  padding-bottom: 12px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.fd-ai-primary-tab {
  flex: 0 0 auto;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 9px 16px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.05);
  font-weight: 900;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.fd-ai-primary-tab:hover,
.fd-ai-primary-tab.active {
  color: #fff;
  border-color: rgba(88, 230, 255, 0.48);
  background: linear-gradient(135deg, rgba(126, 58, 242, 0.88), rgba(158, 18, 78, 0.88));
  transform: translateY(-1px);
}

.ai-tools-hero {
  min-height: auto;
  padding: 70px 0 58px;
}

.ai-tools-hero h1 {
  max-width: 860px;
  font-size: clamp(34px, 5vw, 66px);
  line-height: 1.18;
}

.ai-tools-lead {
  max-width: 880px;
}

.ai-tools-compact-section {
  padding-top: 54px;
  padding-bottom: 54px;
}

.ai-tools-start-grid,
.ai-tools-group-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.ai-tools-start-card,
.ai-tools-group-card {
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  padding: 22px;
  color: var(--ai-white);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.035)),
    rgba(255, 255, 255, 0.04);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.18);
}

.ai-tools-group-card {
  width: 100%;
  text-align: start;
  cursor: pointer;
  font: inherit;
}

.ai-tools-group-card span,
.ai-tools-card-group {
  display: inline-flex;
  margin-bottom: 10px;
  color: #58e6ff;
  font-size: 13px;
  font-weight: 900;
}

.ai-tools-group-card:hover,
.ai-tools-group-card.active,
.ai-tools-start-card:hover,
.ai-tools-card:hover,
.ai-tools-report-card:hover {
  border-color: rgba(88, 230, 255, 0.44);
  transform: translateY(-2px);
}

.ai-tools-card-top {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  min-width: 0;
}

.ai-tools-card-top h3 {
  margin: 0;
}

.ai-tools-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}

.ai-tools-show-more {
  width: auto;
}

.ai-tools-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  color: var(--ai-muted);
  font-weight: 800;
}

.ai-tools-breadcrumb a {
  color: #58e6ff;
}

.ai-tools-detail-grid {
  align-items: stretch;
}

.ai-tools-runner-grid {
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
}

.ai-tools-detail-intro {
  grid-column: 1 / -1;
}

.ai-tools-security-note,
.ai-tools-notice {
  border: 1px solid rgba(88, 230, 255, 0.18);
  border-radius: 14px;
  padding: 12px 14px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(88, 230, 255, 0.07);
  font-size: 14px;
  font-weight: 800;
}

.ai-tools-notice {
  margin: 0 0 18px;
}

.ai-tools-form-error {
  min-height: 22px;
  color: #fecaca;
  font-weight: 900;
}

.ai-tools-report-head {
  margin-bottom: 18px;
}

.ai-tools-report-head span {
  color: #58e6ff;
  font-weight: 900;
}

.ai-tools-report-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.ai-tools-report-card {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.055);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.ai-tools-report-card h4 {
  margin: 0 0 8px;
  color: #fff;
}

.ai-tools-report-card p {
  margin: 0;
  color: var(--ai-muted);
}

.ai-tools-btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

.ai-tools-final-box {
  border: 1px solid rgba(88, 230, 255, 0.22);
  border-radius: 28px;
  padding: clamp(26px, 5vw, 48px);
  background:
    radial-gradient(circle at 12% 20%, rgba(88, 230, 255, 0.16), transparent 34%),
    linear-gradient(135deg, rgba(126, 58, 242, 0.18), rgba(158, 18, 78, 0.18)),
    rgba(255, 255, 255, 0.05);
}

@media (max-width: 1040px) {
  .ai-tools-start-grid,
  .ai-tools-group-grid,
  .ai-tools-report-grid,
  .ai-tools-runner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .fd-ai-tabs-wrap {
    top: 64px;
  }

  .fd-ai-primary-tabs {
    width: min(100%, calc(100vw - 24px));
    padding-inline: 0;
  }

  .fd-ai-primary-tab {
    min-height: 44px;
    padding: 9px 14px;
    font-size: 13px;
  }

  .ai-tools-hero {
    padding: 48px 0 40px;
  }

  .ai-tools-start-grid,
  .ai-tools-group-grid,
  .ai-tools-report-grid,
  .ai-tools-runner-grid {
    grid-template-columns: 1fr;
  }
}