:root {
  --bg: #060b16;
  --bg-soft: #0a1323;
  --panel: rgba(11, 19, 35, 0.88);
  --panel-solid: #0d1527;
  --panel-elevated: #101b31;
  --line: rgba(148, 163, 184, 0.16);
  --line-strong: rgba(148, 163, 184, 0.28);
  --text: #e5eefc;
  --text-soft: #c2d0e7;
  --muted: #8fa2bf;
  --accent: #38bdf8;
  --accent-strong: #22d3ee;
  --accent-soft: rgba(56, 189, 248, 0.14);
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow-lg: 0 28px 72px rgba(2, 6, 23, 0.44);
  --shadow-md: 0 20px 54px rgba(2, 6, 23, 0.28);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --max: 1200px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Segoe UI", Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(34, 211, 238, 0.12), transparent 22%),
    radial-gradient(circle at 85% 0, rgba(59, 130, 246, 0.12), transparent 24%),
    linear-gradient(180deg, #040812 0%, #091224 100%);
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 999px;
  background: #fff;
  color: #020617;
  transition: top 0.18s ease;
}

.skip-link:focus {
  top: 12px;
}

.site-shell {
  min-height: 100vh;
}

.container {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
  background: rgba(4, 8, 18, 0.82);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 78px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  overflow: hidden;
  border: 1px solid rgba(56, 189, 248, 0.28);
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.22), rgba(59, 130, 246, 0.08));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.brand-mark img,
.brand-mark svg {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.brand-copy {
  min-width: 0;
}

.brand-copy strong {
  display: block;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-copy span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--text-soft);
  font-size: 14px;
  transition: 0.18s ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.site-nav .nav-cta {
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  color: #05202a;
  font-weight: 800;
}

.page-main {
  padding: 28px 0 84px;
}

.hero {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 24px;
  align-items: stretch;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(11, 19, 35, 0.95), rgba(11, 19, 35, 0.78));
  box-shadow: var(--shadow-lg);
}

.hero-copy {
  padding: 34px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.22);
  background: var(--accent-soft);
  color: #a5f3fc;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-copy h1,
.hero-copy h2 {
  margin: 18px 0 0;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.lead {
  margin: 18px 0 0;
  max-width: 780px;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.8;
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button-row.compact {
  margin-top: 16px;
}

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
  font-weight: 700;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.08);
}

.btn-primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  color: #05202a;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #68e5ff, #5bc4ff);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.02);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
  font-size: 12px;
}

.pill.live {
  border-color: rgba(34, 197, 94, 0.25);
  background: rgba(34, 197, 94, 0.08);
  color: #dcfce7;
}

.hero-visual {
  padding: 28px;
  display: grid;
  gap: 16px;
}

.hero-metric-grid,
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.metric-card,
.stat-card,
.content-card,
.tool-card,
.mini-card,
.faq-card,
.policy-card,
.contact-card,
.feature-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
}

.metric-card,
.stat-card {
  padding: 18px;
}

.metric-label,
.stat-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.metric-value,
.stat-value {
  margin-top: 10px;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.metric-copy,
.stat-copy {
  margin-top: 10px;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.65;
}

.section {
  padding-top: 56px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.section-heading h2,
.section-heading h3 {
  margin: 0;
  font-size: clamp(28px, 4vw, 38px);
  letter-spacing: -0.04em;
}

.section-heading p {
  margin: 10px 0 0;
  max-width: 760px;
  color: var(--muted);
  line-height: 1.75;
}

.grid-2,
.grid-3,
.grid-4,
.category-grid,
.tool-grid {
  display: grid;
  gap: 18px;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3,
.tool-grid {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4,
.category-grid {
  grid-template-columns: repeat(4, 1fr);
}

.content-card,
.tool-card,
.mini-card,
.faq-card,
.policy-card,
.contact-card,
.feature-card {
  padding: 24px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.tool-card h3,
.tool-card h4,
.content-card h3,
.mini-card h3,
.feature-card h3,
.faq-card h3,
.policy-card h3,
.contact-card h3 {
  margin: 0;
  font-size: 20px;
  letter-spacing: -0.03em;
}

.tool-card p,
.content-card p,
.mini-card p,
.feature-card p,
.policy-card p,
.contact-card p {
  margin: 12px 0 0;
  color: var(--text-soft);
  line-height: 1.75;
}

.tool-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.badge.live {
  border: 1px solid rgba(34, 197, 94, 0.25);
  background: rgba(34, 197, 94, 0.08);
  color: #dcfce7;
}

.badge.new {
  border: 1px solid rgba(56, 189, 248, 0.25);
  background: rgba(56, 189, 248, 0.1);
  color: #dff6ff;
}

.badge.category {
  border: 1px solid rgba(148, 163, 184, 0.22);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
}

.feature-list,
.link-list,
.check-list {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  display: grid;
  gap: 10px;
}

.feature-list li,
.check-list li {
  position: relative;
  padding-left: 18px;
  color: var(--text-soft);
  line-height: 1.7;
}

.feature-list li::before,
.check-list li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
}

.link-list a {
  color: #d8f3ff;
}

.surface-strip,
.cta-strip,
.trust-strip {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.08), rgba(15, 23, 42, 0.24));
}

.surface-strip h3,
.cta-strip h3,
.cta-strip h2,
.trust-strip h3 {
  margin: 0;
  font-size: 26px;
  letter-spacing: -0.04em;
}

.surface-strip p,
.cta-strip p,
.trust-strip p {
  margin: 12px 0 0;
  color: var(--text-soft);
  line-height: 1.75;
}

.breadcrumbs {
  margin-bottom: 22px;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumbs li:not(:last-child)::after {
  content: "/";
  color: rgba(148, 163, 184, 0.48);
}

.breadcrumbs a:hover {
  color: #fff;
}

.tool-layout {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 24px;
}

.tool-panel {
  padding: 28px;
}

.tool-panel h1 {
  margin: 14px 0 0;
  font-size: clamp(32px, 4vw, 48px);
  letter-spacing: -0.04em;
}

.tool-runtime {
  overflow: hidden;
  min-height: 640px;
}

.tool-runtime iframe {
  width: 100%;
  min-height: 760px;
  border: 0;
  background: #020617;
}

.tool-workspace {
  padding: 24px;
}

.control-grid {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  color: #cbd5e1;
  font-size: 13px;
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(2, 6, 23, 0.62);
  color: #f8fafc;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.field textarea {
  min-height: 160px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: rgba(56, 189, 248, 0.34);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.08);
}

.inline-controls {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.filter-row,
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-chip {
  appearance: none;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 700;
  transition: 0.18s ease;
}

.filter-chip:hover,
.filter-chip[aria-pressed="true"] {
  border-color: rgba(56, 189, 248, 0.28);
  background: rgba(56, 189, 248, 0.12);
  color: #dff6ff;
}

.section-copy,
.muted-copy {
  color: var(--text-soft);
  line-height: 1.75;
}

.muted-copy {
  font-size: 14px;
}

.note-box,
.info-box {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.info-box strong,
.note-box strong {
  display: block;
  font-size: 15px;
}

.info-box p,
.note-box p {
  margin: 8px 0 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.embed-shell {
  display: grid;
  gap: 16px;
}

.runtime-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.runtime-toolbar p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.runtime-toolbar .button-row {
  margin-top: 0;
}

.stat-list,
.detail-list {
  display: grid;
  gap: 12px;
}

.stat-list div,
.detail-list div {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.stat-list strong,
.detail-list strong {
  display: block;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.stat-list span,
.detail-list span {
  display: block;
  margin-top: 8px;
  color: #fff;
  font-size: 15px;
  line-height: 1.55;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.preview-box canvas,
.preview-box img {
  max-width: 100%;
  height: auto;
  border-radius: 14px;
}

.preview-box.canvas-scroll {
  overflow: auto;
}

.metric-stack {
  display: grid;
  gap: 12px;
}

.metric-stack .metric-box h3,
.metric-stack .metric-box h4 {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.metric-stack .metric-box p {
  margin: 8px 0 0;
  color: #fff;
  line-height: 1.6;
}

.tool-section {
  display: grid;
  gap: 16px;
}

.tool-section h2,
.tool-section h3 {
  margin: 0;
}

.tool-section p {
  margin: 10px 0 0;
}

.simple-list {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  display: grid;
  gap: 10px;
}

.simple-list li {
  padding-left: 18px;
  position: relative;
  color: var(--text-soft);
  line-height: 1.7;
}

.simple-list li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
}

.policy-stack,
.contact-stack {
  display: grid;
  gap: 18px;
}

.policy-stack article,
.contact-stack article {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
}

.policy-stack h2,
.policy-stack h3,
.contact-stack h2,
.contact-stack h3 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.03em;
}

.policy-stack p,
.policy-stack li,
.contact-stack p,
.contact-stack li {
  color: var(--text-soft);
  line-height: 1.8;
}

.divider-top {
  padding-top: 22px;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
}

.tool-runtime-card {
  padding: 18px;
}

.search-card {
  padding: 22px;
}

.search-card .field {
  margin-top: 16px;
}

.search-card .filter-row {
  margin-top: 16px;
}

.tool-grid .tool-card .simple-list {
  margin-top: 12px;
}

.metric-box,
.output-box,
.preview-box,
.ad-slot {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.metric-box,
.output-box,
.preview-box {
  padding: 18px;
}

.preview-box {
  display: grid;
  place-items: center;
  min-height: 260px;
  background: linear-gradient(180deg, rgba(8, 15, 30, 0.86), rgba(15, 23, 42, 0.9));
}

.output-box pre,
.output-box code {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: #f8fafc;
  line-height: 1.7;
}

.ad-slot {
  padding: 18px;
  min-height: 110px;
  display: grid;
  place-items: center;
  color: var(--muted);
  text-align: center;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  padding: 18px 20px;
  cursor: pointer;
  font-weight: 700;
}

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

.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--accent);
}

.faq-item[open] summary::after {
  content: "-";
}

.faq-body {
  padding: 0 20px 18px;
  color: var(--text-soft);
  line-height: 1.75;
}

.footer {
  border-top: 1px solid var(--line);
  background: rgba(4, 8, 18, 0.82);
}

.footer-inner {
  display: grid;
  gap: 22px;
  padding: 32px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr 0.9fr 0.9fr;
  gap: 18px;
}

.footer-card h2,
.footer-card h3,
.footer-card strong {
  margin: 0;
  font-size: 16px;
}

.footer-card p,
.footer-card li {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.footer-links {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.footer-links a {
  color: var(--text-soft);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 12px;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  color: var(--muted);
  font-size: 13px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

@media (max-width: 1080px) {
  .hero,
  .tool-layout,
  .grid-4,
  .category-grid,
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .grid-3,
  .tool-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .header-inner {
    min-height: 72px;
  }

  .brand-mark {
    width: 52px;
    height: 52px;
    border-radius: 16px;
  }

  .brand-mark img,
  .brand-mark svg {
    width: 36px;
    height: 36px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 16px;
    left: 16px;
    display: grid;
    gap: 8px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(4, 8, 18, 0.96);
    box-shadow: var(--shadow-md);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.18s ease, transform 0.18s ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    border-radius: 14px;
  }
}

@media (max-width: 780px) {
  .page-main {
    padding-top: 22px;
  }

  .hero,
  .grid-2,
  .grid-3,
  .grid-4,
  .category-grid,
  .tool-grid,
  .tool-layout,
  .hero-metric-grid,
  .stats-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-visual,
  .tool-panel,
  .tool-workspace {
    padding: 24px;
  }

  .hero-copy h1,
  .hero-copy h2,
  .tool-panel h1 {
    font-size: clamp(30px, 9vw, 44px);
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}