:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-strong: #101827;
  --text: #162033;
  --muted: #657186;
  --border: #dce3ef;
  --brand: #1f6feb;
  --brand-dark: #174ea6;
  --accent: #10a37f;
  --warning-bg: #fff7e6;
  --warning-border: #f5cc7a;
  --shadow: 0 24px 60px rgba(16, 24, 39, 0.10);
  --radius: 18px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #e6f0ff 0, transparent 30%), var(--bg);
  color: var(--text);
  line-height: 1.5;
}

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

button,
input,
select {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(245, 247, 251, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(220, 227, 239, 0.75);
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--surface-strong);
  color: #ffffff;
  letter-spacing: -0.04em;
}

.nav-links {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-weight: 600;
}

.nav-links a:hover {
  color: var(--text);
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 32px;
  align-items: center;
  min-height: 480px;
}

.eyebrow {
  color: var(--brand);
  text-transform: uppercase;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  font-weight: 800;
  margin: 0 0 10px;
}

h1,
h2 {
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 0;
}

h1 {
  font-size: clamp(2.7rem, 7vw, 5.2rem);
  max-width: 820px;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.hero-text,
.section-heading p,
.panel p,
.privacy-panel li {
  color: var(--muted);
  font-size: 1.03rem;
}

.hero-text {
  max-width: 680px;
  margin: 22px 0 0;
}

.hero-actions,
.control-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button,
.icon-button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  cursor: pointer;
  font-weight: 800;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.button:hover,
.icon-button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--brand);
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(31, 111, 235, 0.25);
}

.button.primary:hover {
  background: var(--brand-dark);
}

.button.secondary,
.icon-button {
  background: #e9eef8;
  color: var(--text);
}

.hero-card,
.panel,
.controls,
.output-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  overflow: hidden;
}

.code-card-header {
  height: 48px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px;
  background: #eef3fb;
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 99px;
  background: #b8c3d5;
}

.hero-card pre,
.output {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

.hero-card pre {
  padding: 22px;
  font-size: 0.92rem;
  color: #d5e7ff;
  background: #0e1726;
  min-height: 260px;
}

.notice {
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 18px 0 28px;
}


.ad-container {
  margin: 28px 0;
  min-height: 90px;
  text-align: center;
}

.ad-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}


.panel {
  padding: 28px;
}

.section-heading {
  margin-bottom: 24px;
}

.generator-panel {
  padding: 32px;
}

.generator-grid {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 24px;
}

.controls {
  padding: 22px;
  box-shadow: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.controls label:not(.checkbox-row label) {
  color: var(--text);
  font-weight: 800;
  margin-top: 8px;
}

.controls select,
.controls input[type="text"],
.controls input[type="number"],
.controls input:not([type]) {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 13px;
  background: #fbfcff;
}

.checkbox-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 8px 0 0;
  color: var(--muted);
}

.output-wrap {
  overflow: hidden;
  box-shadow: none;
}

.output-toolbar {
  min-height: 64px;
  padding: 14px 18px;
  background: #eef3fb;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.output-toolbar span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}

.output {
  min-height: 420px;
  max-height: 680px;
  overflow: auto;
  padding: 20px;
  background: #0e1726;
  color: #d5e7ff;
  font-size: 0.9rem;
}

.explanation {
  border-top: 1px solid var(--border);
  padding: 18px 20px;
  background: #fbfcff;
  color: var(--muted);
}

.explanation h3 {
  margin: 0 0 8px;
  color: var(--text);
}

.explanation ul {
  margin: 8px 0 0;
  padding-left: 20px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 28px 0;
}

.privacy-panel ul {
  margin-bottom: 0;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 920px) {
  .hero,
  .generator-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  main {
    padding-top: 28px;
  }
}

@media (max-width: 560px) {
  .nav-links {
    width: 100%;
    justify-content: space-between;
  }

  .generator-panel,
  .panel {
    padding: 20px;
  }

  .controls,
  .output {
    font-size: 0.92rem;
  }
}

.support-panel {
  margin: 28px 0;
}

.landing-card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  background: #fbfcff;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.landing-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(16, 24, 39, 0.10);
  border-color: #b9c8dc;
}

.landing-card span {
  display: inline-block;
  color: var(--brand);
  font-weight: 800;
  font-size: 0.82rem;
  margin-bottom: 8px;
}

.landing-card strong {
  display: block;
  font-size: 1.08rem;
  line-height: 1.25;
}

.landing-card small {
  display: block;
  color: var(--muted);
  margin-top: 8px;
  font-size: 0.92rem;
}

.landing-hero {
  min-height: auto;
  padding: 46px 0 18px;
}

.landing-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 24px;
  align-items: start;
  margin-top: 28px;
}

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

.inline-list {
  color: var(--muted);
  padding-left: 20px;
}

.inline-list li + li {
  margin-top: 8px;
}

@media (max-width: 920px) {
  .landing-layout {
    grid-template-columns: 1fr;
  }
}

.script-warning {
  max-width: 1180px;
  margin: 16px auto;
  padding: 16px 18px;
  border: 1px solid var(--warning-border);
  border-radius: var(--radius);
  background: var(--warning-bg);
  color: var(--text);
  font-weight: 700;
}


.field-hint {
  color: var(--muted);
  font-size: 0.88rem;
  margin: -2px 0 4px;
}

.limit-notice {
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: 12px;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
  margin: 0;
  padding: 10px 12px;
}

.output-toolbar #outputHint {
  margin-top: 4px;
  max-width: 760px;
}

.trust-panel {
  margin: 28px 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 22px;
}

.trust-grid article {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fbfcff;
  padding: 18px;
}

.trust-grid h3 {
  margin: 0 0 8px;
  color: var(--text);
}

.trust-grid p {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 920px) {
  .trust-grid {
    grid-template-columns: 1fr;
  }
}


.legal-hero {
  min-height: 300px;
  grid-template-columns: minmax(0, 1fr);
}

.legal-panel {
  margin-top: 28px;
}

.two-column-list {
  columns: 2;
  column-gap: 32px;
}

.last-updated {
  margin-top: 22px;
  font-size: 0.95rem;
}

.footer-links {
  margin-top: 6px;
  font-size: 0.95rem;
}

.footer-links a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 720px) {
  .two-column-list {
    columns: 1;
  }
}

.faq-panel,
.privacy-panel {
  margin: 28px 0;
}

.faq-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.faq-list details {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fbfcff;
  padding: 16px 18px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
  color: var(--text);
}

.faq-list p {
  margin: 10px 0 0;
  color: var(--muted);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 22px;
}

.summary-grid article {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fbfcff;
  padding: 18px;
}

.summary-grid h3 {
  margin: 0 0 8px;
  color: var(--text);
}

.summary-grid p,
.summary-grid li {
  color: var(--muted);
}

.summary-grid ul {
  margin-bottom: 0;
}

@media (max-width: 920px) {
  .summary-grid {
    grid-template-columns: 1fr;
  }
}