:root {
  color-scheme: light dark;
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Soularic', 'Soularic Regular', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Light theme defaults – blue + black */
  --color-bg: #eef3ff;
  --color-bg-alt: #ffffff;
  --color-fg: #0a0f1a;
  --color-muted: rgba(10, 15, 26, 0.64);
  --color-heading: #0a0f1a;
  --color-accent: #3364ff;
  --color-accent-alt: #0a1b4f;
  --color-panel: rgba(255, 255, 255, 0.94);
  --color-border: rgba(15, 31, 79, 0.12);
  --color-code: #e0e8ff;
  --color-button-primary-bg: #3364ff;
  --color-button-primary-text: #ffffff;
  --shadow-soft: 0 18px 38px -24px rgba(15, 31, 79, 0.22);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #05070f;
    --color-bg-alt: #0b1020;
    --color-fg: #ffffff;
    --color-muted: rgba(255, 255, 255, 0.72);
    --color-heading: #ffffff;
    --color-accent: #d5de24;
    --color-accent-alt: #ffffff;
    --color-panel: rgba(8, 12, 24, 0.92);
    --color-border: rgba(213, 222, 36, 0.28);
    --color-code: #0f1428;
    --color-button-primary-bg: #d5de24;
    --color-button-primary-text: #05070f;
    --shadow-soft: 0 24px 60px -36px rgba(0, 0, 0, 0.85);
  }
}

[data-theme="light"] {
  --color-bg: #eef3ff;
  --color-bg-alt: #ffffff;
  --color-fg: #0a0f1a;
  --color-muted: rgba(10, 15, 26, 0.64);
  --color-heading: #0a0f1a;
  --color-accent: #3364ff;
  --color-accent-alt: #0a1b4f;
  --color-panel: rgba(255, 255, 255, 0.94);
  --color-border: rgba(15, 31, 79, 0.12);
  --color-code: #e0e8ff;
  --color-button-primary-bg: #3364ff;
  --color-button-primary-text: #ffffff;
  --shadow-soft: 0 18px 38px -24px rgba(15, 31, 79, 0.22);
}

[data-theme="dark"] {
  --color-bg: #05070f;
  --color-bg-alt: #0b1020;
  --color-fg: #ffffff;
  --color-muted: rgba(255, 255, 255, 0.72);
  --color-heading: #ffffff;
  --color-accent: #d5de24;
  --color-accent-alt: #ffffff;
  --color-panel: rgba(8, 12, 24, 0.92);
  --color-border: rgba(213, 222, 36, 0.28);
  --color-code: #0f1428;
  --color-button-primary-bg: #d5de24;
  --color-button-primary-text: #05070f;
  --shadow-soft: 0 24px 60px -36px rgba(0, 0, 0, 0.85);
}

@font-face {
  font-family: 'Soularic';
  src: local('Soularic'), local('Soularic Regular');
  font-weight: 400;
  font-style: normal;
}

* {
  box-sizing: border-box;
}

p {
  margin: 0 0 1rem;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-fg);
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  line-height: 1.55;
  transition: background 0.3s ease, color 0.3s ease;
}

.theme-toggle {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 100;
}

.theme-toggle button {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--color-fg);
  box-shadow: var(--shadow-soft);
}

[data-theme="light"] .theme-toggle button {
  background: var(--color-bg-alt);
}

[data-theme="dark"] .theme-toggle button {
  background: rgba(8, 12, 24, 0.9);
  border-color: rgba(213, 222, 36, 0.4);
  color: #ffffff;
}

header.hero {
  background: linear-gradient(160deg, rgba(12, 18, 32, 0.9), rgba(12, 18, 32, 0.65));
  padding: 6rem 1.5rem 4.5rem;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

[data-theme="light"] header.hero {
  background: linear-gradient(150deg, rgba(79, 128, 255, 0.12), rgba(255, 255, 255, 0.95));
}

header .content {
  max-width: 800px;
  margin: 0 auto;
}

.logo {
  width: clamp(300px, 38vw, 420px);
  height: auto;
  margin-bottom: 3rem;
}

.brand-tagline {
  margin: -1.5rem auto 2.25rem;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  background: rgba(79, 128, 255, 0.12);
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  text-transform: uppercase;
  display: inline-block;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.8vw, 3.4rem);
  margin: 1.2rem 0 0.6rem;
  letter-spacing: 0.04em;
  color: var(--color-heading);
}

.lead {
  font-size: 1.15rem;
  color: var(--color-muted);
  margin: 0 auto 1.8rem;
  max-width: 680px;
}

.actions {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  color: var(--color-fg);
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease;
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.button.primary {
  background: var(--color-button-primary-bg);
  color: var(--color-button-primary-text);
  border-color: transparent;
}

.button svg.icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.button img.icon {
  width: 18px;
  height: 18px;
  display: inline-block;
  filter: none;
}

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

.button.primary:hover {
  background: var(--color-button-primary-bg);
  filter: brightness(1.05);
  color: var(--color-button-primary-text);
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4.5rem;
}

.panel {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: 1.9rem;
  margin-bottom: 2.1rem;
  box-shadow: var(--shadow-soft);
}

.panel h2 {
  margin-top: 0;
  font-size: 1.8rem;
  color: var(--color-accent);
}

.steps {
  list-style: decimal;
  padding-left: 1.4rem;
  display: grid;
  gap: 0.9rem;
}

.steps li {
  margin: 0;
}

.steps h3 {
  margin-bottom: 0.6rem;
  color: var(--color-accent-alt);
  font-size: 1.1rem;
}

pre {
  position: relative;
  background: var(--color-code);
  padding: 1rem 1.2rem;
  border-radius: 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid rgba(79, 128, 255, 0.12);
  max-width: 100%;
  padding-top: 1.5rem;
}

pre code {
  display: block;
  font-size: clamp(0.85rem, 3.2vw, 0.95rem);
  line-height: 1.5;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  white-space: pre;
}

.hljs {
  color: var(--color-fg);
}

[data-theme="dark"] .hljs {
  color: #ffffff;
}

.hljs-keyword,
.hljs-built_in,
.hljs-selector-tag {
  color: var(--color-accent);
  font-weight: 600;
}

.hljs-string,
.hljs-literal,
.hljs-number {
  color: var(--color-accent-alt);
}

.hljs-comment,
.hljs-quote {
  color: var(--color-muted);
  font-style: italic;
}

[data-theme="dark"] .hljs-comment,
[data-theme="dark"] .hljs-quote {
  color: rgba(255, 255, 255, 0.6);
}

.copy-button {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(79, 128, 255, 0.2);
  color: var(--color-muted);
  border-radius: 8px;
  font-size: 0.7rem;
  padding: 0.35rem 0.6rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

[data-theme="light"] .copy-button {
  background: rgba(51, 100, 255, 0.1);
  border-color: rgba(51, 100, 255, 0.25);
  color: var(--color-accent-alt);
}

[data-theme="dark"] .copy-button {
  background: rgba(213, 222, 36, 0.16);
  border-color: rgba(213, 222, 36, 0.35);
  color: #ffffff;
}

.copy-button svg {
  width: 12px;
  height: 12px;
}

.copy-button span {
  font-weight: 600;
  letter-spacing: 0.04em;
}

.copy-button.success {
  background: rgba(51, 100, 255, 0.18);
  border-color: rgba(51, 100, 255, 0.65);
  color: var(--color-accent);
}

[data-theme="dark"] .copy-button.success {
  background: rgba(213, 222, 36, 0.4);
  border-color: rgba(213, 222, 36, 0.8);
  color: #05070f;
}

.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

table th,
table td {
  padding: 0.7rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
}

[data-theme="dark"] table th,
[data-theme="dark"] table td {
  border-bottom: 1px solid rgba(245, 247, 250, 0.08);
}


table th {
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.note {
  margin-top: 1rem;
  color: var(--color-muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

footer {
  text-align: center;
  padding: 2rem 1rem 3rem;
  color: var(--color-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

@media (max-width: 640px) {
  header.hero {
    padding-top: 4.5rem;
  }

  .panel {
    padding: 1.7rem;
  }

  pre {
    padding: 1.3rem 0.95rem 0.9rem;
  }

  pre code {
    white-space: pre-wrap;
    word-break: break-word;
  }

  .copy-button {
    top: 0rem;
    right: 0.5rem;
    transform: none;
  }
}
p a {
  color: var(--color-accent);
  text-decoration: none;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover,
a:focus {
  color: var(--color-accent-alt);
  text-decoration: underline;
}