:root {
  --teal-300: #5eead4;
  --teal-500: #14b8a6;
  --teal-600: #0d9488;
  --teal-700: #0f766e;
  --accent: #e67e22;
  --ink: #1e293b;

  --bg: #ffffff;
  --bg-soft: #f4f8f8;
  --surface: #ffffff;
  --border: #dde7e6;
  --text: var(--ink);
  --text-muted: #55657a;
  --link: var(--teal-700);
  --primary: var(--teal-600);
  --primary-hover: var(--teal-700);
  --primary-text: #ffffff;
  --code-bg: #0f1d24;
  --code-text: #d7f5f0;
  --shadow: 0 1px 2px rgba(15, 29, 36, 0.06), 0 8px 24px rgba(15, 29, 36, 0.08);

  --radius: 12px;
  --max: 1120px;
  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1519;
    --bg-soft: #111d22;
    --surface: #15232a;
    --border: #23363e;
    --text: #e3eef0;
    --text-muted: #9bb0b8;
    --link: var(--teal-300);
    --primary: var(--teal-500);
    --primary-hover: var(--teal-300);
    --primary-text: #062a26;
    --code-bg: #08110f;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
  .brand .logo-light { display: none; }
  .brand .logo-dark { display: inline; }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 {
  font-family: var(--font-head);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; }

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.1em 0.4em;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

.logo-dark { display: none; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}
.brand img { height: 34px; width: auto; }
.nav {
  display: flex;
  gap: 20px;
  margin-left: auto;
  font-size: 0.95rem;
}
.nav a { color: var(--text-muted); }
.nav a:hover { color: var(--text); text-decoration: none; }
.lang {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  font-size: 0.85rem;
  font-weight: 600;
}
.lang a, .lang span { padding: 4px 11px; }
.lang span { background: var(--primary); color: var(--primary-text); }
.lang a { color: var(--text-muted); }
.lang a:hover { text-decoration: none; color: var(--text); }

@media (max-width: 760px) {
  .nav { display: none; }
  .lang { margin-left: auto; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--surface);
  transition: transform 0.12s ease, background 0.12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-text);
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

/* Hero */
.hero {
  padding: 72px 0 40px;
  background:
    radial-gradient(ellipse 60% 50% at 85% 0%, color-mix(in srgb, var(--teal-300) 22%, transparent), transparent),
    radial-gradient(ellipse 40% 40% at 0% 30%, color-mix(in srgb, var(--accent) 10%, transparent), transparent);
}
.hero .eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--teal-700);
  background: color-mix(in srgb, var(--teal-300) 25%, transparent);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 18px;
}
@media (prefers-color-scheme: dark) {
  .hero .eyebrow { color: var(--teal-300); }
}
.hero h1 { max-width: 16ch; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lead {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 60ch;
}
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 44px; }

.frame {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--surface);
}
.frame-bar {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}
.frame-bar i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--border);
}

/* Sections */
section { padding: 72px 0; }
section[id] { scroll-margin-top: 64px; }
section.alt { background: var(--bg-soft); }
.section-head { max-width: 680px; margin-bottom: 40px; }
.section-head p { color: var(--text-muted); font-size: 1.1rem; }

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.card .icon {
  font-size: 1.6rem;
  line-height: 1;
  margin-bottom: 14px;
}
.card p { color: var(--text-muted); margin: 0; font-size: 0.97rem; }

/* Gallery */
.gallery {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 460px), 1fr));
}
.gallery figure { margin: 0; }
.gallery figcaption {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.gallery figcaption strong { color: var(--text); }

/* Docker */
.split {
  display: grid;
  gap: 40px;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  align-items: start;
}
@media (max-width: 860px) { .split { grid-template-columns: minmax(0, 1fr); } }

.code {
  position: relative;
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: var(--radius);
  padding: 20px 90px 20px 22px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.7;
  overflow-x: auto;
  margin: 0 0 16px;
}
.code code {
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
  font-size: inherit;
  white-space: pre;
}
.copy {
  position: absolute;
  top: 10px;
  right: 10px;
  font: 600 0.8rem var(--font-body);
  color: var(--code-text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  padding: 4px 10px;
  cursor: pointer;
}
.copy:hover { background: rgba(255, 255, 255, 0.16); }

.checks { list-style: none; padding: 0; margin: 0 0 20px; }
.checks li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
}
.checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 0a10 10 0 1 0 0 20 10 10 0 0 0 0-20zm-1.2 14.2-4-4 1.4-1.4 2.6 2.6 5.6-5.6 1.4 1.4-7 7z'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 0a10 10 0 1 0 0 20 10 10 0 0 0 0-20zm-1.2 14.2-4-4 1.4-1.4 2.6 2.6 5.6-5.6 1.4 1.4-7 7z'/%3E%3C/svg%3E") center / contain no-repeat;
}

/* Saving */
.compare {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
}
.compare .card h3 { display: flex; align-items: center; gap: 10px; }
.compare ul { margin: 12px 0 0; padding-left: 20px; color: var(--text-muted); }
.compare li { margin-bottom: 6px; }
.note {
  margin-top: 24px;
  padding: 16px 20px;
  border-left: 4px solid var(--accent);
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text-muted);
}
.note strong { color: var(--text); }

/* Demo banner */
.demo {
  text-align: center;
  background:
    radial-gradient(ellipse 60% 80% at 50% 0%, color-mix(in srgb, var(--teal-300) 20%, transparent), transparent),
    var(--bg-soft);
}
.demo p { color: var(--text-muted); max-width: 62ch; margin: 0 auto 26px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  color: var(--text-muted);
  font-size: 0.93rem;
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 40px;
  justify-content: space-between;
}
.site-footer p { margin: 0; max-width: 62ch; }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }