/* Product site — clean professional layout: light page, blue header bar */

:root {
  --header-bg: #1a5fb4;
  --header-bg-dark: #0d4a9c;
  --nav-border: #e2e8f0;
  --text: #1a1a1a;
  --muted: #5c6670;
  --surface: #ffffff;
  --surface-alt: #f6f8fb;
  --accent: #1a5fb4;
  --accent-hover: #144a8f;
  --success: #0d7d4d;
  --radius: 6px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --max: 1040px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--surface-alt);
  line-height: 1.55;
  font-size: 16px;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-hover);
}

/* Top brand bar */
.topbar {
  background: linear-gradient(180deg, var(--header-bg) 0%, var(--header-bg-dark) 100%);
  color: #fff;
  padding: 12px 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.topbar-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  text-decoration: none;
}

.logo:hover {
  color: #e8f2ff;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.logo-mark img {
  width: 32px;
  height: 32px;
  display: block;
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.tagline {
  font-size: 0.875rem;
  opacity: 0.92;
  font-weight: 400;
}

/* Main navigation */
.mainnav {
  background: var(--surface);
  border-bottom: 1px solid var(--nav-border);
  padding: 0 20px;
  box-shadow: var(--shadow);
}

.mainnav-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  gap: 0;
}

.mainnav a {
  display: inline-block;
  padding: 14px 18px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  border-bottom: 3px solid transparent;
  margin-bottom: -1px;
}

.mainnav a:hover {
  color: var(--accent);
  background: var(--surface-alt);
}

.mainnav a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 20px 48px;
}

/* Hero */
.hero {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 40px 32px;
  margin-bottom: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--nav-border);
}

.hero h1 {
  margin: 0 0 12px;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.hero .lead {
  font-size: 1.125rem;
  color: var(--muted);
  margin: 0 0 24px;
  max-width: 52ch;
}

/* Sections */
section.block {
  margin-bottom: 32px;
}

section.block h2 {
  font-size: 1.35rem;
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--nav-border);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--nav-border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--accent);
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Buttons */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff !important;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(26, 95, 180, 0.25);
  transition: background 0.15s ease, transform 0.05s ease;
}

.btn:hover {
  background: var(--accent-hover);
  color: #fff !important;
}

.btn:active {
  transform: translateY(1px);
}

.btn.secondary {
  background: #3d5a80;
  box-shadow: 0 2px 4px rgba(61, 90, 128, 0.2);
}

.btn.secondary:hover {
  background: #2f4763;
  color: #fff !important;
}

.btn-lg {
  padding: 16px 28px;
  font-size: 1.05rem;
}

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

/* Download page */
.download-hero {
  text-align: center;
  padding: 32px 24px 40px;
}

.download-hero h1 {
  margin: 0 0 8px;
  font-size: 1.85rem;
}

.version-pill {
  display: inline-block;
  background: var(--surface-alt);
  border: 1px solid var(--nav-border);
  color: var(--muted);
  font-size: 0.9rem;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.download-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 8px;
}

.download-card {
  background: var(--surface);
  border: 1px solid var(--nav-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow);
}

.download-card h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
  border: none;
  padding: 0;
}

.download-card .hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 20px;
}

.info-box {
  background: var(--surface);
  border: 1px solid var(--nav-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-top: 28px;
  box-shadow: var(--shadow);
}

.info-box h2 {
  margin: 0 0 12px;
  font-size: 1.1rem;
  border: none;
  padding: 0;
}

.info-box ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.callout {
  background: #f0f7ff;
  border: 1px solid #c5daf5;
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-top: 24px;
  box-shadow: var(--shadow);
}

.callout h2 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--text);
}

.callout p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.callout p:last-child {
  margin-bottom: 0;
}

.trust-banner {
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.trust-banner h2 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.trust-banner p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.trust-banner p:last-child {
  margin-bottom: 0;
}

.trust-signed {
  background: #e8f5e9;
  border: 1px solid #a5d6a7;
}

.trust-signed p {
  color: #1b5e20;
}

.trust-unsigned {
  background: #fff8e1;
  border: 1px solid #ffcc80;
}

/* Community / unsigned: neutral info (not “error” yellow) */
.trust-community {
  background: #f0f4fb;
  border: 1px solid #c5d4eb;
}

.trust-community p {
  color: #4a5568;
}

.trust-community h2 {
  color: var(--text);
}

.hash-section .hash-list {
  margin: 12px 0 0;
}

.hash-list dt {
  font-weight: 600;
  color: var(--text);
  margin-top: 10px;
}

.hash-list dt:first-child {
  margin-top: 0;
}

.hash-list dd {
  margin: 4px 0 0;
  padding: 0;
}

.hash-list code {
  font-size: 0.8rem;
  word-break: break-all;
  display: block;
  background: var(--surface-alt);
  border: 1px solid var(--nav-border);
  padding: 8px 10px;
  border-radius: 4px;
}

.why-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.why-list li {
  margin-bottom: 10px;
}

.why-list li:last-child {
  margin-bottom: 0;
}

.screenshot-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 8px;
}

.screenshot-grid .shot {
  margin: 0;
}

.screenshot-grid .shot figcaption {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.screenshot-grid .shot img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--nav-border);
  box-shadow: var(--shadow);
  display: block;
  background: var(--surface);
}

.small {
  font-size: 0.88rem;
  color: var(--muted);
}

footer.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 20px 40px;
  border-top: 1px solid var(--nav-border);
  color: var(--muted);
  font-size: 0.875rem;
}

footer.site-footer p {
  margin: 0 0 8px;
}

.install-snippet {
  margin: 0;
  padding: 14px 16px;
  background: #0d1117;
  color: #e6edf3;
  border-radius: var(--radius);
  border: 1px solid var(--nav-border);
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.45;
}

.install-snippet code {
  font-family: Consolas, "Segoe UI Mono", ui-monospace, monospace;
  white-space: pre;
  background: transparent;
  border: none;
  padding: 0;
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 1.5rem;
  }

  .mainnav-inner {
    flex-wrap: wrap;
  }
}