/* xOne Cloud — Release Notes
 * Tokens derived from src/theme/variables.scss and src/index.html
 */
:root {
  --color-primary: #0288D1;
  --color-primary-dark: #1C578C;
  --color-primary-darker: #134263;
  --color-secondary: #3dc2ff;

  --color-bg: #f4f5f8;
  --color-surface: #ffffff;
  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-strong: rgba(0, 0, 0, 0.12);

  --color-text: #222428;
  --color-text-muted: #5b5e66;
  --color-text-faint: #92949c;

  --color-success: #2dd36f;
  --color-warning: #ffc409;
  --color-danger: #FF7A77;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(28, 87, 140, 0.06);
  --shadow-md: 0 4px 12px rgba(28, 87, 140, 0.08);
  --shadow-lg: 0 12px 32px rgba(28, 87, 140, 0.12);

  --font-sans: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container-max: 960px;
  --content-max: 760px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover { color: var(--color-primary-dark); }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
}
.brand:hover { color: var(--color-text); }
.brand-mark { width: 32px; height: 32px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-weight: 600; font-size: 16px; }
.brand-sub { font-size: 12px; color: var(--color-text-faint); font-weight: 500; letter-spacing: 0.3px; text-transform: uppercase; }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
}
.back-link:hover { color: var(--color-primary); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #fff;
  padding: 72px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(61,194,255,0.15) 0%, transparent 40%);
  pointer-events: none;
}
.hero > .container { position: relative; }
.hero-eyebrow {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  margin: 0 0 12px;
}
.hero-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  line-height: 1.15;
}
.hero-accent { color: var(--color-secondary); }
.hero-lead {
  font-size: 17px;
  line-height: 1.6;
  color: rgba(255,255,255,0.85);
  max-width: 580px;
  margin: 0;
  font-weight: 300;
}

/* ---------- Latest card ---------- */
.latest-section {
  margin-top: -48px;
  margin-bottom: 64px;
  position: relative;
  z-index: 2;
}
.latest-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}
.latest-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}
.badge-latest {
  background: var(--color-success);
  color: #fff;
}
.latest-date {
  font-size: 14px;
  color: var(--color-text-muted);
  font-weight: 500;
}
.latest-version {
  font-size: 44px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  color: var(--color-primary-dark);
}
.latest-name {
  font-size: 18px;
  color: var(--color-text-muted);
  margin: 0 0 28px;
  font-weight: 400;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  transition: all 0.15s ease;
  cursor: pointer;
  border: none;
  font-family: inherit;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* ---------- Archive list ---------- */
.archive { margin-bottom: 96px; }
.archive-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin: 0 0 20px;
}
.archive-list {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.archive-item + .archive-item {
  border-top: 1px solid var(--color-border);
}
.archive-link {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px 24px;
  color: var(--color-text);
  transition: background 0.15s ease;
}
.archive-link:hover {
  background: var(--color-bg);
  color: var(--color-text);
}
.archive-version {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  min-width: 80px;
  font-variant-numeric: tabular-nums;
}
.archive-body { flex: 1; min-width: 0; }
.archive-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.archive-date {
  font-size: 13px;
  color: var(--color-text-faint);
}
.archive-chevron {
  color: var(--color-text-faint);
  flex-shrink: 0;
}

/* ---------- Empty state ---------- */
.empty {
  padding: 120px 24px;
  text-align: center;
  color: var(--color-text-muted);
}

/* ---------- Release page ---------- */
.release-hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #fff;
  padding: 56px 0 64px;
}
.release-meta {
  margin-bottom: 14px;
}
.release-date {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
}
.release-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  line-height: 1.1;
}
.release-subtitle {
  font-size: 18px;
  font-weight: 400;
  color: rgba(255,255,255,0.85);
  margin: 0;
  max-width: 640px;
}
.release-content {
  max-width: var(--content-max);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 56px 56px 64px;
  margin-top: -32px;
  margin-bottom: 96px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
.release-content h1,
.release-content h2,
.release-content h3,
.release-content h4 {
  color: var(--color-primary-dark);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 2em;
  margin-bottom: 0.6em;
  line-height: 1.3;
}
.release-content > *:first-child { margin-top: 0; }
.release-content h1 { font-size: 28px; }
.release-content h2 { font-size: 22px; }
.release-content h3 { font-size: 18px; }
.release-content h4 { font-size: 16px; }
.release-content p { margin: 0 0 1.1em; }
.release-content ul, .release-content ol { margin: 0 0 1.1em; padding-left: 1.6em; }
.release-content li { margin-bottom: 0.4em; }
.release-content code {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
}
.release-content pre {
  background: #0f1419;
  color: #e6e6e6;
  padding: 18px 22px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.5;
  margin: 0 0 1.4em;
}
.release-content pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: inherit;
}
.release-content blockquote {
  border-left: 4px solid var(--color-primary);
  background: var(--color-bg);
  padding: 12px 18px;
  margin: 0 0 1.2em;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}
.release-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.4em;
  font-size: 14px;
}
.release-content th,
.release-content td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
}
.release-content th {
  background: var(--color-bg);
  font-weight: 600;
  color: var(--color-text);
}
.release-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: 1em 0;
}
.release-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2em 0;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  font-size: 13px;
  color: var(--color-text-muted);
}
.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.muted { color: var(--color-text-faint); }

/* ---------- Mobile ---------- */
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .hero { padding: 56px 0 80px; }
  .latest-card { padding: 28px 24px; }
  .latest-version { font-size: 36px; }
  .release-content { padding: 32px 24px 40px; border-radius: var(--radius-md); }
  .release-content h1 { font-size: 24px; }
  .archive-link { padding: 16px; gap: 14px; }
  .archive-version { min-width: 60px; font-size: 16px; }
  .footer-row { flex-direction: column; gap: 6px; }
  .brand-sub { display: none; }
}