/* Piotr's Personal Assistant — local styles. No external resources. */

:root {
  --bg: #ffffff;
  --surface: #f6f7f9;
  --border: #e2e5ea;
  --text: #1f2430;
  --muted: #5b6475;
  --accent: #2f6df6;
  --accent-contrast: #ffffff;
  --max-width: 860px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11141a;
    --surface: #171b23;
    --border: #272d38;
    --text: #e7eaf0;
    --muted: #9aa3b2;
    --accent: #6ea0ff;
    --accent-contrast: #0b0d12;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, "Noto Sans", sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

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

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.site-header .container {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  padding-top: 20px;
  padding-bottom: 20px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand .title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand .subtitle {
  font-size: 0.9rem;
  color: var(--muted);
}

/* Navigation */
nav.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

nav.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

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

nav.site-nav a[aria-current="page"] {
  color: var(--text);
}

/* Main */
main {
  padding: 40px 0 8px;
}

h1 {
  font-size: 1.9rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

.lead {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 28px;
}

h2 {
  font-size: 1.25rem;
  margin: 32px 0 8px;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 16px;
}

ul {
  margin: 0 0 16px;
  padding-left: 1.3em;
}

li {
  margin: 4px 0;
}

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

.updated {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 24px;
}

.note {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  margin: 0 0 24px;
}

.note-text {
  margin: 0;
}

/* Button-style links */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 8px;
}

.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.btn.primary {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: transparent;
}

.btn:hover,
.btn:focus {
  border-color: var(--accent);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

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

/* Responsive */
@media (max-width: 600px) {
  body {
    font-size: 16px;
  }
  main {
    padding-top: 28px;
  }
  h1 {
    font-size: 1.6rem;
  }
}