/* Podstawowe zmienne kolorów i typografii */
:root {
  --color-bg: #0f172a;
  --color-bg-elevated: #111827;
  --color-border-subtle: #1f2937;
  --color-primary: #38bdf8;
  --color-primary-soft: rgba(56, 189, 248, 0.1);
  --color-text-main: #e5e7eb;
  --color-text-muted: #9ca3af;
  --color-text-strong: #f9fafb;
  --color-accent: #22c55e;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.75);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --transition-fast: 0.18s ease-out;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #1d283a 0, #020617 55%);
  color: var(--color-text-main);
  line-height: 1.6;
}

/* Layout */

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.9),
    rgba(15, 23, 42, 0.85),
    transparent
  );
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0.5rem;
  gap: 1rem;
}

.branding {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.site-title {
  margin: 0;
  font-size: 1.3rem;
  letter-spacing: 0.03em;
  color: var(--color-text-strong);
}

.site-tagline {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.site-nav {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.site-nav__link {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: var(--transition-fast);
}

.site-nav__link:hover {
  color: var(--color-text-strong);
  border-color: rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.85);
}

/* Main */

.site-main {
  flex: 1;
  padding: 2rem 0 3rem;
}

/* Sections */

.section {
  margin-bottom: 2.5rem;
}

.section--hero {
  margin-bottom: 3rem;
}

.section__header {
  margin-bottom: 1.5rem;
}

.section__title {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  color: var(--color-text-strong);
}

.section__subtitle {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.section__lead {
  font-size: 1.05rem;
  color: var(--color-text-strong);
  margin-bottom: 0.75rem;
}

.section__text {
  margin: 0;
  color: var(--color-text-muted);
}

/* Info box */

.info-box {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(
    135deg,
    rgba(56, 189, 248, 0.08),
    rgba(37, 99, 235, 0.1)
  );
  border: 1px solid rgba(56, 189, 248, 0.4);
}

.info-box__title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  color: var(--color-text-strong);
}

.info-box__list {
  margin: 0.25rem 0 0;
  padding-left: 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Section grid */

.section__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

@media (min-width: 800px) {
  .section__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card--full {
    grid-column: 1 / -1;
  }
}

/* Cards */

.card {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-subtle);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 0 0,
    rgba(56, 189, 248, 0.15),
    transparent 55%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.card:hover::before {
  opacity: 1;
}

.card__title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--color-text-strong);
}

.card__text {
  margin: 0 0 0.9rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.card__list {
  margin: 0.35rem 0 0;
  padding-left: 1.1rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Code blocks */

.code-block {
  border-radius: calc(var(--radius-lg) + 2px);
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: #020617;
  overflow: hidden;
  font-size: 0.85rem;
}

.code-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid rgba(15, 23, 42, 0.9);
  background: radial-gradient(
      circle at top left,
      rgba(56, 189, 248, 0.18),
      transparent
    ),
    #020617;
}

.code-block__label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

.code-block__copy {
  font-size: 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: transparent;
  color: var(--color-text-main);
  padding: 0.25rem 0.8rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition-fast);
}

.code-block__copy:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-text-strong);
}

.code-block pre {
  margin: 0;
  padding: 0.7rem 0.8rem 0.9rem;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  color: #e5e7eb;
  tab-size: 2;
  white-space: pre;
}

.code-block code {
  font-size: 0.84rem;
}

.code-block__feedback {
  display: block;
  padding: 0 0.8rem 0.6rem;
  font-size: 0.78rem;
  color: var(--color-accent);
  min-height: 0.8rem;
}

/* Screenshots */

.screenshot {
  margin: 0.75rem 0 0;
}

.screenshot img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.85);
}

.screenshot__caption {
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Grid for multiple screenshots in a card */

.screenshot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

@media (min-width: 800px) {
  .screenshot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(30, 64, 175, 0.6);
  background: radial-gradient(circle at top, #020617 0, #020617 50%, #020617 100%);
}

.site-footer__inner {
  padding: 1rem 0;
  text-align: center;
}

.site-footer__text {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Misc */

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
}