/*!
 * theme.css — Brand colors as CSS custom properties, font imports, typography scale, header/footer
 * Variant: 01-minimalist-cinema-3 — Grid-Based
 * Self-hosted fonts: Montserrat ExtraBold (headline), Inter Regular (body), Roboto Medium (ui), JetBrains Mono (code)
 */

/* ─── Self-hosted font imports ─────────────────────────────────────────────── */
@font-face {
  font-family: 'Montserrat ExtraBold';
  src:
    url('./fonts/montserrat-extra-bold.woff2') format('woff2'),
    url('./fonts/montserrat-extra-bold.woff') format('woff');
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter Regular';
  src:
    url('./fonts/inter-regular.woff2') format('woff2'),
    url('./fonts/inter-regular.woff') format('woff');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Roboto Medium';
  src:
    url('./fonts/roboto-medium.woff2') format('woff2'),
    url('./fonts/roboto-medium.woff') format('woff');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'JetBrains Mono';
  src:
    url('./fonts/jetbrains-mono-regular.woff2') format('woff2'),
    url('./fonts/jetbrains-mono-regular.woff') format('woff');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ─── Typography ─────────────────────────────────────────────────────────────── */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-headline);
  font-weight: 400;
  line-height: 1.1;
  color: var(--color-secondary);
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

h4 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
  max-width: 65ch;
  color: var(--color-text-muted);
}

code {
  font-family: var(--font-code);
  font-size: 0.875em;
  background-color: var(--color-surface);
  color: var(--color-accent);
  padding: 0.125em 0.375em;
  border-radius: var(--radius-sm);
}

pre {
  font-family: var(--font-code);
  font-size: 0.875rem;
  line-height: 1.5;
  background-color: var(--color-surface);
  color: var(--color-secondary);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--space-md);
}

pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* ─── Layout helpers ─────────────────────────────────────────────────────────── */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.section {
  padding-block: var(--space-4xl);
}

/* ─── Header ─────────────────────────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgb(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgb(26, 26, 26, 0.1);
  height: var(--header-height);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* ─── Footer ─────────────────────────────────────────────────────────────────── */

.site-footer {
  background-color: var(--color-surface);
  color: var(--color-secondary);
  padding-block: var(--space-3xl);
  margin-top: auto;
  border-top: 1px solid rgb(26, 26, 26, 0.1);
}

.site-footer a {
  color: var(--color-muted);
}

.site-footer a:hover {
  color: var(--color-secondary);
}

.footer-inner {
  display: grid;
  gap: var(--space-xl);
}

.footer-tagline {
  font-family: var(--font-ui);
  font-size: 1.125rem;
  color: var(--color-muted);
  margin-bottom: var(--space-lg);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-xl);
}

.footer-col h3 {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
}

.footer-col ul {
  display: grid;
  gap: var(--space-sm);
}

.footer-col a {
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-top: var(--space-xl);
}

/* ─── Primary Navigation ──────────────────────────────────────────────────────── */

.nav-primary {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-left: auto;
}

.nav-menu a {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-muted);
  position: relative;
  padding-block: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a[aria-current='page'] {
  color: var(--color-secondary);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-menu a:hover::after,
.nav-menu a[aria-current='page']::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-sm);
  cursor: pointer;
  color: var(--color-secondary);
  min-width: 44px;
  min-height: 44px;
}

.nav-toggle[aria-expanded='true'] {
  color: var(--color-accent);
}

/* ─── Responsive nav ────────────────────────────────────────────────────────── */

@media (width <= 768px) {
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-menu {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--color-primary);
    padding: var(--space-lg);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }

  .nav-menu.is-open {
    transform: translateX(0);
  }

  .nav-menu a {
    display: block;
    padding: var(--space-md);
    font-size: 1rem;
    border-bottom: 1px solid rgb(26, 26, 26, 0.1);
  }

  .nav-menu a::after {
    display: none;
  }

  .nav-menu a[aria-current='page'] {
    color: var(--color-accent);
  }
}