/*
 * base.css — global base stylesheet
 * Pakana / lockb0x-llc
 *
 * Imports design-tokens.css, then applies foundational resets and
 * utility patterns.  All pages should load this stylesheet.
 */

@import url('./design-tokens.css');

/* ─── Box model ──────────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── Document ───────────────────────────────────────────────────────────── */
html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  hanging-punctuation: first last;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-fg);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ─── Text elements ──────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-fg);
  text-wrap: balance;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-md); }

p {
  text-wrap: pretty;
  max-width: 70ch;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

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

/* ─── Lists ──────────────────────────────────────────────────────────────── */
ul[role="list"],
ol[role="list"] {
  list-style: none;
}

/* ─── Media ──────────────────────────────────────────────────────────────── */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ─── Forms ──────────────────────────────────────────────────────────────── */
input,
button,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

/* ─── Focus-visible ──────────────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ─── Reduced motion ─────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ─── Layout helpers ─────────────────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

main {
  flex: 1;
}

/* ─── Nav ────────────────────────────────────────────────────────────────── */
nav {
  height: var(--nav-height);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  text-decoration: none;
}

.nav-logo span {
  color: var(--color-fg-muted);
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-fg-muted);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-fg);
}

.nav-menu-toggle {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
}

.nav-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-fg);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* ─── Footer ─────────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding-block: var(--space-10);
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
  list-style: none;
}

.footer-nav a {
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--color-fg);
}

.footer-copy {
  margin-top: var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-fg-subtle);
  max-width: none;
}

/* ─── Responsive nav ─────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-menu-toggle {
    display: flex;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4) var(--space-6);
    gap: var(--space-4);
    z-index: var(--z-sticky);
  }
}