/* Base styles — matches stoll.studio Poole foundation */

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

html {
  font-size: 20px;
  overflow-x: clip;
}

body, html {
  font-family: var(--font-primary);
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-surface);
  color: var(--color-secondary);
  font-size: var(--font-size-body);
  line-height: var(--line-height-normal);
  font-weight: var(--font-weight-regular);
  -webkit-font-smoothing: antialiased;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  line-height: var(--line-height-tight);
  font-weight: var(--font-weight-bold);
}
h1 { font-size: var(--font-size-h1); margin-bottom: var(--space-sm); }
h2 { font-size: var(--font-size-h2); margin-top: var(--space-md); margin-bottom: var(--space-sm); }
h3 { font-size: var(--font-size-h3); margin-top: var(--space-lg); margin-bottom: var(--space-sm); }

/* Text */
p {
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
}
p:last-child { margin-bottom: 0; }

strong { color: var(--color-primary); font-weight: var(--font-weight-semibold); }
em { font-style: italic; }

/* Links */
a { color: var(--color-link); }
a:hover, a:focus { opacity: 0.75; }

/* Code */
code, pre { font-family: var(--font-monospace); }
code {
  color: var(--color-code);
  background-color: var(--color-surface-secondary);
  padding: 0.1em 0.35em;
  border-radius: 3px;
  font-size: 0.85em;
}
pre {
  background-color: var(--color-surface-secondary);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--color-secondary);
  margin: var(--space-md) 0;
}
pre code {
  color: inherit;
  background-color: transparent;
  padding: 0;
  font-size: inherit;
}

/* Rules */
hr {
  border: none;
  border-top: 1px solid var(--color-divider);
  margin: var(--space-lg) 0;
}

/* Lists */
ul, ol { padding-left: 0; margin-bottom: var(--space-md); }
ul { list-style: none; }
ul li { padding-left: 0.9em; text-indent: -0.9em; }
ul li::before { content: "\2218  "; color: var(--color-bullet); font-weight: normal; }

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  border: 1px solid var(--color-border-secondary);
}
th {
  background-color: var(--color-surface-emphasized);
  padding: 0.5em;
  text-align: left;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-small);
  color: var(--color-tertiary);
  border: 1px solid var(--color-border-secondary);
}
td {
  padding: 0.5em;
  border: 1px solid var(--color-border-secondary);
  background-color: var(--color-surface);
  color: var(--color-secondary);
}
tbody tr:nth-child(odd) td { background-color: var(--color-surface-secondary); }

/* Sticky bar */
.bar {
  position: sticky;
  top: 0;
  z-index: 99999;
  width: 100%;
  background-color: var(--color-sticky-bar-bg);
  color: var(--color-sticky-bar-text);
  text-align: center;
  font-size: 0.8em;
  line-height: 0.8;
  padding: var(--space-sticky-bar-padding);
  margin-bottom: 0.8em;
}
.bar p, .bar a { color: inherit; margin: 0; }
.bar em { font-style: italic; }

/* Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding-left: var(--space-container-padding);
  padding-right: var(--space-container-padding);
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  z-index: 100000;
  padding: 8px 16px;
  background: var(--color-black);
  color: var(--color-white);
  text-decoration: none;
  border-radius: 4px;
  font-size: 14px;
}
.skip-link:focus { top: 6px; }

/* Masthead */
.masthead {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-3xl);
}
.masthead-title {
  font-size: var(--font-size-masthead);
  font-weight: var(--font-weight-regular);
  color: var(--color-primary);
  margin: 0;
}
.masthead-title a {
  color: var(--color-primary);
  text-decoration: none;
}
.masthead-title a:hover {
  text-decoration: underline;
  text-underline-offset: 0.35em;
  text-decoration-thickness: 0.1em;
  opacity: 1;
}
.masthead-title .tagline {
  display: block;
  font-size: 0.9rem;
  margin-top: 0.3rem;
  color: var(--color-light);
}

/* Navigation */
nav ul {
  display: flex;
  gap: var(--space-gap-default);
  list-style: none;
  margin: 0;
  padding: 0;
}
nav ul li { padding-left: 0; text-indent: 0; }
nav ul li::before { content: none; }
nav ul li a {
  font-family: var(--font-navigation);
  font-size: var(--font-size-nav);
  font-weight: var(--font-weight-medium);
  color: var(--color-link);
  text-decoration: none;
}
nav ul li a:hover {
  text-decoration: underline;
  text-underline-offset: 0.35em;
  text-decoration-thickness: 0.1em;
  opacity: 1;
}

/* Footer */
.footer {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2rem;
}
.footer-text { color: var(--color-tertiary); }
.footer-text a { color: var(--color-tertiary); }
.footer-text a:hover { color: var(--color-primary); }

.theme-switcher a {
  color: var(--color-quaternary);
  text-decoration: none;
  margin-left: 0.75rem;
}
.theme-switcher a:hover { color: var(--color-primary); opacity: 1; }
.theme-switcher a.active {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 0.35em;
  text-decoration-thickness: 0.1em;
}
.theme-select { display: none; }

/* Mobile */
@media (max-width: 768px) {
  html { font-size: 18px; }
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.8rem; }
  h3 { font-size: 1.4rem; }
  .container { padding-left: 1.2rem; padding-right: 1.2rem; }
  .masthead { flex-direction: column; gap: 0.5rem; }
  nav ul { flex-wrap: wrap; gap: 0.75rem; }
  .footer { flex-direction: column; align-items: flex-end; gap: 0.5rem; }
  .theme-links { display: none; }
  .theme-select {
    display: inline-block;
    font-family: var(--font-navigation);
    font-size: 0.85rem;
    color: var(--color-quaternary);
    background-color: var(--color-surface);
    border: 1px solid var(--color-divider);
    border-radius: 3px;
    padding: 0.25rem 0.5rem;
  }
}