/* =========================================================
   Personal Blog — global stylesheet
   Direction: warm paper + ink, a serif voice for headings,
   a single pine accent for actions, hairline rules instead
   of cards/shadows. Extend the tokens below as pages are added.
   ========================================================= */

:root {
  /* Color */
  --color-bg: #f6f4ee;
  --color-surface: #fffdf9;
  --color-ink: #242320;
  --color-ink-soft: #6b6a5e;
  --color-border: #ddd6c6;
  --color-accent: #33502f;
  --color-accent-strong: #21331f;
  --color-danger: #9c3b26;
  --color-danger-strong: #7a2e1c;

  /* Type */
  --font-serif: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;

  /* Layout */
  --container-width: 860px;
  --radius: 3px;
  --line: 1px solid var(--color-border);
}

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

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

body {
  margin: 0;
}

img,
svg {
  max-width: 100%;
  display: block;
}

/* Base --------------------------------------------------------- */
body {
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 var(--space-3);
  color: var(--color-ink);
}

h1 {
  font-size: 1.9rem;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 1.4rem;
}

h3 {
  font-size: 1.1rem;
}

h4,
h5,
h6 {
  font-size: 1rem;
}

p,
li {
  max-width: 70ch;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

a:hover {
  border-bottom-color: currentColor;
}

::selection {
  background: var(--color-accent);
  color: #fff;
}

/* Layout --------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-5) var(--space-4);
}

.page-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-ink);
}

.page-header h1 {
  margin: 0;
}

/* Buttons (anchor tags styled as actions) ------------------------- */
.btn {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  line-height: 1.4;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-ink);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn:hover {
  border-color: var(--color-ink-soft);
}

.btn--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fdfdfa;
}

.btn--primary:hover {
  background: var(--color-accent-strong);
  border-color: var(--color-accent-strong);
}

.btn--danger {
  color: var(--color-danger);
}

.btn--danger:hover {
  background: var(--color-danger);
  border-color: var(--color-danger);
  color: #fdfdfa;
}

a.btn:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Forms --------------------------------------------------------------- */
.field {
  display: block;
  margin-bottom: var(--space-4);
}

.field label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-1);
}

.input,
.textarea {
  display: block;
  width: 100%;
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-ink);
}

.input:focus,
.textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.input {
  font-family: var(--font-sans);
  font-size: 1rem;
}

.textarea {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.6;
  min-height: 320px;
  resize: vertical;
}

.form-actions {
  margin-top: var(--space-4);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.subscribe {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: var(--line);
}

.subscribe h2 {
  font-size: 1.3rem;
}

.subscribe p {
  margin: 0 0 var(--space-3);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-ink-soft);
}

.subscribe-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.subscribe-form .input {
  flex: 1;
  min-width: 0;
}

.field--checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.field--checkbox label {
  display: inline;
  margin-bottom: 0;
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-ink);
}

.checkbox {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--color-accent);
}

/* Tables ------------------------------------------------------------ */
.table-wrap {
  overflow-x: auto;
}

.post-list {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-2);
}

.post-list th {
  text-align: left;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  padding: var(--space-2);
  border-bottom: var(--line);
  white-space: nowrap;
}

.post-list td {
  padding: var(--space-2);
  border-bottom: var(--line);
  vertical-align: middle;
}

.post-list tr:hover td {
  background: rgba(51, 80, 47, 0.06);
}

.post-list .post-title {
  font-weight: 500;
}

.post-list .post-date {
  color: var(--color-ink-soft);
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  white-space: nowrap;
}

.post-list .actions {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
  white-space: nowrap;
}

/* Article (public reading page) ---------------------------------------- */
.article {
  max-width: 640px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: var(--line);
}

.article-header h1 {
  font-size: 2.2rem;
  margin-bottom: var(--space-2);
}

.article-meta {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

.article-body,
.prose {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--color-ink);
}

/* Vertical rhythm: space elements from whatever precedes them,
   rather than hand-tuning margins per tag goldmark might emit. */
.article-body>*+*,
.prose>*+* {
  margin-top: var(--space-4);
}

.article-body h1,
.prose h1,
.article-body h2,
.prose h2,
.article-body h3,
.prose h3,
.article-body h4,
.prose h4,
.article-body h5,
.prose h5,
.article-body h6,
.prose h6 {
  margin-top: var(--space-5);
}

/* ...but pull back in tight to whatever follows the heading. */
.article-body h1+*,
.prose h1+*,
.article-body h2+*,
.prose h2+*,
.article-body h3+*,
.prose h3+*,
.article-body h4+*,
.prose h4+*,
.article-body h5+*,
.prose h5+*,
.article-body h6+*,
.prose h6+* {
  margin-top: var(--space-2);
}

.article-body ul,
.prose ul,
.article-body ol,
.prose ol {
  padding-left: 1.3em;
}

.article-body li+li,
.prose li+li {
  margin-top: var(--space-2);
}

.article-body li::marker,
.prose li::marker {
  color: var(--color-ink-soft);
}

.article-body blockquote,
.prose blockquote {
  margin-left: 0;
  margin-right: 0;
  margin-bottom: 0;
  padding-left: var(--space-4);
  border-left: 3px solid var(--color-border);
  color: var(--color-ink-soft);
  font-style: italic;
}

.article-body code,
.prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.15em 0.4em;
}

.article-body pre,
.prose pre {
  background: var(--color-surface);
  border: var(--line);
  border-radius: var(--radius);
  padding: var(--space-3);
  overflow-x: auto;
}

.article-body pre code,
.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.95rem;
  line-height: 1.5;
}

.article-body img,
.prose img {
  border-radius: var(--radius);
  margin: 0 auto;
}

.article-body hr,
.prose hr {
  border: none;
  border-top: var(--line);
  margin: var(--space-5) 0;
}

/* Footnotes — goldmark's extension isn't enabled yet, but this matches
   its default markup (div.footnotes > ol > li, a.footnote-ref /
   a.footnote-backref) so it's ready if you turn it on later. Double-check
   the class names against the rendered output once it's in use. */
.article-body .footnotes,
.prose .footnotes {
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: var(--line);
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}

.article-body .footnotes hr,
.prose .footnotes hr {
  display: none;
}

.article-body .footnote-ref,
.prose .footnote-ref {
  font-size: 0.75em;
}

.article-body .footnote-backref,
.prose .footnote-backref {
  margin-left: var(--space-1);
}

/* Navbar (public-facing pages) ----------------------------------------- */
.navbar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-4);
  border-bottom: var(--line);
}

.navbar a {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  color: var(--color-ink);
  border-bottom: 1px solid transparent;
}

.navbar a:hover {
  color: var(--color-accent);
  border-bottom-color: currentColor;
}

/* Empty state (e.g. under-construction placeholder) --------------------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  min-height: 55vh;
  text-align: center;
}

.empty-state h1 {
  font-size: 1.4rem;
  color: var(--color-ink-soft);
  max-width: 32ch;
}

.empty-state-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.empty-state-text h1 {
  margin: 0;
}

.empty-state-note,
.draft-mark {
  margin: 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  max-width: 32ch;
}

.empty-state-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  border: var(--line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.empty-state-icon img {
  display: block;
  max-width: 180px;
  max-height: 180px;
  width: auto;
  height: auto;
}

/* Motion & accessibility --------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}

/* Responsive ----------------------------------------------------------- */
@media (max-width: 600px) {
  .container {
    padding: var(--space-4) var(--space-3);
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .article-header h1 {
    font-size: 1.7rem;
  }
}