/* Halcyon – white cards over a mint gradient, set in Libre Franklin */

@import url('https://fonts.bunny.net/css2?family=Libre+Franklin:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

/* Header layout, set here so a change to Pagecord's base styles can't move it */
nav { justify-content: flex-end; }
.avatar-container { justify-content: space-between; align-items: flex-start; gap: 1rem; }
.blog-title { flex-grow: 0; }

:root {
  --font-size-base: 112.5%;
}

/* The gradient and link stroke are tints of the accent over --ground, the card colour darkened by squaring its lightness */
[data-theme] {
  --card: var(--color-bg);
  --ground: oklch(from var(--color-bg) calc(l * l) c h);
  --sky: linear-gradient(170deg, color-mix(in oklab, var(--color-accent) 15%, var(--ground)) 0%, color-mix(in oklab, var(--color-accent) 7%, var(--ground)) 55%, color-mix(in oklab, var(--color-accent) 3%, var(--ground)) 100%);
  --mark: color-mix(in oklab, var(--color-accent) 28%, var(--ground));
  --mark-hover: color-mix(in oklab, var(--color-accent) 44%, var(--ground));
  --shadow: 0 1px 2px rgb(20 30 25 / 0.04), 0 16px 40px -20px rgb(20 40 35 / 0.22);
  --shadow-raised: 0 1px 2px rgb(20 30 25 / 0.05), 0 24px 50px -22px rgb(20 40 35 / 0.32);
}

@media (prefers-color-scheme: dark) {
  [data-theme] {
    --sky: linear-gradient(170deg, color-mix(in oklab, var(--color-accent) 6%, var(--ground)) 0%, color-mix(in oklab, var(--color-accent) 14%, var(--ground)) 50%, color-mix(in oklab, var(--color-accent) 27%, var(--ground)) 100%);
    --card: oklch(from var(--color-bg) max(l, 0.2) c h);
    --mark: color-mix(in oklab, var(--color-accent) 48%, var(--ground));
    --mark-hover: color-mix(in oklab, var(--color-accent) 75%, var(--ground));
    --shadow: 0 0 0 1px rgb(255 255 255 / 0.05), 0 20px 44px -24px rgb(0 0 0 / 0.8);
    --shadow-raised: 0 0 0 1px rgb(255 255 255 / 0.09), 0 28px 54px -24px rgb(0 0 0 / 0.9);
  }
}

body {
  background: var(--sky) fixed;
}

.blog {
  background: transparent;
}

body[data-page-type] {
  --content-width-wide: 42rem;
}

body {
  font-family: "Libre Franklin", sans-serif;
}

.blog {
  --color-button-bg: var(--color-text-heading);
  --color-button-hover: var(--color-text);
  --color-button-text: var(--color-bg);
}

::selection {
  background-color: color-mix(in srgb, var(--color-text) 15%, transparent);
}

/* Header */

header {
  margin-top: 2rem;
  margin-bottom: 2.5rem;
  text-align: center;
}

header hr {
  width: min(100%, 20rem);
  height: 1px;
  margin: 2.5rem auto 0;
  border: 0;
  background: linear-gradient(to right, transparent, color-mix(in srgb, var(--color-text) 25%, transparent), transparent);
}

nav {
  justify-content: center;
  gap: 0.5rem 1.25rem;
  font-size: 0.85em;
}

nav a {
  color: color-mix(in srgb, var(--color-text-heading) 75%, transparent);
  font-weight: 500;
}

nav a:hover {
  color: var(--color-text-heading);
}

nav a:not(:has(svg)) {
  background-image: linear-gradient(var(--mark), var(--mark));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 0.32em;
  transition: background-size 200ms;
}

nav a:not(:has(svg)):hover {
  background-size: 100% 0.32em;
}

.titlebar {
  justify-content: center;
  margin-top: 1.5rem;
  margin-bottom: 0;
}

.avatar-container {
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.avatar,
.avatar img {
  width: 4.5rem;
  height: 4.5rem;
}

.avatar img {
  border: 3px solid var(--color-bg);
  box-shadow: var(--shadow);
}

.blog-title {
  font-size: 2.25em;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.bio {
  max-width: 30rem;
  margin: 0.625rem auto 0;
  font-size: 1em;
  line-height: 1.5;
}

/* Subscribing is one white pill: the field with its button inside */

.email-subscriber-form {
  margin-top: 1.75rem;
  padding: 0;
  background: transparent;
  font-size: 0.85em;
}

.email-subscriber-form .subscription-description {
  color: var(--color-text-muted);
}

.email-subscriber-form .form-fieldset {
  flex-direction: row;
  width: min(100%, 24rem);
  padding: 0.3rem;
  background: var(--card);
  border-radius: 9999px;
  box-shadow: var(--shadow);
}

.blog .email-subscriber-form input[type="email"] {
  flex: 1;
  width: auto;
  min-width: 0;
  padding-inline: 1rem;
  background: transparent;
  border: 0;
}

.email-subscriber-form .form-fieldset:focus-within {
  box-shadow: var(--shadow), 0 0 0 2px var(--color-focus);
}

.blog .email-subscriber-form input[type="submit"] {
  padding: 0.5rem 1.125rem;
  border-radius: 9999px;
  font-weight: 500;
}

/* Cards: words on the left, picture on the right */

.post-card {
  margin-bottom: 1.25rem;
  font-size: 0.94em;
}

.post-card-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "title" "summary" "meta";
  grid-template-rows: auto 1fr auto;
  column-gap: 2rem;
  padding: 1.75rem 2rem;
  background: var(--card);
  border: 0;
  border-radius: 1.5rem;
  box-shadow: var(--shadow);
  transition: box-shadow 250ms, transform 250ms;
}

.post-card-content:has(.post-card-image) {
  grid-template-columns: minmax(0, 1fr) min(12rem, 35%);
  grid-template-areas: "title image" "summary image" "meta image";
}

.post-card:hover .post-card-content {
  transform: translateY(-3px);
  box-shadow: var(--shadow-raised);
}

.post-card-image {
  grid-area: image;
  margin: 0;
}

.post-card-image img,
.post-card-image video {
  height: 100%;
  min-height: 9rem;
  max-height: none;
  border-radius: 1rem;
}

.post-card-title {
  grid-area: title;
  margin: 0 0 0.5rem;
  font-size: 1.5em;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--color-text-heading);
  text-wrap: balance;
}

.post-card-summary {
  grid-area: summary;
  align-self: start;
  margin-bottom: 0;
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-meta,
.post-card-meta.has-tags,
.post-card-meta.no-tags {
  grid-area: meta;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.25rem;
}

.post-card-date {
  font-size: 0.85em;
  opacity: 1;
}

.post-card-badge {
  padding: 0;
  border: 0;
  border-radius: 0;
  font-size: 0.85em;
}

.post-card-content:has(.post-card-image):not(:has(.post-card-title, .post-card-summary)) {
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "image" "meta";
  grid-template-rows: auto;
}

.post-card-content:has(.post-card-image):not(:has(.post-card-title, .post-card-summary)) img {
  aspect-ratio: 16 / 10;
  min-height: 0;
}

/* Posts and pages sit on a white sheet */

.post-stream-item,
[data-page-type="post"] article.post,
article.page {
  padding: 3rem 3.25rem;
  background: var(--card);
  border-radius: 1.5rem;
  box-shadow: var(--shadow);
}

.post-stream-item {
  margin-bottom: 1.5rem;
}

.post-body .post-stream-item {
  margin-bottom: 2.5rem;
  padding: 0 0 2.5rem;
  background: none;
  border-bottom: 1px solid var(--color-border);
  border-radius: 0;
  box-shadow: none;
}

.post-body h1.post-title {
  font-size: 1.6em;
  margin-bottom: 1rem;
}

h1.post-title {
  font-size: 2.25em;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 1.5rem;
  text-wrap: balance;
}

.post-body {
  line-height: 1.7;
}

.post-body > :first-child {
  margin-top: 0;
}

.post-body > :last-child {
  margin-bottom: 0;
}

.post-body :is(h2, h3, h4) {
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Links sit on a mint highlighter stroke that deepens on hover */

.bio a,
article .post-body a:not(:has(img, svg), .post-card-link, .post-title-link, .post-date, .tag-link),
.post-card-badge {
  color: var(--color-text-heading);
  font-weight: 500;
  text-decoration: none;
  background-image: linear-gradient(var(--mark), var(--mark));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 100% 0.32em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.bio a:hover,
article .post-body a:not(:has(img, svg), .post-card-link, .post-title-link, .post-date, .tag-link):hover,
.post-card:hover .post-card-badge {
  color: var(--color-text-heading);
  background-image: linear-gradient(var(--mark-hover), var(--mark-hover));
}

.post-body img {
  border-radius: 1rem;
}

article footer {
  margin-top: 2rem;
}

[data-page-type="post"] article.post {
  display: flex;
  flex-direction: column;
}

[data-page-type="post"] article.post > footer {
  display: contents;
}

[data-page-type="post"] article.post .post-date {
  order: -1;
  align-self: flex-start;
  margin-bottom: 0.75rem;
  font-size: 0.75em;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

[data-page-type="post"] article.post .post-actions {
  align-self: flex-end;
  margin-top: 2rem;
}

article a.post-date {
  color: var(--color-text-muted);
  text-decoration: none;
}

article a.post-date:hover {
  color: var(--color-text-heading);
}

.tag-link,
.post-body .tag-link {
  padding: 0.2rem 0.7rem;
  border-radius: 9999px;
}

/* Forms and comments sit on white sheets, with filled fields and no borders */

.contact-form,
.reply-form,
.comments {
  max-width: none;
  padding: 2.25rem 3.25rem;
  background: var(--card);
  border: 0;
  border-radius: 1.5rem;
  box-shadow: var(--shadow);
}

.comments {
  margin-top: 1.5rem;
}

.post-navigation {
  margin-block: 1.5rem 0;
  padding: 0 3.25rem;
  border: 0;
}

.post-stream-item .comments {
  padding: 1.5rem 0 0;
  background: none;
  border-top: 1px solid var(--color-border);
  border-radius: 0;
  box-shadow: none;
}

article .contact-form,
.comment-form,
.comment-notice {
  padding: 0;
  background: transparent;
  box-shadow: none;
}

.comment-notice {
  color: var(--color-text-muted);
}

.form-container {
  padding: 0;
}

.form-field label {
  margin-bottom: 0.4rem;
  font-size: 0.85em;
  font-weight: 600;
  color: var(--color-text-muted);
}

.blog :is(.contact-form, .reply-form, .comment-form) :is(input[type="text"], input[type="email"], input[type="url"], textarea) {
  padding: 0.75rem 1rem;
  background: var(--color-bg-subtle);
  border: 1px solid transparent;
  border-radius: 0.75rem;
  transition: border-color 200ms, background-color 200ms;
}

.blog :is(.contact-form, .reply-form, .comment-form) :is(input[type="text"], input[type="email"], input[type="url"], textarea):focus {
  background: var(--card);
  border-color: var(--color-border-strong);
}

.blog :is(.contact-form, .reply-form, .comment-form) input[type="submit"] {
  padding: 0.65rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
}

.blog .form a.btn-cancel {
  color: var(--color-text-muted);
}

.blog .form a.btn-cancel:hover {
  color: var(--color-text-heading);
}

.comment-by-author {
  border-radius: 0 0.75rem 0.75rem 0;
}

@media (prefers-reduced-motion: reduce) {
  .post-card:hover .post-card-content {
    transform: none;
  }
}

@media (max-width: 640px) {
  .blog-title {
    font-size: 1.875em;
  }

  .post-card {
    margin-bottom: 0.875rem;
    font-size: 0.875em;
  }

  .post-card-content {
    column-gap: 1rem;
    padding: 1.125rem 1.25rem;
    border-radius: 1.125rem;
  }

  .post-card-content:has(.post-card-image) {
    grid-template-columns: minmax(0, 1fr) 5.5rem;
    grid-template-areas: "title image" "summary image" "meta meta";
    grid-template-rows: auto 1fr auto;
  }

  .post-card-image {
    align-self: start;
  }

  .post-card-image img,
  .post-card-image video {
    height: auto;
    min-height: 0;
    aspect-ratio: 1;
    border-radius: 0.625rem;
  }

  .post-card-title {
    font-size: 1.3em;
  }

  .post-card-summary {
    -webkit-line-clamp: 2;
  }

  .post-card-meta,
  .post-card-meta.has-tags,
  .post-card-meta.no-tags {
    margin-top: 0.75rem;
  }

  .post-stream-item,
  [data-page-type="post"] article.post,
  article.page,
  .contact-form,
  .reply-form,
  .comments {
    padding: 1.75rem 1.375rem;
    border-radius: 1.25rem;
  }

  h1.post-title {
    font-size: 1.875em;
  }

  .post-navigation {
    padding-inline: 1.375rem;
  }
}