/* ============================= */
/* Layout - Page Structure       */
/* ============================= */

/* Universal box-sizing to include padding in width calculations */
*, *::before, *::after {
  box-sizing: border-box;
}

/* Body layout - vertical flex container */
body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: var(--font-body, var(--font-sans));
}

/* Main content area - grows vertically */
main {
  margin-top: 0;
  padding: 0 1em;
  display: flex;
  flex-grow: 1;
  font-size: var(--font-size-standard);
}

/* Blog content container - applies width constraints and padding */
.blog-container {
  margin-inline: auto;
  width: 100%;
}

/* Content width modifiers (applied via content_width_class helper) */
.max-w-content-narrow {
  max-width: var(--content-width-narrow);
}

.max-w-content-standard {
  max-width: var(--content-width-standard);
}

.max-w-content-wide {
  max-width: var(--content-width-wide);
}

/* Footer - centered with padding */
footer.blog-footer {
  width: 100%;
  display: flex;
  flex-direction: column;
  text-align: center;
  padding: 2rem;
  color: var(--color-text-light);
}

footer.blog-footer #brand svg {
  width: 110px;
  margin-top: 2rem;
  display: inline-flex;
  color: var(--color-text-heading);
}

/* ================================== */
/* Blog Components (Pure CSS)        */
/* ================================== */

/* Apply base theme styles to html and body */
html, body {
  background-color: var(--color-bg);
  color: var(--color-text);
}

/* ============================= */
/* Links - Remove default underline except in article content */
/* ============================= */

:where(a) {
  text-decoration: none;
}


/* Header
/* -------------------------------------------------------------------------- */

:where(.blog) {
  :where(header) {
    margin-top: 1rem;
    margin-bottom: 2rem;

    :where(hr) {
      padding: 0;
      margin: 0;
      border: none;
      border-top: 1px solid var(--color-border);
    }
  }

  :where(nav) {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875em;

    :where(a) {
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-text-muted);

      &:hover {
        color: var(--color-text);
      }
    }

    svg {
      width: 1rem;
      height: 1rem;
    }
  }

  :where(.titlebar) {
    margin-top: 1.25em;
    margin-bottom: 1.25em;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  :where(.avatar-container) {
    display: flex;
    width: 100%;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
  }

  :where(.avatar) {
    width: 4rem;
    height: 4rem;
    flex-shrink: 0;

    :where(img) {
      box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      object-fit: cover;
      border-radius: 9999px;
      border: 1px solid var(--color-border);
      width: 4rem;
      height: 4rem;
    }
  }

  :where(.bio) {
    --lexxy-color-ink: var(--color-text-muted);
    --lexxy-content-margin: 1rem;

    margin-top: 1.5em;
    margin-bottom: 1.5em;
    font-size: 0.875em;
    color: var(--color-text-muted);
    word-break: break-words;

    :where(a) {
      color: var(--color-accent);
      text-decoration: underline;
      font-weight: 400 !important;

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

    strong,
    b {
      color: var(--color-text);
    }
  }

  :where(.blog-title) {
    color: var(--color-text-heading);
    font-size: 1.25em;
    font-weight: 700;
  }
}

/* Article
/* -------------------------------------------------------------------------- */

:where(.blog) {
  :where(article) {
    --lexxy-color-ink: var(--color-text);
    --lexxy-color-ink-medium: var(--color-text-muted);
    --lexxy-color-ink-light: var(--color-text-light);
    --lexxy-color-ink-lighter: var(--color-text-disabled);
    --lexxy-color-ink-lightest: var(--color-bg-sunken);
    --lexxy-color-text: var(--color-text);
    --lexxy-color-text-subtle: var(--color-text-muted);
    --lexxy-color-link: var(--color-accent);
    --lexxy-color-accent-dark: var(--color-accent);
    --lexxy-color-accent-medium: var(--color-accent-hover);
    --lexxy-color-code-bg: var(--color-bg-subtle);

    max-width: none;
    color: var(--color-text) !important;
    text-wrap: pretty;
    overflow-wrap: break-word;
    word-break: break-word;

    :where(a) {
      color: var(--color-accent);
      text-decoration: underline;

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

      &.post-title-link {
        text-decoration: none;
      }
    }

    :where(blockquote) {
      color: var(--color-text-muted);
      border-left-color: var(--color-border);
    }

    li::marker {
      color: var(--color-text-light);
    }

    h1.post-title {
      font-size: 1.875rem;
      line-height: 2.25rem;
      margin-top: 0;
      margin-bottom: 2rem;
      color: var(--color-text-heading);
      font-weight: 800;
    }

    figcaption.attachment__caption {
      text-align: center;
      padding-left: 1rem;
      padding-right: 1rem;
      margin-top: 0.5rem;

      @media (min-width: 640px) {
        padding-left: 2rem;
        padding-right: 2rem;
      }
    }

    :where(code),
    :where(pre) {
      background-color: var(--color-bg-subtle) !important;
    }

    :where(audio) {
      margin: var(--lexxy-content-margin) 0;
      width: 100%;
      max-width: 500px;
    }
  }
}

/* Post footer
/* -------------------------------------------------------------------------- */

:where(.blog) {
  :where(footer) {
    font-size: 0.875em;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 2rem;
    margin-bottom: 1.5rem;

    a,
    button {
      color: var(--color-text-light);
      background-color: inherit;

      &:hover {
        color: var(--color-text-muted);
      }
    }

    .tags-container + & {
      margin-top: 1rem;
    }

    .post-actions {
      display: flex;
      align-items: center;
      gap: 0.5rem;

      a {
        display: flex;
      }
    }
  }

  :where(.tag) {
    font-size: 0.875em;
  }

  :where(.icon) {
    width: 1.5em;
    height: 1.5em;
  }
}


/* Forms
/* -------------------------------------------------------------------------- */

:where(.blog) {
  :where(.form) {
    padding: 1rem;
    border-radius: 0.5rem;
    background-color: var(--color-bg-subtle);
    color: var(--color-text);
    border: none;

    label {
      font-weight: 500;
    }

    .button {
      font-size: 0.875em;
    }

    a.btn-cancel {
      display: inline-flex;
      align-items: center;
      font-weight: 500;
      color: inherit;
    }

    input[type="text"],
    input[type="email"],
    textarea {
      font-family: inherit;
      font-size: 1em;
      background-color: var(--color-input-bg);
      border: 1px solid var(--color-input-border);
      color: var(--color-text);
      border-radius: 0.375rem;
      padding: 0.5rem 0.75rem;
      box-shadow: none;

      &:focus {
        border-color: var(--color-input-focus);
        outline: none;
      }
    }

    textarea {
      resize: vertical;
      max-width: 100%;
    }

    input[type="email"]::placeholder {
      color: var(--color-placeholder);
    }

    input[type="submit"] {
      font-family: inherit;
      font-size: inherit;
      background-color: var(--color-button-bg);
      color: var(--color-button-text);
      border-radius: 0.375rem;
      padding: 0.5rem 0.75rem;
      cursor: pointer;
      border: none;

      &:hover {
        background-color: var(--color-button-hover);
      }
    }
  }

  /* Email subscription form */
  :where(.email-subscriber-form) {
    input[type="email"] {
      border-top-right-radius: 0;
      border-bottom-right-radius: 0;
      border-right: none;
    }

    input[type="submit"] {
      border-top-left-radius: 0;
      border-bottom-left-radius: 0;
      padding: 0.25rem 0.75rem;
    }
  }

  /* Confirmation card */
  :where(.confirmation-card) {
    background-color: var(--color-bg-subtle);
    text-align: center;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--color-border);
    color: var(--color-text);
  }
}

/* ============================= */
/* Layout - Post Lists           */
/* ============================= */

/* Stream layout - spaced posts */
.post-stream-item {
  margin-bottom: 4rem;
}

/* Titles layout - compact chronological list */
.posts-titles .year-header {
  color: var(--color-text-heading);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1em;
}

.posts-titles .year-header.has-previous {
  margin-top: 2em;
}

.posts-titles .post-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.post-row time {
  color: var(--color-text-muted);
  width: 4rem;
  flex-shrink: 0;
}

.posts-titles a {
  color: var(--color-accent);
  font-weight: 500;
}

.posts-titles a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

/* Cards layout - grid of post cards */
.post-card {
  margin-bottom: 2rem;
}

.post-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.post-card-link:hover {
  text-decoration: none;
}

.post-card a {
  text-decoration: none;
}

.post-card:hover .post-card-content {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  transform: scale(1.05);
}

.post-card-content {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  cursor: pointer;
  transition: all 200ms;
}

.post-card-title {
  font-size: 1.5rem;
  line-height: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--color-accent);
}

.post-card-summary {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  word-break: break-words;
  line-height: 1.5;
}

.post-card-summary img {
  border-radius: 0.5rem;
  margin-inline: auto;
  max-width: 100%;
}

.post-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.post-card-meta.has-tags {
  margin-top: 1rem;
}

.post-card-meta.no-tags {
  margin-top: 1.5rem;
}

.post-card-date {
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--color-text-muted);
  opacity: 0.75;
}

.post-card-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: 9999px;
  border: 1px solid var(--color-border);
}

/* ============================= */
/* Layout - Forms & UI           */
/* ============================= */

button {
  border: none;
  display: flex;
  cursor: pointer;
  padding: 0;
}

.email-subscriber-form {
  display: flex;
  justify-content: center;
  font-size: 0.875em;
  margin-left: auto;
  margin-right: auto;
  margin-block: 0 var(--lexxy-content-margin);
  max-width: 450px;
}

/* Empty state messages */
.empty-state {
  text-align: center;
}

.empty-state a {
  color: var(--color-accent);
  font-weight: 500;
  text-decoration: underline;
}

/* Tag filter notice */
.tag-filter-notice {
  margin-bottom: 1.5rem;
  padding: 0.75rem;
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
}

.tag-filter-notice-text {
  color: var(--color-text);
}

.tag-filter-notice-actions {
  margin-top: 0.5rem;
}

.tag-filter-clear-link {
  color: var(--color-accent);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.tag-filter-clear-link:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

/* ============================= */
/* Typography - Utility Classes  */
/* ============================= */

/* Font family classes (applied dynamically) */
.font-sans {
   --font-body: var(--font-sans);
}

.font-serif {
   --font-body: var(--font-serif);
}

.font-mono {
  --font-body: var(--font-mono);
}

/* Font size utilities - must be standalone for use on <main> element */
.text-size-standard {
  font-size: 16px;
}

.text-size-large {
  font-size: var(--font-size-large);
}

/* ============================= */
/* Layout - Flash Messages       */
/* ============================= */

/* Note: Flash container uses .hidden class for initial display: none */

.flash-wrapper {
  position: absolute;
  width: 100%;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  justify-content: center;
  z-index: 10;
}

.flash-message {
  max-width: 300px;
  padding: 0.5rem 1rem;
  margin-inline: auto;
  border-radius: 0.375rem;
  background-color: var(--color-bg-subtle);
  box-shadow: 0 4px 6px -1px var(--color-shadow);
}

@media (min-width: 640px) {
  .flash-message {
    max-width: 400px;
  }
}

.flash-message-text {
  color: var(--color-text);
  text-align: center;
}

/* ============================= */
/* Layout - Tags                 */
/* ============================= */

.tags-container {
  display: flex;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.tag-link {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
  background-color: var(--color-bg-subtle);
  color: var(--color-text-muted);
  border-radius: 0.375rem;
  transition: background-color 200ms;
}

.tag-link:hover {
  background-color: var(--color-bg-elevated);
}

/* ============================= */
/* Layout - Confirmation Pages   */
/* ============================= */

.confirmation-page {
  margin-top: 3rem;
  max-width: 450px;
  margin-inline: auto;
  padding: 2rem;
}

.confirmation-text {
  color: var(--color-text);
}

.confirmation-link,
.confirmation-button {
  margin-top: 1rem;
}

.confirmation-link a, .confirmation-button button {
  color: var(--color-accent);
  background-color: inherit;
  font-size: inherit;
  font-weight: 500;
  text-decoration: underline;
}

.confirmation-button {
  display: flex;
  justify-content: center;
}

.confirmation-button button {
  font-family: inherit;
}

/* ============================= */
/* Layout - Form Fieldsets       */
/* ============================= */

.form-fieldset {
  display: flex;
  border: none;
}

.email-form-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-align: center;
}

.subscription-description {
  color: var(--color-text);
}

.subscription-message {
  color: var(--color-text);
  text-align: center;
  line-height: 1.5em;

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

.email-input {
  width: 12rem;
}

@media (min-width: 640px) {
  .email-input {
    width: 16rem;
  }
}

/* Generic form layout styles - shared by all forms */
.form-container {
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .form-container {
    padding: 1rem;
  }
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .form-row {
    flex-direction: row;
    gap: 1rem;
  }

  .form-row .form-field {
    flex: 1;
  }
}

.form-field label {
  display: block;
  margin-bottom: 0.25rem;
}

.form-field input,
.form-field textarea {
  display: block;
  width: 100%;
  box-sizing: border-box;
}

.form-error {
  color: #ef4444;
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* ============================= */
/* Utility - Display             */
/* ============================= */

.hidden {
  display: none;
}

.pointer-events-none {
  pointer-events: none;
}

dialog::backdrop {
  backdrop-filter: blur(2px);
}

dialog[open] {
  animation: modal-open 150ms ease-out;
}

@keyframes modal-open {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}


/* Posts list component (for custom tags in page content) */
ul.posts-list {
  list-style: none;
  padding-left: 0;
  margin-left: 0;
  margin-block: 0 var(--lexxy-content-margin);
  display: grid;
  gap: 0.25rem;
  grid-template-columns: min-content 1fr;
}

.posts-list li {
  display: grid;
  gap: 0.75rem;
  grid-column: 1 / -1;
  grid-template-columns: subgrid;
  margin: 0;
  padding: 0;
}

.posts-list a {
  font-weight: 500;
  text-decoration: none;
}

.posts-list a:hover {
  text-decoration: underline;
}

.posts-list li time {
  color: var(--color-text-muted);
  white-space: nowrap;
}

.posts-list h2 {
  margin-bottom: 0.5em;
}

.posts-list h2:not(:first-child) {
  margin-top: 1.5rem;
}

/* Tag list component */
.tag-list {
  list-style: disc;
  padding-left: 1.5em;
  margin-block: 0 var(--lexxy-content-margin);
}

.tag-list li {
  margin: 0;
  padding: 0;
}

.tag-list a {
  font-weight: 500;
  text-decoration: none;
}

.tag-list a:hover {
  text-decoration: underline;
}

/* ============================= */
/* Animations                    */
/* ============================= */

@keyframes pulseGrow {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.4);
  }
}

.animate-pulse-grow {
  animation: pulseGrow 500ms ease-in-out;
}

/* ============================= */
/* Media Embeds                  */
/* ============================= */

/* YouTube 16:9 aspect ratio container */
.video-embed-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 aspect ratio (9/16 = 0.5625) */
  margin-block: 0 var(--lexxy-content-margin);
}

.video-embed-container > * {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* GitHub gist embed */
.gist-embed-container {
  margin-block: 0 var(--lexxy-content-margin);
}

/* General iframe styling */
:where(.blog) {
  :where(iframe) {
    display: block;
    margin-block: 0 var(--lexxy-content-margin);
    max-width: 100%;
    width: 100%;
    border: none;
  }
}