@import "tailwindcss";
@import "./generated/highlight.css";

@custom-variant dark (&:where(.dark, .dark *));

@theme {
  /* PaperMod Light Theme */
  --color-paper-theme: #ffffff;
  --color-paper-entry: #ffffff;
  --color-paper-primary: #1e1e1e;
  --color-paper-secondary: #6c6c6c;
  --color-paper-tertiary: #d6d6d6;
  --color-paper-content: #1f1f1f;
  --color-paper-code-block: #1c1d21;
  --color-paper-code-bg: #f5f5f5;
  --color-paper-border: #eeeeee;
  
  /* PaperMod sizing */
  --radius-paper: 8px;
  --gap-paper: 24px;
  --content-gap-paper: 20px;
  --nav-width-paper: 1024px;
  --main-width-paper: 720px;
}

@theme dark {
  /* PaperMod Dark Theme */
  --color-paper-theme: #1d1e20;
  --color-paper-entry: #2e2e33;
  --color-paper-primary: #dadadb;
  --color-paper-secondary: #9b9c9d;
  --color-paper-tertiary: #414244;
  --color-paper-content: #c4c4c5;
  --color-paper-code-block: #2e2e33;
  --color-paper-code-bg: #37383e;
  --color-paper-border: #333333;
}

@layer base {
  html {
    scroll-behavior: smooth;
  }
  
  body {
    background-color: var(--color-paper-theme);
    color: var(--color-paper-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
  }
}

@layer components {
  /* Post Single Layout */
  .post-single {
    margin: 0 auto;
  }

  /* Post Header */
  .post-header {
    margin: 24px auto var(--content-gap-paper) auto;
  }

  .post-title {
    font-size: 40px;
    line-height: 1.2;
    color: var(--color-paper-primary);
    word-break: break-word;
  }

  .post-description {
    margin-top: 10px;
    color: var(--color-paper-secondary);
    font-size: 16px;
  }

  .post-meta {
    margin-top: 5px;
    color: var(--color-paper-secondary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
  }

  .post-meta a {
    color: var(--color-paper-secondary);
    text-decoration-style: dotted;
    text-underline-offset: 0.3rem;
    text-decoration: underline;
  }

  .post-meta a:hover {
    color: var(--color-paper-primary);
  }

  /* Breadcrumbs */
  .breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.2rem;
    color: var(--color-paper-secondary);
    font-size: 14px;
    margin-bottom: 10px;
  }

  .breadcrumbs a {
    font-size: 16px;
    color: var(--color-paper-primary);
  }

  .breadcrumbs a:hover {
    text-decoration: underline;
    text-underline-offset: 0.2rem;
  }

  /* Draft Badge */
  .entry-hint {
    display: inline-flex;
    margin-left: 0.5rem;
    color: var(--color-paper-secondary);
  }

  /* TOC */
  details.toc {
    margin-bottom: var(--content-gap-paper);
    background: var(--color-paper-code-bg);
    border-radius: var(--radius-paper);
    border: 1px solid var(--color-paper-border);
  }

  details.toc summary {
    padding: 0.3rem 1.2rem;
    border-radius: var(--radius-paper);
    cursor: pointer;
    display: list-item;
    width: 100%;
    user-select: none;
    color: var(--color-paper-primary);
  }

  details.toc .title {
    display: inline;
    font-weight: 500;
    margin-inline-start: 0.2rem;
  }

  details.toc .inner {
    margin: 0 2.4rem;
    padding-bottom: 0.6rem;
  }

  details.toc ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  details.toc li {
    margin: 0.3rem 0;
  }

  details.toc a {
    color: var(--color-paper-secondary);
    text-decoration: none;
    font-size: 14px;
  }

  details.toc a:hover {
    color: var(--color-paper-primary);
    text-decoration: underline;
    text-underline-offset: 0.3rem;
  }

  details.toc li ul {
    margin-inline-start: var(--gap-paper);
  }

  /* TOC Animation */
  details {
    interpolate-size: allow-keywords;
  }

  details::details-content {
    height: 0;
    opacity: 0;
    overflow: clip;
    transition: height 150ms ease, opacity 150ms ease, content-visibility 150ms allow-discrete;
  }

  details[open]::details-content {
    height: auto;
    opacity: 1;
  }

  /* Entry Cover */
  .entry-cover {
    margin-bottom: var(--content-gap-paper);
  }

  .entry-cover img {
    border-radius: var(--radius-paper);
    width: 100%;
    height: auto;
  }

  /* Post Content */
  .post-content {
    color: var(--color-paper-content);
    margin: 30px 0;
  }

  /* Markdown Content */
  .md-content h1 {
    margin: 40px auto 32px;
    font-size: 40px;
    color: var(--color-paper-primary);
  }

  .md-content h2 {
    margin: 32px auto 24px;
    font-size: 32px;
    color: var(--color-paper-primary);
  }

  .md-content h3 {
    margin: 24px 0 16px;
    font-size: 24px;
    color: var(--color-paper-primary);
  }

  .md-content h4 {
    margin: 24px 0 16px;
    font-size: 16px;
    color: var(--color-paper-primary);
  }

  .md-content h5 {
    margin: 24px 0 16px;
    font-size: 14px;
    color: var(--color-paper-primary);
  }

  .md-content h6 {
    margin: 24px 0 16px;
    font-size: 12px;
    color: var(--color-paper-primary);
  }

  .md-content a:not(.anchor) {
    text-underline-offset: 0.3rem;
    text-decoration: underline;
    color: var(--color-paper-primary);
  }

  .md-content a:not(.anchor):hover {
    color: var(--color-paper-secondary);
  }

  .md-content p {
    margin-bottom: var(--content-gap-paper);
    line-height: 1.8;
  }

  .md-content p:last-child {
    margin-bottom: 0;
  }

  .md-content blockquote {
    margin: 1rem 0;
    padding-inline-start: 1rem;
    border-inline-start: 0.3rem solid var(--color-paper-content);
    color: var(--color-paper-secondary);
  }

  .md-content blockquote p:last-child {
    margin-bottom: 0;
  }

  .md-content ol,
  .md-content ul {
    padding-inline-start: 1.25rem;
    margin-bottom: var(--content-gap-paper);
  }

  .md-content li {
    margin-top: 0.3rem;
  }

  .md-content li p {
    margin-bottom: 0;
  }

  .md-content hr {
    margin: 30px 0;
    height: 2px;
    background: var(--color-paper-tertiary);
    border: 0;
  }

  .md-content table {
    margin-bottom: var(--content-gap-paper);
    width: 100%;
    border-collapse: collapse;
  }

  .md-content table th,
  .md-content table td {
    min-width: 80px;
    padding: 6px 13px;
    line-height: 1.5;
    border: 1px solid var(--color-paper-border);
  }

  .md-content table th {
    text-align: start;
    font-weight: 600;
    background: var(--color-paper-code-bg);
  }

  .md-content img {
    border-radius: var(--radius-paper);
    margin: 1rem 0;
    max-width: 100%;
    height: auto;
  }

  .md-content iframe {
    max-width: 100%;
    border-radius: var(--radius-paper);
  }

  /* Code Blocks */
  .md-content code {
    padding: 0.2rem 0.3rem;
    font-size: 0.85em;
    line-height: 1.5;
    background: var(--color-paper-code-bg);
    border-radius: 0.2rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  }

  .md-content pre {
    position: relative;
    margin-bottom: var(--content-gap-paper);
    border-radius: var(--radius-paper);
    overflow-x: auto;
  }

  .md-content pre code {
    display: block;
    padding: 16px;
    background: transparent;
    border-radius: 0;
    overflow-x: auto;
    word-break: break-all;
    font-size: 0.85em;
    line-height: 1.6;
  }

  /* Copy Code Button */
  .copy-code {
    display: none;
    position: absolute;
    top: 8px;
    right: 8px;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(78, 78, 78, 0.8);
    border-radius: var(--radius-paper);
    padding: 4px 8px;
    font-size: 12px;
    user-select: none;
    cursor: pointer;
    border: none;
    font-family: inherit;
    transition: background 0.2s ease;
  }

  .copy-code:hover {
    background: rgba(100, 100, 100, 0.9);
  }

  pre:hover .copy-code,
  .highlight:hover .copy-code {
    display: block;
  }

  /* Heading Anchors */
  .anchor {
    display: none;
    text-decoration: none;
    color: var(--color-paper-secondary);
  }

  .md-content h1:hover .anchor,
  .md-content h2:hover .anchor,
  .md-content h3:hover .anchor,
  .md-content h4:hover .anchor,
  .md-content h5:hover .anchor,
  .md-content h6:hover .anchor {
    display: inline-flex;
    margin-inline-start: 0.5em;
    font-weight: 500;
    user-select: none;
    text-decoration: none;
    color: var(--color-paper-secondary);
  }

  .anchor:hover {
    color: var(--color-paper-primary) !important;
  }

  /* Post Footer */
  .post-footer {
    margin-top: var(--content-gap-paper);
  }

  /* Tags */
  .post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    padding: 0;
    margin: 0 0 var(--content-gap-paper) 0;
  }

  .post-tags li {
    display: inline-block;
  }

  .post-tags a {
    display: block;
    padding: 0 14px;
    color: var(--color-paper-secondary);
    font-size: 14px;
    line-height: 34px;
    background: var(--color-paper-code-bg);
    border-radius: var(--radius-paper);
    border: 1px solid var(--color-paper-border);
    text-decoration: none;
    transition: background 0.2s ease;
  }

  .post-tags a:hover {
    background: var(--color-paper-border);
    color: var(--color-paper-primary);
  }

  /* Post Navigation */
  .paginav {
    display: flex;
    border-radius: var(--radius-paper);
    background: var(--color-paper-code-bg);
    border: 1px solid var(--color-paper-border);
    overflow: hidden;
  }

  .paginav a {
    width: 50%;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0.8rem;
    text-decoration: none;
    color: var(--color-paper-primary);
    transition: background 0.2s ease;
  }

  .paginav a:hover {
    background: var(--color-paper-border);
  }

  .paginav .next {
    margin-inline-start: auto;
    text-align: right;
  }

  .paginav .title {
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.8rem;
    color: var(--color-paper-secondary);
  }

  .paginav .post-title-nav {
    font-size: 16px;
    font-weight: 500;
  }

  /* Back to Home */
  .back-to-home {
    margin-top: calc(var(--content-gap-paper) * 1.5);
    padding-top: var(--content-gap-paper);
    border-top: 1px solid var(--color-paper-border);
  }

  .back-to-home a,
  .back-to-home button {
    color: var(--color-paper-secondary);
    font-size: 14px;
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    font-family: inherit;
  }

  .back-to-home a:hover,
  .back-to-home button:hover {
    color: var(--color-paper-primary);
    text-decoration: underline;
    text-underline-offset: 0.3rem;
  }
}

/* Responsive */
@media screen and (max-width: 768px) {
  .post-title {
    font-size: 32px;
  }

  .md-content h1 {
    font-size: 32px;
  }

  .md-content h2 {
    font-size: 26px;
  }

  .md-content h3 {
    font-size: 20px;
  }

  .paginav {
    flex-direction: column;
  }

  .paginav a {
    width: 100%;
  }

  .paginav .next {
    margin-inline-start: 0;
    text-align: left;
    border-top: 1px solid var(--color-paper-border);
  }

  details.toc .inner {
    margin: 0 1rem;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  details::details-content {
    transition: none;
  }
}