/* Casper-inspired Theme for Blogku */
:root {
  --color-darkgrey: #15171A;
  --color-midgrey: #738a94;
  --color-lightgrey: #f1f1f1;
  --color-secondary-text: #979797;
  --color-border: #e1e1e1;
  --color-wash: #e5eff5;
  --color-bg: #ffffff;
  --color-card-bg: #ffffff;
  --ghost-accent-color: #c45d3e;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
  --font-serif: Georgia, Times, serif;
  --font-mono: Menlo, Courier, monospace;
}

[data-theme="dark"] {
  --color-darkgrey: #ffffff;
  --color-midgrey: #a89d91;
  --color-lightgrey: #2e2822;
  --color-secondary-text: #857a70;
  --color-border: #302a24;
  --color-wash: #1a1714;
  --color-bg: #151719;
  --color-card-bg: #1a1c1f;
}

/* Reset & Basics */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 62.5%; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); }
body {
  color: var(--color-darkgrey);
  background: var(--color-bg);
  font-family: var(--font-sans);
  font-size: 1.6rem;
  line-height: 1.6em;
  font-weight: 400;
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-darkgrey); text-decoration: none; transition: opacity 0.2s ease; }
a:hover { opacity: 0.8; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--color-darkgrey);
  margin-top: 0;
  line-height: 1.15;
}

/* Layout */
.viewport { display: flex; flex-direction: column; min-height: 100vh; }
.site-main { flex-grow: 1; }
.outer { padding: 0 max(4vmin, 20px); position: relative; }
.inner { margin: 0 auto; max-width: 1200px; width: 100%; }

/* Header & Nav */
.site-header { padding: 24px 0; border-bottom: 1px solid var(--color-border); }
.site-nav { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.site-nav-left { display: flex; align-items: center; gap: 32px; }
.site-nav-logo { font-size: 2.2rem; font-weight: 800; letter-spacing: -0.02em; }
.site-nav-logo:hover { opacity: 1; }
.nav { display: flex; list-style: none; margin: 0; padding: 0; gap: 24px; align-items: center; font-weight: 500; font-size: 1.5rem; flex-wrap: wrap; }
.nav a { color: var(--color-darkgrey); }

.site-nav-right { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.theme-toggle, .hamburger { background: none; border: none; cursor: pointer; color: var(--color-darkgrey); display: inline-flex; align-items: center; justify-content: center; padding: 8px; }
.theme-icon { display: none; }
[data-mode="light"] .theme-icon.sun { display: block; }
[data-mode="dark"] .theme-icon.moon { display: block; }
[data-mode="auto"] .theme-icon.auto { display: block; }

/* Skip Link */
.skip-link { position: absolute; top: -100px; left: 0; background: var(--ghost-accent-color); color: #fff; padding: 12px; z-index: 100; transition: top 0.2s; }
.skip-link:focus { top: 0; }

/* Post Feed & Cards */
.post-feed { display: grid; gap: 4.8vmin 4vmin; grid-template-columns: repeat(6, minmax(0, 1fr)); padding: max(4.8vmin, 36px) 0 40px; }
@media (max-width: 991px) { .post-feed { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 767px) { .post-feed { grid-template-columns: minmax(0, 1fr); gap: 40px; } }

.post-card { grid-column: span 2; display: flex; flex-direction: column; background: var(--color-card-bg); word-break: break-word; min-width: 0; }
.post-card.long { grid-column: span 3; } 
@media (max-width: 991px) { .post-card.long { grid-column: span 2; } }
@media (max-width: 767px) { .post-card.long { grid-column: span 1; } }

.post-card-image-link { display: block; overflow: hidden; margin-bottom: 24px; border-radius: 3px; position: relative; }
.post-card-image-link img { width: 100%; aspect-ratio: 16/9; object-fit: cover; background: var(--color-wash); }
.post-card-content { flex-grow: 1; display: flex; flex-direction: column; }
.post-card-meta { display: flex; align-items: center; gap: 8px; font-size: 1.3rem; color: var(--color-secondary-text); margin-bottom: 8px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.02em; }
.post-type-badge { color: var(--ghost-accent-color); }
.post-card-title { font-size: 2.4rem; font-weight: 800; margin: 0 0 12px; line-height: 1.25; }
.post-card-excerpt { font-size: 1.6rem; line-height: 1.5; color: var(--color-midgrey); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* Single Article */
.article { word-break: break-word; padding: max(6vmin, 40px) 0; }
.article-header { padding: 0 0 max(4.8vmin, 32px); text-align: center; max-width: 800px; margin: 0 auto; }
.article-meta { color: var(--color-secondary-text); font-size: 1.4rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.02em; margin-bottom: 16px; display: block; }
.article-title { font-size: clamp(3.2rem, 5vw, 5.2rem); font-weight: 800; line-height: 1.1; margin-bottom: 24px; }
.article-image { margin: 0 0 max(6.4vmin, 40px); border-radius: 3px; overflow: hidden; }
.article-image img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }

/* Canvas (Prose Content) */
.gh-canvas {
  display: grid;
  grid-template-columns: 
    [full-start] minmax(max(4vmin, 20px), 1fr) 
    [main-start] min(720px, 100% - max(8vmin, 40px)) [main-end] 
    minmax(max(4vmin, 20px), 1fr) [full-end];
}
.gh-canvas > * { grid-column: main-start / main-end; }
.gh-canvas > img, .gh-canvas > iframe { grid-column: full-start / full-end; width: 100%; border-radius: 3px; margin: 3.2vmin 0; }

.gh-content { font-family: var(--font-serif); font-size: 2rem; line-height: 1.6em; font-weight: 400; color: var(--color-darkgrey); }
.gh-content p, .gh-content ul, .gh-content ol { margin-bottom: 1.5em; }
.gh-content h2, .gh-content h3, .gh-content h4 { font-family: var(--font-sans); margin: 1.5em 0 0.5em; }
.gh-content a { color: var(--ghost-accent-color); text-decoration: underline; }
.gh-content blockquote { border-left: 3px solid var(--ghost-accent-color); margin: 1.5em 0; padding: 0 1.6em; font-style: italic; }
.gh-content pre { background: #15171A; color: #fff; padding: 20px; border-radius: 5px; overflow-x: auto; font-size: 1.4rem; font-family: var(--font-mono); margin-bottom: 1.5em; position: relative; }
[data-theme="dark"] .gh-content pre { background: #25282c; }
.gh-content pre code { background: transparent; padding: 0; color: inherit; font-size: inherit; border-radius: 0; }
.gh-content code { font-family: var(--font-mono); background: var(--color-wash); padding: 2px 5px; border-radius: 3px; font-size: 0.9em; }
.gh-content hr { border: 0; border-top: 1px solid var(--color-border); margin: 3em 0; }

/* Code Block Copy Button */
.copy-btn {
  position: absolute; top: 10px; right: 10px;
  background: rgba(255, 255, 255, 0.1); color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2); border-radius: 4px;
  padding: 4px 8px; font-size: 1.2rem; font-family: var(--font-sans);
  cursor: pointer; opacity: 0; transition: all 0.2s ease;
}
.gh-content pre:hover .copy-btn { opacity: 1; }
.copy-btn:hover { background: rgba(255, 255, 255, 0.2); }
.copy-btn.copied { background: #10b981; border-color: #10b981; color: #fff; opacity: 1; }

/* Tables */
.gh-content table { width: 100%; max-width: 100%; border-collapse: collapse; margin-bottom: 1.5em; font-family: var(--font-sans); font-size: 1.6rem; display: block; overflow-x: auto; }
.gh-content th, .gh-content td { padding: 12px 16px; border: 1px solid var(--color-border); }
.gh-content th { background-color: var(--color-wash); font-weight: 700; text-align: left; }
.gh-content tr:nth-child(even) { background-color: rgba(0,0,0,0.02); }
[data-theme="dark"] .gh-content tr:nth-child(even) { background-color: rgba(255,255,255,0.02); }

/* Micro Posts Override */
.post-card.micro .post-card-excerpt { font-family: var(--font-serif); font-size: 1.8rem; -webkit-line-clamp: unset; }

/* Buttons & Inputs */
.btn {
  display: inline-flex; justify-content: center; align-items: center;
  padding: 10px 20px; font-size: 1.5rem; font-weight: 600; border-radius: 48px;
  background: var(--color-bg); color: var(--color-darkgrey); border: 1px solid var(--color-border);
  transition: all 0.2s ease; cursor: pointer; text-decoration: none; line-height: 1;
}
.btn:hover { border-color: var(--color-midgrey); text-decoration: none; opacity: 1; }
.btn-primary { background: var(--ghost-accent-color); color: #fff; border-color: var(--ghost-accent-color); }
.btn-primary:hover { opacity: 0.9; border-color: var(--ghost-accent-color); }
.link-btn { background: none; border: none; font-size: 1.4rem; color: var(--color-secondary-text); cursor: pointer; text-decoration: underline; padding: 4px 8px; }
.link-btn:hover { color: var(--color-darkgrey); }

input[type="text"], input[type="password"], input[type="url"], input[type="number"], select, textarea {
  width: 100%; padding: 12px 16px; font-family: var(--font-sans); font-size: 1.6rem;
  border: 1px solid var(--color-border); border-radius: 5px; background: var(--color-bg); color: var(--color-darkgrey);
  transition: border-color 0.2s;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--ghost-accent-color); }
label { display: block; font-weight: 600; font-size: 1.4rem; margin-bottom: 8px; color: var(--color-darkgrey); }
.field { margin-bottom: 24px; }
.form-actions { display: flex; gap: 12px; margin-top: 32px; }

/* Dashboard / Admin */
.admin-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; margin-bottom: 40px; padding-top: 40px; }
.post-list { display: flex; flex-direction: column; }
.post-row { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--color-border); gap: 16px; flex-wrap: wrap; }
.post-row-info { flex-grow: 1; display: flex; align-items: center; gap: 12px; }
.post-row-title { font-weight: 700; font-size: 1.6rem; }
.post-row-date { color: var(--color-secondary-text); font-size: 1.3rem; }
.post-row-actions { display: flex; gap: 8px; }

/* Footer */
.site-footer { padding: 40px 0; background: #15171A; color: rgba(255,255,255,0.7); font-size: 1.4rem; }
.site-footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 24px; }
.site-footer a { color: rgba(255,255,255,0.7); font-weight: 500; }
.site-footer a:hover { color: #ffffff; }

/* Misc Utilities */
.flash { padding: 12px 16px; border-radius: 5px; margin-bottom: 24px; font-weight: 500; font-size: 1.4rem; }
.flash.error { background: #fee2e2; color: #991b1b; border: 1px solid #f87171; }
.flash.success { background: #dcfce7; color: #166534; border: 1px solid #4ade80; }
[data-theme="dark"] .flash.error { background: rgba(153, 27, 27, 0.2); color: #fca5a5; border-color: #7f1d1d; }
[data-theme="dark"] .flash.success { background: rgba(22, 101, 52, 0.2); color: #86efac; border-color: #14532d; }
.empty-state { padding: 60px 0; text-align: center; color: var(--color-secondary-text); font-size: 1.8rem; }
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; }
.status-dot.published { background: #10b981; }
.status-dot.draft { background: #f59e0b; }