*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #1e1e1e;
  --fg: #f5f5f0;
  --dim: rgba(245, 245, 240, 0.38);
  --dash: 1px dashed rgba(245, 245, 240, 0.28);
  --mono: "IBM Plex Mono", "Inconsolata", "Courier New", monospace;
}

html {
  font-size: 21px;
}

body {
  font-family: var(--mono);
  background-color: var(--bg);
  color: var(--fg);
  padding: 44px 52px 120px;
  min-height: 100vh;
  line-height: 1.6;
  margin: 0 auto;
}

a {
  color: var(--fg);
}
a:hover {
  opacity: 0.6;
}

.return {
  display: inline-block;
  margin-bottom: 40px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  opacity: 0.5;
  text-decoration: none;
  transition: opacity 0.12s;
}
.return::before {
  content: "← ";
}
.return:hover {
  opacity: 1;
}

.site-header {
  margin-bottom: 52px;
}
.site-header a {
  text-decoration: none;
}

h1 {
  font-size: 1.1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 2px;
}
h2 {
  font-size: 0.82rem;
  font-weight: normal;
  opacity: 0.42;
  letter-spacing: 0.06em;
  margin-bottom: 36px;
}
h3 {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.38;
  font-weight: normal;
  border-bottom: var(--dash);
  padding-bottom: 4px;
  margin: 32px 0 14px;
}

.post-list {
  display: flex;
  flex-direction: column;
}

.post-entry {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 0 20px;
  padding: 12px 0;
  border-bottom: var(--dash);
  text-decoration: none;
  color: var(--fg);
  transition: opacity 0.12s;
  align-items: baseline;
}
.post-entry:first-child {
  border-top: var(--dash);
}
.post-entry:hover {
  opacity: 0.55;
}

.post-entry .date {
  font-size: 0.72rem;
  opacity: 0.4;
  white-space: nowrap;
}
.post-entry .title {
  font-size: 0.96rem;
}
.post-entry .tags {
  grid-column: 2;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 3px;
}

.tag {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.4;
  border: var(--dash);
  padding: 1px 5px;
}

.empty {
  font-size: 0.85rem;
  opacity: 0.4;
  padding: 20px 0;
  border-top: var(--dash);
  border-bottom: var(--dash);
}

.post-meta {
  font-size: 0.72rem;
  opacity: 0.4;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.post-title {
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.3;
  font-weight: normal;
  margin-bottom: 10px;
}
.post-tags {
  margin-top: 10px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.post-body {
  font-size: 0.92rem;
  line-height: 1.75;
  margin-top: 32px;
}
.post-body p {
  margin-bottom: 1.2em;
}
.post-body h1,
.post-body h2,
.post-body h3 {
  margin: 2em 0 0.6em;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.78rem;
  opacity: 0.55;
  font-weight: normal;
  border-bottom: var(--dash);
  padding-bottom: 4px;
}
.post-body ul,
.post-body ol {
  padding-left: 1.4em;
  margin-bottom: 1.2em;
}
.post-body li {
  margin-bottom: 0.3em;
}
.post-body blockquote {
  border-left: 2px solid var(--fg);
  padding-left: 16px;
  opacity: 0.55;
  margin: 1.4em 0;
  font-style: italic;
}
.post-body code {
  background: rgba(0, 0, 0, 0.06);
  padding: 1px 4px;
  font-family: var(--mono);
  font-size: 0.88em;
}
.post-body pre {
  background: rgba(0, 0, 0, 0.06);
  padding: 14px 16px;
  overflow-x: auto;
  margin-bottom: 1.4em;
}
.post-body pre code {
  background: none;
  padding: 0;
}
.post-body a {
  border-bottom: 1px solid currentColor;
  text-decoration: none;
}
.post-body a:hover {
  border-bottom-style: dashed;
  opacity: 1;
}
.post-body strong {
  font-weight: 600;
}
.post-body hr {
  border: none;
  border-top: var(--dash);
  margin: 2em 0;
}

.post-body img {
  max-width: 50%;
  height: auto;
  display: block;
  margin: 1.6em 0;
  opacity: 0.92;
  cursor: zoom-in;
  transition: opacity 0.15s;
}
.post-body img:hover {
  opacity: 1;
}

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.lightbox.open {
  display: flex;
}
.lightbox img {
  max-width: 92vw;
  max-height: 90vh;
  object-fit: contain;
  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.6);
}
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 28px;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  font-family: var(--mono);
}
.lightbox-close:hover {
  color: #fff;
}

.edit-link {
  display: inline-block;
  margin-top: 48px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  opacity: 0.35;
  text-decoration: none;
  border-bottom: var(--dash);
  transition: opacity 0.12s;
}
.edit-link:hover {
  opacity: 0.8;
}

.admin-login {
  max-width: 360px;
  margin-top: 60px;
}
.admin-login .error {
  font-size: 0.8rem;
  opacity: 0.6;
  margin-bottom: 14px;
  color: #b00;
}

.admin-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 32px;
}

.admin-post-list {
  display: flex;
  flex-direction: column;
}
.admin-post-row {
  display: grid;
  grid-template-columns: 110px 1fr auto auto;
  gap: 0 16px;
  padding: 10px 0;
  border-bottom: var(--dash);
  align-items: baseline;
  font-size: 0.88rem;
}
.admin-post-row:first-child {
  border-top: var(--dash);
}
.admin-post-row .date {
  font-size: 0.7rem;
  opacity: 0.38;
}
.admin-post-row a.title-link {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.admin-post-row a.title-link:hover {
  border-bottom-color: currentColor;
  opacity: 1;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 18px;
}
.form-field label {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.45;
}
.form-field input,
.form-field textarea {
  font-family: var(--mono);
  font-size: 0.9rem;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(17, 17, 17, 0.3);
  color: var(--fg);
  padding: 6px 0;
  outline: none;
  width: 100%;
  transition: border-color 0.12s;
}
.form-field input:focus,
.form-field textarea:focus {
  border-bottom-color: var(--fg);
}
.form-field textarea {
  resize: vertical;
  min-height: 420px;
  border: 1px solid rgba(17, 17, 17, 0.18);
  padding: 12px;
  line-height: 1.65;
}
.form-field textarea:focus {
  border-color: var(--fg);
}
.form-hint {
  font-size: 0.68rem;
  opacity: 0.35;
  margin-top: 2px;
}

.upload-section {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: var(--dash);
}
.upload-section-label {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.45;
  margin-bottom: 10px;
}
.upload-drop {
  border: var(--dash);
  padding: 14px 16px;
  font-size: 0.78rem;
  opacity: 0.5;
  cursor: pointer;
  position: relative;
  transition:
    opacity 0.12s,
    border-color 0.12s;
  text-align: center;
  letter-spacing: 0.04em;
}
.upload-drop:hover,
.upload-drop.dragover {
  opacity: 1;
  border-color: rgba(17, 17, 17, 0.7);
}
.upload-drop input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.upload-status {
  font-size: 0.72rem;
  opacity: 0.55;
  margin-top: 8px;
  min-height: 1.2em;
}
.upload-status.err {
  color: #b00;
  opacity: 1;
}

.image-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.image-thumb {
  position: relative;
  width: 80px;
  height: 80px;
  overflow: hidden;
  border: var(--dash);
  cursor: pointer;
  transition: opacity 0.12s;
  flex-shrink: 0;
}
.image-thumb:hover {
  opacity: 0.75;
}
.image-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.image-thumb-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(245, 245, 240, 0.9);
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  padding: 2px 0;
  opacity: 0;
  transition: opacity 0.1s;
}
.image-thumb:hover .image-thumb-label {
  opacity: 1;
}

.btn {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--fg);
  background: transparent;
  color: var(--fg);
  padding: 7px 18px;
  cursor: pointer;
  transition:
    background 0.12s,
    color 0.12s;
  text-decoration: none;
  display: inline-block;
}
.btn:hover {
  background: var(--fg);
  color: var(--bg);
  opacity: 1;
}
.btn--ghost {
  border-color: rgba(17, 17, 17, 0.3);
}
.btn--ghost:hover {
  background: rgba(17, 17, 17, 0.08);
  color: var(--fg);
}
.btn--danger {
  border-color: #b00;
  color: #b00;
}
.btn--danger:hover {
  background: #b00;
  color: #fff;
}

.btn-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 8px;
  flex-wrap: wrap;
}

.editor-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 40px;
  max-width: 1100px;
}
.editor-preview {
  border-left: var(--dash);
  padding-left: 40px;
  font-size: 0.9rem;
  max-height: 80vh;
  overflow-y: auto;
}
.preview-label {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.35;
  margin-bottom: 14px;
}

.not-found {
  padding-top: 60px;
  opacity: 0.45;
  font-size: 0.9rem;
}

@media (max-width: 700px) {
  body {
    padding: 28px 22px 80px;
  }
  .post-entry {
    grid-template-columns: 1fr;
    gap: 2px;
  }
  .post-entry .tags {
    grid-column: 1;
  }
  .admin-post-row {
    grid-template-columns: 1fr auto;
  }
  .admin-post-row .date {
    display: none;
  }
  .editor-layout {
    grid-template-columns: 1fr;
  }
  .editor-preview {
    display: none;
  }
}