/* ============================================================
   ARTICLE.CSS — Shared styling for project case studies & blog articles
   ============================================================ */

/* ---------- ARTICLE HEADER ---------- */
.article-head {
  padding: 80px 32px 40px;
  max-width: calc(1280px + 64px);
  margin: 0 auto;
}

@media (max-width: 768px) {
  .article-head {
    padding: 64px 20px 32px;
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
  }
}

.article-head .h1 {
  margin-bottom: 16px;
  max-width: 900px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 20px;
}

@media (max-width: 600px) {
  .article-meta { gap: 12px 18px; font-size: 0.68rem; }
}

/* ---------- ARTICLE HERO IMAGE ---------- */
.article-hero {
  width: auto;
  max-width: 1280px;
  margin: 32px auto 56px;
  padding: 0 32px;
}

@media (max-width: 768px) {
  .article-hero {
    margin: 24px auto 40px;
    padding: 0 20px;
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
  }
}

.article-hero img {
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-subtle);
}

@media (max-width: 600px) {
  .article-hero img { aspect-ratio: 16 / 10; }
}

.project-detail-hero img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.project-detail-hero .project-placeholder {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

/* ---------- ARTICLE BODY ---------- */
.article-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 32px 64px;
}

@media (max-width: 768px) {
  .article-body {
    padding: 0 20px 48px;
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
  }
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 48px 0 16px;
  line-height: 1.25;
}

@media (max-width: 600px) {
  .article-body h2 { font-size: 1.25rem; margin: 36px 0 14px; }
}

.article-body h3 {
  font-size: 1.15rem;
  font-weight: 550;
  margin: 32px 0 12px;
}

.article-body p {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 20px;
}

@media (max-width: 600px) {
  .article-body p { font-size: 0.94rem; line-height: 1.75; }
}

.article-body ul,
.article-body ol {
  margin: 16px 0 24px 24px;
  color: var(--text-2);
  line-height: 1.8;
  font-size: 0.98rem;
}

.article-body li { margin-bottom: 8px; }

.article-body strong { color: var(--text); font-weight: 600; }

.article-body a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.article-body a:hover {
  color: var(--accent-hover);
}

/* ---------- CODE BLOCKS ---------- */
.article-body code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 6px;
  color: var(--accent);
  word-break: break-word;
}

.article-body pre {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
  max-width: 100%;
}

@media (max-width: 600px) {
  .article-body pre { padding: 16px; margin: 20px 0; }
}

.article-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
  font-size: 0.82rem;
  line-height: 1.6;
  white-space: pre;
}

@media (max-width: 600px) {
  .article-body pre code { font-size: 0.76rem; }
}

/* ---------- BLOCKQUOTE ---------- */
.article-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 4px 0 4px 20px;
  margin: 24px 0;
  font-style: italic;
  color: var(--text-2);
}

.project-question-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 4px 0 8px;
}

.project-answer {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  min-width: 64px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  transition: background-color 0.2s, border-color 0.2s, transform 0.2s, gap 0.2s;
}

.project-answer-mark {
  display: inline-block;
  width: 0;
  overflow: hidden;
  opacity: 0;
  transform: scale(0.5);
  transition: width 0.2s, opacity 0.2s, margin 0.2s;
}

.project-answer[aria-pressed="true"] {
  gap: 6px;
}

.project-answer[aria-pressed="true"] .project-answer-mark {
  width: 12px;
  opacity: 1;
  transform: scale(1);
  animation: project-answer-mark-pop 0.24s ease-out;
}

@keyframes project-answer-mark-pop {
  0% { transform: scale(0.5) rotate(-20deg); }
  70% { transform: scale(1.2) rotate(4deg); }
  100% { transform: scale(1) rotate(0); }
}

.project-answer:hover {
  transform: translateY(-1px);
}

.project-answer:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

.project-answer-yes {
  color: #286b45;
  background: rgba(62, 153, 99, 0.12);
  border-color: rgba(62, 153, 99, 0.2);
}

.project-answer-yes:hover,
.project-answer-yes[aria-pressed="true"] {
  background: rgba(62, 153, 99, 0.2);
  border-color: rgba(62, 153, 99, 0.42);
}

.project-answer-no {
  color: #9a4545;
  background: rgba(190, 75, 75, 0.1);
  border-color: rgba(190, 75, 75, 0.18);
}

.project-answer-no:hover,
.project-answer-no[aria-pressed="true"] {
  background: rgba(190, 75, 75, 0.18);
  border-color: rgba(190, 75, 75, 0.38);
}

[data-theme="dark"] .project-answer-yes {
  color: #a4ddb5;
  background: rgba(84, 173, 117, 0.16);
  border-color: rgba(120, 194, 146, 0.24);
}

[data-theme="dark"] .project-answer-yes:hover,
[data-theme="dark"] .project-answer-yes[aria-pressed="true"] {
  background: rgba(84, 173, 117, 0.25);
  border-color: rgba(120, 194, 146, 0.48);
}

[data-theme="dark"] .project-answer-no {
  color: #f0aaaa;
  background: rgba(201, 88, 88, 0.15);
  border-color: rgba(220, 121, 121, 0.24);
}

[data-theme="dark"] .project-answer-no:hover,
[data-theme="dark"] .project-answer-no[aria-pressed="true"] {
  background: rgba(201, 88, 88, 0.24);
  border-color: rgba(220, 121, 121, 0.46);
}

.article-body a.project-visit-link {
  color: var(--bg);
  text-decoration: none;
}

@media (prefers-reduced-motion: reduce) {
  .project-answer,
  .project-answer-mark {
    transition: none;
    animation: none;
  }
}

/* ---------- CALLOUT ---------- */
.article-body .callout {
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin: 28px 0;
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.7;
}

@media (max-width: 600px) {
  .article-body .callout { padding: 16px 18px; margin: 24px 0; font-size: 0.88rem; }
}

.article-body .callout strong { color: var(--text); }

/* ---------- IMAGES INSIDE BODY ---------- */
.article-body img {
  border-radius: var(--radius-sm);
  margin: 24px 0;
  border: 1px solid var(--border);
}

/* ---------- ARTICLE NAVIGATION ---------- */
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 32px 32px;
  border-top: 1px solid var(--border);
  max-width: calc(760px + 64px);
  margin: 0 auto;
  flex-wrap: wrap;
}

@media (max-width: 600px) {
  .article-nav {
    padding: 24px 20px;
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
    gap: 12px;
    font-size: 0.82rem;
  }
}

.article-nav a {
  font-size: 0.85rem;
  color: var(--text-2);
  font-weight: 500;
  transition: color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-nav a:hover { color: var(--accent); }