/* ========================================
   PLACEPLATE — BLOG ARTICLE PAGE
   Extends blog/style.css design system
   ======================================== */

/* 1. RESET & BASE */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: "Onest", Helvetica, Arial, sans-serif;
  background-color: #f9f9f9;
  color: #003e41;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }

/* 2. SKIP NAV */
.skip-nav {
  position: absolute; top: -100%; left: 0;
  padding: 10px 20px; background: #00adb5; color: #ffffff;
  z-index: 10000; border-radius: 0 0 8px 0;
  transition: top 0.2s ease; font-size: 14px; font-weight: 600;
}
.skip-nav:focus { top: 0; }

/* 3. LAYOUT */
.page-container { width: 100%; min-height: 100vh; background: #f9f9f9; }

.container {
  width: 90%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 80px 0;
}

/* 4. TYPOGRAPHY */
.text-primary { color: #003e41; }
.text-accent  { color: #00ced7; }

.section-eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 700;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: #00adb5; margin-bottom: 12px;
}

/* 5. BUTTONS */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 20px; min-height: 44px;
  background-color: #ffffff; color: #00adb5;
  font-size: 14px; font-weight: 600; border-radius: 10px;
  transition: all 0.3s ease;
}
.btn-primary-menu {
  display: none; align-items: center; justify-content: center;
  padding: 14px 20px; min-height: 44px;
  background-color: #ffffff; color: #00adb5;
  font-size: 14px; font-weight: 600; border-radius: 10px;
  transition: all 0.3s ease;
}
@media (max-width: 800px) {
  .btn-primary      { display: none; }
  .btn-primary-menu { display: inline-flex; }
}
.btn-primary:hover, .btn-primary-menu:hover {
  background-color: #f5f5f5; transform: translateY(-2px);
  box-shadow: 0 0 50px #00f7ff4f;
}

.btn-primary-large {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 16px 24px; min-height: 44px; width: 250px;
  background-color: #ffffff; color: #00adb5;
  font-size: 14px; font-weight: 600; border-radius: 10px;
  transition: all 0.3s ease;
}
.btn-secondary-large {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 16px 24px; min-height: 44px; width: 250px;
  background: linear-gradient(265deg, #03d7e1 0%, #00adb5 100%);
  color: #ffffff; font-size: 14px; font-weight: 600; border-radius: 10px;
  transition: all 0.3s ease;
}
.btn-primary-large:hover  { background-color: #f5f5f5; transform: translateY(-2px); box-shadow: 0 0 50px #00f7ff4f; }
.btn-secondary-large:hover { background: linear-gradient(265deg, #00adb5 0%, #008a90 100%); transform: translateY(-2px); box-shadow: 0 0 50px #00ccd788; }

.btn-cta-primary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 16px 32px; min-height: 44px;
  background: linear-gradient(265deg, #03d7e1 0%, #00adb5 100%);
  color: #ffffff; font-size: 15px; font-weight: 600;
  border-radius: 12px; transition: all 0.3s ease;
}
.btn-cta-primary:hover {
  background: linear-gradient(265deg, #00adb5 0%, #008a90 100%);
  transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,173,181,0.35);
}

.btn-cta-secondary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 16px 32px; min-height: 44px;
  background: rgba(255,255,255,0.9); color: #00adb5;
  font-size: 15px; font-weight: 600; border-radius: 12px;
  border: 1.5px solid rgba(0,173,181,0.3);
  transition: all 0.3s ease;
}
.btn-cta-secondary:hover {
  background: #ffffff; border-color: #00adb5;
  transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,173,181,0.15);
}

.link-read-more { font-size: 13px; font-weight: 600; color: #00adb5; transition: color 0.2s; }
.link-read-more:hover { color: #008a90; }

/* 6. NAVIGATION */
.header {
  position: fixed; top: 0; left: 0; right: 0; width: 100%;
  z-index: 1000; backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.365);
}

.nav-wrapper {
  display: flex; align-items: center; justify-content: space-between;
  width: 95%; margin: 0 auto; padding: 10px 0;
}

.logo { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.logo-icon { width: 25px; height: 25px; transform: rotate(-45deg); }
.logo-text { font-size: 16px; font-weight: 600; }
.logo-primary { color: #003e41; }
.logo-accent  { color: #00adb5; }

.nav-menu { display: flex; gap: 48px; align-items: center; }
@media (max-width: 800px) { .nav-menu { display: none; } }

.nav-link { font-size: 14px; font-weight: 500; color: #003e41; transition: color 0.3s; }
.nav-link:hover, .nav-link.active-link { color: #00adb5; }

/* 7. BREADCRUMB */
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: rgba(0,62,65,0.5); margin-bottom: 32px;
}
.breadcrumb a { color: rgba(0,62,65,0.5); transition: color 0.2s; }
.breadcrumb a:hover { color: #00adb5; }
.breadcrumb-sep { opacity: 0.4; }

/* 8. ARTICLE HERO */
.article-hero {
  width: 100%; padding: 140px 50px 80px;
  background: linear-gradient(180deg, #f0f9fa 0%, #f9f9f9 100%);
}

.article-hero-inner {
  width: 90%; max-width: 900px; margin: 0 auto;
}

.post-meta-hero {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  margin-bottom: 24px;
}

.post-category {
  display: inline-flex; padding: 3px 12px; border-radius: 50px;
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
}
.cat-powerpoint { background: rgba(0,100,200,0.1); color: #0065c8; }
.cat-tips       { background: rgba(0,173,181,0.12); color: #00838a; }
.cat-design     { background: rgba(109,40,217,0.1); color: #7c3aed; }

.post-date { font-size: 12px; color: rgba(0,62,65,0.4); font-weight: 500; }
.post-readtime { font-size: 12px; color: rgba(0,62,65,0.4); font-weight: 500; }
.post-readtime::before { content: "•"; margin-right: 6px; }

.article-hero-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700; line-height: 1.2; margin-bottom: 24px;
  color: #003e41;
}

.article-hero-desc {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: rgba(0,62,65,0.7); line-height: 1.75;
  max-width: 720px; margin-bottom: 40px;
}

.article-author-row {
  display: flex; align-items: center; gap: 14px;
}

.author-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, #00adb5 0%, #003e41 100%);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #ffffff; flex-shrink: 0;
}

.author-info { display: flex; flex-direction: column; gap: 2px; }
.author-name { font-size: 14px; font-weight: 600; color: #003e41; }
.author-role { font-size: 12px; color: rgba(0,62,65,0.45); }

@media (max-width: 768px) {
  .article-hero { padding: 120px 24px 60px; }
}

/* 9. ARTICLE LAYOUT (two-column: TOC + body) */
.article-layout {
  background: #f9f9f9; padding: 60px 0 80px;
}

.article-layout-inner {
  width: 90%; max-width: 1200px; margin: 0 auto;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 60px;
  align-items: start;
}

@media (max-width: 1024px) {
  .article-layout-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* 10. TABLE OF CONTENTS */
.article-toc {
  position: sticky; top: 100px;
  background: #ffffff; border-radius: 16px;
  padding: 28px 24px;
  border: 1px solid rgba(0,62,65,0.08);
  box-shadow: 0 4px 24px rgba(0,62,65,0.05);
}

@media (max-width: 1024px) {
  .article-toc { position: static; }
}

.toc-label {
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.2px;
  color: rgba(0,62,65,0.4); margin-bottom: 16px;
}

.toc-list { display: flex; flex-direction: column; gap: 4px; }
.toc-list li { counter-increment: none; }

.toc-link {
  display: block; padding: 7px 10px; border-radius: 8px;
  font-size: 13px; font-weight: 500; color: rgba(0,62,65,0.6);
  transition: background 0.2s, color 0.2s;
  line-height: 1.4;
}
.toc-link:hover, .toc-link.active {
  background: rgba(0,173,181,0.08); color: #00adb5;
}

/* 11. ARTICLE BODY */
.article-body {
  background: #ffffff; border-radius: 20px;
  padding: 56px 60px;
  border: 1px solid rgba(0,62,65,0.06);
  box-shadow: 0 4px 40px rgba(0,62,65,0.04);
}

@media (max-width: 768px) {
  .article-body { padding: 32px 24px; border-radius: 16px; }
}

.article-body section { margin-bottom: 60px; }
.article-body section:last-child { margin-bottom: 0; }

.article-body h2 {
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  font-weight: 700; color: #003e41;
  margin-bottom: 20px; line-height: 1.25;
  padding-top: 8px;
  border-top: 2px solid rgba(0,173,181,0.15);
}

.article-body h2:first-child { border-top: none; padding-top: 0; }

.article-body h3 {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  font-weight: 600; color: #003e41;
  margin-bottom: 10px; margin-top: 24px;
}

.article-body p {
  font-size: 15px; color: rgba(0,62,65,0.8);
  line-height: 1.8; margin-bottom: 16px;
}

.article-body p:last-child { margin-bottom: 0; }

.article-body strong { color: #003e41; font-weight: 700; }
.article-body em { font-style: italic; }

.article-body code {
  background: rgba(0,173,181,0.1); color: #006f75;
  padding: 2px 6px; border-radius: 4px;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

kbd {
  display: inline-block;
  padding: 2px 8px; border-radius: 4px;
  background: #f0f0f0; border: 1px solid rgba(0,62,65,0.15);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px; color: #003e41;
}

/* 12. LISTS */
.article-list {
  padding-left: 0; display: flex; flex-direction: column; gap: 10px;
  margin-bottom: 20px;
}

.article-list li {
  font-size: 15px; color: rgba(0,62,65,0.8); line-height: 1.7;
  padding-left: 20px; position: relative;
}
.article-list li::before {
  content: "–"; position: absolute; left: 0;
  color: #00adb5; font-weight: 700;
}

.article-list-ordered {
  padding-left: 0; display: flex; flex-direction: column; gap: 10px;
  margin-bottom: 20px; counter-reset: ordered-list;
}
.article-list-ordered li {
  font-size: 15px; color: rgba(0,62,65,0.8); line-height: 1.7;
  padding-left: 28px; position: relative;
  counter-increment: ordered-list;
}
.article-list-ordered li::before {
  content: counter(ordered-list) ".";
  position: absolute; left: 0;
  color: #00adb5; font-weight: 700;
}

/* 13. CALLOUT BOXES */
.callout {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 18px 20px; border-radius: 12px; margin: 24px 0;
  font-size: 14px; line-height: 1.7; color: rgba(0,62,65,0.8);
}

.callout-tip {
  background: rgba(0,173,181,0.07);
  border-left: 3px solid #00adb5;
}
.callout-warning {
  background: rgba(234,179,8,0.08);
  border-left: 3px solid #ca8a04;
}

.callout-icon { font-size: 18px; flex-shrink: 0; line-height: 1.6; }

/* 14. STEP LIST */
.steps-list {
  display: flex; flex-direction: column; gap: 0;
  margin: 24px 0; counter-reset: steps;
}

.step-item {
  display: flex; gap: 20px; align-items: flex-start;
  padding: 24px 0;
  border-bottom: 1px solid rgba(0,62,65,0.07);
}
.step-item:last-child { border-bottom: none; }

.step-number {
  width: 40px; height: 40px; flex-shrink: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, #03d7e1, #00adb5);
  color: #ffffff; font-size: 16px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-top: 2px;
}

.step-content h3 { margin-top: 0; margin-bottom: 8px; }
.step-content p { margin-bottom: 0; }

/* 15. CODE BLOCK */
.code-block {
  background: #f4fafa; border: 1px solid rgba(0,173,181,0.2);
  border-radius: 12px; padding: 24px; margin: 24px 0;
}

.code-label {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; color: rgba(0,62,65,0.45); margin-bottom: 16px !important;
}

.code-steps { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }

.code-step {
  display: flex; align-items: center; gap: 14px;
  background: #ffffff; border-radius: 8px;
  padding: 12px 16px; border: 1px solid rgba(0,62,65,0.08);
}

.code-slide {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: rgba(0,62,65,0.4);
  flex-shrink: 0; width: 60px;
}

.code-object {
  font-size: 14px; color: rgba(0,62,65,0.75);
}

.code-note {
  font-size: 13px !important; color: rgba(0,62,65,0.5) !important;
  font-style: italic; margin-bottom: 0 !important;
}

/* 16. USE CASES GRID */
.use-cases-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 20px; margin-top: 24px;
}

@media (max-width: 768px) { .use-cases-grid { grid-template-columns: 1fr; } }

.use-case-card {
  background: #f9f9f9; border-radius: 14px;
  padding: 24px; border: 1px solid rgba(0,62,65,0.07);
  transition: box-shadow 0.3s, transform 0.3s;
}
.use-case-card:hover {
  box-shadow: 0 8px 32px rgba(0,173,181,0.1);
  transform: translateY(-3px);
}

.use-case-number {
  font-size: 28px; font-weight: 800; color: rgba(0,173,181,0.2);
  line-height: 1; margin-bottom: 10px;
}

.use-case-card h3 {
  font-size: 15px; font-weight: 600; color: #003e41;
  margin-top: 0; margin-bottom: 8px;
}

.use-case-card p {
  font-size: 13.5px !important; margin-bottom: 0 !important;
}

/* 17. MISTAKES LIST */
.mistakes-list { display: flex; flex-direction: column; gap: 0; margin-top: 24px; }

.mistake-item {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 22px 0; border-bottom: 1px solid rgba(0,62,65,0.07);
}
.mistake-item:last-child { border-bottom: none; }

.mistake-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  border-radius: 50%; background: rgba(220,38,38,0.1);
  color: #dc2626; font-size: 18px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-top: 2px;
}

.mistake-content h3 { margin-top: 0; margin-bottom: 8px; }
.mistake-content p { margin-bottom: 0; }

/* 18. ARTICLE CTA */
.article-cta {
  background: linear-gradient(135deg, #f0fafa 0%, #e6f7f8 100%);
  border-radius: 20px; padding: 56px 48px;
  border: 1px solid rgba(0,173,181,0.15);
  text-align: center; margin-top: 0 !important;
}

@media (max-width: 600px) { .article-cta { padding: 40px 24px; } }

.article-cta-inner { display: flex; flex-direction: column; align-items: center; gap: 20px; }

.article-cta h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700; color: #003e41;
  border-top: none !important; padding-top: 0 !important;
  margin-bottom: 0;
}

.article-cta p {
  max-width: 520px; color: rgba(0,62,65,0.65);
  font-size: 15px; line-height: 1.75; margin-bottom: 0;
}

.article-cta-buttons {
  display: flex; gap: 16px; flex-wrap: wrap; justify-content: center;
  margin-top: 8px;
}

/* 19. RELATED POSTS */
.section-related { background: #f9f9f9;display: none; }

.related-heading {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 700; color: #003e41; margin-bottom: 40px;
}

.related-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}

@media (max-width: 1024px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .related-grid { grid-template-columns: 1fr; } }

/* Blog Card (reused from blog/style.css) */
.blog-card {
  background: #ffffff; border-radius: 16px; overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(0,62,65,0.06);
}
.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,174,181,0.12);
}

.blog-card-img-link {
  position: relative; display: block;
  aspect-ratio: 16/9; overflow: hidden;
}

.blog-img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s ease;
}
.blog-card:hover .blog-img { transform: scale(1.04); }

.blog-card-body {
  padding: 24px; display: flex; flex-direction: column; gap: 14px; flex: 1;
}

.blog-card-title {
  font-size: 15px; font-weight: 600; line-height: 1.4;
}
.blog-card-title a { color: #003e41; transition: color 0.2s; }
.blog-card-title a:hover { color: #00adb5; }

.blog-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 12px; border-top: 1px solid rgba(0,62,65,0.07);
  margin-top: auto;
}

/* 20. TRUST BADGE */
.trust-badge {
  display: inline-flex; align-items: center; gap: 15px;
  padding: 8px 20px;
  background-color: rgba(255,255,255,0.8);
  border: 1px solid rgba(255,255,255,0.9);
  border-radius: 50px;
}
.trust-badge-white {
  background-color: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
}
.stars { display: flex; gap: 3px; }
.star { width: 15px; height: 15px; }
.trust-text { font-size: 14px; font-weight: 500; color: #003e41; }

/* 21. FOOTER CTA */
.footer-cta {
  display: flex; align-items: center; justify-content: center;
  min-height: 600px; padding: 100px 50px;
  background: radial-gradient(100% 100% at 50% 0%,
    rgba(59,255,238,0) 12%, rgba(48,240,227,0) 26%,
    rgba(36,223,216,0.17) 54%, rgba(4,220,230,1) 100%);
}

.footer-cta-content {
  display: flex; flex-direction: column; align-items: center;
  gap: 32px; max-width: 700px; text-align: center;
}

.footer-cta-text { display: flex; flex-direction: column; gap: 16px; }

.footer-cta-headline {
  font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 600; line-height: 1.1;
}

.footer-cta-sub { color: #003e41; }

.footer-cta-buttons { display: flex; gap: 32px; flex-wrap: wrap; justify-content: center; }

@media (max-width: 768px) {
  .footer-cta { padding: 80px 24px; min-height: 500px; }
  .footer-cta-buttons { flex-direction: column; width: 100%; }
  .btn-primary-large, .btn-secondary-large { width: 100%; }
}

/* 22. FOOTER */
.footer { background-color: #393e46; padding: 100px 0; }

.footer-content {
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
  display: flex; flex-direction: column; gap: 64px;
}

.footer-top {
  display: grid; grid-template-columns: 1.5fr 3fr; gap: 64px;
}

@media (max-width: 1024px) { .footer-top { grid-template-columns: 1fr; } }

.footer-brand { display: flex; flex-direction: column; gap: 12px; }

.brand-name { font-size: 40px; font-weight: 600; line-height: normal; }
.brand-primary { color: #ffffff; }
.brand-accent  { color: #00adb5; }
.brand-tagline { font-size: 24px; font-weight: 500; color: #ffffff; }

.footer-nav {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 48px;
}

.footer-col { display: flex; flex-direction: column; gap: 20px; }
.footer-col-title { font-size: 16px; font-weight: 600; color: #ffffff; }
.footer-links { display: flex; flex-direction: column; gap: 14px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.5); transition: color 0.3s; }
.footer-links a:hover { color: rgba(255,255,255,0.9); }

.footer-bottom {
  display: flex; justify-content: space-between; align-items: flex-end;
  padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.1);
  flex-wrap: wrap; gap: 24px;
}

.copyright { display: flex; flex-direction: column; gap: 15px; font-size: 14px; color: #ffffff; }

.policy { display: flex; flex-direction: row; gap: 30px; font-size: 12px; }
.policy li { border-right: 1px solid rgba(255,255,255,0.315); padding-right: 20px; }
.policy li:last-child { border-right: none; }

.social-links p { color: rgba(255,255,255,0.575); font-size: 12px; }

/* 23. MOBILE NAV */
.navbar-responsive {
  position: fixed; top: -100%; left: 0; width: 100%;
  background: #f9f9f9;
  display: flex; flex-direction: column; align-items: center;
  padding-bottom: 30px; border-radius: 0 0 10px 10px;
  box-shadow: 0 0 20px rgba(0,0,0,0.17);
  z-index: 999;
  transition: top 0.5s cubic-bezier(0.4,0,0.2,1), opacity 0.5s cubic-bezier(0.4,0,0.2,1);
  opacity: 0;
}
.navbar-responsive.active { top: 0; opacity: 1; }
.navbar-responsive ul { padding-top: 80px; width: 90%; display: flex; flex-direction: column; }
.navbar-responsive ul li { padding: 15px 0; border-bottom: 1px solid rgba(0,0,0,0.04); }
.navbar-responsive ul button {
  display: flex; align-items: center; justify-content: center;
  padding: 14px 20px; min-height: 44px;
  background-color: #ffffff; color: #00adb5;
  font-size: 14px; font-weight: 600; border-radius: 10px; margin-top: 20px;
  transition: all 0.3s ease;
}
.nav-link-responsive { font-size: 14px; font-weight: 500; color: #003e41; }

/* 24. RESPONSIVE */
@media (max-width: 768px) {
  .container { padding: 60px 0; }
  .footer { padding: 60px 0; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .brand-name { font-size: 32px; }
  .brand-tagline { font-size: 18px; }
}

@media (max-width: 480px) {
  .footer-cta-content { align-items: flex-start; text-align: left; }
  .footer-cta-headline { text-align: left; }
  .article-cta-buttons { flex-direction: column; align-items: center; width: 100%; }
  .btn-cta-primary, .btn-cta-secondary { width: 100%; }
}