/* Reset and Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--smai-header-height) + 20px);
}

body {
  font-family: var(--smai-font-sans);
  background-color: var(--smai-bg);
  color: var(--smai-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

a {
  color: var(--smai-primary);
  text-decoration: none;
  transition: var(--smai-transition);
}

a:hover {
  color: #8cc0ff;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--smai-font-sans);
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: var(--smai-spacing-sm);
  font-weight: 600;
}

/* Header */
.smai-header {
  background-color: var(--smai-header-bg);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid var(--smai-border);
}

.smai-top-bar {
  background-color: #000;
  padding: 0.5rem 0;
  font-size: 0.8rem;
  border-bottom: 1px solid var(--smai-border);
}

.smai-top-bar-inner {
  max-width: var(--smai-max-width-wide);
  margin: 0 auto;
  padding: 0 var(--smai-spacing-sm);
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.smai-top-bar a {
  color: var(--smai-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.smai-top-bar a:hover {
  color: var(--smai-text);
}

.smai-header-main {
  height: var(--smai-header-height);
  display: flex;
  align-items: center;
}

.smai-header-inner {
  max-width: var(--smai-max-width-wide);
  margin: 0 auto;
  padding: 0 var(--smai-spacing-sm);
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.smai-logo {
  font-size: 1.5rem;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 0 10px var(--smai-primary-glow);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.smai-logo span {
  color: var(--smai-primary);
}

.smai-nav ul {
  display: flex;
  gap: 2rem;
}

.smai-nav a {
  color: var(--smai-text);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

.smai-nav a:hover,
.smai-nav a.smai-active {
  color: var(--smai-primary);
}

.smai-mobile-btn {
  display: none;
  background: none;
  border: none;
  color: var(--smai-text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Progress Bar */
#smai-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background-color: var(--smai-primary);
  width: 0%;
  z-index: 1000;
  box-shadow: 0 0 8px var(--smai-primary);
  transition: width 0.1s;
}

/* Layout Containers */
.smai-container-article {
  max-width: var(--smai-max-width-article);
  margin: 0 auto;
  padding: 0 var(--smai-spacing-sm);
}

.smai-container-wide {
  max-width: var(--smai-max-width-wide);
  margin: 0 auto;
  padding: 0 var(--smai-spacing-sm);
}

/* Article Hero */
.smai-article-hero {
  padding-top: calc(var(--smai-header-height) + 40px + var(--smai-spacing-md));
  padding-bottom: var(--smai-spacing-lg);
  text-align: center;
}

.smai-category-badge {
  display: inline-block;
  background-color: rgba(96, 168, 255, 0.1);
  color: var(--smai-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 1rem;
  border: 1px solid rgba(96, 168, 255, 0.2);
}

.smai-article-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1.5rem;
  line-height: 1.1;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.smai-article-meta {
  color: var(--smai-muted);
  font-size: 0.9rem;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: var(--smai-spacing-md);
}

.smai-hero-image-wrap {
  position: relative;
  margin-bottom: var(--smai-spacing-lg);
  border-radius: var(--smai-border-radius);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.smai-hero-image-wrap img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

/* Social Share */
.smai-share-bar {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: var(--smai-spacing-lg);
}

.smai-share-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--smai-surface);
  border: 1px solid var(--smai-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--smai-text);
  cursor: pointer;
  transition: var(--smai-transition);
}

.smai-share-btn:hover {
  background-color: var(--smai-primary);
  border-color: var(--smai-primary);
  color: #fff;
}

/* Indice / TOC */
.smai-toc {
  background-color: var(--smai-surface);
  border: 1px solid var(--smai-border);
  border-radius: var(--smai-border-radius);
  padding: 1.5rem;
  margin-bottom: var(--smai-spacing-lg);
}

.smai-toc-title {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  color: var(--smai-primary);
}

.smai-toc ol {
  counter-reset: smai-toc-counter;
}

.smai-toc li {
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 2rem;
}

.smai-toc li::before {
  counter-increment: smai-toc-counter;
  content: counter(smai-toc-counter) ".";
  position: absolute;
  left: 0;
  color: var(--smai-muted);
  font-family: var(--smai-font-sans);
  font-weight: 500;
}

.smai-toc a {
  color: var(--smai-text);
  font-size: 1rem;
}

.smai-toc a:hover,
.smai-toc a.smai-active {
  color: var(--smai-primary);
}

/* Article Body */
.smai-article-body {
  font-family: var(--smai-font-serif);
  font-size: 1.125rem;
  line-height: 1.8;
  color: #D1D5DB;
}

.smai-article-body p {
  margin-bottom: 1.5rem;
}

.smai-article-body h2 {
  font-family: var(--smai-font-sans);
  font-size: 2rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--smai-border);
  color: #fff;
}

.smai-article-body figure {
  margin: 2rem 0;
}

.smai-article-body figcaption {
  font-family: var(--smai-font-sans);
  font-size: 0.85rem;
  color: var(--smai-muted);
  text-align: center;
  margin-top: 0.5rem;
}

/* Comparison Table */
.smai-table-wrap {
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid var(--smai-border);
  border-radius: var(--smai-border-radius);
}

.smai-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--smai-font-sans);
  font-size: 0.95rem;
}

.smai-table th,
.smai-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--smai-border);
}

.smai-table th {
  background-color: var(--smai-surface);
  color: var(--smai-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.85rem;
}

.smai-table tbody tr:last-child td {
  border-bottom: none;
}

.smai-table tbody tr {
  background-color: rgba(26, 29, 46, 0.3);
}

.smai-table tbody tr:nth-child(even) {
  background-color: rgba(26, 29, 46, 0.8);
}

.smai-val-best {
  color: var(--smai-accent-green);
  font-weight: 600;
}

/* Pros/Cons Box */
.smai-pro-con {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 2.5rem 0;
  font-family: var(--smai-font-sans);
}

.smai-pc-col {
  background-color: var(--smai-surface);
  border: 1px solid var(--smai-border);
  border-radius: var(--smai-border-radius);
  padding: 1.5rem;
}

.smai-pc-col.smai-pros {
  border-top: 3px solid var(--smai-accent-green);
}

.smai-pc-col.smai-cons {
  border-top: 3px solid var(--smai-accent-red);
}

.smai-pc-col h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.smai-pc-col.smai-pros h3 {
  color: var(--smai-accent-green);
}

.smai-pc-col.smai-cons h3 {
  color: var(--smai-accent-red);
}

.smai-pc-col ul li {
  margin-bottom: 0.5rem;
  display: flex;
  gap: 0.5rem;
  font-size: 0.95rem;
}

/* Author Box */
.smai-author-box {
  background-color: var(--smai-surface);
  border: 1px solid var(--smai-border);
  border-radius: var(--smai-border-radius);
  padding: 2rem;
  margin-top: 4rem;
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.smai-author-img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
}

.smai-author-info {
  flex: 1;
}

.smai-author-info h4 {
  margin-bottom: 0.25rem;
  font-size: 1.2rem;
}

.smai-author-info p {
  color: var(--smai-muted);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* Related Articles */
.smai-related {
  background-color: var(--smai-header-bg);
  padding: 4rem 0;
  margin-top: 4rem;
  border-top: 1px solid var(--smai-border);
}

.smai-section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
}

.smai-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.smai-card {
  background-color: var(--smai-surface);
  border: 1px solid var(--smai-border);
  border-radius: var(--smai-border-radius);
  overflow: hidden;
  transition: var(--smai-transition);
  display: flex;
  flex-direction: column;
}

.smai-card:hover {
  border-color: var(--smai-primary);
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.5);
}

.smai-card-img {
  height: 200px;
  object-fit: cover;
  width: 100%;
}

.smai-card-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.smai-card-category {
  font-size: 0.75rem;
  color: var(--smai-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.smai-card-title {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.smai-card-title a {
  color: var(--smai-text);
}

.smai-card-title a:hover {
  color: var(--smai-primary);
}

.smai-card-meta {
  margin-top: auto;
  font-size: 0.8rem;
  color: var(--smai-muted);
}

/* Footer */
.smai-footer {
  background-color: var(--smai-footer-bg);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--smai-border);
}

.smai-footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.smai-footer h4 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.smai-footer p {
  color: var(--smai-muted);
  font-size: 0.9rem;
}

.smai-footer ul li {
  margin-bottom: 0.75rem;
}

.smai-footer ul a {
  color: var(--smai-muted);
  font-size: 0.9rem;
}

.smai-footer ul a:hover {
  color: var(--smai-primary);
}

.smai-footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--smai-border);
  color: var(--smai-muted);
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.smai-footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

/* Utilities */
.smai-btn {
  display: inline-block;
  background-color: var(--smai-primary);
  color: #000;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: var(--smai-transition);
}

.smai-btn:hover {
  background-color: #8cc0ff;
  color: #000;
}

.smai-form-group {
  margin-bottom: 1.5rem;
}

.smai-form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--smai-text);
  font-weight: 500;
}

.smai-form-control {
  width: 100%;
  padding: 0.75rem;
  background-color: var(--smai-surface);
  border: 1px solid var(--smai-border);
  color: var(--smai-text);
  border-radius: 4px;
  font-family: var(--smai-font-sans);
}

.smai-form-control:focus {
  outline: none;
  border-color: var(--smai-primary);
}

.smai-page-header {
  padding: calc(var(--smai-header-height) + 4rem) 0 3rem;
  text-align: center;
  background-color: var(--smai-surface);
  border-bottom: 1px solid var(--smai-border);
  margin-bottom: 3rem;
}

/* Back to top */
#smai-back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 40px;
  height: 40px;
  background-color: var(--smai-surface);
  border: 1px solid var(--smai-primary);
  color: var(--smai-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--smai-transition);
  z-index: 99;
}

#smai-back-to-top.smai-visible {
  opacity: 1;
  visibility: visible;
}

#smai-back-to-top:hover {
  background-color: var(--smai-primary);
  color: #000;
}

/* Legal Pages */
.smai-legal-content h2 {
  margin-top: 2rem;
}

/* Mobile */
@media (max-width: 768px) {
  .smai-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--smai-header-bg);
    padding: 1rem;
    border-bottom: 1px solid var(--smai-border);
  }
  
  .smai-nav.smai-open {
    display: block;
  }
  
  .smai-nav ul {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .smai-mobile-btn {
    display: block;
  }

  .smai-top-bar {
    display: none;
  }

  .smai-pro-con {
    grid-template-columns: 1fr;
  }
}