/* ========================================================
   Vidor Support — style.css
   ======================================================== */

/* === CSS Variables === */
:root {
  --blue: #4d65ff;
  --blue-light: #eef0ff;
  --red: #e8001c;
  --black: #0d0d0d;
  --gray-900: #1a1a1a;
  --gray-700: #444;
  --gray-500: #767676;
  --gray-200: #e8e8e8;
  --gray-100: #f5f5f5;
  --white: #fff;
  --radius: 14px;
  --font: "DM Sans", system-ui, sans-serif;
  --sidebar-width: 240px;
  --header-height: 64px;
  --transition: 0.18s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  font-weight: 400;
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
  min-height: 100vh;
}

/* === Links === */
a {
  color: var(--blue);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: #3347dd;
  text-decoration: underline;
}

/* === Container === */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ========================================================
   HEADER
   ======================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--black);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}
.site-logo:hover {
  text-decoration: none;
  color: var(--black);
}

.logo-suffix {
  font-weight: 400;
  font-size: 0.875rem;
  color: var(--gray-500);
  letter-spacing: -0.01em;
}

.site-logo svg {
  display: block;
  flex-shrink: 0;
}

.logo-divider {
  width: 1px;
  height: 16px;
  background: var(--gray-200);
  display: inline-block;
}

.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1.5px solid var(--gray-200);
  border-radius: 50px;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  transition:
    border-color var(--transition),
    color var(--transition),
    background var(--transition);
}
.header-btn:hover {
  border-color: var(--black);
  color: var(--black);
  text-decoration: none;
  background: var(--gray-100);
}

/* ========================================================
   HERO (index only)
   ======================================================== */
.hero {
  background: linear-gradient(135deg, #eef0ff 0%, #fdf0f8 50%, #e8f4ff 100%);
  padding: 80px 32px 96px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--black);
  margin-bottom: 18px;
  line-height: 1.15;
}

.hero p {
  font-size: 1.15rem;
  color: var(--gray-700);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.65;
  font-weight: 400;
}

/* ========================================================
   CATEGORY GRID (index)
   ======================================================== */
.categories {
  padding: 64px 0;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 0;
}

.category-card {
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--white);
  text-decoration: none;
  color: var(--gray-900);
  transition:
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
  position: relative;
  overflow: hidden;
}
.category-card:hover {
  border-color: var(--blue);
  box-shadow: 0 8px 32px rgba(77, 101, 255, 0.12);
  transform: translateY(-2px);
  text-decoration: none;
  color: var(--gray-900);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  flex-shrink: 0;
}
.card-icon svg,
.card-icon i.ph {
  width: 22px;
  height: 22px;
  font-size: 22px;
  color: var(--blue);
  line-height: 1;
}

/* Phosphor icon sizing in other contexts */
.header-btn i.ph {
  font-size: 14px;
  line-height: 1;
}

.card-arrow i.ph {
  font-size: 13px;
  line-height: 1;
}

.btn-primary i.ph {
  font-size: 16px;
  line-height: 1;
}

.resource-link i.ph {
  font-size: 16px;
  flex-shrink: 0;
  color: var(--blue);
  line-height: 1;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.card-desc {
  font-size: 0.875rem;
  color: var(--gray-500);
  line-height: 1.55;
  flex: 1;
}

.card-arrow {
  margin-top: 20px;
  display: flex;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--blue);
  gap: 4px;
}

/* ========================================================
   ARTICLE LAYOUT
   ======================================================== */
.article-page {
  min-height: calc(100vh - var(--header-height));
}

.article-layout {
  display: flex;
  align-items: flex-start;
  gap: 64px;
  padding: 48px 0 80px;
  position: relative;
}

/* === Sidebar === */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--header-height) + 16px);
  max-height: calc(100vh - var(--header-height) - 32px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--gray-200) transparent;
}

.sidebar::-webkit-scrollbar {
  width: 4px;
}
.sidebar::-webkit-scrollbar-track {
  background: transparent;
}
.sidebar::-webkit-scrollbar-thumb {
  background: var(--gray-200);
  border-radius: 4px;
}

.sidebar-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 10px;
  padding: 0 12px;
}

.sidebar-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--gray-700);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition);
}
.sidebar-nav a:hover {
  background: var(--gray-100);
  color: var(--black);
  text-decoration: none;
}
.sidebar-nav a.active {
  background: var(--blue-light);
  color: var(--blue);
  font-weight: 600;
  border-left-color: var(--blue);
}

/* === Article Main Content === */
.article-main {
  flex: 1;
  min-width: 0;
  max-width: 720px;
}

/* Breadcrumb */
.breadcrumb {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb a {
  color: var(--gray-500);
  text-decoration: none;
}
.breadcrumb a:hover {
  color: var(--blue);
}
.breadcrumb .sep {
  color: var(--gray-200);
}

/* === Typography in Articles === */
.article-content h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--black);
  line-height: 1.2;
  margin-bottom: 12px;
}

.article-content .lead {
  font-size: 1.05rem;
  color: var(--gray-500);
  margin-bottom: 40px;
  line-height: 1.65;
}

.article-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 48px 0 16px;
  line-height: 1.3;
}

.article-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--gray-900);
  margin: 32px 0 12px;
  line-height: 1.35;
}

.article-content h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gray-700);
  margin: 24px 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.article-content p {
  font-size: 0.9625rem;
  line-height: 1.75;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.article-content ul,
.article-content ol {
  margin: 12px 0 20px 20px;
}

.article-content ul li,
.article-content ol li {
  font-size: 0.9625rem;
  line-height: 1.7;
  color: var(--gray-900);
  margin-bottom: 6px;
}

.article-content ul {
  list-style: disc;
}
.article-content ol {
  list-style: decimal;
}

.article-content strong {
  font-weight: 600;
  color: var(--black);
}

.article-content hr {
  border: none;
  border-top: 1px solid var(--gray-200);
  margin: 48px 0;
}

/* Code */
.article-content code {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 0.85em;
  background: var(--gray-100);
  padding: 2px 6px;
  border-radius: 5px;
  color: var(--red);
}

/* Tables */
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-200);
}

.article-content th {
  background: var(--gray-100);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-200);
}

.article-content td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-200);
  vertical-align: top;
  line-height: 1.55;
}

.article-content tr:last-child td {
  border-bottom: none;
}
.article-content tr:nth-child(even) td {
  background: var(--gray-100);
}

/* Callout boxes */
.callout {
  background: var(--blue-light);
  border-left: 3px solid var(--blue);
  border-radius: 0 10px 10px 0;
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--gray-900);
}
.callout strong {
  color: var(--blue);
}
.callout.warning {
  background: #fff8e6;
  border-left-color: #f5a623;
}
.callout.warning strong {
  color: #b37a00;
}

/* Step badges */
.steps {
  list-style: none;
  margin: 16px 0 24px;
}
.steps li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 16px;
}
.step-badge {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--black);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.steps li .step-text {
  flex: 1;
  font-size: 0.9625rem;
  line-height: 1.7;
  color: var(--gray-900);
}

/* FAQ Accordion */
.faq-section {
  margin-bottom: 40px;
}

.faq-section h2 {
  margin-bottom: 16px;
}

details.faq-item {
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  margin-bottom: 8px;
  overflow: hidden;
  transition: border-color var(--transition);
}
details.faq-item[open] {
  border-color: var(--blue);
}
details.faq-item summary {
  padding: 16px 20px;
  font-size: 0.9625rem;
  font-weight: 500;
  color: var(--black);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  user-select: none;
}
details.faq-item summary::-webkit-details-marker {
  display: none;
}
details.faq-item summary::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--gray-500);
  flex-shrink: 0;
  line-height: 1;
  transition: transform var(--transition);
}
details.faq-item[open] summary::after {
  content: "×";
}
details.faq-item .faq-answer {
  padding: 0 20px 18px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--gray-700);
  border-top: 1px solid var(--gray-200);
  padding-top: 14px;
}
details.faq-item .faq-answer p {
  margin-bottom: 10px;
}
details.faq-item .faq-answer p:last-child {
  margin-bottom: 0;
}
details.faq-item .faq-answer ul {
  margin: 8px 0 12px 18px;
}

/* Glossary */
.glossary-index {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 40px;
}
.glossary-index a {
  padding: 4px 10px;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-700);
  text-decoration: none;
  transition:
    background var(--transition),
    border-color var(--transition),
    color var(--transition);
}
.glossary-index a:hover {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
  text-decoration: none;
}

.glossary-letter {
  margin-bottom: 40px;
}
.glossary-letter h2 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gray-500);
  margin-bottom: 16px;
  margin-top: 0;
}

.glossary-term {
  border-left: 2px solid var(--gray-200);
  padding: 12px 0 12px 20px;
  margin-bottom: 16px;
  transition: border-color var(--transition);
}
.glossary-term:hover {
  border-color: var(--blue);
}
.glossary-term dt {
  font-weight: 600;
  font-size: 0.9625rem;
  color: var(--black);
  margin-bottom: 6px;
}
.glossary-term dd {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--gray-700);
}

/* Checklist */
.checklist {
  list-style: none;
  margin: 16px 0 24px;
}
.checklist li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.9625rem;
  line-height: 1.65;
  color: var(--gray-900);
  margin-bottom: 10px;
  padding: 12px 16px;
  background: var(--gray-100);
  border-radius: 10px;
}
.checklist li::before {
  content: "";
  width: 20px;
  height: 20px;
  border: 2px solid var(--gray-200);
  border-radius: 5px;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ========================================================
   CONTACT CTA
   ======================================================== */
.contact-cta {
  background: linear-gradient(135deg, var(--gray-900) 0%, #2a2a3e 100%);
  border-radius: var(--radius);
  padding: 56px 48px;
  text-align: center;
  margin: 64px 0;
}
.contact-cta h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.contact-cta p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 28px;
  line-height: 1.65;
}
.contact-cta .btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  background: var(--blue);
  color: var(--white);
  border-radius: 50px;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  transition:
    background var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}
.contact-cta .btn-primary:hover {
  background: #3347dd;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(77, 101, 255, 0.35);
  text-decoration: none;
  color: var(--white);
}

/* ========================================================
   FOOTER
   ======================================================== */
.site-footer {
  background: var(--black);
  padding: 40px 0;
  margin-top: 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.footer-logo span {
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
  letter-spacing: -0.02em;
}
.footer-logo:hover {
  text-decoration: none;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-links a:hover {
  color: var(--white);
  text-decoration: none;
}

/* ========================================================
   MOBILE PILL NAV (sidebar replacement on mobile)
   ======================================================== */
.mobile-nav {
  display: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  gap: 8px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--gray-200);
  background: var(--white);
}
.mobile-nav::-webkit-scrollbar {
  display: none;
}
.mobile-nav a {
  display: inline-flex;
  white-space: nowrap;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--gray-700);
  background: var(--gray-100);
  text-decoration: none;
  border: 1.5px solid transparent;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition);
}
.mobile-nav a:hover {
  background: var(--blue-light);
  color: var(--blue);
  text-decoration: none;
}
.mobile-nav a.active {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}

/* ========================================================
   RESPONSIVE
   ======================================================== */
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .hero {
    padding: 56px 20px 64px;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero p {
    font-size: 1rem;
  }

  .categories {
    padding: 40px 0;
  }
  .categories-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .article-layout {
    flex-direction: column;
    gap: 0;
    padding: 32px 0 60px;
  }

  .sidebar {
    display: none;
  }
  .mobile-nav {
    display: flex;
  }

  .article-main {
    max-width: 100%;
  }

  .contact-cta {
    padding: 40px 24px;
    margin: 40px 0;
    border-radius: 10px;
  }
  .contact-cta h2 {
    font-size: 1.4rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .footer-links {
    gap: 16px;
  }

  .article-content h2 {
    margin-top: 36px;
  }
}

@media (max-width: 480px) {
  .header-btn span {
    display: none;
  }
}

/* ========================================================
   SECTION DIVIDERS ON INDEX
   ======================================================== */
.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 24px;
}

/* Refund table highlight */
.article-content td:last-child {
  font-weight: 500;
}

/* Resource links grid */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin: 24px 0;
}
.resource-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-900);
  text-decoration: none;
  transition:
    border-color var(--transition),
    color var(--transition),
    background var(--transition);
}
.resource-link:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-light);
  text-decoration: none;
}
.resource-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--blue);
}