/* ==========================================================================
   SYMBOLICLARITY — Design System
   Soft dark celestial minimalist
   ========================================================================== */

/* ---------- CSS Variables (Design Tokens) ---------- */
:root {
  /* Background */
  --color-bg: #0F1221;
  --color-bg-section: #161A2E;
  
  /* Accents */
  --color-accent: #C6A95D;
  --color-accent-secondary: #8F9BB3;
  
  /* Text */
  --color-text: #E6E9F2;
  --color-text-secondary: #AAB2C8;
  
  /* Borders */
  --color-border: rgba(255, 255, 255, 0.06);
  
  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Layout */
  --max-width: 860px;
  --padding-mobile: 24px;
  --padding-desktop: 32px;
  --section-gap: 48px;
  --section-gap-desktop: 72px;
  
  /* Transitions */
  --transition-subtle: 0.2s ease;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.02em;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h3 { font-size: 1.125rem; }

p {
  margin: 0 0 1em;
  color: var(--color-text);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-subtle);
}

a:hover {
  color: var(--color-accent-secondary);
}

/* ---------- Layout Container ---------- */
.site-header,
main,
.site-footer {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--padding-mobile);
  padding-right: var(--padding-mobile);
}

@media (min-width: 768px) {
  .site-header,
  main,
  .site-footer {
    padding-left: var(--padding-desktop);
    padding-right: var(--padding-desktop);
  }
}

/* ========== NAVIGATION ========== */
.site-header {
  padding-top: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-text);
}

.nav__logo:hover {
  color: var(--color-accent);
}

.nav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__links a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.nav__links a:hover {
  color: var(--color-text);
}

/* ========== MAIN CONTENT ========== */
main {
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
}

@media (min-width: 768px) {
  main {
    padding-top: var(--section-gap-desktop);
    padding-bottom: var(--section-gap-desktop);
  }
}

/* ---------- Section Titles ---------- */
.section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

/* ========== SECTION 1 — HERO ========== */
.hero {
  margin-bottom: var(--section-gap);
}

@media (min-width: 768px) {
  .hero {
    margin-bottom: var(--section-gap-desktop);
  }
}

.hero__title {
  margin-bottom: 16px;
  font-weight: 500;
}

.hero__subheading {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.hero__paragraph {
  max-width: 560px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 4px;
  transition: background-color var(--transition-subtle), color var(--transition-subtle);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border: 1px solid var(--color-accent);
}

.btn--primary:hover {
  background-color: transparent;
  color: var(--color-accent);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-accent-secondary);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  background-color: var(--color-bg-section);
  border-color: rgba(255, 255, 255, 0.1);
}

/* ========== SECTION 2 — CATEGORIES GRID ========== */
.categories {
  margin-bottom: var(--section-gap);
}

@media (min-width: 768px) {
  .categories {
    margin-bottom: var(--section-gap-desktop);
  }
}

.categories__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

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

/* ---------- Cards ---------- */
.card {
  padding: 28px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  transition: background-color var(--transition-subtle), border-color var(--transition-subtle);
}

.card:hover {
  background-color: var(--color-bg-section);
  border-color: rgba(255, 255, 255, 0.08);
}

.card__title {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.card__description {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
}

.card__link {
  font-size: 0.9rem;
  color: var(--color-accent);
}

.card__link:hover {
  color: var(--color-accent-secondary);
}

/* ========== SECTION 3 — POSITIONING BLOCK ========== */
.positioning {
  margin-bottom: var(--section-gap);
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .positioning {
    margin-bottom: var(--section-gap-desktop);
    padding: 48px 0;
  }
}

.positioning__quote {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  font-style: italic;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========== SECTION 4 — LATEST GUIDES ========== */
.guides {
  margin-bottom: 0;
}

.guides__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.guides__list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.guides__list li:last-child {
  border-bottom: none;
}

.guides__list a {
  color: var(--color-text);
}

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

/* ========== FOOTER ========== */
.site-footer {
  padding-top: 32px;
  padding-bottom: 32px;
  border-top: 1px solid var(--color-border);
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 24px;
}

.footer__nav a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.footer__nav a:hover {
  color: var(--color-text);
}

.footer__copyright {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin: 0;
}

/* ---------- Optional: Subtle fade-in (reduced motion safe) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .hero__title,
  .hero__subheading,
  .hero__paragraph,
  .card {
    animation: fadeIn 0.4s ease-out;
  }
  
  .card:nth-child(1) { animation-delay: 0.05s; }
  .card:nth-child(2) { animation-delay: 0.1s; }
  .card:nth-child(3) { animation-delay: 0.15s; }
  .card:nth-child(4) { animation-delay: 0.2s; }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== ARTICLE / GUIDE PAGES ========== */
.article {
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
}

@media (min-width: 768px) {
  .article {
    padding-top: var(--section-gap-desktop);
    padding-bottom: var(--section-gap-desktop);
  }
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--color-text-secondary);
}

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

.breadcrumb__sep {
  margin: 0 8px;
  opacity: 0.5;
}

.article__title {
  margin-bottom: 16px;
}

.article__intro {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
}

.article section {
  margin-bottom: 48px;
}

.article section:last-of-type {
  margin-bottom: 0;
}

.article h2 {
  font-size: 1.25rem;
  margin-top: 0;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.article h3 {
  font-size: 1rem;
  margin-top: 24px;
  margin-bottom: 8px;
}

.article p {
  margin-bottom: 1em;
}

.article ul {
  margin: 0 0 1em;
  padding-left: 1.25em;
}

.article li {
  margin-bottom: 0.5em;
}

/* Ad placement placeholder — for future sticky/mobile */
.article__ad-slot {
  min-height: 0;
  margin: 24px 0;
}

/* Related numbers */
.related-numbers {
  padding: 28px;
  background-color: var(--color-bg-section);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  margin-top: 48px;
}

.related-numbers h2 {
  border: none;
  padding: 0;
  margin-bottom: 16px;
}

.related-numbers__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 500px) {
  .related-numbers__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.related-numbers__grid a {
  color: var(--color-text);
  font-size: 0.95rem;
}

.related-numbers__grid a:hover {
  color: var(--color-accent);
}

/* FAQ */
.faq {
  margin-top: 48px;
}

.faq h2 {
  margin-bottom: 24px;
}

.faq details {
  border-bottom: 1px solid var(--color-border);
}

.faq summary {
  font-weight: 500;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::before {
  content: "+ ";
  color: var(--color-accent);
  margin-right: 4px;
}

.faq details[open] summary::before {
  content: "− ";
}

.faq__answer {
  padding: 0 0 20px 0;
  color: var(--color-text-secondary);
}

.faq__answer p {
  margin: 0 0 0.5em;
}

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