/* ============================================
   PHANTAZEIN — Making the Invisible Visible
   ============================================ */

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

:root {
  --color-bg: #080a10;
  --color-bg-secondary: #0e1118;
  --color-bg-card: #131620;
  --color-text: #e4e6ec;
  --color-text-secondary: #8a8ea0;
  --color-accent: #00e4ff;
  --color-accent-light: #4dddff;
  --color-accent-dim: rgba(0, 228, 255, 0.12);
  --color-accent-secondary: #00e4ff;
  --color-border: #1e2230;
  --color-highlight: #ffeb00;
  --font-heading: 'Playfair Display', 'Georgia', serif;
  --font-body: 'Source Serif 4', 'Noto Serif', 'Georgia', serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', 'Helvetica Neue', sans-serif;
  --max-width: 1200px;
  --header-height: 80px;
}

/* Scroll offset for sticky header */
[id] {
  scroll-margin-top: calc(var(--header-height) + 1.5rem);
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background: var(--color-bg);
  background: var(--color-bg);
}

body {
  font-family: var(--font-body);
  background: var(--color-bg) url('../../assets/images/cosmic-bg.jpg') no-repeat center top fixed;
  background-size: cover;
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a, a:visited, a:active, a:focus {
  color: var(--color-accent);
  text-decoration: none !important;
  transition: color 0.2s, opacity 0.2s;
}

a:hover {
  color: var(--color-accent-light);
  text-decoration: none !important;
}

.article-card, .article-card:hover,
.hero-main, .hero-main:hover,
.hero-sidebar-item, .hero-sidebar-item:hover {
  text-decoration: none !important;
  color: inherit;
}

.article-card .card-title,
.hero-title,
.hero-sidebar-item .item-title {
  color: var(--color-text);
}

.article-card:hover .card-title {
  color: var(--color-accent-light);
}

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

/* --- Header / Masthead --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 8, 16, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo, .site-logo:visited, .site-logo:hover, .site-logo:active {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text) !important;
}

.site-logo span.site-tagline {
  color: var(--color-accent) !important;
}

.site-logo span:not(.site-tagline) {
  color: var(--color-accent);
}

.site-tagline {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  display: block;
  margin-top: -2px;
}

/* --- Navigation --- */
.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-nav a {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  position: relative;
  padding: 0.25rem 0;
}

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

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.3s;
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-subscribe {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-bg) !important;
  background: var(--color-accent);
  padding: 0.5rem 1.25rem;
  border-radius: 2px;
}

.nav-subscribe:hover {
  background: var(--color-highlight);
  color: var(--color-bg) !important;
}

.nav-browse {
  padding: 0.4rem 2rem 0.4rem 0.75rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238a8ea0'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
  transition: border-color 0.2s, color 0.2s;
}

.nav-browse:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.nav-browse:focus {
  outline: none;
  border-color: var(--color-accent);
}

.nav-browse option {
  background: var(--color-bg);
  color: var(--color-text);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 2rem 2rem;
}

.hero-featured {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.hero-main {
  position: relative;
  overflow: hidden;
  border-radius: 3px;
  background: var(--color-bg-card);
}

.hero-main .hero-image {
  width: 100%;
  height: 420px;
  object-fit: cover;
  opacity: 0.85;
  transition: opacity 0.4s;
}

.hero-main:hover .hero-image {
  opacity: 1;
}

.hero-main .hero-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2.5rem;
  background: linear-gradient(transparent, rgba(10, 10, 15, 0.95));
}

.hero-category {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  display: inline-block;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.hero-excerpt {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.hero-meta {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.hero-meta .author {
  color: var(--color-text);
  font-weight: 500;
}

/* Hero sidebar articles */
.hero-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-sidebar-item {
  display: flex;
  gap: 1rem;
  padding: 1rem;
  background: var(--color-bg-card);
  border-radius: 3px;
  border-left: 2px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}

.hero-sidebar-item:hover {
  border-left-color: var(--color-accent);
  background: var(--color-bg-secondary);
}

.hero-sidebar-item .thumb {
  width: 100px;
  min-width: 100px;
  height: 75px;
  object-fit: cover;
  border-radius: 2px;
  opacity: 0.8;
}

.hero-sidebar-item .item-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-sidebar-item .item-category {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-secondary);
  margin-bottom: 0.3rem;
}

.hero-sidebar-item .item-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

.hero-sidebar-item .item-meta {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  margin-top: 0.3rem;
}

/* --- Section Headers --- */
.section-header {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 2rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
}

.section-title {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section-link {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

/* --- Article Grid --- */
.article-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem 3rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.article-card {
  background: var(--color-bg-card);
  border-radius: 3px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid transparent;
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-border);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.article-card .card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  opacity: 0.8;
  transition: opacity 0.3s;
}

.article-card:hover .card-image {
  opacity: 1;
}

.article-card .card-body {
  padding: 1.5rem;
}

.article-card .card-category {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent-secondary);
  margin-bottom: 0.5rem;
  display: inline-block;
}

.article-card .card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.6rem;
  color: var(--color-text);
}

.article-card .card-excerpt {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card .card-meta {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  color: var(--color-text-secondary);
}

.article-card .card-meta .author {
  color: var(--color-text);
  font-weight: 500;
}

/* --- Newsletter CTA --- */
.newsletter-cta {
  max-width: var(--max-width);
  margin: 2rem auto 3rem;
  padding: 0 2rem;
}

.newsletter-inner {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  padding: 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.newsletter-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light), var(--color-accent));
}

.newsletter-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.newsletter-desc {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.newsletter-form {
  display: flex;
  gap: 0.75rem;
  max-width: 440px;
  margin: 0 auto;
}

.newsletter-form input[type="email"] {
  flex: 1;
  padding: 0.75rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.newsletter-form input[type="email"]::placeholder {
  color: var(--color-text-secondary);
}

.newsletter-form input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent);
}

.newsletter-form button {
  padding: 0.75rem 1.5rem;
  background: var(--color-accent);
  color: var(--color-bg);
  border: none;
  border-radius: 2px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s;
}

.newsletter-form button:hover {
  background: var(--color-highlight);
}

/* --- Search Bar --- */
.search-bar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem 1rem;
}

.search-inner {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.search-inner input[type="text"] {
  flex: 1;
  padding: 0.7rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.search-inner input[type="text"]::placeholder {
  color: var(--color-text-secondary);
}

.search-inner input[type="text"]:focus {
  outline: none;
  border-color: var(--color-accent);
}

.search-inner select {
  padding: 0.7rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%239a9aaa'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.25rem;
}

.search-inner select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.search-inner select option {
  background: var(--color-bg);
  color: var(--color-text);
}

/* Search results overlay */
.search-results {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem 2rem;
  display: none;
}

.search-results.active {
  display: block;
}

.search-results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.search-results-count {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.search-results-close {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-accent);
  background: none;
  border: none;
  cursor: pointer;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.search-results-close:hover {
  color: var(--color-highlight);
}

.search-results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.search-no-results {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  text-align: center;
  padding: 2rem 0;
}

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

@media (max-width: 768px) {
  .search-bar {
    padding: 0 1.25rem 1rem;
  }
  .search-inner {
    flex-direction: column;
  }
  .search-inner select {
    width: 100%;
  }
  .search-results {
    padding: 0 1.25rem 2rem;
  }
  .search-results-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: rgba(10, 13, 22, 0.92);
  backdrop-filter: blur(8px);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 2rem;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
}

.footer-brand .footer-logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.footer-brand .footer-desc {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col ul li a {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.footer-col ul li a:hover {
  color: var(--color-text);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copyright {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.footer-social {
  display: flex;
  gap: 1.25rem;
}

.footer-social a {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero-featured {
    grid-template-columns: 1fr;
  }
  .hero-sidebar {
    flex-direction: row;
    overflow-x: auto;
  }
  .hero-sidebar-item {
    min-width: 280px;
  }
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 1.25rem;
  }
  .main-nav {
    display: none;
  }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    gap: 1rem;
  }
  .nav-toggle {
    display: block;
  }
  .hero {
    padding: 2rem 1.25rem;
  }
  .hero-title {
    font-size: 1.6rem;
  }
  .hero-main .hero-image {
    height: 280px;
  }
  .article-grid {
    grid-template-columns: 1fr;
    padding: 0 1.25rem 2rem;
  }
  .section-header {
    padding: 2rem 1.25rem 0.75rem;
  }
  .newsletter-inner {
    padding: 2rem 1.5rem;
  }
  .newsletter-form {
    flex-direction: column;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}