/* ============================================================
   Buildaria — Main Site CSS
   Dark fantasy/RPG game website theme
   ============================================================ */

/* --- Variables --- */
:root {
  --bg:           #0c0d16;
  --surface:      #13152a;
  --surface-2:    #1a1d36;
  --border:       #252847;
  --primary:      #7c5cbf;
  --primary-light:#9b7fd4;
  --primary-dark: #5a3ea0;
  --accent:       #f0a500;
  --accent-dark:  #c47f00;
  --text:         #e2e8f0;
  --text-muted:   #94a3b8;
  --success:      #10b981;
  --danger:       #ef4444;
  --warning:      #f59e0b;
  --nav-h:        68px;
  --radius:       8px;
  --radius-lg:    14px;
  --transition:   0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Rajdhani', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

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

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

ul { list-style: none; }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

main { flex: 1; }

.page-section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  color: var(--accent);
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(12, 13, 22, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
}

.nav-logo {
  height: 40px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: var(--text); }

.nav-cta {
  background: var(--primary);
  color: var(--text) !important;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-weight: 600 !important;
  transition: background var(--transition) !important;
}

.nav-cta:hover { background: var(--primary-dark) !important; color: var(--text) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-h);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124, 92, 191, 0.25) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 80% 100%, rgba(240, 165, 0, 0.1) 0%, transparent 60%),
    var(--bg);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124, 92, 191, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 92, 191, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-video-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
}

.hero-video {
  width: 100%;
  height: auto;
  display: block;
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 1.0;
  margin-bottom: 24px;
}

.hero h1 span { color: var(--accent); }

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 40px;
  line-height: 1.7;
}

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

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-family: 'Rajdhani', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(124, 92, 191, 0.35);
}

.btn-accent {
  background: var(--accent);
  color: #0c0d16;
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: #0c0d16;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(240, 165, 0, 0.3);
}

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

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary-light);
}

.btn-sm {
  padding: 7px 16px;
  font-size: 0.875rem;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover {
  background: #c0392b;
  color: #fff;
}

/* --- Cards --- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}

.card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
}

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

.card-body { padding: 24px; }

.card-date {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.card-title {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.card-excerpt {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* --- Features --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: border-color var(--transition);
}

.feature-card:hover { border-color: var(--primary); }

.feature-icon {
  font-size: 2.2rem;
  margin-bottom: 18px;
}

.feature-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; }

/* --- Post full page --- */
.post-header {
  padding: 100px 0 60px;
  background: linear-gradient(to bottom, var(--surface) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}

.post-meta {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 16px;
}

.post-meta .tag {
  display: inline-block;
  background: rgba(124, 92, 191, 0.2);
  color: var(--primary-light);
  padding: 3px 10px;
  border-radius: 4px;
  margin-right: 10px;
  font-size: 0.8rem;
}

.post-title { font-size: clamp(2rem, 4vw, 3.2rem); }

.post-body {
  padding: 60px 0;
  max-width: 760px;
  margin: 0 auto;
}

.post-body h2, .post-body h3 { margin: 32px 0 14px; }
.post-body p { margin-bottom: 20px; color: var(--text-muted); line-height: 1.8; }
.post-body img { border-radius: var(--radius); margin: 24px 0; }
.post-body ul, .post-body ol { padding-left: 24px; margin-bottom: 20px; color: var(--text-muted); }
.post-body li { margin-bottom: 6px; }
.post-body blockquote {
  border-left: 3px solid var(--primary);
  padding: 16px 24px;
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
  color: var(--text-muted);
}

/* --- Media Gallery --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
  aspect-ratio: 16/9;
  background: var(--surface-2);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-item:hover img { transform: scale(1.05); }

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(12, 13, 22, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery-item:hover .gallery-item-overlay { opacity: 1; }

/* --- Forms --- */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-control {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 10px 14px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition);
  outline: none;
}

.form-control:focus { border-color: var(--primary); }
.form-control::placeholder { color: var(--text-muted); }

select.form-control option { background: var(--surface-2); }

/* --- Alerts / Flash Messages --- */
.alerts { padding: 16px 0 0; }

.alert {
  padding: 12px 20px;
  border-radius: var(--radius);
  margin-bottom: 12px;
  font-size: 0.9rem;
  border-left: 3px solid;
}

.alert-success { background: rgba(16, 185, 129, 0.1); border-color: var(--success); color: var(--success); }
.alert-error   { background: rgba(239, 68, 68, 0.1);  border-color: var(--danger);  color: var(--danger);  }
.alert-warning { background: rgba(245, 158, 11, 0.1); border-color: var(--warning); color: var(--warning); }
.alert-info    { background: rgba(124, 92, 191, 0.1); border-color: var(--primary); color: var(--primary-light); }

/* --- Pagination --- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all var(--transition);
}

.pagination a:hover { border-color: var(--primary); color: var(--primary-light); }
.pagination .active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* --- Page Hero (inner pages) --- */
.page-hero {
  padding: 120px 0 60px;
  text-align: center;
  background: linear-gradient(to bottom, var(--surface) 0%, transparent 100%);
  border-bottom: 1px solid var(--border);
  margin-bottom: 64px;
}

.page-hero h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); margin-bottom: 16px; }
.page-hero p { color: var(--text-muted); font-size: 1.05rem; max-width: 540px; margin: 0 auto; }

/* --- Changelog --- */
.changelog-entry {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-bottom: 20px;
}

.changelog-version {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 14px;
}

.changelog-content {
  color: var(--text-muted);
  white-space: pre-wrap;
  line-height: 1.8;
}

/* --- Community Links --- */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.community-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
}

.community-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  text-decoration: none;
}

.community-icon { font-size: 2.8rem; margin-bottom: 16px; }
.community-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.community-card p { color: var(--text-muted); font-size: 0.875rem; }

/* --- FAQ --- */
.faq-list { max-width: 760px; margin: 0 auto; }

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}

.faq-item:first-child { border-top: 1px solid var(--border); }

.faq-question {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.faq-answer { color: var(--text-muted); line-height: 1.7; }

/* --- Download --- */
.download-box {
  background: var(--surface);
  border: 1px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  max-width: 560px;
  margin: 0 auto 48px;
}

.download-box h2 { font-size: 2rem; margin-bottom: 12px; }
.download-box p { color: var(--text-muted); margin-bottom: 28px; }
.version-badge {
  display: inline-block;
  background: rgba(240, 165, 0, 0.15);
  color: var(--accent);
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}

.requirements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.req-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.req-card h4 {
  color: var(--accent);
  margin-bottom: 16px;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.req-card p { color: var(--text-muted); font-size: 0.875rem; margin-bottom: 6px; }

/* --- Register Page --- */
.register-wrap {
  max-width: 480px;
  margin: 0 auto;
  padding: 48px 0 80px;
}

.register-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.register-card h2 { font-size: 2rem; margin-bottom: 8px; }
.register-card .subtitle { color: var(--text-muted); margin-bottom: 32px; }

/* --- Footer --- */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 48px 0 28px;
  margin-top: auto;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand span { color: var(--accent); }
.footer p { color: var(--text-muted); font-size: 0.875rem; line-height: 1.7; }

.footer-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--text-muted); font-size: 0.875rem; }
.footer-col ul li a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p { color: var(--text-muted); font-size: 0.8rem; }

/* --- Divider --- */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

/* --- Lightbox --- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0, 0, 0, 0.92);
  align-items: center;
  justify-content: center;
}

.lightbox.open { display: flex; }
.lightbox img { max-width: 90vw; max-height: 90vh; border-radius: var(--radius); }
.lightbox-close {
  position: absolute;
  top: 24px; right: 32px;
  font-size: 2rem;
  color: var(--text);
  cursor: pointer;
  line-height: 1;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-video-wrap { max-width: 600px; margin: 0 auto; }
}

@media (max-width: 768px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--surface);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    gap: 0;
  }

  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; width: 100%; border-bottom: 1px solid var(--border); }
  .nav-links a:last-child { border-bottom: none; }
  .nav-toggle { display: flex; }

  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .page-section { padding: 56px 0; }
  .download-box { padding: 32px 24px; }
  .register-card { padding: 28px 20px; }
}