/* ===========================================
   JavaApp Theme - Main Stylesheet
   Colors: Black, White, Blue gradient
   Font: Poppins / Roboto
   =========================================== */

:root {
  --ja-bg: #ffffff;
  --ja-fg: #0b1220;
  --ja-muted: #5b6478;
  --ja-border: #e6e9ef;
  --ja-card: #ffffff;
  --ja-blue-1: #1e3a8a;
  --ja-blue-2: #2563eb;
  --ja-blue-3: #3b82f6;
  --ja-gradient: linear-gradient(135deg, #0b1220 0%, #1e3a8a 50%, #3b82f6 100%);
  --ja-shadow: 0 6px 24px rgba(15, 23, 42, 0.08);
  --ja-radius: 12px;
  --ja-max: 1200px;
  --ja-font: 'Poppins', 'Roboto', system-ui, -apple-system, Segoe UI, sans-serif;
}

[data-theme="dark"] {
  --ja-bg: #0b1220;
  --ja-fg: #f1f5f9;
  --ja-muted: #94a3b8;
  --ja-border: #1f2a44;
  --ja-card: #111a30;
  --ja-shadow: 0 6px 24px rgba(0,0,0,0.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--ja-font);
  background: var(--ja-bg);
  color: var(--ja-fg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background .25s ease, color .25s ease;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ja-blue-2); text-decoration: none; transition: color .2s; }
a:hover { color: var(--ja-blue-3); }
h1,h2,h3,h4 { font-weight: 700; line-height: 1.25; margin: 0 0 .6em; color: var(--ja-fg); }
h1 { font-size: 2.2rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }

.container { max-width: var(--ja-max); margin: 0 auto; padding: 0 20px; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--ja-bg);
  border-bottom: 1px solid var(--ja-border);
  backdrop-filter: saturate(180%) blur(8px);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
}
.site-logo a {
  font-weight: 800; font-size: 1.6rem; letter-spacing: -0.5px;
  background: var(--ja-gradient);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.site-logo span { color: var(--ja-blue-3); }

.main-nav ul { list-style: none; display: flex; gap: 22px; margin: 0; padding: 0; }
.main-nav a { color: var(--ja-fg); font-weight: 500; font-size: .95rem; }
.main-nav a:hover { color: var(--ja-blue-2); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle, .menu-toggle {
  background: transparent; border: 1px solid var(--ja-border);
  color: var(--ja-fg); width: 38px; height: 38px; border-radius: 50%;
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
  transition: all .2s;
}
.theme-toggle:hover, .menu-toggle:hover { border-color: var(--ja-blue-2); color: var(--ja-blue-2); }
.menu-toggle { display: none; }

/* ===== Hero ===== */
.hero {
  background: var(--ja-gradient);
  color: #fff;
  padding: 70px 0 90px;
  position: relative; overflow: hidden;
}
.hero::after{
  content:""; position:absolute; inset:0;
  background: radial-gradient(1200px 400px at 80% -10%, rgba(255,255,255,.18), transparent 60%);
  pointer-events:none;
}
.hero h1 { color:#fff; font-size: clamp(2rem, 4vw, 3rem); max-width: 800px; }
.hero p { color: rgba(255,255,255,.85); max-width: 700px; font-size: 1.1rem; }
.hero .btn {
  display:inline-block; margin-top: 14px;
  background: #fff; color: var(--ja-blue-1);
  padding: 12px 24px; border-radius: 999px; font-weight: 600;
  box-shadow: var(--ja-shadow);
}
.hero .btn:hover { transform: translateY(-2px); }

.hero-slider { display:grid; grid-template-columns: 2fr 1fr 1fr; gap:18px; margin-top:36px; }
.hero-card {
  background: rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.18);
  border-radius: var(--ja-radius); overflow:hidden; backdrop-filter: blur(6px);
  transition: transform .3s;
}
.hero-card:hover { transform: translateY(-4px); }
.hero-card .thumb { aspect-ratio: 16/9; background:#1e293b; overflow:hidden; }
.hero-card .thumb img { width:100%; height:100%; object-fit:cover; }
.hero-card .body { padding: 14px 16px; }
.hero-card .cat { font-size:.75rem; text-transform:uppercase; letter-spacing:1px; color:#bfdbfe; }
.hero-card h3 { color:#fff; font-size: 1.05rem; margin: 6px 0 0; }
.hero-card.lg h3 { font-size: 1.4rem; }

/* ===== Layout ===== */
.layout { display:grid; grid-template-columns: 1fr 320px; gap: 36px; padding: 50px 0; }

/* ===== Section heading ===== */
.section-title {
  display:flex; align-items:center; gap:12px;
  font-size:1.4rem; margin-bottom: 22px;
  position:relative;
}
.section-title::before {
  content:""; width: 6px; height: 24px; border-radius: 4px;
  background: var(--ja-gradient);
}

/* ===== Posts grid ===== */
.posts-grid { display:grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.post-card {
  background: var(--ja-card); border:1px solid var(--ja-border);
  border-radius: var(--ja-radius); overflow:hidden;
  box-shadow: var(--ja-shadow); transition: transform .25s, box-shadow .25s;
  display:flex; flex-direction:column;
}
.post-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(37,99,235,.12); }
.post-card .thumb { aspect-ratio: 16/9; background: #e2e8f0; overflow:hidden; }
.post-card .thumb img { width:100%; height:100%; object-fit:cover; transition: transform .4s; }
.post-card:hover .thumb img { transform: scale(1.04); }
.post-card .body { padding: 16px 18px 18px; flex:1; display:flex; flex-direction:column; }
.post-card .cat {
  font-size:.72rem; text-transform:uppercase; letter-spacing:1px;
  color: var(--ja-blue-2); font-weight:600;
}
.post-card h2, .post-card h3 { font-size: 1.1rem; margin: 6px 0 8px; }
.post-card h2 a, .post-card h3 a { color: var(--ja-fg); }
.post-card h2 a:hover, .post-card h3 a:hover { color: var(--ja-blue-2); }
.post-card .meta {
  margin-top:auto; font-size:.8rem; color: var(--ja-muted);
  display:flex; gap:10px; align-items:center; padding-top: 10px;
}

/* ===== Trending ===== */
.trending-list { display:grid; grid-template-columns: repeat(3, 1fr); gap:18px; margin-top: 40px; }
.trending-item {
  display:flex; gap:12px; padding:12px;
  background: var(--ja-card); border:1px solid var(--ja-border);
  border-radius: var(--ja-radius);
}
.trending-item .num {
  font-size: 1.6rem; font-weight: 800;
  background: var(--ja-gradient); -webkit-background-clip:text; background-clip:text; color:transparent;
  min-width: 28px;
}
.trending-item h4 { font-size:.95rem; margin:0; }
.trending-item h4 a { color: var(--ja-fg); }

/* ===== Sidebar ===== */
.sidebar .widget {
  background: var(--ja-card); border:1px solid var(--ja-border);
  border-radius: var(--ja-radius); padding: 20px; margin-bottom: 22px;
}
.sidebar .widget-title {
  font-size: 1rem; text-transform: uppercase; letter-spacing: 1px;
  margin: 0 0 14px; padding-bottom: 10px; border-bottom: 2px solid var(--ja-border);
}
.sidebar ul { list-style:none; padding:0; margin:0; }
.sidebar li { padding: 8px 0; border-bottom: 1px dashed var(--ja-border); }
.sidebar li:last-child { border-bottom:none; }
.sidebar a { color: var(--ja-fg); font-size:.95rem; }
.sidebar a:hover { color: var(--ja-blue-2); }

.ads-box {
  background: var(--ja-gradient); color:#fff; text-align:center;
  padding: 40px 16px; border-radius: var(--ja-radius);
  font-weight: 600; letter-spacing: .5px;
}

.newsletter-box {
  background: var(--ja-gradient); color:#fff;
  padding: 26px 22px; border-radius: var(--ja-radius); text-align:center;
}
.newsletter-box h3 { color:#fff; }
.newsletter-box input[type=email]{
  width:100%; padding:11px 14px; border-radius:8px; border:none; margin-bottom:10px; font-family:inherit;
}
.newsletter-box button {
  width:100%; padding:11px; border:none; border-radius:8px;
  background:#fff; color: var(--ja-blue-1); font-weight:700; cursor:pointer;
}

/* ===== Single ===== */
.single-post { background: var(--ja-card); border:1px solid var(--ja-border);
  border-radius: var(--ja-radius); padding: 30px; box-shadow: var(--ja-shadow); }
.single-post .featured { border-radius: var(--ja-radius); overflow:hidden; margin-bottom: 24px; }
.single-post h1 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
.post-meta { color: var(--ja-muted); font-size:.9rem; display:flex; gap:14px; flex-wrap:wrap; margin-bottom: 20px; }
.entry-content p { font-size: 1.05rem; }
.entry-content img { border-radius: 10px; margin: 18px 0; }
.entry-content blockquote {
  border-left: 4px solid var(--ja-blue-2);
  padding: 6px 18px; margin: 20px 0; color: var(--ja-muted); font-style: italic;
  background: rgba(37,99,235,.06); border-radius: 6px;
}
.entry-content pre {
  background: #0b1220; color:#e2e8f0; padding:16px; border-radius:10px; overflow:auto;
}

/* ===== Breadcrumbs ===== */
.breadcrumbs {
  font-size: .85rem; color: var(--ja-muted); padding: 18px 0 0;
}
.breadcrumbs a { color: var(--ja-blue-2); }
.breadcrumbs span.sep { margin: 0 6px; opacity: .6; }

/* ===== Social share ===== */
.social-share { display:flex; gap:10px; margin: 24px 0; flex-wrap:wrap; }
.social-share a {
  display:inline-flex; align-items:center; gap:6px; padding:8px 14px;
  border-radius: 999px; color:#fff; font-size:.85rem; font-weight:500;
}
.share-tw { background:#1da1f2; }
.share-fb { background:#1877f2; }
.share-li { background:#0a66c2; }
.share-wa { background:#25d366; }

/* ===== Pagination ===== */
.pagination, .nav-links {
  display:flex; gap:8px; justify-content:center; margin: 30px 0; flex-wrap:wrap;
}
.pagination a, .pagination span,
.nav-links a, .nav-links span {
  padding: 8px 14px; border-radius: 8px; border:1px solid var(--ja-border);
  color: var(--ja-fg); font-weight:500;
}
.pagination .current, .nav-links .current {
  background: var(--ja-gradient); color:#fff; border-color: transparent;
}

/* ===== Search ===== */
.search-form { display:flex; gap:8px; }
.search-form input {
  flex:1; padding: 10px 14px; border:1px solid var(--ja-border);
  border-radius: 8px; background: var(--ja-bg); color: var(--ja-fg); font-family: inherit;
}
.search-form button {
  padding: 10px 18px; border:none; border-radius: 8px;
  background: var(--ja-gradient); color:#fff; font-weight:600; cursor:pointer;
}

/* ===== 404 ===== */
.error-404 { text-align:center; padding: 80px 20px; }
.error-404 h1 { font-size: 6rem; background: var(--ja-gradient);
  -webkit-background-clip:text; background-clip:text; color:transparent; margin:0; }

/* ===== Footer ===== */
.site-footer {
  background: #0b1220; color: #cbd5e1; padding: 50px 0 20px; margin-top: 60px;
}
.footer-grid { display:grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; }
.footer-grid h4 { color:#fff; font-size: 1rem; margin-bottom: 14px; }
.footer-grid ul { list-style:none; padding:0; margin:0; }
.footer-grid li { padding: 5px 0; }
.footer-grid a { color:#cbd5e1; font-size:.92rem; }
.footer-grid a:hover { color: var(--ja-blue-3); }
.footer-bottom {
  border-top: 1px solid #1f2a44; margin-top: 30px; padding-top: 18px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-size:.85rem; color:#94a3b8;
}
.social-icons { display:flex; gap: 10px; margin-top: 12px; }
.social-icons a {
  width:36px; height:36px; border-radius:50%;
  background: rgba(255,255,255,.08); display:inline-flex; align-items:center; justify-content:center;
  color:#fff;
}
.social-icons a:hover { background: var(--ja-blue-2); }

/* ===== Animations ===== */
@keyframes fadeUp { from { opacity:0; transform: translateY(12px); } to { opacity:1; transform:none; } }
.post-card, .hero-card, .trending-item { animation: fadeUp .5s ease both; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-slider { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; }
  .trending-list { grid-template-columns: 1fr; }
  .menu-toggle { display: inline-flex; }
  .main-nav {
    position:absolute; top:100%; left:0; right:0;
    background: var(--ja-bg); border-bottom: 1px solid var(--ja-border);
    display:none; padding: 16px 20px;
  }
  .main-nav.open { display:block; }
  .main-nav ul { flex-direction: column; gap: 12px; }
  .hero-slider { grid-template-columns: 1fr; }
  .posts-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}