/* NADESpedia — Luxury Futuristic Makeover v2.0
   Fresh · Elegant · Futuristic
   ==================================== */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg: #0a0b0f;
  --bg-2: #101218;
  --surface: #151821;
  --card: #1a1f2e;
  --card-hover: #20263790;
  --ink: #e8eaf0;
  --muted: #8892a6;
  --brand: #10b981;
  --brand-dark: #059669;
  --brand-glow: rgba(16, 185, 129, 0.15);
  --accent: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --gold: #f0b429;
  --line: #252b3d;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px var(--brand-glow);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  overflow-x: hidden;
}

/* Ambient background glow */
body::before {
  content: '';
  position: fixed;
  top: -20%; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(ellipse, var(--brand-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* === HEADER === */
.top {
  background: rgba(10, 11, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: var(--transition);
}
.nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; flex-wrap: wrap; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand .logo {
  font-size: 28px;
  filter: drop-shadow(0 0 8px var(--brand-glow));
  animation: pulse 3s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.8; } }
.brand b { font-family: 'Space Grotesk', sans-serif; font-size: 20px; font-weight: 700; color: #fff; display: block; }
.brand small { color: var(--muted); font-size: 11px; display: block; letter-spacing: 0.3px; }

.nav nav { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; }
.nav nav a {
  text-decoration: none;
  color: var(--muted);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}
.nav nav a:hover { background: var(--surface); color: var(--ink); }
.nav nav a.active { color: var(--brand); font-weight: 600; background: var(--brand-glow); }
.nav nav a.lang { border: 1px solid var(--line); color: var(--brand); font-weight: 600; }

/* CSE Search */
.cse-box { flex: 0 1 220px; min-width: 0; }
.cse-box .gsc-control-cse { padding: 0; border: none; background: transparent; font-family: inherit; }
.cse-box .gsc-search-box { display: flex; align-items: center; gap: 6px; }
.cse-box .gsc-input { padding: 4px 8px !important; border: 1px solid var(--line) !important; border-radius: var(--radius-sm) !important; background: var(--surface) !important; height: auto !important; }
.cse-box .gsc-input-box { border: none !important; }
.cse-box input.gsc-input { font-size: 13px; color: var(--ink) !important; }
.cse-box .gsc-search-button-v2 { padding: 6px 14px; border-radius: var(--radius-sm) !important; background: var(--brand) !important; color: #fff; border: none; font-size: 13px; }
.cse-box .gsc-search-button-v2 svg { fill: #fff; }
.cse-box .gcse-search { min-width: 0; }
.cse-box .gsc-control-cse .gsst_b { display: none; }

/* === HERO === */
.hero {
  background: linear-gradient(135deg, #0a0b0f 0%, #101218 40%, #0d1f17 100%);
  color: #fff;
  padding: 80px 0 64px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brand), transparent);
}
.hero-grid { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center; }
.hero-main { max-width: 800px; }
.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.12;
  font-weight: 700;
  background: linear-gradient(135deg, #fff 0%, var(--brand) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}
.hero .lead { margin: 18px 0 32px; font-size: 18px; color: #a0aac0; max-width: 700px; line-height: 1.7; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}
.btn:hover { background: var(--card-hover); border-color: var(--brand); transform: translateY(-1px); }
.btn.primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
  border: none;
  box-shadow: 0 4px 16px var(--brand-glow);
}
.btn.primary:hover { box-shadow: 0 6px 24px var(--brand-glow); transform: translateY(-2px); }

/* === STATS === */
.stats {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  min-width: 240px;
}
.stats > div { text-align: center; }
.stats b {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  color: var(--brand);
  display: block;
  text-shadow: 0 0 20px var(--brand-glow);
}
.stats span { font-size: 12px; color: var(--muted); }

/* === SECTIONS === */
section { padding: 56px 0; }
.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 32px;
  position: relative;
  padding-left: 16px;
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0; top: 4px;
  width: 4px; height: 28px;
  background: var(--brand);
  border-radius: 2px;
}

/* === WHY GRID === */
.why { background: transparent; }
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.why-grid > div {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.why-grid > div:hover { border-color: var(--brand); box-shadow: var(--shadow-glow); transform: translateY(-2px); }
.why-grid b { font-size: 16px; color: var(--brand); display: block; margin-bottom: 8px; }
.why-grid p { font-size: 14px; color: var(--muted); }

/* === ARTICLE GRID === */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  overflow: hidden;
}
.card:hover { border-color: var(--brand); box-shadow: var(--shadow-glow); transform: translateY(-3px); }
.card-img { width: 100%; height: 180px; object-fit: cover; border-radius: var(--radius-sm); margin-bottom: 16px; }
.card h3 { font-family: 'Space Grotesk', sans-serif; font-size: 18px; margin-bottom: 8px; }
.card h3 a { color: #fff; text-decoration: none; }
.card h3 a:hover { color: var(--brand); }
.card .meta { font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.card .excerpt { font-size: 14px; color: var(--muted); margin-bottom: 16px; line-height: 1.6; }
.card .btn { font-size: 13px; padding: 8px 18px; }
.more-link { text-align: center; margin-top: 32px; }
.more-link a { color: var(--brand); text-decoration: none; font-weight: 600; font-size: 16px; }
.more-link a:hover { text-decoration: underline; }

/* === OMNICOMPRESS === */
.omnicompress-wrap { background: var(--bg-2); padding: 56px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.omnicompress-container { max-width: 700px; margin: 0 auto; background: var(--card); border-radius: var(--radius); border: 1px solid var(--line); padding: 32px; box-shadow: var(--shadow); }
.omnicompress-dropzone {
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}
.omnicompress-dropzone:hover { border-color: var(--brand); background: var(--surface); box-shadow: var(--shadow-glow); }
.omnicompress-dropzone .icon-upload { font-size: 48px; display: block; margin-bottom: 12px; }
.omnicompress-dropzone h3 { font-family: 'Space Grotesk', sans-serif; color: #fff; margin-bottom: 6px; }
.omnicompress-dropzone p { color: var(--muted); font-size: 13px; }
.omnicompress-dropzone input[type=file] { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.omnicompress-controls { margin: 24px 0; }
.omnicompress-controls label { display: block; color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.omnicompress-controls select, .omnicompress-controls input[type=range] {
  width: 100%; padding: 10px;
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 14px;
}
.omnicompress-controls select:focus { outline: none; border-color: var(--brand); }
.omnicompress-controls .btn-primary {
  width: 100%; padding: 14px;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff; border: none; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 600; cursor: pointer;
  transition: var(--transition);
}
.omnicompress-controls .btn-primary:hover { box-shadow: 0 6px 24px var(--brand-glow); transform: translateY(-1px); }
.omnicompress-controls .btn-primary:disabled { opacity: 0.6; cursor: wait; }
#omnicompress-result {
  margin-top: 24px; padding: 24px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); text-align: center;
}
#omnicompress-result h3 { font-family: 'Space Grotesk', sans-serif; color: var(--brand); margin-bottom: 12px; }
.result-stats { display: flex; justify-content: space-around; margin: 16px 0; }
.result-stats > div { font-size: 13px; color: var(--muted); }
.result-stats b { display: block; font-size: 22px; color: var(--gold); margin-top: 4px; }

/* === ARTICLE DETAIL === */
.page-head h1 { font-family: 'Space Grotesk', sans-serif; font-size: 32px; color: #fff; margin-bottom: 8px; }
.page-head .meta { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.page-head img { width: 100%; max-height: 400px; object-fit: cover; border-radius: var(--radius); margin-bottom: 24px; }

.detail-body { font-size: 17px; color: var(--ink); line-height: 1.8; }
.detail-body p { margin-bottom: 16px; }
.detail-body h2, .detail-body h3 { font-family: 'Space Grotesk', sans-serif; color: #fff; margin: 24px 0 12px; }
.key-points { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 20px 20px 40px; margin: 24px 0; }
.key-points li { margin-bottom: 8px; color: var(--muted); }

.source-box { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0; }
.source-box a { padding: 10px 20px; border-radius: var(--radius-sm); text-decoration: none; font-size: 14px; font-weight: 600; transition: var(--transition); }
.source-box a.doi { background: var(--accent); color: #fff; }
.source-box a.doi:hover { background: #4f46e5; }
.source-box a.pdf { background: var(--surface); color: var(--ink); border: 1px solid var(--line); }
.source-box a.pdf:hover { border-color: var(--brand); }

/* Search box */
.searchbox {
  width: 100%; padding: 14px 20px;
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 15px;
  margin-bottom: 8px;
}
.searchbox:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-glow); }

/* === RATING & COMMENTS === */
.rate-box, .cmt-box { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin: 24px 0; }
.rate-stars { font-size: 28px; cursor: pointer; }
.rate-stars span { transition: var(--transition); }
.rate-stars span:hover { transform: scale(1.2); }
.cmt-list { margin: 16px 0; }
.cmt-item { background: var(--surface); border-radius: var(--radius-sm); padding: 14px; margin-bottom: 10px; }
.cmt-item b { color: var(--brand); }
.cmt-item small { color: var(--muted); font-size: 12px; float: right; }
.cmt-form input, .cmt-form textarea {
  width: 100%; padding: 10px;
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 14px; margin-bottom: 8px;
}
.cmt-form textarea { min-height: 80px; resize: vertical; }

/* === FOOTER === */
footer {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  padding: 40px 24px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  position: relative;
}
footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brand), transparent);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; min-width: auto; }
  .nav { flex-direction: column; align-items: flex-start; }
  .grid { grid-template-columns: 1fr; }
  .section-title { font-size: 22px; }
  .hero h1 { font-size: 28px; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand); }

/* Selection */
::selection { background: var(--brand-glow); color: var(--brand); }