:root {
  --prism-bg: #0b0f19;
  --prism-surface: #161e2d;
  --prism-surface-lite: #1f2937;
  --prism-primary: #00f2ff; /* Neon Cyan */
  --prism-primary-glow: rgba(0, 242, 255, 0.4);
  --prism-secondary: #7000ff; /* Electric Violet */
  --prism-secondary-glow: rgba(112, 0, 255, 0.3);
  --prism-accent: #00ff9d; /* Matrix Green */
  --prism-accent-glow: rgba(0, 255, 157, 0.2);
  --prism-text: #f9fafb;
  --prism-text-dim: #9ca3af;
  --prism-border: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(22, 30, 45, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--prism-bg);
  color: var(--prism-text);
  line-height: 1.6;
  overflow-x: hidden;
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Animations */
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--prism-border);
}

.nav-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--prism-text);
  font-weight: 700;
  font-size: 1.25rem;
}

.brand-icon {
  width: 32px;
  height: 32px;
  filter: drop-shadow(0 0 8px var(--prism-primary-glow));
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--prism-text-dim);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 6px 12px;
  border-radius: 8px;
}

.nav-link:hover {
  color: var(--prism-primary);
  background: rgba(0, 242, 255, 0.05);
}

.nav-link.on {
  color: var(--prism-primary);
  background: rgba(0, 242, 255, 0.1);
  box-shadow: inset 0 0 0 1px rgba(0, 242, 255, 0.2);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  font-size: 1rem;
  gap: 8px;
}

.btn-primary {
  background: var(--prism-primary);
  color: var(--prism-bg);
  box-shadow: 0 4px 20px var(--prism-primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--prism-primary-glow);
  filter: brightness(1.1);
}

.btn-outline {
  background: transparent;
  color: var(--prism-text);
  box-shadow: inset 0 0 0 1px var(--prism-border);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 0 0 1px var(--prism-text-dim);
}

.btn-ghost {
  background: transparent;
  color: var(--prism-text-dim);
}

.btn-ghost:hover {
  color: var(--prism-text);
  background: rgba(255, 255, 255, 0.05);
}

/* Sections */
.sec {
  padding: 100px 0;
}

.sec-dark { background: var(--prism-bg); }
.sec-surface { background: var(--prism-surface); }

.sec-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.sec-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  background: rgba(0, 242, 255, 0.1);
  color: var(--prism-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.sec-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sec-desc {
  color: var(--prism-text-dim);
  font-size: 1.1rem;
}

/* Hero */
.hero {
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -5%;
  width: 40%;
  height: 50%;
  background: radial-gradient(circle, var(--prism-secondary-glow) 0%, transparent 70%);
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 40%;
  height: 50%;
  background: radial-gradient(circle, var(--prism-primary-glow) 0%, transparent 70%);
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-h1 {
  font-size: 4rem;
  line-height: 1.1;
  font-weight: 900;
  margin-bottom: 24px;
}

.hero-h1 span {
  display: block;
  background: linear-gradient(to right, var(--prism-primary), #fff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-p {
  font-size: 1.25rem;
  color: var(--prism-text-dim);
  margin-bottom: 40px;
  max-width: 540px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-trust {
  display: flex;
  gap: 32px;
  align-items: center;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--prism-text-dim);
  font-size: 0.9rem;
}

.trust-icon {
  width: 20px;
  height: 20px;
  color: var(--prism-accent);
}

.hero-visual {
  position: relative;
}

.prism-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  animation: float 6s ease-in-out infinite;
}

.pc-row {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.pc-item {
  flex: 1;
  background: var(--prism-surface-lite);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
}

.pc-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 8px;
}

.pc-label {
  font-size: 0.75rem;
  color: var(--prism-text-dim);
  text-transform: uppercase;
}

.pc-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

/* Features */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feat-card {
  background: var(--prism-surface);
  border: 1px solid var(--prism-border);
  border-radius: 20px;
  padding: 40px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feat-card:hover {
  transform: translateY(-8px);
  border-color: var(--prism-primary-glow);
  background: var(--prism-surface-lite);
}

.feat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 4px; height: 0;
  background: var(--prism-primary);
  transition: height 0.3s ease;
}

.feat-card:hover::before { height: 100%; }

.feat-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 24px;
  color: var(--prism-primary);
}

.feat-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feat-desc {
  color: var(--prism-text-dim);
  font-size: 0.95rem;
}

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

.plat-card {
  background: var(--prism-surface);
  border-radius: 16px;
  padding: 30px;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid var(--prism-border);
}

.plat-card.featured {
  background: linear-gradient(135deg, var(--prism-surface) 0%, #1a2235 100%);
  border-color: var(--prism-primary-glow);
  transform: scale(1.05);
}

.plat-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 16px;
}

.plat-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.plat-ver {
  font-size: 0.85rem;
  color: var(--prism-text-dim);
  margin-bottom: 20px;
}

/* Reviews */
.rev-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.rev-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 30px;
  border-radius: 20px;
}

.rev-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  color: #fbbf24;
}

.rev-text {
  font-style: italic;
  margin-bottom: 20px;
  color: var(--prism-text);
}

.rev-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--prism-primary), var(--prism-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--prism-surface);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  border: 1px solid var(--prism-border);
}

.faq-q {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.3s ease;
}

.faq-q:hover { background: var(--prism-surface-lite); }

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
}

.faq-item.open .faq-icon { transform: rotate(180deg); }
.faq-item.open .faq-q { color: var(--prism-primary); }

.faq-a {
  max-height: 0;
  transition: max-height 0.3s ease-out;
  background: rgba(255, 255, 255, 0.02);
}

.faq-item.open .faq-a { max-height: 500px; }

.faq-a-inner {
  padding: 0 24px 24px;
  color: var(--prism-text-dim);
  font-size: 0.95rem;
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--prism-secondary) 0%, var(--prism-primary) 100%);
  border-radius: 30px;
  padding: 80px 40px;
  text-align: center;
  margin: 60px 0;
}

.cta-title { font-size: 2.5rem; font-weight: 800; margin-bottom: 16px; }
.cta-desc { font-size: 1.2rem; opacity: 0.9; margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* Footer */
.footer {
  padding: 60px 0;
  background: #060910;
  border-top: 1px solid var(--prism-border);
  text-align: center;
}

.footer-security {
  color: var(--prism-accent);
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.footer-note {
  color: var(--prism-text-dim);
  font-size: 0.85rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Download Page Specific */
.dl-hero { text-align: center; padding: 80px 0 40px; }
.dl-card-main {
  background: var(--prism-surface);
  border-radius: 24px;
  padding: 48px;
  max-width: 800px;
  margin: 0 auto 60px;
  border: 1px solid var(--prism-primary-glow);
  box-shadow: 0 0 40px rgba(0, 242, 255, 0.1);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.dl-info-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 24px 0; }
.dl-info-item { display: flex; flex-direction: column; gap: 4px; }
.dl-info-label { font-size: 0.75rem; color: var(--prism-text-dim); text-transform: uppercase; }
.dl-info-val { font-weight: 700; font-size: 0.95rem; }

/* Article Page Specific */
.art-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
}

.art-body h2 { font-size: 1.75rem; margin: 40px 0 20px; color: var(--prism-primary); }
.art-body p { margin-bottom: 20px; color: var(--prism-text-dim); }
.art-body ul { margin-bottom: 24px; padding-left: 20px; color: var(--prism-text-dim); }
.art-body li { margin-bottom: 10px; }

.sidebar-box {
  background: var(--prism-surface);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
  border: 1px solid var(--prism-border);
  position: sticky;
  top: 100px;
}

.sb-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }

/* Responsive */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-h1 { font-size: 3rem; }
  .hero-p { margin: 0 auto 40px; }
  .hero-btns { justify-content: center; }
  .hero-trust { justify-content: center; }
  .feat-grid, .rev-grid, .plat-grid { grid-template-columns: repeat(2, 1fr); }
  .dl-card-main { grid-template-columns: 1fr; text-align: center; }
  .art-layout { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .feat-grid, .rev-grid, .plat-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; } /* Simplified for mobile */
  .hero-h1 { font-size: 2.5rem; }
}