/* Reset & Base Variables */
:root {
  --bg-deep: #0b0914;
  --bg-surface: #151125;
  --bg-panel: rgba(25, 20, 45, 0.6);
  --text-main: #f0f0f5;
  --text-dim: #9aa0c0;
  --accent-orange: #ff8a00;
  --accent-orange-glow: rgba(255, 138, 0, 0.5);
  --accent-blue: #00e1ff;
  --accent-blue-glow: rgba(0, 225, 255, 0.5);
  --border-color: rgba(255, 255, 255, 0.08);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --nav-height: 70px;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* Background Effects */
body::before, body::after {
  content: "";
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  z-index: -1;
  opacity: 0.15;
}
body::before {
  top: -10vw;
  left: -10vw;
  width: 40vw;
  height: 40vw;
  background: var(--accent-orange);
}
body::after {
  bottom: -10vw;
  right: -10vw;
  width: 40vw;
  height: 40vw;
  background: var(--accent-blue);
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}

/* Animations */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 10px var(--accent-orange-glow); }
  50% { box-shadow: 0 0 25px var(--accent-orange-glow); }
  100% { box-shadow: 0 0 10px var(--accent-orange-glow); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-orange), #e52e71);
  color: #fff;
  box-shadow: 0 4px 15px rgba(255, 138, 0, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 138, 0, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}
.btn-outline:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  box-shadow: 0 0 15px rgba(0, 225, 255, 0.2);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 18px;
}
.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}
.btn svg {
  margin-right: 8px;
}

/* Navigation */
.nav-wrap {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(11, 9, 20, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.nav-links {
  display: flex;
  gap: 30px;
  align-items: center;
}

.nav-link {
  font-size: 15px;
  color: var(--text-dim);
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
  transition: all 0.3s;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  color: var(--accent-orange);
  background: rgba(255, 138, 0, 0.1);
}

/* Sections */
.section {
  padding: 100px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-head {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 225, 255, 0.1);
  color: var(--accent-blue);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
  border: 1px solid rgba(0, 225, 255, 0.2);
}

.section-title {
  font-size: 36px;
  margin-bottom: 16px;
  color: #fff;
}

.section-desc {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto;
}

/* Hero Index */
.hero {
  padding-top: calc(var(--nav-height) + 60px);
  padding-bottom: 60px;
  display: flex;
  align-items: center;
  gap: 60px;
  min-height: 80vh;
}

.hero-content {
  flex: 1;
}

.hero-visual {
  flex: 1;
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-graphic {
  width: 100%;
  max-width: 500px;
  height: auto;
  animation: float 6s ease-in-out infinite;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255, 138, 0, 0.1);
  border: 1px solid rgba(255, 138, 0, 0.3);
  color: var(--accent-orange);
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 56px;
  line-height: 1.1;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #fff, var(--text-dim));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 40px;
  max-width: 500px;
}

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

/* Features Grid */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.feat-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  padding: 32px;
  border-radius: 24px;
  backdrop-filter: blur(10px);
  transition: all 0.3s;
}

.feat-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(25, 20, 45, 0.8);
}

.feat-icon {
  width: 50px;
  height: 50px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feat-card:nth-child(odd) .feat-icon {
  background: rgba(255, 138, 0, 0.1);
  color: var(--accent-orange);
}
.feat-card:nth-child(even) .feat-icon {
  background: rgba(0, 225, 255, 0.1);
  color: var(--accent-blue);
}

.feat-title {
  font-size: 20px;
  margin-bottom: 12px;
  color: #fff;
}

.feat-desc {
  font-size: 15px;
  color: var(--text-dim);
}

/* Platform Cards */
.plat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.plat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s;
}
.plat-card:hover {
  border-color: var(--accent-blue);
}
.plat-card.featured {
  border-color: var(--accent-orange);
  position: relative;
  overflow: hidden;
}
.plat-card.featured::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-orange), #e52e71);
}

.plat-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
  color: #fff;
}
.plat-title {
  font-size: 20px;
  margin-bottom: 8px;
  color: #fff;
}
.plat-desc {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 24px;
  height: 40px;
}
.plat-card .btn {
  width: 100%;
}

/* Deep Features */
.deep-row {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 100px;
}
.deep-row.rev {
  flex-direction: row-reverse;
}
.deep-content {
  flex: 1;
}
.deep-visual {
  flex: 1;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.deep-visual::before {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 200px; height: 200px;
  background: var(--accent-blue);
  filter: blur(80px);
  opacity: 0.2;
  border-radius: 50%;
}
.deep-title {
  font-size: 32px;
  margin-bottom: 20px;
  color: #fff;
}
.deep-desc {
  font-size: 17px;
  color: var(--text-dim);
  margin-bottom: 24px;
}

/* Reviews */
.rev-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.rev-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
}
.rev-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}
.rev-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-blue);
  border: 1px solid var(--border-color);
}
.rev-info h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 4px;
}
.rev-stars {
  color: var(--accent-orange);
  font-size: 14px;
}
.rev-text {
  font-size: 15px;
  color: var(--text-dim);
  font-style: italic;
}

/* Stats Box */
.stats-box {
  background: linear-gradient(135deg, rgba(25, 20, 45, 0.8), rgba(11, 9, 20, 0.9));
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 60px 40px;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 30px;
  text-align: center;
}
.stat-item {
  flex: 1;
  min-width: 200px;
}
.stat-num {
  font-size: 48px;
  font-weight: 800;
  color: var(--accent-blue);
  margin-bottom: 8px;
}
.stat-lbl {
  font-size: 16px;
  color: var(--text-dim);
}

/* Comparison Table */
.cmp-wrapper {
  overflow-x: auto;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 24px;
}
.cmp-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}
.cmp-table th, .cmp-table td {
  padding: 20px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}
.cmp-table th:first-child, .cmp-table td:first-child {
  text-align: left;
}
.cmp-table th {
  color: #fff;
  font-size: 16px;
}
.cmp-table td {
  color: var(--text-dim);
  font-size: 15px;
}
.cmp-table .hl {
  color: var(--accent-orange);
  font-weight: 600;
  background: rgba(255, 138, 0, 0.05);
}
.cmp-table tr:last-child td {
  border-bottom: none;
}
.cmp-table svg {
  width: 24px; height: 24px;
}
.icon-check { color: var(--accent-blue); }
.icon-cross { color: #555; }

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: all 0.3s;
}
.faq-q {
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  user-select: none;
}
.faq-chevron {
  transition: transform 0.3s;
  color: var(--accent-orange);
}
.faq-a {
  padding: 0 24px;
  max-height: 0;
  opacity: 0;
  transition: all 0.3s;
  color: var(--text-dim);
  font-size: 15px;
}
.faq-item.open {
  border-color: var(--accent-orange);
  background: rgba(255, 138, 0, 0.05);
}
.faq-item.open .faq-chevron {
  transform: rotate(180deg);
}
.faq-item.open .faq-a {
  padding: 0 24px 24px;
  max-height: 500px;
  opacity: 1;
}

/* CTA */
.cta-box {
  background: linear-gradient(135deg, rgba(255, 138, 0, 0.2), rgba(0, 225, 255, 0.1));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  padding: 80px 40px;
  text-align: center;
}
.cta-title {
  font-size: 40px;
  color: #fff;
  margin-bottom: 20px;
}
.cta-desc {
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.site-footer {
  background: #06050a;
  padding: 60px 24px 40px;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.05);
  margin-top: 60px;
}
.footer-security {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  background: rgba(0, 225, 255, 0.05);
  border: 1px solid rgba(0, 225, 255, 0.2);
  border-radius: 30px;
  color: var(--accent-blue);
  font-weight: 600;
  margin-bottom: 30px;
}
.footer-note {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.8;
}

/* Download Page Specifics */
.dl-hero {
  padding-top: calc(var(--nav-height) + 80px);
  text-align: center;
}
.dl-main-box {
  background: linear-gradient(180deg, var(--bg-surface), #0b0914);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  padding: 60px 40px;
  max-width: 800px;
  margin: 0 auto 60px;
  position: relative;
  overflow: hidden;
}
.dl-main-box::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 6px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-blue));
}
.dl-icon {
  width: 80px; height: 80px;
  margin: 0 auto 24px;
  color: #fff;
}
.dl-box-title {
  font-size: 36px;
  color: #fff;
  margin-bottom: 16px;
}
.dl-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  color: var(--text-dim);
  margin-bottom: 40px;
  font-size: 15px;
}
.dl-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* Install Guide Steps */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}
.guide-step {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 30px 24px;
  position: relative;
}
.step-num {
  position: absolute;
  top: -20px;
  left: 24px;
  width: 40px; height: 40px;
  background: var(--accent-orange);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 4px 10px rgba(255, 138, 0, 0.3);
}
.step-title {
  font-size: 18px;
  color: #fff;
  margin: 16px 0 12px;
}
.step-desc {
  font-size: 14px;
  color: var(--text-dim);
}

/* System Requirements */
.req-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.req-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
}
.req-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
}
.req-list {
  list-style: none;
}
.req-list li {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding-bottom: 8px;
}
.req-list li span:last-child {
  color: #fff;
}

/* Timeline */
.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: 24px;
  width: 2px;
  background: var(--border-color);
}
.tl-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 40px;
}
.tl-dot {
  position: absolute;
  left: 17px; top: 0;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent-blue);
  border: 4px solid var(--bg-deep);
}
.tl-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
}
.tl-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.tl-ver {
  font-size: 18px; color: #fff; font-weight: 700;
}
.tl-date {
  font-size: 14px; color: var(--accent-orange);
}
.tl-desc {
  font-size: 15px; color: var(--text-dim);
}

/* SEO Article Page */
.article-hero {
  padding-top: calc(var(--nav-height) + 60px);
  text-align: center;
  padding-bottom: 60px;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}
.tag-cloud span {
  padding: 6px 16px;
  background: rgba(255,255,255,0.05);
  border-radius: 20px;
  font-size: 14px;
  color: var(--text-dim);
}
.article-wrap {
  display: flex;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.article-main {
  flex: 1;
}
.article-sidebar {
  width: 320px;
  flex-shrink: 0;
}
@media (max-width: 900px) {
  .article-wrap { flex-direction: column; }
  .article-sidebar { width: 100%; }
}
.art-sec {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  margin-bottom: 30px;
}
.art-sec h2 {
  font-size: 28px; color: #fff; margin-bottom: 24px;
}
.art-sec h3 {
  font-size: 20px; color: var(--accent-blue); margin: 24px 0 16px;
}
.art-sec p {
  margin-bottom: 16px; font-size: 16px;
}
.art-sec ul {
  margin-left: 20px; margin-bottom: 16px;
}
.art-sec li {
  margin-bottom: 8px;
}
.side-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 24px;
  margin-bottom: 24px;
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}
.side-title {
  font-size: 18px; color: #fff; margin-bottom: 16px;
  padding-bottom: 12px; border-bottom: 1px solid var(--border-color);
}
.side-link {
  display: block;
  padding: 10px 0;
  color: var(--text-dim);
  border-bottom: 1px dashed rgba(255,255,255,0.05);
}
.side-link:hover {
  color: var(--accent-orange);
}
.side-dl .btn {
  width: 100%; margin-bottom: 12px;
}

@media (max-width: 768px) {
  .hero { flex-direction: column; text-align: center; }
  .hero-actions { justify-content: center; }
  .deep-row, .deep-row.rev { flex-direction: column; }
  .section-title, .hero-title { font-size: 32px; }
  .nav-links { display: none; } /* Simplified mobile nav */
}