:root {
  --bg: #0e0e12;
  --surface: #16161d;
  --surface2: #1e1e28;
  --border: #2a2a38;
  --accent: #55d41a;
  --accent-hover: #6aee2a;
  --btn-bg: #3d9912;
  --btn-bg-hover: #4db516;
  --text: #e8e8f0;
  --text-muted: #888899;
  --success: #4caf50;
  --nav-height: 64px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

/* NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(14,14,18,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 2rem;
}

.nav-inner {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  flex-shrink: 0;
}

.nav-logo img {
  width: 28px;
  height: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  flex: 1;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: var(--surface2);
}

.nav-links .nav-external::after {
  content: '↗';
  font-size: 0.75rem;
  margin-left: 0.2rem;
  opacity: 0.6;
}

.nav-cta {
  margin-left: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
}

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

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

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

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

.btn-lg {
  padding: 0.75rem 1.75rem;
  font-size: 1rem;
  border-radius: 10px;
}

/* MAIN CONTENT */
main {
  padding-top: var(--nav-height);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* HERO */
.hero {
  padding: 6rem 0 4rem;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 0.3rem 0.9rem;
  border-radius: 99px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

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

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* STAT BAR (below video) */
.hero-stat-bar {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  padding: 0.75rem 1.5rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stat-bar-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
}

.hero-stat-bar-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* FAQ */
.faq-section {
  padding: 3rem 0 5rem;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.15s;
}

.faq-item[open] {
  border-color: var(--accent);
}

.faq-item summary {
  padding: 1.1rem 1.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  border-top: 1px solid var(--border);
}

.faq-answer p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 1rem;
}

.hero-media {
  margin-top: 4rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-media video,
.hero-media img {
  width: 100%;
  display: block;
}

/* FEATURES */
.features {
  padding: 5rem 0;
}

.section-label {
  text-align: center;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title {
  text-align: center;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-sub {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto 3rem;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin: 2rem 0 1rem;
  font-weight: 600;
}

.section-subtitle:first-of-type {
  margin-top: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.2s;
}

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

.feature-icon {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* MODS SECTION / PAGE */
.mods-section {
  padding: 5rem 0;
}

.mods-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.mod-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.15s;
  display: flex;
  flex-direction: column;
}

.mod-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.mod-card-featured {
  border-color: var(--accent);
}

.mod-card-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--surface2);
}

.mod-card-img-placeholder {
  width: 100%;
  height: 160px;
  background: var(--surface2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.mod-card-body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.mod-card-body h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.mod-card-body p {
  color: var(--text-muted);
  font-size: 0.85rem;
  flex: 1;
  margin-bottom: 1rem;
}

.mod-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.mod-card-meta a {
  font-size: 0.8rem;
  font-weight: 600;
}

.mod-downloads {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* MODS TOOLBAR */
.mods-toolbar {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.mod-search {
  flex: 1;
  min-width: 0;
  padding: 0.6rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

.mod-search::placeholder { color: var(--text-muted); }
.mod-search:focus { border-color: var(--accent); }

.mod-sort {
  padding: 0.6rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  cursor: pointer;
  outline: none;
  transition: border-color 0.15s;
}

.mod-sort:focus { border-color: var(--accent); }

/* LOADING / ERROR */
.state-loading,
.state-error {
  text-align: center;
  padding: 4rem;
  color: var(--text-muted);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Smooth accordion transition */
.faq-answer { animation: fadeIn 0.15s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* STEPS */
.steps {
  padding: 5rem 0;
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 700px;
  margin: 2.5rem auto 0;
}

.step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface2);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.step-content p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.step-content code {
  font-family: 'Fira Code', monospace;
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85rem;
}

/* CTA STRIP */
.cta-strip {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 4rem 0;
  text-align: center;
}

.cta-strip h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.cta-strip p {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.cta-strip .btn-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* FOOTER */
footer {
  padding: 2.5rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

footer a {
  color: var(--text-muted);
}

footer a:hover {
  color: var(--text);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 1rem;
  list-style: none;
}

/* PAGE HEADER */
.page-header {
  padding: 4rem 0 2rem;
  text-align: center;
}

.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.page-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto;
}

/* RESPONSIVE */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding: 3rem 0 2rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .step { flex-direction: column; gap: 0.75rem; }
}