/* =====================================================
   NeetroX — Global Stylesheet
   Dark · Minimal · Premium
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

/* ── Tokens ─────────────────────────────────────────── */
:root {
  --bg:           #0A0F1E;
  --bg-2:         #0D1321;
  --card:         #111827;
  --card-hover:   #151f32;
  --border:       rgba(255,255,255,0.07);
  --border-focus: rgba(0,212,255,0.4);

  --text:         #FFFFFF;
  --text-muted:   #A0AEC0;
  --text-dim:     #4A5568;

  --accent:       #00D4FF;
  --accent-dim:   rgba(0,212,255,0.12);

  --gradient: linear-gradient(135deg, #87F5F5 0%, #FFE5F1 50%, #F042FF 100%);
  --gradient-glow: linear-gradient(135deg, rgba(135,245,245,0.15) 0%, rgba(255,229,241,0.08) 50%, rgba(240,66,255,0.15) 100%);

  --radius-sm:  6px;
  --radius:     10px;
  --radius-lg:  16px;

  --font:  'Space Grotesk', sans-serif;
  --mono:  'Space Mono', monospace;

  --transition: 200ms ease;
  --max-w: 1120px;
}

/* ── Reset ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: var(--font); }
ul { list-style: none; }

/* ── Typography ─────────────────────────────────────── */
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; }
h3 { font-size: 1.125rem; font-weight: 600; line-height: 1.3; }
p  { color: var(--text-muted); line-height: 1.7; }

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Layout helpers ─────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 20px; height: 1px;
  background: var(--accent);
}

.section-heading { margin-bottom: 48px; }
.section-heading p { margin-top: 12px; max-width: 520px; font-size: 1rem; }

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #0A0F1E;
  font-weight: 700;
}
.btn-primary:hover {
  opacity: 0.88;
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(240,66,255,0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.04);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(0,212,255,0.3);
}
.btn-outline:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding: 10px 16px;
}
.btn-ghost:hover { color: var(--text); }

.btn-sm { padding: 8px 16px; font-size: 0.8rem; }
.btn-lg { padding: 15px 32px; font-size: 1rem; }

/* ── Navbar ──────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: all 300ms ease;
}

.navbar.scrolled {
  background: rgba(10,15,30,0.85);
  backdrop-filter: blur(16px);
  border-color: var(--border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gradient);
  display: inline-block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 14px;
  font-size: 0.875rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--text); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--text);
  transition: all var(--transition);
}

/* ── Cards ───────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}
.card:hover {
  background: var(--card-hover);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}

/* ── Badge ───────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.badge-accent {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(0,212,255,0.2);
}
.badge-gradient {
  background: var(--gradient);
  color: #0A0F1E;
}

/* ── Divider ─────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 0;
}

/* ── Form elements ───────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); letter-spacing: 0.04em; text-transform: uppercase; }

.form-input, .form-textarea, .form-select {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--border-focus);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-dim); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-select option { background: var(--card); }

/* ── Code blocks ─────────────────────────────────────── */
pre, code {
  font-family: var(--mono);
  font-size: 0.85rem;
}
pre {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  overflow-x: auto;
  line-height: 1.7;
  color: #87F5F5;
}
code {
  background: rgba(0,0,0,0.3);
  padding: 2px 6px;
  border-radius: 4px;
  color: #87F5F5;
}

/* ── Footer ──────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p {
  margin-top: 12px;
  font-size: 0.875rem;
  max-width: 260px;
}
.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: var(--text-dim);
  padding: 4px 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--text); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-dim);
}
.footer-socials { display: flex; gap: 16px; }
.footer-socials a {
  color: var(--text-dim);
  transition: color var(--transition);
}
.footer-socials a:hover { color: var(--text); }

/* ── Hero glow ───────────────────────────────────────── */
.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(135,245,245,0.06) 0%, rgba(240,66,255,0.04) 50%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ── Cover image placeholder ─────────────────────────── */
.cover-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cover-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.cover-placeholder {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background:
    repeating-linear-gradient(
      -45deg,
      rgba(255,255,255,0.02) 0px,
      rgba(255,255,255,0.02) 1px,
      transparent 1px,
      transparent 12px
    );
}
.cover-placeholder-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(10,15,30,0.7);
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* ── Scrollbar ───────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

/* ── Mobile nav ─────────────────────────────────────── */
.mobile-nav {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: rgba(10,15,30,0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  z-index: 99;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav.open { display: flex; }
.mobile-nav .nav-link {
  padding: 12px 16px;
  font-size: 1rem;
}

/* ── Accordion ───────────────────────────────────────── */
.accordion-item {
  border-bottom: 1px solid var(--border);
}
.accordion-trigger {
  width: 100%;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition);
}
.accordion-trigger:hover { color: var(--accent); }
.accordion-icon {
  flex-shrink: 0;
  width: 20px; height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: transform var(--transition);
}
.accordion-item.open .accordion-icon { transform: rotate(45deg); }
.accordion-body {
  display: none;
  padding: 0 0 20px;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}
.accordion-item.open .accordion-body { display: block; }

/* ── Page hero (inner pages) ─────────────────────────── */
.page-hero {
  padding: 140px 0 80px;
  text-align: center;
}
.page-hero h1 { margin-bottom: 16px; }
.page-hero p { margin: 0 auto; max-width: 560px; font-size: 1.05rem; }

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-sm { padding: 48px 0; }

  .nav-links, .nav-right .btn { display: none; }
  .hamburger { display: flex; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  h1 { font-size: 1.9rem; }
}