/* ========================================
   PulseBar — Landing Page Styles
   ======================================== */

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

:root {
  --bg:        #09090b;
  --bg-card:   #18181b;
  --bg-card2:  #1e1e22;
  --border:    #27272a;
  --text:      #fafafa;
  --text-dim:  #a1a1aa;
  --accent:    #6366f1;
  --accent2:   #818cf8;
  --accent-bg: rgba(99,102,241,.12);
  --green:     #22c55e;
  --red:       #ef4444;
  --radius:    12px;
  --radius-lg: 20px;
  --max-w:     1140px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a   { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border-radius: 10px;
  transition: all .2s;
  cursor: pointer;
  border: none;
  font-family: inherit;
}
.btn-sm    { padding: 8px 18px;  font-size: .875rem; }
.btn-lg    { padding: 14px 32px; font-size: 1.05rem; }
.btn-block { width: 100%; padding: 14px; font-size: 1rem; }

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: #4f46e5; transform: translateY(-1px); box-shadow: 0 4px 24px rgba(99,102,241,.35); }

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* --- Nav --- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(9,9,11,.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -.02em;
}
.logo-icon { font-style: normal; margin-right: 2px; }
.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a { font-size: .9rem; font-weight: 500; color: var(--text-dim); transition: color .15s; }
.nav-links a:hover { color: var(--text); }
.nav-links .btn { color: #fff; }
.mobile-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* --- Hero --- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 160px 0 100px;
}
.hero-glow {
  position: absolute;
  width: 700px; height: 700px;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(99,102,241,.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  display: flex;
  align-items: center;
  gap: 60px;
}
.hero-text { flex: 1; }
.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--accent2);
  background: var(--accent-bg);
  margin-bottom: 20px;
  letter-spacing: .03em;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, #a78bfa 50%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.12rem;
  color: var(--text-dim);
  max-width: 520px;
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; }
.hero-note { font-size: .8rem; color: var(--text-dim); }

/* Hero visual — mockup */
.hero-visual { flex: 1; display: flex; justify-content: center; }
.overlay-mockup { width: 100%; max-width: 440px; }

.mockup-bar {
  background: rgba(30,30,34,.85);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: 0 8px 40px rgba(0,0,0,.5);
}
.mockup-section { display: flex; align-items: center; gap: 8px; }
.mockup-label {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-dim);
  min-width: 28px;
}

/* CPU mini bars */
.mockup-cores { display: flex; gap: 2px; align-items: flex-end; height: 28px; }
.mockup-core-bar {
  width: 4px;
  border-radius: 2px;
  background: var(--accent);
  transition: height .4s ease;
}

/* Memory ring */
.mockup-ring { position: relative; width: 34px; height: 34px; }
.ring-svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg  { fill: none; stroke: var(--border); stroke-width: 3; }
.ring-fill { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linecap: round; transition: stroke-dasharray .6s ease; }
.ring-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .5rem;
  font-weight: 700;
  color: var(--text);
}

/* Network */
.mockup-net-values { display: flex; flex-direction: column; gap: 2px; font-size: .7rem; font-weight: 600; }
.net-down { color: var(--green); }
.net-up   { color: var(--accent2); }

/* Disk */
.mockup-disk-section { gap: 6px; }
.mockup-disk-bar {
  width: 48px; height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.mockup-disk-fill {
  height: 100%;
  width: 34%;
  background: var(--accent);
  border-radius: 3px;
  transition: width .5s ease;
}
.mockup-disk-pct { font-size: .65rem; font-weight: 700; color: var(--text-dim); }

.mockup-caption {
  text-align: center;
  margin-top: 14px;
  font-size: .75rem;
  color: var(--text-dim);
  opacity: .7;
}

/* --- Sections shared --- */
.section-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 600;
  color: var(--accent2);
  background: var(--accent-bg);
  margin-bottom: 14px;
  letter-spacing: .03em;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.section-sub {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto 48px;
}

/* --- Features --- */
.features { padding: 100px 0; text-align: center; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
  text-align: left;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color .2s, transform .2s;
}
.feature-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.feature-icon { font-size: 1.6rem; margin-bottom: 14px; }
.feature-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p  { font-size: .88rem; color: var(--text-dim); line-height: 1.55; }

.pro-badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: .6rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 4px;
  letter-spacing: .04em;
}

/* --- Comparison table --- */
.comparison { padding: 80px 0; text-align: center; }
.table-wrap { overflow-x: auto; margin-top: 40px; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .92rem;
}
th, td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th {
  font-weight: 700;
  color: var(--text-dim);
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.highlight-col {
  background: rgba(99,102,241,.07);
  border-left: 2px solid var(--accent);
  font-weight: 600;
}

/* --- Pricing --- */
.pricing { padding: 100px 0; text-align: center; }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 720px;
  margin: 0 auto;
  margin-top: 48px;
}
.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  text-align: left;
  position: relative;
}
.price-card-pro {
  border-color: var(--accent);
  box-shadow: 0 0 60px rgba(99,102,241,.12);
}
.popular-tag {
  position: absolute;
  top: -13px; left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 999px;
  letter-spacing: .04em;
}
.price-card-header h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.price {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -.03em;
  margin: 8px 0 2px;
}
.price-decimal { font-size: 1.6rem; }
.price-period { font-size: .85rem; color: var(--text-dim); margin-bottom: 24px; }
.price-features {
  list-style: none;
  margin-bottom: 28px;
}
.price-features li {
  padding: 8px 0;
  font-size: .9rem;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.price-features .excluded { color: var(--text-dim); opacity: .5; }

/* --- Testimonials --- */
.testimonials { padding: 80px 0; text-align: center; }
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  text-align: left;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.stars { color: #facc15; margin-bottom: 12px; letter-spacing: 2px; }
.testimonial-card p { font-size: .9rem; color: var(--text-dim); line-height: 1.6; margin-bottom: 16px; }
.testimonial-author { font-size: .8rem; font-weight: 600; color: var(--text); }

/* --- FAQ --- */
.faq { padding: 100px 0; text-align: center; }
.faq-list { max-width: 680px; margin: 48px auto 0; text-align: left; }
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item summary {
  padding: 20px 0;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color .15s;
}
.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--text-dim);
  transition: transform .2s;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item summary:hover { color: var(--accent2); }
.faq-item p {
  padding: 0 0 20px;
  color: var(--text-dim);
  font-size: .92rem;
  line-height: 1.65;
}

/* --- Download CTA --- */
.download {
  padding: 100px 0;
  text-align: center;
  background: linear-gradient(180deg, transparent 0%, rgba(99,102,241,.06) 100%);
}
.download h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 14px;
}
.download p { color: var(--text-dim); margin-bottom: 32px; font-size: 1.05rem; }
.download-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.download-meta { font-size: .78rem; color: var(--text-dim); opacity: .7; }

/* --- Footer --- */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-left p { font-size: .82rem; color: var(--text-dim); margin-top: 6px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: .85rem; color: var(--text-dim); transition: color .15s; }
.footer-links a:hover { color: var(--text); }

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 900px) {
  .hero-inner   { flex-direction: column; text-align: center; }
  .hero-sub     { margin: 0 auto 32px; }
  .hero-cta     { justify-content: center; }
  .hero-note    { text-align: center; }
  .features-grid     { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid  { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-links       { display: none; }
  .mobile-toggle   { display: block; }
  .navbar.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(9,9,11,.96);
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }
  .features-grid   { grid-template-columns: 1fr; }
  .pricing-grid    { grid-template-columns: 1fr; }
  .hero { padding: 120px 0 60px; }
}