:root {
  --bg: #07070c;
  --bg-elevated: #100f18;
  --border: #232233;
  --text: #f2f1f7;
  --text-muted: #9392a8;
  --blue: #4d79ff;
  --lilac: #b98cff;
  --grad: linear-gradient(120deg, var(--blue), var(--lilac));

  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --container: 1140px;
  --radius: 14px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
}

p { margin: 0; color: var(--text-muted); }

a { color: inherit; text-decoration: none; }

code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  padding: 0.1em 0.45em;
  border-radius: 5px;
  color: #d9d6ff;
}

/* -------- decorative background glow -------- */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(600px 420px at 12% -5%, rgba(77,121,255,0.16), transparent 60%),
    radial-gradient(600px 500px at 90% 10%, rgba(185,140,255,0.14), transparent 60%),
    radial-gradient(800px 600px at 50% 100%, rgba(77,121,255,0.08), transparent 60%);
}

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease;
}
.site-header.scrolled {
  background: rgba(7,7,12,0.82);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--border);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.main-nav {
  display: flex;
  gap: 32px;
}
.nav-link {
  font-size: 0.92rem;
  color: var(--text-muted);
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  transition: color 0.2s ease;
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1.5px;
  background: var(--grad);
  transition: width 0.25s ease;
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 20px; height: 1.5px;
  background: var(--text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad);
  color: #07070c;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -8px rgba(120,110,255,0.55); }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--lilac); background: rgba(185,140,255,0.06); }

.btn-small { padding: 8px 16px; font-size: 0.85rem; }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  padding: 168px 0 80px;
  min-height: 92vh;
  display: flex;
  align-items: center;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 40px;
}

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.76rem;
  color: var(--lilac);
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(3.2rem, 7vw, 5.4rem);
  letter-spacing: -0.03em;
  color: var(--text);
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  color: var(--text);
  margin-top: 14px;
  font-weight: 500;
}

.hero-desc {
  max-width: 480px;
  margin-top: 18px;
  font-size: 1.02rem;
}

.status-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lilac);
  box-shadow: 0 0 0 3px rgba(185, 140, 255, 0.15);
  flex-shrink: 0;
  animation: status-pulse 2.4s ease-in-out infinite;
}
@keyframes status-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.hero-visual{
  display:flex;
  justify-content:center;
  align-items:center;
}

.hero-image{
  width:100%;
  max-width:520px;
  border-radius:5px;
  display:block;

  box-shadow:0 30px 60px rgba(0,0,0,.35);
}

.scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
}
.scroll-cue span {
  display: block;
  width: 1px; height: 34px;
  background: linear-gradient(var(--text-muted), transparent);
  animation: cue 1.8s ease-in-out infinite;
}
@keyframes cue { 0%,100% { opacity: 0.2; } 50% { opacity: 1; } }

/* =========================================================
   Sections (shared)
   ========================================================= */
.section { padding: 110px 0; }
.section-alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,0.015) 15%, rgba(255,255,255,0.015) 85%, transparent); }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  letter-spacing: -0.02em;
  margin-top: 8px;
}
.section-desc { margin-top: 16px; font-size: 1.02rem; }

/* =========================================================
   Results — Showcase Image
   ========================================================= */
      #results .container {
        display: flex;
        flex-direction: column;
        gap: 40px; 
      }
      
      #results .section-head {
        margin-bottom: 0; 
        z-index: 2;
        position: relative;
      }
      
      .results-showcase {
        width: 100%;
        display: flex;
        justify-content: center;
      }
      
      .showcase-img {
        max-width: 600px; 
        width: 100%;      
        height: auto;     
        display: block;
      }
      
      @media (min-width: 981px) {
        #results .container {
          flex-direction: row;
          align-items: center; 
          justify-content: space-between;
        }
      
        #results .section-head {
          flex: 1;
          max-width: 600px; 
          flex-shrink: 0;
        }
      
        .results-showcase {
          flex: 1;
          justify-content: flex-end; 
          margin-left: -50px; 
          pointer-events: none;  
        }
      }

/* =========================================================
   About — feature grid
   ========================================================= */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(185,140,255,0.4); }
.feature-icon { margin-bottom: 16px; }
.feature-card h3 {
  font-size: 1.02rem;
  margin-bottom: 8px;
}
.feature-card p { font-size: 0.92rem; }

/* =========================================================
   Workflow & Clean UI Legends (Grid & Subtext layout)
   ========================================================= */
   .about-workflow {
    display: flex;
    flex-direction: column;
    gap: 96px;
    margin-top: 100px;
  }

  .about-workflow .section-head.small-head {
    margin-bottom: 8px; 
  }
  
  .workflow-row {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center; 
  }
  
  .workflow-row.reverse {
    grid-template-columns: 0.9fr 1.1fr;
  }
  
  .workflow-row.reverse .workflow-media {
    order: 2;
  }
  
  .workflow-media {
    width: 100%;
  }
  
  .workflow-img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    border: 1px solid var(--border);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
    display: block;
  }
  
  .workflow-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  
  .step-badge {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--lilac);
    background: rgba(185, 140, 255, 0.08);
    border: 1px solid rgba(185, 140, 255, 0.2);
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 16px;
  }
  
  .workflow-intro {
    font-size: 0.96rem;
    line-height: 1.6;
    margin-bottom: 28px;
    color: var(--text-muted);
  }
  
  .workflow-legend-clean {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
  }
  
  .workflow-legend-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    width: 100%;
  }

  .legend-item-clean {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: rgba(16, 15, 24, 0.4);
    border: 1px solid var(--border);
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    transition: border-color 0.2s ease, background 0.2s ease;
  }
  
  .legend-item-clean:hover {
    border-color: rgba(77, 121, 255, 0.25);
    background: rgba(77, 121, 255, 0.01);
  }
  
  .legend-dot-clean {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--blue);
    background: rgba(77, 121, 255, 0.08);
    border: 1px solid rgba(77, 121, 255, 0.15);
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    flex-shrink: 0;
    margin-top: 1px;
  }
  
  .legend-content-clean {
    display: flex;
    flex-direction: column;
    gap: 3px;
  }
  
  .legend-title-clean {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.01em;
  }
  
  .legend-desc-clean {
    font-size: 0.82rem;
    line-height: 1.4;
    color: var(--text-muted);
  }
  
  @media (max-width: 980px) {
    .workflow-row, .workflow-row.reverse {
      grid-template-columns: 1fr;
      gap: 32px;
    }
    .workflow-row.reverse .workflow-media {
      order: 0;
    }
    .workflow-media {
      position: static;
    }
    
    .workflow-legend-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 640px) {
    .workflow-legend-grid {
      grid-template-columns: 1fr;
    }
  }

/* =========================================================
   Showcase — video
   ========================================================= */
.video-frame video{
  width:100%;
  border-radius:20px;
  display:block;
}

/* =========================================================
   Guide — Note Box
   ========================================================= */
.note-box{
  margin:28px 0;
  padding:20px 24px;

  background:rgba(77,121,255,.05);
  border:1px solid rgba(77,121,255,.18);
  border-left:4px solid var(--blue);

  border-radius:12px;
}

.note-box h4{
  margin:0 0 10px;
  color:var(--text);
  font-size:1rem;
}

.note-box p{
  margin:0;
  color:var(--text-muted);
}

/* =========================================================
   Guide — pipeline
   ========================================================= */
.guide-teaser-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 28px;
}
.guide-teaser-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.step-num-sm {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: transparent;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  font-weight: 500;
}

.guide-teaser-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
}

.step-tag {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 10px;
}

/* =========================================================
   Feedback
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.contact-card {
  display: block;
  text-align: left;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  font-family: var(--font-body);
  cursor: pointer;
  color: inherit;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.contact-card-btn { width: 100%; }
.contact-card:hover { transform: translateY(-4px); border-color: rgba(77,121,255,0.4); }
.contact-icon { margin-bottom: 16px; }
.contact-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.contact-card p { font-size: 0.94rem; }
.contact-cta {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text);
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.88rem;
}
.footer-inner p { color: var(--text-muted); }
.back-to-top { color: var(--text-muted); transition: color 0.2s ease; }
.back-to-top:hover { color: var(--text); }

/* =========================================================
   Scroll reveal
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* =========================================================
   Guide page (guide.html)
   ========================================================= */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  transition: color 0.2s ease;
}
.back-link:hover { color: var(--text); }

.guide-hero {
  padding: 150px 0 70px;
  border-bottom: 1px solid var(--border);
}
.guide-title {
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  letter-spacing: -0.02em;
  margin-top: 10px;
  max-width: 720px;
}
.guide-intro-desc {
  max-width: 620px;
  font-size: 1.02rem;
  margin-top: 18px;
}
.guide-meta {
  display: flex;
  gap: 10px;
  margin-top: 22px;
}
.guide-meta .step-tag { margin-top: 0; padding: 5px 14px; font-size: 0.76rem; }

.guide-body-section { padding-top: 70px; }

.guide-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.guide-sidebar { min-width: 0; }
.guide-content { min-width: 0; max-width: 720px; }

.guide-sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.toc-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.toc { display: flex; flex-direction: column; }
.toc-link {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 8px 0 8px 14px;
  border-left: 1.5px solid var(--border);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.toc-link:hover { color: var(--text); }
.toc-link.active {
  color: var(--text);
  border-left-color: var(--lilac);
  font-weight: 500;
}

.sidebar-download {
  border-top: 1px solid var(--border);
  padding-top: 24px;
}
.sidebar-download-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.btn-block { display: flex; width: 100%; justify-content: center; }



.guide-section {
  padding-bottom: 64px;
  margin-bottom: 64px;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 100px;
}
.guide-section:last-of-type { border-bottom: none; }

.guide-step-num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: transparent;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  margin-bottom: 6px;
  font-weight: 500;
}
.guide-section h2 {
  font-size: 1.6rem;
  letter-spacing: -0.015em;
  margin-bottom: 12px;
}
.guide-section .step-tag { margin-bottom: 20px; display: inline-block; }
.guide-lead {
  font-size: 0.98rem;
  margin-top: 16px;
  max-width: 640px;
}

.guide-steps {
  margin: 20px 0;
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.guide-steps li {
  font-size: 0.96rem;
  color: var(--text);
  line-height: 1.65;
  padding-left: 6px;
}
.guide-steps li::marker {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--lilac);
}

.guide-figure {
  margin: 28px 0;
  max-width: 460px;
}
.guide-figure-wide { max-width: 100%; }
.guide-figure img {
  width: 100%;
  display: block;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}
.guide-figure figcaption {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.callout {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: rgba(185,140,255,0.06);
  border: 1px solid rgba(185,140,255,0.25);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin: 24px 0;
}
.callout svg { flex-shrink: 0; margin-top: 2px; }
.callout p { font-size: 0.92rem; color: var(--text); }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 320px; margin: 0 auto; }
  .hero { padding-top: 140px; text-align: left; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }

  .guide-layout { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .guide-sidebar {
    position: static;
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
  }
  .toc { flex-direction: row; flex-wrap: wrap; gap: 4px 18px; }
  .toc-link { border-left: none; border-bottom: 1.5px solid var(--border); padding: 4px 0; }
  .toc-link.active { border-bottom-color: var(--lilac); }
  .sidebar-download { border-top: none; padding-top: 0; flex-shrink: 0; }
  .sidebar-download .btn-block { width: auto; }
}

@media (max-width: 760px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .feature-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .section { padding: 80px 0; }
  .guide-teaser-list { grid-template-columns: 1fr; }
  .hero-actions { align-items: flex-start; }
  .guide-hero { padding-top: 120px; }
  .guide-sidebar { flex-direction: column; gap: 20px; }
  .sidebar-download .btn-block { width: 100%; }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: rgba(7,7,12,0.98);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px 28px;
    gap: 18px;
  }
}