body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(
        to bottom,
        #0a2a52 0%,
        #5c78aa 50%,
        #0e265e 100%
        );
    color: #e5e7eb;
  }

/* HEADER (Your App Style) */

header 

.topbar {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #1f2937;
    background: #0f1c2f;
  }
  
  .nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
  }
  
  .logo-wrap {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }
  
  .logo-icon {
    height: 36px;
    width: auto;
  }
  
  .logo-text {
    font-size: 2rem;
    font-weight: 600;
    color: #f1f5f9;
  }
  
  .nav-headline {
    text-align: center;
    font-size: 1.4rem;
    font-weight: 600;
    color: #f8fafc;
    letter-spacing: -0.02em;
  }
  
  .nav-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
  }
    


/* COMPACT HERO */
/*
.hero-compact {
  padding: 2rem 1.5rem 3rem;
  max-width: 1400px;
  margin: 0 auto;
}


.headline {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
*/
/* Hero split */
.hero-grid {
    max-width: 1400px;
    margin: 3rem auto 2rem;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 30% 70%;
    gap: 3rem;
    align-items: stretch;   /* fill full height */
  }
  
  .hero-lines {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    margin-top: 1rem;
    margin-bottom: 2rem;
  }
  
  .line {
    font-size: 1.6rem;
    font-weight: 500;
    opacity: 0;
    transition: opacity 2s ease;
  }
  
  /* Alternating offsets */
  .line-0 { margin-left: 0%; }
  .line-1 { margin-left: 25%; }
  .line-2 { margin-left: 10%; }
  .line-3 { margin-left: 35%; }
  .line-4 { margin-left: 15%; }
  
  
  .hero-lines div {
    animation: fadeUp 3.0s ease forwards;
    opacity: 0;
  }
  
  .hero-lines div:nth-child(1) { animation-delay: 3.0s; }
  .hero-lines div:nth-child(2) { animation-delay: 6.0s; }
  .hero-lines div:nth-child(3) { animation-delay: 9.0s; }
  .hero-lines div:nth-child(4) { animation-delay: 12.0s; }
  
  @keyframes fadeUp {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .hero-echo {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #e0f2fe;
    white-space: pre-line;
  }
  

  
  .hero-left {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    justify-content: space-between;  /* spread vertically */
  }


  .headline {
    font-size: 2.6rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
  }
  
  
  .subhead {
    color: #e2e8f0;
    font-size: 2.0rem;
    line-height: 1.6;
  }
  
  .subhead ul {
    list-style: disc;
    padding-left: 1.2rem;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
  }
  
  .subhead li {
    color: #e2e8f0;
    font-size: 1rem;
    line-height: 1.6;
  }
  
  .hero-right {
    display: flex;
    flex-direction: column;
  }
  
  .hero-buttons {
    max-width: 1400px;
    margin: 1.5rem auto 3rem;
    padding: 0 1.5rem;
    display: flex;
    gap: 1rem;
  }
  

.reel-caption {
  font-size: 0.9rem;
  color: #9ca3af;
  margin-bottom: 0.75rem;
  min-height: 1.2rem;
  transition: opacity 0.3s ease;
}

/* REEL */

.reel-frame {
  position: relative;
  width: 100%;
  height: 500px;
  overflow: hidden;
  border-radius: 12px;
}

/* Subtle top/bottom fade */
.reel-frame::before,
.reel-frame::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 80px;
  pointer-events: none;
  z-index: 2;
}

.reel-frame::before {
  top: 0;
  background: linear-gradient(to bottom, #020617 0%, transparent 100%);
}

.reel-frame::after {
  bottom: 0;
  background: linear-gradient(to top, #020617 0%, transparent 100%);
}

.reel-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.slide.active {
  opacity: 1;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;       /* CROP FILL */
  object-position: center; /* Center focus */
}

/* SUB SECTION */

.hero-sub {
  margin-top: 2rem;
  max-width: 700px;
}

.hero-sub p {
    color: #e2e8f0;
    font-size: 1.05rem;
  }
  
.hero-buttons {
  display: flex;
  gap: 1rem;
}

.btn-primary {
  background: #2563eb;
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  text-decoration: none;
}

.btn-secondary {
  border: 1px solid #334155;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  text-decoration: none;
  color: #e5e7eb;
}

html {
    scroll-behavior: smooth;
  }
  
  .use-cases {
    max-width: 1200px;
    margin: 4rem auto 4rem;
    padding: 0 1.5rem;
  }
  
  .use-cases-viz {
    width: 100%;
    height: 480px;          /* desktop height */
  }
  
  @media (max-width: 900px) {
    .use-cases-viz {
      height: 720px;        /* taller for stacked-ish cluster */
    }
  }
  
  /* inside-bubble content */
  .bubble-card {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #e5e7eb;
    width: 240px;
    padding: 14px 16px;
  }
  
  .bubble-card h3 {
    margin: 0 0 10px 0;
    font-size: 16px;
    font-weight: 700;
    color: #e5e7eb;
  }
  
  .bubble-card ul {
    margin: 0;
    padding-left: 18px;
  }
  
  .bubble-card li {
    margin: 0 0 6px 0;
    font-size: 14px;
    line-height: 1.35;
  }
  

  .difference {
    max-width: 1200px;
    margin: 4rem auto 5rem;
    padding: 0 1.5rem;
    text-align: center;
  }
  
  .difference-lead {
    font-size: 1.4rem;
    font-weight: 500;
    margin-bottom: 2.5rem;
    color: #e2e8f0;
  }
  
  .difference-lead span {
    display: block;
    font-weight: 600;
    color: #f8fafc;
    margin-top: 0.5rem;
  }
  
  .difference-grid {
    display: grid;
    grid-template-columns: repeat(2, auto);
    justify-content: center;
    gap: 1rem 3rem;
  }
  
  .difference-no {
    color: #93c5fd;
    font-size: 1rem;
  }
  
  .difference-yes {
    grid-column: span 2;
    margin-top: 1rem;
    font-size: 1.5rem;
    font-weight: 500;
    color: #e2e8f0;
  }
  

  .signup {
    max-width: 900px;
    justify-content: center;
    margin: 5rem auto 4rem;
    padding: 2.5rem 2rem;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
  }
  
  .signup h2 {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: #f8fafc;
  }
  
  .signup p {
    color: #cbd5e1;
    margin-bottom: 2rem;
    font-size: 1rem;
  }
  
  .email-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .email-form input,
  .email-form textarea {
    width: 100%;
    padding: 0.9rem 1rem;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.05);
    color: #f1f5f9;
    font-size: 0.95rem;
    outline: none;
    transition: border 0.2s ease, background 0.2s ease;
  }
  
  .email-form input::placeholder,
  .email-form textarea::placeholder {
    color: #94a3b8;
  }
  
  .email-form input:focus,
  .email-form textarea:focus {
    border-color: #60a5fa;
    background: rgba(255,255,255,0.08);
  }
  
  .email-form textarea {
    min-height: 110px;
    resize: vertical;
  }
  
  .email-form button {
    align-self: flex-start;
    margin-top: 0.5rem;
  }
  
  .form-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.5rem;
  }
  
  .form-message {
    font-size: 0.9rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  
  .form-message.show {
    opacity: 1;
  }
  
  .form-message.success {
    color: #22c55e;  /* green */
  }
  
  .form-message.error {
    color: #ef4444;  /* red */
  }
  

  .kit-form {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
  }
  .kit-form form {
    max-width: 500px;
    width: 100%;
  }