/* ---------------- RESET ---------------- */
* {
  box-sizing: border-box;
  font-family: 'Inter', system-ui, sans-serif;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 500px at 50% -20%, rgba(96,165,250,0.12), transparent 60%),
    linear-gradient(180deg, #020617 0%, #020617 60%, #030a1f 100%);
  color: #e5e7eb;
}

/* ---------------- HERO ---------------- */
.hero {
  padding: 90px 20px 70px;
  text-align: center;
  max-width: 980px;
  margin: 0 auto;
}

.hero-logo {
  height: 72px;              /* ⬅ bigger (was 52px) */
  margin-bottom: 24px;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.6));
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  max-width: 700px;
  margin: 16px auto 40px;
  font-size: 1.05rem;
  line-height: 1.6;
  color: #cbd5e1;
}

/* ---------------- BUTTONS ---------------- */
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn {
  width: 180px;
  height: 48px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.35);
}

.btn.primary {
  background: #4f8cff;
  color: #fff;
}

.btn.secondary {
  background: #1f2937;
  color: #e5e7eb;
  border: 1px solid #374151;
}

/* ---------------- DEMO SECTION ---------------- */
.demo-section {
  margin: 40px auto 80px;
  text-align: center;
  max-width: 1100px;
  padding: 0 20px;
}

.demo-section h2 {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.demo-description {
  max-width: 700px;
  margin: 0 auto 28px;
  font-size: 1rem;
  color: #cbd5e1;
}

.demo-image {
  width: 100%;
  max-width: 1000px;
  border-radius: 18px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.45);
}

.demo-disclaimer {
  margin-top: 14px;
  font-size: 0.85rem;
  color: #9ca3af;
}

/* ---------------- FEATURES ---------------- */
.features {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 60px 20px;
  flex-wrap: wrap;
}

.feature-card {
  width: 260px;
  background: rgba(15, 23, 42, 0.85);
  border-radius: 16px;
  padding: 22px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.feature-card h3 {
  margin-top: 0;
  color: #93c5fd;
}

/* ---------------- FOOTER ---------------- */
footer {
  text-align: center;
  padding: 30px 20px;
  font-size: 0.85rem;
  color: #9ca3af;
}

.version {
  display: block;
  margin-top: 10px;
}

.market-note {
  display: block;
  margin-top: 6px;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #60a5fa;
}

/* ---------------- MODAL ---------------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 4000;
}

.modal-content {
  background: #0f172a;
  padding: 28px;
  border-radius: 14px;
  width: 340px;
  text-align: center;
}

.modal-content input {
  width: 100%;
  padding: 10px;
  margin: 10px 0;
  border-radius: 6px;
  border: none;
}

.modal-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
}

/* ---------------- FLOATING ASSISTANT ---------------- */
.assistant-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #4f8cff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0,0,0,0.45);
  z-index: 2500;
}

/* ---------------- INSIGHT OVERLAY ---------------- */
.insight-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.25);
  z-index: 3000;
  transition: opacity 0.2s ease;
  pointer-events: auto;
}

.insight-box {
  max-width: 440px;
  background: rgba(15, 23, 42, 0.18);
  backdrop-filter: blur(16px);
  border-radius: 18px;
  padding: 24px 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

.insight-title {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #60a5fa;
  margin-bottom: 14px;
  text-align: center;
}

.insight-content {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #e5e7eb;
  text-align: justify;
}

/* ---------------- VISIBILITY HELPERS ---------------- */
.hidden {
  display: none;
}

.hidden-soft {
  opacity: 0;
  pointer-events: none;
}

.author-link {
  display: block;
  margin-top: 8px;
  font-size: 0.75rem;
  color: #60a5fa;
  cursor: pointer;
}

.author-link:hover {
  text-decoration: underline;
}