/* Osmo Website — Main styles */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-system);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* Cosmic background canvas — full viewport, fixed */
.cosmic-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
}

.cosmic-bg canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.particle-orb-canvas {
  margin-bottom: 32px;
  will-change: transform;
}

.hero-title {
  font-size: 32px;
  font-weight: 100;
  letter-spacing: 4px;
  color: var(--text-primary);
  margin: 0;
  text-transform: uppercase;
}

.hero-divider {
  width: 0;
  height: 0.5px;
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.12), transparent);
  margin: 20px 0;
  transition: width 1s var(--ease-spring);
}

.hero-divider.visible {
  width: 60px;
}

.hero-tagline {
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 2px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  margin: 0;
}

/* Hero entrance — initial hidden state */
.hero-entrance {
  opacity: 0;
  transform: scale(0.88);
  filter: blur(8px);
  transition: opacity 1.8s var(--ease-spring), transform 1.8s var(--ease-spring), filter 1.8s var(--ease-spring);
}

.hero-entrance.visible {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

.particle-orb-canvas.visible {
  opacity: 1;
}

.particle-orb-canvas:not(.visible) {
  opacity: 0;
  transition: opacity 1.2s var(--ease-spring);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  animation: bounce 2s ease-in-out infinite;
}

.scroll-indicator svg {
  display: block;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* Section base */
.section {
  padding: 80px var(--sheet-margin-x);
  max-width: 1200px;
  margin: 0 auto;
}

.section-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease-spring), transform 0.8s var(--ease-spring);
}

.section-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 2px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  display: block;
  margin-bottom: 12px;
}

.section-heading {
  font-size: 28px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
  margin: 0 0 24px;
}

/* Narrative Sections */
.narrative {
  padding: 120px var(--sheet-margin-x);
}

.narrative-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.narrative-line {
  font-size: 20px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0 0 24px;
}

.narrative-line:last-child {
  margin-bottom: 0;
}

.narrative-trio {
  margin-bottom: 40px;
}

.narrative-trio .narrative-line {
  margin-bottom: 16px;
}

.narrative-trio .narrative-line:last-child {
  margin-bottom: 0;
}

.narrative-pull {
  font-size: 26px;
  font-weight: 300;
  line-height: 1.5;
  color: var(--text-primary);
  margin: 0;
}

/* Footer / CTA */
.footer-inner {
  text-align: center;
  padding: 48px 24px;
}

.footer-logo img {
  border-radius: 20px;
  margin-bottom: 16px;
}

.footer-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px;
}

.footer-tagline {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0 0 32px;
}

.email-signup-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  max-width: 480px;
  margin: 0 auto 32px;
}

.email-signup-form input {
  flex: 1;
  min-width: 200px;
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 0.5px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 14px 20px;
  font-family: var(--font-system);
  transition: border-color var(--transition-fast);
}

.email-signup-form input::placeholder {
  color: var(--text-muted);
}

.email-signup-form input:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.2);
}

.email-signup-form button {
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  background: var(--bg-input);
  border: 0.5px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 14px 24px;
  cursor: pointer;
  font-family: var(--font-system);
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.email-signup-form button:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.15);
}

.email-signup-form button:disabled {
  color: rgba(255, 255, 255, 0.15);
}

.footer-links {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--text-secondary);
}

.footer-links .separator {
  margin: 0 8px;
  opacity: 0.5;
}

/* Responsive */
@media (max-width: 1024px) {
  .section {
    padding: 60px var(--sheet-margin-x);
  }

  .narrative {
    padding: 80px var(--sheet-margin-x);
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 28px;
    letter-spacing: 3px;
  }

  .section {
    padding: 48px 20px;
  }

  .narrative {
    padding: 60px 20px;
  }

  .narrative-line {
    font-size: 18px;
  }

  .narrative-pull {
    font-size: 22px;
  }

  .email-signup-form {
    flex-direction: column;
  }

  .email-signup-form input {
    min-width: 100%;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hero-entrance,
  .section-reveal,
  .particle-orb-canvas {
    transition: none;
  }

  .scroll-indicator {
    animation: none;
  }
}