/* ================================================================
   yebura VI$UALIZER — Landing Page Styles
   ================================================================
   DEPENDENCY: design-system.css MUST be loaded before this file.
   All tokens (colors, fonts, spacing) come from design-system.css.
   ================================================================ */

/* ---- Body Override (LP-specific) ---- */
body.minimal-theme {
  overflow-x: hidden;
}

/* ---- Fullscreen Particle Canvas ---- */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: var(--z-canvas);
  pointer-events: none;
}

/* ---- Navigation ---- */
.navbar-minimal {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) var(--space-2xl);
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: var(--z-nav);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.brand-logo {
  height: 28px;
  width: auto;
  filter: brightness(200%);
}

.logo-separator {
  color: var(--color-comet);
  font-weight: var(--weight-light);
  font-size: var(--text-lg);
  margin: 0 var(--space-xs);
}

.brand-name {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-stardust);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

/* ---- Language Toggle ---- */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.lang-btn {
  background: none;
  border: none;
  color: var(--color-comet);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--ease-normal), background var(--ease-normal);
}

.lang-btn:hover {
  color: var(--color-stardust);
}

.lang-btn.active {
  color: var(--color-stardust);
  background: rgba(255, 255, 255, 0.1);
}

.lang-divider {
  color: var(--color-asteroid);
  font-size: var(--text-xs);
  font-weight: var(--weight-light);
}

/* ---- Nav Link ---- */
.nav-launch-link {
  text-decoration: none;
  color: var(--color-stardust);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-regular);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-bottom var(--ease-smooth);
}

.nav-launch-link:hover {
  border-bottom: 1px solid var(--color-stardust);
}

/* ---- Hero Section ---- */
.hero-minimal {
  text-align: center;
  padding: var(--space-5xl) var(--space-xl) var(--space-3xl);
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: var(--z-content);
}

.action-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

/* ---- Features Showcase ---- */
.showcase-section {
  padding: var(--space-4xl) var(--space-xl);
  max-width: 1000px;
  margin: 0 auto;
  border-top: 1px solid var(--color-asteroid);
  position: relative;
  z-index: var(--z-content);
}

.showcase-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
}

/* ---- Early Access Form ---- */
.early-access-minimal {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: var(--z-content);
}

.minimal-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 500px;
  margin: 0 auto;
}

/* ---- Desktop / Tablet (min-width: 768px) ---- */
@media (min-width: 768px) {
  .showcase-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    text-align: left;
  }
}

/* ---- Tablet+ form row (min-width: 500px) ---- */
@media (min-width: 500px) {
  .minimal-form {
    flex-direction: row;
    gap: 0;
    justify-content: center;
  }

  .minimal-form .ds-btn-ghost {
    margin-left: var(--space-sm);
  }
}

/* ---- Footer ---- */
.footer-minimal {
  padding: var(--space-2xl) var(--space-xl);
  border-top: 1px solid var(--color-asteroid);
  font-size: var(--text-sm);
  color: var(--color-comet);
  position: relative;
  z-index: var(--z-content);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: var(--weight-medium);
}

.footer-label {
  color: var(--color-comet);
}

.footer-logo {
  height: 14px;
  width: auto;
  filter: grayscale(100%) opacity(60%);
}

/* ---- Animations ---- */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 {
  transition-delay: 0.2s;
}

.delay-2 {
  transition-delay: 0.4s;
}

/* ================================================================
   MOBILE RESPONSIVENESS (max-width: 640px)
   ================================================================ */
@media (max-width: 640px) {

  /* --- Navigation: Premium Single Row --- */
  .navbar-minimal {
    flex-direction: row;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-lg);
    gap: 0;
    height: 64px;
    background: rgba(3, 3, 5, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
  }

  .logo-container {
    justify-content: flex-start;
    gap: var(--space-xs);
  }

  .brand-logo {
    height: 22px;
  }

  .logo-separator {
    display: none; /* Hide separator on small screens for cleaner look */
  }

  .brand-name {
    font-size: var(--text-sm);
    letter-spacing: var(--tracking-wider);
    display: none; /* Hide brand name on very small screens to prioritize CTA */
  }

  /* Show brand name on wider mobile screens */
  @media (min-width: 400px) {
    .brand-name {
      display: block;
    }
  }

  .nav-actions {
    width: auto;
    gap: var(--space-md);
  }

  /* Compact Language Toggle */
  .lang-toggle {
    gap: 0;
  }

  .lang-btn {
    padding: var(--space-xs) var(--space-sm);
    font-size: 10px;
  }

  .nav-launch-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-stardust);
    color: var(--color-void) !important;
    border-radius: var(--radius-pill);
    font-weight: var(--weight-bold);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
    border-bottom: none !important;
  }

  /* --- Hero: Full-screen, spacious, simple --- */
  .hero-minimal {
    min-height: 100vh;
    min-height: 100dvh;
    /* Dynamic viewport height for mobile browsers */
    padding: 80px var(--space-xl) 0; /* Account for fixed header */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
  }

  .hero-content-minimal {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
  }

  .ds-heading-hero {
    margin-bottom: var(--space-md) !important;
    line-height: 1.15;
  }

  .hero-minimal .ds-body {
    font-size: var(--text-md) !important;
    padding: 0 var(--space-sm);
    margin-bottom: var(--space-lg) !important;
    line-height: var(--leading-relaxed);
    opacity: 0.85;
  }

  .action-group {
    gap: var(--space-lg);
  }

  .action-group .ds-btn-primary {
    width: 100%;
    max-width: 280px;
    padding: var(--space-md) var(--space-2xl);
    font-size: var(--text-md);
  }

  .action-group .ds-body-sm {
    font-size: var(--text-sm);
    opacity: 0.6;
  }

  /* --- Feature Section --- */
  .showcase-section {
    padding: var(--space-3xl) var(--space-lg);
  }

  .showcase-content {
    gap: var(--space-2xl);
    text-align: center;
  }

  .ds-heading-section {
    font-size: var(--text-xl);
  }

  /* --- Form --- */
  .early-access-minimal {
    padding: var(--space-3xl) var(--space-lg);
  }

  .minimal-form {
    flex-direction: column;
    width: 100%;
    gap: var(--space-md);
  }

  .minimal-form .ds-input {
    width: 100%;
    text-align: center;
    font-size: var(--text-base);
  }

  .minimal-form .ds-btn-ghost {
    width: 100%;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    padding: var(--space-md);
    margin-left: 0;
    border: 1px solid var(--color-asteroid);
    border-radius: var(--radius-md);
  }

  /* --- Footer --- */
  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-lg);
  }

  .footer-brand {
    justify-content: center;
  }
}