/* ============================================
   0xForge Layout System
   Grid, containers, responsive, navigation
   ============================================ */

/* --- Main App Container --- */
#app {
  position: relative;
  z-index: var(--z-base);
  min-height: 100vh;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--content-narrow);
}

/* --- Section --- */
.section {
  padding: var(--space-24) 0;
  position: relative;
}

.section--hero {
  padding: var(--space-32) 0 var(--space-24);
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: var(--space-2) var(--space-4);
  background: var(--accent-green-subtle);
  border: 1px solid var(--border-glow-green);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-4) 0;
  transition: background var(--transition-base), box-shadow var(--transition-base), padding var(--transition-base);
}

.nav--scrolled {
  background: var(--bg-glass-heavy);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  box-shadow: 0 1px 0 var(--border-subtle), var(--shadow-lg);
  padding: var(--space-3) 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav__logo-icon {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--accent-green);
  text-shadow: 0 0 10px rgba(0, 255, 65, 0.4);
}

.nav__logo-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.nav__link:hover,
.nav__link--active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav__link--active {
  color: var(--accent-green);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
}

.nav__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* --- Hero Layout --- */
.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent-green);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-green-subtle);
  border: 1px solid var(--border-glow-green);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-8);
  animation: fadeInDown 0.8s ease both;
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: var(--weight-black);
  line-height: 1.05;
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero__subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 680px;
  margin: 0 auto var(--space-10);
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero__stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  margin-top: var(--space-16);
  animation: fadeInUp 0.8s ease 0.5s both;
}

.hero__stat {
  text-align: center;
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
}

.hero__stat-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: var(--space-1);
}

/* Hero background effects */
.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero__bg-gradient {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.12;
  animation: float 12s ease-in-out infinite;
}

.hero__bg-gradient--green {
  background: var(--accent-green);
  top: -200px;
  right: -100px;
  animation-delay: 0s;
}

.hero__bg-gradient--blue {
  background: var(--accent-blue);
  bottom: -200px;
  left: -100px;
  animation-delay: -4s;
}

.hero__bg-gradient--purple {
  background: var(--accent-purple);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  animation-delay: -8s;
  opacity: 0.06;
}

/* Canvas for particle effects */
#hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

/* --- Grid Layouts --- */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid--auto-fill {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.grid--auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* --- Device Showcase --- */
.device-showcase {
  padding: var(--space-20) 0;
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.device-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-glow-green), transparent);
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
}

/* --- Firmware Browser Layout --- */
.firmware-browser {
  padding: var(--space-24) 0;
}

.firmware-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.firmware-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: var(--space-6);
}

.firmware-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-16) var(--space-8);
  color: var(--text-muted);
}

.firmware-empty__icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.firmware-empty__text {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

/* --- Flasher Layout --- */
.flasher-section {
  padding: var(--space-24) 0;
  background: var(--bg-secondary);
  position: relative;
}

.flasher-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-glow-blue), transparent);
}

.flasher-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

.flasher-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(var(--blur-glass));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

/* --- Pricing Layout --- */
.pricing-section {
  padding: var(--space-24) 0;
}

.tier-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  align-items: start;
}

/* --- CTA / Early Access --- */
.cta-section {
  padding: var(--space-24) 0;
  background: var(--bg-secondary);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-glow-purple), transparent);
}

.cta__form {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  max-width: 500px;
  margin: var(--space-8) auto 0;
}

/* --- Footer --- */
.footer {
  padding: var(--space-12) 0;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-primary);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer__link:hover {
  color: var(--text-secondary);
}

.footer__copy {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .tier-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .flasher-layout {
    grid-template-columns: 1fr;
  }

  .hero__stats {
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-16) 0;
  }

  .section--hero {
    padding: var(--space-24) 0 var(--space-16);
  }

  .section__title {
    font-size: var(--text-3xl);
  }

  .container {
    padding: 0 var(--space-4);
  }

  /* Mobile nav */
  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-glass-heavy);
    backdrop-filter: blur(var(--blur-heavy));
    -webkit-backdrop-filter: blur(var(--blur-heavy));
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-4);
    gap: var(--space-1);
  }

  .nav__links--open {
    display: flex;
  }

  .nav__mobile-toggle {
    display: flex;
  }

  /* Grids to single column */
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .tier-grid {
    grid-template-columns: 1fr;
  }

  .firmware-grid {
    grid-template-columns: 1fr;
  }

  .device-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero__stats {
    flex-direction: column;
    gap: var(--space-6);
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta__form {
    flex-direction: column;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .device-grid {
    grid-template-columns: 1fr;
  }

  .firmware-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__title {
    font-size: var(--text-3xl);
  }
}