/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--az-orange);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.nav.scrolled {
  padding: 0.75rem 0;
  background: rgba(10, 8, 6, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav.scrolled::after {
  opacity: 0.3;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  flex-shrink: 0;
}

.nav__logo-accent {
  color: var(--az-orange);
  font-style: italic;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.nav__link {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
  transition: color var(--trans-base);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0;
  height: 1.5px;
  background: var(--az-orange);
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav__link:hover {
  color: var(--text-primary);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-small);
  letter-spacing: 0.03em;
  padding: 0.65em 1.5em;
  border-radius: var(--radius-full);
  background: var(--az-orange);
  color: var(--text-on-orange);
  transition: all var(--trans-spring);
  white-space: nowrap;
  box-shadow: var(--shadow-orange);
}

.nav__cta:hover {
  background: var(--az-orange-light);
  box-shadow: var(--shadow-orange-lg);
  transform: translateY(-1px);
}

/* Mobile Nav Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: 1001;
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Overlay */
.nav__overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 8, 6, 0.97);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  z-index: 999;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.nav__overlay.open {
  display: flex;
  opacity: 1;
  visibility: visible;
}

.nav__overlay-link {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  color: var(--text-primary);
  transition: color 0.2s ease;
}

.nav__overlay-link:hover {
  color: var(--az-orange);
}

.nav__overlay-trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.nav__overlay-trust span {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--text-muted);
  letter-spacing: 0.05em;
}


/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--az-dark-1);
  padding-top: 5rem;
}

/* Three.js Canvas Container */
.hero__canvas-wrap {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero__canvas-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

/* Subtle ambient glow */
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 2;
}

.hero__glow--1 {
  width: 600px; height: 600px;
  right: -100px; top: -100px;
  background: rgba(244, 131, 46, 0.06);
}

.hero__glow--2 {
  width: 400px; height: 400px;
  left: 20%; bottom: -50px;
  background: rgba(244, 131, 46, 0.03);
}

/* Layer-line background texture */
.hero__layer-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.35;
  background: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent 2px,
    rgba(244, 131, 46, 0.015) 2px,
    rgba(244, 131, 46, 0.015) 3px
  );
}

/* Main Content Grid */
.hero__inner {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: var(--space-xl);
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
  width: 100%;
}

/* Text Content */
.hero__content {
  max-width: 620px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-size: var(--fs-overline);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--az-orange);
  margin-bottom: var(--space-md);
  opacity: 0;
}

.hero__eyebrow-line {
  width: 28px;
  height: 1.5px;
  background: var(--az-orange);
  flex-shrink: 0;
}

.hero__headline {
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.hero__headline .line {
  display: block;
  overflow: hidden;
}

.hero__headline .line-inner {
  display: block;
  transform: translateY(110%);
  position: relative;
}

/* The nozzle glow on the headline reveal */
.hero__headline .line-inner::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--az-orange);
  box-shadow: var(--nozzle-glow);
  opacity: 0;
  transform: scaleX(0);
  transform-origin: left;
}

.hero__headline .accent {
  color: var(--az-orange);
  font-style: italic;
}

.hero__subtext {
  font-size: var(--fs-body-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: var(--space-lg);
  opacity: 0;
}

/* CTAs */
.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: var(--space-lg);
  opacity: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-small);
  letter-spacing: 0.03em;
  padding: 0.95em 2em;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  transition: all var(--trans-spring);
  white-space: nowrap;
  cursor: pointer;
}

.btn--primary {
  background: var(--az-orange);
  color: var(--text-on-orange);
  border-color: var(--az-orange);
  box-shadow: var(--shadow-orange);
}

.btn--primary:hover {
  background: var(--az-orange-light);
  border-color: var(--az-orange-light);
  box-shadow: var(--shadow-orange-lg);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.btn--ghost:hover {
  border-color: var(--az-orange);
  color: var(--az-orange);
  transform: translateY(-2px);
}

.btn svg {
  transition: transform 0.3s ease;
}

.btn:hover svg {
  transform: translateX(3px);
}

/* Trust Chips */
.hero__trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1.2rem;
  opacity: 0;
  margin-bottom: var(--space-xl);
}

.hero__trust-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  padding: 0.35em 0.75em;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.02);
}

.hero__trust-chip .star {
  color: var(--az-orange);
  font-size: 0.7rem;
}

.hero__trust-sep {
  color: var(--text-muted);
  opacity: 0.3;
  font-size: 0.5rem;
}

/* Hero Visual (Image Side) */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__image-wrap {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1 / 1;
  opacity: 0;
  transform: scale(1.05);
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  position: relative;
  z-index: 2;
}

/* Build plate grid behind image */
.hero__build-plate {
  position: absolute;
  bottom: -30px; left: -30px; right: -30px;
  height: 80px;
  z-index: 1;
  background:
    linear-gradient(to bottom, transparent 0%, rgba(244,131,46,0.03) 100%),
    repeating-linear-gradient(
      90deg,
      rgba(244,131,46,0.05) 0px,
      rgba(244,131,46,0.05) 1px,
      transparent 1px,
      transparent 30px
    ),
    repeating-linear-gradient(
      0deg,
      rgba(244,131,46,0.05) 0px,
      rgba(244,131,46,0.05) 1px,
      transparent 1px,
      transparent 30px
    );
  transform: perspective(600px) rotateX(55deg);
  transform-origin: top center;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.6), transparent);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.6), transparent);
}

/* Warm glow beneath image */
.hero__image-glow {
  position: absolute;
  bottom: -20px; left: 10%; right: 10%;
  height: 60px;
  background: radial-gradient(ellipse, rgba(244,131,46,0.12) 0%, transparent 70%);
  z-index: 0;
  filter: blur(20px);
}

/* Floating badges */
.hero__badge {
  position: absolute;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  background: rgba(17, 14, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-orange);
  border-radius: var(--radius-md);
  opacity: 0;
}

.hero__badge--tr {
  top: 8%; right: -5%;
}

.hero__badge--bl {
  bottom: 15%; left: -5%;
}

.hero__badge-icon {
  font-size: 1.1rem;
  line-height: 1;
}

.hero__badge-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.hero__badge-text strong {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.hero__badge-text span {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* Scroll Cue */
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
}

.hero__scroll-mouse {
  width: 22px;
  height: 34px;
  border: 1.5px solid var(--text-muted);
  border-radius: 11px;
  position: relative;
}

.hero__scroll-wheel {
  width: 3px;
  height: 7px;
  background: var(--az-orange);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.3; transform: translateX(-50%) translateY(8px); }
}

.hero__scroll-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}


/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet and up */
@media (min-width: 768px) {
  .hero__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    min-height: calc(100vh - 5rem);
    min-height: calc(100dvh - 5rem);
  }

  .hero__visual {
    order: 2;
  }

  .hero__content {
    order: 1;
  }

  .hero__badge--tr {
    right: -10%;
  }

  .hero__badge--bl {
    left: -10%;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .hero__inner {
    grid-template-columns: 55% 45%;
    gap: var(--space-xl);
  }

  .hero__image-wrap {
    max-width: 560px;
  }
}

/* Wide */
@media (min-width: 1440px) {
  .hero__inner {
    grid-template-columns: 52% 48%;
  }
}

/* Mobile */
@media (max-width: 767px) {
  .nav__links {
    display: none;
  }

  .nav__cta-desktop {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  .hero {
    padding-top: 4.5rem;
    padding-bottom: 4rem;
  }

  .hero__inner {
    text-align: center;
  }

  .hero__content {
    max-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero__subtext {
    max-width: 100%;
  }

  .hero__ctas {
    justify-content: center;
  }

  .hero__trust {
    justify-content: center;
  }

  .hero__image-wrap {
    max-width: 340px;
    margin-inline: auto;
  }

  .hero__badge--tr {
    right: -2%;
    top: 5%;
  }

  .hero__badge--bl {
    left: -2%;
    bottom: 10%;
  }

  .hero__build-plate {
    left: -15px; right: -15px;
    bottom: -20px;
    height: 50px;
  }

  .hero__canvas-wrap {
    opacity: 0.4;
  }

  .hero__scroll {
    display: none;
  }
}

/* Small mobile */
@media (max-width: 400px) {
  .hero__badge {
    display: none;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .hero__scroll-wheel {
    animation: none;
  }
}