:root {
  --reveal-distance: 16px;
  --reveal-duration: 650ms;
  --reveal-ease: cubic-bezier(0.2, 0.65, 0.2, 1);
}

body {
  overflow-x: hidden;
}

.hero {
  position: relative;
  overflow: hidden;
}

#hero3d-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

#hero3d {
  width: 100%;
  height: 100%;
  display: block;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(212, 175, 55, 0.12), transparent 55%),
    radial-gradient(circle at 80% 10%, rgba(255, 255, 255, 0.06), transparent 50%),
    radial-gradient(circle at 50% 70%, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.75));
  mix-blend-mode: screen;
  pointer-events: none;
  z-index: 1;
}

.hero-content,
.hero-card {
  position: relative;
  z-index: 2;
}

body.no-3d .hero {
  background: radial-gradient(circle at 20% 20%, rgba(212, 175, 55, 0.12), transparent 55%),
    radial-gradient(circle at 80% 10%, rgba(255, 255, 255, 0.06), transparent 50%),
    linear-gradient(160deg, rgba(11, 15, 31, 0.9), rgba(12, 18, 35, 0.95));
}

.reveal,
[data-reveal] {
  opacity: 0;
  transform: translateY(var(--reveal-distance));
  transition: opacity var(--reveal-duration) var(--reveal-ease),
    transform var(--reveal-duration) var(--reveal-ease);
  will-change: transform, opacity;
}

.reveal[data-reveal="left"],
[data-reveal="left"] {
  transform: translateX(calc(var(--reveal-distance) * -1));
}

.reveal[data-reveal="right"],
[data-reveal="right"] {
  transform: translateX(var(--reveal-distance));
}

.reveal[data-reveal="scale"],
[data-reveal="scale"] {
  transform: scale(0.96);
}

.reveal[data-reveal="fade"],
[data-reveal="fade"] {
  transform: translateY(0);
}

.reveal.is-visible,
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
  will-change: auto;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), #f7d27c);
  z-index: 2001;
  transition: width 0.1s linear;
}

.back-to-top {
  position: fixed;
  bottom: 96px;
  right: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(212, 175, 55, 0.5);
  background: rgba(15, 20, 39, 0.9);
  color: var(--accent);
  display: grid;
  place-items: center;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 1001;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.nav-links a {
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -60%;
  width: 50%;
  height: 200%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: translateX(0) rotate(20deg);
  transition: transform 0.6s ease;
}

.btn:hover::after {
  transform: translateX(220%) rotate(20deg);
}

.btn:active {
  transform: translateY(1px) scale(0.98);
}

.card,
.tool-card {
  transform-style: preserve-3d;
}

.card:hover,
.tool-card:hover {
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
}

.hero-card img,
.card img {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-card:hover img,
.card:hover img {
  transform: scale(1.03);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.page-transition {
  position: fixed;
  inset: 0;
  background: #0b0f1f;
  opacity: 1;
  pointer-events: none;
  z-index: 3000;
  transition: opacity 0.25s ease;
}

.page-transition.is-hidden {
  opacity: 0;
}

.page-transition.is-active {
  opacity: 1;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 2px solid rgba(212, 175, 55, 0.7);
  outline-offset: 2px;
}

input:invalid,
textarea:invalid {
  border-color: rgba(255, 107, 107, 0.7);
}

form button[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal,
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}