/* ==========================================================
   ЛУЧ — design tokens
   ========================================================== */
:root {
  --bg-primary:   #0B0D0C;
  --bg-surface:   #16191A;
  --bg-surface-2: #1C2021;
  --accent-glow:  #F0A44C;
  --accent-ember: #B5502A;
  --accent-tech:  #4FD8E0;
  --text-primary: #EDE6D9;
  --text-muted:   #8A9199;
  --line: rgba(237, 230, 217, 0.1);

  --font-display: 'Bricolage Grotesque', sans-serif;
  --font-body: 'Newsreader', serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --container: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

img { max-width: 100%; display: block; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}

/* ==========================================================
   Site background — fixed, covers the whole viewport, stays
   visible behind everything while you scroll. Shows
   images/hero-bg.jpg by default; if videos/print-timelapse.mp4
   exists and loads, it fades in on top automatically (see js/app.js).
   ========================================================== */
.media-strip {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: url('../images/hero-bg.jpg') center 35% / cover no-repeat;
}

.media-strip::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(11, 13, 12, 0.72);
  pointer-events: none;
}

.media-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s ease;
}

.media-video.is-ready {
  opacity: 1;
}


/* ==========================================================
   Signature element: cursor spotlight
   Evokes walking through a dark showroom with a lamp glow
   following you across the products.
   ========================================================== */
.spotlight {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(
    circle 420px at var(--spot-x, 50%) var(--spot-y, 20%),
    rgba(240, 164, 76, 0.10),
    rgba(240, 164, 76, 0) 70%
  );
  transition: background-position 0.05s linear;
}

@media (prefers-reduced-motion: reduce) {
  .spotlight {
    background: radial-gradient(
      circle 600px at 50% 10%,
      rgba(240, 164, 76, 0.08),
      rgba(240, 164, 76, 0) 70%
    );
  }
}

/* ==========================================================
   Header
   ========================================================== */
.site-header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px 32px;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 34px;
  letter-spacing: 0.18em;
  text-decoration: none;
  color: var(--text-primary);
}

.site-nav {
  display: flex;
  gap: 32px;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-muted);
  padding: 6px 0;
  transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent-glow);
}

/* ==========================================================
   Hero
   ========================================================== */
.hero {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 96px 32px 120px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-glow);
  margin: 0 0 28px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-glow);
  border: 1px solid rgba(240, 164, 76, 0.35);
  background: rgba(240, 164, 76, 0.06);
  padding: 8px 16px;
  border-radius: 999px;
  margin: 0 0 32px;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-glow);
  box-shadow: 0 0 0 0 rgba(240, 164, 76, 0.6);
  animation: badge-pulse 2s ease-out infinite;
}

@keyframes badge-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(240, 164, 76, 0.55); }
  70%  { box-shadow: 0 0 0 9px rgba(240, 164, 76, 0); }
  100% { box-shadow: 0 0 0 0 rgba(240, 164, 76, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .badge-dot { animation: none; }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

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

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--accent-glow);
  color: var(--accent-glow);
}

.hero-title {
  font-size: clamp(48px, 8vw, 96px);
  line-height: 0.98;
  max-width: 14ch;
  margin-bottom: 32px;
}

.hero-sub {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 20px;
  color: var(--text-muted);
  max-width: 46ch;
  margin: 0 0 40px;
}

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 16px 28px;
  border-radius: 2px;
  border: 1px solid var(--accent-glow);
  transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease;
}

.btn-primary {
  background: var(--accent-glow);
  color: var(--bg-primary);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: transparent;
  color: var(--accent-glow);
  transform: translateY(-1px);
}

/* ==========================================================
   Catalog
   ========================================================== */
.catalog {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 32px 120px;
  border-top: 1px solid var(--line);
}

.catalog-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 56px;
  margin-bottom: 48px;
}

.catalog-head h2 {
  font-size: 28px;
}

.filters {
  display: flex;
  gap: 8px;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--line);
  padding: 9px 16px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover,
.filter-btn:focus-visible {
  border-color: var(--accent-glow);
  color: var(--text-primary);
}

.filter-btn.is-active {
  background: var(--accent-glow);
  border-color: var(--accent-glow);
  color: var(--bg-primary);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.card {
  background: var(--bg-surface);
  padding: 0;
  cursor: pointer;
  border: none;
  text-align: left;
  color: inherit;
  font: inherit;
  display: flex;
  flex-direction: column;
  transition: background 0.2s ease;
  position: relative;
}

.card:hover,
.card:focus-visible {
  background: var(--bg-surface-2);
}

.card-image {
  aspect-ratio: 1;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-image img {
  transform: scale(1.04);
}

.card-body {
  padding: 20px 24px 26px;
}

.card-sku {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: 0 0 8px;
}

.card-name {
  font-size: 20px;
  margin-bottom: 6px;
}

.card-materials {
  font-family: var(--font-body);
  font-style: italic;
  color: var(--text-muted);
  font-size: 15px;
  margin: 0 0 14px;
}

.card-price {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--accent-glow);
}

.empty-state {
  font-family: var(--font-mono);
  color: var(--text-muted);
  padding: 40px 0;
  text-align: center;
}

/* ==========================================================
   3D printing service section
   ========================================================== */
.printing {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 96px 32px;
  border-top: 1px solid var(--line);
}

.printing-head {
  max-width: 640px;
  margin-bottom: 56px;
}

.printing-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  margin: 8px 0 18px;
}

.printing-sub {
  font-family: var(--font-body);
  font-style: italic;
  color: var(--text-muted);
  font-size: 19px;
  margin: 0;
}

.printing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}

.printing-item h3 {
  font-size: 17px;
  margin: 14px 0 10px;
}

.printing-item p {
  font-family: var(--font-body);
  color: var(--text-muted);
  font-size: 15px;
  margin: 0;
}

.printing-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-tech);
}

/* ==========================================================
   Footer
   ========================================================== */
.site-footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--line);
  padding: 56px 32px 32px;
}

.footer-main {
  max-width: var(--container);
  margin: 0 auto 40px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 32px;
}

.footer-logo {
  font-family: var(--font-mono);
  letter-spacing: 0.3em;
  font-size: 15px;
  margin: 0 0 8px;
}

.footer-note {
  color: var(--text-muted);
  font-style: italic;
  margin: 0;
}

.footer-contact p {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 14px;
}

.footer-contact a {
  text-decoration: none;
  color: var(--text-primary);
}

.footer-contact a:hover { color: var(--accent-glow); }

.footer-contact .label {
  display: inline-block;
  width: 90px;
  color: var(--text-muted);
}

.footer-copy {
  max-width: var(--container);
  margin: 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

/* ==========================================================
   Modal
   ========================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 10;
  background: rgba(16, 14, 11, 0.85);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-backdrop[hidden] { display: none; }

.modal {
  position: relative;
  background: var(--bg-surface);
  max-width: 880px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--line);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
}

.modal-close:hover { color: var(--accent-glow); border-color: var(--accent-glow); }

.modal-image {
  background: var(--bg-primary);
}

.modal-body {
  padding: 40px 36px;
}

.modal-sku {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin: 0 0 12px;
}

.modal-body h3 {
  font-size: 30px;
  margin-bottom: 10px;
}

.modal-price {
  font-family: var(--font-mono);
  color: var(--accent-glow);
  font-size: 18px;
  margin: 0 0 20px;
}

.modal-desc {
  color: var(--text-muted);
  font-style: italic;
  font-size: 17px;
  margin: 0 0 28px;
}

.modal-specs {
  display: grid;
  gap: 12px;
  margin: 0 0 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.modal-specs div {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 13px;
}

.modal-specs dt { color: var(--text-muted); margin: 0; }
.modal-specs dd { margin: 0; text-align: right; }

/* ==========================================================
   Responsive
   ========================================================== */
@media (max-width: 860px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .modal { grid-template-columns: 1fr; }
  .printing-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .site-header { padding: 16px 20px; }
  .site-nav { gap: 14px; flex-wrap: wrap; }
  .site-nav a { font-size: 11px; }
  .hero { padding: 48px 20px 64px; }
  .hero-title { font-size: clamp(38px, 11vw, 64px); max-width: 100%; }
  .hero-sub { font-size: 17px; }
  .badge { font-size: 11px; padding: 7px 14px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { text-align: center; }
  .catalog { padding: 0 20px 80px; }
  .catalog-head { padding-top: 40px; }
  .grid { grid-template-columns: 1fr; }
  .printing { padding: 48px 20px; }
  .printing-head { margin-bottom: 40px; }
  .printing-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-main { flex-direction: column; gap: 24px; }
  .footer-contact .label { display: block; width: auto; margin-bottom: 2px; }
  .modal-body { padding: 28px 22px; }
  .modal-body h3 { font-size: 24px; }
}

@media (max-width: 380px) {
  .hero-title { font-size: clamp(32px, 12vw, 56px); }
  .logo { font-size: 24px; letter-spacing: 0.12em; }
}

/* Comfortable tap targets on touch devices */
@media (hover: none) and (pointer: coarse) {
  .filter-btn { padding: 11px 18px; }
  .card { cursor: default; }
  .modal-close { width: 44px; height: 44px; }
}

/* Keyboard focus visibility */
:focus-visible {
  outline: 2px solid var(--accent-glow);
  outline-offset: 2px;
}