@import url('https://fonts.googleapis.com/css2?family=Russo+One&family=Orbitron:wght@400;600;700;900&family=Exo+2:ital,wght@0,300;0,400;0,500;0,600;1,400&display=swap');

/* ═══════════════════════════════════════════
   CSS CUSTOM PROPERTIES
═══════════════════════════════════════════ */
:root {
  --bg-deep:    #0f172a;  /* мягче, чем #080b14 */
  --bg-dark:    #1a1f35;
  --bg-card:    #1e293b;  /* мягче, чем #121827 */
  --bg-card2:   #2d3a4f;  /* мягче, чем #161e30 */
  --border:     rgba(0, 240, 255, 0.12);
  --border-h:   rgba(0, 240, 255, 0.35);
  --cyan:       #00f0ff;  /* ярче, чем #00e5ff */
  --cyan-dim:   #00b4cc;
  --cyan-glow:  rgba(0, 240, 255, 0.15);
  --orange:     #ff6600;
  --orange-dim: #cc5200;
  --orange-glow:rgba(255, 102, 0, 0.15);
  --text:       #e2e8f0;
  --text-muted: #94a3b8;  /* светлее для читаемости */
  --text-dim:   #64748b;
  --success:    #00ff88;
  --error:      #ff4444;
  --radius:     10px;
  --radius-lg:  18px;
  --shadow:     0 4px 24px rgba(0,0,0,0.5);
  --shadow-glow:0 0 30px rgba(0, 240, 255, 0.12);
  --font-head:  'Russo One', 'Orbitron', sans-serif;
  --font-tech:  'Orbitron', monospace;
  --font-body:  'Exo 2', sans-serif;
  --nav-h:      70px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ═══════════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* Geometric background pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

/* ═══════════════════════════════════════════
   SCROLLBAR
═══════════════════════════════════════════ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--cyan-dim); border-radius: 3px; }

/* ═══════════════════════════════════════════
   NAVIGATION
═══════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  z-index: 1000;
  transition: var(--transition);
}
#navbar.scrolled {
  background: rgba(15, 23, 42, 0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.nav-inner {
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-tech);
  font-size: clamp(1rem, 2vw, 1.1rem);
  font-weight: 700;
  color: var(--cyan);
  white-space: nowrap;
}
.nav-logo svg { width: 36px; height: 36px; flex-shrink: 0; }
.nav-logo span { letter-spacing: 0.05em; }
.nav-logo span b { color: var(--orange); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  font-size: clamp(0.75rem, 1.5vw, 0.82rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 8px 12px;
  border-radius: 6px;
  transition: var(--transition);
  position: relative;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--cyan);
  background: var(--cyan-glow);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--cyan);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lang-switcher {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.lang-switcher button {
  padding: 6px 12px;
  font-size: clamp(0.7rem, 1.2vw, 0.78rem);
  font-weight: 600;
  font-family: var(--font-head);
  letter-spacing: 0.08em;
  color: var(--text-muted);
  transition: var(--transition);
}
.lang-switcher button.active {
  background: var(--cyan);
  color: var(--bg-deep);
}
.lang-switcher button:not(.active):hover { color: var(--text); background: var(--bg-card2); }

.cart-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: clamp(0.75rem, 1.5vw, 0.82rem);
  font-weight: 500;
  transition: var(--transition);
  min-width: 48px;
  min-height: 48px;
}
.cart-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.cart-count {
  position: absolute;
  top: -6px; right: -6px;
  min-width: 18px; height: 18px;
  background: var(--orange);
  border-radius: 9px;
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  color: white;
  opacity: 0;
  transform: scale(0);
  transition: var(--transition);
}
.cart-count.visible { opacity: 1; transform: scale(1); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 6px;
  transition: var(--transition);
  min-width: 48px;
  min-height: 48px;
}
.hamburger:hover { background: var(--bg-card); }
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-muted);
  border-radius: 1px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav - side drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  width: 280px;
  height: calc(100vh - var(--nav-h));
  background: rgba(15, 23, 42, 0.97);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--border);
  padding: 20px 24px;
  z-index: 999;
  flex-direction: column;
  gap: 8px;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav a {
  display: block;
  padding: 16px 20px;
  border-radius: 12px;
  font-size: 1rem;
  color: var(--text-muted);
  transition: var(--transition);
  min-height: 56px;
}
.mobile-nav a:hover, .mobile-nav a.active { color: var(--cyan); background: var(--cyan-glow); }

/* ═══════════════════════════════════════════
   MAIN CONTENT
═══════════════════════════════════════════ */
#main {
  padding-top: var(--nav-h);
  min-height: calc(100vh - var(--nav-h));
  position: relative;
  z-index: 1;
}

.page { display: none; animation: pageFadeIn 0.4s ease forwards; }
.page.active { display: block; }

@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════
   HERO SECTION
═══════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 70% 50%, rgba(0, 240, 255, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 50% 70% at 20% 80%, rgba(255, 102, 0, 0.05) 0%, transparent 60%);
}

/* УЛУЧШЕННАЯ ГЕОМЕТРИЧЕСКАЯ АНИМАЦИЯ */
.hero-geometry {
  position: absolute;
  right: 0;
  top: 0;
  width: 60%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
  perspective: 1000px;
}

/* Вращающийся тор (пончик) */
.hero-torus {
  position: absolute;
  right: 5%;
  top: 15%;
  width: 400px;
  height: 400px;
  animation: rotateTorus 25s linear infinite;
  transform-style: preserve-3d;
}

.hero-torus::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
  opacity: 0.3;
  animation: pulseTorus 3s ease-in-out infinite;
}

.hero-torus::after {
  content: '';
  position: absolute;
  inset: 30px;
  border: 2px dashed var(--orange);
  border-radius: 50%;
  opacity: 0.2;
  animation: rotateReverse 15s linear infinite;
}

/* Сфера с сеткой */
.hero-sphere {
  position: absolute;
  right: 20%;
  bottom: 10%;
  width: 250px;
  height: 250px;
  animation: floatSphere 8s ease-in-out infinite;
  transform-style: preserve-3d;
}

.hero-sphere::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, 
    rgba(0, 240, 255, 0.15) 0%, 
    transparent 70%);
  animation: rotateSphere 20s linear infinite;
}

.hero-sphere::after {
  content: '';
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(255, 102, 0, 0.2);
  border-radius: 50%;
  transform: rotateY(45deg);
}

/* Геодезическая линия (икосаэдр) */
.hero-geodesic {
  position: absolute;
  left: 10%;
  top: 20%;
  width: 300px;
  height: 300px;
  animation: rotateGeodesic 30s linear infinite;
  transform-style: preserve-3d;
}

.geodesic-line {
  position: absolute;
  inset: 0;
  border: 1px solid var(--cyan);
  opacity: 0.15;
  transform-style: preserve-3d;
  border-radius: 50%;
}

.geodesic-line:nth-child(1) { transform: rotateX(0deg) rotateY(0deg); }
.geodesic-line:nth-child(2) { transform: rotateX(60deg) rotateY(0deg); }
.geodesic-line:nth-child(3) { transform: rotateX(120deg) rotateY(0deg); }
.geodesic-line:nth-child(4) { transform: rotateY(60deg) rotateX(30deg); }
.geodesic-line:nth-child(5) { transform: rotateY(120deg) rotateX(-30deg); }
.geodesic-line:nth-child(6) { transform: rotateZ(45deg) rotateX(45deg); }

/* Кубическая решетка */
.hero-cube-grid {
  position: absolute;
  left: 15%;
  bottom: 15%;
  width: 200px;
  height: 200px;
  animation: rotateCubeGrid 20s linear infinite;
  transform-style: preserve-3d;
}

.cube-line {
  position: absolute;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.15;
}

.cube-line.horizontal {
  width: 100%;
  height: 1px;
  top: 50%;
  transform: translateY(-50%);
}

.cube-line.vertical {
  width: 1px;
  height: 100%;
  left: 50%;
  transform: translateX(-50%);
}

.cube-line.depth {
  width: 100%;
  height: 1px;
  transform: rotateX(90deg) translateY(-50%);
  transform-origin: center;
}

/* Парящие частицы */
.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--cyan);
  border-radius: 50%;
  animation: floatParticle 20s linear infinite;
  opacity: 0.4;
  box-shadow: 0 0 10px var(--cyan);
}

.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 30%; top: 60%; animation-delay: -2s; width: 2px; height: 2px; background: var(--orange); }
.particle:nth-child(3) { left: 50%; top: 30%; animation-delay: -4s; width: 4px; height: 4px; }
.particle:nth-child(4) { left: 70%; top: 70%; animation-delay: -6s; width: 2px; height: 2px; background: var(--orange); }
.particle:nth-child(5) { left: 90%; top: 40%; animation-delay: -8s; width: 3px; height: 3px; }
.particle:nth-child(6) { left: 20%; top: 80%; animation-delay: -10s; width: 2px; height: 2px; }
.particle:nth-child(7) { left: 60%; top: 10%; animation-delay: -12s; width: 4px; height: 4px; background: var(--orange); }
.particle:nth-child(8) { left: 80%; top: 50%; animation-delay: -14s; width: 3px; height: 3px; }
.particle:nth-child(9) { left: 40%; top: 40%; animation-delay: -16s; width: 2px; height: 2px; }
.particle:nth-child(10) { left: 15%; top: 45%; animation-delay: -18s; width: 3px; height: 3px; background: var(--orange); }

/* Светящиеся линии */
.hero-glow-line {
  position: absolute;
  right: 10%;
  top: 30%;
  width: 300px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--orange), transparent);
  filter: blur(3px);
  opacity: 0.2;
  transform: rotate(-15deg);
  animation: moveGlowLine 15s ease-in-out infinite;
}

.hero-glow-line:nth-child(2) {
  right: 15%;
  top: 60%;
  width: 200px;
  transform: rotate(25deg);
  animation-delay: -5s;
  background: linear-gradient(90deg, transparent, var(--orange), var(--cyan), transparent);
}

/* АНИМАЦИИ ГЕОМЕТРИИ */
@keyframes rotateTorus {
  0% { transform: rotate3d(1, 1, 0, 0deg) scale(1); }
  50% { transform: rotate3d(1, 1, 0, 180deg) scale(1.1); }
  100% { transform: rotate3d(1, 1, 0, 360deg) scale(1); }
}

@keyframes rotateReverse {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}

@keyframes pulseTorus {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.15); box-shadow: 0 0 60px rgba(0, 240, 255, 0.5); }
}

@keyframes floatSphere {
  0%, 100% { 
    transform: translateY(0px) rotate3d(1, 0, 0, 0deg) scale(1); 
  }
  25% { 
    transform: translateY(-40px) rotate3d(1, 0, 0, 15deg) scale(1.05); 
  }
  75% { 
    transform: translateY(40px) rotate3d(1, 0, 0, -15deg) scale(0.95); 
  }
}

@keyframes rotateSphere {
  from { transform: rotate3d(0, 1, 0, 0deg); }
  to { transform: rotate3d(0, 1, 0, 360deg); }
}

@keyframes rotateGeodesic {
  0% { transform: rotate3d(1, 1, 1, 0deg) scale(1); }
  33% { transform: rotate3d(1, 1, 1, 120deg) scale(1.1); }
  66% { transform: rotate3d(1, 1, 1, 240deg) scale(0.9); }
  100% { transform: rotate3d(1, 1, 1, 360deg) scale(1); }
}

@keyframes rotateCubeGrid {
  0% { transform: rotate3d(1, 0, 1, 0deg); }
  25% { transform: rotate3d(1, 0, 1, 90deg); }
  50% { transform: rotate3d(1, 0, 1, 180deg); }
  75% { transform: rotate3d(1, 0, 1, 270deg); }
  100% { transform: rotate3d(1, 0, 1, 360deg); }
}

@keyframes floatParticle {
  0% {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 0.4;
  }
  25% {
    transform: translateY(-150px) translateX(80px) scale(2);
    opacity: 0.8;
  }
  50% {
    transform: translateY(-300px) translateX(0) scale(3);
    opacity: 0.4;
  }
  75% {
    transform: translateY(-450px) translateX(-80px) scale(2);
    opacity: 0.8;
  }
  100% {
    transform: translateY(-600px) translateX(0) scale(0);
    opacity: 0;
  }
}

@keyframes moveGlowLine {
  0%, 100% { 
    opacity: 0.1; 
    transform: rotate(-15deg) translateX(-50px);
  }
  50% { 
    opacity: 0.4; 
    transform: rotate(-15deg) translateX(50px);
  }
}

.hero-inner {
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 80px 24px;
  position: relative;
  z-index: 2;
}
.hero-content { max-width: 620px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--cyan-glow);
  border: 1px solid var(--border-h);
  border-radius: 30px;
  font-size: clamp(0.7rem, 1.5vw, 0.78rem);
  font-weight: 500;
  color: var(--cyan);
  letter-spacing: 0.06em;
  margin-bottom: 24px;
  animation: fadeUp 0.6s ease both 0.1s;
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  white-space: pre-line;
  margin-bottom: 24px;
  animation: fadeUp 0.6s ease both 0.2s;
}
.hero-title span { color: var(--cyan); }
.hero-sub {
  font-size: clamp(0.9rem, 1.5vw, 1.15rem);
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 500px;
  animation: fadeUp 0.6s ease both 0.3s;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 56px;
  animation: fadeUp 0.6s ease both 0.4s;
}
.hero-stats {
  display: flex;
  gap: 40px;
  animation: fadeUp 0.6s ease both 0.5s;
}
.hero-stat-item { text-align: left; }
.hero-stat-num {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 2.5vw, 1.8rem);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}
.hero-stat-label { 
  font-size: clamp(0.7rem, 1.2vw, 0.78rem); 
  color: var(--text-muted); 
  margin-top: 4px; 
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════
   BUTTONS С УЛУЧШЕННЫМИ АНИМАЦИЯМИ
═══════════════════════════════════════════ */
.btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: clamp(0.8rem, 1.5vw, 0.88rem);
  font-weight: 600;
  font-family: var(--font-body);
  letter-spacing: 0.04em;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
  min-width: 48px;
  min-height: 48px;
}

/* Ripple эффект */
.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, 0.5);
  opacity: 0;
  border-radius: 100%;
  transform: scale(1, 1) translate(-50%);
  transform-origin: 50% 50%;
}

.btn:focus:not(:active)::after {
  animation: ripple 1s ease-out;
}

@keyframes ripple {
  0% {
    transform: scale(0, 0);
    opacity: 0.5;
  }
  20% {
    transform: scale(25, 25);
    opacity: 0.3;
  }
  100% {
    opacity: 0;
    transform: scale(40, 40);
  }
}

/* Loading spinner */
.btn.loading {
  pointer-events: none;
  opacity: 0.8;
}

.btn.loading .btn-text {
  opacity: 0;
}

.btn.loading::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-right-color: currentColor;
  border-radius: 50%;
  animation: button-loading-spinner 0.75s linear infinite;
}

@keyframes button-loading-spinner {
  from { transform: rotate(0turn); }
  to { transform: rotate(1turn); }
}

.btn-primary {
  background: var(--cyan);
  color: var(--bg-deep);
}
.btn-primary:hover {
  background: #33ecff;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
  transform: translateY(-2px) scale(1.02);
}
.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border-h);
  color: var(--text);
}
.btn-secondary:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-glow);
  transform: translateY(-2px) scale(1.02);
}
.btn-secondary:active {
  transform: translateY(0) scale(0.98);
}

.btn-orange {
  background: var(--orange);
  color: white;
}
.btn-orange:hover {
  background: #ff8533;
  box-shadow: 0 0 20px var(--orange-glow);
  transform: translateY(-2px) scale(1.02);
}
.btn-orange:active {
  transform: translateY(0) scale(0.98);
}

.btn-sm { padding: 8px 16px; font-size: clamp(0.75rem, 1.2vw, 0.8rem); min-height: 40px; }
.btn-lg { padding: 15px 32px; font-size: clamp(0.9rem, 1.8vw, 0.95rem); min-height: 56px; }
.btn-full { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ═══════════════════════════════════════════
   SECTION LAYOUT
═══════════════════════════════════════════ */
.section {
  padding: 80px 0;
}
.section-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  font-size: clamp(0.65rem, 1.2vw, 0.72rem);
  font-weight: 600;
  font-family: var(--font-head);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.section-sub {
  font-size: clamp(0.9rem, 1.5vw, 1rem);
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto;
}

/* ═══════════════════════════════════════════
   PRODUCT CARDS С УЛУЧШЕННЫМИ АНИМАЦИЯМИ
═══════════════════════════════════════════ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.product-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  border-color: var(--border-h);
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
}
.product-thumb {
  width: 100%;
  height: 200px;
  background: var(--bg-card2);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-thumb img {
  transform: scale(1.1);
}
.product-thumb svg {
  width: 160px;
  height: 160px;
  transition: transform 0.4s ease;
}
.product-card:hover .product-thumb svg { transform: scale(1.1) rotate(5deg); }
.product-thumb-bg {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.product-card:hover .product-thumb-bg { opacity: 1; }
.product-badge {
  position: absolute;
  top: 10px; left: 10px;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  backdrop-filter: blur(4px);
}
.badge-instock { background: rgba(0, 255, 136, 0.15); color: var(--success); border: 1px solid rgba(0,255,136,0.3); }
.badge-outstock { background: rgba(255, 68, 68, 0.15); color: var(--error); border: 1px solid rgba(255,68,68,0.3); }

.product-info { 
  padding: 16px;
  transition: transform 0.3s ease;
  flex: 1;
}
.product-card:hover .product-info {
  transform: translateY(-4px);
}
.product-name {
  font-size: clamp(0.85rem, 1.5vw, 0.9rem);
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-desc {
  font-size: clamp(0.75rem, 1.2vw, 0.8rem);
  color: var(--text-muted);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.product-price {
  font-family: var(--font-head);
  font-size: clamp(1rem, 1.8vw, 1.1rem);
  font-weight: 700;
  color: var(--cyan);
  transition: transform 0.3s ease;
}
.product-card:hover .product-price {
  transform: scale(1.05);
  color: #33ecff;
}
.product-material {
  font-size: clamp(0.65rem, 1vw, 0.72rem);
  color: var(--text-dim);
  background: var(--bg-card2);
  padding: 3px 8px;
  border-radius: 4px;
}
.product-actions {
  display: flex;
  gap: 8px;
  padding: 0 16px 16px;
  transition: transform 0.3s ease;
}
.product-card:hover .product-actions {
  transform: translateY(-2px);
}
.product-actions .btn { 
  flex: 1; 
  font-size: clamp(0.75rem, 1.2vw, 0.8rem); 
  padding: 9px 12px;
  transition: all 0.3s ease;
}
.product-actions .btn:hover {
  transform: scale(1.02);
}

/* ═══════════════════════════════════════════
   FEATURES GRID (Stagger animation)
═══════════════════════════════════════════ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUpStagger 0.6s ease forwards;
}
.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }

@keyframes fadeUpStagger {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-card:hover {
  border-color: var(--border-h);
  background: var(--bg-card2);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
}
.feature-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.5rem;
  transition: transform 0.3s ease;
}
.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}
.feature-icon.cyan { background: var(--cyan-glow); border: 1px solid rgba(0,240,255,0.2); }
.feature-icon.orange { background: var(--orange-glow); border: 1px solid rgba(255,102,0,0.2); }
.feature-title { 
  font-weight: 600; 
  margin-bottom: 8px; 
  font-size: clamp(0.9rem, 1.5vw, 0.95rem); 
}
.feature-desc { 
  font-size: clamp(0.78rem, 1.2vw, 0.83rem); 
  color: var(--text-muted); 
  line-height: 1.6; 
}

/* ═══════════════════════════════════════════
   CATALOG PAGE
═══════════════════════════════════════════ */
.catalog-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
  padding: 16px 20px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.search-box {
  flex: 1;
  min-width: 200px;
  position: relative;
}
.search-box input {
  width: 100%;
  padding: 12px 16px 12px 40px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: clamp(0.8rem, 1.5vw, 0.88rem);
  transition: var(--transition);
  outline: none;
  min-height: 48px;
}
.search-box input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-glow); }
.search-box::before {
  content: '🔍';
  position: absolute;
  left: 12px;
  top: 50%; transform: translateY(-50%);
  font-size: 0.9rem;
  pointer-events: none;
}
.sort-select {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: clamp(0.8rem, 1.5vw, 0.85rem);
  color: var(--text-muted);
}
.sort-select select {
  padding: 11px 14px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: clamp(0.8rem, 1.5vw, 0.85rem);
  cursor: pointer;
  outline: none;
  transition: var(--transition);
  min-height: 48px;
}
.sort-select select:focus { border-color: var(--cyan); }

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.filter-tab {
  padding: 8px 18px;
  border-radius: 30px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: clamp(0.75rem, 1.2vw, 0.82rem);
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  min-height: 40px;
}
.filter-tab:hover { border-color: var(--border-h); color: var(--text); transform: translateY(-2px); }
.filter-tab.active { background: var(--cyan); border-color: var(--cyan); color: var(--bg-deep); font-weight: 600; }

.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 1rem;
}
.no-results svg { width: 64px; height: 64px; margin: 0 auto 16px; opacity: 0.3; }

/* ═══════════════════════════════════════════
   CART
═══════════════════════════════════════════ */
.cart-page { max-width: 900px; margin: 0 auto; }
.cart-items { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.cart-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  transition: var(--transition);
}
.cart-item:hover { 
  border-color: var(--border-h); 
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.1);
}
.cart-item-thumb {
  width: 80px;
  height: 80px;
  background: var(--bg-card2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}
.cart-item-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cart-item-thumb svg { width: 60px; height: 60px; }
.cart-item-info { flex: 1; min-width: 0; }
.cart-item-name { 
  font-weight: 600; 
  margin-bottom: 4px; 
  font-size: clamp(0.85rem, 1.5vw, 0.9rem); 
}
.cart-item-meta { 
  font-size: clamp(0.7rem, 1.2vw, 0.78rem); 
  color: var(--text-muted); 
}
.cart-item-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.qty-control {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.qty-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.qty-btn:hover { color: var(--cyan); background: var(--cyan-glow); }
.qty-num {
  min-width: 40px;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  line-height: 40px;
}
.cart-item-price { 
  font-family: var(--font-head); 
  color: var(--cyan); 
  font-weight: 700;
  font-size: clamp(0.9rem, 1.5vw, 1rem); 
}
.cart-remove-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  font-size: 0.75rem;
  font-family: var(--font-body);
  color: var(--text-dim);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.cart-remove-btn:hover {
  color: var(--error);
  background: rgba(255, 68, 68, 0.08);
  border-color: rgba(255, 68, 68, 0.25);
}
.cart-remove-btn span { font-size: 0.72rem; }

.cart-summary {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.cart-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: clamp(0.85rem, 1.5vw, 0.9rem);
}
.cart-total-row.main {
  border-bottom: none;
  margin-top: 8px;
  font-size: clamp(1rem, 1.8vw, 1.1rem);
  font-weight: 700;
}
.cart-total-row.main span:last-child { 
  font-family: var(--font-head); 
  color: var(--cyan); 
  font-size: clamp(1.2rem, 2vw, 1.3rem); 
}
.cart-actions { 
  display: flex; 
  gap: 12px; 
  margin-top: 20px; 
  flex-wrap: wrap;
}
.cart-actions .btn {
  flex: 1;
  min-width: 160px;
}

.cart-empty-state {
  text-align: center;
  padding: 80px 20px;
}
.cart-empty-icon { font-size: 4rem; margin-bottom: 16px; opacity: 0.3; }
.cart-empty-state h3 { font-size: clamp(1.2rem, 2vw, 1.3rem); margin-bottom: 8px; }
.cart-empty-state p { color: var(--text-muted); margin-bottom: 24px; }

/* Checkout Form */
.checkout-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.checkout-overlay.open { opacity: 1; pointer-events: all; }
.checkout-modal {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-h);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(20px);
  transition: transform 0.3s ease;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.checkout-overlay.open .checkout-modal { transform: scale(1) translateY(0); }
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}
.modal-header h3 { font-family: var(--font-head); font-size: clamp(0.9rem, 1.5vw, 1rem); color: var(--cyan); }
.modal-close {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
}
.modal-close:hover { border-color: var(--error); color: var(--error); }

/* ═══════════════════════════════════════════
   FORMS
═══════════════════════════════════════════ */
.form-grid { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: clamp(0.75rem, 1.2vw, 0.8rem);
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
.form-group label .req { color: var(--orange); margin-left: 3px; }
.form-control {
  padding: 12px 16px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: clamp(0.8rem, 1.5vw, 0.88rem);
  transition: var(--transition);
  outline: none;
  width: 100%;
  min-height: 48px;
}
.form-control:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-glow); }
.form-control::placeholder { color: var(--text-dim); }
.form-control.error { border-color: var(--error); }
textarea.form-control { 
  min-height: 110px; 
  resize: vertical; 
}
select.form-control { cursor: pointer; }
.form-error { font-size: 0.75rem; color: var(--error); margin-top: 2px; }

/* File Upload */
.upload-zone {
  border: 2px dashed var(--border-h);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  background: var(--bg-card2);
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--cyan);
  background: var(--cyan-glow);
}
.upload-icon { font-size: 2.5rem; margin-bottom: 12px; }
.upload-title { 
  font-weight: 600; 
  margin-bottom: 6px; 
  font-size: clamp(0.9rem, 1.5vw, 1rem); 
}
.upload-desc { 
  font-size: clamp(0.75rem, 1.2vw, 0.82rem); 
  color: var(--text-muted); 
  margin-bottom: 16px; 
}
.upload-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.file-selected {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(0, 255, 136, 0.08);
  border: 1px solid rgba(0, 255, 136, 0.2);
  border-radius: var(--radius);
  font-size: clamp(0.8rem, 1.5vw, 0.85rem);
  color: var(--success);
  margin-top: 12px;
  width: 100%;
}

/* Form sections */
.form-section {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 20px;
}
.form-section-title {
  font-family: var(--font-head);
  font-size: clamp(0.8rem, 1.5vw, 0.85rem);
  color: var(--cyan);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.form-section-title::before {
  content: '';
  display: block;
  width: 3px; height: 16px;
  background: var(--cyan);
  border-radius: 2px;
}
.form-section-num {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--cyan-glow);
  border: 1px solid var(--border-h);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cyan);
}

/* Alert / Toast */
.alert {
  padding: 16px 20px;
  border-radius: var(--radius);
  font-size: clamp(0.8rem, 1.5vw, 0.88rem);
  font-weight: 500;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  backdrop-filter: blur(4px);
}
.alert-success { background: rgba(0,255,136,0.08); border: 1px solid rgba(0,255,136,0.2); color: var(--success); }
.alert-error { background: rgba(255,68,68,0.08); border: 1px solid rgba(255,68,68,0.2); color: var(--error); }

/* ═══════════════════════════════════════════
   ABOUT PAGE
═══════════════════════════════════════════ */
.about-hero {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card2) 100%);
  border-bottom: 1px solid var(--border);
  padding: 60px 0;
  text-align: center;
}
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
}
.about-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.8;
  font-size: clamp(0.9rem, 1.5vw, 0.95rem);
}
.about-mission {
  background: var(--cyan-glow);
  border: 1px solid var(--border-h);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 24px;
  backdrop-filter: blur(4px);
}
.about-mission-title { font-weight: 600; color: var(--cyan); margin-bottom: 10px; }
.about-mission p { color: var(--text-muted); margin: 0; font-size: 0.9rem; }

.about-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
}
.about-card h4 { 
  font-family: var(--font-head); 
  font-size: clamp(0.8rem, 1.5vw, 0.85rem); 
  color: var(--cyan); 
  margin-bottom: 16px; 
  letter-spacing: 0.08em; 
}
.printer-list { display: flex; flex-direction: column; gap: 10px; }
.printer-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: clamp(0.8rem, 1.5vw, 0.88rem);
  color: var(--text-muted);
}
.printer-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  flex-shrink: 0;
}
.cert-list { display: flex; flex-direction: column; gap: 10px; }
.cert-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: clamp(0.8rem, 1.5vw, 0.88rem);
  color: var(--text-muted);
}
.cert-check { color: var(--success); font-size: 1rem; flex-shrink: 0; }

.team-grid { 
  display: grid; 
  grid-template-columns: repeat(3, 1fr); 
  gap: 20px; 
}
@media (max-width: 768px) {
  .team-grid { grid-template-columns: 1fr; }
}
.team-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}
.team-card:hover { 
  border-color: var(--border-h); 
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
}
.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  border: 2px solid var(--border-h);
  transition: transform 0.3s ease;
}
.team-card:hover .team-avatar {
  transform: scale(1.1);
}
.team-name { 
  font-weight: 600; 
  margin-bottom: 4px;
  font-size: clamp(0.9rem, 1.5vw, 1rem); 
}
.team-role { 
  font-size: clamp(0.75rem, 1.2vw, 0.8rem); 
  color: var(--cyan); 
}

/* ═══════════════════════════════════════════
   CONTACT PAGE
═══════════════════════════════════════════ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 32px;
  align-items: start;
}
@media (max-width: 1024px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: var(--transition);
}
.contact-card:hover { 
  border-color: var(--border-h);
  transform: translateY(-2px);
}
.contact-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--cyan-glow);
  border: 1px solid var(--border-h);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.contact-card-label { 
  font-size: 0.7rem; 
  color: var(--text-dim); 
  margin-bottom: 4px; 
  font-weight: 600; 
  letter-spacing: 0.06em; 
  text-transform: uppercase; 
}
.contact-card-value { 
  font-size: clamp(0.85rem, 1.5vw, 0.9rem); 
  font-weight: 500;
}
.contact-card-sub { 
  font-size: 0.8rem; 
  color: var(--text-muted); 
  margin-top: 4px; 
}

.social-links { 
  display: flex; 
  gap: 10px; 
  flex-wrap: wrap; 
  margin-top: 8px; 
}
.social-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: clamp(0.75rem, 1.2vw, 0.82rem);
  color: var(--text-muted);
  transition: var(--transition);
  min-height: 48px;
}
.social-link:hover { 
  border-color: var(--cyan); 
  color: var(--cyan);
  transform: translateY(-2px);
}

.contact-form-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}
.contact-form-title {
  font-family: var(--font-head);
  font-size: clamp(0.85rem, 1.5vw, 0.9rem);
  color: var(--cyan);
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

/* ═══════════════════════════════════════════
   PAGE HEADER
═══════════════════════════════════════════ */
.page-header {
  background: linear-gradient(180deg, var(--bg-card) 0%, transparent 100%);
  border-bottom: 1px solid var(--border);
  padding: 48px 0 40px;
  margin-bottom: 0;
}
.page-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.page-header h1 { 
  font-family: var(--font-head); 
  font-size: clamp(1.4rem, 3vw, 2.2rem); 
  font-weight: 700; 
  margin-bottom: 8px; 
}
.page-header p { 
  color: var(--text-muted); 
  font-size: clamp(0.9rem, 1.5vw, 0.95rem); 
}
.page-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 16px;
}
.page-breadcrumb a { color: var(--cyan); }
.page-breadcrumb span { opacity: 0.4; }

/* ═══════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════ */
footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 56px 0 24px;
  margin-top: 80px;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 40px;
}
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}
.footer-brand { }
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: clamp(0.9rem, 1.8vw, 1rem);
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 14px;
}
.footer-logo svg { width: 32px; height: 32px; }
.footer-desc { 
  font-size: clamp(0.8rem, 1.5vw, 0.85rem); 
  color: var(--text-muted); 
  line-height: 1.7; 
  max-width: 260px; 
}
.footer-col h5 {
  font-size: clamp(0.7rem, 1.2vw, 0.78rem);
  font-weight: 700;
  font-family: var(--font-head);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 16px;
}
.footer-links-list { display: flex; flex-direction: column; gap: 12px; }
.footer-links-list a { 
  font-size: clamp(0.8rem, 1.5vw, 0.85rem); 
  color: var(--text-muted); 
  transition: color 0.2s;
  padding: 4px 0;
  display: inline-block;
}
.footer-links-list a:hover { color: var(--cyan); transform: translateX(4px); }
.footer-contact-list { display: flex; flex-direction: column; gap: 12px; }
.footer-contact-item { 
  display: flex; 
  align-items: flex-start; 
  gap: 10px; 
  font-size: clamp(0.78rem, 1.5vw, 0.83rem); 
  color: var(--text-muted); 
}
.footer-contact-item span:first-child { color: var(--cyan); flex-shrink: 0; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 12px;
}

/* ═══════════════════════════════════════════
   TOAST NOTIFICATION
═══════════════════════════════════════════ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--bg-card2);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-h);
  border-radius: var(--radius-lg);
  font-size: clamp(0.8rem, 1.5vw, 0.85rem);
  max-width: 320px;
  box-shadow: var(--shadow);
  animation: toastIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
.toast.success { border-color: rgba(0,255,136,0.3); }
.toast.success .toast-icon { color: var(--success); }
.toast-icon { font-size: 1.1rem; flex-shrink: 0; }
@keyframes toastIn {
  from { transform: translateX(120%) scale(0.9); opacity: 0; }
  to   { transform: translateX(0) scale(1); opacity: 1; }
}
@keyframes toastOut {
  from { transform: translateX(0) scale(1); opacity: 1; }
  to   { transform: translateX(120%) scale(0.9); opacity: 0; }
}
.toast.removing { animation: toastOut 0.25s ease forwards; }

/* ═══════════════════════════════════════════
   ORDER PAGE SPECIFICS
═══════════════════════════════════════════ */
.order-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  align-items: start;
}
@media (max-width: 1024px) {
  .order-layout { grid-template-columns: 1fr; }
}
.order-sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 20px);
}
@media (max-width: 1024px) {
  .order-sidebar { position: static; }
}
.order-info-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 16px;
}
.order-info-card h4 { 
  font-weight: 600; 
  margin-bottom: 14px; 
  font-size: clamp(0.85rem, 1.5vw, 0.9rem); 
}
.info-list { display: flex; flex-direction: column; gap: 10px; }
.info-item { 
  display: flex; 
  align-items: flex-start; 
  gap: 10px; 
  font-size: clamp(0.77rem, 1.2vw, 0.82rem); 
  color: var(--text-muted); 
}
.info-dot { color: var(--cyan); flex-shrink: 0; font-weight: 700; margin-top: 2px; }

/* ═══════════════════════════════════════════
   DIVIDERS & HELPERS
═══════════════════════════════════════════ */
.divider {
  height: 1px;
  background: var(--border);
  margin: 32px 0;
}
.text-cyan { color: var(--cyan); }
.text-orange { color: var(--orange); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }

/* ═══════════════════════════════════════════
   RESPONSIVE (Mobile-first)
═══════════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: flex; }
  /* Hide heavy 3D elements on mobile but KEEP particles */
  .hero-torus, .hero-sphere, .hero-geodesic, .hero-cube-grid, .hero-glow-line { display: none; }
  .hero-particles { display: block !important; }
  .hero-geometry { display: block !important; } /* override old hide */
  .hero-inner { padding: 48px 20px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; }
  .section { padding: 56px 0; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .products-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .catalog-controls { flex-direction: column; align-items: stretch; }
  .cart-actions { flex-direction: column; }
  .cart-actions .btn { width: 100%; }
  /* Process section on mobile */
  .process-grid { flex-direction: column; gap: 0; }
  .process-connector { transform: rotate(90deg); width: 60px; margin: 0 auto; }
  /* Materials grid */
  .materials-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .features-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .materials-grid { grid-template-columns: 1fr; }
  .cart-item { 
    flex-wrap: wrap; 
    flex-direction: column;
    align-items: flex-start;
  }
  .cart-item-thumb { width: 100%; height: 150px; }
  .cart-item-right { 
    flex-direction: row; 
    align-items: center;
    width: 100%;
    justify-content: space-between;
  }
  .hero-stats { flex-direction: column; gap: 16px; }
  .toast-container { left: 16px; right: 16px; }
  .toast { max-width: 100%; }
  .filter-tabs { justify-content: center; }
  .filter-tab { flex: 1; text-align: center; }
}

/* ═══════════════════════════════════════════
   LOADING STATE
═══════════════════════════════════════════ */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card2) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: skeleton 1.5s infinite;
  border-radius: var(--radius);
}
@keyframes skeleton {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(0,240,255,0.08) 0%, rgba(255,102,0,0.06) 100%);
  border: 1px solid var(--border-h);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(4px);
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  border: 1px solid rgba(0,240,255,0.1);
  border-radius: 50%;
}
.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40px; left: -40px;
  width: 150px; height: 150px;
  border: 1px solid rgba(255,102,0,0.1);
  border-radius: 50%;
}
.cta-banner h2 { 
  font-family: var(--font-head); 
  font-size: clamp(1.2rem, 2.5vw, 1.8rem); 
  margin-bottom: 12px; 
}
.cta-banner p { 
  color: var(--text-muted); 
  margin-bottom: 28px; 
  font-size: clamp(0.9rem, 1.5vw, 0.95rem); 
}
.cta-banner .cta-btns { 
  display: flex; 
  justify-content: center; 
  gap: 14px; 
  flex-wrap: wrap; 
}
/* ═══════════════════════════════════════════
   SCROLL REVEAL ANIMATIONS
═══════════════════════════════════════════ */
.reveal-card {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal-card.revealed {
  opacity: 1;
  transform: translateY(0);
}
/* Disable reveal on reduced motion */
@media (prefers-reduced-motion: reduce) {
  .reveal-card { opacity: 1; transform: none; transition: none; }
}

/* ═══════════════════════════════════════════
   PROCESS STEPS
═══════════════════════════════════════════ */
.process-grid {
  display: flex;
  align-items: center;
  gap: 0;
}
.process-step {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  position: relative;
  transition: all 0.3s ease;
}
.process-step:hover {
  border-color: var(--border-h);
  transform: translateY(-6px);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.12);
}
.process-num {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 900;
  color: rgba(0, 240, 255, 0.08);
  line-height: 1;
  margin-bottom: -8px;
  letter-spacing: -0.04em;
}
.process-icon-wrap {
  font-size: 2.8rem;
  margin-bottom: 16px;
  display: block;
  filter: drop-shadow(0 0 12px rgba(0,240,255,0.3));
  transition: transform 0.3s ease, filter 0.3s ease;
}
.process-step:hover .process-icon-wrap {
  transform: scale(1.15) translateY(-4px);
  filter: drop-shadow(0 0 20px rgba(0,240,255,0.5));
}
.process-title {
  font-family: var(--font-head);
  font-size: clamp(0.85rem, 1.5vw, 0.95rem);
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}
.process-desc {
  font-size: clamp(0.78rem, 1.2vw, 0.85rem);
  color: var(--text-muted);
  line-height: 1.65;
}
.process-connector {
  flex-shrink: 0;
  width: 80px;
  height: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
}
.process-connector-line {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  opacity: 0.4;
  position: relative;
}
.process-connector-line::after {
  content: '→';
  position: absolute;
  right: -10px;
  top: -10px;
  color: var(--orange);
  font-size: 1rem;
  opacity: 0.6;
}
@media (max-width: 768px) {
  .process-grid { flex-direction: column; gap: 8px; }
  .process-connector { width: 2px; height: 40px; transform: none; }
  .process-connector-line { width: 2px; height: 100%; background: linear-gradient(180deg, var(--cyan), var(--orange)); }
  .process-connector-line::after { content: '↓'; right: -8px; top: auto; bottom: -12px; }
}
@media (max-width: 480px) {
  .process-step { padding: 24px 20px; }
}

/* ═══════════════════════════════════════════
   MATERIALS GRID
═══════════════════════════════════════════ */
.materials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 900px) { .materials-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .materials-grid { grid-template-columns: 1fr; } }

.material-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.material-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--m-color, var(--cyan));
  opacity: 0.6;
  transition: opacity 0.3s ease;
}
.material-card:hover {
  border-color: var(--m-color, var(--border-h));
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.material-card:hover::before { opacity: 1; }
.material-name {
  font-family: var(--font-head);
  font-size: clamp(1.2rem, 2vw, 1.4rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.material-bar {
  width: 100%;
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  margin-bottom: 12px;
  overflow: hidden;
}
.material-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 1s ease;
  opacity: 0.7;
}
.material-desc {
  font-size: clamp(0.75rem, 1.2vw, 0.82rem);
  color: var(--text-muted);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════
   HERO BADGE SCAN EFFECT
═══════════════════════════════════════════ */
.hero-badge {
  position: relative;
  overflow: hidden;
}
.hero-badge::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  animation: badgeScan 3s ease-in-out infinite 1s;
}
@keyframes badgeScan {
  0% { left: -100%; }
  60%, 100% { left: 150%; }
}

/* ═══════════════════════════════════════════
   MOBILE HERO PARTICLES — performance
═══════════════════════════════════════════ */
@media (max-width: 768px) {
  .particle {
    will-change: transform;
    animation-duration: 15s; /* faster on mobile */
  }
  /* Reduce particle count visibility on very small screens */
  .particle:nth-child(n+7) { display: none; }
}

/* ═══════════════════════════════════════════
   HERO TITLE GLOW PULSE
═══════════════════════════════════════════ */
.hero-title span {
  color: var(--cyan);
  text-shadow: 0 0 30px rgba(0,240,255,0.3);
  animation: titleGlow 4s ease-in-out infinite 1s;
}
@keyframes titleGlow {
  0%, 100% { text-shadow: 0 0 20px rgba(0,240,255,0.2); }
  50% { text-shadow: 0 0 40px rgba(0,240,255,0.5), 0 0 80px rgba(0,240,255,0.2); }
}

/* ═══════════════════════════════════════════
   FONT OVERRIDES — Orbitron for tech accents
═══════════════════════════════════════════ */
.footer-logo { font-family: var(--font-tech) !important; }
.hero-stat-num { font-family: var(--font-tech); }
.product-price { font-family: var(--font-tech); }
.cart-item-price { font-family: var(--font-tech); }
.process-num { font-family: var(--font-tech); }
.material-name { font-family: var(--font-tech); }

/* Section titles use Russo One — bolder, punchier */
.section-title {
  font-family: var(--font-head);
  letter-spacing: 0.01em;
}
.hero-title {
  font-family: var(--font-head);
  letter-spacing: -0.01em;
}

/* ═══════════════════════════════════════════
   FOOTER SOCIAL PILLS
═══════════════════════════════════════════ */
.social-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 13px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.82rem;
  transition: all 0.2s ease;
}
.social-pill:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

/* Footer links hover fix */
.footer-links-list a:hover {
  color: var(--cyan) !important;
  transform: translateX(4px);
}


/* ═══════════════════════════════════════════
   ORDER FORM — 3 шляхи
═══════════════════════════════════════════ */

/* Селектор шляху */
.order-path-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.order-path-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 12px;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.order-path-btn:hover {
  border-color: var(--border-h);
  background: var(--bg-card2);
}
.order-path-btn.active {
  border-color: var(--cyan);
  background: var(--cyan-glow);
}
.order-path-btn .path-icon { font-size: 1.8rem; }
.order-path-btn .path-label {
  font-weight: 600;
  font-size: clamp(.75rem, 1.4vw, .88rem);
  color: var(--text);
}
.order-path-btn.active .path-label { color: var(--cyan); }
.order-path-btn .path-desc {
  font-size: clamp(.65rem, 1.1vw, .72rem);
  color: var(--text-muted);
}

/* Розширені параметри */
.advanced-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px 0;
  user-select: none;
  transition: color 0.2s;
}
.advanced-toggle:hover { color: var(--cyan); }

/* Фото-сітка */
.photo-upload-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.photo-upload-slot {
  width: 90px;
  height: 90px;
  border-radius: var(--radius);
  border: 2px dashed var(--border-h);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  position: relative;
  transition: var(--transition);
  overflow: hidden;
}
.add-photo-slot {
  cursor: pointer;
  background: var(--bg-card2);
}
.add-photo-slot:hover {
  border-color: var(--cyan);
  background: var(--cyan-glow);
}
.photo-thumb {
  border-style: solid;
  border-color: rgba(0,255,136,.35);
  background: rgba(0,255,136,.06);
  padding: 6px;
}
.photo-thumb-name {
  font-size: .6rem;
  color: var(--success);
  word-break: break-all;
  text-align: center;
  max-height: 60px;
  overflow: hidden;
}
.photo-remove-btn {
  position: absolute;
  top: 3px; right: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--error);
  color: #fff;
  font-size: .65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  line-height: 1;
}

@media (max-width: 480px) {
  .order-path-selector { grid-template-columns: 1fr; gap: 8px; }
  .order-path-btn { flex-direction: row; text-align: left; padding: 14px 16px; }
  .order-path-btn .path-icon { font-size: 1.4rem; }
  .order-path-btn .path-desc { display: none; }
}

/* ─── Size inputs row ─────────────────────────────────── */
.size-inputs-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}
.size-input-wrap {
  flex: 1;
  min-width: 0;
  position: relative;
}
.size-input-wrap .form-control {
  padding-right: 36px;
  text-align: center;
}
.size-label {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: .68rem;
  color: var(--text-dim);
  pointer-events: none;
  white-space: nowrap;
}
.size-sep {
  font-size: 1.2rem;
  color: var(--text-dim);
  flex-shrink: 0;
  line-height: 1;
}