/* ============================================
   BRUTALIST-CYBER DESIGN SYSTEM
   Linocut & Block Printing Website
   ============================================ */

:root {
  /* Color Palette */
  --color-carbon-ink: #080808;
  --color-pulp-white: #FFFFFF;
  --color-electric-graphite: #4A4A4A;
  --color-hazard-yellow: #EAB308;
  
  /* Typography */
  --font-display: 'Playfair Display', serif;
  --font-mono: 'Space Mono', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Layout */
  --container-max: 1400px;
  --section-padding: 4rem 1rem;
  --section-padding-mobile: 3rem 1rem;
  
  /* Effects */
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-press: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-sink: 0 4px 16px rgba(0, 0, 0, 0.6);
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Grid */
  --grid-gap: 2rem;
  --grid-gap-mobile: 1rem;
}

/* ============================================
   RESET & BASE
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
  height: 100%;
}

body {
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-carbon-ink);
  background-color: var(--color-pulp-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

li {
  margin-bottom: var(--space-sm);
  font-size: clamp(0.875rem, 2vw, 1rem);
  line-height: 1.6;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-carbon-ink);
}

h1 {
  font-size: clamp(2.5rem, 8vw, 6rem);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: clamp(2rem, 6vw, 4rem);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: var(--space-md);
}

h4 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
  font-size: clamp(0.875rem, 2vw, 1rem);
}

/* ============================================
   LAYOUT CONTAINERS
   ============================================ */

main {
  flex: 1;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--section-padding);
  position: relative;
}

.section-content {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  padding: var(--space-lg) var(--space-md);
  background-color: var(--color-pulp-white);
  z-index: 1000;
  border-bottom: 2px solid var(--color-carbon-ink);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  position: relative;
}

.brand-text {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 900;
  color: var(--color-carbon-ink);
  flex-shrink: 0;
}

nav {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  gap: 15px;
  list-style: none;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-electric-graphite);
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-carbon-ink);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-carbon-ink);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

/* Burger Menu */
.burger-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 28px;
  height: 28px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 100001;
  position: relative;
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.burger-line {
  width: 100%;
  height: 3px;
  background-color: var(--color-carbon-ink);
  transition: all var(--transition-smooth);
  transform-origin: center;
}

.burger-toggle.active .burger-line:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.burger-toggle.active .burger-line:nth-child(2) {
  opacity: 0;
}

.burger-toggle.active .burger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Navigation Overlay */
.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(8, 8, 8, 0.5);
  z-index: 99999;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.nav-overlay.active {
  display: block;
  opacity: 1;
}

/* Mobile Navigation */
@media (max-width: 1023px) {
  .burger-toggle {
    display: flex;
  }
  
  nav {
    display: none;
  }
  
  .nav-menu {
    position: fixed !important;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background-color: var(--color-pulp-white);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-3xl) var(--space-lg);
    gap: var(--space-lg);
    border-left: 2px solid var(--color-carbon-ink);
    transition: right var(--transition-smooth);
    z-index: 100000;
    overflow-y: auto;
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.2);
    margin: 0;
    display: flex !important;
    list-style: none;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-link {
    font-size: 1.125rem;
    width: 100%;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-electric-graphite);
  }
  
  .nav-link::after {
    display: none;
  }
}

/* Desktop Navigation - красивое расположение ссылок */
@media (min-width: 1024px) {
  .header-container {
    gap: var(--space-lg);
  }
  
  nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
  }
  
  .nav-menu {
    justify-content: flex-end;
  }
}

/* ============================================
   HERO BANNERS
   ============================================ */

.hero-banner {
  width: 100vw;
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
}

.banner-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.3;
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(8, 8, 8, 0.7) 0%,
    rgba(8, 8, 8, 0.5) 50%,
    rgba(8, 8, 8, 0.7) 100%
  );
  z-index: 2;
}

.banner-content {
  position: relative;
  z-index: 3;
  text-align: center;
  color: var(--color-pulp-white);
  padding: var(--space-xl) var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}

.banner-title {
  color: var(--color-pulp-white);
  text-shadow: 4px 4px 0 rgba(0, 0, 0, 0.8);
  margin-bottom: var(--space-md);
}

.banner-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-pulp-white);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  opacity: 0.9;
}

/* ============================================
   GRID LAYOUTS
   ============================================ */

.grid-section {
  display: grid;
  gap: var(--grid-gap);
  margin: var(--space-xl) 0;
  justify-items: center;
}

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

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

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

.grid-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-lg);
  background-color: var(--color-pulp-white);
  border: 2px solid var(--color-carbon-ink);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.grid-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-press);
}

.grid-image {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 4/3;
  object-fit: cover;
  margin: 0 auto var(--space-md);
  border: 1px solid var(--color-electric-graphite);
}

.grid-text {
  flex: 1;
}

@media (max-width: 1023px) {
  .grid-two,
  .grid-three,
  .grid-four {
    grid-template-columns: 1fr;
  }
  
  .grid-gap {
    gap: var(--grid-gap-mobile);
  }
}

@media (min-width: 1024px) and (max-width: 1279px) {
  .grid-three {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-four {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-pulp-white);
  background-color: var(--color-carbon-ink);
  border: 2px solid var(--color-carbon-ink);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  margin: 10px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background-color: var(--color-pulp-white);
  transition: left var(--transition-fast);
  z-index: 0;
}

.btn span {
  position: relative;
  z-index: 1;
}

.btn:hover {
  color: var(--color-carbon-ink);
}

.btn:hover::before {
  left: 0;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-carbon-ink);
}

.btn-secondary::before {
  background-color: var(--color-carbon-ink);
}

.btn-secondary:hover {
  color: var(--color-pulp-white);
}

.btn:active {
  transform: translateY(2px);
  box-shadow: var(--shadow-sink);
}

/* ============================================
   VIRTUAL GOUGE FEATURE
   ============================================ */

.gouge-container {
  width: 100%;
  max-width: 800px;
  margin: var(--space-xl) auto;
  position: relative;
  aspect-ratio: 16/9;
  background-color: var(--color-carbon-ink);
  border: 4px solid var(--color-carbon-ink);
  overflow: hidden;
  cursor: crosshair;
}

.gouge-canvas {
  width: 100%;
  height: 100%;
  position: relative;
}

.gouge-debris {
  position: absolute;
  width: 4px;
  height: 4px;
  background-color: var(--color-pulp-white);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.8;
  animation: fade-debris 3s ease-out forwards;
}

@keyframes fade-debris {
  0% {
    opacity: 0.8;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(0);
  }
}

@keyframes fade-trail {
  0% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.5);
  }
}

.gouge-trail {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--color-pulp-white) 0%, transparent 70%);
  mix-blend-mode: screen;
  pointer-events: none;
}

/* ============================================
   PRODUCTS
   ============================================ */

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin: var(--space-xl) 0;
  justify-items: center;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.product-card {
  background-color: var(--color-pulp-white);
  border: 2px solid var(--color-carbon-ink);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-press);
}

.product-image {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 1;
  object-fit: cover;
  margin: 0 auto var(--space-md);
  border: 1px solid var(--color-electric-graphite);
}

.product-title {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  margin-bottom: var(--space-sm);
}

.product-description {
  font-size: 0.875rem;
  color: var(--color-electric-graphite);
  margin-bottom: var(--space-md);
  flex: 1;
}

.product-price {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-carbon-ink);
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-electric-graphite);
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-section {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-carbon-ink);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-carbon-ink);
  background-color: var(--color-pulp-white);
  border: 2px solid var(--color-carbon-ink);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-hazard-yellow);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin: var(--space-lg) 0;
}

.checkbox-input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-carbon-ink);
}

.checkbox-label {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-electric-graphite);
}

.map-container {
  width: 100%;
  height: 400px;
  margin: var(--space-xl) 0;
  border: 2px solid var(--color-carbon-ink);
  overflow: hidden;
}

.map-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.contact-info {
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background-color: var(--color-pulp-white);
  border: 2px solid var(--color-carbon-ink);
}

.contact-info-item {
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.contact-info-label {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-right: var(--space-sm);
}

/* ============================================
   PARALLAX EFFECTS
   ============================================ */

.parallax-section {
  position: relative;
  overflow: hidden;
}

.parallax-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 120%;
  will-change: transform;
}

.parallax-background {
  z-index: 1;
}

.parallax-content {
  position: relative;
  z-index: 2;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background-color: var(--color-carbon-ink);
  color: var(--color-pulp-white);
  padding: var(--space-xl) var(--space-md);
  margin-top: auto;
  border-top: 4px solid var(--color-hazard-yellow);
  width: 100%;
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-lg);
}

.footer-section {
  display: flex;
  flex-direction: column;
}

.footer-section:last-child {
  grid-column: 1 / -1;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  align-items: center;
}

.footer-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
  color: var(--color-pulp-white);
}

.footer-menu {
  list-style: none;
}

.footer-link {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-pulp-white);
  opacity: 0.8;
  margin-bottom: var(--space-sm);
  transition: opacity var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-link:hover {
  opacity: 1;
  color: var(--color-hazard-yellow);
}

.footer-text {
  font-size: 0.75rem;
  opacity: 0.7;
  margin-top: var(--space-md);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.highlight {
  color: var(--color-hazard-yellow);
}

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

@media (max-width: 767px) {
  :root {
    --section-padding: var(--section-padding-mobile);
    --grid-gap: var(--grid-gap-mobile);
  }
  
  h1 {
    font-size: clamp(2rem, 10vw, 4rem);
  }
  
  h2 {
    font-size: clamp(1.75rem, 8vw, 3rem);
  }
  
  .hero-banner {
    min-height: 50vh;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 479px) {
  .section {
    padding: 2rem 0.75rem;
  }
  
  .banner-content {
    padding: var(--space-lg) var(--space-sm);
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}