/* ============================================
   SILICON ZEN - Home Office Ergonomics Design System
   ============================================ */

:root {
  /* Color Palette - Silicon Zen */
  --color-platinum: #EBEFF2;
  --color-cyber-blue: #00D1FF;
  --color-graphite: #7C7C7C;
  --color-neural-black: #101112;
  --color-white: #FFFFFF;
  --color-shadow-light: rgba(16, 17, 18, 0.05);
  --color-shadow-medium: rgba(16, 17, 18, 0.1);
  --color-shadow-dark: rgba(16, 17, 18, 0.2);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Space Grotesk', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Shadows - Neumorphic */
  --shadow-soft: 8px 8px 16px var(--color-shadow-light), -8px -8px 16px var(--color-white);
  --shadow-pressed: inset 4px 4px 8px var(--color-shadow-light), inset -4px -4px 8px var(--color-white);
  --shadow-elevated: 12px 12px 24px var(--color-shadow-medium), -12px -12px 24px var(--color-white);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Layout */
  --max-width: 1280px;
  --header-height: 80px;
}

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

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

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

body {
  font-family: var(--font-primary);
  color: var(--color-neural-black);
  background-color: var(--color-platinum);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(1.5rem, 4vw, 3rem);
}

h2 {
  font-size: clamp(1.3rem, 3vw, 2rem);
}

h3 {
  font-size: clamp(1rem, 2vw, 1.3rem);
}

p {
  margin-bottom: var(--space-md);
}

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

.site-header {
  position: relative;
  width: 100%;
  padding: var(--space-lg) var(--space-md);
  background: var(--color-platinum);
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: nowrap;
}

.brand-text {
  font-family: var(--font-secondary);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 600;
  color: var(--color-neural-black);
}

.main-navigation {
  display: flex;
  gap: 15px;
  align-items: center;
  flex-wrap: wrap;
}

.nav-link {
  font-size: 0.9375rem;
  color: var(--color-graphite);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
}

.nav-link:hover {
  color: var(--color-neural-black);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.burger-toggle {
  display: flex;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: space-around;
  z-index: 10001;
  padding: var(--space-xs);
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-base);
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.burger-toggle:hover {
  box-shadow: var(--shadow-elevated);
}

.burger-line {
  width: 100%;
  height: 2px;
  background: var(--color-neural-black);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.burger-toggle.active .burger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.burger-toggle.active .burger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--color-white);
  box-shadow: 0 4px 20px var(--color-shadow-medium);
  padding: var(--space-3xl) var(--space-xl);
  z-index: 10000;
  transform: translateX(-100%);
  opacity: 0;
  transition: all var(--transition-base);
  overflow-y: auto;
}

.mobile-menu.active {
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-nav-link {
  font-size: 1.125rem;
  color: var(--color-neural-black);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.mobile-nav-link:hover {
  background: var(--color-platinum);
  padding-left: var(--space-lg);
}

@media (max-width: 1023px) {
  .main-navigation {
    display: none;
  }
  
  .mobile-menu {
    display: block;
  }
}

@media (min-width: 1024px) {
  .burger-toggle {
    display: none;
  }
}

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

.hero-banner {
  width: 100vw;
  position: relative;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-platinum) 0%, var(--color-white) 100%);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(235, 239, 242, 0.75);
  z-index: 1;
}

.hero-banner-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0.4;
}

.hero-content {
  max-width: var(--max-width);
  width: 100%;
  padding: var(--space-3xl) var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  z-index: 2;
}

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

.hero-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.hero-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-neural-black);
  line-height: 1.1;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-graphite);
  line-height: 1.7;
}

.hero-text {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* ============================================
   BUTTONS - NEUMORPHIC
   ============================================ */

.btn-primary {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background: var(--color-white);
  color: var(--color-neural-black);
  border-radius: var(--radius-lg);
  font-weight: 500;
  font-size: 1rem;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-base);
  text-align: center;
  margin-top: 10px;
}

.btn-primary:hover {
  box-shadow: var(--shadow-pressed);
  transform: translateY(2px);
}

.btn-primary:active {
  box-shadow: var(--shadow-pressed);
}

.btn-secondary {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background: transparent;
  color: var(--color-cyber-blue);
  border: 2px solid var(--color-cyber-blue);
  border-radius: var(--radius-lg);
  font-weight: 500;
  font-size: 1rem;
  transition: all var(--transition-base);
}

.btn-secondary:hover {
  background: var(--color-cyber-blue);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(0, 209, 255, 0.3);
}

/* ============================================
   SECTIONS
   ============================================ */

.content-section {
  padding: var(--space-3xl) var(--space-md);
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.content-section > * {
  text-align: left;
}

.content-section .section-title {
  text-align: center;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
  color: var(--color-neural-black);
}

.section-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.content-card {
  background: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-base);
}

.content-card:hover {
  box-shadow: var(--shadow-elevated);
  transform: translateY(-4px);
}

.card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  color: var(--color-neural-black);
}

.card-text {
  color: var(--color-graphite);
  line-height: 1.7;
}

/* ============================================
   WORK MODE VIEWER (360°)
   ============================================ */

.mode-viewer {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-elevated);
  margin: var(--space-3xl) auto;
  max-width: 900px;
}

.mode-controls {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.mode-btn {
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-platinum);
  color: var(--color-neural-black);
  border-radius: var(--radius-md);
  font-weight: 500;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-base);
}

.mode-btn.active {
  background: var(--color-cyber-blue);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(0, 209, 255, 0.4);
}

.mode-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated);
}

.mode-display {
  min-height: 400px;
  background: linear-gradient(135deg, var(--color-platinum) 0%, var(--color-white) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-slow);
}

.mode-display.focus-mode {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  box-shadow: 0 0 40px rgba(0, 209, 255, 0.2);
}

.mode-display.creative-mode {
  background: linear-gradient(135deg, #ff6b6b 0%, #ffa500 100%);
  box-shadow: 0 0 40px rgba(255, 107, 107, 0.3);
}

.mode-display.meeting-mode {
  background: linear-gradient(135deg, var(--color-platinum) 0%, var(--color-white) 100%);
  box-shadow: 0 0 40px rgba(255, 255, 255, 0.5);
}

.mode-visual {
  text-align: center;
  color: var(--color-neural-black);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 600;
}

.mode-display.focus-mode .mode-visual {
  color: var(--color-cyber-blue);
}

.mode-display.creative-mode .mode-visual {
  color: var(--color-white);
}

/* ============================================
   FORMS
   ============================================ */

.form-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-elevated);
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 500;
  color: var(--color-neural-black);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--color-platinum);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  background: var(--color-platinum);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-cyber-blue);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(0, 209, 255, 0.1);
}

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

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

.checkbox-input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
}

.checkbox-label {
  font-size: 0.9375rem;
  color: var(--color-graphite);
  line-height: 1.5;
}

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

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-base);
}

.product-card:hover {
  box-shadow: var(--shadow-elevated);
  transform: translateY(-6px);
}

.product-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.product-info {
  padding: var(--space-xl);
}

.product-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  color: var(--color-neural-black);
}

.product-description {
  color: var(--color-graphite);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.product-price {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-cyber-blue);
}

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

.site-footer {
  background: var(--color-neural-black);
  color: var(--color-platinum);
  padding: var(--space-2xl) var(--space-md);
  margin-top: var(--space-3xl);
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
}

.footer-section h3 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  font-size: 1.125rem;
}

.footer-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-link {
  color: var(--color-graphite);
  transition: color var(--transition-base);
}

.footer-link:hover {
  color: var(--color-cyber-blue);
}

.footer-info {
  color: var(--color-graphite);
  font-size: 0.875rem;
  line-height: 1.7;
}

.footer-bottom {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-graphite);
  font-size: 0.875rem;
}

/* ============================================
   MAPS
   ============================================ */

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  margin: var(--space-xl) 0;
}

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

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

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

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

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

.date {
  color: var(--color-graphite);
  font-size: 0.875rem;
}

/* ============================================
   PRIVACY POPUP
   ============================================ */

.privacy-popup {
  display: none;
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  max-width: 400px;
  background: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-elevated);
  z-index: 10000;
  animation: slideUp 0.5s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(100px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.privacy-popup.active {
  display: block;
}

.privacy-popup-content {
  margin-bottom: var(--space-md);
}

.privacy-popup-title {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
  color: var(--color-neural-black);
}

.privacy-popup-text {
  font-size: 0.875rem;
  color: var(--color-graphite);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.privacy-popup-actions {
  display: flex;
  gap: var(--space-sm);
}

/* ============================================
   ERGONOMIC ASSESSMENT
   ============================================ */

.assessment-form {
  background: var(--color-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-elevated);
  max-width: 700px;
  margin: 0 auto;
}

.geometry-diagram {
  margin-top: var(--space-xl);
  padding: var(--space-xl);
  background: var(--color-platinum);
  border-radius: var(--radius-lg);
  text-align: center;
}

.diagram-visual {
  width: 100%;
  max-width: 500px;
  height: 400px;
  margin: 0 auto;
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-soft);
}

.diagram-label {
  margin-top: var(--space-md);
  font-weight: 500;
  color: var(--color-neural-black);
}

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

@media (max-width: 768px) {
  :root {
    --space-3xl: 2rem;
    --space-2xl: 1.5rem;
  }
  
  .content-section {
    padding: var(--space-xl) var(--space-md);
  }
  
  .section-content {
    grid-template-columns: 1fr;
  }
  
  .mode-viewer {
    padding: var(--space-lg);
  }
  
  .mode-display {
    min-height: 300px;
  }
  
  .form-container {
    padding: var(--space-lg);
  }
  
  .privacy-popup {
    bottom: var(--space-md);
    right: var(--space-md);
    left: var(--space-md);
    max-width: none;
  }
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr !important;
  }
}

@media (max-width: 480px) {
  .site-header {
    padding: var(--space-md);
  }
  
  .hero-banner {
    min-height: 50vh;
  }
  
  .hero-content {
    padding: var(--space-xl) var(--space-md);
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease;
}

/* Blue Light Filter Effect */
@keyframes warmUp {
  0% {
    filter: brightness(1) hue-rotate(0deg);
  }
  100% {
    filter: brightness(1.1) hue-rotate(10deg);
  }
}

body.warm-mode {
  animation: warmUp 10s ease-in-out;
}