/* 
  GlazedWindows Master Stylesheet 
  Pure Vanilla CSS3, Zero Frameworks
*/

:root {
  /* Midnight Charcoal Dark Theme Base */
  --gws-bg-primary: #f8fafc;
  --gws-text-primary: #0f172a;
  --gws-text-secondary: #475569;
  --gws-accent: #121212;
  --gws-accent-light: #333333;
  --gws-border: #e2e8f0;
  
  /* Shared values */
  --gws-glass-bg: rgba(255, 255, 255, 0.8);
  --gws-glass-border: rgba(255, 255, 255, 0.5);
  --gws-radius: 4px;
  --gws-spacing-2-5cm: 95px; /* ~2.5cm at 96 DPI */
}

@media (prefers-color-scheme: dark) {
  :root {
    --gws-bg-primary: #121212; /* Midnight Charcoal */
    --gws-text-primary: #f8fafc;
    --gws-text-secondary: #cbd5e1;
    --gws-accent: #ffffff;
    --gws-accent-light: #e2e8f0;
    --gws-border: #333333;
    
    --gws-glass-bg: rgba(18, 18, 18, 0.75);
    --gws-glass-border: rgba(51, 51, 51, 0.5);
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--gws-bg-primary);
  color: var(--gws-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

/* =========================================
   TYPOGRAPHY & STRUCTURAL MARGINS
   ========================================= */

h1 {
  font-size: clamp(3rem, 5vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-top: var(--gws-spacing-2-5cm);
  margin-bottom: 2rem;
  color: var(--gws-text-primary);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

p {
  color: var(--gws-text-secondary);
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
  max-width: 800px;
}

.GlazedWindows-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.GlazedWindows-section {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

/* =========================================
   NAVIGATION COMPONENT
   ========================================= */

.GlazedWindows-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  background-color: var(--gws-glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gws-glass-border);
}

.GlazedWindows-header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
}

.GlazedWindows-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.GlazedWindows-desktop-nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

@media (min-width: 1280px) {
  .GlazedWindows-desktop-nav {
    display: flex;
  }
  .GlazedWindows-mobile-open-btn {
    display: none;
  }
}

.GlazedWindows-nav-link {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color 0.2s;
}

.GlazedWindows-nav-link:hover {
  color: var(--gws-text-secondary);
}

.GlazedWindows-flex-center {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Dropdown */
.GlazedWindows-dropdown {
  position: relative;
}

.GlazedWindows-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 0.5rem;
  width: 250px;
  background-color: var(--gws-glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--gws-glass-border);
  border-radius: var(--gws-radius);
  padding: 0.5rem 0;
  visibility: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.GlazedWindows-dropdown:hover .GlazedWindows-dropdown-menu {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.GlazedWindows-dropdown-item {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--gws-text-primary);
}

.GlazedWindows-dropdown-item:hover {
  background-color: rgba(125, 125, 125, 0.1);
}

/* Buttons */
.GlazedWindows-btn-quote,
.GlazedWindows-btn-primary,
.GlazedWindows-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  border-radius: var(--gws-radius);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.2s;
}

.GlazedWindows-btn-quote,
.GlazedWindows-btn-primary {
  background-color: var(--gws-accent);
  color: var(--gws-bg-primary);
  border: 1px solid var(--gws-accent);
}

.GlazedWindows-btn-primary:hover,
.GlazedWindows-btn-quote:hover {
  background-color: var(--gws-accent-light);
}

.GlazedWindows-btn-secondary {
  background-color: transparent;
  color: var(--gws-text-primary);
  border: 1px solid var(--gws-border);
}

.GlazedWindows-btn-secondary:hover {
  background-color: rgba(125, 125, 125, 0.05);
}

/* Mobile Menu */
.GlazedWindows-mobile-open-btn,
.GlazedWindows-mobile-close-btn {
  background: none;
  border: none;
  color: var(--gws-text-primary);
  cursor: pointer;
}

.GlazedWindows-mobile-menu {
  position: fixed;
  inset: 0;
  background-color: var(--gws-glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 60;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  visibility: hidden;
  opacity: 0;
  transition: all 0.3s;
}

.GlazedWindows-mobile-menu.GWS-active {
  visibility: visible;
  opacity: 1;
}

.GlazedWindows-mobile-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
}

.GlazedWindows-mobile-menu-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  text-align: center;
  overflow-y: auto;
  max-height: 100vh;
  padding: 4rem 1rem;
}

.GlazedWindows-mobile-link {
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* =========================================
   FLOATING ACTION BAR
   ========================================= */

.GlazedWindows-floating-bar {
  position: fixed;
  right: 20px;
  bottom: 35%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 40;
}

.GlazedWindows-btn-float {
  width: 50px;
  height: 50px;
  background-color: var(--gws-glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--gws-glass-border);
  border-radius: var(--gws-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gws-text-primary);
  font-weight: 800;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  text-transform: uppercase;
  overflow: hidden;
}

.GlazedWindows-btn-float:hover {
  width: 140px;
  background-color: var(--gws-text-primary);
  color: var(--gws-bg-primary);
}

.GlazedWindows-btn-float span:first-child {
  position: absolute;
  left: 14px;
}

.GlazedWindows-hover-text {
  position: absolute;
  left: 45px;
  opacity: 0;
  white-space: nowrap;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  transition: opacity 0.3s;
}

.GlazedWindows-btn-float:hover .GlazedWindows-hover-text {
  opacity: 1;
}

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

.GlazedWindows-footer {
  margin-top: var(--gws-spacing-2-5cm);
  background-color: var(--gws-glass-bg);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--gws-glass-border);
  padding: 4rem 1.5rem 2rem;
}

.GlazedWindows-footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .GlazedWindows-footer-inner {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.GlazedWindows-footer-desc {
  margin-top: 1rem;
  font-size: 0.875rem;
  max-width: 300px;
}

.GlazedWindows-footer-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.GlazedWindows-footer-links a {
  display: block;
  color: var(--gws-text-secondary);
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.GlazedWindows-footer-links a:hover {
  color: var(--gws-text-primary);
}

.GlazedWindows-footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  border-top: 1px solid var(--gws-border);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--gws-text-secondary);
}

/* =========================================
   GRID & LAYOUT UTILS
   ========================================= */

.GlazedWindows-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .GlazedWindows-grid-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .GlazedWindows-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .GlazedWindows-grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.GlazedWindows-image-feature {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--gws-radius);
  border: 1px solid var(--gws-border);
}

.GlazedWindows-flex-gap {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.GlazedWindows-mt-large {
  margin-top: 3rem;
}

/* =========================================
   ANIMATIONS & EFFECTS
   ========================================= */

.GlazedWindows-animate {
  opacity: 0;
  transform: translateY(20px);
  animation: sheerlineFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes sheerlineFadeUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}