/*
Theme Name: ArchX - Construction Marketplace
Theme URI: https://archx.store
Author: ArchX Team
Author URI: https://archx.store
Description: Premium B2B Construction Materials Marketplace Theme with Framer Motion animations
Version: 1.0.0
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: archx
Tags: construction, marketplace, b2b, e-commerce, responsive, animation
*/

/* ========================================
   ARCHX WORDPRESS THEME
   Premium B2B Construction Marketplace
   ======================================== */

:root {
  /* Primary Colors */
  --archx-primary: #FF6B00;
  --archx-primary-dark: #E55A00;
  --archx-primary-light: #FF8533;
  
  /* Secondary Colors */
  --archx-secondary: #1A1A2E;
  --archx-secondary-light: #16213E;
  
  /* Accent Colors */
  --archx-accent: #00D4AA;
  --archx-accent-dark: #00B894;
  
  /* Neutral Colors */
  --archx-white: #FFFFFF;
  --archx-gray-100: #F8F9FA;
  --archx-gray-200: #E9ECEF;
  --archx-gray-300: #DEE2E6;
  --archx-gray-400: #CED4DA;
  --archx-gray-500: #ADB5BD;
  --archx-gray-600: #6C757D;
  --archx-gray-700: #495057;
  --archx-gray-800: #343A40;
  --archx-gray-900: #212529;
  
  /* Gradients */
  --archx-gradient-primary: linear-gradient(135deg, #FF6B00 0%, #FF8533 100%);
  --archx-gradient-dark: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%);
  --archx-gradient-hero: linear-gradient(135deg, #1A1A2E 0%, #0F0F23 50%, #1A1A2E 100%);
  
  /* Shadows */
  --archx-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --archx-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --archx-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --archx-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --archx-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --archx-shadow-glow: 0 0 40px rgba(255, 107, 0, 0.3);
  
  /* Typography */
  --archx-font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --archx-font-display: 'Space Grotesk', 'Inter', sans-serif;
  
  /* Spacing */
  --archx-spacing-xs: 0.25rem;
  --archx-spacing-sm: 0.5rem;
  --archx-spacing-md: 1rem;
  --archx-spacing-lg: 1.5rem;
  --archx-spacing-xl: 2rem;
  --archx-spacing-2xl: 3rem;
  --archx-spacing-3xl: 4rem;
  
  /* Border Radius */
  --archx-radius-sm: 0.375rem;
  --archx-radius-md: 0.5rem;
  --archx-radius-lg: 0.75rem;
  --archx-radius-xl: 1rem;
  --archx-radius-2xl: 1.5rem;
  --archx-radius-full: 9999px;
  
  /* Transitions */
  --archx-transition-fast: 150ms ease-in-out;
  --archx-transition-base: 300ms ease-in-out;
  --archx-transition-slow: 500ms ease-in-out;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--archx-font-primary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--archx-gray-800);
  background-color: var(--archx-white);
  overflow-x: hidden;
}

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

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--archx-font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--archx-secondary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

/* ========================================
   ANIMATION KEYFRAMES (Framer Motion Style)
   ======================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(255, 107, 0, 0.4); }
  50% { box-shadow: 0 0 40px rgba(255, 107, 0, 0.6); }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Animation Classes */
.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fade-in-down {
  animation: fadeInDown 0.6s ease-out forwards;
}

.animate-fade-in-left {
  animation: fadeInLeft 0.6s ease-out forwards;
}

.animate-fade-in-right {
  animation: fadeInRight 0.6s ease-out forwards;
}

.animate-scale-in {
  animation: scaleIn 0.5s ease-out forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

.animate-pulse-glow {
  animation: pulse-glow 2s ease-in-out infinite;
}

.animate-rotate {
  animation: rotate 20s linear infinite;
}

/* Stagger Animation Delays */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   COMPONENTS (21st.dev Style)
   ======================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--archx-radius-lg);
  transition: all var(--archx-transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--archx-gradient-primary);
  color: var(--archx-white);
  box-shadow: var(--archx-shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--archx-shadow-lg), var(--archx-shadow-glow);
}

.btn-secondary {
  background: var(--archx-white);
  color: var(--archx-secondary);
  border: 2px solid var(--archx-gray-200);
}

.btn-secondary:hover {
  border-color: var(--archx-primary);
  color: var(--archx-primary);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--archx-white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--archx-white);
}

/* Cards (21st.dev Glassmorphism) */
.card {
  background: var(--archx-white);
  border-radius: var(--archx-radius-xl);
  overflow: hidden;
  box-shadow: var(--archx-shadow-md);
  transition: all var(--archx-transition-base);
}

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

.card-glass {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.card-dark {
  background: var(--archx-secondary);
  color: var(--archx-white);
}

.card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-content {
  padding: 1.5rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--archx-secondary);
}

.card-text {
  color: var(--archx-gray-600);
  line-height: 1.6;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--archx-radius-full);
}

.badge-primary {
  background: var(--archx-primary);
  color: var(--archx-white);
}

.badge-accent {
  background: var(--archx-accent);
  color: var(--archx-white);
}

.badge-outline {
  background: transparent;
  border: 1px solid currentColor;
}

/* Input Fields */
.input {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  border: 2px solid var(--archx-gray-200);
  border-radius: var(--archx-radius-lg);
  background: var(--archx-white);
  transition: all var(--archx-transition-base);
}

.input:focus {
  outline: none;
  border-color: var(--archx-primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.1);
}

.input-group {
  display: flex;
  gap: 0.5rem;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: all var(--archx-transition-base);
}

.nav-scrolled {
  box-shadow: var(--archx-shadow-md);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--archx-font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--archx-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo span {
  color: var(--archx-primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-weight: 500;
  color: var(--archx-gray-700);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--archx-primary);
  transition: width var(--archx-transition-base);
}

.nav-link:hover {
  color: var(--archx-primary);
}

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

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 5px;
}

.mobile-menu-btn span {
  width: 25px;
  height: 2px;
  background: var(--archx-secondary);
  transition: all var(--archx-transition-base);
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-narrow {
  max-width: 1000px;
}

/* Grid System */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

@media (max-width: 1024px) {
  .grid-4, .grid-5 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
  .nav-menu { display: none; }
  .mobile-menu-btn { display: flex; }
}

/* Section Styles */
.section {
  padding: 6rem 0;
  position: relative;
}

.section-dark {
  background: var(--archx-secondary);
  color: var(--archx-white);
}

.section-gradient {
  background: var(--archx-gradient-hero);
  color: var(--archx-white);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--archx-primary);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
  color: var(--archx-secondary);
}

.section-dark .section-title,
.section-gradient .section-title {
  color: var(--archx-white);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--archx-gray-600);
  line-height: 1.7;
}

.section-dark .section-subtitle,
.section-gradient .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

/* Product Cards Specific */
.product-card {
  background: var(--archx-white);
  border-radius: var(--archx-radius-xl);
  overflow: hidden;
  box-shadow: var(--archx-shadow-md);
  transition: all var(--archx-transition-base);
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--archx-shadow-xl);
}

.product-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 10;
}

.product-image {
  position: relative;
  aspect-ratio: 1;
  background: var(--archx-gray-100);
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 1rem;
  transition: transform 0.6s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.08);
}

.product-actions {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--archx-transition-base);
}

.product-card:hover .product-actions {
  opacity: 1;
  transform: translateY(0);
}

.product-action-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--archx-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--archx-shadow-md);
  transition: all var(--archx-transition-fast);
}

.product-action-btn:hover {
  background: var(--archx-primary);
  color: var(--archx-white);
}

.product-content {
  padding: 1.5rem;
}

.product-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--archx-gray-500);
  margin-bottom: 0.5rem;
}

.product-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--archx-secondary);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.product-spec {
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  background: var(--archx-gray-100);
  border-radius: var(--archx-radius-sm);
  color: var(--archx-gray-600);
}

.product-price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--archx-gray-200);
}

.product-price {
  display: flex;
  flex-direction: column;
}

.product-price-current {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--archx-primary);
}

.product-price-original {
  font-size: 0.875rem;
  color: var(--archx-gray-400);
  text-decoration: line-through;
}

.product-discount {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--archx-accent);
}

/* Category Cards */
.category-card {
  position: relative;
  border-radius: var(--archx-radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.category-card:hover img {
  transform: scale(1.1);
}

.category-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 26, 46, 0.9) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: all var(--archx-transition-base);
}

.category-card:hover .category-overlay {
  background: linear-gradient(to top, rgba(255, 107, 0, 0.9) 0%, transparent 80%);
}

.category-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--archx-white);
  margin-bottom: 0.25rem;
}

.category-count {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
}

/* Stats Counter */
.stat-card {
  text-align: center;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--archx-radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--archx-primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Feature Cards */
.feature-card {
  padding: 2rem;
  background: var(--archx-white);
  border-radius: var(--archx-radius-xl);
  box-shadow: var(--archx-shadow-md);
  transition: all var(--archx-transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--archx-shadow-xl);
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--archx-radius-lg);
  background: var(--archx-gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--archx-white);
  margin-bottom: 1.5rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--archx-secondary);
  margin-bottom: 0.75rem;
}

.feature-text {
  color: var(--archx-gray-600);
  line-height: 1.7;
}

/* Testimonial Cards */
.testimonial-card {
  padding: 2rem;
  background: var(--archx-white);
  border-radius: var(--archx-radius-xl);
  box-shadow: var(--archx-shadow-md);
}

.testimonial-text {
  font-size: 1.125rem;
  color: var(--archx-gray-700);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-info h4 {
  font-size: 1rem;
  color: var(--archx-secondary);
  margin-bottom: 0.25rem;
}

.testimonial-info p {
  font-size: 0.875rem;
  color: var(--archx-gray-500);
}

/* CTA Section */
.cta-box {
  background: var(--archx-gradient-primary);
  border-radius: var(--archx-radius-2xl);
  padding: 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--archx-white);
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.cta-text {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

/* Footer */
.footer {
  background: var(--archx-secondary);
  color: var(--archx-white);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.footer-brand {
  font-family: var(--archx-font-display);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.footer-brand span {
  color: var(--archx-primary);
}

.footer-text {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--archx-transition-base);
}

.footer-social a:hover {
  background: var(--archx-primary);
  transform: translateY(-3px);
}

.footer-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--archx-white);
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--archx-transition-base);
}

.footer-links a:hover {
  color: var(--archx-primary);
  padding-left: 5px;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copyright {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

/* Floating Action Button */
.fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--archx-gradient-primary);
  color: var(--archx-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--archx-shadow-xl);
  z-index: 999;
  transition: all var(--archx-transition-base);
}

.fab:hover {
  transform: scale(1.1) rotate(90deg);
  box-shadow: var(--archx-shadow-glow);
}

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--archx-gray-200) 25%, var(--archx-gray-100) 50%, var(--archx-gray-200) 75%);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite linear;
  border-radius: var(--archx-radius-md);
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  background: var(--archx-white);
  border-radius: var(--archx-radius-lg);
  box-shadow: var(--archx-shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 1001;
  transform: translateX(150%);
  transition: transform var(--archx-transition-base);
}

.toast.show {
  transform: translateX(0);
}

.toast-success {
  border-left: 4px solid var(--archx-accent);
}

.toast-error {
  border-left: 4px solid #ef4444;
}

/* Responsive Typography */
@media (max-width: 640px) {
  html {
    font-size: 14px;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .container {
    padding: 0 1rem;
  }
}

/* Print Styles */
@media print {
  .nav, .fab, .footer {
    display: none;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
  }
}