/**
 * Dynamic Footer System - Optimized
 * 
 * OPTIMIZATIONS v5.0:
 * - Consolidated responsive values with CSS variables
 * - Removed duplicate selectors and properties
 * - Improved animation performance
 * - Better state management
 * - Streamlined media queries
 * - Enhanced accessibility
 * 
 * @version 5.0.0
 * @last-modified 2025-10-29
 */

/* ===== Footer CSS Variables ===== */
:root {
  /* Spacing System */
  --footer-spacing-xs: clamp(6px, 1vw, 12px);
  --footer-spacing-sm: clamp(8px, 1.5vw, 16px);
  --footer-spacing-md: clamp(12px, 2vw, 24px);
  --footer-spacing-lg: clamp(20px, 3vw, 40px);
  
  /* Typography */
  --footer-text-xs: clamp(10px, 1.5vw, 11px);
  --footer-text-sm: clamp(11px, 1.8vw, 13px);
  
  /* Layout */
  --footer-horizontal-margin: clamp(6px, 1.5vw + 3px, 32px);
  --footer-card-min-width: min(100%, 260px);
  --footer-max-height: clamp(40vh, 25vh + 25vw, 60vh);
  
  /* Transitions */
  --footer-transition-quick: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --footer-transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===== Base Footer Container ===== */
.site-footer-fixed {
  position: fixed;
  bottom: 12px;
  left: 50%;
  width: calc(100% - var(--footer-horizontal-margin) * 2);
  max-width: 1400px;
  min-width: 320px;
  padding-bottom: max(env(safe-area-inset-bottom, 0px), 12px);
  
  /* Glassmorphism */
  background: var(--dynamic-footer-header-bg);
  backdrop-filter: blur(var(--dynamic-footer-blur-radius));
  -webkit-backdrop-filter: blur(var(--dynamic-footer-blur-radius));
  
  /* Shape & Shadow */
  border-radius: var(--dynamic-footer-pill-radius);
  border: 1px solid var(--dynamic-footer-separator);
  box-shadow: var(--dynamic-footer-shadow-depth-2);
  
  /* Typography */
  font-family: var(--dynamic-footer-font-family);
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  
  /* Positioning & Interaction */
  transform: translateX(-50%);
  z-index: 1000;
  touch-action: pan-y;
  
  /* Entrance Animation */
  animation: footerEntrance 0.8s var(--dynamic-footer-spring-bounce) forwards;
  opacity: 0;
  transition: all var(--footer-transition-smooth);
}

@keyframes footerEntrance {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(20px) scale(0.95);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
}

/* ===== Body Padding ===== */
body {
  padding-bottom: 60px;
  transition: padding-bottom var(--transition-base);
}

body.footer-expanded {
  padding-bottom: var(--footer-actual-height, var(--footer-max-height));
}

/* ===== Minimized Footer ===== */
.footer-minimized {
  padding: 6px var(--footer-spacing-sm);
  max-width: 1200px;
  margin: 0 auto;
  min-height: 40px;
  display: flex;
  align-items: center;
  opacity: 1;
  transform: translateY(0);
  transition: all 0.25s var(--dynamic-footer-spring-quick);
}

.footer-minimal-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--footer-spacing-xs);
  flex-wrap: nowrap;
  width: 100%;
  min-height: 24px;
}

.footer-copyright-text {
  color: var(--dynamic-footer-label-secondary);
  font-size: var(--footer-text-xs);
  font-weight: var(--dynamic-footer-font-weight-regular);
  margin: 0;
  line-height: 1.3;
  letter-spacing: -0.005em;
  white-space: nowrap;
  flex-shrink: 1;
  display: flex;
  align-items: center;
}

.footer-brand-link {
  color: var(--dynamic-footer-label-primary);
  text-decoration: none;
  font-weight: var(--dynamic-footer-font-weight-medium);
  margin-left: 4px;
  padding: 2px 4px;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  transition: all var(--footer-transition-quick);
}

.footer-brand-link:hover,
.footer-brand-link:focus {
  color: var(--dynamic-footer-accent-blue);
  background: var(--dynamic-footer-fill-secondary);
  transform: translateY(-1px);
  text-decoration: none;
}

.footer-minimal-nav {
  display: flex;
  gap: var(--footer-spacing-xs);
  align-items: center;
  flex-shrink: 0;
  white-space: nowrap;
}

.footer-nav-link {
  color: var(--dynamic-footer-label-secondary);
  text-decoration: none;
  font-size: var(--footer-text-xs);
  font-weight: var(--dynamic-footer-font-weight-regular);
  padding: 2px clamp(3px, 0.8vw, 6px);
  border-radius: var(--dynamic-footer-micro-radius);
  display: inline-flex;
  align-items: center;
  gap: clamp(2px, 0.5vw, 4px);
  white-space: nowrap;
  position: relative;
  transition: all var(--footer-transition-quick);
}

.footer-nav-link svg {
  flex-shrink: 0;
  opacity: 0.8;
  transition: opacity var(--footer-transition-quick);
}

.footer-nav-link:hover,
.footer-nav-link:focus {
  color: var(--dynamic-footer-label-primary);
  background: var(--dynamic-footer-fill-primary);
  transform: translateY(-1px);
  text-decoration: none;
}

.footer-nav-link:hover svg,
.footer-nav-link:focus svg {
  opacity: 1;
}

.footer-nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1px;
  background: var(--dynamic-footer-accent-blue);
  transform: translateX(-50%);
  transition: width var(--footer-transition-quick);
}

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

/* ===== Maximized Footer ===== */
.footer-maximized {
  opacity: 0;
  transform: translateY(20px);
  max-height: 0;
  overflow: hidden;
  padding-bottom: 0;
  pointer-events: none;
  transition: all 0.35s var(--dynamic-footer-spring-smooth);
}

.footer-maximized-viewport {
  height: var(--footer-actual-height, auto);
  max-height: var(--footer-max-height);
  overflow: clip;
  width: 100%;
}

.footer-enhanced-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--footer-spacing-lg) var(--footer-spacing-md) 16px;
  box-sizing: border-box;
  transform-origin: top center;
  transform: scale(var(--footer-scale, 1));
}

/* ===== Card System ===== */
.footer-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(var(--footer-card-min-width), 1fr));
  gap: var(--footer-spacing-md);
  margin-bottom: clamp(16px, 2.5vw + 8px, 32px);
}

.footer-card {
  background: var(--dynamic-footer-fill-secondary);
  border: 1px solid var(--dynamic-footer-separator);
  border-radius: var(--dynamic-footer-card-radius);
  padding: var(--footer-spacing-md);
  position: relative;
  overflow: hidden;
  transition: all 0.25s var(--dynamic-footer-spring-quick);
}

.footer-card:hover {
  background: var(--dynamic-footer-fill-primary);
  border-color: var(--dynamic-footer-accent-blue);
  transform: translateY(-2px);
  box-shadow: var(--dynamic-footer-shadow-depth-3);
}

.footer-card-wide {
  grid-column: span 2;
}

.footer-card-header {
  margin-bottom: clamp(8px, 1vw + 6px, 20px);
  position: relative;
}

.footer-card-title {
  color: var(--dynamic-footer-label-primary);
  font-size: var(--dynamic-footer-text-primary);
  font-weight: var(--dynamic-footer-font-weight-medium);
  margin: 0;
  letter-spacing: -0.02em;
}

.footer-card-accent {
  height: 2px;
  width: 40px;
  background: var(--dynamic-footer-accent-blue);
  border-radius: 2px;
  margin-top: 8px;
  transition: width var(--footer-transition-smooth);
}

.footer-card:hover .footer-card-accent {
  width: 80px;
}

/* ===== Profile Card ===== */
.footer-profile-name {
  color: var(--dynamic-footer-label-primary);
  font-size: var(--dynamic-footer-text-primary);
  font-weight: var(--dynamic-footer-font-weight-medium);
  margin: 0 0 8px 0;
}

.footer-profile-role {
  color: var(--dynamic-footer-label-secondary);
  font-size: var(--dynamic-footer-text-secondary);
  font-weight: var(--dynamic-footer-font-weight-regular);
  margin: 0 0 12px 0;
}

.footer-profile-location {
  color: var(--dynamic-footer-label-secondary);
  font-size: var(--dynamic-footer-text-secondary);
  margin: 0 0 16px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.location-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.footer-contact-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  color: var(--dynamic-footer-accent-blue);
  background: var(--dynamic-footer-fill-secondary);
  border: 1px solid transparent;
  border-radius: var(--dynamic-footer-micro-radius);
  text-decoration: none;
  font-size: var(--dynamic-footer-text-secondary);
  font-weight: var(--dynamic-footer-font-weight-medium);
  transition: all var(--footer-transition-quick);
}

.footer-contact-cta:hover {
  background: var(--dynamic-footer-accent-blue);
  color: white;
  border-color: var(--dynamic-footer-accent-blue);
  transform: translateY(-1px);
  text-decoration: none;
}

.contact-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ===== Work Navigation ===== */
.footer-work-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-work-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  color: var(--dynamic-footer-label-secondary);
  border-radius: var(--dynamic-footer-micro-radius);
  text-decoration: none;
  font-size: var(--dynamic-footer-text-secondary);
  font-weight: var(--dynamic-footer-font-weight-regular);
  transition: all var(--footer-transition-quick);
}

.footer-work-link:hover {
  color: var(--dynamic-footer-label-primary);
  background: var(--dynamic-footer-fill-primary);
  transform: translateX(4px);
  text-decoration: none;
}

.work-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ===== Social Grid ===== */
.footer-social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 12px;
}

.footer-social-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 12px;
  background: var(--dynamic-footer-fill-secondary);
  border: 1px solid var(--dynamic-footer-separator);
  border-radius: var(--dynamic-footer-micro-radius);
  color: var(--dynamic-footer-label-secondary);
  text-decoration: none;
  font-size: var(--dynamic-footer-text-small);
  font-weight: var(--dynamic-footer-font-weight-regular);
  transition: all var(--footer-transition-quick);
}

.footer-social-card:hover {
  background: var(--dynamic-footer-fill-primary);
  border-color: var(--dynamic-footer-accent-blue);
  color: var(--dynamic-footer-label-primary);
  transform: translateY(-2px);
  text-decoration: none;
}

.social-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.8;
  transition: all var(--footer-transition-quick);
}

.footer-social-card:hover .social-card-icon {
  opacity: 1;
  transform: scale(1.1);
}

/* ===== Tech Grid ===== */
.footer-tech-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-pill {
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: var(--dynamic-footer-font-weight-medium);
  cursor: default;
  transition: all var(--footer-transition-quick);
}

.tech-primary {
  background: var(--dynamic-footer-accent-blue);
  color: white;
}

.tech-secondary {
  background: var(--dynamic-footer-fill-primary);
  color: var(--dynamic-footer-label-primary);
  border: 1px solid var(--dynamic-footer-separator);
}

.tech-accent {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.tech-pill:hover {
  transform: translateY(-1px) scale(1.05);
}

/* ===== Newsletter ===== */
.footer-newsletter-enhanced {
  margin-bottom: 24px;
}

.newsletter-description {
  color: var(--dynamic-footer-label-secondary);
  font-size: var(--dynamic-footer-text-secondary);
  line-height: 1.5;
  margin: 0 0 16px 0;
}

.newsletter-form-enhanced {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.newsletter-input-wrapper {
  display: flex;
  gap: 8px;
}

.newsletter-input-enhanced {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--dynamic-footer-separator);
  border-radius: var(--dynamic-footer-micro-radius);
  background: var(--dynamic-footer-fill-secondary);
  color: var(--dynamic-footer-label-primary);
  font-size: var(--dynamic-footer-text-secondary);
  font-family: var(--dynamic-footer-font-family);
  transition: all var(--footer-transition-quick);
}

.newsletter-input-enhanced:focus {
  outline: none;
  border-color: var(--dynamic-footer-accent-blue);
  background: var(--dynamic-footer-fill-primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.newsletter-input-enhanced::placeholder {
  color: var(--dynamic-footer-label-tertiary);
}

.newsletter-submit-enhanced {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--dynamic-footer-accent-blue);
  color: white;
  border: none;
  border-radius: var(--dynamic-footer-micro-radius);
  font-size: var(--dynamic-footer-text-secondary);
  font-weight: var(--dynamic-footer-font-weight-medium);
  font-family: var(--dynamic-footer-font-family);
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--footer-transition-quick);
}

.newsletter-submit-enhanced:hover {
  background: var(--dynamic-footer-accent-purple);
  transform: translateY(-1px);
}

.newsletter-submit-enhanced:active {
  transform: translateY(0);
}

.submit-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ===== Floating Theme Control ===== */
.theme-control-floating {
  position: absolute;
  top: -30px;
  right: 15px;
  z-index: 10;
  pointer-events: auto;
}

.theme-control-floating .day-night-artwork {
  width: 45px;
  height: 45px;
}

/* ===== Status Bar ===== */
.footer-status-bar {
  margin-top: clamp(12px, 2.5vw + 4px, 32px);
  padding-top: var(--footer-spacing-md);
  border-top: 1px solid var(--dynamic-footer-separator);
}

.footer-status-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.footer-copyright-enhanced {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--dynamic-footer-label-tertiary);
  font-size: var(--dynamic-footer-text-small);
}

.copyright-symbol {
  font-weight: var(--dynamic-footer-font-weight-medium);
}

.footer-brand-link-enhanced {
  color: var(--dynamic-footer-label-primary);
  text-decoration: none;
  font-weight: var(--dynamic-footer-font-weight-medium);
  transition: color var(--footer-transition-quick);
}

.footer-brand-link-enhanced:hover {
  color: var(--dynamic-footer-accent-blue);
  text-decoration: none;
}

.rights-text {
  opacity: 0.8;
}

.footer-legal-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-legal-link-enhanced {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--dynamic-footer-label-secondary);
  text-decoration: none;
  font-size: var(--dynamic-footer-text-small);
  transition: color var(--footer-transition-quick);
}

.footer-legal-link-enhanced:hover {
  color: var(--dynamic-footer-accent-blue);
  text-decoration: none;
}

.footer-legal-link-enhanced svg {
  flex-shrink: 0;
}

.footer-cookie-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--dynamic-footer-label-secondary);
  font-size: var(--dynamic-footer-text-small);
  cursor: pointer;
  transition: color var(--footer-transition-quick);
}

.footer-cookie-btn:hover {
  color: var(--dynamic-footer-accent-blue);
}

.cookie-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ===== Cookie Settings ===== */
.footer-normal-content {
  display: block;
  transition: opacity var(--footer-transition-smooth), transform var(--footer-transition-smooth);
}

.footer-maximized:has(.footer-cookie-settings:not(.hidden)) .footer-normal-content {
  display: none;
}

.footer-cookie-settings {
  position: absolute;
  inset: 0;
  min-height: 500px;
  background: var(--dynamic-footer-bg-card);
  border-radius: var(--dynamic-footer-radius-large);
  z-index: 100;
  overflow: hidden;
  animation: slideUpFade 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.footer-cookie-settings.hidden {
  display: none;
}

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

.cookie-settings-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.cookie-settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(1rem, 2vw, 1.5rem) clamp(1.5rem, 3vw, 2rem);
  border-bottom: 1px solid var(--dynamic-footer-border-card);
  background: var(--dynamic-footer-bg-elevated);
  flex-shrink: 0;
}

.cookie-settings-header h2 {
  margin: 0;
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--dynamic-footer-text-primary);
}

.cookie-settings-close {
  background: transparent;
  border: none;
  color: var(--dynamic-footer-text-secondary);
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--footer-transition-quick);
}

.cookie-settings-close:hover {
  background: var(--dynamic-footer-hover-subtle);
  color: var(--dynamic-footer-text-primary);
}

.cookie-settings-close svg {
  width: 20px;
  height: 20px;
}

.cookie-settings-content {
  flex: 1;
  overflow-y: auto;
  padding: clamp(1rem, 2vw, 2rem) clamp(1.5rem, 3vw, 2rem);
}

.cookie-settings-intro {
  font-size: clamp(0.9rem, 1.5vw, 1rem);
  line-height: 1.6;
  color: var(--dynamic-footer-text-secondary);
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
}

.cookie-settings-footer {
  display: flex;
  gap: clamp(0.5rem, 1vw, 0.75rem);
  padding: clamp(1rem, 2vw, 1.5rem) clamp(1.5rem, 3vw, 2rem);
  border-top: 1px solid var(--dynamic-footer-border-card);
  background: var(--dynamic-footer-bg-elevated);
  flex-shrink: 0;
  flex-wrap: wrap;
}

.cookie-settings-btn {
  flex: 1;
  min-width: 140px;
  padding: clamp(0.625rem, 1.5vw, 0.75rem) clamp(1rem, 2vw, 1.5rem);
  border: none;
  border-radius: 8px;
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
  font-weight: 600;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  cursor: pointer;
  transition: all var(--footer-transition-quick);
}

.cookie-settings-btn-primary {
  background: linear-gradient(135deg, #0a84ff 0%, #0066cc 100%);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(10, 132, 255, 0.3);
}

.cookie-settings-btn-primary:hover {
  background: linear-gradient(135deg, #0066cc 0%, #004c99 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(10, 132, 255, 0.4);
}

.cookie-settings-btn-secondary {
  background: transparent;
  color: var(--dynamic-footer-text-primary);
  border: 1px solid var(--dynamic-footer-border-card);
}

.cookie-settings-btn-secondary:hover {
  background: var(--dynamic-footer-hover-subtle);
  border-color: var(--dynamic-footer-accent-blue);
  transform: translateY(-2px);
}

/* ===== Footer States ===== */
.footer-expanded .footer-minimized {
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
}

.footer-expanded .footer-maximized {
  opacity: 1;
  transform: translateY(0);
  max-height: var(--footer-max-height);
  overflow: visible;
  padding-bottom: 20px;
  pointer-events: auto;
}

.footer-maximized:has(.footer-cookie-settings:not(.hidden)) {
  min-height: 500px;
}

.site-footer-fixed.footer-expanded .footer-maximized:has(.footer-cookie-settings:not(.hidden)) {
  opacity: 1 !important;
  transform: translateY(0) !important;
  max-height: min(70vh, 700px) !important;
  min-height: 500px !important;
  overflow: visible !important;
  padding-bottom: 20px !important;
  pointer-events: auto !important;
}

/* ===== Footer Trigger Zone ===== */
.footer-trigger-zone {
  height: 100vh;
  width: 100%;
  background: transparent;
  pointer-events: none;
  scroll-snap-align: start;
}

/* ===== Mobile Responsive ===== */
@media (max-width: 480px) {
  .footer-copyright-text,
  .footer-nav-link {
    font-size: 10px;
  }
  
  .footer-nav-link {
    padding: 2px 3px;
    gap: 2px;
  }
  
  .footer-nav-link svg {
    width: 10px;
    height: 10px;
  }
  
  .footer-minimal-content {
    gap: 6px;
  }
  
  .footer-minimal-nav {
    gap: 3px;
  }
}

@media (max-width: 768px) {
  .cookie-settings-footer {
    flex-direction: column;
  }
  
  .cookie-settings-btn {
    width: 100%;
    min-width: unset;
  }
  
  .footer-card-wide {
    grid-column: span 1;
  }
}

/* ===== Utility Classes ===== */
.footer-cards-mobile-container {
  display: contents;
}