/* =========================================================
   INTERACTIVE COMPONENTS CSS - AIceberg Mind
   Collapsible content, details, mobile overlays
   ========================================================= */

/* =======================
   MOBILE BLUR OVERLAY
   ======================= */
.mobile-blur-overlay {
  display: none;
}

@media (max-width: 768px) {
  .mobile-blur-overlay {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(2px);
    z-index: 1;
    pointer-events: none;
  }
}

/* =======================
   COLLAPSIBLE CONTENT
   ======================= */
details {
  margin: 2rem 0;
  border-radius: var(--details-border-radius);
  background: var(--details-background);
  border: var(--details-border);
  overflow: hidden;
  transition: all 0.3s ease;
}

details:hover {
  background: var(--details-background-hover);
}

details[open] {
  background: var(--details-background-open);
  border-color: var(--details-border-open);
}

summary {
  padding: var(--details-padding);
  cursor: pointer;
  font-weight: 500;
  color: var(--text-primary);
  transition: all 0.3s ease;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

summary::-webkit-details-marker {
  display: none;
}

/* Removed duplicate arrow - keeping only the one in text */
summary::after {
  display: none;
}

details div {
  padding: 0 2rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  animation: fadeInSlide 0.3s ease-out;
}

@keyframes fadeInSlide {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =======================
   TEXT COLLAPSE COMPONENT
   ======================= */
.text-collapse {
  position: relative;
  margin: 2rem 0;
}

.collapse-header {
  cursor: pointer;
  transition: all 0.3s ease;
}

.collapse-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--collapse-duration-out) ease-out;
}

.text-collapse.expanded .collapse-content {
  max-height: var(--collapse-max-height);
  transition: max-height var(--collapse-duration-in) ease-in;
}

.line-compose {
  opacity: 1;
  transform: translateY(0);
}

.text-collapse.expanded .line-compose {
  opacity: 1;
  transform: translateY(0);
}

/* Disable all text animations inside expandable - always visible */
.text-collapse .line-compose .editorial-body,
.text-collapse .line-compose p,
.text-collapse .collapse-content .editorial-body,
.text-collapse .collapse-content p {
  opacity: 1 !important;
  transform: translateY(0) !important;
  transition: none !important;
}

/* =======================
   RESPONSIVE ADAPTATIONS
   ======================= */
@media (max-width: 768px) {
  details div,
  summary {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
  
  details div {
    padding-bottom: 1.5rem;
  }
}

/* =======================
   GLOBAL BUTTON SYSTEM
   Universal button for projects, actions, CTAs
   ======================= */

.btn-explore {
  width: 100%;
  padding: 0.75rem 1.5rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.btn-explore::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--brand-mint), var(--brand-cyan));
  transition: left 0.4s ease;
  z-index: -1;
}

.btn-explore:hover {
  color: #000;
  border-color: var(--brand-cyan);
}

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

.btn-explore:focus-visible {
  outline: 2px solid var(--brand-cyan);
  outline-offset: 3px;
}

/* =======================
   AUDIENCE SHOWCASE SYSTEM
   Typography Rhythm for Better Readability
   ======================= */

.audience-showcase {
  max-width: 75ch;
  margin: 0 auto;
}

.audience-intro {
  font-size: clamp(1.3rem, 3vw, 1.6rem);
  font-weight: 500;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 3rem;
  line-height: 1.4;
}

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

.audience-item {
  padding: 2rem 2rem 2rem 5.5rem;
  background: linear-gradient(135deg, 
    rgba(0, 212, 255, 0.02) 0%, 
    rgba(0, 212, 255, 0.04) 50%, 
    rgba(0, 212, 255, 0.02) 100%
  );
  border: 1px solid rgba(0, 212, 255, 0.1);
  border-radius: 12px;
  position: relative;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  opacity: 0;
  transform: translateY(20px);
  cursor: pointer;
  overflow: hidden;
  min-height: 120px;
  display: flex;
  align-items: center;
}

.audience-item.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Magnetic hover effect */
.audience-item:hover {
  background: linear-gradient(135deg, 
    rgba(0, 212, 255, 0.06) 0%, 
    rgba(0, 212, 255, 0.12) 50%, 
    rgba(0, 212, 255, 0.06) 100%
  );
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 15px 40px rgba(0, 212, 255, 0.15),
              0 5px 15px rgba(0, 212, 255, 0.1);
}

/* Clean icon styling - no background circle */
.audience-icon {
  position: absolute;
  top: 50%;
  left: 1.5rem;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--brand-cyan);
  opacity: 0.8;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform: translateY(-50%) scale(0.9);
  z-index: 1;
  filter: drop-shadow(0 2px 8px rgba(0, 212, 255, 0.3));
}

.audience-item:hover .audience-icon {
  opacity: 1;
  transform: translateY(-50%) scale(1.1) rotate(12deg);
  color: var(--brand-mint);
  filter: drop-shadow(0 4px 16px rgba(0, 212, 255, 0.5))
          drop-shadow(0 0 12px rgba(94, 228, 195, 0.4));
}

/* Animated background glow */
.audience-item::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, 
    var(--brand-cyan), 
    var(--brand-mint), 
    var(--brand-cyan)
  );
  border-radius: 14px;
  opacity: 0;
  z-index: -1;
  transition: opacity 0.4s ease;
  background-size: 200% 200%;
  animation: gradientShift 3s ease infinite;
}

.audience-item:hover::after {
  opacity: 0.3;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.audience-text {
  font-size: clamp(1.1rem, 2.3vw, 1.25rem);
  line-height: 1.7;
  color: var(--text-primary);
  margin: 0;
}

.audience-text strong {
  color: var(--brand-cyan);
  font-weight: 600;
  background: var(--gradient-main);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: all 0.3s ease;
}

.audience-text:hover strong {
  filter: brightness(1.2);
}

/* Special styling for key phrases */
.audience-key-phrase {
  font-size: clamp(1.2rem, 2.8vw, 1.4rem);
  font-weight: 500;
  color: var(--brand-mint);
  text-align: center;
  font-style: italic;
  margin: 2.5rem 0;
  padding: 1.5rem;
  position: relative;
}

.audience-key-phrase::before,
.audience-key-phrase::after {
  content: '◆';
  position: absolute;
  color: var(--brand-cyan);
  opacity: 0.3;
  font-size: 0.8em;
}

.audience-key-phrase::before {
  left: 0;
}

.audience-key-phrase::after {
  right: 0;
}

/* Responsive grid */
@media (min-width: 768px) {
  .audience-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .audience-grid {
    gap: 3rem;
  }
  
  .audience-item {
    padding: 2.5rem 3rem 2.5rem 6rem;
    min-height: 130px;
  }
}

@media (max-width: 768px) {
  .audience-item {
    padding: 1.8rem 1.5rem 1.8rem 4.5rem;
    min-height: 100px;
  }
  
  .audience-icon {
    left: 1rem;
    width: 2rem;
    height: 2rem;
  }
}

/* =======================
   UNIFIED HOVER SYSTEM
   Border compose effect for project cards and interactive elements
   ======================= */

.hover-border-compose {
  position: relative;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: pointer;
  background: transparent;
  overflow: hidden;
  /* Ensure it doesn't interfere with sticky titles */
  z-index: auto;
}

.hover-border-compose::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, 
    rgba(0, 212, 255, 0.01), 
    rgba(0, 212, 255, 0.03), 
    rgba(0, 212, 255, 0.01),
    rgba(0, 212, 255, 0.02)
  );
  background-size: 400% 400%;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  pointer-events: none;
  z-index: -1;
}

/* Border elements for text-frame system */
.hover-border-compose .text-frame-border-top,
.hover-border-compose .text-frame-border-right,
.hover-border-compose .text-frame-border-bottom,
.hover-border-compose .text-frame-border-left {
  position: absolute;
  background: var(--brand-cyan);
  pointer-events: none;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
              box-shadow 0.4s ease,
              filter 0.4s ease;
  box-shadow: 0 0 0px rgba(0, 212, 255, 0);
  filter: brightness(1);
}

/* Border positioning */
.hover-border-compose .text-frame-border-top,
.hover-border-compose .text-frame-border-bottom {
  height: 1px;
  left: 0;
  right: 0;
  transform-origin: left center;
  transform: scaleX(0);
}

.hover-border-compose .text-frame-border-left,
.hover-border-compose .text-frame-border-right {
  width: 1px;
  top: 0;
  bottom: 0;
  transform-origin: center top;
  transform: scaleY(0);
}

.hover-border-compose .text-frame-border-top { top: 0; }
.hover-border-compose .text-frame-border-right { right: 0; }
.hover-border-compose .text-frame-border-bottom { bottom: 0; }
.hover-border-compose .text-frame-border-left { left: 0; }

/* Hover effects */
.hover-border-compose:hover {
  transform: translateY(-2px);
}

.hover-border-compose:hover::before {
  opacity: 1;
  background: linear-gradient(45deg, 
    rgba(0, 212, 255, 0.01), 
    rgba(0, 212, 255, 0.04), 
    rgba(0, 212, 255, 0.02),
    rgba(0, 212, 255, 0.03),
    rgba(0, 212, 255, 0.01)
  );
  animation: gradientMove 5s ease-in-out infinite;
}

@keyframes gradientMove {
  0% { background-position: 0% 50%; }
  25% { background-position: 100% 50%; }
  50% { background-position: 100% 100%; }
  75% { background-position: 0% 100%; }
  100% { background-position: 0% 50%; }
}

.hover-border-compose:hover .text-frame-border-top,
.hover-border-compose:hover .text-frame-border-right,
.hover-border-compose:hover .text-frame-border-bottom,
.hover-border-compose:hover .text-frame-border-left {
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.6),
              0 0 16px rgba(0, 212, 255, 0.3);
  filter: brightness(1.4) saturate(1.2);
}

.hover-border-compose:hover .text-frame-border-top {
  transform: scaleX(1);
  transition-delay: 0s;
}

.hover-border-compose:hover .text-frame-border-right {
  transform: scaleY(1);
  transition-delay: 0.1s;
}

.hover-border-compose:hover .text-frame-border-bottom {
  transform: scaleX(1);
  transition-delay: 0.2s;
}

.hover-border-compose:hover .text-frame-border-left {
  transform: scaleY(1);
  transition-delay: 0.3s;
}

/* Subtle intensity variation */
.hover-subtle.hover-border-compose:hover {
  transform: translateY(-1px);
}

/* =======================
   ACCESSIBILITY
   ======================= */
@media (prefers-reduced-motion: reduce) {
  .line-compose,
  details div,
  .btn-explore,
  .audience-item,
  .audience-icon,
  .hover-border-compose,
  .hover-border-compose::before {
    animation: none;
    opacity: 1;
    transform: none;
    transition: none;
  }
  
  .collapse-content {
    transition: none;
  }
  
  .audience-item::after {
    animation: none;
  }
  
  .hover-border-compose:hover {
    transform: none;
  }
}

/* Focus states */
summary:focus-visible {
  outline: 2px solid var(--brand-cyan);
  outline-offset: 3px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .content-block,
  .btn-explore,
  .audience-item {
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 1rem;
    border-radius: 8px;
  }
}