/**
 * Card Components CSS
 * Premium card designs with hover effects
 */

/* ============================================
   BASE CARD
   ============================================ */

.card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: 
    transform var(--duration-md) var(--ease-out),
    box-shadow var(--duration-md) var(--ease-out);
}

/* Card variants */
.card--elevated {
  box-shadow: var(--shadow-card);
}

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

.card--bordered {
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.card--glass {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.card--dark {
  background: var(--color-bg-secondary);
  color: var(--color-text-inverse);
}

/* ============================================
   CARD HOVER EFFECTS
   ============================================ */

/* Lift effect */
.card--lift {
  transition: 
    transform var(--duration-md) var(--ease-spring),
    box-shadow var(--duration-md) var(--ease-out);
}

.card--lift:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: var(--shadow-card-raised);
}

/* Tilt effect (3D) */
.card--tilt {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.card--tilt:hover {
  transform: rotateX(2deg) rotateY(2deg);
}

/* Glow border effect */
.card--glow {
  position: relative;
}

.card--glow::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(
    135deg,
    var(--color-accent-primary),
    var(--color-accent-secondary),
    var(--color-accent-tertiary)
  );
  -webkit-mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--duration-md) var(--ease-out);
}

.card--glow:hover::before {
  opacity: 1;
}

/* ============================================
   PUBLICATION CARD
   ============================================ */

.publication-card {
  position: relative;
  padding: var(--space-4) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: 
    background var(--duration-sm) var(--ease-out),
    padding-left var(--duration-sm) var(--ease-out);
}

.publication-card:last-child {
  border-bottom: none;
}

.publication-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--color-accent-primary);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--duration-md) var(--ease-out);
}

.publication-card:hover {
  background: rgba(0, 0, 0, 0.02);
  padding-left: var(--space-4);
}

.publication-card:hover::before {
  transform: scaleY(1);
}

.publication-card__title {
  font-family: var(--font-body);
  font-weight: var(--font-semibold);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.publication-card__title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-sm) var(--ease-out);
}

.publication-card__title a:hover {
  color: var(--color-accent-primary);
}

.publication-card__meta {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.publication-card__venue {
  color: var(--color-accent-primary);
  font-weight: var(--font-medium);
}

.publication-card__authors {
  color: var(--color-text-muted);
}

.publication-card__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  background: var(--color-accent-primary);
  color: white;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* ============================================
   PROJECT CARD
   ============================================ */

.project-card {
  position: relative;
  display: block;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: 
    transform var(--duration-md) var(--ease-spring),
    box-shadow var(--duration-md) var(--ease-out);
}

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

.project-card__image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-lg) var(--ease-out);
}

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

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.6) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity var(--duration-md) var(--ease-out);
}

.project-card:hover .project-card__overlay {
  opacity: 1;
}

.project-card__content {
  padding: var(--space-5);
}

.project-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--font-normal);
  margin-bottom: var(--space-2);
  transition: color var(--duration-sm) var(--ease-out);
}

.project-card:hover .project-card__title {
  color: var(--color-accent-primary);
}

.project-card__description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.project-card__tag {
  padding: var(--space-1) var(--space-2);
  background: rgba(0, 0, 0, 0.05);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
}

/* ============================================
   EDUCATION CARD
   ============================================ */

.education-card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  transition: 
    transform var(--duration-md) var(--ease-out),
    box-shadow var(--duration-md) var(--ease-out);
}

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

.education-card__date {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--color-accent-primary);
  margin-bottom: var(--space-4);
}

.education-card__institution {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-1);
}

.education-card__location {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.education-card__degree {
  color: var(--color-accent-primary);
  font-weight: var(--font-medium);
}

.education-card__logo {
  max-width: 120px;
  height: auto;
  margin-bottom: var(--space-4);
  filter: grayscale(20%);
  transition: filter var(--duration-sm) var(--ease-out);
}

.education-card:hover .education-card__logo {
  filter: grayscale(0%);
}

/* Node indicator for timeline */
.education-card__node {
  position: absolute;
  left: -15px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  background: var(--color-accent-primary);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-glow-sm);
  z-index: 2;
}

.education-card__node::after {
  content: '';
  position: absolute;
  inset: -5px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-accent-primary);
  opacity: 0;
  animation: node-pulse 2s ease-in-out infinite;
}

@keyframes node-pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0;
  }
  50% {
    transform: scale(1.4);
    opacity: 0.5;
  }
}

/* ============================================
   NEWS CARD
   ============================================ */

.news-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.news-card:last-child {
  border-bottom: none;
}

.news-card__date {
  flex-shrink: 0;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--color-accent-primary);
  min-width: 100px;
}

.news-card__content {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

.news-card__content a {
  color: var(--color-accent-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-sm) var(--ease-out);
}

.news-card__content a:hover {
  border-color: var(--color-accent-primary);
}

/* ============================================
   EXPERIENCE CARD
   ============================================ */

.experience-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  transition: 
    transform var(--duration-md) var(--ease-out),
    box-shadow var(--duration-md) var(--ease-out);
}

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

.experience-card__logo {
  width: 80px;
  height: 80px;
  object-fit: contain;
}

.experience-card__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.experience-card__company {
  font-family: var(--font-display);
  font-size: var(--text-xl);
}

.experience-card__role {
  color: var(--color-accent-primary);
  font-weight: var(--font-medium);
}

.experience-card__period {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================
   SKILL CARD
   ============================================ */

.skill-card {
  padding: var(--space-4);
  background: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-lg);
}

.skill-card__category {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.skill-card__items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skill-card__item {
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  box-shadow: var(--shadow-xs);
  transition: 
    transform var(--duration-sm) var(--ease-out),
    box-shadow var(--duration-sm) var(--ease-out);
}

.skill-card__item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

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

@media (max-width: 768px) {
  .experience-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .experience-card__logo {
    margin: 0 auto;
  }
  
  .news-card {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .news-card__date {
    min-width: auto;
  }
}

/* ============================================
   REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  .card--lift:hover,
  .card--tilt:hover,
  .project-card:hover,
  .education-card:hover,
  .experience-card:hover {
    transform: none;
  }
  
  .project-card:hover .project-card__image img {
    transform: none;
  }
  
  .education-card__node::after {
    animation: none;
  }
}