/* ================= COLLEGE & PRESENTATIONS DEDICATED STYLES ================= */

/* ========== COLLEGE ASSIGNMENTS ========== */
.college-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.assignment-card {
  display: flex;
  flex-direction: column;
  padding: 2rem;
  height: 100%;
  position: relative;
  cursor: pointer;
  overflow: hidden;
  transition: all var(--transition-smooth);
  background: var(--surface-bg);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-main);
  box-shadow: var(--surface-shadow);
}

.assignment-card::before {
  content: attr(data-index);
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-family: monospace;
  color: var(--glass-border);
  font-size: 2rem;
  font-weight: 700;
  opacity: 0.5;
  transition: all var(--transition-smooth);
}

.assignment-card:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 12px 50px rgba(41, 121, 255, 0.2);
  transform: translateY(-8px);
}

.assignment-card:hover::before {
  color: var(--accent-primary);
  opacity: 0.4;
  transform: scale(1.1);
}

.assignment-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid rgba(41, 121, 255, 0.15);
}

.assignment-course {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  background: rgba(41, 121, 255, 0.1);
  color: var(--accent-primary);
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.assignment-date {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  font-family: monospace;
}

.assignment-title {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  transition: color var(--transition-fast);
  line-height: 1.3;
}

.assignment-card:hover .assignment-title {
  color: var(--accent-primary);
}

.assignment-description {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
  flex-grow: 1;
}

.assignment-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.assignment-tag {
  display: inline-block;
  padding: 0.35rem 0.8rem;
  background: rgba(41, 121, 255, 0.1);
  color: var(--accent-primary);
  border: 1px solid rgba(41, 121, 255, 0.3);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.assignment-card:hover .assignment-tag {
  background: rgba(41, 121, 255, 0.15);
  border-color: rgba(41, 121, 255, 0.5);
  transform: translateY(-2px);
}

.assignment-doc {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: auto;
}

.doc-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--accent-primary);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.doc-link:hover {
  gap: 0.8rem;
  text-decoration: underline;
}

/* ========== PRESENTATIONS ========== */
.presentations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.presentation-card {
  display: flex;
  flex-direction: column;
  padding: 2rem;
  height: 100%;
  position: relative;
  cursor: pointer;
  overflow: hidden;
  transition: all var(--transition-smooth);
  background: var(--surface-bg);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-main);
  box-shadow: var(--surface-shadow);
}

.presentation-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-primary), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-smooth);
}

.presentation-card:hover::after {
  transform: scaleX(1);
}

.presentation-card::before {
  content: attr(data-index);
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-family: monospace;
  color: var(--glass-border);
  font-size: 2rem;
  font-weight: 700;
  opacity: 0.5;
  transition: all var(--transition-smooth);
}

.presentation-card:hover::before {
  color: var(--accent-primary);
  opacity: 0.4;
  transform: scale(1.1);
}

.presentation-card:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 12px 50px rgba(41, 121, 255, 0.2);
  transform: translateY(-8px);
}

.presentation-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid rgba(41, 121, 255, 0.15);
}

.presentation-category {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  background: rgba(41, 121, 255, 0.1);
  color: var(--accent-primary);
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.presentation-date {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  font-family: monospace;
}

.presentation-title {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  transition: color var(--transition-fast);
  line-height: 1.3;
}

.presentation-card:hover .presentation-title {
  color: var(--accent-primary);
}

.presentation-desc {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
  flex-grow: 1;
}

.presentation-stats {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: rgba(41, 121, 255, 0.05);
  border-radius: 8px;
  border: 1px solid rgba(41, 121, 255, 0.1);
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.stat-icon {
  font-size: 1.2rem;
}

.stat-text {
  font-weight: 500;
}

.presentation-actions {
  display: flex;
  gap: 1rem;
  margin-top: auto;
  flex-wrap: wrap;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-main);
  transition: all var(--transition-smooth);
  cursor: pointer;
  flex: 1;
  justify-content: center;
  border: 2px solid var(--accent-primary);
}

.download-btn {
  color: #ffffff;
  background: var(--accent-primary);
}

.download-btn:hover {
  background: transparent;
  color: var(--accent-primary);
  box-shadow: 0 6px 20px rgba(41, 121, 255, 0.3);
  transform: translateY(-2px);
}

.preview-btn {
  color: var(--accent-primary);
  background: transparent;
}

.preview-btn:hover {
  background: rgba(41, 121, 255, 0.1);
  box-shadow: 0 6px 20px rgba(41, 121, 255, 0.15);
  transform: translateY(-2px);
}

/* ========== TIPS GRID ========== */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.tip-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem;
  background: var(--surface-bg);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-main);
  box-shadow: var(--surface-shadow);
  transition: all var(--transition-smooth);
}

.tip-card:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 12px 40px rgba(41, 121, 255, 0.15);
  transform: translateY(-5px);
}

.tip-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.tip-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
  color: var(--text-primary);
}

.tip-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ========== RESPONSIVE COLLEGE & PRESENTATIONS ========== */
@media (max-width: 768px) {
  .college-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .presentations-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .tips-grid {
    grid-template-columns: 1fr;
  }

  .assignment-card {
    padding: 1rem;
  }

  .presentation-card {
    padding: 1rem;
  }

  .presentation-stats {
    flex-direction: column;
    gap: 1rem;
  }

  .presentation-actions {
    flex-direction: column;
  }

  .action-btn {
    flex: none;
    width: 100%;
  }

  .assignment-doc {
    flex-direction: column;
  }

  .doc-link {
    width: 100%;
    justify-content: center;
  }

  .assignment-description,
  .presentation-desc,
  .stat-item,
  .doc-link,
  .action-btn {
    font-size: 0.9rem;
  }

  .assignment-title,
  .presentation-title {
    font-size: 1.15rem;
  }

  .assignment-card img,
  .presentation-card img {
    width: 100%;
    max-height: 150px;
    object-fit: cover;
    border-radius: calc(var(--radius-main) - 4px);
  }
}