/**
 * projects.css - 项目网格、项目卡片
 * NEGIAO.github.io 模块化 CSS
 */

/* ========================
   Projects Grid
   ======================== */
.projects {
  padding: var(--space-4xl) 0;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
  max-width: 1200px;
  margin: 0 auto;
}

/* ========================
   Project Card
   ======================== */
.project-item {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.project-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: var(--primary);
  transition: height 0.3s ease;
}

.project-item:hover::before {
  height: 100%;
}

.project-item:hover {
  background: rgba(26, 31, 46, 0.6);
  border-color: rgba(0, 217, 255, 0.2);
  transform: translateY(-4px);
}

/* ========================
   Project Header
   ======================== */
.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.project-number {
  font-size: 2rem;
  font-weight: 700;
  color: rgba(0, 217, 255, 0.3);
  line-height: 1;
}

.project-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 10px;
  background: rgba(61, 109, 177, 0.495);
  border-radius: 4px;
}

/* ========================
   Project Content
   ======================== */
.project-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.project-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

/* ========================
   Project Tags
   ======================== */
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-xl);
}

/* ========================
   Project Link
   ======================== */
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: gap 0.3s ease;
}

.project-link:hover {
  gap: 12px;
}

.project-link i {
  font-size: 0.85rem;
  transition: transform 0.3s ease;
}

.project-link:hover i {
  transform: translateX(4px);
}

/* ========================
   Project Actions
   ======================== */
.project-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.project-link-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.project-link-secondary:hover {
  color: var(--primary);
  background: rgba(0, 217, 255, 0.1);
  border-color: var(--primary);
}

/* ========================
   Projects Responsive
   ======================== */
@media (max-width: 768px) {
  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .project-item {
    padding: var(--space-xl);
  }

  .project-number {
    font-size: 1.5rem;
  }

  .project-title {
    font-size: 1.25rem;
  }
}

/* ========================
   Light Theme Overrides
   ======================== */
body[data-theme='light'] .project-item {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
}

body[data-theme='light'] .project-item::before {
  background: var(--primary);
  width: 4px;
}

body[data-theme='light'] .project-item:hover {
  background: #FFFFFF;
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

body[data-theme='light'] .project-number {
  color: rgba(37, 99, 235, 0.25);
}

body[data-theme='light'] .project-label {
  background: rgba(37, 99, 235, 0.12);
  color: var(--primary);
  font-weight: 600;
}

body[data-theme='light'] .project-link {
  color: var(--primary);
  font-weight: 600;
}

body[data-theme='light'] .project-link-secondary {
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

body[data-theme='light'] .project-link-secondary:hover {
  color: var(--primary);
  background: rgba(37, 99, 235, 0.1);
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.15);
}