/* ========================================
   PROJECTS SECTION STYLES
======================================== */
.projects {
  background: var(--background-color);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18.75rem, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.project-card {
  padding: 2rem;
  cursor: pointer;
  transition: transform 0.24s cubic-bezier(0.4, 0, 0.2, 1),
    border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
    background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--glass-bg);
  border: 0.0625rem solid var(--glass-border);
  border-radius: var(--radius-surface);
  backdrop-filter: blur(var(--surface-blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--surface-blur)) saturate(180%);
  box-shadow: var(--elevation-surface),
    0 0 0 0.0625rem var(--surface-inset) inset;
  will-change: transform;
}

.project-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-0.125rem);
  box-shadow: var(--elevation-surface-strong),
    0 0 0 0.0625rem var(--surface-inset-strong) inset;
  background: var(--glass-bg-hover);
}

.project-card:active {
  transform: translateY(-0.0625rem);
}

.project-title {
  font-size: var(--font-size-h3);
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--text-color);
}

.project-description {
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--text-color);
  margin-bottom: 1.5rem;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.project-date {
  font-size: var(--font-size-secondary);
  color: var(--text-color);
}

.projects-footer {
  text-align: center;
}

.projects-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.3rem;
  border-radius: 999px;
  border: 0.0625rem solid var(--surface-border-strong);
  background: var(--surface-1);
  color: var(--text-color);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 400;
  text-decoration: none;
  box-shadow: var(--elevation-surface);
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
  will-change: transform;
}

.projects-link::after {
  content: '\2197';
  font-size: 0.95em;
  line-height: 1;
  transform: translateY(-0.02em);
}

.projects-link:hover {
  transform: translateY(-0.1rem);
  border-color: var(--surface-border-strong);
  background: var(--surface-2);
  box-shadow: var(--elevation-surface-strong);
  text-decoration: none;
}

.projects-link:focus-visible {
  outline: 0.125rem solid var(--text-color);
  outline-offset: 0.15rem;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #0000004D;
  backdrop-filter: blur(0.25rem);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--background-color);
  border-radius: var(--radius-surface);
  width: 90%;
  max-width: 43.75rem;
  max-height: 80vh;
  position: relative;
  transform: scale(0.8);
  transition: transform 0.24s ease;
  border: 0.0625rem solid var(--border-color);
  overflow: hidden;
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-scroll-container {
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: sticky;
  top: 1.25rem;
  right: 0;
  float: right;
  background: #FFFFFF1A;
  backdrop-filter: blur(0.5rem);
  -webkit-backdrop-filter: blur(0.5rem);
  border: 0.0625rem solid #FFFFFF26;
  cursor: pointer;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  z-index: 1001;
  box-shadow: 0 0.125rem 0.5rem #0000001A;
  outline: none;
  transition: background-color 0.18s ease, transform 0.18s ease;
  margin: 1.25rem 1.25rem 0 0;
}

.modal-close:hover {
  background: #FFFFFF33;
  transform: scale(1.05);
}

.close-line {
  position: absolute;
  width: 1rem;
  height: 0.125rem;
  background: var(--text-color);
  border-radius: 0.0625rem;
}

.close-line:first-child {
  transform: rotate(45deg);
}

.close-line:last-child {
  transform: rotate(-45deg);
}

.modal-header {
  padding: 2rem 2rem 1rem 2rem;
}

.modal-title {
  font-size: clamp(1.35rem, 1.1rem + 0.5vw, 1.5rem);
  font-weight: 600;
  color: var(--text-color);
  margin: 0 0 0.75rem 0;
}

.modal-year {
  font-size: var(--font-size-secondary);
  color: var(--text-color);
  font-weight: 400;
}

.modal-body {
  padding: 1.5rem 2rem 2rem 2rem;
}

.modal-description {
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--text-color);
  white-space: pre-line;
  margin: 0;
}