/* Card Grid Layout and Styling */

/* Material Design Token Fallbacks */
:root {
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;

  --radius-small: 8px;
  --radius-medium: 12px;

  --elevation-2: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  --elevation-3: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);

  --transition-fast: 200ms ease;
}

[data-theme="dark"] {
  --card-bg: #2d2d2d;
  --card-hover-bg: #383838;
}

[data-theme="light"] {
  --card-bg: #ffffff;
  --card-hover-bg: #f5f5f5;
}

/* Card Grid Layout */
.card-grid {
  display: grid;
  gap: var(--space-6);
  max-width: 1200px;
  margin: var(--space-6) auto;
  padding: 0 var(--space-4);
  align-items: start;
}

@media (min-width: 768px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

/* Card Component Styling */
.project-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-medium);
  box-shadow: var(--elevation-2);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
  border-width: 3px;
  border-style: solid;
  min-height: 280px;
}

.project-card:hover {
  background-color: var(--card-hover-bg);
  box-shadow: var(--elevation-3);
  transform: translateY(-2px);
}

/* Theme-aware border colors */
[data-theme="dark"] .card-blue { border-color: #42a5f5; }
[data-theme="light"] .card-blue { border-color: #1e88e5; }

[data-theme="dark"] .card-orange { border-color: #ffb74d; }
[data-theme="light"] .card-orange { border-color: #f57c00; }

[data-theme="dark"] .card-teal { border-color: #26a69a; }
[data-theme="light"] .card-teal { border-color: #00897b; }

[data-theme="dark"] .card-coral { border-color: #ef5350; }
[data-theme="light"] .card-coral { border-color: #e53935; }

[data-theme="dark"] .card-coral-dark { border-color: #e64a19; }
[data-theme="light"] .card-coral-dark { border-color: #bf360c; }

[data-theme="dark"] .card-purple { border-color: #ba68c8; }
[data-theme="light"] .card-purple { border-color: #7b1fa2; }

[data-theme="dark"] .card-gray { border-color: #9e9e9e; }
[data-theme="light"] .card-gray { border-color: #616161; }

/* Icon Styling (Square with Rounded Corners) */
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-small);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
}

[data-theme="dark"] .card-icon { background-color: rgba(255, 255, 255, 0.1); }
[data-theme="light"] .card-icon { background-color: rgba(0, 0, 0, 0.05); }

.card-icon .material-icons {
  font-size: 28px;
}

/* Card Title */
.card-title {
  margin: 0 0 var(--space-2) 0;
  font-size: 1.4em;
  color: var(--primary-text);
}

/* Description Truncation Logic */
.card-description {
  flex-grow: 1;
  margin-bottom: var(--space-4);
  color: var(--primary-text);
}

.card-content-hidden {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.toggle-description-btn {
  background: none;
  border: none;
  color: var(--link-color);
  cursor: pointer;
  font-weight: bold;
  padding: var(--space-2) 0;
  align-self: flex-start;
  pointer-events: auto;
}

.toggle-description-btn:hover {
  text-decoration: underline;
}

/* Launch Button */
.launch-button {
  display: inline-block;
  background-color: var(--accent-color);
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-small);
  text-decoration: none;
  font-weight: bold;
  align-self: flex-start;
  transition: opacity var(--transition-fast);
}

.launch-button:hover {
  opacity: 0.9;
}

/* Hero Card Styling */
.hero-card {
  max-width: 1000px;
  margin: var(--space-4) auto var(--space-6);
  border-radius: var(--radius-medium);
  box-shadow: var(--elevation-3);
  overflow: hidden;
}

[data-theme="dark"] .hero-card {
  background-color: #2d2d2d;
}

[data-theme="light"] .hero-card {
  background-color: #ffffff;
}

.hero-card .card-header {
  background-color: #4a4a4a;
  padding: var(--space-4);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

[data-theme="light"] .hero-card .card-header {
  background-color: #616161;
}

.hero-card .card-header h1 {
  margin: 0;
  color: white;
}

.hero-card .card-header .material-icons {
  color: white;
  font-size: 28px;
}

.hero-card .md-card-content {
  padding: var(--space-4);
  color: var(--primary-text);
}

.hero-card .md-card-content h2 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
  border-bottom: none;
  font-size: 1.3em;
  color: #808080;
}

[data-theme="light"] .hero-card .md-card-content h2 {
  color: #424242;
}

.hero-card .md-card-content p {
  margin: 0;
  line-height: 1.6;
}

/* Material Card Overrides */
md-card {
  width: 100%;
}

/* Category Section Styling */
.category-section {
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-medium);
  padding: var(--space-4);
  margin-bottom: var(--space-6);
}

[data-theme="light"] .category-section {
  background-color: rgba(0, 0, 0, 0.03);
}

.category-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.category-header h2 {
  margin: 0;
  font-size: 1.3em;
  color: #9e9e9e;
}

[data-theme="light"] .category-header h2 {
  color: #616161;
}

.category-header .material-icons {
  font-size: 28px;
  color: #9e9e9e;
}

[data-theme="light"] .category-header .material-icons {
  color: #757575;
}

[data-theme="light"] .category-header {
  border-bottom-color: rgba(0, 0, 0, 0.1);
}

.category-grid {
  display: grid;
  gap: var(--space-6);
  align-items: start;
}

@media (min-width: 768px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .category-grid {
    grid-template-columns: 1fr;
  }
}