:root {
  --color-bg-base: #faf8f6;
  --color-bg-card: #ffffff;
  --color-border: #e2deda;
  --color-border-hover: #cbd5e1;
  
  --color-text-main: #181411;
  --color-text-muted: #625c56;
  
  /* Brand Accents */
  --color-primary: #db2777;      /* Warm Pink */
  --color-secondary: #7c3aed;    /* Violet */
  --color-surface-tint: #fdf2f8; /* Soft pink tint */
  
  /* Typography Scale */
  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;
  
  /* Shadows & Interactions */
  --shadow-subtle: 0 4px 12px rgba(24, 20, 17, 0.03);
  --shadow-hover: 0 12px 24px rgba(24, 20, 17, 0.06);
  --transition-default: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   2. Reset & Typography Baseline
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-system);
  background-color: var(--color-bg-base);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.icon-sm {
  width: 16px;
  height: 16px;
  display: inline-block;
  vertical-align: middle;
}

/* ==========================================================================
   3. Header & Navigation Layout
   ========================================================================== */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2rem;
  background-color: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-container {
  display: flex;
  align-items: center;
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text-main);
}

.logo-text span {
  color: var(--color-primary);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 1.75rem;
}

nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition-default);
}

nav a:hover, nav a.active {
  color: var(--color-primary);
}

/* ==========================================================================
   4. Buttons & Components
   ========================================================================== */
.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.25rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: background-color var(--transition-default), transform var(--transition-default);
}

.btn-primary:hover {
  background-color: #be185d;
}

.btn-primary:active {
  transform: scale(0.98);
}

/* ==========================================================================
   5. Search Hero Panel
   ========================================================================== */
.search-hero {
  background: linear-gradient(135deg, var(--color-surface-tint), #f5f3ff);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2rem;
  text-align: center;
  margin-bottom: 2.5rem;
}

.hero-content h1 {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  color: var(--color-text-main);
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.hero-content p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto 2.5rem;
}

/* ==========================================================================
   6. Search Form & Filters Layout
   ========================================================================== */
.search-container {
  max-width: 800px;
  margin: 0 auto;
}

.search-input-wrapper {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.input-icon-group {
  position: relative;
  flex-grow: 1;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 1rem;
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
}

#project-search {
  width: 100%;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.25rem 0.85rem 2.75rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text-main);
  transition: border-color var(--transition-default), box-shadow var(--transition-default);
}

#project-search:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(219, 39, 119, 0.1);
}

.search-submit-btn {
  background-color: var(--color-secondary);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.75rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-default);
}

.search-submit-btn:hover {
  background-color: #6d28d9;
}

.filters-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  text-align: left;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.filter-group label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-group select {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--color-text-main);
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition-default);
}

.filter-group select:focus {
  border-color: var(--color-primary);
}

/* ==========================================================================
   7. Grid Content Display & Cards
   ========================================================================== */
main {
  max-width: 1140px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  flex-grow: 1;
  width: 100%;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.75rem;
}

.section-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
}

.view-toggle {
  display: flex;
  gap: 0.5rem;
}

.toggle-btn {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-default);
}

.toggle-btn.active, .toggle-btn:hover {
  background-color: var(--color-surface-tint);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.active-filters-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.filter-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--color-surface-tint);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
}

.filter-tag .remove-icon {
  cursor: pointer;
  width: 14px;
  height: 14px;
  opacity: 0.75;
  transition: opacity var(--transition-default);
}

.filter-tag .remove-icon:hover {
  opacity: 1;
}

/* Grid Layout */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
  margin-bottom: 3rem;
}

/* Project Cards */
.project-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-subtle);
  transition: transform var(--transition-default), box-shadow var(--transition-default);
  display: flex;
  flex-direction: column;
}

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

.project-thumbnail {
  position: relative;
  width: 100%;
  height: 180px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 1rem;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-default);
}

.project-card:hover .project-img {
  transform: scale(1.04);
}

.badge {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #ffffff;
}

.badge-active { background-color: #10b981; }
.badge-completed { background-color: #3b82f6; }
.badge-planning { background-color: #f59e0b; }

.project-card-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: 0.3rem;
  display: inline-block;
}

.project-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.project-link {
  text-decoration: none;
  color: var(--color-text-main);
  transition: color var(--transition-default);
}

.project-link:hover {
  color: var(--color-primary);
}

.project-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  border-top: 1px solid var(--color-border);
  padding-top: 0.85rem;
  color: var(--color-text-muted);
}

.project-likes {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  color: var(--color-primary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-default);
}

.project-likes:hover {
  background-color: var(--color-surface-tint);
}

/* List View Modifier */
.projects-grid.list-view {
  grid-template-columns: 1fr;
}

.projects-grid.list-view .project-card {
  flex-direction: row;
  gap: 1.5rem;
}

.projects-grid.list-view .project-thumbnail {
  width: 220px;
  height: 140px;
  margin-bottom: 0;
  flex-shrink: 0;
}

/* ==========================================================================
   8. Pagination Controls
   ========================================================================== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
}

.pagination-btn {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 1.15rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-main);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-default);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.page-numbers {
  display: flex;
  gap: 0.4rem;
}

.page-num {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-default);
}

.page-num.active, .page-num:hover {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

/* ==========================================================================
   9. Footer
   ========================================================================== */
footer {
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-card);
  padding: 2rem;
  text-align: center;
  margin-top: auto;
}

footer p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}