.section-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

@media (prefers-color-scheme: dark) {
    .section-title {
        color: #f2f2f2;
    }
}

.section-title i {
    color: var(--neon-green);
    font-size: 1.1rem;
}

.section-title span.highlight-header {
    text-transform: uppercase;
    background: linear-gradient(
        120deg,
        rgba(74, 222, 128, 0.6) 0%,
        rgba(74, 222, 128, 0.3) 100%
    );
    padding: 0 8px;
    border-radius: 6px;
    display: inline-block;
}

.toolbox-grid {
    width: 100%;
}

.toolbox-track {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

@media (min-width: 768px) {
    .toolbox {
        margin-bottom: 3rem;
    }
}

@media (max-width: 900px) {
    .toolbox-track {
        grid-template-columns: repeat(3, 1fr);
    }
}

.tool-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    padding: 0 1rem;
    height: 60px;
    width: 100%;
    background-color: var(--bg-card);
    border: 1px solid var(--card-border);
    border-radius: 999px;
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: all 0.2s ease;
    cursor: default;
    white-space: nowrap;
}

.tool-item i {
    font-size: 1.4rem;
    color: var(--text-muted);
    transition: color 0.2s ease;
}

.tool-item i,
.tool-item span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.tool-item > * {
    align-self: center;
}

@media (hover: hover) {
    .tool-item:hover {
        transform: none;
        box-shadow: none;
        border-color: var(--card-border);
    }

    .tool-item:hover span {
        color: var(--text-muted);
    }

    .tool-item:hover i {
        color: var(--neon-green);
    }
}

.tool-item:active {
    border-color: var(--card-border);
    transform: scale(0.98);
}

@media (max-width: 600px) {
    .toolbox-grid {
        overflow: hidden;
        margin: 0 -1.5rem;
        padding: 0;
        width: calc(100% + 3rem);
        mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
        -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    }

    .toolbox-track {
        display: flex;
        width: max-content;
        gap: 0;
        padding: 0;
        
        will-change: transform;
        transform: translate3d(0, 0, 0);
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
        perspective: 1000px;
        -webkit-perspective: 1000px;

        cursor: grab;
        touch-action: pan-y;
    }

    .toolbox-track:active {
        cursor: grabbing;
    }

    .toolbox-set {
        display: flex;
        gap: 1rem;
        padding-right: 1rem;
        
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
    }

    .tool-item {
        flex-shrink: 0;
        width: auto;
        min-width: 140px;
        height: 50px;
        transform: translateZ(0); 
    }
}

/* FILTERS */
.filter-container {
  margin-bottom: 2.5rem;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* 1. DESKTOP WRAPPER (Buttons) */
.filter-desktop-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  padding: 0.5rem;
}

.filter-btn {
  background-color: var(--bg-card);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
}

@media (hover: hover) {
  .filter-btn:hover {
    background-color: var(--bg-tag);
    border-color: var(--neon-green);
    color: var(--text-main);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
    transform: translateY(-1px);
  }
}

.filter-btn.active {
  background-color: var(--neon-green);
  color: #000;
  border-color: var(--neon-green);
  font-weight: 700;
}

.filter-mobile-wrapper {
  display: none;
  width: 100%;
}

.custom-select-container {
  position: relative;
  width: 100%;
  max-width: 100%;
}

.mobile-filter-select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--card-border);
  color: var(--text-main);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.4rem 1.8rem 0.4rem 0.1rem;
  border-radius: 0;
  cursor: pointer;
  outline: none;
  box-shadow: none;
}

.custom-select-container::after {
  content: '';
  position: absolute;
  right: 0.2rem;
  top: 50%;
  transform: translateY(-55%) rotate(45deg);
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--text-muted);
  border-bottom: 1.5px solid var(--text-muted);
  pointer-events: none;
}

.mobile-filter-select:focus {
  border-bottom-color: var(--neon-green);
}

.mobile-filter-select:focus + .custom-select-container::after,
.custom-select-container:focus-within::after {
  border-right-color: var(--neon-green);
  border-bottom-color: var(--neon-green);
}

@media (prefers-color-scheme: dark) {
  .mobile-filter-select {
    color: #f4f4f4;
    border-bottom-color: rgba(255, 255, 255, 0.18);
  }
  
  .custom-select-container::after {
    border-right-color: rgba(255, 255, 255, 0.55);
    border-bottom-color: rgba(255, 255, 255, 0.55);
  }
  
  @media (hover: hover) {
    .filter-btn:hover {
      box-shadow: 0 3px 8px rgba(0, 0, 0, 0.18);
    }
  }
}

@media (max-width: 600px) {
  .filter-desktop-wrapper {
    display: none;
  }
  
  .filter-mobile-wrapper {
    display: block;
  }
  
  .filter-container {
    margin-bottom: 1.5rem;
    padding: 0;
  }
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

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

.project-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 1.5rem;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
    cursor: default;
}

@media (prefers-color-scheme: dark) {
    .project-card {
        border-color: rgba(255, 255, 255, 0.08);
        box-shadow: 0 10px 24px -20px rgba(0, 0, 0, 0.85);
    }
}

@media (hover: hover) {
    .project-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.15);
        border-color: var(--card-border);
    }
    
    .project-card:hover .app-icon {
        transform: scale(1.05);
    }
}

@media (prefers-color-scheme: dark) and (hover: hover) {
    .project-card:hover {
        box-shadow: 0 18px 44px -28px rgba(0, 0, 0, 0.95);
        border-color: rgba(255, 255, 255, 0.12);
    }
}

.card-top-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2rem;
}

.app-icon {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    object-fit: cover;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.app-icon.placeholder {
    background: linear-gradient(135deg, #333 0%, #000 100%);
    color: var(--neon-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

@media (prefers-color-scheme: dark) {
    .app-icon.placeholder {
        background: linear-gradient(135deg, #222 0%, #111 100%);
        border: 1px solid #333;
    }
}

.open-btn {
  background-color: var(--neon-green);
  color: #000;
  border: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0;
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(74, 222, 128, 0.3);
  transition: all 0.2s ease;
  line-height: 0;
}

.open-btn i {
  font-size: 1.2rem;
  flex-shrink: 0;
  display: block;
  line-height: 1;
}

.open-btn .card-btn-text {
  display: none;
}

@media (min-width: 601px) {
  .open-btn {
    padding: 0.5rem 1rem;
    width: auto;
    height: auto;
    border-radius: 999px;
    line-height: 1.5;
  }
  
  .open-btn .card-btn-text {
    display: inline-block;
  }

  .open-btn i {
    display: none;
  }
}

.open-btn:hover {
    background-color: var(--neon-green);
    color: #000;
    transform: translateY(-2px) scale(1.02);
}

.open-btn:active {
    transform: scale(0.96);
    box-shadow: 0 2px 6px rgba(74, 222, 128, 0.3);
}

@media (prefers-color-scheme: dark) {
    .open-btn {
        box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    }
}

.card-main-info {
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.project-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-tags-row {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-color: var(--bg-tag);
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    color: var(--text-muted);
}