/* Project Filter Buttons - Minimal Style */
.project-filter-btn {
    background-color: transparent;
    color: #6b7280;
    border: 1px solid #e5e7eb;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.project-filter-btn:hover {
    color: #1f2937;
    border-color: #9ca3af;
    background-color: #f9fafb;
}

.project-filter-btn.active {
    background-color: #1f2937;
    color: white;
    border-color: #1f2937;
}

/* Text-First Minimal Project Cards */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 0;
    min-height: 400px;
}

.project-card {
    position: relative;
    padding: 2rem 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: fadeInUp 0.4s ease-out;
}

.project-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--gradient-from), var(--gradient-to));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover::before,
.project-card.expanded::before {
    opacity: 1;
}

.project-card:hover {
    background-color: #f9fafb;
    padding-left: 2rem;
}

.project-card.expanded {
    background-color: #f9fafb;
    padding-left: 2rem;
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
}

/* Project Header */
.project-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.project-header-left {
    flex: 1;
    min-width: 0;
}

.project-category-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    opacity: 0.7;
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
    line-height: 1.3;
    transition: color 0.2s ease;
}

.project-card:hover .project-title {
    color: #374151;
}

.project-company {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 1rem;
}

.project-tech-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.project-tech-preview span {
    font-size: 0.75rem;
    color: #6b7280;
    padding: 0.25rem 0.75rem;
    background-color: #f3f4f6;
    border-radius: 9999px;
    border: 1px solid #e5e7eb;
    transition: all 0.2s ease;
}

.project-card:hover .project-tech-preview span {
    background-color: #e5e7eb;
    border-color: #d1d5db;
}

/* Expand Icon */
.project-expand-icon {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9ca3af;
    transition: all 0.3s ease;
}

.project-card:hover .project-expand-icon {
    color: #4b5563;
}

.project-card.expanded .project-expand-icon {
    transform: rotate(180deg);
    color: #1f2937;
}

/* Expanded Content */
.project-details {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding-top: 0;
}

.project-card.expanded .project-details {
    max-height: 1000px;
    opacity: 1;
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
}

.project-description {
    font-size: 1rem;
    line-height: 1.7;
    color: #374151;
    margin-bottom: 1.5rem;
}

.project-details-section {
    margin-bottom: 1.5rem;
}

.project-details-section:last-child {
    margin-bottom: 0;
}

.project-details-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6b7280;
    margin-bottom: 0.75rem;
}

.project-tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tech-badge {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    background-color: white;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    color: #1f2937;
    font-weight: 500;
}

.project-responsibilities {
    list-style: none;
    padding: 0;
    margin: 0;
}

.project-responsibilities li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f3f4f6;
}

.project-responsibilities li:last-child {
    border-bottom: none;
}

.project-responsibilities li i {
    flex-shrink: 0;
    color: #10b981;
    margin-top: 0.25rem;
}

.project-responsibilities li span {
    color: #4b5563;
    line-height: 1.6;
}

/* Modal - Enhanced for minimal design */
#projectModal {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    animation: fadeIn 0.2s ease-out;
}

#projectModal.hidden {
    display: none;
}

.modal-container {
    background: white;
    border-radius: 1rem;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

@keyframes modalSlideIn {
    from {
        transform: translateY(20px) scale(0.98);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close-btn {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 2.5rem;
    height: 2.5rem;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.2s ease;
}

.modal-close-btn:hover {
    background: #f9fafb;
    border-color: #d1d5db;
    transform: scale(1.05);
}

.modal-close-btn i {
    font-size: 1rem;
    color: #6b7280;
}

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

    .project-card {
        padding: 2.5rem 2rem;
    }

    .project-title {
        font-size: 1.875rem;
    }
}

@media (max-width: 768px) {
    .modal-container {
        max-height: 95vh;
        margin: 0.5rem;
        border-radius: 0.75rem;
    }

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

    .project-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Smooth scrollbar */
.modal-container::-webkit-scrollbar {
    width: 6px;
}

.modal-container::-webkit-scrollbar-track {
    background: transparent;
}

.modal-container::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 10px;
}

.modal-container::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}