:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --dark-bg: #0f172a;
    --card-bg: #1e293b;
    --border-color: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --success-color: #10b981;
    --warning-color: #f59e0b;
}
/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeInOverlay 0.3s ease;
}

.modal-overlay.active {
    display: flex;
}

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

/* Modal Container */
.modal-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
    position: relative;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Scrollbar Styling */
.modal-container::-webkit-scrollbar {
    width: 8px;
}

.modal-container::-webkit-scrollbar-track {
    background: rgba(99, 102, 241, 0.1);
}

.modal-container::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

.modal-container::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Modal Header */
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1001;
}

.modal-header-left {
    flex: 1;
}

.modal-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.modal-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 0.8rem;
}

.modal-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-meta-item i {
    color: var(--primary-color);
    font-size: 1rem;
}

.modal-meta-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.modal-meta-value {
    color: var(--text-primary);
    font-weight: 600;
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.modal-close-btn:hover {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary-color);
}

/* Modal Body */
.modal-body {
    padding: 2rem;
}

/* Modal Sections */
.modal-section {
    margin-bottom: 3rem;
}

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

.section-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.8rem;
    border-bottom: 2px solid var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.section-title i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* Overview Section */
.overview-text {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.overview-item {
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.2rem;
}

.overview-label {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.overview-value {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

/* Stats Section */
.modal-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.12);
    transform: translateY(-3px);
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Tech Stack Section */
.tech-stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.tech-category {
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.2rem;
    transition: all 0.3s ease;
}

.tech-category:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.12);
}

.tech-category-title {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.tech-category-title i {
    font-size: 1.1rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.tech-tag {
    display: inline-block;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tech-tag:hover {
    background: rgba(99, 102, 241, 0.3);
    border-color: var(--primary-color);
}

/* Architecture Section */
.arch-layers {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.arch-layer {
    background: rgba(99, 102, 241, 0.08);
    border-left: 3px solid var(--primary-color);
    border-radius: 4px;
    padding: 1.2rem;
    transition: all 0.3s ease;
}

.arch-layer:hover {
    background: rgba(99, 102, 241, 0.12);
    border-left-color: var(--accent-color);
    transform: translateX(5px);
}

.arch-layer-title {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.arch-layer-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.proj-layers {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.proj-layer {
    display: flex;
    gap: 1rem;
    align-items: center;

    background: rgba(99, 102, 241, 0.08);
    border-left: 3px solid var(--primary-color);
    border-radius: 6px;
    padding: 1rem;
    transition: all 0.3s ease;
}

.proj-thumb {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    overflow: hidden;
    border-radius: 4px;
    cursor: pointer;
}

.proj-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.3s;
}

.proj-thumb img:hover {
    transform: scale(1.05);
}

.proj-info {
    flex: 1;
}

.proj-layer img:hover {
    transform: scale(1.05);
}

.proj-layer {
    flex: 1;
}
.proj-layer:hover {
    background: rgba(99, 102, 241, 0.12);
    border-left-color: var(--accent-color);
    transform: translateX(5px);
}

.proj-layer-title {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.proj-layer-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}


/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

/* My Role Section */
.roles-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.role-card {
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.role-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.role-card:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.12);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.15);
}

.role-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.role-icon {
    width: 50px;
    height: 50px;
    background: rgba(99, 102, 241, 0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.role-title {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.role-duration {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.role-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

.role-responsibility {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.6rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.5;
    text-align: start;
}

.role-responsibility::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

.role-badge {
    display: inline-block;
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 1rem;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.feature-item {
    display: flex;
    gap: 1rem;
    padding: 1.2rem;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.12);
    transform: translateY(-3px);
}

.feature-icon {
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    min-width: 50px;
}

.feature-content {
    flex: 1;
}

.feature-title {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
    font-size: 1rem;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Timeline Section */
.timeline {
    position: relative;
    padding: 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    margin-bottom: 2rem;
    padding-left: 3rem;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 30px;
    height: 30px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-title {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 0.4rem;
}

.timeline-date {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.timeline-date i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.timeline-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Footer Section */
.modal-footer {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
    .modal-container {
        max-width: 95%;
    }

    .modal-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .modal-header-left {
        width: 100%;
    }

    .modal-title {
        font-size: 1.3rem;
    }

    .modal-meta {
        gap: 1rem;
    }

    .modal-body {
        padding: 1.5rem;
    }

    .modal-footer {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .tech-stack-grid,
    .modal-stats,
    .overview-grid,
    .features-grid,
    .roles-container {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 1.1rem;
    }

    .role-card {
        padding: 1.2rem;
    }

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

/* Badge Styles */
.badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-info {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-color);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

/* Divider */
.divider {
    height: 1px;
    background: var(--border-color);
    margin: 1.5rem 0;
}

/* Empty State */
.empty-section {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.empty-section i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-section p {
    margin: 0;
    font-size: 1rem;
}

.img-modal {
    display: none;
    position: fixed;
    z-index: 99999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;

    background: rgba(0,0,0,0.9);

    overflow-y: auto; /* 🔥 cho scroll dọc */
    padding: 40px 0;
}

.img-modal img {
    display: block;
    margin: 0 auto;
    max-width: 90%;
    height: auto; /* 🔥 bỏ giới hạn height */
}

.img-modal .close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #fff;
    font-size: 30px;
    cursor: pointer;
}