/* ============================================
   PROYECTOS — Cards, Modal, Slider, Detalles
   ============================================ */

.projects {
    background: var(--bg-alt);
    padding: 4rem 0;
}

/* ============================================
   VISTA COMPACTA - GRID DE CARDS
   ============================================ */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.project-card-compact {
    background: var(--bg-color);
    border: 3px solid var(--accent-color);
    padding: 2rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

.project-card-compact:hover {
    transform: translate(-3px, -3px);
    box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.15);
}

.compact-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    gap: 1rem;
}

.compact-title {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary-color);
    margin: 0;
    letter-spacing: -0.5px;
}

.compact-badge {
    padding: 0.4rem 1rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 2px solid;
    white-space: nowrap;
}

.compact-badge.academic {
    background: #e3f2fd;
    color: #1565c0;
    border-color: #1565c0;
}

.compact-badge.institutional {
    background: #f3e5f5;
    color: #6a1b9a;
    border-color: #6a1b9a;
}

.compact-badge.collaborative {
    background: #e8f5e9;
    color: #2e7d32;
    border-color: #2e7d32;
}

[data-theme="dark"] .compact-badge.academic {
    background: #0d47a1;
    color: #bbdefb;
}

[data-theme="dark"] .compact-badge.institutional {
    background: #4a148c;
    color: #e1bee7;
}

[data-theme="dark"] .compact-badge.collaborative {
    background: #1b5e20;
    color: #c8e6c9;
}

.compact-desc {
    font-size: 1.1rem;
    color: var(--text-color);
    margin: 0.5rem 0;
    font-weight: 600;
}

.compact-date {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0.5rem 0 1rem 0;
    font-style: italic;
}

.compact-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    min-height: 60px;
    align-content: flex-start;
}

.compact-tech span {
    background: var(--bg-alt);
    color: var(--text-color);
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px dashed var(--text-color);
}

.compact-expand-btn {
    width: 100%;
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    margin-top: auto;
    padding: 0.9rem;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.compact-expand-btn:hover {
    background: var(--primary-color);
    color: var(--secondary-color);
    transform: translateY(-2px);
}

/* ============================================
   MODAL / VISTA EXPANDIDA
   ============================================ */

.project-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

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

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: var(--bg-color);
    max-width: 1000px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 10000;
    border: 3px solid var(--accent-color);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.modal-content::-webkit-scrollbar {
    display: none;
}

.modal-close {
    position: sticky;
    top: 0;
    right: 0;
    float: right;
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    width: 50px;
    height: 50px;
    font-size: 2rem;
    cursor: pointer;
    z-index: 10001;
    transition: var(--transition);
    line-height: 1;
    font-weight: 300;
}

.modal-close:hover {
    background: var(--primary-color);
    color: var(--secondary-color);
    transform: rotate(90deg);
}

.modal-body {
    padding: 3rem;
}

.project-expanded {
    display: none;
}

.project-expanded.active {
    display: block;
    animation: slideIn 0.3s ease-out;
}

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

/* Expanded Header */
.expanded-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.expanded-title {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-color);
    margin: 0 0 0.3rem 0;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.expanded-subtitle {
    font-size: 1rem;
    color: var(--accent-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.expanded-date {
    font-size: 0.95rem;
    color: var(--text-color);
    margin: 0.5rem 0 0 0;
    font-weight: 600;
}

.project-status-badge {
    padding: 0.5rem 1.2rem;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid;
    white-space: nowrap;
}

.project-status-badge.academic {
    background: #e3f2fd;
    color: #1565c0;
    border-color: #1565c0;
}

.project-status-badge.institutional {
    background: #f3e5f5;
    color: #6a1b9a;
    border-color: #6a1b9a;
}

.project-status-badge.collaborative {
    background: #e8f5e9;
    color: #2e7d32;
    border-color: #2e7d32;
}

[data-theme="dark"] .project-status-badge.academic {
    background: #0d47a1;
    color: #bbdefb;
}

[data-theme="dark"] .project-status-badge.institutional {
    background: #4a148c;
    color: #e1bee7;
}

[data-theme="dark"] .project-status-badge.collaborative {
    background: #1b5e20;
    color: #c8e6c9;
}

.expanded-institution {
    background: var(--bg-alt);
    padding: 1rem 1.5rem;
    border-left: 4px solid var(--accent-color);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.95rem;
    color: var(--text-color);
    font-weight: 600;
    font-style: italic;
}

.institution-icon {
    font-size: 1.5rem;
}

/* ============================================
   MINI SLIDER DE IMÁGENES
   ============================================ */

.project-image-slider {
    position: relative;
    width: 100%;
    height: 400px;
    margin-bottom: 2rem;
    background: var(--bg-alt);
    border: 2px solid var(--text-light);
    overflow: hidden;
}

.image-slider-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.slider-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-image.active {
    opacity: 1;
    z-index: 1;
}

.slider-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: var(--bg-color);
}

.slider-image .placeholder-content {
    text-align: center;
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.placeholder-content p {
    font-size: 1.2rem;
    color: var(--text-color);
    font-weight: 700;
    margin: 0.5rem 0;
}

.placeholder-content small {
    font-size: 0.9rem;
    color: var(--text-light);
}

.image-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: 2px solid var(--accent-color);
    width: 45px;
    height: 45px;
    font-size: 1.8rem;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 300;
}

.image-nav-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
}

.image-nav-btn.prev {
    left: 10px;
}

.image-nav-btn.next {
    right: 10px;
}

.image-dots {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.image-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: 2px solid var(--accent-color);
    cursor: pointer;
    transition: var(--transition);
}

.image-dots .dot.active {
    background: var(--accent-color);
    transform: scale(1.2);
}

/* ============================================
   DETALLES Y TECNOLOGÍAS
   ============================================ */

.expanded-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.detail-block {
    padding: 1rem;
    background: var(--bg-alt);
    border-left: 3px solid var(--text-light);
    transition: var(--transition);
}

.detail-block:hover {
    border-left-color: var(--accent-color);
    background: var(--bg-color);
}

.detail-block.role {
    grid-column: 1 / -1;
    border-left-color: var(--accent-color);
    border-left-width: 4px;
    background: var(--bg-color);
}

.detail-block h4 {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--accent-color);
    margin: 0 0 0.8rem 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.detail-block p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-color);
    margin: 0;
}

.detail-block.role p {
    font-size: 1rem;
}

.detail-block strong {
    color: var(--text-color);
}

.expanded-tech {
    border-top: 2px solid var(--bg-alt);
    padding-top: 1.5rem;
}

.expanded-tech h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-color);
    margin: 0 0 1rem 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tech-tags span {
    background: transparent;
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border: 2px solid var(--text-color);
    font-size: 0.85rem;
    font-weight: 700;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tech-tags span:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

/* Projects responsive */
@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .modal-body {
        padding: 1.5rem;
    }

    .expanded-title {
        font-size: 1.5rem;
    }

    .expanded-subtitle {
        font-size: 0.9rem;
    }

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

    .project-image-slider {
        height: 300px;
    }

    .expanded-details {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .image-nav-btn {
        width: 35px;
        height: 35px;
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .compact-title {
        font-size: 1.4rem;
    }

    .modal-body {
        padding: 1rem;
    }

    .project-image-slider {
        height: 250px;
    }

    .modal-close {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

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