:root {
    --primary: #0a192f;
    --secondary: #64ffda;
    --accent: #ff6b6b;
    --success: #4CAF50;
    --light: #ccd6f6;
    --dark: #020c1b;
    --gray: #8892b0;
    --card-bg: rgba(10, 25, 47, 0.85);
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --border-radius: 12px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--dark);
    color: var(--light);
    overflow-x: hidden;
    line-height: 1.6;
}

h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
    background: linear-gradient(90deg, var(--secondary), var(--light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--secondary);
}

h3 {
    font-size: 1.8rem;
    color: var(--light);
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1.5rem;
    color: var(--gray);
    font-size: 1.1rem;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

section {
    padding: 100px 0;
    position: relative;
}

.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background-color: transparent;
    color: var(--secondary);
    border: 2px solid var(--secondary);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(100, 255, 218, 0.2), transparent);
    transition: 0.5s;
    z-index: -1;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(100, 255, 218, 0.2);
}

.btn-secondary {
    background-color: var(--accent);
    color: white;
}

.btn-secondary:hover {
    background-color: #ff5252;
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(255, 107, 107, 0.3);
}

/* Hero Section para biblioteca.html */
#hero {
    background: linear-gradient(135deg, rgba(10, 25, 47, 0.95) 0%, rgba(2, 12, 27, 0.9) 100%);
    min-height: 70vh;
    display: flex;
    align-items: center;
    position: relative;
    margin-top: 80px;
}

.hero-content {
    max-width: 800px;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--gray);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-top: 3rem;
}

/* Projects Grid */
.projects-section {
    background-color: var(--dark);
    padding: 80px 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.project-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(100, 255, 218, 0.1);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: var(--secondary);
}

.project-image {
    height: 200px;
    overflow: hidden;
    position: relative;
    background-color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-web {
    background-color: #2196F3;
    color: white;
}

.project-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--light);
}

.project-description {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tech-tag {
    background-color: rgba(100, 255, 218, 0.1);
    color: var(--secondary);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    color: var(--gray);
    font-size: 0.8rem;
    margin-top: 10px;
    margin-bottom: 15px;
}

.project-links {
    display: flex;
    gap: 10px;
    margin-top: auto;
}

.project-link {
    flex: 1;
    text-align: center;
    padding: 10px;
    background-color: transparent;
    border: 1px solid var(--secondary);
    color: var(--secondary);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
}

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

/* Filters */
.filters-section {
    background-color: var(--primary);
    padding: 40px 0;
}

.filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
}

.filter-btn {
    padding: 10px 25px;
    background-color: rgba(100, 255, 218, 0.1);
    color: var(--light);
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.filter-btn:hover {
    background-color: rgba(100, 255, 218, 0.2);
    transform: translateY(-2px);
}

.filter-btn.active {
    background-color: var(--secondary);
    color: var(--primary);
}

.search-box {
    max-width: 500px;
    margin: 0 auto;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 15px 50px 15px 20px;
    background-color: rgba(100, 255, 218, 0.1);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: var(--border-radius);
    color: var(--light);
    font-size: 1rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 2px rgba(100, 255, 218, 0.1);
}

.search-box i {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary);
    font-size: 1.2rem;
}

/* Contact Section para biblioteca.html */
.contact-section {
    background-color: var(--primary);
    padding: 80px 0;
    text-align: center;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--primary);
    width: 90%;
    max-width: 1000px;
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(100, 255, 218, 0.2);
    max-height: 90vh;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--accent);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    z-index: 10;
    transition: var(--transition);
}

.modal-close:hover {
    transform: rotate(90deg);
}

.modal-body {
    padding: 40px;
    overflow-y: auto;
    max-height: calc(90vh - 80px);
}

.modal-header {
    margin-bottom: 30px;
}

.modal-title {
    font-size: 2rem;
    margin-bottom: 10px;
}

.modal-subtitle {
    color: var(--gray);
    font-size: 1.1rem;
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.modal-images {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.modal-main-image {
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 300px;
    background-color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-main-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.modal-thumbnails {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 10px;
}

.modal-thumbnail {
    width: 80px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    opacity: 0.7;
    transition: var(--transition);
    background-color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-thumbnail:hover,
.modal-thumbnail.active {
    opacity: 1;
    border: 2px solid var(--secondary);
}

.modal-thumbnail img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.modal-info h3 {
    margin-top: 20px;
    margin-bottom: 15px;
}

.modal-specs {
    list-style: none;
    margin-bottom: 30px;
}

.modal-specs li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(100, 255, 218, 0.1);
    color: var(--gray);
    display: flex;
    justify-content: space-between;
}

.modal-specs li span:first-child {
    color: var(--light);
    font-weight: 600;
}

.modal-details {
    margin-bottom: 30px;
}

.modal-details p {
    color: var(--light);
}

.modal-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* Admin Notice */
.admin-notice {
    background-color: rgba(255, 107, 107, 0.1);
    border: 1px solid var(--accent);
    border-radius: var(--border-radius);
    padding: 15px;
    margin: 20px 0;
    text-align: center;
}

.admin-notice p {
    color: var(--light);
    margin-bottom: 0;
}

/* Scroll Navigation */
.scroll-nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(100, 255, 218, 0.3);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.nav-dot:hover {
    background-color: var(--secondary);
    transform: scale(1.3);
}

.nav-dot.active {
    background-color: var(--secondary);
}

.nav-dot::after {
    content: attr(data-tooltip);
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--primary);
    color: var(--light);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    border: 1px solid var(--secondary);
}

.nav-dot:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Loading State */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--gray);
}

.loading-spinner {
    border: 3px solid rgba(100, 255, 218, 0.3);
    border-top: 3px solid var(--secondary);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 1200px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    h1 {
        font-size: 2.8rem;
    }

    h2 {
        font-size: 2.2rem;
    }

    .hero-content h1 {
        font-size: 3.2rem;
    }
}

@media (max-width: 768px) {
    section {
        padding: 80px 0;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .filters {
        flex-direction: column;
        align-items: center;
    }

    .project-links {
        flex-direction: column;
    }

    .modal-body {
        padding: 20px;
    }

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

    .scroll-nav {
        display: none;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }
}