:root {
    --primary-color: #4a90e2;
    --success-color: #27ae60;
    --warning-color: #f1c40f;
    --error-color: #e74c3c;
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
    --background-color: #f5f7fa;
    --card-background: #ffffff;
    --border-radius: 12px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background-color: var(--background-color);
    color: var(--text-color);
    min-height: 100vh;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: linear-gradient(135deg, 
        rgba(74, 144, 226, 0.05) 0%,
        rgba(39, 174, 96, 0.05) 100%
    );
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* Header Styles */
.app-header {
    background-color: var(--card-background);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

h1 {
    font-size: 1.8rem;
    color: var(--text-color);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Upload Section */
.upload-section {
    margin-bottom: 2rem;
}

.upload-area {
    background-color: var(--card-background);
    border: 2px dashed var(--primary-color);
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(74, 144, 226, 0.05);
}

.upload-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-area p {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.upload-divider {
    display: block;
    color: var(--text-light);
    margin: 1rem 0;
    position: relative;
}

.upload-divider::before,
.upload-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background-color: #e0e0e0;
}

.upload-divider::before {
    left: 0;
}

.upload-divider::after {
    right: 0;
}

#fileInput {
    display: none;
}

/* Buttons */
.upload-button,
.process-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    text-decoration: none;
}

.upload-button:hover,
.process-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.process-button {
    width: 100%;
    justify-content: center;
    background-color: var(--success-color);
    margin-top: 1rem;
}

/* Files Section */
.files-section {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    width: 100%;
}

.pending-files,
.completed-files {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    width: 100%;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.section-header i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.files-container {
    max-height: 400px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.files-container::-webkit-scrollbar {
    width: 6px;
}

.files-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.files-container::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 10px;
}

.file-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.file-item:hover {
    transform: translateX(5px);
    background-color: #f1f4f7;
}

.file-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 1rem;
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: 500;
    margin-bottom: 0.2rem;
}

.file-size {
    font-size: 0.8rem;
    color: var(--text-light);
}

.file-status {
    font-size: 0.85rem;
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
    margin-left: 1rem;
    white-space: nowrap;
}

.status-pending {
    background-color: var(--warning-color);
    color: #fff;
}

.status-processing {
    background-color: var(--primary-color);
    color: #fff;
}

.status-completed {
    background-color: var(--success-color);
    color: #fff;
}

.status-error {
    background-color: var(--error-color);
    color: #fff;
}

.download-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.download-link:hover {
    background-color: rgba(74, 144, 226, 0.1);
}

/* Progress Overlay */
.progress-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

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

.progress-card {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 2rem;
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow);
}

.progress-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.progress-header i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.progress-bar-container {
    position: relative;
    margin-bottom: 1rem;
}

.progress-bar {
    height: 8px;
    background-color: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    width: 0%;
    transition: width 0.3s ease;
}

.progress-percentage {
    position: absolute;
    right: 0;
    top: -1.5rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.status-text {
    text-align: center;
    color: var(--text-light);
}

/* Footer */
.app-footer {
    background-color: var(--card-background);
    padding: 1rem;
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
    margin-top: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.security-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.security-info i {
    color: var(--success-color);
}

.developer-info {
    font-size: 0.95rem;
}

.developer-info a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.developer-info a:hover {
    color: #357abd;
    text-decoration: underline;
}

/* Responsividade do Footer */
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
    }

    .security-info {
        justify-content: center;
    }
}

/* Notificações */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem;
    border-radius: var(--border-radius);
    background-color: var(--card-background);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transform: translateX(120%);
    transition: transform 0.3s ease;
    z-index: 1100;
}

.notification.show {
    transform: translateX(0);
}

.notification i {
    font-size: 1.2rem;
}

.notification-success {
    border-left: 4px solid var(--success-color);
}

.notification-success i {
    color: var(--success-color);
}

.notification-error {
    border-left: 4px solid var(--error-color);
}

.notification-error i {
    color: var(--error-color);
}

.notification-info {
    border-left: 4px solid var(--primary-color);
}

.notification-info i {
    color: var(--primary-color);
}

/* Botão de remover arquivo */
.remove-file {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    margin-left: 0.5rem;
}

.remove-file:hover {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--error-color);
}

/* Animações */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.fa-spin {
    animation: spin 1s linear infinite;
}

/* Melhorias no layout de arquivos */
.file-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.file-size {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* Progress Overlay */
.progress-overlay {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s;
}

.progress-overlay.active {
    opacity: 1;
    visibility: visible;
}

.progress-card {
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.progress-overlay.active .progress-card {
    transform: translateY(0);
}

/* Hover Effects */
.file-item {
    position: relative;
    overflow: hidden;
}

.file-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--primary-color);
    opacity: 0;
    transition: var(--transition);
    z-index: 0;
}

.file-item:hover::before {
    opacity: 0.05;
}

.file-item > * {
    position: relative;
    z-index: 1;
}

/* Responsividade adicional */
@media (max-width: 480px) {
    .notification {
        width: calc(100% - 40px);
        top: auto;
        bottom: 20px;
    }

    .file-size {
        font-size: 0.75rem;
    }

    .progress-card {
        width: 95%;
    }
}

/* Estilo para cards de arquivos processados */
.completed-file-item {
    background-color: var(--card-background);
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1.2rem !important;
    transition: var(--transition);
}

.completed-file-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.file-content {
    width: 100%;
}

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

.file-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.file-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.7rem;
    border-radius: 16px;
    font-size: 0.8rem;
    background-color: var(--background-color);
    color: var(--text-color);
    border: 1px solid rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.file-badge i {
    font-size: 0.8rem;
    opacity: 0.8;
}

.file-badge.reduction {
    background-color: rgba(39, 174, 96, 0.1);
    color: var(--success-color);
    border-color: rgba(39, 174, 96, 0.2);
}

.file-badge.increase {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--error-color);
    border-color: rgba(231, 76, 60, 0.2);
}

.file-actions {
    display: flex;
    justify-content: flex-end;
    padding-top: 1rem;
}

.download-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.download-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.2);
    background-color: #357abd;
}

.download-button i {
    font-size: 1.2rem;
}

.download-button .button-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
}

.download-button span {
    font-weight: 500;
}

.download-button small {
    font-size: 0.75rem;
    opacity: 0.9;
}

/* Responsividade para os novos elementos */
@media (max-width: 768px) {
    .file-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .file-badges {
        justify-content: center;
    }

    .file-actions {
        justify-content: center;
    }

    .download-button {
        width: auto;
        min-width: 200px;
        max-width: 100%;
        justify-content: center;
    }
}

/* Hover effects para badges */
.file-badge:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.file-badge.reduction:hover {
    background-color: rgba(39, 174, 96, 0.15);
}

.file-badge.increase:hover {
    background-color: rgba(231, 76, 60, 0.15);
}