:root {
    --primary-color: #0d6efd;
    --light-bg: #f8f9fa;
    --light-bg-secondary: #ffffff;
    --light-bg-tertiary: #f1f3f5;
    --dark-text: #212529;
    --muted-text: #6c757d;
    --border-color: #dee2e6;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--light-bg);
    color: var(--dark-text);
    overflow-x: hidden;
}

.main-container {
    position: relative;
    z-index: 1;
}

.header-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 500px;
    z-index: -1;
    background: radial-gradient(circle at 50% 0%, rgba(13, 110, 253, 0.1), rgba(13, 110, 253, 0) 40%);
}


.container, .container-fluid {
    padding-left: 2rem;
    padding-right: 2rem;
}

/*--------------------------------------------------------------
# Header
--------------------------------------------------------------*/
.header {
    padding: 4rem 0;
}

.header .logo-container {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem auto;
    background: linear-gradient(145deg, rgba(13, 110, 253, 0.2), rgba(13, 110, 253, 0.5));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(13, 110, 253, 0.4);
}

.header .logo-container i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.header h1 {
    color: var(--dark-text);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}
.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}


/*--------------------------------------------------------------
# Upload Area
--------------------------------------------------------------*/
.upload-area {
    background-color: var(--light-bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-area.is-active {
    background-color: var(--light-bg-tertiary);
    border-color: var(--primary-color);
}

.upload-area-content {
    transition: opacity 0.3s ease;
}

.upload-area .upload-icon {
    font-size: 5rem;
    color: var(--primary-color);
}

.upload-area .upload-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 1.5rem;
    color: var(--dark-text);
}

.upload-area .upload-text {
    color: var(--muted-text);
    margin-bottom: 1rem;
}

.upload-area .upload-subtext {
    font-size: 0.9rem;
    color: var(--muted-text);
    margin-top: 1rem;
}

.file-list-container {
    animation: fadeIn 0.5s;
}

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

.file-list-title {
    color: var(--dark-text);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

#file-list .list-group-item {
    background-color: var(--light-bg-tertiary);
    border-color: var(--border-color);
    color: var(--dark-text);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#file-list .list-group-item .file-name {
    flex-grow: 1;
}

#file-list .list-group-item .file-size {
    font-size: 0.8rem;
    color: var(--muted-text);
    margin-left: 1rem;
}


/*--------------------------------------------------------------
# Results & Table
--------------------------------------------------------------*/
.results-title {
    color: var(--dark-text);
    font-weight: 700;
}

#tableSearch {
    background-color: var(--light-bg-secondary);
    border-color: var(--border-color);
    color: var(--dark-text);
}
#tableSearch:focus {
    background-color: var(--light-bg-secondary);
    border-color: var(--primary-color);
    color: var(--dark-text);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.table-container {
    background-color: var(--light-bg-secondary);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
}

.table-custom {
    border-collapse: collapse;
    width: 100%;
}

.table-custom thead th {
    background-color: var(--light-bg-tertiary);
    color: var(--dark-text);
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 800;
    font-size: 0.9rem;
    padding: 1rem 1.25rem;
    border-bottom: 2px solid var(--border-color);
}

.table-custom tbody tr {
    transition: background-color 0.2s ease;
}

.table-custom tbody tr:nth-of-type(odd) {
    background-color: rgba(0,0,0,0.02);
}

.table-hover-custom tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.1) !important;
}

.table-custom td, .table-custom th {
    padding: 1rem 1.25rem;
    vertical-align: middle;
    border: none;
    border-bottom: 1px solid var(--border-color);
}
.table-custom tbody tr:last-of-type td {
    border-bottom: none;
}


.badge.bg-secondary-subtle {
    background-color: #e0e0e0 !important;
    color: var(--muted-text) !important;
    font-weight: 500;
    border: 1px solid #ced4da;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffeeba;
    color: #664d00;
}

/*--------------------------------------------------------------
# Modal
--------------------------------------------------------------*/
.modal-content {
    background-color: var(--light-bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
}
.modal-header {
    border-bottom: 1px solid var(--border-color);
}
.modal-body pre {
    background-color: var(--light-bg-tertiary);
    color: var(--dark-text);
    padding: 1.5rem;
    border-radius: 0.5rem;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
}

#goToTopBtn {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 30px;
    z-index: 99;
    border: none;
    outline: none;
    background-color: var(--primary-color);
    color: white;
    cursor: pointer;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 24px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    transition: opacity 0.3s, visibility 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

#goToTopBtn:hover {
    background-color: #0b5ed7;
}

.floating-download-btn {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    /*box-shadow: 0 4px 8px rgba(0,0,0,0.2);*/
}
.floating-download-btn .btn {
    border-radius: 50px;
    padding: 10px 20px;
}
.dropdown-menu {
    background-color: var(--light-bg-secondary);
    border: 1px solid var(--border-color);
}
.dropdown-item {
    color: var(--dark-text);
}

.dropdown-item:hover {
    background-color: var(--light-bg-tertiary);
    color: var(--dark-text);
}