:root {
    --primary-flat: #2c3e50;
    --accent-flat: #3498db;
}

/* =========================================
   COMPONENTI GENERICI
   ========================================= */
.bg-primary {
    background-color: var(--primary-flat) !important;
}

.text-primary {
    color: var(--accent-flat) !important;
}

.btn-primary {
    background-color: var(--primary-flat) !important;
    border-color: var(--primary-flat) !important;
    border-radius: 4px;
    box-shadow: none !important;
    transition: background 0.2s ease;
}

.btn-primary:hover, .btn-primary:active {
    background-color: #1a252f !important;
}

.btn-outline-primary {
    color: var(--primary-flat);
    border-color: var(--primary-flat);
    border-radius: 4px;
    box-shadow: none !important;
    transition: background 0.2s ease;
}

.btn-outline-primary:hover, .btn-outline-primary:active {
    background-color: var(--primary-flat) !important;
    color: #fff !important;
    border-color: var(--primary-flat) !important;
}

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

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

.card {
    border-radius: 4px;
    border: 1px solid #ecf0f1;
}

.text-truncate-custom {
    max-width: 300px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* =========================================
   PAGINE DI AUTENTICAZIONE (Login, Reset)
   ========================================= */
.auth-page {
    background-color: #f4f6f9;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.login-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.omni-logo-text {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--primary-flat);
    margin-bottom: 0;
}

.input-group {
    border: 1px solid #dee2e6;
    border-radius: 0.375rem; 
    background-color: #fff;
    transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;
}

.input-group:focus-within {
    border-color: var(--accent-flat);
    box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25); 
}

.input-group-text {
    background-color: transparent;
    border: none;
    color: #6c757d;
}

.input-group .form-control {
    border: none;
    background-color: transparent;
}

.input-group .form-control:focus {
    box-shadow: none;
}

/* =========================================
   UPLOAD DROPZONE E LISTA FILE
   ========================================= */
.upload-dropzone {
    border: 2px dashed #cbd5e1;
    border-radius: 8px;
    background: #fff;
    padding: 60px 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
    position: relative;
}

.upload-dropzone:hover {
    border-color: var(--accent-flat);
    background: #f8fbff;
}

.upload-dropzone.dragover {
    border-color: var(--accent-flat);
    background: #eef6ff;
    transform: scale(1.01);
    box-shadow: 0 0 0 4px rgba(52, 152, 219, 0.12);
}

.upload-icon {
    font-size: 4rem;
    color: var(--accent-flat);
    margin-bottom: 20px;
}

.upload-dropzone h4 {
    font-weight: 700;
    color: var(--primary-flat);
}

.upload-types {
    font-size: 0.9rem;
    color: #6c757d;
    letter-spacing: 0.5px;
}

#fileList .list-group-item {
    border: none;
    padding-left: 0;
    padding-right: 0;
    background: transparent;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-icon {
    font-size: 1.5rem;
    color: var(--accent-flat);
}

.file-size {
    font-size: 0.85rem;
    color: #6c757d;
}