:root {
    --bg-card: rgba(40, 40, 55, 0.85);
    --border-subtle: rgba(255,255,255,0.08);
    --accent: #6c63ff;
    --accent-hover: #5a52e0;
}

body {
    background: linear-gradient(135deg, #0f0c29 0%, #1a1a2e 50%, #16213e 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

.card-glass {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-glass:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: 10px 24px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-accent:hover {
    background: linear-gradient(135deg, var(--accent-hover), #4a42c0);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(108,99,255,0.4);
}

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-card {
    width: 100%;
    max-width: 420px;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 0.2rem rgba(108,99,255,0.25);
}

.upload-zone {
    border: 2px dashed rgba(108,99,255,0.4);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--accent);
    background: rgba(108,99,255,0.05);
}

.upload-zone i {
    font-size: 3rem;
    color: var(--accent);
}

.mapping-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-subtle);
    transition: background 0.2s;
}

.mapping-row:hover {
    background: rgba(108,99,255,0.05);
}

.template-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-subtle);
    transition: background 0.2s;
}

.template-item:hover {
    background: rgba(108,99,255,0.05);
}

.logo-preview {
    max-width: 200px;
    max-height: 100px;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
}

.spinner-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    display: none;
}

.alert-validation {
    max-height: 300px;
    overflow-y: auto;
}

.fade-in {
    animation: fadeIn 0.4s ease-in;
}

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