:root {
    --port88-bg: #f2f4f8;
    --port88-surface: #ffffff;
    --port88-primary: #0b3c5d;
    --port88-primary-2: #166088;
    --port88-accent: #ff7a59;
    --port88-text: #172033;
    --port88-muted: #5f6b7a;
    --port88-border: #d6dde7;
    --port88-success: #0c8f5d;
    --port88-danger: #c83d2b;
}

body.port88_body {
    font-family: 'Barlow', sans-serif;
    background:
        radial-gradient(1200px 600px at -10% -10%, rgba(11, 60, 93, 0.12), transparent 60%),
        radial-gradient(900px 500px at 110% 5%, rgba(255, 122, 89, 0.12), transparent 60%),
        linear-gradient(180deg, #f8fafc 0%, var(--port88-bg) 100%);
    color: var(--port88-text);
    min-height: 100vh;
}

.port88_title {
    font-weight: 700;
    letter-spacing: 0.4px;
    color: var(--port88-primary);
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.7);
}

.port88_card {
    background: var(--port88-surface);
    border: 1px solid var(--port88-border);
    border-radius: 18px;
    box-shadow: 0 14px 30px rgba(9, 30, 66, 0.08);
    overflow: hidden;
}

.port88_card .card-header {
    border-bottom: 1px solid #edf1f6;
    background: linear-gradient(180deg, #ffffff 0%, #f9fbff 100%) !important;
}

.btn-primary {
    background: linear-gradient(135deg, var(--port88-primary), var(--port88-primary-2));
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #08324f, #114f72);
}

.btn-outline-primary {
    border-color: var(--port88-primary);
    color: var(--port88-primary);
}

.btn-outline-primary:hover {
    background: var(--port88-primary);
    border-color: var(--port88-primary);
}

.port88_dropzone {
    border: 2px dashed var(--port88_primary, #0b3c5d);
    border-color: var(--port88-primary);
    border-radius: 16px;
    padding: 28px;
    background: linear-gradient(180deg, rgba(11, 60, 93, 0.05), rgba(255, 122, 89, 0.08));
    transition: all 0.2s ease, box-shadow 0.2s ease;
}

.port88_dropzone p {
    margin: 0;
}

.port88_dropzone.port88_dragover {
    transform: translateY(-2px);
    border-color: var(--port88-accent);
    box-shadow: 0 10px 20px rgba(11, 60, 93, 0.12);
    background: linear-gradient(180deg, rgba(11, 60, 93, 0.1), rgba(255, 122, 89, 0.12));
}

.port88_dropzone_meta {
    color: var(--port88-muted);
    font-size: 0.92rem;
    margin-top: 10px;
}

.port88_file_list {
    margin-top: 12px;
    padding-left: 18px;
    color: var(--port88-muted);
}

.port88_file_list li {
    margin-bottom: 4px;
}

#port88_mensagens .port88_msg_sucesso {
    border-left: 4px solid var(--port88-success);
    background: #eaf9f1;
    padding: 10px 12px;
    border-radius: 8px;
    margin-bottom: 10px;
}

#port88_mensagens .port88_msg_erro {
    border-left: 4px solid var(--port88-danger);
    background: #fff1ee;
    padding: 10px 12px;
    border-radius: 8px;
    margin-bottom: 10px;
}

#port88_progress_bar {
    background: linear-gradient(90deg, var(--port88-primary), var(--port88-accent));
    font-weight: 600;
}

@media (max-width: 768px) {
    .port88_dropzone {
        padding: 20px;
    }
}