:root {
    --primary-color: #0056b3;
    --primary-hover: #004494;
    --success-color: #28a745;
    --success-hover: #218838;
    --danger-color: #dc3545;
    --danger-hover: #c82333;
    --bg-start: #f0f2f5;
    --bg-end: #dde1e7;
    --container-bg: #ffffff;
    --text-main: #333333;
    --text-muted: #6c757d;
    --border-color: #e0e0e0;
    --transition-speed: 0.2s;
}

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

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    flex-direction: column; /* NOVA LINHA: Garante que o contentor e o rodapé ficam empilhados */
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-start) 0%, var(--bg-end) 100%);
    padding: 20px;
}

.container {
    background: var(--container-bg);
    padding: 2rem 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.06);
    width: 100%;
    max-width: 580px;
    text-align: center;
}

/* --- REGRAS DO CABEÇALHO --- */
.header {
    display: flex;
    justify-content: center; 
    align-items: center; 
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f0f0f0;
    position: relative; 
}

.header-text-block {
    text-align: center; 
    margin-right: 100px; 
}

.header-text-block h2 {
    color: var(--primary-color);
    margin-bottom: 5px;
    font-size: 28px; 
    font-weight: 700;
    letter-spacing: -0.5px;
}

.header-text-block p {
    color: var(--text-muted);
    font-size: 14px; 
    font-weight: 500;
}

/* CONTAINER DA LOGO */
.logo-container {
    width: 80px; 
    height: 80px; 
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute; 
    right: 10px; 
    top: calc(50% - 40px); 
}

.company-logo {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Área de Upload */
.upload-area {
    margin-bottom: 25px;
}

#pdfInput {
    display: none;
}

.upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background-color: #fbfcfd;
    border: 2px dashed #d0d7de;
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

.upload-label:hover {
    border-color: var(--primary-color);
    background-color: #eef5ff;
    box-shadow: 0 4px 12px rgba(0,86,179,0.05);
}

.upload-icon {
    color: var(--primary-color);
    margin-bottom: 15px;
    opacity: 0.8;
}

.upload-text {
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
    font-size: 16px;
}

.upload-hint {
    font-size: 13px;
    color: var(--text-muted);
}

/* Lista de arquivos selecionados */
.file-list {
    margin-top: 15px;
    font-size: 13px;
    color: var(--text-muted);
    text-align: left;
    max-height: 120px;
    overflow-y: auto;
    padding-right: 5px;
}

.file-list::-webkit-scrollbar {
    width: 4px;
}
.file-list::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}
.file-list::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 10px;
}

.file-list p {
    margin-bottom: 6px;
    padding: 8px 12px;
    background: #f3f5f7;
    border-radius: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* GRUPO DE BOTÕES */
.button-group {
    display: flex;
    gap: 15px;
    width: 100%;
}

button {
    flex: 1;
    background: var(--success-color);
    color: white;
    border: none;
    padding: 16px 10px;
    cursor: pointer;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.5px;
    transition: background var(--transition-speed), transform 0.1s, box-shadow var(--transition-speed);
    box-shadow: 0 5px 15px rgba(40, 167, 69, 0.15);
}

button:hover {
    background: var(--success-hover);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.25);
}

button:active {
    transform: scale(0.98);
}

/* Botão Específico PDF */
.btn-pdf {
    background: var(--danger-color);
    box-shadow: 0 5px 15px rgba(220, 53, 69, 0.15);
}

.btn-pdf:hover {
    background: var(--danger-hover);
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.25);
}

#status {
    margin-top: 25px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    min-height: 20px;
}

/* --- REGRAS DO NOVO RODAPÉ --- */
.system-footer {
    margin-top: 30px;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.6;
    font-weight: 500;
    opacity: 0.85;
    transition: opacity var(--transition-speed);
}

.system-footer:hover {
    opacity: 1;
}

.system-footer strong {
    color: var(--primary-color);
    font-weight: 600;
}