/* --- Configurações Globais e Tema --- */
* { 
    box-sizing: border-box; 
    margin: 0; 
    padding: 0; 
}

body { 
    font-family: 'Poppins', sans-serif; 
    background-color: #292D3E; 
    color: #A6ACCD; 
    min-height: 100vh; 
    padding: 30px; 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
}

/* --- Estrutura Principal --- */
.container { 
    max-width: 800px; 
    width: 100%; 
    background: #202334; 
    border-radius: 20px; 
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4); 
    padding: 40px; 
    margin-top: 20px; 
    text-align: center; 
    border: 1px solid #44475A;
}

h1 { color: #C792EA; }
h2 { color: #89DDFF; margin-bottom: 15px; }
.subtitle { color: #676E95; margin-bottom: 30px; }

/* --- Área de Upload --- */
.upload-area { 
    border: 3px dashed #82AAFF; 
    border-radius: 15px; 
    padding: 40px 20px; 
    margin: 20px 0; 
    background: #292D3E; 
    cursor: pointer; 
    transition: all 0.3s ease; 
}

.upload-area:hover { 
    background: #30354a; 
}

.upload-icon { 
    font-size: 4rem; 
    color: #82AAFF; 
    margin-bottom: 15px; 
}

/* Oculta o botão de upload padrão do navegador */
.file-input { 
    display: none; 
}

#size-limit-text {
    font-size: 0.8rem;
    color: #676E95;
    margin-top: -10px;
    margin-bottom: 10px;
}


/* --- Seções de Resultado (Preview, QR, Link) --- */
.preview-section, .result-section, .qr-section { 
    display: none; 
    margin-top: 30px; 
    background: #292D3E;
    padding: 20px;
    border-radius: 10px;
    border: 1px solid #44475A;
}

.preview-section { 
    flex-direction: column; 
    align-items: center; 
}

.preview-section img { 
    margin: 10px auto 0;
    max-width: 100%; 
    max-height: 300px; 
    border-radius: 10px; 
}

#filePreview {
    padding: 20px;
    border: 1px solid #44475A;
    border-radius: 8px;
    margin-top: 10px;
}

#filePreview span {
    font-size: 3rem;
}

#fileName {
    margin-top: 10px;
    color: #A6ACCD;
}

#qr { 
    background-color: white; 
    padding: 10px; 
    border-radius: 10px; 
}

#link a { 
    color: #89DDFF; 
    text-decoration: none; 
    word-break: break-all;
    font-weight: 600; 
}

#copyButton {
    padding: 10px 20px;
    margin-top: 15px;
    cursor: pointer;
    background-color: #82AAFF;
    color: #292D3E;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    transition: background-color 0.3s;
}


/* --- Componentes da UI (Loader, Status) --- */
.loader { 
    border: 4px solid #44475A; 
    border-top: 4px solid #C792EA; 
    border-radius: 50%; 
    width: 40px; 
    height: 40px; 
    animation: spin 1s linear infinite; 
    margin: 20px auto; 
    display: none; 
}

@keyframes spin { 
    0% { transform: rotate(0deg); } 
    100% { transform: rotate(360deg); } 
}

.status { 
    font-weight: 500; 
    margin: 15px 0; 
}

/* --- Rodapé --- */
footer { 
    margin-top: 40px; 
    padding: 20px; 
    color: #676E95; 
    font-size: 0.9rem; 
    text-align: center; 
    width: 100%; 
}