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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #ffffff;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
}

/* Header */
.header {
    text-align: center;
    padding: 20px 0 40px;
}

.logo {
    font-size: 48px;
    font-weight: 800;
    color: #E53E3E;
    text-transform: lowercase;
    letter-spacing: 2px;
}

/* Card Principal */
.card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 30px;
    color: #E53E3E;
}

/* Sections */
.section {
    background: rgba(0, 0, 0, 0.2);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.section h3 {
    font-size: 16px;
    font-weight: 600;
    color: #E53E3E;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Info Rows */
.info-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.info-row:last-child {
    border-bottom: none;
}

.label {
    font-size: 14px;
    color: #a0a0a0;
    font-weight: 500;
}

.value {
    font-size: 16px;
    color: #ffffff;
    font-weight: 600;
}

/* Valor Total */
.valor-section {
    background: linear-gradient(135deg, rgba(229, 62, 62, 0.2), rgba(229, 62, 62, 0.05));
    border: 2px solid #E53E3E;
}

.valor-total {
    font-size: 42px;
    font-weight: 800;
    color: #E53E3E;
    text-align: center;
    padding: 10px 0;
}

/* PIX Container */
.pix-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#codigoPIX {
    width: 100%;
    min-height: 120px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #ffffff;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    resize: vertical;
    line-height: 1.5;
}

#codigoPIX:focus {
    outline: none;
    border-color: #E53E3E;
    background: rgba(0, 0, 0, 0.4);
}

/* Botão Copiar */
.btn-copiar {
    width: 100%;
    padding: 18px;
    background: #E53E3E;
    color: #ffffff;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(229, 62, 62, 0.3);
}

.btn-copiar:hover {
    background: #C53030;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(229, 62, 62, 0.4);
}

.btn-copiar:active {
    transform: translateY(0);
}

.btn-copiar.sucesso {
    background: #38A169;
    box-shadow: 0 4px 15px rgba(56, 161, 105, 0.3);
}

/* Mensagens */
.mensagem {
    text-align: center;
    padding: 12px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mensagem.sucesso-msg {
    background: rgba(56, 161, 105, 0.2);
    color: #68D391;
    border: 1px solid rgba(56, 161, 105, 0.3);
    opacity: 1;
}

.mensagem.erro-msg {
    background: rgba(245, 101, 101, 0.2);
    color: #FC8181;
    border: 1px solid rgba(245, 101, 101, 0.3);
    opacity: 1;
}

/* Instruções */
.instrucoes {
    background: rgba(229, 62, 62, 0.05);
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid #E53E3E;
    margin-top: 20px;
}

.instrucoes p {
    color: #E53E3E;
    font-weight: 700;
    margin-bottom: 12px;
}

.instrucoes ol {
    color: #a0a0a0;
    padding-left: 20px;
}

.instrucoes li {
    margin-bottom: 8px;
    line-height: 1.6;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 0 20px;
    color: #666;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 480px) {
    .logo {
        font-size: 36px;
    }

    .title {
        font-size: 24px;
    }

    .card {
        padding: 20px;
    }

    .valor-total {
        font-size: 36px;
    }

    .btn-copiar {
        font-size: 16px;
        padding: 16px;
    }

    #codigoPIX {
        font-size: 11px;
        min-height: 100px;
    }
}