body {
    background-image: url('background.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 100vh;
    color: #f1faee;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 0;
    margin: 0;
    overflow-x: hidden;
}

/* Menu lateral */
.sidebar {
    position: fixed;
    top: 0;
    left: -250px;
    width: 250px;
    height: 100%;
    background: rgba(22, 22, 22, 0.95);
    border-right: 1px solid rgba(65, 65, 65, 0.534);
    z-index: 1000;
    transition: all 0.3s ease;
    overflow-y: auto;
}

.sidebar.open {
    left: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid rgba(65, 65, 65, 0.534);
}

.sidebar-logo {
    width: 40px;
    height: auto;
}

.sidebar-close {
    font-size: 1.8rem;
    cursor: pointer;
    color: #f1faee;
}

.sidebar-menu {
    padding: 1rem 0;
}

.sidebar-item {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: #f1faee;
    text-decoration: none;
    transition: all 0.3s ease;
}

.sidebar-item i {
    margin-right: 1rem;
}

.sidebar-item:hover, .sidebar-item.active {
    background: rgba(58, 134, 255, 0.2);
    color: #3a86ff;
    border-left: 4px solid #3a86ff;
}

/* Barra superior */
.topbar {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: rgba(22, 22, 22, 0);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    justify-content: space-between;
}

.menu-toggle {
    background: transparent;
    border: none;
    color: #f1faee;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    margin-right: 1rem;
}

.topbar-title {
    font-size: 2.2rem;
    font-weight: 600;
    background: linear-gradient(45deg, #ff9900, #1900ff);
    -webkit-background-clip: text;
    color: transparent;
}

.wallet-connect {
    margin-left: auto;
}

.connect-wallet-btn {
    background: linear-gradient(45deg, #3a86ff, #c400d6);
    color: rgb(218, 235, 255);
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.connect-wallet-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(58, 134, 255, 0.5);
}

.connect-wallet-btn i {
    font-size: 1rem;
}

.connect-wallet-btn.connected {
    background: linear-gradient(45deg, #38b000, #00826f);
}

/* Conteúdo principal */
.main-content {
    transition: all 0.3s ease;
    padding-top: 3.5rem;
}

.main-content.shifted {
    margin-left: 250px;
}

.container {
    max-width: 800px;
    margin: 4rem auto;
    padding: 2rem;
    background: rgba(29, 29, 29, 0.877);
    border: 1px solid rgba(65, 65, 65, 0.534);
    border-radius: 60px;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

.header-container {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 2rem;
    justify-content: center;
}

.logo {
    width: 80px;
    height: auto;
}

h1 {
    text-align: center;
    font-size: 2.5rem;
    background: linear-gradient(45deg, #331cff, #fb5607);
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: 0;
}

/* Botões de seleção BNB/Token */
.type-selector {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.type-button {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    color: #f1faee;
    border: 1px solid rgba(65, 65, 65, 0.534);
    padding: 1rem;
    border-radius: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    max-width: 200px;
}

.type-button.active {
    background: linear-gradient(45deg, #3a86ff, #8338ec);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(58, 134, 255, 0.4);
}

.type-button:hover:not(.active) {
    background: rgba(58, 134, 255, 0.2);
}

/* Formulário */
label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

input, textarea, select {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1.5rem;
    border: none;
    border-radius: 10px;
    background: #121212;
    color: #f1faee;
}

.fee-container {
    margin-bottom: 1.5rem;
}

.fee-value {
    background: #121212;
    padding: 0.75rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    font-weight: bold;
    color: #3a86ff;
}

.send-button {
    background: linear-gradient(45deg, #3a86ff, #8338ec);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.send-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(58, 134, 255, 0.6);
}

.result {
    margin-top: 2rem;
    padding: 1rem;
    background: rgba(0,0,0,0.3);
    border-radius: 10px;
}

/* Media queries para responsividade */
@media (max-width: 768px) {
    .container {
        margin: 4rem 1rem;
        padding: 1.5rem;
        border-radius: 30px;
    }

    h1 {
        font-size: 2rem;
    }

    .logo {
        width: 60px;
    }

    .main-content.shifted {
        margin-left: 0;
    }

    .sidebar.open {
        width: 250px;
        left: 0;
        box-shadow: 0 0 15px rgba(0,0,0,0.5);
    }
    
    .connect-wallet-btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.8rem;
    }
    
    .connect-wallet-btn span {
        max-width: 80px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .topbar-title {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
        border-radius: 20px;
    }

    .type-selector {
        flex-direction: column;
        align-items: center;
    }

    .type-button {
        width: 100%;
        max-width: 100%;
    }

    h1 {
        font-size: 1.8rem;
    }

    .header-container {
        flex-direction: column;
    }
}