:root {
    --wa-green: #25d366;
    --wa-green-dark: #128c7e;
    --wa-bg: #e8f5e9;
}

body.page-enviar {
    background: linear-gradient(160deg, var(--wa-bg) 0%, #f8f9fa 45%);
    min-height: 100vh;
}

.bg-whatsapp {
    background-color: var(--wa-green-dark) !important;
}

.navbar-brand,
.nav-link.active {
    color: #fff !important;
}

.card-enviar {
    border: none;
    border-radius: 1rem;
    overflow: hidden;
}

.card-enviar .card-header {
    background: var(--wa-green-dark);
    color: #fff;
    border: none;
    padding: 1.25rem 1.5rem;
}

.btn-whatsapp {
    background-color: var(--wa-green);
    border-color: var(--wa-green);
    color: #fff;
    font-weight: 600;
    padding: 0.75rem 1rem;
}

.btn-whatsapp:hover,
.btn-whatsapp:focus {
    background-color: #20bd5a;
    border-color: #20bd5a;
    color: #fff;
}

.btn-whatsapp:disabled {
    background-color: #9e9e9e;
    border-color: #9e9e9e;
}

.input-group-text-ddi {
    min-width: 5.5rem;
    font-weight: 600;
}

.hint-numero {
    font-size: 0.8rem;
}

#preview-numero {
    font-family: ui-monospace, monospace;
    font-size: 0.85rem;
}

body.dark-mode.page-enviar {
    background: linear-gradient(160deg, #1a2e1f 0%, #121212 45%);
    color: #e8e8e8;
}

body.dark-mode .card-enviar {
    background: #1e1e1e;
    color: #e8e8e8;
}

body.dark-mode .form-control,
body.dark-mode .form-select {
    background: #2a2a2a;
    border-color: #444;
    color: #fff;
}

body.dark-mode .text-muted {
    color: #aaa !important;
}