:root {
    --primary-bg-color: #0a0f24;
    --secondary-bg-color: #1a1f38;
    --accent-color: #00c853;
    --error-color: #d50000;
    --warning-color: #ff9100;
    --button-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
    --text-color: white;
    --input-bg-color: #fff;
    --input-text-color: #333;
}

body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, var(--primary-bg-color), var(--secondary-bg-color));
    color: var(--text-color);
    text-align: center;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
    text-align: center;
}

h1 {
    margin-bottom: 20px;
    font-size: 24px;
}

form {
    margin: 15px 0;
}

input[type="file"],
input[type="text"],
input[type="password"] {
    padding: 8px;
    border-radius: 5px;
    border: none;
    width: 100%;
    margin-bottom: 10px;
    background-color: var(--input-bg-color);
    color: var(--input-text-color);
}

button {
    font-size: 16px;
    font-weight: bold;
    padding: 12px 25px;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    transition: 0.3s ease;
    box-shadow: var(--button-shadow);
    margin: 10px;
    display: inline-block;
}

button:hover {
    transform: scale(1.1);
}

button[name="start_campaign"] {
    background-color: var(--accent-color);
    color: var(--text-color);
}

button[name="stop_campaign"] {
    background-color: var(--error-color);
    color: var(--text-color);
}

button[name="toggle_pause_campaign"] {
    background-color: var(--warning-color);
    color: var(--text-color);
}

button.continuar {
    background-color: var(--accent-color) !important;
}

button.voltar {
    font-size: 16px;
    font-weight: bold;
    padding: 12px 25px;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    transition: 0.3s ease;
    box-shadow: var(--button-shadow);
    margin: 10px;
    display: inline-block;
    background-color: #0b2096;
    color: var(--text-color);
}

button.voltar:hover {
    transform: scale(1.1);
}

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.8);
    color: var(--text-color);
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.5s ease-in-out;
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

#notification-box {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: var(--accent-color);
    color: var(--text-color);
    padding: 15px;
    border-radius: 5px;
    display: none;
    box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
}

.hidden {
    display: none;
}




.freq_option {
    justify-content: center;
    width: 100%;
    padding: 4px;
    font-size: 16px;
    border: 2px solid #4CAF50;
    border-radius: 5px;
    background-color: #fff;
    color: #333;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
}

/* Quando o usuário passa o mouse */
.freq_option:hover {
    border-color: #45a049;
}

/* Quando o select está focado */
.freq_option:focus {
    outline: none;
    border-color: #2e7d32;
    box-shadow: 0 0 5px rgba(46, 125, 50, 0.5);
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-size: 16px;
}

.btn:hover {
    background-color: #0056b3;
}


.header {
    text-align: center;
    margin-bottom: 20px;
}
.header img {
    max-width: 200px;
    height: auto;
}