:root {
    --primary-color: #3a7bd5;
    --primary-dark: #478df3;
    --primary-light: #5a96f0;
    --success-color: #28a745;
    --error-color: #dc3545;
}

body {
    font-family: 'Dana', sans-serif;
    background: linear-gradient(135deg, #00d2ff, #3a7bd5);
    color: #fff;
    margin: 0;
    padding: 0;
    display: flex;
    height: 100vh;
    align-items: center;
    justify-content: center;
}
.auth-box {
    width: 100%;
    max-width: 400px;
    margin-left: 5px;
    margin-right: 5px;
    padding: 32px 24px;
    /*background-color: rgba(255, 255, 255, 0.15);
    border-radius: 15px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);*/
}
.logo {
    width: 200px;
    margin-bottom: 20px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}
.step { display: none; }
.step.active { display: block; }
.verify-box {
    display: flex;
    gap: 10px;
    justify-content: center;
    direction: ltr;
    margin: 20px 0;
}
.verify-box input {
    width: 50px;
    height: 60px;
    padding: 10px;
    font-size: 24px;
    text-align: center;
    border: 2px solid var(--primary-color);
    background-color: white;
    color: #333;
    border-radius: 10px;
    transition: all 0.3s;
}
.verify-box input:focus {
    border-color: var(--primary-dark);
    outline: none;
    box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.3);
}
#alertBox {
    display: none;
    margin-top: 10px;
    border: none;
    border-radius: 8px;
}
#alertBox.show {
    display: block;
    animation: fadeIn 0.3s ease;
}
#alertBox.success {
    background-color: rgba(40, 167, 69, 0.85);
}
#alertBox.error {
    background-color: rgba(220, 53, 69, 0.85);
}
@keyframes fadeIn {
    from {opacity: 0; transform: translateY(-5px);}
    to {opacity: 1; transform: translateY(0);}
}
.edit-number, .resend {
    font-size: 14px;
    margin-top: 10px;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.9);
    transition: all 0.2s;
}
.resend.active {
    color: #fff;
    text-decoration: underline;
    font-weight: 500;
}
.edit-number:hover, .resend:hover {
    opacity: 1;
    color: #fff;
}
.form-control {
    background-color: white;
    border: 2px solid var(--primary-color);
    color: #333;
    height: 50px;
    font-size: 18px;
    text-align: center;
}
.form-control:focus {
    box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.3);
    border-color: var(--primary-dark);
    color: #333;
}
input::placeholder {
    text-align: center;
    color: #999;
}
.btn {
    border-radius: 10px;
    font-weight: bold;
    height: 50px;
    font-size: 16px;
    background-color: white;
    color: var(--primary-dark);
    border: none;
    transition: all 0.3s;
}
.btn:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}
.title {
    margin-bottom: 20px;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.subtitle {
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
}
.edit-number {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    border-radius: 20px;
    background-color: rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}
.edit-number:hover {
    background-color: rgba(255, 255, 255, 0.2);
}