:root {
    --brand-color: #4f84bb;
    --brand-hover: #0e4d91;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --error-color: #ba1100;
    --success-color: #2ecc71;
}

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

body {
    background: linear-gradient(135deg, #4f84bb 0%, #3d6a99 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.signup-container {
    width: 100%;
    max-width: 420px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 32px 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Progress Steps */
.progress-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    position: relative;
}

.progress-steps::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 0;
    right: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 0;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    position: relative;
    z-index: 1;
    flex: 1;
}

.step-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.step.active .step-circle {
    background: var(--brand-color);
    border-color: var(--brand-color);
    color: white;
    box-shadow: 0 0 0 4px rgba(79, 132, 187, 0.2);
}

.step.completed .step-circle {
    background: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.step-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    text-align: center;
}

.step.active .step-label {
    color: white;
    font-weight: 600;
}

/* Form */
.signup-header {
    text-align: center;
    margin-bottom: 32px;
}

.signup-header h1 {
    color: white;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.signup-header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    color: white;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    color: white;
    font-size: 16px;
    
    transition: all 0.3s ease;
    direction: ltr;
    text-align: left;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--brand-color);
    box-shadow: 0 0 0 3px rgba(79, 132, 187, 0.2);
}

.form-group input.error {
    border-color: var(--error-color);
}

.error-message {
    color: var(--error-color);
    font-size: 13px;
    margin-top: 6px;
    display: none;
}

.error-message.show {
    display: block;
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--brand-color);
    border: 1px var(--brand-hover) solid;
    color: white;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    
}

.btn-submit:hover {
    background: var(--brand-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 132, 187, 0.4);
}

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

.btn-submit:disabled {
    background: rgba(255, 255, 255, 0.2);
    cursor: not-allowed;
    transform: none;
}

.login-link {
    text-align: center;
    margin-top: 24px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.login-link a {
    color: white;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s ease;
}

.login-link a:hover {
    color: var(--brand-hover);
}

/* Responsive */
@media (max-width: 480px) {
    .signup-container {
        padding: 24px 20px;
        border-radius: 20px;
    }

    .step-label {
        font-size: 11px;
    }

    .step-circle {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
}