:root {
    --primary-color: #ff9800;
    --primary-dark: #e65100;
    --primary-light: #ffe0b2;
    --text-color: #333;
    --bg-color: #f5f5f5;
    --white: #fff;
    --error-btn-color: #999999;
    --error-btn-dark: #777777;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 600px;
    margin: 40px auto;
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    color: var(--primary-dark);
    margin-bottom: 30px;
}

/* Step Bar */
.step-bar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    padding: 0;
    list-style: none;
    position: relative;
}
.step-bar::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 0;
    right: 0;
    height: 3px;
    background: #ddd;
    z-index: 1;
}
.step-bar li {
    position: relative;
    z-index: 2;
    background: var(--bg-color);
    width: 30px;
    height: 30px;
    line-height: 30px;
    border-radius: 50%;
    text-align: center;
    font-weight: bold;
    color: #999;
    border: 3px solid #ddd;
}
.step-bar li.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}
.step-bar li.completed {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}
.step-bar-labels {
    display: flex;
    justify-content: space-between;
    margin-top: -30px;
    margin-bottom: 40px;
    font-size: 0.9em;
    color: #666;
}
.step-bar-labels span:first-child {
    text-align: left;
}
.step-bar-labels span:last-child {
    text-align: right;
}
.step-bar-labels span {
    width: 33%;
    text-align: center;
}
.step-bar-labels span.active {
    color: var(--primary-dark);
    font-weight: bold;
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}
label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: var(--primary-dark);
}
input[type="email"],
input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.3s;
}
input:focus {
    border-color: var(--primary-color);
    outline: none;
}
.btn {
    display: block;
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 4px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
    text-align: center;
    text-decoration: none;
}
.btn:hover {
    background: var(--primary-dark);
}
.error-btn {
    display: block;
    /* width: 100%; */
    padding: 12px;
    background: var(--error-btn-color);
    color: var(--white);
    border: none;
    border-radius: 4px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
    text-align: center;
    text-decoration: none;
}
.error-btn:hover {
    background: var(--error-btn-dark);
}
.error-message {
    color: #d32f2f;
    background: #ffebee;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
}
.info-text {
    font-size: 0.9em;
    color: #666;
    margin-bottom: 20px;
}