.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.auth-header {
    text-align: center;
    padding: 32px 24px 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
}

.auth-header h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.auth-header p {
    font-size: 16px;
    opacity: 0.9;
}

.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--gray-200);
}

.tab-btn {
    flex: 1;
    padding: 16px;
    background: none;
    border: none;
    font-size: 16px;
    font-weight: 500;
    color: var(--gray-500);
    cursor: pointer;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-btn:hover {
    background-color: var(--gray-50);
}

.auth-form {
    display: none !important;
    padding: 24px;
}

.auth-form.active {
    display: block !important;
}

.auth-form h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 24px 0 16px;
    color: var(--gray-900);
}

.auth-form h3:first-child {
    margin-top: 0;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 16px;
    transition: all 0.2s;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input.error {
    border-color: #dc2626;
    background-color: #fef2f2;
}

.form-group input.error:focus {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.error-message {
    display: block;
    color: #dc2626;
    font-size: 12px;
    margin-top: 4px;
    line-height: 1.4;
}

.help-text {
    display: block;
    color: var(--gray-500);
    font-size: 12px;
    margin-top: 4px;
    line-height: 1.4;
}