.auth-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 50%, var(--secondary-color) 100%);
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 450px;
    background-color: var(--bg-primary);
    border-radius: 1rem;
    padding: 2.5rem;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    margin-bottom: 1.5rem;
}

.logo-large .logo-image {
    height: 60px;
    width: auto;
    object-fit: contain;
}

.auth-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.auth-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 2rem;
    background-color: var(--bg-secondary);
    padding: 0.25rem;
    border-radius: 0.5rem;
}

.auth-tab {
    padding: 0.75rem;
    border: none;
    background: none;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 0.375rem;
    transition: all 0.2s;
}

.auth-tab.active {
    background-color: var(--bg-primary);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.social-auth {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.btn-social {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: all 0.2s;
}

.btn-social:hover {
    background-color: var(--bg-secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-google {
    border-color: #4285F4;
}

.btn-google:hover {
    background-color: #f8f9ff;
}

.divider {
    position: relative;
    text-align: center;
    margin: 1.5rem 0;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background-color: var(--border-color);
}

.divider span {
    position: relative;
    background-color: var(--bg-primary);
    padding: 0 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="text"] {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.checkbox-group {
    display: flex;
    align-items: start;
    gap: 0.75rem;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 0.25rem;
    width: 1rem;
    height: 1rem;
    cursor: pointer;
}

.checkbox-group label {
    margin-bottom: 0;
    font-weight: 400;
    font-size: 0.875rem;
}

.checkbox-group a {
    color: var(--primary-color);
    text-decoration: none;
}

.checkbox-group a:hover {
    text-decoration: underline;
}

.form-footer {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 1.5rem;
}

.link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
}

.link:hover {
    text-decoration: underline;
}

.btn-full {
    width: 100%;
    padding: 0.875rem;
    font-size: 1rem;
}

.auth-message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
}

.auth-message.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #34d399;
}

.auth-message.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #f87171;
}

.auth-footer {
    margin-top: 2rem;
    text-align: center;
}

.auth-footer a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    opacity: 0.9;
    transition: opacity 0.2s;
}

.auth-footer a:hover {
    opacity: 1;
}

@media (max-width: 480px) {
    .auth-container {
        padding: 1rem;
    }

    .auth-card {
        padding: 1.5rem;
    }

    .auth-header h1 {
        font-size: 1.5rem;
    }

    .logo-large .logo-icon {
        font-size: 2rem;
    }

    .logo-large .logo-text {
        font-size: 1.5rem;
    }
}