/* Authentication Pages - Login & Signup */

.auth-page {
    min-height: calc(100vh - 300px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 4px 12px var(--shadow-light);
}

.auth-card h1 {
    color: var(--color-primary);
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.auth-subtitle {
    color: var(--color-gray-700);
    text-align: center;
    margin-bottom: 2rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"] {
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-gray-400);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

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

.field-help {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin: 0;
}

.field-error {
    font-size: 0.8rem;
    color: var(--color-error);
    margin: 0;
}

.form-errors {
    background: var(--color-error-bg);
    border: 1px solid var(--color-error-border);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
}

.form-errors p {
    color: var(--color-error);
    margin: 0;
    font-size: 0.85rem;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--color-gray-700);
    cursor: pointer;
}

.remember-me input {
    accent-color: var(--color-primary);
}

.captcha-group {
    margin-top: 0.5rem;
}

.btn-submit {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: 0.85rem;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 0.5rem;
}

.btn-submit:hover {
    background: var(--color-primary-dark);
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--color-gray-700);
    font-size: 0.9rem;
}

.auth-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Social Login */
.social-divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
    color: var(--color-gray-500);
    font-size: 0.85rem;
}

.social-divider::before,
.social-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-gray-300);
}

.social-divider span {
    padding: 0 1rem;
}

.social-login {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-google {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-gray-700);
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.btn-google:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-400);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-google svg {
    flex-shrink: 0;
}

/* Social Account Info (signup page) */
.social-account-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.social-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.social-email {
    font-size: 0.9rem;
    color: var(--color-gray-700);
    font-weight: 500;
}

/* Dark mode */
body.dark-mode .auth-card {
    background: var(--color-bg-secondary);
    border-color: var(--color-border);
}

body.dark-mode .auth-card h1 {
    color: var(--color-primary-light);
}

body.dark-mode .form-group input {
    background: var(--color-bg-tertiary);
    border-color: var(--color-gray-400);
    color: var(--color-text);
}

body.dark-mode .form-group input:focus {
    box-shadow: 0 0 0 3px var(--color-bg-active);
}

body.dark-mode .social-divider {
    color: var(--color-gray-500);
}

body.dark-mode .social-divider::before,
body.dark-mode .social-divider::after {
    background: var(--color-gray-600);
}

body.dark-mode .btn-google {
    background: var(--color-bg-tertiary);
    border-color: var(--color-gray-500);
    color: var(--color-text);
}

body.dark-mode .btn-google:hover {
    background: var(--color-bg-active);
    border-color: var(--color-gray-400);
}

body.dark-mode .social-account-info {
    background: var(--color-bg-tertiary);
    border-color: var(--color-gray-600);
}

body.dark-mode .social-email {
    color: var(--color-text);
}

/* ===== Responsive: 600px (Large Phone) ===== */
@media (max-width: 600px) {
    .auth-page {
        padding: 1.5rem 1rem;
        min-height: calc(100vh - 250px);
    }

    .auth-card {
        padding: 1.5rem;
        border-radius: var(--radius-xl);
    }

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

    .auth-subtitle {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }

    .form-group label {
        font-size: 0.85rem;
    }

    .form-group input[type="text"],
    .form-group input[type="password"],
    .form-group input[type="email"] {
        padding: 0.65rem 0.9rem;
        font-size: 0.9rem;
    }

    .btn-submit {
        padding: 0.75rem;
        font-size: 0.95rem;
    }

    .auth-footer {
        font-size: 0.85rem;
    }
}

/* ===== Responsive: 480px (Small Phone) ===== */
@media (max-width: 480px) {
    .auth-page {
        padding: 1rem 0.75rem;
    }

    .auth-card {
        padding: 1.25rem;
    }

    .auth-card h1 {
        font-size: 1.35rem;
    }

    .auth-subtitle {
        font-size: 0.85rem;
        margin-bottom: 1.25rem;
    }

    .form-options {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }

    .remember-me {
        font-size: 0.8rem;
    }
}