body.auth-page {
    display: flex; align-items: center; justify-content: center;
    padding: 16px; min-height: 100vh;
}
.auth-container {
    display: flex; width: 100%; max-width: 1100px; min-height: 600px;
    background: var(--bg-card); border-radius: var(--radius-xl); border: 1px solid var(--border);
    box-shadow: var(--shadow-lg); overflow: hidden;
}
.auth-left {
    flex: 1 1 45%;
    background: linear-gradient(135deg, #1a2f1f 0%, #142015 40%, #0d1a10 100%);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 48px 32px; text-align: center; position: relative; overflow: hidden;
}
.auth-left-logo { font-size: 2.8rem; font-weight: 700; letter-spacing: -0.03em; margin-bottom: 16px; color: #fff; }
.auth-left-logo span { color: var(--accent); }
.auth-left-text { font-size: 1.05rem; color: rgba(255,255,255,0.7); line-height: 1.6; max-width: 320px; }
.auth-left-illustration { margin-top: 32px; font-size: 4rem; opacity: 0.2; color: var(--accent); }
.auth-right { flex: 1 1 55%; padding: 40px 32px; display: flex; flex-direction: column; justify-content: center; }
.auth-switcher { display: flex; gap: 16px; margin-bottom: 32px; justify-content: center; }
.auth-switch-btn {
    font-size: 1rem; font-weight: 500; padding: 8px 24px; border-radius: 24px;
    border: 1px solid var(--border-strong); background: transparent; color: var(--text-secondary);
    cursor: pointer; transition: var(--transition); font-family: inherit;
}
.auth-switch-btn.active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.auth-form { display: none; flex-direction: column; gap: 16px; }
.auth-form.active { display: flex; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 0.78rem; font-weight: 500; color: var(--text-secondary); }
.form-input {
    width: 100%; background: var(--bg-input); border: 1px solid var(--border-strong);
    border-radius: var(--radius); padding: 12px 16px; color: var(--text); font-size: 0.9rem;
    outline: none; transition: var(--transition); font-family: inherit;
}
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.form-input.error { border-color: var(--red); }
.error-message { font-size: 0.72rem; color: var(--red); display: none; }
.error-message.visible { display: block; }
.form-input-wrapper { position: relative; }
.password-toggle {
    position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
    background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1rem;
}
.form-options { display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; }
.remember-me { display: flex; align-items: center; gap: 8px; color: var(--text-secondary); cursor: pointer; }
.forgot-link { color: var(--accent); cursor: pointer; }
.submit-btn {
    width: 100%; padding: 14px; background: var(--accent); color: #fff; font-size: 1rem;
    font-weight: 600; border: none; border-radius: var(--radius); cursor: pointer;
    transition: var(--transition); font-family: inherit; margin-top: 8px;
}
.submit-btn:hover { background: var(--accent-hover); }
.social-login { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
.social-btn {
    display: flex; align-items: center; justify-content: center; gap: 10px; padding: 12px;
    border-radius: var(--radius); border: 1px solid var(--border-strong); background: var(--bg-surface);
    color: var(--text); cursor: pointer; font-family: inherit; font-size: 0.9rem;
}
.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; font-size: 0.85rem; }
.alert-error { background: var(--red-soft); color: var(--red); border: 1px solid var(--red); }
.alert-success { background: var(--accent-soft); color: var(--green); }
.modal-box {
    background: var(--bg-card); border: 1px solid var(--border-strong);
    border-radius: var(--radius-xl); padding: 32px; max-width: 420px; width: 90%; text-align: center;
}
@media (max-width: 768px) {
    .auth-container { flex-direction: column; max-width: 500px; min-height: auto; }
    .auth-left { padding: 24px 16px; }
    .auth-right { padding: 24px 16px; }
    body.auth-page { padding: 0; align-items: flex-start; background: var(--bg-card); }
}