/* --- GİRİŞ & KAYIT SAYFALARI (SPLIT LAYOUT) --- */
.split-layout-page { display: flex; min-height: 100vh; }
.split-layout-page .main-header { display: none; }
.split-layout-image-panel {
    flex: 1; background-size: cover; background-position: center; position: relative;
    display: flex; align-items: center; justify-content: center; color: var(--white-color);
}
.image-panel-overlay {
    background: linear-gradient(to top, rgba(0,0,0,0.7), rgba(0,0,0,0.1));
    width: 100%; height: 100%; display: flex; flex-direction: column;
    justify-content: flex-end; text-align: center; padding: 4rem;
}
.image-panel-overlay h2 { font-family: var(--font-serif); font-size: 3rem; margin-bottom: 1rem; }
.image-panel-overlay p { font-size: 1.2rem; max-width: 400px; line-height: 1.7; margin: 0 auto; }
.split-layout-form-panel {
    flex: 1; display: flex; align-items: center; justify-content: center; padding: 2rem;
    background-color: var(--white-color);
}
.auth-container { max-width: 400px; width: 100%; }
.auth-logo { text-align: center; margin-bottom: 2rem; }
.auth-logo img { max-width: 180px; }
.auth-form { border: none; box-shadow: none; padding: 0; }
.auth-form h1 { font-family: var(--font-serif); font-size: 2.2rem; text-align: center; margin-bottom: 2rem; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; font-size: 0.9rem; }
.form-group input {
    width: 100%; padding: 14px; border: 1px solid var(--border-color);
    background-color: var(--primary-color); border-radius: 4px; transition: border-color 0.3s;
}
.form-group input:focus { border-color: var(--secondary-color); outline: none; }
.auth-switch { text-align: center; margin-top: 1.5rem; }
.auth-switch a { color: var(--secondary-color); font-weight: 500; }
.error-message { color: var(--error-color); background-color: #fdd; padding: 12px; border-radius: 4px; margin-bottom: 1.5rem; text-align: center; font-size: 0.9rem; }
.success-message { color: var(--success-color); background-color: #d3f9d8; padding: 12px; border-radius: 4px; margin-bottom: 1.5rem; text-align: center; font-size: 0.9rem; }

/* --- AUTH MOBİL UYUMLULUK --- */
@media (max-width: 992px) {
    .split-layout-page { flex-direction: column; }
    .split-layout-image-panel { min-height: 40vh; }
}
@media (max-width: 768px) {
    .split-layout-image-panel { display: none; }
    .split-layout-form-panel { background-color: var(--primary-color); padding-top: 4rem; }
}