/*
 * Split-screen auth pages (login). Loaded alongside site.css (fonts + --tdu-* variables),
 * intentionally its own stylesheet since layouts/auth.php renders a full-viewport page with
 * no shared header/nav/footer chrome.
 */

.tdu-auth-body {
    margin: 0;
    background: #ffffff;
}

.tdu-auth-page,
.tdu-auth-page *,
.tdu-auth-page *::before,
.tdu-auth-page *::after {
    box-sizing: border-box;
}

.tdu-visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ---------- Flash bar ---------- */

.tdu-auth-flash-bar {
    padding: .75rem 1.5rem;
}

.tdu-auth-flash {
    max-width: 640px;
    margin: 0 auto .5rem;
    padding: .65rem 1rem;
    border-radius: 10px;
    font-family: var(--tdu-font-body);
    font-size: .9rem;
    text-align: center;
}

.tdu-auth-flash-success {
    background: #eafaf1;
    border: 1px solid #b7ebc6;
    color: #1e7b45;
}

.tdu-auth-flash-error {
    background: #fdecea;
    border: 1px solid #f5c6cb;
    color: #b42318;
}

/* ---------- Split layout ---------- */

.tdu-auth-page {
    min-height: 100vh;
    display: flex;
}

/* Left — brand panel (~45%) */

.tdu-auth-brand {
    flex: 0 0 45%;
    max-width: 45%;
    position: relative;
    overflow: hidden;
    background: var(--tdu-navy);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 3rem;
}

.tdu-auth-brand-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.tdu-auth-shape {
    position: absolute;
    border-radius: 50%;
}

.tdu-auth-shape-1 {
    width: 26rem;
    height: 26rem;
    top: -8rem;
    left: -8rem;
    background: rgba(255, 255, 255, .06);
}

.tdu-auth-shape-2 {
    width: 20rem;
    height: 20rem;
    bottom: -7rem;
    right: -6rem;
    background: rgba(74, 185, 207, .18);
}

.tdu-auth-shape-3 {
    width: 14rem;
    height: 14rem;
    bottom: 4rem;
    left: -5rem;
    background: rgba(74, 185, 207, .12);
}

.tdu-auth-shape-4 {
    width: 9rem;
    height: 9rem;
    top: 3rem;
    right: 3rem;
    background: rgba(255, 255, 255, .08);
}

.tdu-auth-brand-content {
    position: relative;
    z-index: 1;
    max-width: 420px;
    color: #ffffff;
}

.tdu-auth-logo {
    display: block;
}

.tdu-auth-tagline {
    font-family: var(--tdu-font-heading);
    font-weight: 800;
    font-size: 2.25rem;
    line-height: 1.2;
    color: #ffffff;
    margin: 2rem 0 1rem;
}

.tdu-auth-desc {
    font-family: var(--tdu-font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: rgba(255, 255, 255, .82);
    margin: 0 0 2.25rem;
}

.tdu-auth-pills {
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.tdu-pill {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    width: fit-content;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .22);
    color: #ffffff;
    font-family: var(--tdu-font-body);
    font-size: .85rem;
    font-weight: 500;
    padding: .5rem 1.05rem;
    border-radius: 999px;
}

.tdu-pill i {
    color: var(--tdu-teal);
}

/* Right — form panel (~55%) */

.tdu-auth-form-panel {
    flex: 1 1 55%;
    background: #f7f8f8;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
}

.tdu-auth-form-wrap {
    width: 100%;
    max-width: 400px;
}

.tdu-auth-form-title {
    font-family: var(--tdu-font-heading);
    color: var(--tdu-navy);
    font-size: 1.75rem;
    margin: 0 0 .5rem;
}

.tdu-auth-form-desc {
    font-family: var(--tdu-font-body);
    color: var(--tdu-text);
    font-size: .95rem;
    margin: 0 0 2rem;
}

.tdu-auth-alert {
    background: #fdecea;
    border: 1px solid #f5c6cb;
    color: #b42318;
    font-family: var(--tdu-font-body);
    font-size: .875rem;
    padding: .75rem 1rem;
    border-radius: 10px;
    margin-bottom: 1.25rem;
}

/* Inputs */

.tdu-input-group {
    position: relative;
    margin-bottom: 1.25rem;
}

.tdu-input-icon {
    position: absolute;
    left: 15px;
    top: 23px;
    transform: translateY(-50%);
    color: #98a3a9;
    font-size: .9rem;
    pointer-events: none;
}

.tdu-input-group input {
    width: 100%;
    box-sizing: border-box;
    padding: .8rem 1rem .8rem 2.6rem;
    border: 1px solid #dde3e6;
    border-radius: 10px;
    background: #ffffff;
    font-family: var(--tdu-font-body);
    font-size: .95rem;
    color: var(--tdu-navy);
}

.tdu-input-group input::placeholder {
    color: #a4adb2;
}

.tdu-input-group input:focus {
    outline: none;
    border-color: var(--tdu-teal-dark);
}

.tdu-input-group #login-password {
    padding-right: 2.6rem;
}

.tdu-input-group.has-error input {
    border-color: #e5484d;
}

.tdu-toggle-password {
    position: absolute;
    right: 8px;
    top: 23px;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #98a3a9;
    font-size: .9rem;
    padding: .4rem .5rem;
    cursor: pointer;
    line-height: 1;
}

.tdu-toggle-password:hover {
    color: var(--tdu-navy);
}

.tdu-field-error {
    color: #e5484d;
    font-family: var(--tdu-font-body);
    font-size: .8rem;
    margin: .4rem 0 0;
}

.tdu-btn-block {
    display: block;
    width: 100%;
    box-sizing: border-box;
    background: var(--tdu-teal-dark);
    color: #ffffff;
    border: none;
    border-radius: 10px;
    font-family: var(--tdu-font-heading);
    font-weight: 600;
    font-size: 1rem;
    padding: .85rem 1rem;
    cursor: pointer;
    margin-top: .5rem;
}

.tdu-btn-block:hover {
    background: var(--tdu-navy);
}

/* Giriş formunun altındaki "Şifremi unuttum" bağlantısı (docs/progress.md Faz 50).
   Rengi --tdu-navy; --tdu-teal-dark beyaz üstünde yalnızca 3.33:1 veriyor ve WCAG AA'yı
   (4.5:1) metin için karşılamıyor — aynı tespit admin.css'te --tdu-admin-accent-dark'ın
   doğuş gerekçesiydi. Navy-on-white 9.5:1. */
.tdu-auth-forgot-hint {
    text-align: right;
    font-family: var(--tdu-font-body);
    font-size: .875rem;
    margin: -.35rem 0 .25rem;
}

.tdu-auth-forgot-hint a {
    color: var(--tdu-navy);
    font-weight: 600;
    text-decoration: none;
}

.tdu-auth-forgot-hint a:hover {
    text-decoration: underline;
}

.tdu-auth-register-hint {
    text-align: center;
    font-family: var(--tdu-font-body);
    font-size: .9rem;
    color: var(--tdu-text);
    margin: 1.5rem 0 0;
}

.tdu-auth-register-hint a {
    color: var(--tdu-teal-dark);
    font-weight: 600;
    text-decoration: none;
}

.tdu-auth-footer {
    text-align: center;
    margin-top: 2.5rem;
}

.tdu-auth-footer a {
    color: var(--tdu-text);
    font-family: var(--tdu-font-body);
    font-size: .85rem;
    text-decoration: none;
}

.tdu-auth-footer a:hover {
    color: var(--tdu-teal-dark);
}

.tdu-auth-copyright {
    font-family: var(--tdu-font-body);
    font-size: .75rem;
    color: #a4adb2;
    margin: .75rem 0 0;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
    .tdu-auth-brand {
        display: none;
    }

    .tdu-auth-form-panel {
        flex: 1 1 100%;
    }
}