/* =======================
   RD Login – mobile-first
   ======================= */

:root {
    --brand: #e51b20;
    --brand-grad-angle: to bottom right;
    --brand-grad-1: #4b4b4b;
    --brand-grad-2: #020202;
    --bg: #f4f4f4;
    --text: #111827;
    --muted: #6b7280;
    --ring: 0 0 0 3px rgba(229,27,32,.25);
    --radius: 14px;
    --shadow: 0 10px 28px rgba(0,0,0,.12);
    --input-brd: #d1d5db;
    --input-brd-focus: #9ca3af;
    --error: #dc2626;
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

    body.login-body {
        margin: 0;
        background: var(--bg);
        color: var(--text);
        font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    }

/* Shell zentriert alles vertikal/horizontal ohne unnötigen Scroll */
.login-shell {
    min-height: 100svh;
    display: grid;
    grid-template-rows: 1fr auto; /* content + footer */
    align-items: center;
    justify-items: center;
    padding: 16px;
    gap: 16px;
}

/* ---------- Card ---------- */
.login-container {
    display: flex;
    width: min(100%, 960px);
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

/* Brand links – absolut mittig */
.login-left {
    flex: 1 1 48%;
    background: linear-gradient(var(--brand-grad-angle), var(--brand-grad-1), var(--brand-grad-2));
    color: #fff;
    padding: clamp(24px, 5vw, 48px);
    display: grid;
    place-items: center;
}

.brand-stack {
    display: grid;
    place-items: center;
    gap: 12px;
    text-align: center;
}

.brand-logo {
    width: clamp(120px, 60%, 260px);
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0,0,0,.25);
}

.brand-title {
    margin: 0;
    font-weight: 800;
    letter-spacing: .2px;
}

.brand-sub {
    margin: 4px 0 0;
    color: #e5e7eb;
}

/* Form rechts */
.login-right {
    flex: 1 1 52%;
    padding: clamp(24px, 5vw, 48px);
    background: #fff;
}

    .login-right h2 {
        margin: 0 0 8px;
        font-size: clamp(22px, 2.2vw, 26px);
    }

.login-intro {
    margin: 0 0 18px;
    color: var(--muted);
    font-size: .95rem;
}

.form-field {
    margin-bottom: 14px;
}

.form-label {
    display: inline-block;
    margin-bottom: 6px;
    font-size: .95rem;
}

.form-control {
    display: block;
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--input-brd);
    border-radius: 10px;
    background: #fff;
    color: var(--text);
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}

    .form-control:focus {
        border-color: var(--input-brd-focus);
        box-shadow: var(--ring);
    }

    .input-validation-error,
    .form-control.input-validation-error {
        border-color: var(--error);
    }

.field-validation-error {
    color: var(--error);
    font-size: .9rem;
}

/* Validation-Summary – nur anzeigen, wenn echte Fehler da sind */
.validation-summary-errors {
    padding: 10px 12px;
    border-radius: 10px;
    background: #fff5f5;
    border: 1px solid #fecaca;
    color: #7f1d1d;
    margin: 4px 0 12px;
}

    .validation-summary-errors:not(:has(li:not([style*="display:none"]))) {
        display: none;
    }

/* Remember */
.remember-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 8px;
}

    .remember-row input[type="checkbox"] {
        width: 18px;
        height: 18px;
        margin: 0;
    }

/* Input-Gruppe mit Icon-Addon (Bootstrap-Icons) */
.input-group {
    display: flex;
    align-items: stretch;
    width: 100%;
}

    .input-group .input-group-text {
        display: inline-flex;
        align-items: center;
        padding: 0 12px;
        background: #f3f4f6;
        border: 1px solid var(--input-brd);
        border-right: 0;
        color: #6b7280;
        border-radius: 10px 0 0 10px;
    }

    .input-group:has(.form-control:focus) .input-group-text {
        border-color: var(--input-brd-focus);
    }

    .input-group .form-control {
        border-left: 0;
        border-radius: 0 10px 10px 0;
    }

        /* Fokusring auch bei Addon anpassen */
        .input-group .form-control:focus {
            border-left: 0;
            box-shadow: var(--ring);
        }

        /* Validierungszustand auf Addon spiegeln (optional, dezent) */
        .form-control.is-invalid + .field-validation-error,
        .input-group .form-control.is-invalid {
            /* bereits rot über deine Regeln */
        }

        .input-group .form-control.is-valid {
            /* behält deinen grünen Rahmen */
        }

/* ===== RD Buttons (ohne Bootstrap-Kollision) ===== */
.btn-forgot {
    order: 1;
}

.btn-register {
    order: 2;
}

.btn-login {
    order: 3;
}

.rd-btn {
    --btn-bg: #eef2f7;
    --btn-fg: #111;
    --btn-brd: #d1d5db;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: 10px 16px;
    height: 40px; /* einheitliche Höhe */
    line-height: 1;
    border-radius: 10px;
    border: 1px solid var(--btn-brd);
    background: var(--btn-bg);
    color: var(--btn-fg);
    text-decoration: none;
    cursor: pointer;
    font-weight: 600;
    transition: filter .15s, transform .02s;
}

    .rd-btn:active {
        transform: translateY(1px);
    }

/* Primär */
.rd-btn-primary {
    --btn-bg: var(--brand, #e51b20);
    --btn-brd: var(--brand, #e51b20);
    --btn-fg: #fff;
}

    .rd-btn-primary:hover {
        filter: brightness(.96);
    }

    .rd-btn-primary:focus {
        box-shadow: var(--ring, 0 0 0 3px rgba(229,27,32,.25));
        outline: none;
    }

/* Sekundär */
.rd-btn-secondary:hover {
    filter: brightness(.98);
}

/* Actions: links <forgot> | rechts <register + login> */
.form-actions {
    display: flex;
    gap: 12px;
    align-items: stretch;
    justify-content: space-between;
    flex-wrap: wrap; /* darf umbrechen */
}

    .form-actions .rd-btn {
        flex: 1 1 220px; /* nimmt Platz, darf umbrechen */
        min-width: 0; /* verhindert Überlaufen auf iOS */
        height: 44px;
    }

    .form-actions .btn-login { /* Login ganz rechts auf Desktop */
        margin-left: auto;
    }

.actions-right {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

/* Einheitliche Button-Höhe im rechten Panel */
.login-right .rd-btn {
    height: 40px !important;
    padding: 10px 16px !important;
    line-height: 1 !important;
    border-radius: 10px !important;
}

/* Footer */
.login-footer {
    text-align: center;
    color: var(--muted);
    font-size: .95rem;
}

/* Autofill */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--text);
    -webkit-box-shadow: 0 0 0px 1000px #fff inset;
    box-shadow: 0 0 0px 1000px #fff inset;
    transition: background-color 5000s ease-in-out 0s;
}

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
    .login-container {
        flex-direction: column;
    }

    .login-left {
        padding: 28px;
    }

    .login-right {
        padding: 22px;
    }

    .form-actions {
        flex-wrap: wrap;
    }

    .actions-right {
        width: 100%;
        justify-content: flex-end;
    }
}

/* <= 720px: Buttons untereinander, volle Breite */
@media (max-width: 720px) {
    .btn-forgot, .btn-register, .btn-login {
        order: initial;
    }

    .form-actions {
        flex-direction: column;
    }

        .form-actions .rd-btn {
            width: 100%;
            flex: 1 1 auto;
        }
}

/* <= 640px: Buttons untereinander, volle Breite */
@media (max-width: 640px) {
    .form-actions {
        display: flex !important;
        flex-direction: column !important;
        gap: 10px;
    }

        /* beide Wrapper auf volle Breite und vertikal stapeln */
        .form-actions .actions-left,
        .form-actions .actions-right {
            width: 100%;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        /* alle Buttons volle Breite */
        .form-actions .rd-btn {
            width: 100%;
            justify-content: center;
        }

    /* Reihenfolge optional: zuerst "Passwort vergessen?", dann "Registrieren", dann "Login" */
    .btn-forgot {
        order: 1;
    }

    .btn-register {
        order: 2;
    }

    .btn-login {
        order: 3;
    }
}

/* Live-Validierung (grün/rot) */
.form-control.is-valid {
    border-color: #22c55e;
    box-shadow: 0 0 0 .2rem rgba(34,197,94,.25);
}

.form-control.is-invalid {
    border-color: #ef4444;
    box-shadow: 0 0 0 .2rem rgba(239,68,68,.22);
}

.input-group .form-control.is-valid,
.input-group .form-control.is-invalid {
    /* gleiche Höhe/Optik in Input-Groups */
    border-left-width: 0; /* weil .input-group-text schon den linken Rand zeichnet */
}

/* --- Tip/Notice box --- */
.tip-box {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    background: #fffbea; /* soft yellow */
    border: 1px solid #fde68a; /* amber-200 */
    color: #7c5a00; /* readable on yellow */
    border-radius: 10px;
    margin: 16px 0;
}

    .tip-box .tip-icon {
        line-height: 1;
        font-size: 1.1rem;
        margin-top: 2px; /* align icon with first line of text */
    }

    .tip-box strong {
        font-weight: 700;
        margin-right: .25rem;
    }

/* rechte Spalte: vertikaler Stack + Abstände */
.right-stack {
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

    .right-stack > * + * {
        margin-top: 14px;
    }
/* gleichmäßiger Abstand */

/* Element an das untere Ende schieben (z.B. Button-Zeile) */
.push-bottom {
    margin-top: auto;
}

/* Bewegungen reduzieren */
@media (prefers-reduced-motion: reduce) {
    .rd-btn, .form-control {
        transition: none;
    }
}