/*
 * ZEIDLER Zentrale – login.css
 * Zweispaltiges Login-Layout
 */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --blue:      #356a88;
    --blue-dark: #244d63;
    --gold:      #fab719;
    --grey:      #333333;
    --muted:     #6b8799;
    --border:    #dde4ea;
    --bg:        #f4f6f8;
    --white:     #ffffff;
    --error-bg:  #fef2f2;
    --error:     #c0392b;
    --error-border: #fecaca;
    --font:      'Segoe UI', 'Aptos', Arial, sans-serif;
    --radius:    10px;
}

html, body {
    height: 100%;
    font-family: var(--font);
    background: var(--bg);
    color: var(--grey);
    -webkit-font-smoothing: antialiased;
}

/* ── Zweispaltiges Layout ───────────────────────────────────────── */

.login-page {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
}

/* ── Linke Seite: CI-Blau ───────────────────────────────────────── */

.login-brand-panel {
    background: var(--blue);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

/* Dezentes Muster im Hintergrund */
.login-brand-panel::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 300px;
    height: 300px;
    border: 40px solid rgba(255,255,255,0.06);
    border-radius: 50%;
}

.login-brand-panel::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -40px;
    width: 240px;
    height: 240px;
    border: 30px solid rgba(255,255,255,0.04);
    border-radius: 50%;
}

.login-brand-panel__inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin: auto;
}

.login-brand-panel__logos {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
}

.login-brand-panel__logo {
    height: auto;
    width: 260px;
    max-width: 100%;
    display: block;
    mix-blend-mode: screen;
}

.login-brand-panel__logo-fallback {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 4px;
    margin-bottom: 2rem;
}

.login-brand-panel__claim {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.login-brand-panel__divider {
    width: 40px;
    height: 2px;
    background: var(--gold);
    margin-bottom: 1.5rem;
}

.login-brand-panel__tagline {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.login-brand-panel__footer {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
    z-index: 1;
}

/* ── Rechte Seite: Formular ─────────────────────────────────────── */

.login-form-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    background: var(--white);
}

.login-form-panel__inner {
    width: 100%;
    max-width: 380px;
}

.login-mobile-logo {
    display: none;
    margin-bottom: 2rem;
}

.login-mobile-logo__img {
    height: 36px;
    width: auto;
}

.login-form-panel__title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--grey);
    margin-bottom: 0.4rem;
}

.login-form-panel__subtitle {
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 2rem;
}

/* ── Alert ──────────────────────────────────────────────────────── */

.login-alert {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-left: 3px solid var(--error);
    color: var(--error);
    padding: 11px 14px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
}

/* ── Formular ───────────────────────────────────────────────────── */

.login-form__group {
    margin-bottom: 1.1rem;
}

.login-form__label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--grey);
    margin-bottom: 6px;
    letter-spacing: 0.01em;
}

.login-form__input {
    width: 100%;
    height: 48px;
    padding: 0 14px;
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    color: var(--grey);
    font-family: var(--font);
    transition: border-color 0.2s, box-shadow 0.2s;
    appearance: none;
}

.login-form__input:focus {
    outline: none;
    border-color: var(--blue);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(53, 106, 136, 0.12);
}

.login-form__input::placeholder {
    color: #b0bec8;
}

.login-form__submit {
    width: 100%;
    height: 48px;
    margin-top: 0.5rem;
    background: var(--blue);
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    letter-spacing: 0.01em;
}

.login-form__submit:hover {
    background: var(--blue-dark);
}

.login-form__submit:active {
    transform: scale(0.98);
}

.login-form__submit:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 3px;
}

.login-form__hint {
    margin-top: 1.5rem;
    font-size: 0.78rem;
    color: var(--muted);
    line-height: 1.6;
    padding: 12px 14px;
    background: var(--bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

/* ── Responsive: Mobil einspaltig ───────────────────────────────── */

@media (max-width: 768px) {
    .login-page {
        grid-template-columns: 1fr;
    }

    .login-brand-panel {
        display: none;
    }

    .login-form-panel {
        padding: 2rem 1.25rem;
        align-items: flex-start;
        padding-top: 3rem;
    }

    .login-mobile-logo {
        display: block;
    }
}