/* ===========================
   PrimGeo – Login/Register
   Farbenfrohe Stile für Kinder
   =========================== */

:root {
    /* Hauptfarben */
    --color-primary: #4a90d9;
    --color-primary-dark: #3570b5;
    --color-secondary: #f39c12;
    --color-secondary-dark: #d68910;
    --color-accent: #e74c8b;

    /* Hintergrund-Gradient */
    --bg-start: #d4f1ff;
    --bg-end: #c8f7dc;

    /* Karte */
    --card-bg: #ffffff;
    --card-radius: 20px;
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    --card-max-width: 450px;

    /* Text */
    --text-dark: #2c3e50;
    --text-medium: #555555;
    --text-light: #888888;

    /* Inputs */
    --input-border: #d1d8e0;
    --input-border-focus: var(--color-primary);
    --input-radius: 12px;
    --input-padding: 15px;

    /* Buttons */
    --btn-radius: 14px;
    --btn-padding: 15px 24px;

    /* Nachrichten */
    --msg-error-bg: #fdecea;
    --msg-error-border: #e74c3c;
    --msg-error-text: #c0392b;
    --msg-success-bg: #eafaf1;
    --msg-success-border: #27ae60;
    --msg-success-text: #1e8449;

    /* Sonstiges */
    --font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 17px;
    --transition-speed: 0.25s;
}

/* ---- Reset & Basis ---- */

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-dark);
    background: linear-gradient(135deg, var(--bg-start) 0%, var(--bg-end) 100%);
    min-height: 100vh;
    line-height: 1.5;
}

.page-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px 16px;
}

/* ---- Header ---- */

.site-header {
    text-align: center;
    margin-bottom: 28px;
}

.logo {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--color-primary);
    text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.06);
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-medium);
    margin-top: 4px;
    font-weight: 500;
}

/* ---- Auth Card ---- */

.auth-card {
    background: var(--card-bg);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    width: 100%;
    max-width: var(--card-max-width);
    padding: 36px 32px;
    transition: box-shadow var(--transition-speed) ease;
}

.auth-card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.16);
}

/* ---- Form ---- */

.auth-form {
    display: flex;
    flex-direction: column;
}

.auth-form[hidden] {
    display: none;
}

.form-title {
    font-size: 1.6rem;
    text-align: center;
    margin-bottom: 22px;
    color: var(--text-dark);
}

.auth-form label {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 5px;
    margin-top: 14px;
    color: var(--text-medium);
}

.auth-form label:first-of-type {
    margin-top: 0;
}

.auth-form input {
    width: 100%;
    padding: var(--input-padding);
    font-size: 1rem;
    font-family: var(--font-family);
    border: 2px solid var(--input-border);
    border-radius: var(--input-radius);
    outline: none;
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    background: #fafbfc;
}

.auth-form input::placeholder {
    color: #b0b8c1;
}

.auth-form input:focus {
    border-color: var(--input-border-focus);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.18);
    background: #fff;
}

/* ---- Password Toggle ---- */

.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-wrapper input {
    padding-right: 50px;
}

.toggle-password {
    position: absolute;
    right: 8px;
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 8px;
    transition: background var(--transition-speed) ease;
    line-height: 1;
    opacity: 0.6;
}

.toggle-password:hover {
    background: rgba(0, 0, 0, 0.06);
    opacity: 1;
}

.toggle-password.visible {
    opacity: 1;
}

/* ---- Button ---- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: var(--font-family);
    font-size: 1.15rem;
    font-weight: 700;
    padding: var(--btn-padding);
    border: none;
    border-radius: var(--btn-radius);
    cursor: pointer;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease, filter var(--transition-speed) ease;
    margin-top: 22px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, #6bb3f0 100%);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(74, 144, 217, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 217, 0.45);
    filter: brightness(1.05);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(74, 144, 217, 0.3);
}

/* ---- Toggle Link ---- */

.toggle-text {
    text-align: center;
    margin-top: 20px;
    font-size: 0.95rem;
    color: var(--text-medium);
}

.toggle-link {
    color: var(--color-accent);
    font-weight: 700;
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}

.toggle-link:hover {
    color: var(--color-secondary-dark);
    text-decoration: underline;
}

/* ---- Messages ---- */

.message {
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 18px;
    text-align: center;
    line-height: 1.4;
}

.message[hidden] {
    display: none;
}

.message.error {
    background: var(--msg-error-bg);
    border: 2px solid var(--msg-error-border);
    color: var(--msg-error-text);
}

.message.success {
    background: var(--msg-success-bg);
    border: 2px solid var(--msg-success-border);
    color: var(--msg-success-text);
}

/* ---- Footer ---- */

.site-footer {
    text-align: center;
    margin-top: 32px;
    color: var(--text-medium);
}

.site-footer p {
    font-size: 1rem;
    font-weight: 600;
}

.footer-small {
    font-size: 0.85rem !important;
    font-weight: 400 !important;
    color: var(--text-light) !important;
    margin-top: 4px;
}

/* ---- Quick Login ---- */

.quick-login {
    margin-top: 18px;
    text-align: center;
}

.quick-login-label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 10px;
    font-weight: 600;
}

.quick-login-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn-quick {
    flex: 1;
    padding: 10px 14px;
    font-size: 0.95rem;
    font-weight: 600;
    border: 2px solid;
    border-radius: var(--btn-radius);
    cursor: pointer;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    background: #fff;
}

.btn-teach {
    border-color: #4CAF50;
    color: #2E7D32;
}

.btn-teach:hover {
    background: #E8F5E9;
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(76, 175, 80, 0.3);
}

.btn-learn {
    border-color: #FF9800;
    color: #E65100;
}

.btn-learn:hover {
    background: #FFF3E0;
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(255, 152, 0, 0.3);
}

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

@media (max-width: 520px) {
    .logo {
        font-size: 2.2rem;
    }

    .subtitle {
        font-size: 1.05rem;
    }

    .auth-card {
        padding: 28px 20px;
        border-radius: 16px;
    }

    .form-title {
        font-size: 1.35rem;
    }

    .auth-form input {
        padding: 13px;
    }

    .btn {
        padding: 13px 20px;
        font-size: 1.05rem;
    }
}

@media (max-width: 360px) {
    .logo {
        font-size: 1.8rem;
    }

    .auth-card {
        padding: 22px 16px;
    }
}