* {
    box-sizing: border-box;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(135deg, white, #0060AB);
}

/* Ansichten - nur eine ist zur Zeit sichtbar */
.view {
    display: none !important;
}

.view.active {
    display: flex !important;
}

/* ========== LOGIN BEREICH ========== */
#login-view {
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-container {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 12px;
    width: 100%;
    max-width: 320px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    text-align: center;
}

.login-container h2 {
    color: #ffffff;
    margin-bottom: 30px;
    font-size: 24px;
}

.login-container input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: none;
    border-radius: 8px;
    outline: none;
    font-size: 15px;
}

.login-container button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    background-color: #ffffff;
    color: #242424;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.login-container button:hover {
    background-color: #eaeaea;
}

#error-message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    font-size: 14px;
    display: none;
}

/* ========== GALERIE BEREICH ========== */
#gallery-view {
    flex-direction: column;
}

header {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header h1 {
    margin: 0;
    color: #ffffff;
    font-size: 28px;
}

header button {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    background-color: #ffffff;
    color: #242424;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

header button:hover {
    background-color: #eaeaea;
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1400px;
    width: 100%;
}

.gallery-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    gap: 15px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.image-container {
    width: 100%;
    height: 300px;
    border-radius: 8px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.not-available {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    text-align: center;
    padding: 20px;
}

.text-container {
    color: #ffffff;
    font-size: 15px;
    line-height: 1.5;
    text-align: center;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========== FOOTER ========== */
footer {
    padding: 15px;
    text-align: left;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

#login-view footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
}

#gallery-view footer {
    background: rgba(255, 255, 255, 0.1);
}

footer p {
    margin: 0;
    padding-left: 20px;
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 768px) {
    .gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    header h1 {
        font-size: 22px;
    }

    header button {
        padding: 8px 15px;
        font-size: 12px;
    }

    main {
        padding: 30px 15px;
    }

    .gallery-item {
        padding: 15px;
    }

    .image-container {
        height: 150px;
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 30px 20px;
    }

    .login-container h2 {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .login-container input,
    .login-container button {
        padding: 10px;
        font-size: 14px;
    }

    .gallery {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    header h1 {
        font-size: 20px;
    }

    main {
        padding: 20px 10px;
    }

    footer {
        font-size: 12px;
    }

    footer p {
        padding-left: 10px;
    }
}

@media (max-width: 360px) {
    .login-container {
        padding: 20px 15px;
    }

    #login-view {
        padding: 10px;
    }
}

@media (min-width: 1400px) {
    .gallery {
        grid-template-columns: repeat(4, 1fr);
        max-width: 1600px;
    }
}