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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 auto 30px auto;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    max-width: 1000px;
}

.header-container h1 {
    margin: 0;
    flex: 1;
    text-align: center;
    color: white;
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

/* Tilbake Button */
.header-container a {
    padding: 10px 25px !important;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white !important;
    border: none !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    width: auto !important;
    margin: 0 !important;
    transition: all 0.3s !important;
    font-size: 0.95em !important;
    text-decoration: none !important;
    display: inline-block !important;
}

.header-container a:hover {
    background-color: #c0392b !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 12px rgba(231, 76, 60, 0.4) !important;
}

.header-container a:active {
    transform: translateY(0) !important;
}

/* Logout Button */
#logoutBtn {
    padding: 10px 25px !important;
    background-color: #e74c3c !important;
    color: white !important;
    border: none !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    width: auto !important;
    margin: 0 !important;
    transition: all 0.3s !important;
    font-size: 0.95em !important;
}

#logoutBtn:hover {
    background-color: #c0392b !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 12px rgba(231, 76, 60, 0.4) !important;
}

#logoutBtn:active {
    transform: translateY(0) !important;
}

/* Login og Registrering */
h1 {
    color: white;
    margin: 30px 0 20px 0;
    text-align: center;
    font-size: 2em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

form {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    max-width: 450px;
    margin: 20px auto;
}

label {
    display: block;
    margin-top: 15px;
    margin-bottom: 8px;
    color: #333;
    font-weight: 600;
    font-size: 0.95em;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 0.95em;
    transition: all 0.3s;
}

input[type="text"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(102, 126, 234, 0.4);
}

button:active {
    transform: translateY(0);
}

#meldinger {
    color: #fff;
    text-align: center;
    margin-top: 20px;
    padding: 15px;
    font-weight: 600;
    border-radius: 8px;
}

/* Rom Side */
#Logo {
    text-align: center;
    color: white;
    font-size: 2.8em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

#romDiv {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
    margin: 30px auto;
    max-width: 1200px;
}

.romContainer {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.romBtn {
    padding: 25px;
    font-size: 1.1em;
    background: white;
    color: #667eea;
    font-weight: 700;
    border: 3px solid #667eea;
    border-radius: 12px;
    transition: all 0.3s;
    width: 100%;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.romBtn:hover {
    background: #667eea;
    color: white;
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.slettRomBtn {
    padding: 10px 15px !important;
    font-size: 0.85em !important;
    background: #e74c3c !important;
    color: white !important;
    border: none !important;
    width: 100% !important;
    margin-top: 0 !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    transition: all 0.3s !important;
}

.slettRomBtn:hover {
    background: #c0392b !important;
    transform: translateY(-2px) !important;
}

#Romskjema {
    max-width: 500px;
    margin: 30px auto;
}

/* Chat Side */
#utskrift {
    background: white;
    padding: 25px;
    border-radius: 15px;
    max-width: 900px;
    margin: 20px auto;
    height: 500px;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

#utskrift div {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-left: 4px solid #667eea;
    border-radius: 8px;
    word-wrap: break-word;
}

.tid {
    color: #999;
    font-size: 0.85em;
    font-weight: 700;
    display: block;
    margin-bottom: 5px;
}

#utskrift button {
    padding: 6px 12px;
    font-size: 0.75em;
    background: #e74c3c;
    color: white;
    margin-left: 10px;
    margin-top: 8px;
    width: auto;
    border-radius: 5px;
    border: none;
    font-weight: 600;
    transition: all 0.3s;
}

#utskrift button:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

#skjema {
    max-width: 900px;
    margin: 20px auto;
    display: flex;
    gap: 12px;
}

#skjema label {
    display: none;
}

#skjema input {
    flex: 1;
    padding: 14px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 0.95em;
    margin: 0;
    transition: all 0.3s;
}

#skjema input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

#skjema button {
    padding: 14px 35px;
    width: auto;
    margin: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 8px;
}

/* Scrollbar */
#utskrift::-webkit-scrollbar {
    width: 10px;
}

#utskrift::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

#utskrift::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 10px;
}

#utskrift::-webkit-scrollbar-thumb:hover {
    background: #764ba2;
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
        gap: 15px;
    }

    .header-container h1 {
        font-size: 1.8em;
        width: 100%;
        order: -1;
    }

    .header-container a,
    #logoutBtn {
        flex: 1;
        text-align: center;
    }

    h1 {
        font-size: 1.5em;
    }

    #romDiv {
        grid-template-columns: 1fr;
    }

    #skjema {
        flex-direction: column;
    }

    #skjema input,
    #skjema button {
        width: 100%;
    }

    #utskrift {
        max-width: 100%;
        height: 400px;
    }

    form {
        padding: 25px;
        max-width: 100%;
    }

    button {
        font-size: 0.95em;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .header-container {
        padding: 15px;
    }

    .header-container h1 {
        font-size: 1.5em;
    }

    h1 {
        font-size: 1.3em;
        margin: 15px 0;
    }

    form {
        padding: 20px;
        margin: 10px auto;
    }

    #romDiv {
        gap: 15px;
    }

    .romBtn {
        padding: 15px;
        font-size: 1em;
    }

    #utskrift {
        padding: 15px;
        height: 350px;
    }

    #utskrift div {
        padding: 10px;
        margin-bottom: 10px;
    }
}

#meldinger {
    max-width: 480px;
    margin: 16px auto;
    padding: 12px 16px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
}

#meldinger.error {
    background: rgba(231, 76, 60, 0.08);
    color: #e74c3c;
    border-left: 4px solid #e74c3c;
}

#meldinger.success {
    background: rgba(46, 204, 113, 0.08);
    color: #27ae60;
    border-left: 4px solid #27ae60;
}

/* Auth card (login/register tabs) */
.auth-card {
    max-width: 480px;
    margin: 40px auto;
    background: rgba(255,255,255,0.06);
    padding: 18px;
    border-radius: 12px;
    backdrop-filter: blur(6px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.tabs {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 14px;
}

.tab {
    padding: 8px 18px;
    border-radius: 8px;
    background: rgba(255,255,255,0.06);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.06);
    cursor: pointer;
    font-weight: 700;
}

.tab.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 6px 16px rgba(102,126,234,0.25);
}

.tab-panels .panel { display: none; }
.tab-panels .panel.active { display: block; }

.tab-panels .panel input { width: 100%; padding: 10px; margin: 8px 0 12px 0; border-radius: 8px; border: 1px solid #ddd; }
.tab-panels .panel button { width: 100%; padding: 12px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: #fff; border-radius: 8px; border: none; font-weight: 700; }

#meldinger { margin-top: 12px; }