:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --dark-color: #212529;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
}

html, body {
    height: 100%;
    margin: 0;
}

/* ===== LAYOUT BASE ===== */

#wrapper {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

#sidebar-wrapper {
    width: 15rem;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--dark-color);
    transform: translateX(0);
    transition: transform 0.3s ease;
    z-index: 1000;
}

    #sidebar-wrapper .sidebar-heading {
        padding: 1.5rem 1.25rem;
        font-size: 1.2rem;
        color: white;
        background-color: rgba(0, 0, 0, 0.2);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    #sidebar-wrapper .list-group {
        width: 15rem;
    }

#wrapper.toggled #sidebar-wrapper {
    transform: translateX(-100%);
}

#page-content-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    margin-left: 15rem;
    transition: margin-left 0.3s ease;
}

#wrapper.toggled #page-content-wrapper {
    margin-left: 0;
}

@media (max-width: 768px) {
    #sidebar-wrapper {
        transform: translateX(-100%);
    }

    #wrapper.toggled #sidebar-wrapper {
        transform: translateX(0);
    }

    #page-content-wrapper {
        margin-left: 0;
    }
}

/* ===== AREA CONTENUTO ===== */

.page-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

/* ===== CHAT ===== */

.chat-root {
    flex: 1;
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: #ffffff;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    background: #eef2f7;
    overflow-x: hidden;
}

.chat-input {
    flex-shrink: 0;
    background: #ffffff;
    border-top: 1px solid var(--border-color);
    padding: 0.75rem;
}

/* ===== MESSAGGI ===== */

.chat-message {
    display: flex;
    margin-bottom: 1rem;
}

    .chat-message.me {
        justify-content: flex-end;
    }

.chat-bubble {
    max-width: 260px;
    padding: 0.5rem 0.75rem;
    border-radius: 1rem;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    overflow-wrap: break-word;
    word-break: break-word;
}

    .chat-bubble.me {
        background: var(--primary-color);
        color: #ffffff;
        border-bottom-right-radius: 0.25rem;
    }

    .chat-bubble.other {
        background: #ffffff;
        border-bottom-left-radius: 0.25rem;
    }

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

/* ===== COMPONENTI ESISTENTI ===== */

.card {
    border-radius: 0.75rem;
    overflow: hidden;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
    }

.card-header.bg-success {
    background-color: var(--success-color) !important;
}

.card-header.bg-warning {
    background-color: var(--warning-color) !important;
}

.card-header.bg-info {
    background-color: var(--info-color) !important;
}

.card.bg-primary {
    background-color: var(--primary-color) !important;
}

.btn-outline-success {
    color: var(--success-color);
    border-color: var(--success-color);
}

    .btn-outline-success:hover {
        background-color: var(--success-color);
        color: white;
    }

.btn-outline-danger {
    color: #dc3545;
    border-color: #dc3545;
}

    .btn-outline-danger:hover {
        background-color: #dc3545;
        color: white;
    }

.form-range::-webkit-slider-thumb,
.form-range::-moz-range-thumb,
.form-range::-ms-thumb {
    background-color: var(--primary-color);
}

.status-text {
    font-size: 0.9em;
    font-weight: 500;
}

.list-group-item.active {
    background-color: rgba(255, 255, 255, 0.1) !important;
    border-color: transparent !important;
}

.list-group-item-action:hover {
    background-color: rgba(255, 255, 255, 0.05) !important;
}