:root {
    --bg: #0f1112;
    --panel: #131516;
    --muted: #2f3334;
    --card: #0f1213;
    --accent: #0ea5ff;
    --accent-hover: #0284c7;
    --text: #e6eef3;
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    font-family: Inter, Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
}

.app {
    flex: 1 1 auto;
    width: 96vw;
    margin: 0.5vh auto;
    display: flex;
    gap: 14px;
    align-items: stretch;
    min-height: 0;
}

/* --- SIDEBAR --- */
.sidebar {
    width: 300px;
    min-width: 200px;
    background: var(--panel);
    border: 1px solid var(--muted);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    flex-direction: column;
}

    .sidebar h2 {
        margin: 4px 0 10px 6px;
        font-size: 15px;
    }


.chat-list {
    flex: 1;
    overflow: auto;
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-footer {
    margin-top: 10px;
    display: flex;
    gap: 8px;
}

/* --- BUTTONS --- */
.btn {
    padding: 8px 10px;
    border-radius: 6px;
    border: 0;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #002;
    transition: transform 180ms cubic-bezier(.2,.8,.2,1), box-shadow 180ms ease, background-color 180ms ease;
    will-change: transform, box-shadow;
}

    .btn-primary:hover {
        transform: translateY(-4px) scale(1.01);
        box-shadow: 0 6px 18px rgba(0,0,0,0.12), inset 0 1px 0 rgba(255,255,255,0.02);
        background: var(--accent-hover);
        color: #001;
    }

    .btn-primary:active {
        transform: translateY(-2px) scale(0.995);
    }

.btn-ghost {
    background: transparent;
    border: 1px solid var(--muted);
    color: var(--text);
    transition: background-color 180ms ease, transform 160ms cubic-bezier(.2,.8,.2,1), box-shadow 180ms ease, border-color 180ms ease;
}

    .btn-ghost:hover {
        transform: translateY(-4px) scale(1.01);
        box-shadow: 0 3px 8px rgba(55, 64, 70, 0.12), inset 0 1px 0 rgba(255,255,255,0.02);
        background: rgba(46, 54, 59, 0.08);
        border-color: rgba(17, 18, 19, 0.12);
    }

    .btn-ghost:active {
        transform: translateY(-2px) scale(0.995);
    }

#mobileMenuBtn {
    display: none !important;
}

/* --- MAIN PANEL & CHAT AREA --- */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--muted);
    border-radius: 8px;
    padding: 12px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

#chatArea {
    display: none;
    flex: 1;
    flex-direction: column;
    min-height: 0;
    height: 100%;
}

.welcome {
    margin: auto;
    max-width: 760px;
    width: 72%;
    background: var(--card);
    border-radius: 8px;
    padding: 24px;
    border: 1px solid var(--muted);
    text-align: center;
}

    .welcome h3 {
        margin: 0 0 12px;
    }

.inputs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 12px;
}

    .inputs input {
        padding: 8px;
        border-radius: 6px;
        border: 1px solid var(--muted);
        background: var(--muted);
        color: var(--text);
    }

.chat-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

    .chat-top .meta {
        font-size: 13px;
        opacity: .8;
    }

/* --- MESSAGES --- */
.messages {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 14px;
    border-radius: 6px;
    background: linear-gradient(180deg,#070808,#0a0b0c);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.message {
    display: inline-block;
    max-width: 72%;
    padding: 8px 12px;
    border-radius: 10px;
    background: #02475e;
    color: var(--text);
    word-wrap: break-word;
    white-space: pre-wrap;
    position: relative;
    transition: background 0.2s;
}

    .message:hover {
        background: #035873;
    }

    .message img {
        display: block;
        max-width: 320px;
        max-height: 420px;
        width: auto;
        height: auto;
        border-radius: 8px;
        margin-top: 6px;
        box-shadow: 0 2px 6px rgba(0,0,0,0.25);
    }

.meta-line {
    font-size: 12px;
    opacity: .85;
    margin-top: 8px;
    margin-bottom: 6px;
}

/* Message nickname for registered users */
.msg-nick-registered {
    color: var(--accent);
}

.input-row {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    align-items: center;
}

.nick-field {
    width: 200px;
    min-width: 160px;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--muted);
    background: var(--muted);
    color: var(--text);
    font-size: 14px;
}

.msg-input {
    flex: 1;
    display: flex;
    gap: 8px;
    transition: box-shadow 180ms ease, transform 180ms ease;
}

    .msg-input textarea {
        flex: 1;
        min-height: 42px;
        max-height: 120px;
        width: 100%;
        padding: 10px;
        border-radius: 6px;
        border: 1px solid var(--muted);
        background: #0f1415;
        color: var(--text);
        resize: none;
        line-height: 1.4;
        font-family: inherit;
        overflow-y: auto;
    }

        .msg-input textarea:hover {
            transform: translateY(-3px);
            border-radius: 8px;
            border-color: rgba(14,165,255,0.12);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.02);
            transition: border-color 180ms ease, box-shadow 180ms ease;
        }

/* --- MENTIONS --- */
.mention-box {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 100%;
    margin-bottom: 6px;
    background: var(--card);
    border: 1px solid var(--muted);
    border-radius: 8px;
    padding: 6px;
    max-height: 180px;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0,0,0,0.35);
    z-index: 20;
}

.mention-item {
    padding: 6px 8px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

    .mention-item:hover {
        background: rgba(14,165,255,0.12);
    }

.send-btn {
    padding: 10px 14px;
    border-radius: 6px;
    border: 0;
    background: var(--accent);
    cursor: pointer;
    transition: transform 180ms cubic-bezier(.2,.8,.2,1), box-shadow 180ms ease;
}

    .send-btn:hover {
        transform: translateY(-4px) scale(1.01);
        box-shadow: 0 6px 18px rgba(0,0,0,0.12);
        background: var(--accent-hover);
        color: #001;
    }

    .send-btn:active {
        transform: translateY(-2px) scale(0.995);
    }

/* --- MODAL --- */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.modal {
    background: var(--card);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--muted);
    min-width: 300px;
    max-width: 80vw;
    max-height: 96vh;
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    box-sizing: border-box;
    align-items: stretch;
}


    .modal .row {
        display: flex !important;
        flex-direction: column !important;
        gap: 6px;
        margin-bottom: 8px;
        align-items: flex-start !important;
    }

        .modal .row label {
            width: 100% !important;
        }

        .modal .row input {
            width: 100% !important;
        }

/* Modal Image Viewer */
.modal-image {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    border-radius: 10px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.6);
}

.modal-viewer {
    position: relative;
    display: inline-block;
}

.modal-download {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0,0,0,0.6);
    color: white;
    padding: 6px 8px;
    border-radius: 8px;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.45);
    z-index: 10001;
}

/* --- UTILS & SCROLLBARS --- */
.trash-icon {
    font-size: 16px;
    opacity: 0.8;
}

    .trash-icon:hover {
        opacity: 1;
    }

.file-preview {
    display: inline-block;
    background: rgba(255,255,255,0.03);
    color: var(--text);
    padding: 6px 8px;
    border-radius: 8px;
    margin-top: 6px;
    font-size: 13px;
}

.file-link {
    display: inline-block;
    padding: 6px 10px;
    background: rgba(255,255,255,0.02);
    border-radius: 8px;
    color: var(--text);
    text-decoration: none;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

    .file-link:hover {
        text-decoration: underline;
    }

.wavy-logo {
    display: block;
    overflow: visible;
    letter-spacing: 2px;
    font-weight: 700;
}

    .wavy-logo span {
        display: inline-block;
        will-change: transform;
        transition: transform 360ms cubic-bezier(.2,.8,.2,1);
    }

.date-separator {
    display: block;
    text-align: center;
    margin: 10px auto;
    padding: 6px 12px;
    max-width: 240px;
    border-radius: 12px;
    font-size: 12px;
    color: var(--text);
    opacity: 0.85;
    background: rgba(255,255,255,0.02);
    box-shadow: 0 2px 8px rgba(0,0,0,0.35);
}

.messages::-webkit-scrollbar, .chat-list::-webkit-scrollbar, .modal::-webkit-scrollbar, textarea::-webkit-scrollbar, .panel::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

.messages::-webkit-scrollbar-track, .chat-list::-webkit-scrollbar-track, .modal::-webkit-scrollbar-track, textarea::-webkit-scrollbar-track, .panel::-webkit-scrollbar-track {
    background: transparent;
}

.messages::-webkit-scrollbar-thumb, .chat-list::-webkit-scrollbar-thumb, .modal::-webkit-scrollbar-thumb, textarea::-webkit-scrollbar-thumb, .panel::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, rgba(14,165,255,0.16), rgba(14,165,255,0.08));
    border-radius: 8px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

/* --- MOBILE RESPONSIVENESS --- */
@media(max-width:900px) {
    .app {
        flex-direction: column;
        height: 95vh;
    }

    .sidebar {
        display: none;
    }

    .main {
        order: 1;
    }

    .welcome {
        width: 92%;
    }

    .nick-input {
        width: 30%;
    }

    #mobileMenuBtn {
        display: inline-block !important;
    }

    #topControls {
        position: static !important;
        width: 100%;
        display: flex !important;
        justify-content: center;
        gap: 10px;
        padding: 8px 12px;
        margin-top: 8px;
    }

    #userPanel {
        position: static !important;
        right: auto !important;
        top: auto !important;
        width: 100%;
        padding: 6px 12px;
        margin: 6px 0 0 0;
        text-align: center;
    }

    #userBox {
        display: inline-block;
    }

    #userMenu {
        margin: 8px auto 0 auto;
        position: static;
        display: none;
    }

    /* Logged-in username color */
    #currentUserNick {
        color: var(--accent);
    }

    #siteLogo {
        font-size: 1.1rem;
        margin-top: 8px;
        margin-left: 12px;
        width: calc(100% - 24px);
    }
}

body.sidebar-open .sidebar {
    display: block;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 78%;
    max-width: 360px;
    z-index: 2000;
    background: var(--panel);
    border-right: 1px solid var(--muted);
    padding: 12px;
    overflow: auto;
    box-shadow: 8px 0 30px rgba(0,0,0,0.6);
}

/* --- WEBRTC & VOICE --- */
.speaking-border {
    border-color: #22c55e !important;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.4);
    color: #4ade80;
    transition: all 0.1s ease;
}

#webrtc-audio-container {
    display: block;
    position: absolute;
    top: -9999px;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* --- TREE VIEW STYLES (FINAL VERSION) --- */

.tree-item {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    color: var(--text);
    padding: 2px 0;
    line-height: 1.6;
    display: flex;
    align-items: center;
    transition: color 0.2s;
    user-select: none;
    background: transparent;
    border: none;
}

.ping-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-left: 6px;
    border-radius: 50%;
    background: #3b82f6;
    box-shadow: 0 0 6px rgba(59, 130, 246, 0.6);
    vertical-align: middle;
}

/* 1. SERVER HEADER (Black Box) */
.tree-server {
    background: linear-gradient(180deg, #0d1112, #111315);
    border: 1px solid var(--muted);
    border-radius: 5px;
    padding: 4px 12px;
    margin-top: 12px;
    margin-bottom: 4px;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    cursor: pointer;
    text-transform: uppercase;
}

    .tree-server:hover {
        border-color: rgba(14,165,255,0.3);
        background: #15181a;
    }

/* 2. CATEGORIES */
.tree-category {
    font-size: 15px;
    color: var(--muted);
    font-weight: bold;
    margin-left: 8px;
    margin-top: 4px;
    opacity: 0.8;
}

/* 3. CHANNELS */
.tree-channel {
    margin-left: 18px;
    cursor: pointer;
    border-radius: 4px;
    padding-left: 4px;
}

    .tree-channel:hover {
        color: #fff;
        background: rgba(255,255,255,0.05);
    }

    .tree-channel.active {
        color: var(--accent);
        font-weight: bold;
    }

/* 4. VOICE USERS */
.tree-user {
    margin-left: 36px;
    font-size: 12px;
    color: #a1a1aa;
}

.tree-user-nick {
    margin-right: 4px;
}

/* 5. GRAPHICS & ICONS */
.tree-prefix {
    color: #4b5563;
    margin-right: 6px;
    display: inline-block;
}

.add-channel-btn {
    opacity: 0.4;
    cursor: pointer;
    font-size: 14px;
    padding: 0 1px;
    margin-left: 8px;
    transition: 0.2s;
    text-align: right;
}

    .add-channel-btn:hover {
        opacity: 1;
        color: var(--accent);
        font-weight: bold;
    }

.tree-controls {
    margin-left: 6px;
    display: flex;
    gap: 2px;
}

.t-icon {
    opacity: 0.5;
    cursor: pointer;
    font-size: 12px;
}

    .t-icon:hover {
        opacity: 1;
        transform: scale(1.1);
    }


.add-channel-btn {
    cursor: pointer;
    margin-left: 10px;
    opacity: 0.5;
    font-weight: bold;
    font-size: 14px;
    color: var(--text);
    transition: all 0.2s;
}

    .add-channel-btn:hover {
        opacity: 1;
        color: var(--accent);
        transform: scale(1.2);
    }

.settings-icon {
    opacity: 0.4;
    cursor: pointer;
    font-size: 14px;
    margin-left: 6px;
    transition: 0.2s;
}

    .settings-icon:hover {
        opacity: 1;
        transform: rotate(90deg);
    }

.mic-test-bar-container {
    width: 100%;
    height: 10px;
    background: #111;
    border-radius: 5px;
    overflow: hidden;
    margin-top: 8px;
    border: 1px solid var(--muted);
}

.mic-test-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--accent);
    transition: width 0.05s linear;
}

.range-slider {
    width: 100%;
    margin-top: 5px;
    cursor: pointer;
}

/* Styl dla ikonek w drzewie użytkowników (Mic/Headphones) */
.t-icon {
    padding: 2px 4px;
    border-radius: 4px;
    transition: all 0.2s;
}

    /* Kiedy najeżdżasz myszką */
    .t-icon:hover {
        background: rgba(255, 255, 255, 0.1);
        opacity: 1;
        transform: none; /* Reset poprzedniego powiększenia, bo mamy tło */
    }

/* Styl dla przycisków w nowym panelu dolnym */
.btn-icon-control {
    background: transparent;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 16px;
    padding: 4px 8px;
    border-radius: 4px;
    transition: 0.2s;
}

    .btn-icon-control:hover {
        background: rgba(255,255,255,0.1);
    }

    /* To sprawia, że przycisk w dolnym panelu świeci na czerwono, gdy jest aktywny (mute) */
    .btn-icon-control.active {
        background: rgba(255, 0, 0, 0.2); /* Czerwone tło (delikatne) */
        color: #ef4444 !important; /* Czerwona ikona */
        box-shadow: inset 0 0 0 1px #ef4444; /* Czerwona ramka */
    }

/* Dodatkowo: Jeśli chcesz, aby ikonki przy nickach (drzewko) też miały czerwone tło, gdy są wyciszone */
/* Musisz w JS dodawać klasę .muted-icon, ale Twój obecny kod używa 'filter'. */
/* Aby wymusić czerwone tło po kliknięciu na ikonkę w drzewie (gdy jest wyciszona): */