:root {
    /* --- LIGHT THEME (Default) --- */
    --bg-app: linear-gradient(165deg, rgba(233, 245, 248, 1) 0%, rgba(255, 216, 192, 1) 69%, rgba(192, 156, 136, 1) 100%);
    --bg-sidebar: rgba(255, 255, 255, 0.6);
    --bg-chat: rgba(255, 255, 255, 0.4);
    --bg-input: rgba(255, 255, 255, 0.8);
    --bg-modal: rgba(255, 255, 255, 0.9);
    --text-primary: #2a4061;
    --text-secondary: #666;
    --msg-sent: #ff907c;
    --msg-text-sent: #fff;
    --msg-received: #ffffff;
    --msg-text-received: #2a4061;
    --border-color: rgba(255,255,255,0.5);
    --hover-color: rgba(255,255,255,0.5);
    --shadow: 0 5px 15px rgba(0,0,0,0.1);
    --icon-invert: 0;
    
    /* Zmienne dla bezpiecznych obszarów (notch/home bar na iPhone) */
    --safe-top: env(safe-area-inset-top, 20px);
    --safe-bottom: env(safe-area-inset-bottom, 20px);
}

[data-theme="dark"] {
    /* --- DARK THEME --- */
    --bg-app: #202225;
    --bg-sidebar: #2f3136;
    --bg-chat: #36393f;
    --bg-input: #40444b;
    --bg-modal: #36393f;
    --text-primary: #dcddde;
    --text-secondary: #b9bbbe;
    --msg-sent: #5865f2;
    --msg-text-sent: #fff;
    --msg-received: #2f3136;
    --msg-text-received: #dcddde;
    --border-color: #202225;
    --hover-color: #393c43;
    --shadow: 0 5px 15px rgba(0,0,0,0.5);
    --icon-invert: 1;
}

* { box-sizing: border-box; font-family: 'Lato', sans-serif; transition: background 0.3s, color 0.1s; }

body {
    margin: 0; padding: 0; 
    height: 100dvh; 
    width: 100vw;
    overflow: hidden;
    background: var(--bg-app); color: var(--text-primary);
    /* Zapobiega "gumowaniu" strony na iOS */
    overscroll-behavior: none;
}

.hidden { display: none !important; }

/* --- AUTH --- */
.center-form-container-parent { display: flex; justify-content: center; align-items: center; height: 100dvh; }
.center-form-container {
    padding: 40px; width: 100%; max-width: 450px;
    background: var(--bg-sidebar); backdrop-filter: blur(10px);
    border-radius: 20px; box-shadow: var(--shadow);
}
h1 { font-family: 'Sigmar', cursive; text-align: center; color: var(--text-primary); margin-bottom: 30px; }
.auth-input {
    width: 100%; padding: 12px; margin-bottom: 10px; border-radius: 8px; border: 1px solid #ccc;
    background: var(--bg-input); color: var(--text-primary);
}
.primary-btn {
    width: 100%; padding: 12px; background: var(--msg-sent); color: white; border: none;
    border-radius: 8px; font-weight: bold; cursor: pointer; transition: filter 0.2s; margin-bottom: 10px;
}
.primary-btn:hover { filter: brightness(1.1); }
.secondary { 
    width: 100%; background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary); 
    padding: 12px; border-radius: 8px; cursor: pointer; text-align: center;
}
#auth-error { color: #ff4444; text-align: center; margin-top: 10px; }
#toggle-auth { text-align: center; margin-top: 15px; cursor: pointer; font-size: 0.9em; color: var(--text-secondary); }

/* --- LAYOUT --- */
#app-wrapper { display: flex; width: 100%; height: 100dvh; overflow: hidden; }

.sidebar {
    width: 320px; background: var(--bg-sidebar); border-right: 1px solid var(--border-color);
    display: flex; flex-direction: column; flex-shrink: 0;
    
    /* FIX: Margines na górze (pod zegarem) i na dole */
    padding-top: var(--safe-top); 
    padding-bottom: var(--safe-bottom);
}

.user-profile {
    padding: 15px; display: flex; align-items: center; gap: 10px; cursor: pointer;
    border-bottom: 1px solid var(--border-color);
}
.user-profile:hover { background: var(--hover-color); }
.avatar {
    width: 45px; height: 45px; border-radius: 50%; background-color: #ddd;
    background-size: cover; background-position: center; flex-shrink: 0;
}
.icon-btn { background: none; border: none; color: var(--text-secondary); cursor: pointer; font-size: 1.2em; }
.icon-btn:hover { color: var(--msg-sent); }

/* Search & Tabs */
.search-input {
    width: 100%; padding: 10px; border-radius: 15px; border: none;
    background: var(--bg-input); color: var(--text-primary); outline: none;
}
#search-results {
    position: absolute; top: 60px; left: 15px; right: 15px;
    background: var(--bg-modal); border-radius: 10px; box-shadow: var(--shadow);
    z-index: 1000; max-height: 200px; overflow-y: auto;
}
.search-item { padding: 10px; border-bottom: 1px solid var(--border-color); cursor: pointer; display: flex; align-items: center; gap: 10px; }
.search-item:hover { background: var(--hover-color); }

.sidebar-tabs { display: flex; border-bottom: 1px solid var(--border-color); }
.tab-btn {
    flex: 1; background: transparent; border: none; padding: 12px;
    color: var(--text-secondary); cursor: pointer; font-weight: bold;
    border-bottom: 2px solid transparent;
}
.tab-btn:hover { background: var(--hover-color); }
.tab-btn.active { color: var(--msg-sent); border-bottom-color: var(--msg-sent); }

/* Conversation List */
#conversations-list { flex: 1; overflow-y: auto; overflow-x: hidden;}
.conv-item { padding: 12px 15px; display: flex; align-items: center; gap: 12px; cursor: pointer; }
.conv-item:hover { background: var(--hover-color); }
.conv-item.active { background: var(--hover-color); border-left: 4px solid var(--msg-sent); }

.secondary-btn { 
    width: 100%; padding: 8px; border: 1px dashed var(--border-color); 
    background: transparent; color: var(--text-secondary); border-radius: 8px; cursor: pointer; margin-top: 10px;
}
.secondary-btn:hover { border-color: var(--msg-sent); color: var(--msg-sent); }

/* --- CHAT AREA --- */
.chat-area { 
    flex: 1; display: flex; flex-direction: column; 
    background: var(--bg-chat); position: relative; min-width: 0; 
    height: 100%;
}
#empty-state { display: flex; flex-direction: column; justify-content: center; align-items: center; height: 100%; color: var(--text-secondary); }
#active-chat { display: flex; flex-direction: column; height: 100%; overflow: hidden; }

.chat-header {
    /* Wysokość nagłówka + bezpieczny obszar */
    min-height: 60px;
    padding-top: calc(var(--safe-top) + 10px); 
    padding-bottom: 10px;
    padding-left: 20px; padding-right: 20px;
    
    display: flex; align-items: center; gap: 10px;
    border-bottom: 1px solid var(--border-color); font-weight: bold; background: var(--bg-sidebar);
    flex-shrink: 0;
}

#messages-container {
    flex: 1; 
    overflow-y: auto; 
    padding: 20px; 
    display: flex; 
    flex-direction: column; 
    gap: 4px;
    min-height: 0; 
}

/* Messages */
.msg-group { display: flex; flex-direction: column; width: 100%; margin-bottom: 10px; }
.msg-row { display: flex; align-items: flex-end; position: relative; }
.msg-row:hover .reaction-btn-add { opacity: 1; }
.msg {
    max-width: 70%; 
    padding: 8px 12px; 
    border-radius: 18px; 
    font-size: 15px; 
    line-height: 1.4;
    position: relative; 
    word-wrap: break-word; 
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);

    /* --- FIX: Blokada zaznaczania tekstu i dymków systemowych --- */
    -webkit-touch-callout: none; /* Blokuje menu systemowe na iOS (kopiuj/zapisz) */
    -webkit-user-select: none;   /* Safari */
    -khtml-user-select: none;    /* Konqueror HTML */
    -moz-user-select: none;      /* Firefox */
    -ms-user-select: none;       /* Internet Explorer/Edge */
    user-select: none;           /* Standard */
    -webkit-touch-callout: none; /* iOS Safari */
      -webkit-user-select: none; /* Safari */
       -khtml-user-select: none; /* Konqueror HTML */
         -moz-user-select: none; /* Old versions of Firefox */
          -ms-user-select: none; /* Internet Explorer/Edge */
              user-select: none; /* Non-prefixed version, currently
                                    supported by Chrome, Edge, Opera and Firefox */
}
.msg.mine { margin-left: auto; background: var(--msg-sent); color: var(--msg-text-sent); border-bottom-right-radius: 4px; }
.msg.theirs { margin-right: auto; background: var(--msg-received); color: var(--msg-text-received); border-bottom-left-radius: 4px; }
.msg img { 
    max-width: 400px; 
    max-height: 300px;
    width: auto;
    border-radius: 10px; 
    cursor: pointer; 
    
    -webkit-touch-callout: none; /* Ważne dla iOS */
    pointer-events: auto; /* Upewniamy się, że kliknięcia nadal działają */
    -webkit-touch-callout: none; /* iOS Safari */
      -webkit-user-select: none; /* Safari */
       -khtml-user-select: none; /* Konqueror HTML */
         -moz-user-select: none; /* Old versions of Firefox */
          -ms-user-select: none; /* Internet Explorer/Edge */
              user-select: none; /* Non-prefixed version, currently
                                    supported by Chrome, Edge, Opera and Firefox */
}
.msg-row{
    -webkit-touch-callout: none; /* iOS Safari */
      -webkit-user-select: none; /* Safari */
       -khtml-user-select: none; /* Konqueror HTML */
         -moz-user-select: none; /* Old versions of Firefox */
          -ms-user-select: none; /* Internet Explorer/Edge */
              user-select: none; /* Non-prefixed version, currently
                                    supported by Chrome, Edge, Opera and Firefox */
    overflow: hidden;
}
/* File Attachment */
.file-attachment {
    display: flex; align-items: center; gap: 10px;
    text-decoration: none; color: inherit; 
    background: rgba(0,0,0,0.1); padding: 8px 12px;
    border-radius: 12px; transition: background 0.2s;
    border: 1px solid rgba(255,255,255,0.2);
}
.file-attachment:hover { background: rgba(0,0,0,0.2); }
.file-icon { font-size: 24px; }
.file-info { display: flex; flex-direction: column; overflow: hidden; flex: 1; min-width: 0; }
.file-name { font-weight: bold; font-size: 0.95em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 200px; }
.file-type { font-size: 0.75em; opacity: 0.8; text-transform: uppercase; }
.file-download-icon { font-size: 1.2em; opacity: 0.7; }
.msg.file-bubble { padding: 4px; }

/* Date Separator */
.date-separator {
    text-align: center; margin: 15px 0; position: relative; font-size: 0.8em; color: var(--text-secondary);
}
.date-separator::before {
    content: ''; position: absolute; top: 50%; left: 0; right: 0; height: 1px;
    background: var(--border-color); z-index: -1;
}
.date-separator span { background: var(--bg-chat); padding: 0 10px; }

/* Reactions */
.reaction-btn-add { 
    opacity: 0; 
    cursor: pointer; font-size: 1.2em; margin: 0 5px; color: var(--text-secondary); 
    transition: 0.2s; 
    padding: 5px; 
}
.msg-group.group-mine .reactions-container { 
    justify-content: flex-end; 
}
.reactions-container { display: flex; gap: 4px; margin-top: -2px; margin-bottom: 2px; }
.msg.mine + .reactions-container { justify-content: flex-end; }
.reaction-pill {
    background: var(--bg-input); border: 1px solid var(--border-color); border-radius: 12px;
    padding: 2px 6px; font-size: 0.85em; cursor: pointer; display: flex; align-items: center; gap: 4px; user-select: none;
}
.reaction-pill:hover { border-color: var(--msg-sent); }
.reaction-pill.active { background: rgba(88, 101, 242, 0.15); border-color: var(--msg-sent); color: var(--msg-sent); }

/* Input & Drag Drop */
.input-wrapper { 
    padding: 20px; 
    background: var(--bg-sidebar); 
    border-top: 1px solid var(--border-color); 
    flex-shrink: 0; 
    /* FIX: Margines na dole dla paska home */
    padding-bottom: calc(20px + var(--safe-bottom)); 
}
.input-wrapper.dragover { border: 2px dashed var(--msg-sent); background: rgba(255,255,255,0.8); }

.input-area {
    background: var(--bg-input); border-radius: 25px; padding: 5px 15px;
    display: flex; align-items: center; gap: 10px;
}
#message-input { flex: 1; background: transparent; border: none; color: var(--text-primary); outline: none; padding: 10px 0; }
.action-btn { background: none; border: none; font-size: 1.2em; color: var(--text-secondary); cursor: pointer; }
.action-btn:hover { color: var(--msg-sent); }
.send-icon { color: var(--msg-sent); font-size: 1.5em; }

/* GIF Picker & Preview */
#gif-picker {
    position: absolute; bottom: 80px; right: 20px; width: 320px; height: 400px;
    background: var(--bg-modal); border-radius: 10px; box-shadow: var(--shadow);
    padding: 10px; z-index: 500; display: flex; flex-direction: column;
}
.gif-header { font-weight: bold; margin-bottom: 10px; border-bottom: 1px solid var(--border-color); padding-bottom: 5px; display: flex;}
.gif-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; overflow-y: auto; }
.gif-item { width: 100%; height: 100px; object-fit: cover; cursor: pointer; border-radius: 5px; }
.gif-item:hover { transform: scale(1.02); }

#close-gif-picker{
    padding: 3px 5px 5px 10px;
    font-weight: bold;
    cursor: pointer;
}

#image-preview { padding: 10px; background: var(--bg-input); margin-bottom: 10px; border-radius: 10px; display: inline-flex; align-items: center; gap: 10px; }
#preview-img { height: 80px; border-radius: 5px; }

/* --- MODALS & TOASTS --- */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.6); z-index: 1000; display: flex; justify-content: center; align-items: center;
}
.settings-modal {
    background: var(--bg-modal); max-width:calc(100dvw - 20px); width: 900px; padding: 5px; border-radius: 15px;
    box-shadow: var(--shadow); backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.settings-content{
    width: calc(100% - 10px);
    margin-left: 15px;
    border-left: 1px solid #00000045;
    padding:10px;
    padding-left: 15px;
    min-height:500px;
}
.settings-navigator{
    width: 200px;
    display: flex;
    justify-content: start;
    flex-direction: column;
    padding-left: 10px;
    align-items: flex-start;
    margin-bottom: auto;
    margin-top: 20px;
}
.settings-navigator ul{
    list-style: none;
    padding: 0;
    margin-top: 0;
}
.settings-navigator ul li{
    padding: 8px 0;
    cursor:pointer;
}
.settings-navigator ul li:hover{
    opacity: 0.5;
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.setting-group { margin-bottom: 20px; }
.theme-options { display: flex; gap: 10px; margin-top: 5px; }
.theme-btn { flex: 1; padding: 10px; border: 1px solid var(--border-color); background: var(--bg-input); text-align: center; border-radius: 8px; cursor: pointer; }
.theme-btn.active { border-color: var(--msg-sent); color: var(--msg-sent); font-weight: bold; }

#toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast {
    background: var(--bg-sidebar); border-left: 4px solid var(--msg-sent);
    padding: 15px; width: 250px; border-radius: 5px; box-shadow: var(--shadow);
    color: var(--text-primary); transform: translateX(120%); transition: transform 0.3s ease;
    backdrop-filter: blur(10px);
}
.toast.show { transform: translateX(0); }

#mobile-back-btn { display: none; }

/* --- MOBILE RESPONSIVENESS --- */
@media (max-width: 768px) {
    #app-wrapper { position: relative; }

    .sidebar { width: 100%; display: flex; height: 100%; }
    .chat-area { display: none; width: 100%; height: 100%; }

    #app-wrapper.mobile-chat-active .sidebar { display: none; }
    #app-wrapper.mobile-chat-active .chat-area { display: flex; }

    #mobile-back-btn { display: block; margin-right: 0; font-size: 1.2em; padding-left: 0;}
    
    .msg { max-width: 85%; }
    #gif-picker { width: 100%; right: 0; bottom: 0; height: 50vh; border-radius: 15px 15px 0 0; }

    /* --- ZMIANA: Ukrywamy przycisk domyślnie, pokazujemy po klasie .show-actions --- */
    .reaction-btn-add { 
        display: none; 
        align-items: center;
        margin-right: 5px;
    }

    /* Ta klasa zostanie dodana przez JS po przytrzymaniu */
    .msg-row.show-actions .reaction-btn-add {
        display: flex;
        animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    }

    .input-wrapper {
        padding: 10px;
        padding-bottom: calc(10px + var(--safe-bottom)); 
        background-color: black;
    }
    .input-wrapper:focus{
        height:67px;
    }
    .input-area{
        background-color: #15181c;
    }
    main{
        background: var(--bg-app);
    }
    body{
        background: black;
    }
    .input-wrapper:has(input#message-input:focus) {
        height: 67px;
    }
}

/* Animacja pojawiania się serduszka */
@keyframes popIn {
    from { opacity: 0; transform: scale(0.5); }
    to { opacity: 1; transform: scale(1); }
}
/* --- LIGHTBOX --- */
.lightbox-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.9); z-index: 2000;
    display: flex; justify-content: center; align-items: center;
    cursor: zoom-out; opacity: 0; pointer-events: none; transition: opacity 0.2s ease;
}
.lightbox-overlay:not(.hidden) { opacity: 1; pointer-events: auto; }
#lightbox-image {
    max-width: 90vw; max-height: 90vh; border-radius: 5px;
    box-shadow: 0 0 20px rgba(0,0,0,0.5); cursor: default;
    transform: scale(0.95); transition: transform 0.2s ease;
}
.lightbox-overlay:not(.hidden) #lightbox-image { transform: scale(1); }
.lightbox-close {
    /* Przesuwamy przycisk zamykania poniżej notcha */
    position: absolute; top: calc(20px + var(--safe-top)); right: 30px;
    color: white; font-size: 40px; cursor: pointer; font-weight: bold;
    z-index: 2001; text-shadow: 0 0 10px black;
}
.lightbox-close:hover { color: var(--msg-sent); }
/* --- GROUP SIDEBAR --- */
.group-sidebar {
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: 280px;
    background: var(--bg-modal);
    border-left: 1px solid var(--border-color);
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    z-index: 100;
    display: flex; flex-direction: column;
    transform: translateX(0);
    transition: transform 0.3s ease-in-out;
    backdrop-filter: blur(10px);
}

.group-sidebar.hidden {
    display: flex !important; /* Nadpisujemy klasę hidden dla animacji */
    transform: translateX(100%);
    pointer-events: none;
}

.group-sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex; justify-content: space-between; align-items: center;
}

.group-members-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.member-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px;
    border-bottom: 1px solid var(--border-color);
}

.member-info { flex: 1; font-size: 0.9em; overflow: hidden; text-overflow: ellipsis; }
.owner-badge { color: gold; margin-left: 5px; font-size: 0.8em; }

.kick-btn {
    background: none; border: none; color: #ff4444; 
    cursor: pointer; opacity: 0.7; font-size: 1.2em;
}
.kick-btn:hover { opacity: 1; }

@media (max-width: 768px) {
    .group-sidebar { width: 85%; }
}
/* --- NEW MODERN VOICE UI --- */

/* Pasek statusu wewnątrz konkretnego czatu (na górze) */
.chat-voice-status {
    background: #43b581; /* Discord Green */
    color: white;
    padding: 8px 15px;
    font-size: 0.9em;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideDown 0.3s ease;
    flex-shrink: 0;
}

@keyframes slideDown { from { transform: translateY(-100%); } to { transform: translateY(0); } }

/* Mały pasek na dole sidebara (zawsze widoczny podczas rozmowy) */
.mini-voice-bar {
    background: var(--bg-input);
    border-top: 1px solid var(--border-color);
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: slideUp 0.3s ease;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }

.voice-status-dot {
    width: 8px; height: 8px; background: #43b581; border-radius: 50%; margin-right: 8px;
    box-shadow: 0 0 5px #43b581;
}

.voice-info { display: flex; align-items: center; }
.voice-mini-actions { display: flex; gap: 10px; }

/* Styl wiadomości systemowej "Połączenie zakończone" */
.msg.call-log {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    font-style: italic;
    font-size: 0.85em;
    padding: 5px 15px;
    align-self: center; /* Wyśrodkowanie */
    margin: 10px auto;
    border-radius: 20px;
    max-width: 100%;
}
.msg-group:has(.call-log) { align-items: center; } /* Nowoczesny CSS do centrowania */

/* Powiadomienie o przychodzącym połączeniu (Toast z akcją) */
.toast-call-action {
    display: flex; gap: 10px; margin-top: 5px;
}
.toast-btn {
    flex: 1; padding: 5px; border: none; border-radius: 4px; cursor: pointer; color: white; font-weight: bold;
}
.btn-accept { background: #43b581; }
.btn-decline { background: #ff4444; }
.back-button-img{
    width:35px;
    margin-top:5px;
    filter: invert(var(--icon-invert));
}
/* Mobile adjustments */
@media (max-width: 768px) {
    .mini-voice-bar {
        position: fixed; bottom: 0; left: 0; right: 0;
        z-index: 2000;
        padding-bottom: calc(10px + var(--safe-bottom));
        border-top: 1px solid rgba(0,0,0,0.1);
    }
    #app-wrapper.mobile-chat-active .mini-voice-bar { display: none; } /* Ukryj mały pasek jak jesteśmy w czacie (tam jest górny pasek) */
}
/* --- Add/Replace in public/style.css --- */

/* Date Separator - Discord Style */
.date-separator {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 24px 0 8px 0;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    user-select: none;
}

.date-separator::before,
.date-separator::after {
    content: "";
    flex: 1;
    height: 1px;
    background-color: var(--border-color);
    opacity: 0.5;
}

.date-separator span {
    background: transparent; /* Changed from variable to transparent */
    padding: 0 10px;
    color: var(--text-secondary);
}

/* Optional: Add a subtle timestamp next to the message like Discord usually has on hover, 
   but for now we rely on the 'title' attribute as requested */