/* ============================================================
   T-CHAT — পিক্সেল-পারফেক্ট Telegram Dark Theme
   ============================================================ */

:root {
    --blue: #2AABEE;
    --blue-dark: #229ED9;
    --bg: #17212B;
    --bg2: #0E1621;
    --bg3: #242F3D;
    --bg4: #1C2836;
    --bg5: #202B36;
    --sent: #2B5278;
    --recv: #182533;
    --recv-b: #1E2C3A;
    --txt: #FFFFFF;
    --txt2: #708499;
    --txt3: #465C73;
    --border: #101921;
    --danger: #E53935;
    --ok: #4CAF50;
    --gold: #D4A843;
    --gold-g: rgba(212,168,67,0.12);
    --gold-grad: linear-gradient(135deg,#D4A843,#F5D76E,#D4A843);
    --r: 12px;
    --rs: 8px;
    --sw: 360px;
    --t: 0.15s ease;
}

*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html, body { height:100%; overflow:hidden; }
body {
    font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
    background: var(--bg2);
    color: var(--txt);
    line-height: 1.425;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }
input, textarea { font-family: inherit; outline: none; }
img { display: block; max-width: 100%; }
::selection { background: var(--blue); color: #fff; }

/* স্ক্রলবার — টেলিগ্রামের মতো পাতলা */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }
* { scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.08) transparent; }


/* ============================================================
   AUTH PAGES (লগইন / রেজিস্ট্রেশন)
   ============================================================ */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg2);
    position: relative;
    overflow: hidden;
}
.auth-bg { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.25;
    animation: blobFloat 20s ease-in-out infinite alternate;
}
.b1 { width: 500px; height: 500px; background: var(--blue); top: -20%; left: -10%; }
.b2 { width: 350px; height: 350px; background: #6C5CE7; bottom: -15%; right: -5%; animation-delay: -7s; animation-duration: 25s; }
.b3 { width: 300px; height: 300px; background: #00B894; top: 50%; left: 55%; animation-delay: -13s; animation-duration: 22s; }
@keyframes blobFloat {
    0%   { transform: translate(0, 0) scale(1); }
    33%  { transform: translate(50px, -30px) scale(1.05); }
    66%  { transform: translate(-20px, 40px) scale(0.95); }
    100% { transform: translate(30px, 10px) scale(1.02); }
}

.auth-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 380px;
    margin: 20px;
    padding: 32px 28px;
    background: rgba(23,33,43,0.85);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 14px;
    box-shadow: 0 12px 48px rgba(0,0,0,0.5);
    animation: authIn 0.4s cubic-bezier(0.23,1,0.32,1);
}
@keyframes authIn {
    from { opacity: 0; transform: translateY(16px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}
.auth-logo { text-align: center; margin-bottom: 24px; }
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px; height: 52px;
    border-radius: 14px;
    background: var(--blue);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
    box-shadow: 0 2px 16px rgba(42,171,238,0.25);
}
.auth-logo h1 { font-size: 22px; font-weight: 700; letter-spacing: -0.3px; }
.auth-logo p { font-size: 13px; color: var(--txt2); margin-top: 2px; }

/* ইনপুট ফিল্ড */
.input-group { position: relative; margin-bottom: 16px; }
.input-group input {
    width: 100%;
    padding: 14px 16px;
    padding-right: 46px;
    background: var(--bg3);
    border: 1.5px solid var(--border);
    border-radius: 10px;
    color: var(--txt);
    font-size: 14px;
    outline: none;
    transition: var(--t);
}
.input-group input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(42,171,238,0.12);
}
.input-group label {
    position: absolute;
    left: 14px; top: 50%; transform: translateY(-50%);
    font-size: 13px; color: var(--txt3);
    pointer-events: none;
    transition: var(--t);
    padding: 0 3px;
    background: transparent;
}
.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
    top: 0;
    font-size: 10px;
    color: var(--blue);
    background: var(--bg3);
    border-radius: 4px;
    transform: translateY(-50%);
}
.toggle-pw {
    position: absolute;
    right: 10px; top: 50%; transform: translateY(-50%);
    color: var(--txt3);
    padding: 4px; display: flex;
    transition: color var(--t);
}
.toggle-pw:hover { color: var(--txt2); }

/* পাসওয়ার্ড মিটার */
.pw-strength { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.pw-bar { flex: 1; height: 2px; background: var(--border); border-radius: 2px; overflow: hidden; }
.pw-fill { height: 100%; width: 0; border-radius: 2px; transition: width 0.3s, background 0.3s; }
.pw-strength span { font-size: 10px; color: var(--txt3); min-width: 55px; text-align: right; }

/* বাটন */
.auth-btn {
    width: 100%;
    padding: 11px;
    border-radius: 10px;
    background: var(--blue);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    transition: var(--t);
    position: relative;
    overflow: hidden;
}
.auth-btn:hover { background: var(--blue-dark); }
.auth-btn:active { transform: scale(0.98); }
.spinner {
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.25);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.auth-error {
    padding: 10px 12px;
    margin-bottom: 16px;
    background: rgba(229,57,53,0.08);
    border: 1px solid rgba(229,57,53,0.15);
    border-radius: 8px;
    color: var(--danger);
    font-size: 12px;
    animation: shake 0.35s ease;
}
@keyframes shake {
    0%,100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    50% { transform: translateX(5px); }
    75% { transform: translateX(-3px); }
}
.auth-switch { text-align: center; margin-top: 18px; font-size: 13px; color: var(--txt2); }


/* ============================================================
   LAYOUT
   ============================================================ */
.app {
    display: flex;
    height: 100vh;
    overflow: hidden;
    background: var(--bg2);
}


/* ============================================================
   SIDEBAR — টেলিগ্রাম সাইডবার
   ============================================================ */
.sidebar {
    width: var(--sw);
    min-width: var(--sw);
    background: var(--bg);
    display: flex;
    flex-direction: column;
    z-index: 10;
    transition: transform 0.28s cubic-bezier(0.4, 0,0.2,1);
    /* টেলিগ্রামের মতো সাবটল শ্যাডো — বর্ডার দেখা যায় না */
    border-right: none;
    box-shadow: 1px 0 0 0 rgba(0,0,0,0.15);
}

/* সাইডবার হেডার */
.sb-header {
    padding: 8px 8px 8px 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    height: 48px;
    flex-shrink: 0;
}
.sb-search {
    flex: 1;
    position: relative;
}
.sb-search svg {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--txt3);
    pointer-events: none;
    width: 16px; height: 16px;
}
.sb-search input {
    width: 100%;
    height: 34px;
    padding: 0 12px 0 32px;
    background: var(--bg3);
    border: none;
    border-radius: 8px;
    color: var(--txt);
    font-size: 13px;
}
.sb-search input::placeholder { color: var(--txt3); }
.sb-search input:focus { background: #1a2744; }

/* ফিল্টার ট্যাব — টেলিগ্রামের মতো */
.sb-tabs {
    display: flex;
    padding: 0 6px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.tab-btn {
    flex: 1;
    padding: 10px 6px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--txt3);
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    transition: color var(--t), border-color var(--t);
    text-align: center;
    cursor: pointer;
    white-space: nowrap;
}
.tab-btn:hover { color: var(--txt2); }
.tab-btn.active {
    color: var(--blue);
    border-bottom-color: var(--blue);
}

/* চ্যাট লিস্ট */
.chat-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 4px 6px;
}

/* চ্যাট আইটেম — টেলিগ্রামের মতো */
.chat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 10px;
    border-radius: 10px;
    cursor: pointer;
    transition: background var(--t);
    position: relative;
}
.chat-item:hover { background: var(--bg5); }
.chat-item.active {
    background: var(--sent);
}

.ci-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
}
.ci-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.ci-name {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 4px;
}
.ci-time {
    font-size: 11px;
    color: var(--txt3);
    white-space: nowrap;
    margin-left: 6px;
    flex-shrink: 0;
}
.ci-preview {
    font-size: 13px;
    color: var(--txt2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* অনলাইন ডট */
.online-dot {
    position: absolute;
    bottom: 6px;
    left: 34px;
    width: 10px; height: 10px;
    background: var(--ok);
    border: 2px solid var(--bg);
    border-radius: 50%;
    z-index: 2;
}
.chat-item.active .online-dot { border-color: var(--sent); }

/* আনরিড ব্যাজ */
.unread-badge {
    background: var(--blue);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
    flex-shrink: 0;
}


/* ============================================================
   ব্যাজ — ভেরিফাইড, প্রিমিয়াম, গ্রুপ টাইপ
   ============================================================ */
.v-badge, .p-badge { display: inline-flex; width: 16px; height: 16px; align-items: center; justify-content: center; flex-shrink: 0; }
.v-badge svg, .p-badge svg { width: 16px; height: 16px; }
.g-type {
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1px 5px;
    border-radius: 3px;
    flex-shrink: 0;
}
.g-type.group    { background: rgba(42,171,238,0.12); color: var(--blue); }
.g-type.channel  { background: rgba(76,175,80,0.12); color: var(--ok); }
.g-type.supergroup { background: rgba(108,92,231,0.12); color: #A29BFE; }


/* ============================================================
   AVATAR
   ============================================================ */
.avatar {
    width: 42px; height: 42px;
    min-width: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    color: #fff;
    overflow: hidden;
    flex-shrink: 0;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm { width: 36px; height: 36px; min-width: 36px; font-size: 14px; }
.avatar-xl { width: 80px; height: 80px; min-width: 80px; font-size: 30px; border: 2.5px solid var(--border); }

.icon-btn {
    width: 38px; height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--txt2);
    transition: background var(--t), color var(--t);
    font-size: 18px;
    flex-shrink: 0;
}
.icon-btn:hover { background: var(--bg5); color: var(--txt); }


/* ============================================================
   CHAT AREA
   ============================================================ */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg2);
    position: relative;
    transition: transform 0.28s cubic-bezier(0.4,0,0.2,1);
}

/* ওয়েলকাম স্ক্রীন */
.chat-welcome {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    text-align: center;
    padding: 40px;
}
.welcome-icon {
    width: 80px; height: 80px;
    border-radius: 22px;
    background: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 4px 24px rgba(42,171,238,0.15);
    opacity: 0.85;
}
.chat-welcome h2 { font-size: 17px; font-weight: 600; color: var(--txt2); }
.chat-welcome p { font-size: 13px; color: var(--txt3); max-width: 260px; line-height: 1.5; }


/* ============================================================
   CHAT HEADER
   ============================================================ */
.chat-header {
    padding: 6px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg);
    height: 50px;
    flex-shrink: 0;
    /* টেলিগ্রামের মতো — সাবটল বর্ডার নেই, শুধু একটু শ্যাডো সিপারেটর */
    border-bottom: none;
    box-shadow: 0 0 0 1px var(--border);
}
.back-btn { display: none; }
.ch-info { display: flex; flex-direction: column; min-width: 0; }
.ch-name {
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ch-status { font-size: 12px; color: var(--txt3); }
.ch-status.online { color: var(--ok); }
.ch-actions {
    margin-left: auto;
    display: flex;
    gap: 2px;
}


/* ============================================================
   MESSAGES AREA
   ============================================================ */
.messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

/* ডেট সেপারেটর */
.date-sep {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 8px 0;
    flex-shrink: 0;
}
.date-sep::before,
.date-sep::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}
.date-sep span {
    font-size: 11.5px;
    color: var(--txt2);
    white-space: nowrap;
    padding: 3px 12px;
    background: var(--bg);
    border-radius: 10px;
    font-weight: 500;
}


/* ============================================================
   MESSAGE BUBBLES — টেলিগ্রাম এক্সাক্ট কপি
   ============================================================ */
.message {
    display: flex;
    max-width: 68%;
    margin: 1px 0;
    animation: msgIn 0.18s ease;
}
@keyframes msgIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}
.message.sent {
    align-self: flex-end;
    flex-direction: column;
    align-items: flex-end;
}
.message.received {
    align-self: flex-start;
    flex-direction: column;
    align-items: flex-start;
}

/* বাবল */
.msg-bubble {
    position: relative;
    padding: 6px 9px;
    border-radius: 12px 12px 4px 12px;
    font-size: 14.5px;
    line-height: 1.45;
    word-break: break-word;
    max-width: 100%;
    /* টেলিগ্রামের মতো — কোনো বর্ডার নেই */
    border: none;
}
.message.sent .msg-bubble {
    background: var(--sent);
    color: #fff;
    border-bottom-right-radius: 4px;
    margin-right: 8px;
}
.message.received .msg-bubble {
    background: var(--recv);
    color: var(--txt);
    border-bottom-left-radius: 4px;
    margin-left: 8px;
}

/* ===== বাবল টেল — টেলিগ্রামের সবচেয়ে গুরুত্বপূর্ণ ফিচার ===== */
.message.sent .msg-bubble::after {
    content: '';
    position: absolute;
    right: -8px;
    bottom: 0;
    border-width: 6px 0 6px 8px;
    border-style: solid;
    border-color: transparent transparent transparent var(--sent);
    pointer-events: none;
}
.message.received .msg-bubble::after {
    content: '';
    position: absolute;
    left: -8px;
    bottom: 0;
    border-width: 6px 8px 6px 0;
    border-style: solid;
    border-color: transparent var(--recv) transparent transparent;
    pointer-events: none;
}

/* মেসেজ টেক্সট */
.msg-bubble p { margin: 0; }
.msg-bubble p + p { margin-top: 4px; }

/* রিপ্লাই কোট */
.msg-reply {
    display: flex;
    gap: 6px;
    padding: 5px 7px;
    margin-bottom: 4px;
    border-left: 2px solid var(--blue);
    border-radius: 3px;
    background: rgba(42,171,238,0.06);
    font-size: 12px;
    cursor: pointer;
}
.msg-reply-name { font-weight: 600; color: var(--blue); }
.msg-reply-text {
    color: var(--txt2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

/* ফরওয়ার্ড লেবেল */
.msg-fwd {
    font-size: 11px;
    color: var(--blue);
    margin-bottom: 2px;
    font-style: italic;
    display: flex;
    align-items: center;
    gap: 4px;
}
.msg-fwd::before {
    content: '↩';
    font-style: normal;
}

/* চ্যাট ইমেজ */
.chat-image {
    max-width: 260px;
    max-height: 260px;
    border-radius: 8px;
    cursor: pointer;
    display: block;
    margin-bottom: 3px;
}

/* ফাইল অ্যাটাচমেন্ট */
.file-att {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
    font-size: 12px;
    color: var(--blue);
    transition: background var(--t);
    word-break: break-all;
}
.file-att:hover { background: rgba(255,255,255,0.1); text-decoration: none; }

/* স্টিকার */
.msg-sticker {
    font-size: 56px;
    line-height: 1;
    background: none !important;
    border: none !important;
    padding: 0 !important;
    cursor: pointer;
    transition: transform 0.12s;
    margin: -4px 0;
}
.msg-sticker:hover { transform: scale(1.1); }

/* ভয়েস মেসেজ */
.voice-msg {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 2px 0;
    min-width: 180px;
}
.voice-wave {
    flex: 1;
    height: 26px;
    display: flex;
    align-items: center;
    gap: 1.5px;
}
.v-bar {
    width: 2.5px;
    border-radius: 2px;
    background: rgba(255,255,255,0.18);
    height: 6px;
    transition: height 0.2s;
}
.v-bar.on { background: rgba(255,255,255,0.55); }
.voice-dur {
    font-size: 11px;
    color: var(--txt3);
    white-space: nowrap;
}

/* এডিটেড ইনডিকেটর */
.msg-edited {
    font-size: 10px;
    color: rgba(255,255,255,0.35);
    font-style: italic;
    margin-left: 3px;
}

/* ডিলিটেড মেসেজ */
.msg-deleted {
    font-style: italic;
    color: var(--txt3) !important;
    background: none !important;
    padding: 0 !important;
}
.msg-deleted::before {
    content: none !important;
    border: none !important;
}

/* পিন ইন্ডিকেটর */
.pinned-indicator {
    font-size: 11px;
    color: var(--blue);
    display: flex;
    align-items: center;
    gap: 3px;
    margin-bottom: 3px;
}
.pinned-indicator::before {
    content: '📌';
    font-style: normal;
    font-size: 12px;
}

/* মেসেজ মেটা (সময় + টাইম + চেক) */
.msg-meta {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 1px;
    padding: 0 3px;
}
.msg-time {
    font-size: 11px;
    color: rgba(255,255,255,0.30);
}
.msg-time.recv-time { color: var(--txt3); }
.msg-read {
    font-size: 13px;
    color: rgba(255,255,255,0.25);
}
.msg-read.read { color: rgba(100,220,255,0.55); }


/* ============================================================
   INPUT AREA — টেলিগ্রাম ইনপুট
   ============================================================ */
.input-area {
    padding: 6px 8px 6px 6px;
    display: flex;
    align-items: flex-end;
    gap: 5px;
    background: var(--bg);
    height: 52px;
    flex-shrink: 0;
    box-shadow: 0 -1px 0 0 var(--border);
}
.input-area textarea {
    flex: 1;
    padding: 8px 14px;
    background: var(--bg3);
    border: none;
    border-radius: 20px;
    color: var(--txt);
    font-size: 14.5px;
    line-height: 1.45;
    resize: none;
    max-height: 140px;
    outline: none;
    transition: box-shadow var(--t);
}
.input-area textarea:focus {
    box-shadow: 0 0 0 1.5px rgba(42,171,238,0.15);
}
.input-area textarea::placeholder { color: var(--txt3); }

.send-btn {
    width: 38px; height: 38px;
    border-radius: 50%;
    background: var(--blue);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--t);
    box-shadow: 0 1px 6px rgba(42,171,238,0.2);
}
.send-btn:hover { background: var(--blue-dark); transform: scale(1.05); }
.send-btn:disabled { opacity: 0.3; cursor: not-allowed; transform: none; box-shadow: none; }
.send-btn:active { transform: scale(0.95); }

/* ফাইল প্রিভিউ */
.file-preview {
    position: absolute;
    bottom: 58px;
    left: 52px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 7px 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 220px;
    animation: slideUp 0.2s ease;
    z-index: 5;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.file-preview img { width: 42px; height: 42px; object-fit: cover; border-radius: 6px; }
.fp-info { flex: 1; min-width: 0; }
.fp-info span {
    display: block;
    font-size: 11px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--txt);
}
.fp-info small { font-size: 10px; color: var(--txt3); }
.fp-remove {
    width: 22px; height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    color: var(--txt3);
    transition: var(--t);
    flex-shrink: 0;
}
.fp-remove:hover { background: rgba(229,57,53,0.1); color: var(--danger); }

/* রিপ্লাই বার */
.reply-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 12px;
    background: var(--bg);
    height: 48px;
    border-top: 1px solid var(--border);
    border-left: 3px solid var(--blue);
    flex-shrink: 0;
    animation: slideUp 0.2s ease;
}
.reply-info { flex: 1; min-width: 0; }
.reply-name { font-size: 12px; font-weight: 600; color: var(--blue); }
.reply-text {
    font-size: 12px;
    color: var(--txt2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.reply-close {
    color: var(--txt3);
    font-size: 20px;
    line-height: 1;
    padding: 0 4px;
    flex-shrink: 0;
}
.reply-close:hover { color: var(--txt2); }


/* ============================================================
   STICKER PANEL
   ============================================================ */
.sticker-panel {
    display: none;
    padding: 6px;
    background: var(--bg);
    border-top: 1px solid var(--border);
    max-height: 280px;
    overflow-y: auto;
    overflow-x: hidden;
}
.sticker-panel.open {
    display: block;
    animation: slideUp 0.2s ease;
}
.sp-tabs {
    display: flex;
    gap: 2px;
    padding: 4px 6px 6px;
    overflow-x: auto;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border);
}
.sp-tab {
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 11.5px;
    font-weight: 600;
    color: var(--txt3);
    white-space: nowrap;
    cursor: pointer;
    transition: var(--t);
}
.sp-tab:hover { background: var(--bg5); color: var(--txt2); }
.sp-tab.active { background: var(--blue); color: #fff; }
.sp-tab.prem { color: var(--gold); }
.sp-tab.prem.active { background: var(--gold-grad); color: #000; }
.sp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
    gap: 3px;
    padding: 3px;
}
.sp-item {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.12s;
    position: relative;
}
.sp-item:hover { background: var(--bg5); }
.sp-item.prem-s::after {
    content: '⭐';
    position: absolute;
    top: 2px;
    right: 2px;
    font-size: 9px;
}
.sp-lock {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    padding: 12px 8px;
    border-radius: 8px;
    cursor: pointer;
    color: var(--txt3);
    transition: background 0.12s;
}
.sp-lock:hover { background: var(--bg5); }
.sp-lock small { font-size: 9px; margin-top: 2px; color: var(--gold); }


/* ============================================================
   VOICE RECORDING
   ============================================================ */
.voice-rec {
    display: none;
    align-items: center;
    gap: 10px;
    flex: 1;
}
.voice-rec.open { display: flex; }
.rec-dot {
    width: 8px; height: 8px;
    background: var(--danger);
    border-radius: 50%;
    animation: recPulse 1s ease infinite;
}
@keyframes recPulse {
    0%,100% { opacity: 1; }
    50%     { opacity: 0.3; }
}
.rec-time {
    font-size: 14px;
    font-weight: 600;
    color: var(--danger);
    min-width: 38px;
    font-variant-numeric: tabular-nums;
}
.rec-bars {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 1.5px;
    height: 28px;
}
.rec-bar {
    width: 2.5px;
    border-radius: 2px;
    background: var(--danger);
    animation: recBar 0.4s ease infinite alternate;
}
@keyframes recBar {
    from { height: 4px; }
    to   { height: var(--h); }
}
.rec-cancel {
    color: var(--txt2);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: var(--t);
}
.rec-cancel:hover { background: rgba(229,57,53,0.1); color: var(--danger); }


/* ============================================================
   CONTEXT MENU — রাইট-ক্লিক মেনু
   ============================================================ */
.ctx-menu {
    position: fixed;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
    z-index: 200;
    min-width: 180px;
    padding: 4px 0;
    animation: ctxIn 0.14s ease;
}
@keyframes ctxIn {
    from { opacity: 0; transform: scale(0.96) translateY(-4px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}
.ctx-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    font-size: 13px;
    color: var(--txt);
    cursor: pointer;
    transition: background 0.1s;
}
.ctx-item:hover { background: var(--bg5); }
.ctx-item.danger { color: var(--danger); }
.ctx-item svg { width: 18px; height: 18px; color: var(--txt3); flex-shrink: 0; }
.ctx-item.danger svg { color: var(--danger); }
.ctx-sep { height: 1px; background: var(--border); margin: 3px 0; }


/* ============================================================
   MODAL — মোডাল
   ============================================================ */
.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.15s ease;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
.modal {
    width: 100%;
    max-width: 400px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 6px 32px rgba(0,0,0,0.4);
    overflow: hidden;
    animation: modalIn 0.2s ease;
}
@keyframes modalIn {
    from { opacity: 0; transform: scale(0.96) translateY(6px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
}
.modal-head h3 { font-size: 15px; font-weight: 600; }
.modal-search { padding: 10px 18px; border-bottom: 1px solid var(--border); }
.modal-search input {
    width: 100%;
    padding: 8px 14px;
    background: var(--bg3);
    border: none;
    border-radius: 18px;
    color: var(--txt);
    font-size: 13px;
}
.modal-search input:focus { box-shadow: 0 0 0 1.5px rgba(42,171,238,0.12); }
.modal-body { max-height: 340px; overflow-y: auto; padding: 6px; }
.modal-hint {
    text-align: center;
    padding: 30px 20px;
    color: var(--txt3);
    font-size: 12px;
}
.search-user-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.12s;
}
.search-user-item:hover { background: var(--bg5); }
.no-results {
    text-align: center;
    padding: 24px;
    color: var(--txt3);
    font-size: 12px;
}

/* ইমেজ প্রিভিউ মোডাল */
#imgModal { cursor: zoom-out; }
.img-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0,0,0,0.5);
    color: #fff;
    z-index: 101;
}
.img-close:hover { background: rgba(0,0,0,0.7); }
#imgModalSrc {
    max-width: 92vw;
    max-height: 90vh;
    border-radius: 8px;
    animation: imgZoom 0.2s ease;
}
@keyframes imgZoom {
    from { transform: scale(0.9); opacity: 0; }
    to   { transform: scale(1); opacity: 1; }
}


/* ============================================================
   DRAWER — সাইড মেনু
   ============================================================ */
.drawer {
    width: 280px;
    background: var(--bg);
    height: 100%;
    overflow-y: auto;
    animation: drawerIn 0.25s cubic-bezier(0.4,0,0.2,1);
}
@keyframes drawerIn {
    from { transform: translateX(-100%); }
    to   { transform: translateX(0); }
}
.drawer-profile {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    text-align: center;
}
.drawer-name {
    margin-top: 12px;
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}
.drawer-username { font-size: 13px; color: var(--blue); margin-top: 2px; }
.drawer-bio { font-size: 12px; color: var(--txt2); margin-top: 3px; line-height: 1.4; }
.drawer-nav { padding: 6px 0; }
.drawer-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    font-size: 13px;
    color: var(--txt2);
    transition: background 0.12s;
    text-decoration: none;
}
.drawer-nav a:hover { background: var(--bg5); color: var(--txt); }
.drawer-nav a svg { width: 18px; height: 18px; flex-shrink: 0; }
.drawer-sep { height: 1px; background: var(--border); margin: 4px 16px; }
.danger-link { color: var(--danger) !important; }
.gold-link { color: var(--gold) !important; }
.overlay-bg { flex: 1; }


/* ============================================================
   TOAST
   ============================================================ */
.toast-container {
    position: fixed;
    top: 14px;
    right: 14px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 6px;
    pointer-events: none;
}
.toast {
    padding: 8px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 12px;
    color: var(--txt);
    box-shadow: 0 2px 12px rgba(0,0,0,0.4);
    animation: tIn 0.22s ease, tOut 0.22s ease 2.5s forwards;
    max-width: 280px;
    pointer-events: auto;
}
.toast.error { border-color: rgba(229,57,53,0.2); color: var(--danger); }
.toast.success { border-color: rgba(76,175,80,0.2); color: var(--ok); }
@keyframes tIn  { from { opacity:0; transform:translateX(24px); } to { opacity:1; transform:translateX(0); } }
@keyframes tOut { from { opacity:1; } to { opacity:0; transform:translateX(24px); } }


/* ============================================================
   LINK BOX
   ============================================================ */
.link-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 12px;
}
.link-box input {
    flex: 1;
    background: none;
    border: none;
    color: var(--txt);
    font-size: 12px;
    outline: none;
}
.link-box button {
    color: var(--blue);
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: opacity 0.15s;
}
.link-box button:hover { opacity: 0.7; }


/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 10px;
    color: var(--txt3);
    text-align: center;
    padding: 40px 20px;
}
.empty-state p { font-size: 13px; font-weight: 600; color: var(--txt2); }
.empty-state span { font-size: 12px; }


/* ============================================================
   PROFILE PAGE (u.php)
   ============================================================ */
.prof-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg2);
    position: relative;
    overflow: hidden;
}
.prof-page .auth-bg { z-index: 0; }
.prof-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 380px;
    margin: 20px;
    padding: 32px 28px;
    background: rgba(23,33,43,0.85);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 14px;
    box-shadow: 0 12px 48px rgba(0,0,0,0.5);
    text-align: center;
    animation: authIn 0.4s ease;
}
.p-name {
    font-size: 19px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.p-user { font-size: 13px; color: var(--blue); margin-bottom: 10px; }
.p-bio { font-size: 13px; color: var(--txt2); margin-bottom: 14px; line-height: 1.5; }
.p-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 14px;
    margin-bottom: 20px;
}
.p-status.on  { background: rgba(76,175,80,0.1); color: var(--ok); }
.p-status.off { background: rgba(70,84,153,0.1); color: var(--txt3); }
.p-status .dot {
    width: 7px; height: 7px;
    border-radius: 50%;
}
.p-status.on .dot  { background: var(--ok); }
.p-status.off .dot { background: var(--txt3); }
.chat-btn {
    display: block;
    width: 100%;
    padding: 10px;
    border-radius: 10px;
    background: var(--blue);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    transition: var(--t);
    text-decoration: none;
}
.chat-btn:hover {
    background: var(--blue-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(42,171,238,0.2);
}
.login-hint { margin-top: 14px; font-size: 12px; color: var(--txt3); }


/* ============================================================
   ADMIN PAGE
   ============================================================ */
.admin-page { min-height: 100vh; background: var(--bg2); }
.admin-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 18px;
    background: var(--bg);
    box-shadow: 0 -1px 0 0 var(--border);
}
.admin-top h1 { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.admin-top a { font-size: 12px; }

.admin-body { display: flex; min-height: calc(100vh - 49px); }

.admin-sb {
    width: 210px;
    background: var(--bg);
    border-right: 1px solid var(--border);
    padding: 10px 0;
    flex-shrink: 0;
    box-shadow: 1px 0 0 0 rgba(0,0,0,0.15);
}
.admin-sb a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 18px;
    font-size: 12.5px;
    color: var(--txt2);
    transition: background 0.12s;
    text-decoration: none;
    border-left: 2px solid transparent;
}
.admin-sb a:hover { background: var(--bg5); color: var(--txt); border-left-color: transparent; }
.admin-sb a.active {
    background: var(--sent);
    border-left-color: var(--blue);
    color: var(--blue);
    font-weight: 600;
}
.admin-sb a svg { width: 17px; height: 17px; flex-shrink: 0; }

.admin-main { flex: 1; padding: 20px; overflow-y: auto; }

.a-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px;
    margin-bottom: 16px;
}
.a-card h3 { font-size: 14px; font-weight: 600; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.a-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, min-width(160px, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}
.a-stat {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}
.a-stat .n { font-size: 24px; font-weight: 700; }
.a-stat .l { font-size: 11px; color: var(--txt2); margin-top: 3px; }

.a-table { width: 100%; border-collapse: collapse; }
.a-table th,
.a-table td { padding: 8px 10px; text-align: left; font-size: 12px; border-bottom: 1px solid var(--border); }
.a-table th {
    color: var(--txt3);
    font-weight: 600;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.a-table tr:hover td { background: var(--bg5); }

.badge {
    display: inline-block;
    padding: 2px 7px;
    border-radius: 8px;
    font-size: 10px;
    font-weight: 600;
}
.badge.user     { background: rgba(42,171,238,0.12); color: var(--blue); }
.badge.premium  { background: var(--gold-g); color: var(--gold); }
.badge.admin     { background: rgba(76,175,80,0.12); color: var(--ok); }
.badge.super_admin { background: rgba(229,57,53,0.1); color: var(--danger); }

.ab {
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: var(--t);
}
.ab.blue  { background: var(--blue); color: #fff; }
.ab.red   { background: rgba(229,57,53,0.1); color: var(--danger); }
.ab.green { background: rgba(76,175,80,0.1); color: var(--ok); }
.ab.gold  { background: var(--gold-g); color: var(--gold); }

.a-notice {
    padding: 8px 14px;
    background: rgba(76,175,80,0.08);
    border: 1px solid rgba(76,175,80,0.15);
    border-radius: 8px;
    color: var(--ok);
    font-size: 12px;
    margin-bottom: 14px;
}

@media(max-width:768px) {
    .admin-sb { display: none; }
}
@media(max-width: 380px) {
    .a-stats { grid-template-columns: 1fr; }
    .a-table { font-size: 11px; }
}


/* ============================================================
   PREMIUM PAGE
   ============================================================ */
.prem-page {
    min-height: 100vh;
    background: var(--bg2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    text-align: center;
}
.prem-card {
    max-width: 380px;
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    animation: authIn 0.4s ease;
}
.prem-hero {
    padding: 36px 28px;
    background: linear-gradient(180deg, rgba(212,168,67,0.12), rgba(245,215,110,0.04));
    border-bottom: 1px solid var(--border);
}
.prem-star {
    font-size: 56px;
    margin-bottom: 10px;
    animation: starSpin 4s linear infinite;
}
@keyframes starSpin { to { transform: rotate(360deg); } }
.prem-hero h1 {
    font-size: 22px;
    font-weight: 700;
    background: var(--gold-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.prem-hero p { color: var(--txt2); font-size: 12px; margin-top: 4px; }

.prem-feats { padding: 20px 28px; text-align: left; }
.prem-feat { display: flex; align-items: flex-start; gap: 12px; padding: 8px 0; }
.pf-icon { font-size: 20px; flex-shrink: 0; width: 28px; text-align: center; }
.pf-text h4 { font-size: 13px; font-weight: 600; }
.pf-text p  { font-size: 12px; color: var(--txt2); margin-top: 2px; }

.prem-plans { padding: 0 28px 28px; display: flex; flex-direction: column; gap: 8px; }
.prem-plan {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--t);
}
.prem-plan:hover { border-color: var(--gold); background: var(--gold-g); }
.prem-plan.sel { border-color: var(--gold); box-shadow: 0 0 0 1px var(--gold); }
.pp-info h4 { font-size: 13px; font-weight: 600; }
.pp-info p { font-size: 11px; color: var(--txt3); }
.pp-price { font-size: 17px; font-weight: 700; color: var(--gold); }
.prem-plan input { display: none; }
.prem-act {
    margin: 0 28px 28px;
    width: calc(100% - 56px);
    padding: 10px;
    border-radius: 10px;
    background: var(--gold-grad);
    color: #000;
    font-size: 13px;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: var(--t);
}
.prem-act:hover { filter: brightness(1.1); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(212,168,67,0.25); }

@media(max-width: 380px) {
    .prem-card { margin: 0 12px; border-radius: 14px; }
    .prem-hero { padding: 28px 22px; }
    .prem-feats { padding: 0 22px; }
    .prem-plans { padding: 0 22px; }
    .prem-act { margin: 0 22px 22px; }
}


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .sidebar {
        position: absolute;
        width: 100%;
        min-width: 100%;
        height: 100%;
        transform: translateX(0);
    }
    .chat-area {
        position: absolute;
        width: 100%;
        height: 100%;
        transform: translateX(100%);
    }
    .chat-area.active { transform: translateX(0); }
    .sidebar.hidden { transform: translateX(-100%); }
    .back-btn { display: flex; }
    .message { max-width: 85%; }
    .chat-image { max-width: 240px; max-height: 240px; }
}

@media (max-width: 380px) {
    .sidebar { width: 100%; min-width: 100%; }
    .messages { padding: 6px 8px; }
    .input-area { padding: 5px 6px; gap: 4px; }
    .sb-header { padding: 6px 6px 6px 8px; }
    .chat-header { padding: 4px 12px; height: 44px; gap: 8px; }
    .ci-name { font-size: 13px; }
    .ci-time { font-size: 10px; }
    .ci-preview { font-size: 12px; }
    .msg-bubble { font-size: 13.5px; padding: 5px 8px; }
    .auth-card { margin: 12px; padding: 28px 22px; border-radius: 12px; }
    .logo-icon { width: 44px; height: 44px; font-size: 16px; margin-bottom: 10px; border-radius: 12px; }
    .auth-logo h1 { font-size: 20px; }
    .welcome-icon { width: 64px; height: 64px; font-size: 26px; border-radius: 18px; }
    .chat-welcome h2 { font-size: 15px; }
    .chat-welcome p { font-size: 12px; }
    .drawer { width: 100%; }
    .overlay-bg { flex: 1; }
    .a-stats { grid-template-columns: 1fr; }
}

/* হিডেন ক্লাস */
.hidden { display: none !important; }