:root{
  --bg:#e8e9ee; --bg-elev:#FFFFFF; --card:#FFFFFF; --border:rgba(15,15,20,0.08);
  --text:#0B0B0E; --text-dim:#5B5F6B; --text-faint:#8A8E99;
  --primary:#3B82F6; --primary-dim:#2563EB; --accent:#10B981;
  --ring: rgba(37,99,235,0.14);
  --shadow-sm: 0 1px 2px rgba(15,15,20,0.04), 0 1px 1px rgba(15,15,20,0.03);
  --shadow-md: 0 4px 16px rgba(15,15,20,0.06), 0 1px 2px rgba(15,15,20,0.04);
  --shadow-lg: 0 20px 40px -12px rgba(15,15,20,0.14), 0 4px 12px rgba(15,15,20,0.06);
  --amber:#D97706; --red:#DC2626; --danger:#DC2626;
  --sidebar:#f1f2f6; --sidebar-2:#ffffff; --chat-bg:#f7f8fb; --input-bg:#ffffff;
  --ease: cubic-bezier(.16,1,.3,1);
  --radius:14px; --font-scale:1;
}
html.dark{
  --bg:#08090c; --bg-elev:#101114; --card:#15161a; --border:rgba(255,255,255,0.08);
  --text:#F5F5F7; --text-dim:#A3A3AD; --text-faint:#6B6B76;
  --primary:#3B82F6; --primary-dim:#2563EB; --accent:#34D399;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.45);
  --shadow-lg: 0 20px 50px -12px rgba(0,0,0,0.6);
  --amber:#F59E0B; --red:#F87171;
  --sidebar:#0c0d10; --sidebar-2:#131418; --chat-bg:#0d0e12; --input-bg:#15161a;
}
*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  -webkit-font-smoothing:antialiased; font-size:calc(14px * var(--font-scale));
  transition:background .4s var(--ease), color .4s var(--ease);
  overflow:hidden;
}
h1,h2,h3,h4{font-family:'Inter Tight','Inter',sans-serif; letter-spacing:-0.02em; margin:0;}
p{margin:0;}
a{text-decoration:none; color:inherit;}
button{font-family:inherit; cursor:pointer;}
input,select,textarea{font-family:inherit; font-size:inherit;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--border); border-radius:20px;}
.hidden{display:none !important;}
.mono{font-family:'JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;}

/* ---------- BUTTONS ---------- */
.btn{display:inline-flex; align-items:center; justify-content:center; gap:8px; height:42px; padding:0 18px; border-radius:12px; font-weight:600; font-size:14px; border:1px solid transparent; transition:transform .18s var(--ease), box-shadow .25s var(--ease), background .2s ease, border-color .2s ease, opacity .2s; white-space:nowrap;}
.btn:active{transform:scale(0.96);}
.btn:disabled{opacity:.55; cursor:not-allowed; transform:none;}
.btn-primary{background:linear-gradient(180deg, var(--primary), var(--primary-dim)); color:#fff; box-shadow:0 1px 0 rgba(255,255,255,0.15) inset, 0 8px 18px -6px rgba(37,99,235,0.5);}
.btn-primary:hover{transform:translateY(-1px); box-shadow:0 1px 0 rgba(255,255,255,0.2) inset, 0 12px 24px -6px rgba(37,99,235,0.6);}
.btn-secondary{background:var(--bg-elev); color:var(--text); border-color:var(--border); box-shadow:var(--shadow-sm);}
.btn-secondary:hover{border-color:color-mix(in srgb, var(--text) 22%, var(--border)); transform:translateY(-1px);}
.btn-ghost{background:transparent; color:var(--text-dim); height:auto; padding:6px 8px;}
.btn-ghost:hover{color:var(--text);}
.btn-danger{background:var(--red); color:#fff;}
.btn-sm{height:34px; padding:0 14px; font-size:13px; border-radius:10px;}
.btn-block{width:100%;}
.btn-icon{width:38px; height:38px; padding:0; border-radius:12px;}

/* ---------- FORM ---------- */
.field{margin-bottom:16px;}
.field label{display:block; font-size:12.5px; font-weight:600; color:var(--text-dim); margin-bottom:7px;}
.input, textarea.input, select.input{width:100%; background:var(--bg-elev); border:1px solid var(--border); border-radius:11px; padding:11px 14px; color:var(--text); outline:none; transition:border-color .2s, box-shadow .2s;}
.input:focus{border-color:var(--primary); box-shadow:0 0 0 3px var(--ring, rgba(59,130,246,.18));}
textarea.input{resize:vertical; min-height:70px;}
.error-text{color:var(--red); font-size:13px; margin-top:8px;}

/* ---------- CARD ---------- */
.card{background:var(--card); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow-sm);}

/* ---------- AUTH SCREEN ---------- */
#auth-screen{height:100%; display:flex; align-items:center; justify-content:center; background:
  radial-gradient(600px circle at 15% 10%, color-mix(in srgb, var(--primary) 16%, transparent), transparent 60%),
  radial-gradient(600px circle at 85% 90%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 60%), var(--bg);
  overflow-y:auto; padding:32px 16px;}
.auth-box{width:400px; max-width:100%; padding:36px; animation:fadeUp .5s var(--ease) both;}
@keyframes fadeUp{from{opacity:0; transform:translateY(16px);}to{opacity:1; transform:translateY(0);}}
.auth-logo{display:flex; align-items:center; gap:10px; font-weight:800; font-size:20px; margin-bottom:6px;}
.auth-logo .dot{width:34px; height:34px; border-radius:10px; background:linear-gradient(135deg,var(--primary),var(--accent)); display:flex; align-items:center; justify-content:center; color:#fff; font-weight:800;}
.auth-box h2{font-size:24px; margin-bottom:6px;}
.auth-box .sub{color:var(--text-dim); font-size:14px; margin-bottom:26px;}
.auth-switch{text-align:center; margin-top:18px; font-size:13.5px; color:var(--text-dim);}
.auth-switch a{color:var(--primary); font-weight:600; cursor:pointer;}

/* ---------- APP SHELL ---------- */
#app-shell{height:100%; display:flex;}
.rail{width:74px; background:var(--sidebar); display:flex; flex-direction:column; align-items:center; padding:12px 0; gap:8px; flex-shrink:0; overflow-y:auto; border-right:1px solid var(--border);}
.rail-item{width:48px; height:48px; border-radius:16px; background:var(--sidebar-2); display:flex; align-items:center; justify-content:center; color:var(--text-dim); font-weight:700; font-size:16px; cursor:pointer; transition:all .2s var(--ease); position:relative; overflow:hidden; flex-shrink:0;}
.rail-item img{width:100%;height:100%;object-fit:cover;}
.rail-item:hover, .rail-item.active{border-radius:14px; color:#fff;}
.rail-item.active{background:linear-gradient(135deg,var(--primary),var(--primary-dim));}
.rail-item.active::before{content:""; position:absolute; left:-12px; width:6px; height:26px; border-radius:6px; background:#fff;}
.rail-item.home{background:linear-gradient(135deg,var(--primary),var(--accent)); color:#fff;}
.rail-sep{width:32px; height:2px; background:var(--border); border-radius:2px; margin:2px 0;}
.rail-add{background:transparent; border:2px dashed var(--border); color:var(--text-dim);}
.rail-add:hover{border-color:var(--accent); color:var(--accent);}

.sidebar{width:260px; background:var(--sidebar-2); display:flex; flex-direction:column; flex-shrink:0; border-right:1px solid var(--border);}
.sidebar-header{padding:16px; border-bottom:1px solid var(--border); font-weight:700; display:flex; align-items:center; justify-content:space-between; box-shadow:var(--shadow-sm);}
.sidebar-body{flex:1; overflow-y:auto; padding:10px;}
.dm-item{display:flex; align-items:center; gap:10px; padding:9px 10px; border-radius:12px; cursor:pointer; transition:background .15s; color:var(--text-dim); margin-bottom:2px;}
.dm-item:hover{background:var(--border);}
.dm-item.active{background:var(--primary); color:#fff;}
.dm-item .name{font-size:14px; font-weight:600; color:inherit; flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
.section-label{font-size:11px; font-weight:700; text-transform:uppercase; color:var(--text-faint); letter-spacing:.05em; padding:14px 10px 6px;}
.category{font-size:11.5px; font-weight:700; text-transform:uppercase; color:var(--text-faint); letter-spacing:.04em; padding:12px 8px 4px; display:flex; align-items:center; justify-content:space-between; cursor:pointer;}
.channel-item{display:flex; align-items:center; gap:8px; padding:7px 10px; border-radius:10px; cursor:pointer; color:var(--text-dim); font-size:14.5px; font-weight:500; margin-bottom:1px;}
.channel-item:hover{background:var(--border); color:var(--text);}
.channel-item.active{background:color-mix(in srgb, var(--primary) 16%, transparent); color:var(--text);}
.channel-item .hash{opacity:.6; font-weight:700;}
.channel-tag{font-size:10px; padding:1px 6px; border-radius:6px; font-weight:700; margin-left:auto;}

.user-panel{padding:10px 12px; border-top:1px solid var(--border); display:flex; align-items:center; gap:8px; background:var(--sidebar);}
.avatar{border-radius:50%; object-fit:cover; background:linear-gradient(135deg,var(--primary),var(--accent)); flex-shrink:0; display:flex; align-items:center; justify-content:center; color:#fff; font-weight:700; overflow:hidden;}
.avatar-wrap{position:relative; flex-shrink:0;}
.status-dot{position:absolute; bottom:-1px; right:-1px; width:11px; height:11px; border-radius:50%; border:2px solid var(--sidebar); background:#8A8E99;}
.status-dot.online{background:#22C55E;} .status-dot.idle{background:#F59E0B;} .status-dot.dnd{background:#EF4444;} .status-dot.offline, .status-dot.invisible{background:#6B6B76;}

.main{
    display:flex;
    flex-direction:column;
    flex:1;
    min-width:0;
    min-height:0;
    height:100vh;
    overflow:hidden;
}
#chat-container{
    display:flex;
    flex-direction:column;
    flex:1;
    min-height:0;
    overflow:hidden;
}
.chat-header{height:56px; border-bottom:1px solid var(--border); display:flex; align-items:center; padding:0 16px; gap:10px; flex-shrink:0; background:var(--bg-elev);}
.chat-header .title{font-weight:700; display:flex; align-items:center; gap:8px;}
.chat-header .topic{color:var(--text-faint); font-size:13px; margin-left:8px; padding-left:12px; border-left:1px solid var(--border); overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
.chat-header .spacer{flex:1;}
.chat-scroll{
    flex:1;
    overflow-y:auto;
    min-height:0;
    padding:20px;
}
.msg-row{display:flex; gap:12px; padding:6px 8px; border-radius:10px; position:relative; transition:background .12s;}
.msg-row:hover{background:color-mix(in srgb, var(--text) 3%, transparent);}
.msg-row:hover .msg-actions{opacity:1;}
.msg-row .avatar{width:38px;height:38px; margin-top:2px;}
.msg-body{flex:1; min-width:0;}
.msg-head{display:flex; align-items:baseline; gap:8px;}
.msg-author{font-weight:700; font-size:14.5px;}
.msg-time{font-size:11.5px; color:var(--text-faint);}
.msg-whisper-badge{font-size:10.5px; font-weight:700; color:var(--accent); background:color-mix(in srgb, var(--accent) 14%, transparent); padding:1px 7px; border-radius:6px;}
.msg-content{font-size:14.5px; line-height:1.5; word-wrap:break-word; white-space:pre-wrap;}
.msg-content code{background:var(--bg-elev); padding:1px 6px; border-radius:5px; font-family:'JetBrains Mono',ui-monospace,monospace; font-size:13px; border:1px solid var(--border);}
.msg-content pre{background:var(--bg-elev); border:1px solid var(--border); padding:10px 12px; border-radius:10px; overflow-x:auto; margin:6px 0;}
.msg-content pre code{border:none; padding:0; background:none;}
.msg-edited{font-size:11px; color:var(--text-faint);}
.msg-reply{display:flex; align-items:center; gap:6px; font-size:12.5px; color:var(--text-faint); margin-bottom:2px; padding-left:10px; border-left:2px solid var(--border);}
.msg-actions{position:absolute; top:-16px; right:10px; display:flex; background:var(--card); border:1px solid var(--border); border-radius:10px; box-shadow:var(--shadow-md); opacity:0; transition:opacity .15s; overflow:hidden;}
.msg-actions button{width:32px; height:32px; display:flex; align-items:center; justify-content:center; background:none; border:none; color:var(--text-dim);}
.msg-actions button:hover{background:var(--border); color:var(--text);}
.msg-attachments{display:flex; flex-wrap:wrap; gap:8px; margin-top:6px;}
.msg-attachments img, .msg-attachments video{max-width:320px; max-height:280px; border-radius:12px; border:1px solid var(--border); display:block;}
.msg-file{display:flex; align-items:center; gap:10px; background:var(--card); border:1px solid var(--border); padding:10px 14px; border-radius:12px; font-size:13.5px;}
.msg-reactions{display:flex; flex-wrap:wrap; gap:6px; margin-top:6px;}
.reaction-pill{display:flex; align-items:center; gap:5px; background:var(--card); border:1px solid var(--border); border-radius:10px; padding:2px 9px; font-size:13px; cursor:pointer; transition:all .15s;}
.reaction-pill.mine{border-color:var(--primary); background:color-mix(in srgb, var(--primary) 14%, transparent);}
.reaction-pill:hover{border-color:var(--primary);}
.pinned-marker{font-size:11px; color:var(--amber); font-weight:700; display:flex; align-items:center; gap:4px; margin-bottom:2px;}
.date-sep{text-align:center; font-size:11.5px; color:var(--text-faint); margin:16px 0 8px; position:relative;}
.date-sep::before, .date-sep::after{content:""; position:absolute; top:50%; width:40%; height:1px; background:var(--border);}
.date-sep::before{left:0;} .date-sep::after{right:0;}
.typing-indicator{padding:0 18px 4px; font-size:12.5px; color:var(--text-faint); height:18px;}

.composer{
    flex-shrink:0;
    position:relative;
    z-index:10;
}
.composer-box{
    background:var(--input-bg);
    border:1px solid var(--border);
    border-radius:16px;
    padding:8px 10px;
    display:flex;
    align-items:flex-end;
    gap:8px;
    box-shadow:var(--shadow-sm);
    transition:border-color .2s;
    width:100%;
    max-width:800px; /* Change this value to make it wider/narrower */
    margin:0 auto;
}

.composer-box:focus-within{
    border-color:var(--primary);
}

.composer-box textarea{
    flex:1;
    border:none;
    background:none;
    outline:none;
    resize:none;
    max-height:180px;
    padding:8px 6px;
    color:var(--text);
    line-height:1.4;
}

.composer-attach{
    display:flex;
    gap:6px;
    padding:0 6px 6px;
    flex-wrap:wrap;
}
.attach-chip{display:flex; align-items:center; gap:6px; background:var(--card); border:1px solid var(--border); border-radius:10px; padding:5px 10px; font-size:12.5px;}
.attach-chip button{background:none;border:none;color:var(--text-faint);}
.dropzone-overlay{position:absolute; inset:0; background:color-mix(in srgb, var(--primary) 12%, transparent); border:3px dashed var(--primary); border-radius:16px; display:flex; align-items:center; justify-content:center; font-weight:700; color:var(--primary); z-index:5; pointer-events:none;}

.member-list{width:240px; background:var(--sidebar-2); border-left:1px solid var(--border); flex-shrink:0; overflow-y:auto; padding:14px 12px;}
.member-item{display:flex; align-items:center; gap:9px; padding:6px 8px; border-radius:10px; cursor:pointer; margin-bottom:1px;}
.member-item:hover{background:var(--border);}
.member-item .avatar{width:32px;height:32px;}
.member-item .name{font-size:13.5px; font-weight:600;}
.member-item .role-name{font-size:11px; color:var(--text-faint);}

/* icon buttons */
.icon-btn{width:34px; height:34px; display:flex; align-items:center; justify-content:center; border-radius:10px; color:var(--text-dim); background:transparent; border:none; transition:all .15s;}
.icon-btn:hover{background:var(--border); color:var(--text);}
.icon-btn svg{width:19px;height:19px;}

/* modal */
.modal-backdrop{position:fixed; inset:0; background:rgba(0,0,0,.55); display:flex; align-items:center; justify-content:center; z-index:200; padding:20px; animation:fadeIn .2s;}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
.modal{background:var(--card); border:1px solid var(--border); border-radius:18px; box-shadow:var(--shadow-lg); width:480px; max-width:100%; max-height:88vh; overflow-y:auto; padding:26px; animation:fadeUp .25s var(--ease);}
.modal.wide{width:820px;}
.modal h3{font-size:19px; margin-bottom:18px;}
.modal-close{position:absolute; top:18px; right:18px;}
.modal-actions{display:flex; justify-content:flex-end; gap:10px; margin-top:20px;}

/* settings */
#settings-view{position:fixed; inset:0; background:var(--bg); z-index:150; display:flex;}
.settings-nav{width:240px; background:var(--sidebar-2); padding:24px 12px; overflow-y:auto; border-right:1px solid var(--border);}
.settings-nav h4{font-size:11px; text-transform:uppercase; color:var(--text-faint); padding:12px 10px 6px;}
.settings-nav .item{padding:9px 12px; border-radius:10px; cursor:pointer; color:var(--text-dim); font-weight:600; font-size:14px; margin-bottom:2px;}
.settings-nav .item:hover{background:var(--border); color:var(--text);}
.settings-nav .item.active{background:var(--primary); color:#fff;}
.settings-content{flex:1; overflow-y:auto; padding:40px 48px; max-width:740px;}
.settings-content h2{font-size:22px; margin-bottom:20px;}
.settings-section{margin-bottom:28px; padding-bottom:24px; border-bottom:1px solid var(--border);}
.settings-close{position:fixed; top:24px; right:40px; z-index:5;}
.toggle-row{display:flex; align-items:center; justify-content:space-between; padding:12px 0;}
.toggle{width:44px; height:26px; border-radius:20px; background:var(--border); position:relative; cursor:pointer; transition:background .2s; flex-shrink:0;}
.toggle.on{background:var(--primary);}
.toggle::after{content:""; position:absolute; top:3px; left:3px; width:20px; height:20px; border-radius:50%; background:#fff; transition:transform .2s;}
.toggle.on::after{transform:translateX(18px);}
.theme-options{display:flex; gap:14px;}
.theme-card{flex:1; border:2px solid var(--border); border-radius:14px; padding:14px; cursor:pointer; text-align:center; font-weight:600; font-size:13px;}
.theme-card.selected{border-color:var(--primary);}
.theme-preview{height:60px; border-radius:8px; margin-bottom:8px;}
.theme-preview.dark-preview{background:linear-gradient(180deg,#101114,#08090c);}
.theme-preview.light-preview{background:linear-gradient(180deg,#fff,#e8e9ee); border:1px solid var(--border);}

/* toasts */
#toast-container{position:fixed; bottom:20px; right:20px; z-index:300; display:flex; flex-direction:column; gap:10px;}
.toast{background:var(--card); border:1px solid var(--border); box-shadow:var(--shadow-lg); border-radius:12px; padding:12px 16px; font-size:13.5px; font-weight:600; max-width:320px; animation:fadeUp .25s var(--ease);}
.toast.error{border-color:var(--red); color:var(--red);}
.toast.success{border-color:var(--accent);}

/* empty state */
.empty-state{flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center; color:var(--text-faint); gap:10px; text-align:center; padding:20px;}
.empty-state .big{font-size:44px;}

.upload-spinner{
    width:14px;
    height:14px;
    border:2px solid rgba(255,255,255,.25);
    border-top-color:#fff;
    border-radius:50%;
    display:inline-block;
    animation:spin 1s linear infinite;
    margin-right:6px;
    flex-shrink:0;
}

@keyframes spin{
    to{transform:rotate(360deg);}
}

.notification-btn {
  position: relative;
}

.notification-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: red;
  color: white;
  font-size: 10px;
  min-width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* mobile */
.mobile-topbar{display:none; height:52px; align-items:center; padding:0 10px; gap:8px; border-bottom:1px solid var(--border); background:var(--bg-elev); flex-shrink:0;}
@media(max-width:900px){
  .rail{position:fixed; left:0; top:0; bottom:0; z-index:60; transform:translateX(-100%); transition:transform .25s var(--ease);}
  .sidebar{position:fixed; left:74px; top:0; bottom:0; z-index:59; transform:translateX(-120%); transition:transform .25s var(--ease); width:78vw; max-width:300px;}
  .rail.open, .sidebar.open{transform:translateX(0);}
  .member-list{position:fixed; right:0; top:0; bottom:0; z-index:59; transform:translateX(100%); transition:transform .25s var(--ease); width:78vw; max-width:280px;}
  .member-list.open{transform:translateX(0);}
  .mobile-topbar{display:flex;}
  .mobile-overlay{position:fixed; inset:0; background:rgba(0,0,0,.5); z-index:55;}
  .settings-nav{position:fixed; left:0; top:0; bottom:0; z-index:5; transform:translateX(-100%); transition:transform .25s; width:78vw;}
  .settings-nav.open{transform:translateX(0);}
  .settings-content{padding:70px 20px 40px;}
  .auth-box{padding:26px;}
}