/* ============================================================
   ICE - visual identity: glacial theme, glass panels, dark by
   default with a real light mode via [data-theme="light"].
   ============================================================ */

:root{
  --ice-bg:        #0b1220;
  --ice-bg-2:      #0f1830;
  --ice-panel:     rgba(255,255,255,0.04);
  --ice-border:    rgba(255,255,255,0.09);
  --ice-cyan:      #5eead4;
  --ice-cyan-dim:  #2dd4bf;
  --ice-blue:      #60a5fa;
  --ice-text:      #e6edf7;
  --ice-text-dim:  #9aa7bd;
  --ice-danger:    #f87171;
  --radius: 14px;
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
}

html[data-theme="light"]{
  --ice-bg:        #f4f7fb;
  --ice-bg-2:      #ffffff;
  --ice-panel:     rgba(15,30,60,0.04);
  --ice-border:    rgba(15,30,60,0.10);
  --ice-text:      #10182b;
  --ice-text-dim:  #5b6478;
  --ice-cyan:      #0d9488;
  --ice-cyan-dim:  #0f766e;
  --ice-blue:      #2563eb;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(94,234,212,0.08), transparent),
    radial-gradient(900px 500px at 100% 0%, rgba(96,165,250,0.10), transparent),
    var(--ice-bg);
  color:var(--ice-text);
  font-family:var(--font-body);
  line-height:1.5;
  min-height:100%;
  transition:background .2s, color .2s;
}

h1,h2,h3,.ice-brand{ font-family:var(--font-display); letter-spacing:-0.01em; }
a{ color:var(--ice-cyan); text-decoration:none; }
a:hover{ text-decoration:underline; }

.ice-shell{ display:flex; min-height:100vh; }
.ice-sidebar{ width:250px; flex-shrink:0; background:var(--ice-bg-2); border-right:1px solid var(--ice-border); padding:20px 14px; display:flex; flex-direction:column; gap:6px; }
.ice-brand{ font-size:1.3rem; font-weight:700; display:flex; align-items:center; gap:8px; margin-bottom:18px; padding:0 6px; }
.ice-brand .dot{ width:10px; height:10px; border-radius:50%; background:var(--ice-cyan); box-shadow:0 0 12px var(--ice-cyan); }

.ice-nav-link{ display:flex; align-items:center; gap:10px; padding:10px 12px; border-radius:10px; color:var(--ice-text-dim); font-size:0.92rem; font-weight:500; transition:background .15s, color .15s; }
.ice-nav-link:hover, .ice-nav-link.active{ background:var(--ice-panel); color:var(--ice-text); text-decoration:none; }

.ice-topbar{ display:flex; align-items:center; justify-content:flex-end; gap:14px; padding:10px 34px 0; }
.ice-icon-btn{ background:var(--ice-panel); border:1px solid var(--ice-border); color:var(--ice-text); width:36px; height:36px; border-radius:10px; cursor:pointer; font-size:1rem; display:flex; align-items:center; justify-content:center; position:relative; }
.ice-badge-dot{ position:absolute; top:-4px; right:-4px; background:var(--ice-danger); color:#fff; font-size:0.65rem; border-radius:99px; padding:1px 5px; }

.ice-main{ flex:1; padding:10px 34px 34px; max-width:1200px; }

.ice-card{ background:var(--ice-panel); border:1px solid var(--ice-border); border-radius:var(--radius); padding:22px; backdrop-filter: blur(10px); }

.ice-btn{ display:inline-flex; align-items:center; justify-content:center; gap:8px; background:linear-gradient(135deg, var(--ice-cyan-dim), var(--ice-blue)); color:#04101a; font-weight:600; font-size:0.92rem; border:none; border-radius:10px; padding:10px 18px; cursor:pointer; transition:transform .12s, box-shadow .12s; text-decoration:none; }
.ice-btn:hover{ transform:translateY(-1px); box-shadow:0 6px 18px rgba(94,234,212,0.18); text-decoration:none; }
.ice-btn-ghost{ background:transparent; color:var(--ice-text); border:1px solid var(--ice-border); }
.ice-btn-sm{ padding:6px 12px; font-size:0.82rem; }

.ice-input{ width:100%; padding:11px 13px; border-radius:10px; background:rgba(127,127,127,0.06); border:1px solid var(--ice-border); color:var(--ice-text); font-size:0.95rem; margin-bottom:14px; }
.ice-input:focus{ outline:2px solid var(--ice-cyan-dim); outline-offset:1px; }
.ice-label{ font-size:0.82rem; color:var(--ice-text-dim); margin-bottom:6px; display:block; }
.ice-error{ background:rgba(248,113,113,0.1); border:1px solid rgba(248,113,113,0.3); color:#f87171; padding:10px 14px; border-radius:10px; margin-bottom:14px; font-size:0.88rem; }
.ice-success{ background:rgba(94,234,212,0.1); border:1px solid rgba(94,234,212,0.3); color:var(--ice-cyan); padding:10px 14px; border-radius:10px; margin-bottom:14px; font-size:0.88rem; }

.ice-auth-wrap{ min-height:100vh; display:flex; align-items:center; justify-content:center; padding:20px; }
.ice-auth-card{ width:100%; max-width:400px; }

.ice-stats{ display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:16px; margin-bottom:24px; }
.ice-stat-num{ font-family:var(--font-display); font-size:2rem; font-weight:700; color:var(--ice-cyan); }
.ice-stat-label{ color:var(--ice-text-dim); font-size:0.82rem; }

.ice-chat-shell{ display:flex; height:calc(100vh - 100px); }
.ice-chat-list{ width:250px; flex-shrink:0; border-right:1px solid var(--ice-border); overflow-y:auto; padding:14px 10px; background:rgba(0,0,0,0.08); }
html[data-theme="light"] .ice-chat-list{ background:rgba(15,30,60,0.02); }

.ice-folder-label{ display:flex; align-items:center; gap:6px; font-size:0.7rem; text-transform:uppercase; letter-spacing:0.06em; color:var(--ice-text-dim); margin:16px 8px 6px; font-weight:600; }
.ice-folder-label::before{ content:"📁"; font-size:0.75rem; opacity:0.7; }
.ice-folder-label:first-of-type{ margin-top:2px; }

.ice-chat-item{ position:relative; padding:10px 12px 10px 16px; border-radius:10px; font-size:0.87rem; color:var(--ice-text-dim); cursor:pointer; margin-bottom:3px; display:flex; align-items:center; gap:8px; transition:background .15s, color .15s, transform .1s; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.ice-chat-item::before{ content:"💬"; font-size:0.78rem; opacity:0.55; flex-shrink:0; }
.ice-chat-item span{ overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.ice-chat-item:hover{ background:var(--ice-panel); color:var(--ice-text); transform:translateX(2px); }
.ice-chat-item.active{ background:var(--ice-panel); color:var(--ice-text); font-weight:600; }
.ice-chat-item.active::after{ content:""; position:absolute; left:0; top:8px; bottom:8px; width:3px; border-radius:3px; background:linear-gradient(180deg, var(--ice-cyan), var(--ice-blue)); }

.ice-chat-main{ flex:1; display:flex; flex-direction:column; min-width:0; }
.ice-chat-toolbar{ display:flex; gap:8px; padding:10px 24px 0; align-items:center; }

.ice-messages{ flex:1; display:flex; flex-direction:column; overflow-y:auto; padding:28px 24px; gap:18px; scroll-behavior:smooth; }

.ice-empty-state{ margin:auto; text-align:center; color:var(--ice-text-dim); }
.ice-empty-orb{ width:64px; height:64px; margin:0 auto 14px; border-radius:50%; background:radial-gradient(circle at 35% 30%, var(--ice-cyan), var(--ice-blue) 70%); box-shadow:0 0 40px rgba(94,234,212,0.35); animation:ice-pulse 2.6s ease-in-out infinite; }
@keyframes ice-pulse{ 0%,100%{ transform:scale(1); opacity:0.9; } 50%{ transform:scale(1.08); opacity:1; } }

.ice-msg-row{ display:flex; gap:10px; align-items:flex-end; width:fit-content; max-width:78%; animation:ice-msg-in .28s cubic-bezier(.2,.8,.2,1); }
.ice-msg-row.user{ align-self:flex-end; flex-direction:row-reverse; margin-left:auto; }
.ice-msg-row.assistant{ align-self:flex-start; margin-right:auto; }
@keyframes ice-msg-in{ from{ opacity:0; transform:translateY(10px) scale(.98); } to{ opacity:1; transform:translateY(0) scale(1); } }

.ice-avatar{ flex:0 0 30px; width:30px; height:30px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:0.9rem; }
.ice-avatar.assistant{ background:linear-gradient(135deg, var(--ice-cyan-dim), var(--ice-blue)); box-shadow:0 0 14px rgba(94,234,212,0.35); }
.ice-avatar.assistant::before{ content:"❄"; color:#04101a; font-weight:700; line-height:1; }
.ice-avatar.user{ background:var(--ice-panel); border:1px solid var(--ice-border); }
.ice-avatar.user::before{ content:"you"; font-size:0.6rem; color:var(--ice-text-dim); text-transform:uppercase; letter-spacing:0.03em; line-height:1; }

.ice-msg{ position:relative; padding:12px 16px; border-radius:16px; font-size:0.94rem; line-height:1.5; width:fit-content; max-width:100%; }
.ice-msg-text{ white-space:pre-wrap; word-break:break-word; }
.ice-msg.user{ background:linear-gradient(135deg, var(--ice-cyan-dim), var(--ice-blue)); color:#04101a; border-bottom-right-radius:4px; }
.ice-msg.assistant{ background:var(--ice-panel); border:1px solid var(--ice-border); border-bottom-left-radius:4px; }

.ice-copy-btn{ position:absolute; top:6px; right:8px; background:transparent; border:none; color:var(--ice-text-dim); font-size:0.85rem; cursor:pointer; opacity:0; transition:opacity .15s; }
.ice-msg.assistant:hover .ice-copy-btn{ opacity:0.7; }
.ice-copy-btn:hover{ opacity:1 !important; color:var(--ice-cyan); }

.ice-typing-dots{ display:inline-flex; gap:4px; align-items:center; padding:2px 0; }
.ice-typing-dots span{ width:6px; height:6px; border-radius:50%; background:var(--ice-text-dim); animation:ice-typing 1.2s infinite ease-in-out; }
.ice-typing-dots span:nth-child(2){ animation-delay:0.15s; }
.ice-typing-dots span:nth-child(3){ animation-delay:0.3s; }
@keyframes ice-typing{ 0%,60%,100%{ transform:translateY(0); opacity:0.5; } 30%{ transform:translateY(-4px); opacity:1; } }

.ice-chat-input-row{ padding:14px 24px 20px; }
.ice-input-pill{ display:flex; align-items:center; gap:6px; background:var(--ice-bg-2); border:1px solid var(--ice-border); border-radius:26px; padding:6px 8px 6px 14px; transition:border-color .15s, box-shadow .15s; }
.ice-input-pill:focus-within{ border-color:var(--ice-cyan-dim); box-shadow:0 0 0 3px rgba(94,234,212,0.12); }
.ice-input-pill input[type=text]{ flex:1; border:none; background:transparent; color:var(--ice-text); font-size:0.95rem; padding:10px 4px; outline:none; }
.ice-icon-btn-flat{ background:transparent; border:none; width:34px; height:34px; }
.ice-icon-btn-flat:hover{ background:var(--ice-panel); }
.ice-send-btn{ width:38px; height:38px; border-radius:50%; border:none; background:linear-gradient(135deg, var(--ice-cyan-dim), var(--ice-blue)); color:#04101a; font-size:1rem; cursor:pointer; display:flex; align-items:center; justify-content:center; transition:transform .12s; flex-shrink:0; }
.ice-send-btn:hover{ transform:scale(1.06); }
.ice-send-btn:active{ transform:scale(0.94); }

table.ice-table{ width:100%; border-collapse:collapse; font-size:0.9rem; }
table.ice-table th, table.ice-table td{ padding:10px 12px; border-bottom:1px solid var(--ice-border); text-align:left; }
table.ice-table th{ color:var(--ice-text-dim); font-weight:600; font-size:0.78rem; text-transform:uppercase; letter-spacing:0.04em; }

.badge{ display:inline-block; padding:3px 9px; border-radius:99px; font-size:0.74rem; font-weight:600; }
.badge.active{ background:rgba(94,234,212,0.15); color:var(--ice-cyan); }
.badge.suspended{ background:rgba(251,191,36,0.15); color:#fbbf24; }
.badge.banned{ background:rgba(248,113,113,0.15); color:#f87171; }

.ice-toast-wrap{ position:fixed; top:16px; right:16px; z-index:999; display:flex; flex-direction:column; gap:8px; }
.ice-toast{ background:var(--ice-bg-2); border:1px solid var(--ice-border); color:var(--ice-text); padding:12px 16px; border-radius:10px; font-size:0.88rem; box-shadow:0 8px 24px rgba(0,0,0,0.25); animation:ice-toast-in .2s ease; }
@keyframes ice-toast-in{ from{ opacity:0; transform:translateY(-8px);} to{ opacity:1; transform:translateY(0);} }

.ice-notif-dropdown{ position:absolute; top:44px; right:0; width:300px; max-height:360px; overflow-y:auto; background:var(--ice-bg-2); border:1px solid var(--ice-border); border-radius:12px; padding:10px; display:none; z-index:50; box-shadow:0 12px 30px rgba(0,0,0,0.3); }
.ice-notif-dropdown.open{ display:block; }
.ice-notif-item{ padding:8px 10px; border-radius:8px; font-size:0.85rem; }
.ice-notif-item:hover{ background:var(--ice-panel); }

.ice-form-grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.ice-hint{ font-size:0.76rem; color:var(--ice-text-dim); margin:-10px 0 14px; }
@media (max-width: 700px){ .ice-form-grid-2{ grid-template-columns:1fr; } }

@media (max-width: 800px){
  .ice-shell{ flex-direction:column; }
  .ice-sidebar{ width:100%; flex-direction:row; overflow-x:auto; }
  .ice-main{ padding:18px; }
  .ice-chat-list{ display:none; }
}