/* SchoolCore design system — dark default + light theme */
:root, [data-theme="dark"] {
  --sc-primary: #5B6EF5;
  --sc-primary-hover: #4A5CE0;
  --sc-primary-soft: rgba(91,110,245,0.15);
  --sc-accent-gold: #F0C040;
  --sc-success: #22C55E;
  --sc-success-soft: rgba(34,197,94,0.12);
  --sc-danger: #EF4444;
  --sc-warning: #F59E0B;
  --sc-info: #38BDF8;
  --sc-bg: #06060F;
  --sc-bg-elevated: #0C0C1C;
  --sc-bg-card: #111122;
  --sc-bg-hover: #181830;
  --sc-bg-input: #1E1E38;
  --sc-border: rgba(255,255,255,0.08);
  --sc-border-strong: rgba(255,255,255,0.14);
  --sc-text: #E8E8F8;
  --sc-text-secondary: #8080A8;
  --sc-text-muted: #404060;
  --sc-nav-bg: rgba(12,12,28,0.94);
  --sc-header-bg: rgba(6,6,15,0.88);
  --sc-shadow: 0 4px 24px rgba(0,0,0,0.35);
  --sc-shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
}

[data-theme="light"] {
  --sc-primary: #4F5FE8;
  --sc-primary-hover: #3D4CD0;
  --sc-primary-soft: rgba(79,95,232,0.12);
  --sc-bg: #F4F5FA;
  --sc-bg-elevated: #FFFFFF;
  --sc-bg-card: #FFFFFF;
  --sc-bg-hover: #EEF0F8;
  --sc-bg-input: #EEF0F8;
  --sc-border: rgba(0,0,0,0.08);
  --sc-border-strong: rgba(0,0,0,0.14);
  --sc-text: #12121F;
  --sc-text-secondary: #5A5A7A;
  --sc-text-muted: #9A9AB0;
  --sc-nav-bg: rgba(255,255,255,0.94);
  --sc-header-bg: rgba(244,245,250,0.9);
  --sc-shadow: 0 4px 24px rgba(0,0,0,0.08);
  --sc-shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
}

:root {
  --sc-radius-sm: 8px;
  --sc-radius: 14px;
  --sc-radius-lg: 18px;
  --sc-radius-full: 9999px;
  --sc-nav-height: 60px;
  --sc-sidebar-width: 260px;
  --sc-header-height: 52px;
  --sc-font: 'DM Sans', system-ui, -apple-system, sans-serif;
  --sc-font-display: 'Syne', 'DM Sans', system-ui, sans-serif;
  --sc-ease: cubic-bezier(0.4,0,0.2,1);
  --sc-duration: 0.2s;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{height:100%;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sc-font);background:var(--sc-bg);color:var(--sc-text);
  line-height:1.5;min-height:100%;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  transition:background .25s ease,color .25s ease;
}
h1,h2,h3,h4{font-family:var(--sc-font-display);font-weight:700;letter-spacing:-0.02em}
a{color:var(--sc-primary);text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}

#app{display:flex;flex-direction:column;min-height:100vh;min-height:100dvh}
.app-column{flex:1;display:flex;flex-direction:column;min-width:0}

/* Header */
.app-header{
  position:sticky;top:0;z-index:50;height:var(--sc-header-height);
  background:var(--sc-header-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--sc-border);
  display:flex;align-items:center;padding:0 14px;gap:10px;
}
.app-header .brand{display:flex;align-items:center;gap:8px;font-family:var(--sc-font-display);font-weight:700;font-size:1.05rem;color:var(--sc-text)}
.app-header .brand img{width:28px;height:28px;border-radius:8px}
.app-header .spacer{flex:1}
.header-btn{
  width:38px;height:38px;border-radius:var(--sc-radius-full);border:none;
  background:var(--sc-bg-hover);color:var(--sc-text-secondary);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background var(--sc-duration),color var(--sc-duration);
}
.header-btn:active{transform:scale(0.94)}
.header-btn:hover{color:var(--sc-text)}

.app-main{
  flex:1;padding:16px 16px calc(var(--sc-nav-height) + 20px);
  max-width:720px;margin:0 auto;width:100%;
}

/* Desktop sidebar */
@media(min-width:900px){
  #app{flex-direction:row}
  .app-sidebar{
    display:flex!important;flex-direction:column;width:var(--sc-sidebar-width);
    min-height:100vh;background:var(--sc-bg-elevated);border-right:1px solid var(--sc-border);
    position:sticky;top:0;height:100vh;overflow-y:auto;padding:20px 12px;
  }
  .app-header{display:none}
  .app-main{padding:28px 36px 48px;max-width:900px}
  .bottom-nav{display:none!important}
}
.app-sidebar{display:none}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:8px 12px 24px;font-family:var(--sc-font-display);font-weight:800;font-size:1.2rem}
.sidebar-brand img{width:34px;height:34px;border-radius:10px}
.sidebar-nav{display:flex;flex-direction:column;gap:4px}
.sidebar-nav a,.sidebar-nav button{
  display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--sc-radius);
  color:var(--sc-text-secondary);background:transparent;border:none;cursor:pointer;
  font-size:0.95rem;font-weight:500;text-align:left;text-decoration:none;
  transition:all var(--sc-duration) var(--sc-ease);
}
.sidebar-nav a:hover,.sidebar-nav button:hover,.sidebar-nav a.active,.sidebar-nav button.active{
  background:var(--sc-primary-soft);color:var(--sc-primary);
}
.sidebar-section{margin-top:18px;padding:0 14px 8px;font-size:0.68rem;text-transform:uppercase;letter-spacing:0.08em;color:var(--sc-text-muted);font-weight:600}

/* Bottom nav — native style */
.bottom-nav{
  position:fixed;bottom:0;left:0;right:0;height:var(--sc-nav-height);
  background:var(--sc-nav-bg);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-top:1px solid var(--sc-border);
  display:flex;align-items:stretch;justify-content:space-around;
  z-index:100;padding-bottom:env(safe-area-inset-bottom,0);
}
.bottom-nav button{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:100%;background:none;border:none;color:var(--sc-text-secondary);
  font-size:0.62rem;font-weight:600;letter-spacing:0.02em;cursor:pointer;
  -webkit-tap-highlight-color:transparent;transition:color .15s;
}
.bottom-nav button.active{color:var(--sc-primary)}
.bottom-nav .nav-icon{font-size:1.2rem;line-height:1}
.bottom-nav button.active .nav-icon{transform:scale(1.08)}

/* Cards & tiles */
.card{background:var(--sc-bg-card);border:1px solid var(--sc-border);border-radius:var(--sc-radius-lg);padding:16px;box-shadow:var(--sc-shadow-sm)}
.launcher-greeting{margin-bottom:18px}
.launcher-greeting h1{font-size:1.45rem;margin-bottom:4px}
.launcher-greeting p{color:var(--sc-text-secondary);font-size:0.9rem}
.launcher-section{margin-bottom:22px}
.launcher-section h2{font-size:0.7rem;text-transform:uppercase;letter-spacing:0.08em;color:var(--sc-text-muted);margin-bottom:10px;font-weight:600}
.launcher-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(min-width:520px){.launcher-grid{grid-template-columns:repeat(3,1fr)}}

.app-tile{
  display:flex;flex-direction:column;align-items:flex-start;gap:10px;
  padding:16px 14px;background:var(--sc-bg-card);border:1px solid var(--sc-border);
  border-radius:var(--sc-radius-lg);cursor:pointer;text-align:left;color:inherit;width:100%;
  min-height:104px;transition:transform .15s var(--sc-ease),box-shadow .15s,border-color .15s,background .15s;
  -webkit-tap-highlight-color:transparent;
}
.app-tile:active{transform:scale(0.97)}
.app-tile:hover{border-color:var(--sc-border-strong);box-shadow:var(--sc-shadow-sm);background:var(--sc-bg-hover)}
.app-tile .tile-icon{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.15rem}
.app-tile .tile-title{font-weight:600;font-size:0.92rem}
.app-tile .tile-desc{font-size:0.72rem;color:var(--sc-text-secondary);line-height:1.35}

.tile-icon.teacher{background:rgba(56,189,248,0.15);color:#38BDF8}
.tile-icon.student{background:var(--sc-success-soft);color:var(--sc-success)}
.tile-icon.result{background:rgba(240,192,64,0.15);color:var(--sc-accent-gold)}
.tile-icon.verify{background:rgba(34,197,94,0.15);color:#22C55E}
.tile-icon.find{background:rgba(168,85,247,0.15);color:#A855F7}
.tile-icon.publish{background:rgba(249,115,22,0.15);color:#F97316}
.tile-icon.partner{background:rgba(236,72,153,0.15);color:#EC4899}
.tile-icon.hub{background:rgba(99,102,241,0.15);color:#818CF8}
.tile-icon.settings{background:rgba(148,163,184,0.15);color:#94A3B8}
.tile-icon.api{background:rgba(100,116,139,0.2);color:#94A3B8}
[data-theme="light"] .tile-icon.teacher{background:rgba(56,189,248,0.12)}
[data-theme="light"] .tile-icon.student{background:rgba(34,197,94,0.12)}

/* Quick actions row on dashboard */
.quick-row{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;margin-bottom:20px;-webkit-overflow-scrolling:touch}
.quick-row::-webkit-scrollbar{display:none}
.quick-chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:var(--sc-radius-full);
  background:var(--sc-bg-card);border:1px solid var(--sc-border);
  color:var(--sc-text);font-size:0.8rem;font-weight:600;cursor:pointer;
  white-space:nowrap;transition:background .15s;
}
.quick-chip:active{transform:scale(0.96)}
.quick-chip i{color:var(--sc-primary);font-size:0.9rem}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 18px;border-radius:var(--sc-radius);font-weight:600;font-size:0.92rem;
  border:none;cursor:pointer;transition:all var(--sc-duration) var(--sc-ease);
  -webkit-tap-highlight-color:transparent;
}
.btn-primary{background:var(--sc-primary);color:#fff}
.btn-primary:hover{background:var(--sc-primary-hover)}
.btn-ghost{background:transparent;color:var(--sc-text-secondary);border:1px solid var(--sc-border)}
.btn-ghost:hover{background:var(--sc-bg-hover);color:var(--sc-text)}
.btn-sm{padding:8px 14px;font-size:0.82rem}

.hidden{display:none!important}
.text-secondary{color:var(--sc-text-secondary)}.text-muted{color:var(--sc-text-muted)}
.text-sm{font-size:0.875rem}.text-xs{font-size:0.75rem}
.mt-2{margin-top:8px}.mt-4{margin-top:16px}.mb-2{margin-bottom:8px}.mb-4{margin-bottom:16px}
.flex{display:flex}.gap-2{gap:8px}

.splash{position:fixed;inset:0;background:var(--sc-bg);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:9999;transition:opacity .35s,visibility .35s}
.splash.hide{opacity:0;visibility:hidden;pointer-events:none}
.splash-logo{width:68px;height:68px;border-radius:16px;margin-bottom:14px;animation:pulse 1.4s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(.96);opacity:.85}}
.splash-text{font-family:var(--sc-font-display);font-weight:700;font-size:1.2rem}

.profile-chip{
  display:flex;align-items:center;gap:8px;padding:5px 10px 5px 5px;
  background:var(--sc-bg-hover);border-radius:var(--sc-radius-full);font-size:0.8rem;font-weight:500;
  border:1px solid var(--sc-border);
}
.profile-chip .avatar{
  width:26px;height:26px;border-radius:50%;background:var(--sc-primary-soft);color:var(--sc-primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.75rem;overflow:hidden;
}
.profile-chip .avatar.photo img{width:100%;height:100%;object-fit:cover;display:block;}

.module-view{animation:fadeIn .22s var(--sc-ease)}
@keyframes fadeIn{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}

/* Theme toggle switch (settings) */
.theme-switch{
  width:48px;height:28px;border-radius:999px;background:var(--sc-bg-input);
  border:1px solid var(--sc-border);position:relative;cursor:pointer;transition:background .2s;
}
.theme-switch.on{background:var(--sc-primary)}
.theme-switch::after{
  content:'';position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;
  background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.2);transition:transform .2s;
}
.theme-switch.on::after{transform:translateX(20px)}

/* ── Ad carousel ── */
.sc-ad-slot{margin:0 0 16px;border-radius:var(--sc-radius-lg);overflow:hidden}
.sc-ad-wrap{position:relative;width:100%;border-radius:var(--sc-radius-lg);overflow:hidden;background:var(--sc-bg-card);border:1px solid var(--sc-border)}
.sc-ad-track{position:relative;width:100%;height:100%}
.sc-ad-slide{
  position:absolute;inset:0;display:block;opacity:0;transform:scale(1.02);
  transition:opacity .45s ease,transform .45s ease;text-decoration:none;color:#fff;
}
.sc-ad-slide.current{opacity:1;transform:scale(1);z-index:1}
.sc-ad-scrim{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.55) 0%,rgba(0,0,0,.1) 50%,transparent 100%);pointer-events:none}
.sc-ad-label{
  position:absolute;left:14px;right:14px;bottom:14px;z-index:2;
  font-family:var(--sc-font-display);font-weight:700;font-size:0.95rem;line-height:1.3;
  text-shadow:0 1px 8px rgba(0,0,0,.4);
}
.sc-ad-fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:20px;text-align:center}
.sc-ad-fallback span{font-family:var(--sc-font-display);font-weight:800;font-size:1.15rem;line-height:1.25;max-width:90%}
.sc-ad-dots{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);display:flex;gap:6px;z-index:3}
.sc-ad-dot{width:7px;height:7px;border-radius:50%;border:none;padding:0;background:rgba(255,255,255,.4);cursor:pointer}
.sc-ad-dot.active{background:#fff;transform:scale(1.15)}
.sc-ad-nav{
  position:absolute;top:50%;transform:translateY(-50%);z-index:3;
  width:32px;height:32px;border-radius:50%;border:none;
  background:rgba(0,0,0,.35);color:#fff;display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;transition:opacity .2s;
}
.sc-ad-wrap:hover .sc-ad-nav{opacity:1}
.sc-ad-nav.prev{left:8px}
.sc-ad-nav.next{right:8px}
.sc-ad-nav:active{transform:translateY(-50%) scale(0.94)}

/* Role preview cards */
.preview-card{
  background:var(--sc-bg-card);border:1px solid var(--sc-border);border-radius:var(--sc-radius-lg);
  padding:16px;margin-bottom:14px;cursor:pointer;transition:border-color .15s,box-shadow .15s;
  -webkit-tap-highlight-color:transparent;
}
.preview-card:active{transform:scale(0.99)}
.preview-card:hover{border-color:var(--sc-border-strong);box-shadow:var(--sc-shadow-sm)}
.preview-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.preview-avatar{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:1.2rem;flex-shrink:0;overflow:hidden;
}
.preview-avatar.has-photo{background:var(--sc-bg-hover);}
.preview-avatar.has-photo img{width:100%;height:100%;object-fit:cover;display:block;}
.preview-avatar.teacher{background:rgba(56,189,248,0.15);color:#38BDF8}
.preview-avatar.student{background:var(--sc-success-soft);color:var(--sc-success)}
.preview-meta{flex:1;min-width:0}
.preview-meta .name{font-weight:700;font-size:0.98rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.preview-meta .sub{font-size:0.75rem;color:var(--sc-text-secondary)}
.preview-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.preview-stat{
  background:var(--sc-bg-hover);border-radius:12px;padding:10px 8px;text-align:center;
}
.preview-stat .val{font-family:var(--sc-font-display);font-weight:800;font-size:1.05rem;color:var(--sc-text)}
.preview-stat .lbl{font-size:0.65rem;color:var(--sc-text-secondary);margin-top:2px;text-transform:uppercase;letter-spacing:.04em}
.preview-cta{display:flex;align-items:center;justify-content:space-between;margin-top:12px;font-size:0.8rem;font-weight:600;color:var(--sc-primary)}

/* Education news widget */
.edu-widget{background:var(--sc-bg-card);border:1px solid var(--sc-border);border-radius:var(--sc-radius-lg);overflow:hidden}
.edu-widget-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--sc-border)}
.edu-widget-title{font-weight:700;font-size:0.9rem;display:flex;align-items:center;gap:8px}
.edu-widget-title i{color:var(--sc-primary)}
.edu-widget-all{font-size:0.75rem;font-weight:600;color:var(--sc-primary)}
.edu-widget-body{max-height:280px;overflow-y:auto}
.edu-widget-loading,.edu-widget-empty,.notif-loading,.notif-empty{padding:20px;text-align:center;color:var(--sc-text-secondary);font-size:0.85rem}
.edu-widget-item{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;border-bottom:1px solid var(--sc-border);color:inherit;text-decoration:none;transition:background .15s}
.edu-widget-item:last-child{border-bottom:none}
.edu-widget-item:active{background:var(--sc-bg-hover)}
.edu-widget-emoji{font-size:1.1rem;line-height:1.2}
.edu-widget-text{flex:1;min-width:0}
.edu-widget-item-title{display:block;font-weight:600;font-size:0.85rem;line-height:1.3;margin-bottom:2px}
.edu-widget-item-sum{display:block;font-size:0.72rem;color:var(--sc-text-secondary);line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.edu-widget-chev{color:var(--sc-text-muted);font-size:0.7rem;margin-top:4px}

/* Notifications */
.notif-box{background:var(--sc-bg-card);border:1px solid var(--sc-border);border-radius:var(--sc-radius-lg);overflow:hidden}
.notif-item{display:block;padding:12px 14px;border-bottom:1px solid var(--sc-border);color:inherit;text-decoration:none}
.notif-item:last-child{border-bottom:none}
.notif-item:active{background:var(--sc-bg-hover)}
.notif-item-title{font-weight:600;font-size:0.88rem;margin-bottom:3px}
.notif-item-body{font-size:0.78rem;color:var(--sc-text-secondary);line-height:1.4}
.notif-item-time{font-size:0.68rem;color:var(--sc-text-muted);margin-top:4px}
.notif-badge{position:absolute;top:2px;right:calc(50% - 18px);min-width:16px;height:16px;padding:0 4px;border-radius:999px;background:var(--sc-danger);color:#fff;font-size:0.6rem;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1}
.bottom-nav button{position:relative}

/* Calculator */
.calc-box{background:var(--sc-bg-card);border:1px solid var(--sc-border);border-radius:var(--sc-radius-lg);padding:12px}
.calc-tabs{display:flex;gap:4px;margin-bottom:12px;overflow-x:auto}
.calc-tab{flex:0 0 auto;padding:8px 12px;border-radius:999px;border:1px solid var(--sc-border);background:transparent;color:var(--sc-text-secondary);font-size:0.75rem;font-weight:600;cursor:pointer}
.calc-tab.active{background:var(--sc-primary-soft);color:var(--sc-primary);border-color:transparent}
.calc-label{display:block;font-size:0.72rem;font-weight:600;color:var(--sc-text-secondary);margin:8px 0 4px;text-transform:uppercase;letter-spacing:.04em}
.calc-input{margin-bottom:0}
.calc-result{margin-top:12px;padding:12px;border-radius:var(--sc-radius);background:var(--sc-bg-hover);text-align:center;font-family:var(--sc-font-display);font-weight:800;font-size:1.15rem}

/* Link chips grid */
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
@media(min-width:520px){.link-grid{grid-template-columns:repeat(4,1fr)}}
.link-chip{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  padding:14px 8px;border-radius:var(--sc-radius);background:var(--sc-bg-card);
  border:1px solid var(--sc-border);color:var(--sc-text);text-decoration:none;text-align:center;
  font-size:0.7rem;font-weight:600;min-height:76px;transition:background .15s,border-color .15s;
}
.link-chip:active{transform:scale(0.97)}
.link-chip i{font-size:1.15rem;color:var(--sc-primary)}
.link-chip span{line-height:1.2}

.section-card{background:var(--sc-bg-card);border:1px solid var(--sc-border);border-radius:var(--sc-radius-lg);padding:14px;margin-bottom:14px}
.section-card h3{font-size:0.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--sc-text-muted);margin-bottom:12px;font-weight:600}

/* Header notification badge */
.header-btn .header-badge,
.header-btn .notif-badge{
  position:absolute;top:2px;right:2px;min-width:15px;height:15px;padding:0 4px;
  border-radius:999px;background:var(--sc-danger);color:#fff;font-size:0.58rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;border:2px solid var(--sc-bg);
}
.header-btn .header-badge.hidden,
.header-btn .notif-badge.hidden{display:none!important}

/* Notifications page */
.notif-page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.notif-page-head h1{font-size:1.3rem;font-family:var(--sc-font-display)}

/* Community chat */
.chat-app{display:flex;flex-direction:column;height:calc(100dvh - var(--sc-header-height) - var(--sc-nav-height) - 32px);min-height:420px;max-width:720px;margin:0 auto}
.chat-tabs{display:flex;gap:6px;margin-bottom:10px}
.chat-tab{flex:1;padding:10px;border-radius:var(--sc-radius);border:1px solid var(--sc-border);background:var(--sc-bg-card);color:var(--sc-text-secondary);font-weight:600;font-size:0.85rem;cursor:pointer}
.chat-tab.active{background:var(--sc-primary-soft);color:var(--sc-primary);border-color:transparent}
.chat-subtabs{display:flex;gap:6px;overflow-x:auto;padding-bottom:8px;margin-bottom:6px}
.chat-channel{flex:0 0 auto;padding:6px 12px;border-radius:999px;border:1px solid var(--sc-border);background:transparent;color:var(--sc-text-secondary);font-size:0.72rem;font-weight:600;cursor:pointer;white-space:nowrap}
.chat-channel.active{background:var(--sc-primary);color:#fff;border-color:transparent}
.chat-identity{font-size:0.75rem;color:var(--sc-text-secondary);margin-bottom:8px}
.chat-identity .linkish{background:none;border:none;color:var(--sc-primary);font-weight:600;cursor:pointer;text-decoration:underline}
.chat-messages{flex:1;overflow-y:auto;background:var(--sc-bg-card);border:1px solid var(--sc-border);border-radius:var(--sc-radius-lg);padding:12px;display:flex;flex-direction:column;gap:8px}
.chat-empty{text-align:center;color:var(--sc-text-secondary);padding:28px 12px;font-size:0.85rem}
.chat-bubble{max-width:88%;padding:8px 12px;border-radius:14px;background:var(--sc-bg-hover);align-self:flex-start}
.chat-bubble.mine{align-self:flex-end;background:var(--sc-primary-soft)}
.chat-bubble.official{border:1px solid rgba(240,192,64,0.35);background:rgba(240,192,64,0.08)}
.chat-meta{display:flex;gap:8px;align-items:center;margin-bottom:3px;flex-wrap:wrap}
.chat-name{font-weight:700;font-size:0.75rem}
.chat-role{font-size:0.65rem;color:var(--sc-text-muted);text-transform:uppercase}
.chat-time{font-size:0.65rem;color:var(--sc-text-muted);margin-left:auto}
.chat-text{font-size:0.88rem;line-height:1.4;word-break:break-word}
.chat-compose{display:flex;gap:8px;margin-top:10px;padding-bottom:4px}
.chat-input{flex:1}
.chat-private-panel{margin-top:8px}
.chat-private-list{max-height:140px;overflow-y:auto;margin-bottom:10px;border:1px solid var(--sc-border);border-radius:var(--sc-radius);background:var(--sc-bg-card)}
.chat-peer{display:block;width:100%;text-align:left;padding:10px 12px;border:none;border-bottom:1px solid var(--sc-border);background:transparent;color:var(--sc-text);cursor:pointer}
.chat-peer:last-child{border-bottom:none}
.chat-peer-name{font-weight:600;font-size:0.85rem}
.chat-peer-last{font-size:0.72rem;color:var(--sc-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-add-peer{display:grid;grid-template-columns:1fr 1fr auto;gap:8px}
@media(max-width:520px){.chat-add-peer{grid-template-columns:1fr;}}