:root{color-scheme:light;--app-bg: radial-gradient(circle at top left, rgba(47, 111, 103, .1), transparent 28%), radial-gradient(circle at top right, rgba(140, 106, 47, .09), transparent 24%), linear-gradient(180deg, #f4f7f5 0%, #edf2ef 100%);--surface: rgba(252, 253, 251, .92);--surface-strong: rgba(255, 255, 255, .98);--border: rgba(24, 45, 41, .12);--shadow-soft: 0 16px 40px rgba(24, 45, 41, .08);--safe-top: env(safe-area-inset-top, 0px);--safe-right: env(safe-area-inset-right, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px)}html,body,#root{min-height:100%;height:100%}body{margin:0;min-height:100vh;min-height:100dvh;background:var(--app-bg)}.shell-root{position:relative;min-height:100vh;min-height:100dvh;overflow:hidden}.centered{min-height:100vh;min-height:100dvh;display:grid;place-items:center}.login-shell{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:calc(28px + var(--safe-top)) calc(20px + var(--safe-right)) calc(20px + var(--safe-bottom)) calc(20px + var(--safe-left))}.login-card,.sidebar-panel,.chat-panel,.detail-panel{border-radius:32px!important;border:1px solid var(--border);background:var(--surface)!important;box-shadow:var(--shadow-soft)}.login-card{width:min(580px,100%);padding:32px}.app-shell{height:100vh;height:100dvh;padding:calc(18px + var(--safe-top)) calc(18px + var(--safe-right)) calc(18px + var(--safe-bottom)) calc(18px + var(--safe-left));box-sizing:border-box;display:flex;flex-direction:column;overflow:hidden}.app-shell-frame{position:absolute;inset:0;opacity:0;transform:translateY(28px) scale(.985);transition:opacity .32s ease,transform .42s cubic-bezier(.2,.8,.2,1);pointer-events:none}.app-shell-frame-ready{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}.workspace-transition{position:absolute;inset:0;z-index:5;display:grid;place-items:center;padding:calc(24px + var(--safe-top)) calc(20px + var(--safe-right)) calc(20px + var(--safe-bottom)) calc(20px + var(--safe-left));background:radial-gradient(circle at top,rgba(47,111,103,.18),transparent 40%),#f4f7f5c7;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);opacity:0;pointer-events:none;transition:opacity .24s ease}.workspace-transition-visible{opacity:1}.workspace-transition-card{width:min(560px,100%);padding:28px;border-radius:30px!important;border:1px solid rgba(24,45,41,.1);background:#ffffffd1!important;box-shadow:0 24px 56px #182d291f}.notice-banner{margin-bottom:12px}.workspace{display:grid;grid-template-columns:320px minmax(0,1fr) 288px;gap:18px;flex:1;min-height:0}.sidebar-panel,.chat-panel,.detail-panel{height:100%;min-height:0;overflow:hidden}.sidebar-content,.detail-content{height:100%;min-height:0;overflow:auto;padding:22px;box-sizing:border-box}.conversation-list{overflow:auto;padding-right:2px}.conversation-item{gap:12px;margin-bottom:8px;border-radius:22px!important;padding:12px!important}.sidebar-card,.detail-card{border-radius:24px!important;background:var(--surface-strong)!important}.sidebar-card{padding:16px}.detail-card{padding:18px}.chat-panel{display:grid;grid-template-rows:auto minmax(0,1fr) auto auto;height:100%;min-height:0;overflow:hidden;position:relative}.chat-header{padding:20px 22px 18px;border-bottom:1px solid var(--border)}.chat-header-copy{flex:1;min-width:0}.chat-status-chip{flex-shrink:0}.message-list{min-height:0;overflow:auto;padding:20px 22px 12px;box-sizing:border-box;position:relative;scroll-behavior:smooth}.message-list-empty{display:grid}.message-list-top{display:flex;justify-content:center;margin-bottom:12px}.message-row{width:100%;min-width:0;margin-bottom:14px;align-items:flex-end;animation:message-enter .22s ease;content-visibility:auto;contain-intrinsic-size:120px}.message-row-outgoing{padding-left:56px}.message-row-incoming{padding-right:56px}.message-avatar{width:34px!important;height:34px!important}.message-content{min-width:0;max-width:min(100%,44rem);flex:0 1 min(100%,44rem)}.message-content>*{max-width:100%}.message-meta{max-width:100%;padding-inline:4px}.new-message-notice{position:absolute;left:50%;bottom:124px;transform:translate(-50%);z-index:1}.composer-panel{padding:16px 22px calc(18px + var(--safe-bottom));border-top:1px solid var(--border);background:linear-gradient(180deg,#fcfdfbbf,#fcfdfbf5)}.composer-meta{flex-wrap:wrap}.send-button{min-width:108px;height:56px}.empty-state{display:grid;place-items:center;text-align:center;gap:8px}.empty-state-chat{min-height:100%;padding:32px 20px}.empty-state-sidebar{padding:20px 8px}@keyframes message-enter{0%{opacity:0;transform:translateY(10px) scale(.985)}to{opacity:1;transform:translateY(0) scale(1)}}@media(max-width:1320px){.workspace{grid-template-columns:300px minmax(0,1fr)}.detail-panel{display:none}}@media(max-width:900px){.app-shell{padding:0}.app-shell-frame{transform:translateY(18px) scale(.992)}.notice-banner{margin:12px}.workspace,.workspace-mobile{grid-template-columns:minmax(0,1fr);gap:0;height:100%;min-height:0}.sidebar-panel,.chat-panel{border-radius:0!important;border-left:0;border-right:0;height:100%;min-height:0}.sidebar-panel{box-shadow:none}.chat-panel{grid-template-rows:auto minmax(0,1fr) auto auto}.sidebar-content,.detail-content{padding:calc(18px + var(--safe-top)) 16px calc(16px + var(--safe-bottom))}.chat-header{padding:calc(16px + var(--safe-top)) 16px 14px}.message-list{padding:18px 16px 8px}.message-row-outgoing,.message-row-incoming{padding-inline:0}.composer-panel{padding:14px 16px calc(14px + var(--safe-bottom))}.send-button{min-width:92px}.new-message-notice{bottom:calc(116px + var(--safe-bottom))}.workspace-transition-card{padding:24px;border-radius:24px!important}}