:root{--bg: #0f1219;--surface: #171b26;--surface2: #1e2433;--border: #2a3142;--text: #e8eaef;--muted: #8b93a7;--accent: #6c8cff;--accent-dim: #4a5fbf;--danger: #f07178;--ok: #7fd99a;--radius: 12px;--bg-glow: #1a2240;--top-bar-bg: rgba(15, 18, 25, .85);--shadow-card: 0 24px 48px rgba(0, 0, 0, .35);--avatar-accent-2: #9b7fd9;--bubble-mine-bg: rgba(108, 140, 255, .2);--bubble-mine-border: rgba(108, 140, 255, .35);--composer-attach-hover-bg: rgba(108, 140, 255, .12);--file-attachment-bg: rgba(0, 0, 0, .2);--user-row-active-bg: rgba(108, 140, 255, .15);--user-row-active-outline: rgba(108, 140, 255, .35);--unread-fg: #0f1219;font-family:DM Sans,system-ui,sans-serif;line-height:1.5;color:var(--text);background:var(--bg)}html[data-theme=light]{--bg: #eef0f5;--surface: #ffffff;--surface2: #e8ebf2;--border: #c5ccd8;--text: #141820;--muted: #5c6578;--accent: #4661e6;--accent-dim: #3548b8;--danger: #c42d3e;--ok: #1d7a4a;--bg-glow: #c5d4f7;--top-bar-bg: rgba(255, 255, 255, .88);--shadow-card: 0 24px 48px rgba(15, 22, 40, .1);--avatar-accent-2: #7c6ae6;--bubble-mine-bg: rgba(70, 97, 230, .2);--bubble-mine-border: rgba(70, 97, 230, .38);--composer-attach-hover-bg: rgba(70, 97, 230, .14);--file-attachment-bg: rgba(0, 0, 0, .06);--user-row-active-bg: rgba(70, 97, 230, .14);--user-row-active-outline: rgba(70, 97, 230, .4);--unread-fg: #f8f9fc}html[data-theme=ocean]{--bg: #061018;--surface: #0c1822;--surface2: #122530;--border: #1e3a4a;--text: #e4eef2;--muted: #7a9bab;--accent: #2dd4bf;--accent-dim: #0d9488;--danger: #fb7185;--ok: #4ade80;--bg-glow: #0d3d4d;--top-bar-bg: rgba(6, 16, 24, .9);--shadow-card: 0 24px 48px rgba(0, 0, 0, .45);--avatar-accent-2: #38bdf8;--bubble-mine-bg: rgba(45, 212, 191, .18);--bubble-mine-border: rgba(45, 212, 191, .38);--composer-attach-hover-bg: rgba(45, 212, 191, .14);--file-attachment-bg: rgba(0, 0, 0, .28);--user-row-active-bg: rgba(45, 212, 191, .14);--user-row-active-outline: rgba(45, 212, 191, .4);--unread-fg: 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8px;font-size:1.5rem;font-weight:700}h2{margin:0;font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.muted{color:var(--muted)}.muted.small{font-size:.875rem}.form{display:flex;flex-direction:column;gap:14px;margin-top:20px}.form label{display:flex;flex-direction:column;gap:6px;font-size:.875rem;font-weight:500;min-width:0}.profile-page-scroll .form input:not([type=file]){min-width:0;width:100%;max-width:100%}input:not([type=file]){padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--surface2);color:var(--text);font:inherit}input:focus{outline:2px solid var(--accent);outline-offset:0}.btn{font:inherit;cursor:pointer;border-radius:8px;border:1px solid var(--border);padding:10px 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6px}.user-meta{display:flex;flex-direction:column;min-width:0}.user-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-email{font-size:.75rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.avatar-fallback{border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--avatar-accent-2));display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;flex-shrink:0}.avatar-fallback.large{width:96px;height:96px;font-size:2rem}.thread{display:flex;flex-direction:column;min-height:0;overflow:hidden;background:var(--bg)}.thread-body{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.empty-thread{flex:1;display:flex;align-items:center;justify-content:center;color:var(--muted);padding:24px}.empty-thread-msg{margin:0;text-align:center;max-width:18rem;line-height:1.45}.thread-header{flex-shrink:0;display:flex;align-items:center;gap:12px;padding:14px 20px;border-bottom:1px solid 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.sidebar{transform:translate(0);pointer-events:auto}.top-bar{padding-top:max(12px,env(safe-area-inset-top,0px));padding-left:max(12px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}.socket-banner{padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}.sidebar{border-right:none}.thread-header{padding-left:max(14px,env(safe-area-inset-left,0px));padding-right:max(14px,env(safe-area-inset-right,0px));padding-top:12px}.messages{padding-left:max(12px,env(safe-area-inset-left,0px));padding-right:max(12px,env(safe-area-inset-right,0px))}.composer{padding-left:max(14px,env(safe-area-inset-left,0px));padding-right:max(14px,env(safe-area-inset-right,0px));padding-bottom:max(14px,env(safe-area-inset-bottom,0px));gap:8px}.bubble{max-width:min(88%,100%)}.user-row{min-height:44px}input:not([type=file]),textarea{font-size:16px}.avatar-preview-row{flex-direction:column;align-items:flex-start;gap:12px}}@media (max-width: 520px){.top-bar-me,.thread-header-email{display:none}.auth-card,.profile-card{padding:22px 18px 20px}.top-bar-back-label{display:none}.top-bar-back-link{margin-left:-8px}}