:root{--ink:#17313d;--muted:#7e8b8b;--paper:#f4efe7;--line:rgba(23,49,61,.11);--navy:#1b3a4b;--teal:#3f7d78;--orange:#d78a53;--violet:#8b7caa;--danger:#b65f55;--card:#fbf9f5}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI','Microsoft YaHei',sans-serif}button,input{font:inherit}button{border:0;cursor:pointer}button:focus-visible,input:focus-visible{outline:3px solid rgba(63,125,120,.35);outline-offset:3px}.auth-page{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(420px,.95fr);background:var(--paper)}.auth-visual{position:relative;overflow:hidden;min-height:100vh;padding:48px clamp(34px,7vw,120px);background:var(--navy);color:#f4efe7;display:flex;flex-direction:column;justify-content:space-between}.brand-mark{font-size:22px;font-weight:700;letter-spacing:-.03em}.visual-copy{position:relative;z-index:1;max-width:550px;padding:10vh 0 7vh}.eyebrow{color:var(--teal);font-size:11px;font-weight:700;letter-spacing:.13em;text-transform:uppercase}.auth-visual .eyebrow{color:#b8d2cb}.visual-copy h1{margin:20px 0 22px;font-size:clamp(48px,6.6vw,90px);line-height:.98;letter-spacing:-.075em;font-weight:600}.visual-copy h1 em{color:#e5a067;font-style:normal}.visual-copy>p:last-child{max-width:300px;color:rgba(244,239,231,.68);line-height:1.7;font-size:15px}.signal-card{position:relative;z-index:1;display:grid;grid-template-columns:auto 1fr;gap:6px 10px;align-items:center;width:min(100%,315px);padding:16px 18px;border:1px solid rgba(244,239,231,.16);background:rgba(244,239,231,.08);backdrop-filter:blur(10px)}.signal-card span:nth-child(2){font-size:12px;color:#cbdcd6}.signal-card strong{grid-column:2;font-size:13px;font-weight:500}.signal-dot{width:8px;height:8px;border-radius:100%;background:#d4a36e;box-shadow:0 0 0 5px rgba(212,163,110,.16)}.orbit{position:absolute;border:1px solid rgba(210,230,221,.13);border-radius:50%;transform:rotate(-26deg)}.orbit-one{width:680px;height:290px;right:-230px;top:19%}.orbit-two{width:680px;height:290px;right:-180px;top:27%;transform:rotate(25deg)}.auth-card-wrap{display:grid;place-items:center;padding:42px;background:var(--paper)}.auth-card{width:min(100%,420px)}.auth-head{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;margin-bottom:74px}.mini-mark{width:28px;height:28px;display:grid;place-items:center;background:var(--navy);color:#e7a269;font-size:14px}.form-intro{margin-bottom:34px}.form-intro h2{margin:12px 0 10px;font-size:36px;letter-spacing:-.055em;line-height:1}.form-intro p{color:var(--muted);font-size:14px;line-height:1.6;margin:0}.auth-form{display:grid;gap:18px}.auth-form label{display:grid;gap:8px;color:var(--ink);font-size:12px;font-weight:600}.auth-form input{width:100%;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;padding:9px 0 13px;color:var(--ink);font-size:15px}.auth-form input::placeholder{color:#b3b8b5}.primary-button{display:flex;align-items:center;justify-content:space-between;margin-top:12px;padding:15px 17px;color:#fff;background:var(--navy);transition:transform .2s,background .2s}.primary-button:hover{transform:translateY(-2px);background:#22495d}.primary-button span{font-size:19px}.auth-switch{margin:24px 0 0;color:var(--muted);font-size:13px}.link-button{color:var(--teal);background:none;padding:0;text-decoration:underline;text-underline-offset:3px}.demo-hint{margin-top:54px;padding-top:16px;border-top:1px solid var(--line);color:#a4aaa7;font-size:11px;line-height:1.8}.demo-hint code{color:var(--ink);font-family:inherit}.form-message{min-height:18px;font-size:12px;line-height:1.5}.form-message.error{color:var(--danger)}.form-message.warning{color:#a87541}.form-message.success{color:var(--teal)}
.app-shell{min-height:100vh;display:grid;grid-template-columns:300px 1fr;background:var(--card)}.sidebar{display:flex;flex-direction:column;min-height:100vh;padding:28px 18px 20px;border-right:1px solid var(--line);background:#f1eae0}.sidebar-top,.profile-strip,.list-heading,.chat-header,.chat-person,.chat-actions,.page-heading,.applicant-main,.applicant-actions{display:flex;align-items:center}.sidebar-top{justify-content:space-between;padding:0 10px 27px}.brand-lockup{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:-.04em}.brand-lockup .mini-mark{width:24px;height:24px;font-size:12px}.icon-button,.more-button,.composer-icon{background:transparent;color:var(--muted)}.icon-button{width:34px;height:34px;font-size:21px}.icon-button:hover,.more-button:hover,.composer-icon:hover{color:var(--ink)}.profile-strip{gap:11px;padding:15px 10px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.profile-strip div{display:grid;gap:3px;flex:1}.profile-strip strong{font-size:13px}.profile-strip span{color:var(--muted);font-size:11px}.more-button{font-size:17px;letter-spacing:2px}.avatar{flex:0 0 auto;width:39px;height:39px;display:grid;place-items:center;border-radius:50%;color:#fff;background:var(--teal);font-size:12px;font-weight:700}.avatar.profile{width:34px;height:34px;background:var(--navy)}.avatar.small{width:27px;height:27px;font-size:9px;align-self:flex-end;margin-bottom:22px}.avatar.green{background:var(--teal)}.avatar.orange{background:var(--orange)}.avatar.violet{background:var(--violet)}.avatar.navy{background:var(--navy)}.main-nav{display:grid;gap:4px;padding:22px 0 30px}.nav-item{display:flex;align-items:center;gap:12px;width:100%;padding:10px;background:transparent;color:var(--muted);text-align:left;font-size:13px}.nav-item span{width:21px;color:#9ea8a6;font-size:18px;text-align:center}.nav-item b{margin-left:auto;min-width:18px;color:#aeb4b1;font-size:11px;font-weight:500;text-align:right}.nav-item.active{color:var(--ink);background:rgba(255,255,255,.52)}.nav-item.active span{color:var(--teal)}.review-count:not(:empty){color:var(--orange)}.list-heading{justify-content:space-between;padding:0 10px 12px;color:#9da5a1;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.tiny-action{background:none;color:var(--teal);font-size:11px}.count-pill{padding:3px 7px;background:#e3d8ca;color:#9d7856;font-size:10px}.conversation-list,.review-list,.members-list{display:grid;gap:3px}.conversation-item,.review-item{display:flex;align-items:center;gap:10px;width:100%;padding:11px 10px;background:transparent;text-align:left}.conversation-item:hover,.conversation-item.active,.review-item:hover{background:rgba(255,255,255,.64)}.conversation-copy{display:grid;min-width:0;flex:1;gap:4px}.conversation-copy strong,.review-item strong,.member-row strong{overflow:hidden;color:var(--ink);font-size:12px;font-weight:600;text-overflow:ellipsis;white-space:nowrap}.conversation-copy small,.review-item small,.member-row small{overflow:hidden;color:#a1aaa5;font-size:11px;text-overflow:ellipsis;white-space:nowrap}.conversation-item time{color:#a5aca8;font-size:10px}.review-item{padding:12px 10px}.review-item>span:not(.avatar){display:grid;min-width:0;gap:4px}.empty-side{padding:20px 10px;color:#a5aaa8;font-size:12px;line-height:1.6}.member-row{display:flex;align-items:center;gap:10px;padding:9px 10px}.member-row>span:not(.avatar){display:grid;gap:4px;flex:1}.member-row i,.online-pulse{width:7px;height:7px;border-radius:50%;background:#77a77f}.sidebar-foot{display:flex;align-items:center;gap:8px;margin-top:auto;padding:20px 10px 0;border-top:1px solid var(--line);color:#9da5a1;font-size:10px}.online-pulse{box-shadow:0 0 0 3px rgba(119,167,127,.13)}.muted{color:#c5c6bf}
.main-panel{min-width:0;min-height:100vh;background:var(--card)}.chat-header{justify-content:space-between;min-height:96px;padding:25px clamp(24px,5vw,70px);border-bottom:1px solid var(--line)}.chat-person{gap:13px}.chat-person h2{margin:0 0 5px;font-size:16px;letter-spacing:-.03em}.chat-person span{color:var(--muted);font-size:11px}.chat-actions{gap:4px}.chat-day{display:flex;align-items:center;gap:13px;padding:23px clamp(24px,9vw,150px) 16px;color:#b1b6b2;font-size:10px}.chat-day span{height:1px;flex:1;background:var(--line)}.messages{height:calc(100vh - 194px);overflow-y:auto;padding:0 clamp(24px,9vw,150px) 30px;scroll-behavior:smooth}.message-row{display:flex;gap:10px;align-items:flex-end;margin:14px 0}.message-row.mine{justify-content:flex-end}.message-bubble-wrap{max-width:min(74%,550px)}.message-row.mine .message-bubble-wrap{text-align:right}.sender-name{display:block;margin:0 0 5px 2px;color:var(--teal);font-size:10px;text-align:left}.message-bubble{padding:11px 15px;border-radius:2px 13px 13px 13px;background:#eee9e1;color:var(--ink);font-size:13px;line-height:1.6;text-align:left}.message-row.mine .message-bubble{border-radius:13px 2px 13px 13px;background:var(--navy);color:#f7f3eb}.message-bubble-wrap time{display:block;margin-top:5px;color:#b0b4b0;font-size:10px}.composer{display:flex;align-items:center;gap:10px;min-height:66px;margin:0 clamp(24px,9vw,150px) 22px;padding:0 8px 0 14px;border:1px solid var(--line);background:#f8f5ef}.composer input{flex:1;min-width:0;border:0;outline:0;background:transparent;color:var(--ink);font-size:13px}.composer input::placeholder{color:#b6bab6}.composer-icon{font-size:22px}.send-button{width:36px;height:36px;background:var(--teal);color:#fff;font-size:20px}.send-button:hover{background:var(--navy)}
.content-page{max-width:1000px;margin:0 auto;padding:clamp(42px,8vw,95px) clamp(24px,7vw,90px)}.page-heading{justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:52px}.page-heading h1{margin:14px 0 12px;font-size:clamp(36px,5vw,60px);line-height:.98;letter-spacing:-.07em}.page-heading p{margin:0;color:var(--muted);font-size:14px}.stat-card{min-width:105px;padding:15px 17px;border-left:2px solid var(--orange);background:#f3ede4}.stat-card span{display:block;color:#a89f92;font-size:11px}.stat-card strong{display:block;margin-top:5px;color:var(--ink);font-size:30px;letter-spacing:-.06em}.review-table{display:grid;gap:10px}.applicant-card{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px;border:1px solid var(--line);background:#fffdf9}.applicant-main{gap:14px}.applicant-main h3,.directory-card h3{margin:0 0 5px;font-size:15px}.applicant-main p,.directory-card p{margin:0 0 6px;color:var(--muted);font-size:12px}.applicant-main small{color:#b0b4af;font-size:10px}.applicant-actions{gap:8px}.ghost-button,.primary-small{padding:10px 14px;font-size:12px}.ghost-button{background:#f4efe7;color:var(--danger)}.primary-small{background:var(--navy);color:#fff}.blank-panel{padding:66px 20px;border:1px dashed #c8c3bb;text-align:center}.blank-icon{display:grid;place-items:center;width:40px;height:40px;margin:0 auto 16px;background:#dae7dd;color:var(--teal)}.blank-panel h3{margin:0 0 8px;font-size:16px}.blank-panel p{margin:0;color:var(--muted);font-size:13px}.directory-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}.directory-card{display:flex;align-items:center;gap:14px;padding:22px;border:1px solid var(--line);background:#fffdf9}.directory-card h3{margin:0 0 5px}.directory-card p{margin:0 0 6px}.directory-status{color:#8aa08c;font-size:10px}.directory-status i{display:inline-block;width:6px;height:6px;margin-right:5px;border-radius:50%;background:#77a77f}.empty-state{display:grid;place-items:center;min-height:100vh;color:var(--muted)}
@media(max-width:820px){.auth-page{grid-template-columns:1fr}.auth-visual{min-height:340px;padding:28px 28px 32px}.visual-copy{padding:42px 0 28px}.visual-copy h1{font-size:56px}.signal-card{display:none}.orbit-one,.orbit-two{right:-430px;top:30px}.auth-card-wrap{padding:44px 28px 56px}.auth-head{margin-bottom:56px}.app-shell{grid-template-columns:1fr}.sidebar{min-height:auto;padding:17px 14px 12px}.sidebar-foot{display:none}.main-nav{grid-template-columns:repeat(3,1fr);padding:14px 0 12px}.nav-item{justify-content:center;padding:8px 5px;gap:5px;font-size:11px}.nav-item span,.nav-item b{display:none}.conversation-list,.review-list,.members-list{display:flex;overflow-x:auto;padding-bottom:4px}.conversation-item,.review-item,.member-row{flex:0 0 160px}.conversation-item{padding:8px}.conversation-item time{display:none}.conversation-copy small{max-width:100px}.member-row{background:rgba(255,255,255,.45)}.chat-header{min-height:78px;padding:18px 20px}.messages{height:calc(100vh - 176px);padding:0 20px 30px}.composer{margin:0 20px 15px}.chat-day{padding:18px 20px 12px}.content-page{padding:42px 20px}.page-heading{align-items:flex-start;flex-direction:column;margin-bottom:34px;gap:24px}.applicant-card{align-items:flex-start;flex-direction:column}.applicant-actions{width:100%}.ghost-button,.primary-small{flex:1}.stat-card{align-self:stretch}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}
.ttl-select{max-width:132px;border:0;border-left:1px solid var(--line);background:transparent;color:var(--muted);padding:8px 4px;font-size:10px}.recall-button{margin-left:5px;padding:0;background:transparent;color:#a7afab;font-size:10px;text-decoration:underline;text-underline-offset:2px}.recall-button:hover{color:var(--danger)}.message-row.recalled .message-bubble{background:#e6e2db;color:#9da39f;font-style:italic}.toast{position:fixed;right:24px;bottom:24px;z-index:20;max-width:320px;padding:12px 15px;border:1px solid var(--line);background:var(--navy);color:#fff;font-size:12px;box-shadow:0 12px 30px rgba(23,49,61,.18)}.toast[data-type=error]{background:var(--danger)}
@media(max-width:820px){.ttl-select{max-width:112px;font-size:9px}.composer{gap:6px}.recall-button{font-size:9px}}
.message-image-link{display:block;max-width:min(320px,74vw);margin-bottom:5px}.message-image{display:block;width:auto;height:auto;max-width:min(320px,74vw);max-height:min(320px,45vh);border:1px solid var(--line);object-fit:contain}.message-file{display:grid;grid-template-columns:auto 1fr;gap:3px 8px;align-items:center;min-width:190px;margin-bottom:5px;padding:11px 13px;background:#eee9e1;color:var(--ink);text-decoration:none;text-align:left}.message-file>span{grid-row:span 2;font-size:21px;color:var(--teal)}.message-file strong{overflow:hidden;font-size:12px;text-overflow:ellipsis;white-space:nowrap}.message-file small{color:var(--muted);font-size:10px}.message-row.mine .message-file{background:#dceae6}.message-row.recalled .message-image-link,.message-row.recalled .message-file{display:none}
.group-builder{margin-top:34px;padding:25px;border:1px solid var(--line);background:#fffdf9}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:18px}.section-heading h2{margin:8px 0 6px;font-size:22px;letter-spacing:-.04em}.section-heading p{margin:0;color:var(--muted);font-size:12px;line-height:1.6}.group-limit{color:#a89f92;font-size:11px;white-space:nowrap}.group-title-field{display:grid;gap:8px;max-width:440px;color:var(--ink);font-size:12px;font-weight:600}.group-title-field input{width:100%;padding:11px 12px;border:1px solid var(--line);background:#fbf9f5;color:var(--ink);font-size:14px}.group-member-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:9px;margin-top:18px}.group-member-option{display:flex;align-items:center;gap:10px;padding:11px 12px;border:1px solid var(--line);background:#f8f4ee;cursor:pointer}.group-member-option:has(input:checked){border-color:var(--teal);background:#eaf1ed}.group-member-option input{accent-color:var(--teal)}.group-member-option>span{display:flex;align-items:center;gap:9px}.group-member-option .avatar{width:31px;height:31px;font-size:10px}.group-member-option strong,.group-member-option small{display:block}.group-member-option strong{font-size:12px}.group-member-option small{margin-top:3px;color:var(--muted);font-size:10px}.group-form-footer{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-top:22px;color:var(--muted);font-size:11px}.group-form-footer .primary-small{display:flex;gap:18px;align-items:center}.group-form-footer .primary-small:disabled{opacity:.45;cursor:not-allowed}.group-members-strip{padding:12px 28px;border-bottom:1px solid var(--line);background:#f8f4ee}.group-strip-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:10px}.group-strip-heading strong{display:block;margin-top:3px;font-size:12px}.group-strip-note{color:var(--muted);font-size:10px}.member-chip-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:2px}.member-chip{display:flex;align-items:center;gap:8px;min-width:max-content;padding:7px 8px;background:#fffdf9;border:1px solid var(--line)}.member-chip .avatar{width:28px;height:28px;font-size:9px}.member-chip strong,.member-chip small{display:block}.member-chip strong{font-size:11px}.member-chip small{margin-top:2px;color:var(--muted);font-size:9px}.member-chip .mini-action{margin-left:4px}.mini-action{padding:5px 8px;background:#e2eeeb;color:var(--teal);font-size:10px}.mini-action:hover{background:#d3e5e0}.member-muted{color:#a6aaa5;font-size:10px;white-space:nowrap}.friend-ok{color:var(--teal);font-size:10px;white-space:nowrap}.directory-card{align-items:flex-start}.directory-copy{flex:1;min-width:0}.directory-action{margin-left:auto;padding-left:8px}.friend-sections{display:grid;gap:34px}.friend-sections section{min-width:0}.friend-table{display:grid;gap:9px}.friend-card{display:flex;align-items:center;gap:13px;padding:15px 17px;border:1px solid var(--line);background:#fffdf9}.friend-card-copy{flex:1;min-width:0}.friend-card-copy h3{margin:0 0 5px;font-size:14px}.friend-card-copy p{margin:0;color:var(--muted);font-size:11px}.friend-card-actions{display:flex;gap:7px}.friend-card-actions button{padding:8px 11px;font-size:11px}.blank-panel.compact{padding:28px 18px}.section-heading>span:not(.eyebrow){color:var(--muted);font-size:12px}
@media(max-width:820px){.group-builder{padding:18px}.group-form-footer,.section-heading{align-items:flex-start;flex-direction:column}.group-form-footer{gap:12px}.group-form-footer .primary-small{width:100%;justify-content:space-between}.group-members-strip{padding:12px 20px}.group-strip-heading{align-items:flex-start;flex-direction:column;gap:5px}.member-chip{padding:6px}.directory-action{padding-left:3px}.friend-card{align-items:flex-start;flex-wrap:wrap}.friend-card-actions{width:100%}.friend-card-actions button{flex:1}}
.existing-groups{margin-top:18px}.group-add-form{padding-top:18px;border-top:1px solid var(--line)}.group-add-form+.group-add-form{margin-top:22px}.group-add-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:12px}.group-add-heading strong{font-size:14px}.group-add-heading span{display:block;margin-top:4px;color:var(--muted);font-size:10px}.group-empty-note{padding:16px;background:#f8f4ee;color:var(--muted);font-size:11px}
.account-tools{position:relative;align-self:stretch;display:flex;align-items:center}.account-menu{position:absolute;z-index:15;right:0;top:calc(100% + 8px);display:grid;min-width:128px;padding:6px;border:1px solid var(--line);background:#fffdf9;box-shadow:0 14px 30px rgba(23,49,61,.16)}.account-menu[hidden],.modal-backdrop[hidden]{display:none}.account-menu button{padding:10px 12px;background:transparent;color:var(--ink);text-align:left;font-size:12px;white-space:nowrap}.account-menu button:hover{background:#f1eae0}.account-menu button:last-child{color:var(--danger);border-top:1px solid var(--line)}.modal-backdrop{position:fixed;inset:0;z-index:30;display:grid;place-items:center;padding:24px;background:rgba(23,49,61,.35);backdrop-filter:blur(4px)}.modal-card{position:relative;width:min(100%,430px);padding:30px;background:#fffdf9;box-shadow:0 24px 60px rgba(23,49,61,.22)}.modal-close{position:absolute;top:12px;right:14px;width:30px;height:30px;background:transparent;color:var(--muted);font-size:24px;line-height:1}.modal-card h2{margin:12px 0 8px;font-size:29px;letter-spacing:-.06em}.modal-card>p{margin:0 0 24px;color:var(--muted);font-size:12px;line-height:1.6}.modal-form{display:grid;gap:14px}.modal-form label{display:grid;gap:7px;color:var(--ink);font-size:12px;font-weight:600}.modal-form input,.modal-form select{width:100%;padding:11px 12px;border:1px solid var(--line);background:#fbf9f5;color:var(--ink);font-size:14px}.modal-form .primary-small,.modal-form .danger-button{justify-content:center;margin-top:6px}.danger-modal{border-top:3px solid var(--danger)}.danger-button{padding:11px 14px;background:var(--danger);color:#fff;font-size:12px}.danger-button:hover{background:#974e49}
@media(max-width:820px){.account-menu{right:-6px}.modal-card{padding:25px 20px}.profile-strip{position:relative}.account-tools{margin-left:auto}}
/* Sender identity is consistent between group member chips and message bubbles. */
.sender-name{display:flex;flex-wrap:wrap;align-items:baseline;gap:5px;margin:0 0 5px;font-size:12px;line-height:1.4;overflow-wrap:anywhere}
.sender-name strong{font-weight:700}
.sender-name small{font-size:10px;font-weight:400;color:#63736c}
.sender-name.green{color:#2c6d60}.sender-name.orange{color:#9b5621}.sender-name.violet{color:#655082}.sender-name.navy{color:#315a6c}
.message-row.mine .sender-name{justify-content:flex-end}
.message-bubble-wrap{min-width:0;max-width:min(78%,560px)}
.message-row.mine .message-bubble-wrap{max-width:min(84%,560px)}
.message-bubble{overflow-wrap:anywhere;white-space:pre-wrap}
.connection-status[data-status="reconnecting"]{color:#9b5621}
.history-button{display:block;margin:0 auto 18px;padding:9px 16px;background:#e2eeeb;color:var(--teal);font-size:12px}
.history-button:disabled{opacity:.55;cursor:wait}
@media(max-width:820px){.sender-name{font-size:12px}.sender-name small{font-size:10px}.message-bubble-wrap{max-width:82%}}
/* Fit the full chat, not just its message list, into the available viewport. */
.app-shell{height:100vh;height:100dvh;min-height:0;overflow:hidden}
.sidebar{min-height:0;overflow:auto}
.main-panel{min-height:0;overflow-y:auto}
.chat-view .main-panel{display:flex;flex-direction:column;overflow:hidden}
.chat-view .messages{height:auto;min-height:0;flex:1;overscroll-behavior:contain}
.chat-view .chat-header,.chat-view .group-members-strip,.chat-view .chat-day,.chat-view .composer{flex-shrink:0}
.chat-view .empty-state{height:auto;min-height:0;flex:1}
.sidebar .conversation-list{min-height:0;overflow-y:auto}
.member-toggle{display:none}
@media(max-width:820px){
  .app-shell{grid-template-rows:auto minmax(0,1fr)}
  .sidebar{padding:10px 12px 8px;overflow:visible}
  .sidebar-top{margin-bottom:8px}
  .profile-strip{padding:9px 4px}
  .profile-strip>div:not(.account-tools){min-width:0;flex:1}
  .profile-strip strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:190px}
  .main-nav{grid-template-columns:repeat(auto-fit,minmax(65px,1fr));padding:8px 0}
  .conversation-list,.review-list,.members-list{max-height:66px}
  .chat-header{min-height:64px;padding:12px 16px}
  .chat-person{min-width:0}
  .chat-person h2{max-width:65vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .group-members-strip{padding:8px 16px}
  .group-strip-heading{flex-direction:row;align-items:center;gap:8px;margin-bottom:0}
  .group-strip-heading .eyebrow,.group-strip-note{display:none}
  .group-strip-heading strong{margin:0}
  .member-toggle{display:block;padding:8px}
  .group-members-strip .member-chip-list{display:none}
  .group-members-strip[data-expanded="true"] .member-chip-list{display:flex;margin-top:8px}
  .chat-day{padding:10px 16px 8px}
  .messages{padding:0 16px 14px}
  .composer{display:grid;grid-template-columns:30px minmax(0,1fr) 40px;gap:4px 6px;min-height:0;margin:0 12px max(8px,env(safe-area-inset-bottom));padding:7px 8px}
  .composer input{font-size:16px;width:100%;min-height:36px}
  .ttl-select{grid-column:1/-1;grid-row:2;width:100%;max-width:none;font-size:12px;border-left:0;border-top:1px solid var(--line);padding:7px 2px}
  .send-button{grid-column:3;grid-row:1;min-width:40px;min-height:40px}
  .composer-icon{min-height:40px;display:grid;place-items:center}
  .more-button,.icon-button{min-width:40px;min-height:40px}
  .auth-form input,.modal-form input{font-size:16px}
  .modal-backdrop{padding:14px;overflow-y:auto}
  .modal-card{max-height:calc(100dvh - 28px);overflow-y:auto}
}
.chat-person .connection-status{display:inline;color:inherit;font-size:inherit}
.connection-status[data-status="fallback"]{color:#9b5621}
.account-handle{font-size:11px;font-weight:400;color:var(--muted)}
.push-state{padding:14px;background:#edf2ee;color:var(--ink)!important;font-size:13px!important}
.push-buttons{display:flex;flex-wrap:wrap;gap:8px}.push-buttons button{min-height:40px}
.push-buttons button:disabled{opacity:.45;cursor:not-allowed}
.push-delivery{display:block;margin-top:14px;color:var(--muted);font-size:11px}
.modal-card .push-note{margin:16px 0 0;font-size:11px;line-height:1.7}
/* Chat links + "leaving the site" confirmation */
.message-link{color:inherit;text-decoration:underline;text-underline-offset:2px;word-break:break-all;cursor:pointer}
.leave-guard{position:fixed;inset:0;z-index:1100;display:grid;place-items:center;padding:16px;background:rgba(10,18,22,.6)}
.leave-guard-card{box-sizing:border-box;width:min(420px,100%);max-height:calc(100dvh - 32px);overflow-y:auto;padding:22px 20px;background:#fff;color:#1b2a33;text-align:left}
.leave-guard-card h3{margin:0 0 10px;font-size:18px}
.leave-guard-card p{margin:0 0 10px;font-size:14px;line-height:1.6}
.leave-guard-host{font-weight:700}
.leave-guard-url{padding:10px;background:#f1eee8;font-size:12px!important;word-break:break-all;max-height:120px;overflow-y:auto}
.leave-guard-actions{display:flex;gap:10px;margin-top:14px}
.leave-guard-actions button{flex:1;min-height:44px;border:1px solid #1b3a4b;background:#fff;color:#1b3a4b;font-size:15px;cursor:pointer}
.leave-guard-actions .leave-guard-go{background:#1b3a4b;color:#fff}
/* Mobile chat layout: while a conversation is open, shrink the sidebar to a slim
   top bar so the message area gets almost the whole screen. */
@media(max-width:820px){
  .chat-view .sidebar{padding:6px 12px 4px}
  .chat-view .sidebar-top{margin-bottom:2px}
  .chat-view .profile-strip{display:none}
  .chat-view .main-nav{padding:2px 0}
  .chat-view .main-nav button{min-height:36px;padding-top:6px;padding-bottom:6px}
  .chat-view .sidebar .conversation-list{max-height:52px;overflow-x:auto;overflow-y:hidden;display:flex;gap:8px;flex-wrap:nowrap}
  .chat-view .sidebar .conversation-list>*{flex:0 0 auto;min-width:140px}
  .chat-view .chat-header{min-height:48px;padding:8px 14px}
  .chat-view .group-members-strip{padding:4px 14px}
  .chat-view .chat-day{padding:4px 14px 4px}
  .chat-view .messages{padding:0 12px 10px}
  .chat-view .composer{margin:0 8px max(6px,env(safe-area-inset-bottom))}
}
/* Friends list: avatar / name open a direct chat */
.friend-chat-link,.friend-name-link{padding:0;border:0;background:none;color:inherit;font:inherit;text-align:left;cursor:pointer}
.friend-chat-link{display:inline-grid;border-radius:50%;-webkit-tap-highlight-color:transparent}
.friend-chat-link:active .avatar{transform:scale(.94)}
.friend-name-link{font-weight:inherit;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px}
.friend-name-link:hover,.friend-chat-link:hover+.friend-card-copy .friend-name-link{text-decoration-color:currentColor}
.friend-chat-link:focus-visible,.friend-name-link:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
/* Mobile chat layout v2: when a conversation is open, the sidebar becomes ONE slim row
   (brand, tabs, new). Everything else is hidden so the chat gets the whole screen.
   Selectors are doubled (.app-shell.chat-view) to beat the earlier mobile rules. */
@media(max-width:820px){
  .app-shell.chat-view{grid-template-rows:auto minmax(0,1fr)}
  .app-shell.chat-view .sidebar{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:6px;padding:max(6px,env(safe-area-inset-top)) 10px 6px;overflow:visible;border-bottom:1px solid var(--line)}
  .app-shell.chat-view .sidebar-top{display:contents}
  .app-shell.chat-view .brand-lockup{font-size:15px;gap:6px;padding:0}
  .app-shell.chat-view .brand-lockup .mini-mark{width:20px;height:20px;font-size:10px}
  .app-shell.chat-view .sidebar-top .icon-button{min-width:36px;min-height:36px;padding:0}
  .app-shell.chat-view .main-nav{padding:0;gap:2px;min-width:0}
  .app-shell.chat-view .nav-item{padding:6px 4px;min-height:34px;font-size:12px;white-space:nowrap}
  /* Hidden while chatting: account strip, recent-chat list (switch via the header menu), footer. */
  .app-shell.chat-view .profile-strip,
  .app-shell.chat-view .list-heading,
  .app-shell.chat-view .conversation-list,
  .app-shell.chat-view .sidebar-foot{display:none}
  .app-shell.chat-view .chat-header{min-height:44px;padding:6px 12px;gap:8px}
  .app-shell.chat-view .chat-person{gap:8px}
  .app-shell.chat-view .chat-person .avatar{width:30px;height:30px;font-size:10px}
  .app-shell.chat-view .chat-person h2{margin:0;font-size:15px}
  .app-shell.chat-view .chat-person span{font-size:10px}
  .app-shell.chat-view .group-members-strip{padding:3px 12px}
  .app-shell.chat-view .group-strip-heading strong{font-size:12px}
  .app-shell.chat-view .chat-day{padding:2px 12px 2px}
  .app-shell.chat-view .messages{padding:0 10px 8px}
  .app-shell.chat-view .composer{margin:0 6px max(6px,env(safe-area-inset-bottom));padding:5px 6px}
}
/* Chat header: conversation switcher + account actions (needed because the sidebar list is hidden while chatting on phones) */
.chat-header-tools{position:relative;margin-left:auto;flex:0 0 auto}
.chat-switch{min-height:36px;padding:0 10px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:13px;cursor:pointer}
.chat-switch-menu{position:absolute;right:0;top:calc(100% + 6px);z-index:60;min-width:180px;max-width:min(260px,calc(100vw - 24px));max-height:60dvh;overflow-y:auto;padding:6px;background:#fff;border:1px solid var(--line);box-shadow:0 10px 30px rgba(10,18,22,.18)}
.chat-switch-menu[hidden]{display:none}
.chat-switch-menu button{display:block;width:100%;min-height:42px;padding:8px 10px;border:0;background:none;color:var(--ink);font-size:14px;text-align:left;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-switch-menu button.active{background:rgba(31,90,90,.1);font-weight:700}
.chat-switch-menu hr{margin:4px 0;border:0;border-top:1px solid var(--line)}
@media(min-width:821px){.chat-header-tools{display:none}}
/* Image safety net: nothing inside a message can be wider than its bubble or the screen. */
/* No double-tap / pinch zoom of the page (it breaks the app-like layout). */
html,body{touch-action:manipulation;-webkit-text-size-adjust:100%;text-size-adjust:100%}
/* Inputs under 16px make iOS Safari zoom on focus. */
input,select,textarea{font-size:max(16px,1em)}
.message-bubble-wrap{overflow-wrap:anywhere}
.message-image-link{cursor:zoom-in}
/* Full-screen preview: image always fits the visible viewport (dvh handles mobile browser bars). */
body.lightbox-open{overflow:hidden}
.lightbox{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:max(12px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) max(48px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));background:rgba(10,18,22,.92)}
.lightbox img{display:block;max-width:100%;max-height:calc(100vh - 72px);max-height:calc(100dvh - 72px);width:auto;height:auto;object-fit:contain}
.lightbox-close{position:absolute;top:max(10px,env(safe-area-inset-top));right:max(10px,env(safe-area-inset-right));min-width:44px;min-height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.18);color:#fff;font-size:28px;line-height:1;cursor:pointer}
.lightbox-original{position:absolute;bottom:max(12px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);color:#fff;font-size:13px;opacity:.85;white-space:nowrap}

/* Mobile chat uses the full viewport; navigation opens as a drawer instead of
   consuming a permanent row above the message history. */
.mobile-sidebar-backdrop,.mobile-nav-toggle{display:none}
.file-picker-input{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.composer-icon{display:grid;place-items:center;flex:0 0 38px;min-width:38px;min-height:38px;padding:0;border:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
.composer-icon:disabled{opacity:.45;cursor:wait}
@media(max-width:820px){
  .app-shell.chat-view{position:relative;grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr);height:100vh;height:100dvh;min-height:0;overflow:hidden}
  .app-shell.chat-view .main-panel{grid-column:1;grid-row:1;width:100%;height:100%;min-width:0;min-height:0;overflow:hidden}
  .app-shell.chat-view .sidebar{position:absolute;z-index:82;top:0;bottom:0;left:0;display:flex;width:min(88vw,340px);max-width:calc(100vw - 52px);height:100%;min-height:0;padding:max(14px,env(safe-area-inset-top)) 15px max(14px,env(safe-area-inset-bottom));overflow-x:hidden;overflow-y:auto;border-right:1px solid var(--line);border-bottom:0;box-shadow:16px 0 38px rgba(18,39,44,.16);transform:translateX(-105%);visibility:hidden;transition:transform .2s ease,visibility .2s ease}
  .app-shell.chat-view.mobile-sidebar-open .sidebar{transform:translateX(0);visibility:visible}
  .app-shell.chat-view .sidebar-top{display:flex;justify-content:space-between;align-items:center;margin:0 0 12px;padding:0 4px 12px;border-bottom:1px solid var(--line)}
  .app-shell.chat-view .brand-lockup{font-size:16px;gap:8px}
  .app-shell.chat-view .profile-strip{display:flex;gap:9px;padding:10px 4px}
  .app-shell.chat-view .profile-strip>div:not(.account-tools){min-width:0;flex:1}
  .app-shell.chat-view .profile-strip strong{max-width:190px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .app-shell.chat-view .main-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px;padding:10px 0}
  .app-shell.chat-view .main-nav .nav-item{justify-content:flex-start;min-height:40px;padding:8px 10px;white-space:nowrap}
  .app-shell.chat-view .list-heading{display:flex;min-height:38px;padding:7px 4px}
  .app-shell.chat-view .sidebar .conversation-list,.app-shell.chat-view .sidebar .review-list,.app-shell.chat-view .sidebar .members-list{display:flex;flex:1 1 auto;flex-direction:column;max-height:none;min-height:90px;overflow-x:hidden;overflow-y:auto;padding-bottom:6px}
  .app-shell.chat-view .sidebar .conversation-item,.app-shell.chat-view .sidebar .review-item,.app-shell.chat-view .sidebar .member-row{flex:0 0 auto;min-width:0}
  .app-shell.chat-view .sidebar .conversation-item{min-height:58px}
  .app-shell.chat-view .sidebar-foot{display:flex;margin-top:auto;padding-top:12px}
  .app-shell.chat-view .mobile-sidebar-backdrop{position:absolute;inset:0;z-index:81;display:none;width:100%;height:100%;padding:0;background:rgba(15,31,36,.44);border:0;touch-action:manipulation}
  .app-shell.chat-view.mobile-sidebar-open .mobile-sidebar-backdrop{display:block}
  .app-shell.chat-view .chat-header{min-height:58px;padding:max(7px,env(safe-area-inset-top)) 10px 7px;gap:8px}
  .app-shell.chat-view .mobile-nav-toggle{display:grid;place-items:center;flex:0 0 38px;width:38px;height:38px;padding:0;border:1px solid var(--line);background:#fffdf9;color:var(--ink);font-size:17px;line-height:1}
  .app-shell.chat-view .chat-person{flex:1;min-width:0;gap:8px}
  .app-shell.chat-view .chat-person .avatar{width:34px;height:34px;font-size:11px}
  .app-shell.chat-view .chat-person>div{min-width:0;overflow:hidden}
  .app-shell.chat-view .chat-person h2{max-width:100%;margin:0 0 2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}
  .app-shell.chat-view .chat-person span{display:block;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:10px}
  .app-shell.chat-view .chat-header-tools{margin-left:0}
  .app-shell.chat-view .chat-switch{min-height:38px;padding:0 8px;font-size:12px}
  .app-shell.chat-view .chat-header-tools .chat-switch-menu{right:0}
  .app-shell.chat-view .group-members-strip{padding:5px 10px}
  .app-shell.chat-view .group-strip-heading{gap:8px;margin-bottom:2px}
  .app-shell.chat-view .group-strip-heading strong{font-size:11px}
  .app-shell.chat-view .group-strip-note{display:none}
  .app-shell.chat-view .member-chip-list{gap:5px;padding-bottom:1px}
  .app-shell.chat-view .member-chip{gap:5px;padding:4px 6px}
  .app-shell.chat-view .member-chip .avatar{width:24px;height:24px}
  .app-shell.chat-view .member-chip small{display:none}
  .app-shell.chat-view .chat-day{padding:6px 10px 5px}
  .app-shell.chat-view .messages{padding:0 10px 8px}
  .app-shell.chat-view .composer{display:grid;grid-template-columns:38px minmax(0,1fr) 40px;gap:4px 6px;min-height:0;margin:0 8px max(8px,env(safe-area-inset-bottom));padding:6px 7px}
  .app-shell.chat-view .composer input[name="message"]{width:100%;min-height:38px;font-size:16px}
  .app-shell.chat-view .ttl-select{grid-column:1/-1;grid-row:2;width:100%;max-width:none;padding:6px 2px;border-top:1px solid var(--line);border-left:0;font-size:12px}
  .app-shell.chat-view .composer-icon{grid-column:1;grid-row:1}
  .app-shell.chat-view .send-button{grid-column:3;grid-row:1;min-width:40px;min-height:40px}
}

/* Image lightbox keeps original pixels available for interactive zoom. */
.lightbox{overflow:hidden}.lightbox-image{touch-action:none;user-select:none;-webkit-user-drag:none;will-change:transform}.lightbox-image.zoomed{cursor:grab}

/* Permanent message deletion: every conversation member sees the same action. */
.delete-button{margin-left:6px;padding:0;background:transparent;color:#9aa09e;font-size:10px;text-decoration:underline;text-underline-offset:2px}
.delete-button:hover{color:var(--danger)}

/* WeChat-inspired entry screen: quiet gray canvas, green identity mark, compact form. */
.wechat-auth{--wechat-green:#07c160;--wechat-green-dark:#06ae56;--wechat-bg:#ededed;--wechat-text:#191919;--wechat-muted:#8b8b8b;--wechat-line:#e3e3e3;min-height:100vh;display:flex;flex-direction:column;background:var(--wechat-bg);color:var(--wechat-text)}
.wechat-auth-top{display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 clamp(20px,5vw,64px);background:#fff;border-bottom:1px solid var(--wechat-line)}
.wechat-auth-brand{display:flex;align-items:center;gap:9px;font-size:18px;letter-spacing:-.03em}
.wechat-auth-brand strong{font-weight:600}
.wechat-auth-top .wechat-auth-brand{font-size:16px}
.wechat-auth-top .wechat-auth-brand .wechat-logo{width:30px;height:30px;font-size:15px;border-radius:9px;box-shadow:none}
.wechat-logo{display:grid;place-items:center;width:62px;height:62px;border-radius:16px;background:var(--wechat-green);color:#fff;font-size:31px;font-weight:700;line-height:1;box-shadow:0 7px 18px rgba(7,193,96,.2)}
.wechat-auth-state{color:var(--wechat-muted);font-size:12px}
.wechat-auth-main{display:flex;flex:1;flex-direction:column;align-items:center;padding:54px 20px 40px}
.wechat-auth-identity{display:grid;justify-items:center;gap:13px;margin-bottom:24px;text-align:center}
.wechat-auth-identity h1{margin:0;font-size:25px;font-weight:600;letter-spacing:-.04em}
.wechat-auth-identity p{margin:0;color:var(--wechat-muted);font-size:13px}
.wechat-auth .auth-card{width:min(100%,390px);padding:30px 32px 25px;background:#fff;border:1px solid rgba(0,0,0,.04);border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,.04)}
.wechat-auth .auth-head{display:none}
.wechat-auth .form-intro{margin-bottom:23px}
.wechat-auth .form-intro .eyebrow{display:none}
.wechat-auth .form-intro h2{margin:0 0 8px;font-size:23px;line-height:1.25;letter-spacing:-.03em;font-weight:600}
.wechat-auth .form-intro p{margin:0;color:var(--wechat-muted);font-size:13px;line-height:1.65}
.wechat-auth .auth-form{gap:13px}
.wechat-auth .auth-form label{gap:7px;color:#5f5f5f;font-size:12px;font-weight:500}
.wechat-auth .auth-form input{width:100%;padding:12px 13px;border:1px solid var(--wechat-line);border-radius:4px;background:#fafafa;color:var(--wechat-text);font-size:14px;transition:border-color .16s,background .16s,box-shadow .16s}
.wechat-auth .auth-form input:focus{border-color:var(--wechat-green);background:#fff;box-shadow:0 0 0 3px rgba(7,193,96,.12);outline:0}
.wechat-auth .auth-form input::placeholder{color:#b5b5b5}
.wechat-auth .primary-button{justify-content:center;margin-top:8px;padding:12px 16px;border-radius:4px;background:var(--wechat-green);font-size:14px;font-weight:600;transition:background .16s,transform .16s}
.wechat-auth .primary-button:hover{background:var(--wechat-green-dark);transform:none}
.wechat-auth .primary-button span{display:none}
.wechat-auth .auth-switch{margin:20px 0 0;color:var(--wechat-muted);font-size:12px;text-align:center}
.wechat-auth .link-button{color:#576b95;text-decoration:none}
.wechat-auth .link-button:hover{color:var(--wechat-green-dark)}
.wechat-auth .demo-hint{margin:20px 0 0;padding-top:17px;border-top:1px solid #f0f0f0;color:#a0a0a0;font-size:11px;line-height:1.7;text-align:center}
.wechat-auth .form-message{min-height:18px;margin-top:1px;font-size:12px}
.wechat-auth .form-message.success{color:var(--wechat-green-dark)}
.wechat-auth-foot{padding:0 20px 26px;color:#aaa;font-size:11px;text-align:center}
@media(max-width:560px){.wechat-auth-top{height:56px;padding:0 18px}.wechat-auth-state{font-size:11px}.wechat-auth-main{padding:40px 16px 28px}.wechat-auth-identity{margin-bottom:20px}.wechat-auth .auth-card{padding:26px 22px 22px}.wechat-auth-foot{padding-bottom:18px}}
@media(prefers-reduced-motion:reduce){.wechat-auth .auth-form input,.wechat-auth .primary-button{transition:none}}

/* The chat renders a small viewport of bubbles and sizes the virtual gaps. */
.messages{display:flex;flex-direction:column;overflow-anchor:none;scroll-behavior:auto}
.message-virtual-spacer{flex:0 0 auto;width:100%;pointer-events:none}
.message-row{flex:0 0 auto}
.history-button{flex:none;align-self:center}


.message-loading{display:grid;place-items:center;min-height:120px;color:#9aa39f;font-size:13px}
.message-load-error{display:flex;align-items:center;justify-content:center;gap:12px;min-height:64px;padding:12px 16px;color:#a54d45;font-size:13px;text-align:center}
.message-load-error button{flex:none;padding:7px 14px;border:1px solid #d9aaa5;border-radius:8px;background:#fff;color:#a54d45;cursor:pointer}