:root{--navy:#001d3d;--blue:#008dce;--blue-dark:#006c9f;--ink:#102235;--muted:#637284;--line:#dce3e8;--wash:#f3f7f9;--white:#fff;--green:#147d64;--amber:#b86b00;--red:#a23535;--shadow:0 16px 45px rgba(0,29,61,.08)}*{box-sizing:border-box}html{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--wash)}body{margin:0;min-height:100vh}a{color:inherit}button,input,textarea,select{font:inherit}.app-header{height:74px;background:var(--navy);color:#fff;display:flex;align-items:center;padding:0 max(24px,calc((100vw - 1440px)/2));gap:44px;position:sticky;top:0;z-index:10;box-shadow:0 2px 18px #001d3d30}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;min-width:max-content}.brand-mark,.seal{width:38px;height:38px;border:2px solid #57c9f4;border-radius:50%;display:grid;place-items:center;color:#57c9f4;font-size:22px}.brand b{display:block;letter-spacing:.16em;font-size:15px}.brand small{display:block;font-size:11px;color:#b8ccdc;margin-top:1px}.app-header nav{display:flex;align-self:stretch;gap:6px}.app-header nav a{display:flex;align-items:center;padding:0 16px;text-decoration:none;color:#bfd0dc;border-bottom:3px solid transparent;font-size:14px;font-weight:650}.app-header nav a:hover,.app-header nav a.active{color:#fff;border-color:#43b9e9}.account{margin-left:auto;display:flex;align-items:center;gap:14px;font-size:13px}.text-button{border:0;background:none;color:#a9c4d7;text-decoration:underline;cursor:pointer;padding:8px}.app-main{max-width:1440px;margin:auto;padding:34px 28px 80px}.auth-main{min-height:100vh;display:grid;place-items:center;padding:28px;background:radial-gradient(circle at 78% 22%,#008dce24,transparent 34%),linear-gradient(140deg,#001d3d 0 46%,#f3f7f9 46%)}.auth-card{width:min(440px,100%);background:#fff;border:1px solid #dce3e8;border-top:5px solid var(--blue);padding:42px;border-radius:4px;box-shadow:0 28px 80px #001d3d3b}.auth-card .seal{background:var(--navy);margin-bottom:26px}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-weight:750;font-size:11px;color:var(--blue-dark);margin:0 0 8px}.auth-card h1,.page-head h1,.thread-head h1,.compose-card h1{font-family:Georgia,serif;color:var(--navy);font-weight:500;line-height:1.05;margin:0}.auth-card h1{font-size:38px}.auth-card>p:not(.eyebrow){color:var(--muted);line-height:1.6}.auth-card form{display:grid;gap:18px;margin:28px 0 20px}.auth-card>small{color:#7c8995}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}.page-head.compact{align-items:center}.page-head h1,.thread-head h1,.compose-card h1{font-size:clamp(32px,4vw,48px)}.page-head p:last-child,.thread-head p:last-child{color:var(--muted);margin:8px 0 0}.primary,.secondary{border:0;border-radius:3px;padding:12px 18px;font-weight:750;text-decoration:none;display:inline-flex;justify-content:center;align-items:center;cursor:pointer;min-height:44px}.primary{background:var(--blue);color:#fff}.primary:hover{background:var(--blue-dark)}.secondary{background:#fff;color:var(--navy);border:1px solid #c7d3dc}.wide{width:100%}button:disabled{opacity:.5;cursor:not-allowed}.button-row{display:flex;gap:10px;align-items:center}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px}.stat-grid a{background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue);padding:20px;text-decoration:none;box-shadow:var(--shadow)}.stat-grid span{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.09em;font-weight:700}.stat-grid b{display:block;font:500 38px Georgia,serif;color:var(--navy);margin:6px 0}.stat-grid small{color:var(--muted)}.panel,.compose-card,.reply-card,.thread-aside section{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--line)}.panel-head h2,.reply-card h2,.thread-aside h2,.team-form h2{font:500 23px Georgia,serif;color:var(--navy);margin:0}.thread-list{display:grid}.thread-row{display:grid;grid-template-columns:44px minmax(0,1fr) auto;align-items:center;gap:14px;padding:16px 20px;text-decoration:none;border-bottom:1px solid #e7ecef}.thread-row:last-child{border-bottom:0}.thread-row:hover{background:#f8fbfc}.thread-row.unread{box-shadow:inset 4px 0 var(--blue);background:#f7fcff}.avatar{width:38px;height:38px;border-radius:50%;background:#dcecf4;color:var(--navy);display:grid;place-items:center;font-weight:800}.thread-copy{display:grid;gap:3px;min-width:0}.thread-meta{display:flex;justify-content:space-between;gap:12px}.thread-meta b,.thread-subject,.thread-snippet{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.thread-meta time{font-size:12px;color:var(--muted);font-weight:500}.thread-subject{font-size:14px}.thread-snippet{font-size:12px;color:var(--muted)}.status{font-size:11px;font-weight:750;padding:5px 8px;border-radius:99px;background:#e6edf1;color:#4e5d68}.status.new{background:#dff2fb;color:#005f89}.status.in_progress{background:#e6ebfa;color:#3a4f8b}.status.waiting{background:#fff0d9;color:#885300}.status.closed{background:#e3eee9;color:#376657}.empty{display:grid;text-align:center;gap:6px;padding:56px 20px;color:var(--muted)}.empty b{color:var(--navy);font:500 22px Georgia,serif}.connection-banner,.flash{display:flex;gap:10px;align-items:center;padding:12px 16px;margin-bottom:22px;border-left:4px solid var(--amber);background:#fff4df;font-size:13px}.connection-banner span{color:#6f5b39}.flash.success{border-color:var(--green);background:#e9f6f1}.flash.error,.form-error{border-left:4px solid var(--red);background:#fff0f0;color:#762626;padding:12px 14px;margin:16px 0}.mail-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:20px}.filters{display:grid;align-content:start;gap:18px}.chips{display:flex;flex-wrap:wrap;gap:7px}.chip,.filter-link{padding:8px 11px;border:1px solid #ccd7de;background:#fff;text-decoration:none;font-size:12px;font-weight:700;border-radius:99px}.chip.active,.filter-link.active{background:var(--navy);color:#fff;border-color:var(--navy)}.filter-link{border-radius:3px}.search label,.select-label{font-size:11px;text-transform:uppercase;letter-spacing:.09em;font-weight:750;color:var(--muted)}.search>div{display:flex;margin-top:6px}.search input{min-width:0;border-radius:3px 0 0 3px}.search button{border:1px solid #b8c7d1;border-left:0;background:#fff;border-radius:0 3px 3px 0;width:42px}.select-label{display:grid;gap:6px}.back{display:inline-block;color:var(--blue-dark);font-weight:700;font-size:13px;margin-bottom:22px}.thread-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px}.star{border:0;background:none;color:#d58c00;font-size:34px;cursor:pointer}.thread-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px}.messages{display:grid;gap:14px}.message{background:#fff;border:1px solid var(--line);box-shadow:0 7px 24px #001d3d09}.message.outbound{border-left:4px solid var(--blue)}.message.inbound{border-left:4px solid #93a3ad}.message header{display:flex;justify-content:space-between;gap:20px;padding:16px 20px;background:#f8fafb;border-bottom:1px solid #e6ecef}.message header div{display:grid}.message header span,.message header time{font-size:12px;color:var(--muted)}.message-body{padding:22px;line-height:1.65;overflow:auto}.message-body img{max-width:100%;height:auto}.attachments{display:flex;gap:8px;flex-wrap:wrap;padding:0 20px 18px}.attachments a{background:#eef5f8;border-radius:3px;padding:8px 10px;text-decoration:none;font-size:12px}.reply-card{margin-top:20px;padding:22px}.reply-card h2{margin-bottom:18px}.thread-aside{display:grid;align-content:start;gap:16px}.thread-aside section{padding:18px}.thread-aside form,.team-form form{display:grid;gap:14px;margin-top:16px}.timeline{list-style:none;padding:0;display:grid;gap:14px}.timeline li{display:grid;border-left:2px solid #b9dbe9;padding-left:12px;font-size:12px}.timeline span,.timeline time{color:var(--muted)}.compose-card{max-width:940px;padding:28px}.compose-card form{display:grid;gap:18px;margin-top:28px}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}label{display:grid;gap:6px;font-size:12px;color:#4e6070;font-weight:700}input,textarea,select{width:100%;border:1px solid #b8c7d1;border-radius:3px;padding:11px 12px;background:#fff;color:var(--ink)}input:focus,textarea:focus,select:focus{outline:3px solid #008dce2e;border-color:var(--blue)}textarea{resize:vertical;line-height:1.5}.file-label{border:1px dashed #a9beca;padding:14px;background:#f8fbfc}.file-label input{border:0;padding:6px 0}.form-actions{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}.team-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:20px}.user-list>div{display:flex;align-items:center;gap:12px;padding:15px 20px;border-bottom:1px solid var(--line)}.user-list>div:last-child{border-bottom:0}.user-list>div>span:nth-child(2){display:grid}.user-list small{color:var(--muted)}.live-dot,.off-dot{margin-left:auto;font-size:11px;font-weight:750;color:var(--green)}.off-dot{color:var(--red)}.team-form{padding:22px}.muted{color:var(--muted);font-size:12px;line-height:1.5}.error-page{min-height:60vh;display:grid;place-content:center;text-align:center;justify-items:center}.error-page>span{font:500 90px Georgia,serif;color:#bed6e1}.error-page h1{font:500 28px Georgia,serif;color:var(--navy);margin:0 0 24px}@media(max-width:850px){.app-header{height:auto;min-height:64px;padding:10px 16px;gap:10px;flex-wrap:wrap}.brand{flex:1}.account>span{display:none}.app-header nav{order:3;width:100%;height:44px;overflow-x:auto}.app-header nav a{padding:0 14px}.app-main{padding:24px 14px 60px}.page-head{align-items:flex-start}.stat-grid{grid-template-columns:1fr 1fr}.mail-layout,.thread-layout,.team-grid{grid-template-columns:1fr}.filters{grid-template-columns:1fr 1fr}.filters .chips,.filters .search{grid-column:1/-1}.thread-aside{grid-row:1}.field-row{grid-template-columns:1fr}.auth-main{background:var(--navy)}.auth-card{padding:30px 24px}.thread-row{grid-template-columns:38px minmax(0,1fr)}.thread-row>.status{grid-column:2;justify-self:start}.button-row{flex-wrap:wrap}}@media(max-width:520px){.page-head{display:grid}.page-head>.primary{width:100%}.stat-grid{grid-template-columns:1fr 1fr;gap:10px}.stat-grid a{padding:15px}.mail-layout{display:block}.filters{display:flex;overflow-x:auto;margin-bottom:14px;padding-bottom:6px}.filters .search,.filters .select-label{min-width:240px}.inbox-panel{margin:0 -14px;border-left:0;border-right:0}.thread-row{padding:14px}.thread-meta time{display:none}.thread-head h1{font-size:30px}.message header{display:grid}.form-actions{display:grid;gap:12px}.form-actions .primary{width:100%}.compose-card,.reply-card{padding:20px;margin-left:-14px;margin-right:-14px;border-left:0;border-right:0}.button-row form,.button-row a{flex:1}.button-row button{width:100%}}
/* PWA controls */
.pwa-controls{display:flex;gap:7px}.header-action{border:1px solid #52718a;background:#0b3155;color:#e6f5fb;border-radius:99px;min-height:34px;padding:6px 11px;font-size:12px;font-weight:750;cursor:pointer}.header-action[aria-pressed="true"]{border-color:#57c9f4;background:#075c7d}.header-action:disabled{opacity:.7}
/* Authentication links */
.auth-link{display:block;text-align:center;color:#006c9f;font-size:13px;font-weight:700;margin-top:16px}

/* Personalized outbound signature preview */
.signature-preview{display:flex;align-items:flex-start;gap:12px;padding:13px;border-left:3px solid var(--blue);background:#f5f9fc;border-radius:0 10px 10px 0;color:var(--navy)}
.signature-preview img{border-radius:11px;flex:0 0 auto}
.signature-preview span{display:grid;gap:1px;min-width:0}
.signature-preview b{font-size:.95rem}
.signature-preview small{color:var(--muted);overflow-wrap:anywhere}
.signature-preview em{margin-top:4px;color:var(--blue-dark);font-size:.73rem;font-style:normal;font-weight:700;text-transform:uppercase;letter-spacing:.04em}