:root{--bg:#f3f5fa;--surface:#fff;--surface-soft:#f8f9fc;--text:#172033;--muted:#6f788b;--border:#e2e6ef;--accent:#3159d8;--accent-soft:#eef2ff;--danger:#c33d45;--shadow:0 24px 70px rgba(31,42,68,.10);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 5% 0,#e9efff 0,transparent 28%),var(--bg)}button,input{font:inherit}button{cursor:pointer}.hidden{display:none!important}.app-shell{max-width:1440px;margin:0 auto;padding:clamp(18px,3vw,44px);min-height:100vh}.eyebrow{font-size:11px;line-height:1.2;font-weight:800;letter-spacing:.14em;color:var(--accent);margin-bottom:10px}.auth-card,.home-card{width:min(100%,680px);margin:8vh auto;background:rgba(255,255,255,.94);border:1px solid rgba(255,255,255,.9);border-radius:26px;padding:clamp(26px,5vw,52px);box-shadow:var(--shadow);backdrop-filter:blur(14px)}.auth-card{width:min(100%,460px)}.brand-mark{display:grid;place-items:center;width:46px;height:46px;margin-bottom:28px;border-radius:14px;background:linear-gradient(135deg,#3159d8,#6d53d9);color:white;font-size:21px;font-weight:900;box-shadow:0 10px 24px rgba(49,89,216,.24)}h1,h2,h3,p{margin-top:0}.auth-card h1,.home-card h1{font-size:clamp(28px,4vw,40px);letter-spacing:-.04em;margin-bottom:12px}.auth-card>p,.home-card p{color:var(--muted);line-height:1.65}.stack-form{display:grid;gap:10px;margin-top:28px}.stack-form label{font-size:13px;font-weight:750}.stack-form input,.address-field{border:1px solid var(--border);background:var(--surface);border-radius:13px;transition:border-color .18s,box-shadow .18s}.stack-form input{padding:15px 16px;outline:none}.stack-form input:focus,.address-field:focus-within{border-color:#89a2ee;box-shadow:0 0 0 4px rgba(49,89,216,.1)}button{border:0;border-radius:12px;padding:13px 17px;font-weight:760;transition:transform .15s,filter .15s,background .15s}button:disabled{cursor:wait;opacity:.6}.primary{background:linear-gradient(135deg,#3159d8,#4b63d4);color:white;box-shadow:0 8px 20px rgba(49,89,216,.2)}.primary:hover:not(:disabled){filter:brightness(.97);transform:translateY(-1px)}.ghost,.icon-button{background:var(--surface-soft);color:#44506a;border:1px solid var(--border)}.ghost:hover,.icon-button:hover{background:#eef1f7}.error{min-height:20px;margin-top:12px;color:var(--danger);font-size:14px}.home-head,.inbox-header,.header-left,.header-actions,.reader-meta,.message-row{display:flex;align-items:center}.home-head,.inbox-header{justify-content:space-between;gap:22px}.address-form{display:grid;grid-template-columns:1fr auto;gap:12px;margin-top:32px}.address-field{display:flex;align-items:center;overflow:hidden}.address-field input{flex:1;min-width:0;padding:15px 2px 15px 16px;border:0;outline:0;font-weight:720;background:transparent}.address-field span{padding-right:16px;color:var(--muted);font-weight:650}.recent{margin-top:32px}.recent h3{font-size:13px;color:#4f5a70}.recent-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.recent-item{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:11px;text-align:left;background:var(--surface-soft);color:var(--text);border:1px solid var(--border)}.recent-item:hover{background:var(--accent-soft);border-color:#cdd7fa}.recent-avatar,.sender-avatar,.reader-avatar{display:grid;place-items:center;border-radius:50%;font-weight:800}.recent-avatar{width:34px;height:34px;background:#e5eafd;color:var(--accent)}.recent-item strong,.recent-item small{display:block}.recent-item small{margin-top:2px;color:var(--muted)}.recent-arrow{color:#8791a5}.inbox-screen{height:calc(100vh - clamp(36px,6vw,88px));display:flex;flex-direction:column}.inbox-header{padding:4px 4px 20px}.header-left{gap:14px}.header-left h1{margin:0;font-size:clamp(19px,2.4vw,27px);letter-spacing:-.03em}.header-left .eyebrow{margin-bottom:4px}.icon-button{width:43px;height:43px;padding:0;font-size:21px}.header-actions{gap:12px}.sync-status{font-size:13px;color:var(--muted)}.mail-layout{flex:1;min-height:0;display:grid;grid-template-columns:minmax(330px,390px) minmax(0,1fr);background:var(--surface);border:1px solid var(--border);border-radius:20px;overflow:hidden;box-shadow:0 14px 50px rgba(31,42,68,.08)}.message-panel{min-height:0;display:flex;flex-direction:column;border-right:1px solid var(--border);background:var(--surface-soft)}.panel-title{display:flex;align-items:center;justify-content:space-between;padding:18px 20px 13px;font-weight:800;font-size:14px}.count{display:grid;place-items:center;min-width:25px;height:25px;border-radius:20px;background:#e8ecf5;color:#657087;font-size:12px}.message-list{overflow:auto;padding:0 10px 12px}.message-item{position:relative;width:100%;display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;text-align:left;background:transparent;color:var(--text);border:1px solid transparent;border-radius:13px;padding:13px 11px;margin-bottom:4px}.message-item:hover{background:#fff;border-color:#e7eaf1}.message-item.active{background:#fff;border-color:#cfd8f6;box-shadow:0 7px 20px rgba(41,65,132,.08)}.message-item.active:before{content:"";position:absolute;left:-10px;top:13px;bottom:13px;width:3px;border-radius:4px;background:var(--accent)}.sender-avatar,.reader-avatar{width:36px;height:36px;background:#e7ebf8;color:#4c5e91}.message-main{min-width:0}.message-row{justify-content:space-between;gap:8px}.message-row strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-row time{flex:none;font-size:11px;color:#8a93a5}.message-main>b{display:block;margin-top:4px;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-main>small{display:block;margin-top:5px;color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.attachment{position:absolute;right:12px;bottom:7px;color:#818b9e}.list-empty,.reader-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--muted)}.list-empty{padding:70px 20px;gap:7px}.list-empty>div{font-size:32px}.list-empty strong{color:#505b70}.reader-panel{min-width:0;min-height:0;display:flex;flex-direction:column;background:#fff;overflow:hidden}.reader-empty{height:100%;padding:40px}.reader-empty h2{margin:14px 0 6px;color:#48546b;font-size:18px}.reader-empty p{margin:0}.reader-empty.compact{min-height:220px}.empty-icon{display:grid;place-items:center;width:54px;height:54px;border-radius:17px;background:var(--accent-soft);color:var(--accent);font-size:23px}.error-icon{background:#fff0f0;color:var(--danger)}.reader-header{padding:clamp(22px,3vw,36px);border-bottom:1px solid var(--border)}.reader-header h2{font-size:clamp(20px,2.5vw,29px);letter-spacing:-.03em;margin-bottom:23px}.reader-meta{gap:12px}.reader-meta>div:nth-child(2){min-width:0;flex:1}.reader-meta strong,.reader-meta span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reader-meta strong{font-size:13px}.reader-meta span,.reader-meta time{margin-top:4px;color:var(--muted);font-size:12px}.reader-meta time{flex:none}.reader-body{flex:1;min-height:0;overflow:auto;background:#fff}.mail-text{margin:0;padding:clamp(24px,4vw,42px);font:15px/1.72 ui-sans-serif,system-ui,sans-serif;white-space:pre-wrap;overflow-wrap:anywhere;color:#273044}.mail-html{display:block;width:100%;height:100%;min-height:480px;border:0;background:#fff}.reader-loading{padding:38px;display:grid;gap:13px}.reader-loading span{display:block;height:16px;border-radius:8px;background:linear-gradient(90deg,#f0f2f6 25%,#e5e9f1 50%,#f0f2f6 75%);background-size:200% 100%;animation:shimmer 1.4s infinite}.reader-loading span:first-child{width:62%;height:27px}.reader-loading span:nth-child(2){width:38%}.reader-loading span:nth-child(3){width:86%;margin-top:22px}@keyframes shimmer{to{background-position:-200% 0}}button:focus-visible,input:focus-visible{outline:3px solid rgba(49,89,216,.3);outline-offset:2px}@media(max-width:780px){.app-shell{padding:12px}.auth-card,.home-card{margin:2vh auto;border-radius:20px}.home-head{align-items:flex-start}.address-form{grid-template-columns:1fr}.recent-list{grid-template-columns:1fr}.inbox-screen{height:calc(100vh - 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