:root{--ink:#172033;--muted:#697386;--line:#e7e9f0;--brand:#6256e8;--brand2:#8e74ff;--bg:#f6f7fb}*{box-sizing:border-box}body{margin:0;font:15px/1.45 Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--bg)}button,input,textarea{font:inherit}.shell{min-height:100vh;display:grid;grid-template-columns:240px 1fr}aside{background:#15172a;color:white;padding:28px 18px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:10px;font-weight:750;font-size:21px}.brand-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand2),var(--brand));color:white}.compose,main header>button,form button{border:0;border-radius:11px;background:var(--brand);color:#fff;padding:11px 16px;font-weight:650;cursor:pointer}.compose{margin:36px 0 20px}nav{display:grid;gap:7px}nav a,nav button{color:#c9cada;text-decoration:none;background:transparent;border:0;text-align:left;padding:11px 13px;border-radius:9px;cursor:pointer}nav .active,nav a:hover,nav button:hover{background:#292c47;color:white}.account{margin-top:auto;display:grid}.account small{color:#9ea2ba}.account form button{background:transparent;padding:8px 0;color:#aaaec2}main{padding:30px;min-width:0}main header{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}h1,h2,p{margin-top:0}header p{color:var(--muted)}.mail-layout{display:grid;grid-template-columns:minmax(330px,42%) 1fr;background:white;border:1px solid var(--line);border-radius:17px;min-height:70vh;overflow:hidden}.message-list{border-right:1px solid var(--line)}.message-row{display:grid;grid-template-columns:42px 1fr auto;gap:12px;padding:15px;border-bottom:1px solid var(--line);text-decoration:none;color:inherit}.message-row:hover{background:#f8f8fd}.message-row span:nth-child(2){display:grid;min-width:0}.message-row strong,.message-row em{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-row em{font-style:normal;color:var(--muted)}.message-row time{font-size:12px;color:var(--muted)}.message-row:not(.unread) strong{font-weight:500}.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:#eceafd;color:var(--brand);font-weight:700}.reader{padding:28px}.reader pre{font:inherit;white-space:pre-wrap}.empty{height:60vh;display:grid;place-items:center;color:var(--muted)}.alert,.notice{padding:12px 14px;border-radius:10px;margin-bottom:14px}.alert{background:#fff0f0;color:#a72424}.notice{background:#edfff4;color:#176c3b}dialog{border:0;border-radius:18px;padding:0;width:min(620px,calc(100% - 30px));box-shadow:0 24px 80px #16182d44}dialog::backdrop{background:#11132988}dialog form{padding:23px;display:grid;gap:15px}dialog header,dialog footer{display:flex;justify-content:space-between;align-items:center}dialog header button,.secondary{background:#eef0f5;color:var(--ink)}label{display:grid;gap:7px;font-weight:600}input,textarea{border:1px solid #d9dce5;border-radius:9px;padding:11px;outline:none}input:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px #6256e822}.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 70% 20%,#ddd8ff,transparent 35%),var(--bg)}.login-card{width:min(420px,calc(100% - 30px));background:white;border:1px solid var(--line);border-radius:22px;padding:35px;box-shadow:0 24px 80px #1c20351a}.login-card h1{margin-top:35px}.login-card form{display:grid;gap:16px}.calendar-toolbar{display:flex;justify-content:center;align-items:center;gap:20px}.calendar-toolbar button{border:1px solid var(--line);background:white;border-radius:9px;padding:7px 12px}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);background:white;border:1px solid var(--line);border-radius:15px;overflow:hidden}.calendar-day{min-height:110px;padding:8px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.calendar-day strong{display:block;margin-bottom:5px}.event{display:block;background:#eeecff;color:#493fc2;border-radius:6px;padding:4px 6px;font-size:12px;margin-bottom:4px}.dav-hint{margin-top:18px;color:var(--muted)}@media(max-width:850px){.shell{grid-template-columns:1fr}aside{position:sticky;top:0;z-index:3;display:grid;grid-template-columns:1fr auto auto;padding:12px}.compose{margin:0}.account{display:none}nav{display:flex}.mail-layout{grid-template-columns:1fr}.reader{display:none}main{padding:18px}}