:root{
  --bg:#f5f7fb;--surface:#fff;--surface-soft:#f8fafc;--surface-strong:#eef2f7;
  --text:#111827;--muted:#667085;--line:#e7ebf2;--accent:#5b5cf0;--accent-dark:#4748d9;
  --success:#18a878;--danger:#dc4c64;--warning:#d99a21;--shadow:0 20px 60px rgba(15,23,42,.08);
  --shadow-sm:0 8px 24px rgba(15,23,42,.06);--radius:24px;--radius-sm:14px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
background:radial-gradient(circle at 80% -10%,rgba(91,92,240,.10),transparent 34%),var(--bg);color:var(--text);
-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body[data-theme=dark]{--bg:#090d14;--surface:#101620;--surface-soft:#0d131c;--surface-strong:#171f2b;--text:#f4f6fb;--muted:#98a2b3;--line:#202b3a;--accent:#8586ff;--accent-dark:#7071ee;--shadow:0 24px 70px rgba(0,0,0,.32);--shadow-sm:0 10px 28px rgba(0,0,0,.2)}
body.modal-open{overflow:hidden}
a{color:inherit;text-decoration:none}button,input,select{font:inherit}
button{cursor:pointer}
.site-footer{display:none}

/* Shared brand */
.brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:850;letter-spacing:-.04em}
.brand>span:last-child>span{color:var(--accent)}
.brand-mark{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;color:#fff;
background:linear-gradient(145deg,var(--accent),#8a7df7);box-shadow:0 10px 24px rgba(91,92,240,.24);font-size:16px;font-weight:900}

/* Landing */
.landing{width:min(1240px,100%);margin:auto;padding:0 28px 48px}
.landing-nav{height:82px;display:flex;align-items:center;justify-content:space-between}
.nav-actions{display:flex;align-items:center;gap:6px}
.nav-link,.theme-mini{border:1px solid transparent;background:transparent;color:var(--muted);font-weight:750;padding:10px 13px;border-radius:12px}
.nav-link:hover,.theme-mini:hover{background:var(--surface);border-color:var(--line);color:var(--text)}
.theme-mini{font-size:18px}
.hero{min-height:650px;display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:70px;padding:58px 0 90px}
.hero-copy{max-width:640px}
.status-pill{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line);background:rgba(255,255,255,.72);
backdrop-filter:blur(12px);padding:8px 12px;border-radius:999px;font-size:11px;letter-spacing:.1em;font-weight:850;color:var(--muted)}
body[data-theme=dark] .status-pill{background:rgba(16,22,32,.75)}
.status-pill i,.tiny-live{width:7px;height:7px;background:var(--success);border-radius:50%;display:inline-block;box-shadow:0 0 0 4px rgba(24,168,120,.12)}
.hero h1{font-size:clamp(58px,7vw,94px);line-height:.9;letter-spacing:-.075em;margin:22px 0 26px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-lead{max-width:570px;font-size:18px;line-height:1.7;color:var(--muted);margin:0 0 30px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap}
.btn{border:0;border-radius:14px;padding:13px 18px;font-weight:800;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--accent),#7774ee);box-shadow:0 12px 25px rgba(91,92,240,.2)}
.btn-primary:hover{background:var(--accent-dark)}
.btn-secondary{color:var(--text);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.btn-full{width:100%;display:flex;align-items:center;justify-content:center;gap:8px}
.hero-card{position:relative}
.hero-card:before{content:"";position:absolute;inset:-35px -25px auto auto;width:180px;height:180px;border-radius:50%;
background:rgba(91,92,240,.12);filter:blur(18px);pointer-events:none}
.hero-window{position:relative;background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.9);
box-shadow:var(--shadow);border-radius:30px;overflow:hidden;backdrop-filter:blur(18px)}
body[data-theme=dark] .hero-window{background:rgba(16,22,32,.86);border-color:var(--line)}
.window-top{height:54px;display:flex;align-items:center;gap:7px;padding:0 18px;border-bottom:1px solid var(--line)}
.window-dot{width:8px;height:8px;border-radius:50%;background:var(--line)}
.window-title{margin-left:auto;margin-right:auto;font-size:11px;color:var(--muted);font-weight:750}
.window-body{padding:22px}
.preview-address{padding:14px 16px;border:1px solid var(--line);border-radius:16px;background:var(--surface-soft);font-weight:750;display:flex;justify-content:space-between;gap:12px}
.preview-address span:last-child{color:var(--accent);font-size:12px}
.preview-list{margin-top:13px;display:grid;gap:9px}
.preview-row{display:grid;grid-template-columns:40px 1fr auto;align-items:center;gap:12px;padding:14px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
.preview-avatar{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:var(--surface-strong);font-weight:850}
.preview-copy strong,.preview-copy span{display:block}.preview-copy span{font-size:12px;color:var(--muted);margin-top:3px}
.preview-time{font-size:11px;color:var(--muted)}
.feature-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.feature-card{padding:22px;border:1px solid var(--line);border-radius:20px;background:var(--surface);box-shadow:var(--shadow-sm)}
.feature-card b{display:block;margin-bottom:7px}.feature-card span{font-size:13px;line-height:1.6;color:var(--muted)}

/* Inbox shell */
.mail-app-shell{min-height:100vh;display:grid;grid-template-columns:270px 1fr}
.mail-sidebar{position:sticky;top:0;height:100vh;padding:24px 18px;display:flex;flex-direction:column;border-right:1px solid var(--line);background:rgba(255,255,255,.62);backdrop-filter:blur(18px)}
body[data-theme=dark] .mail-sidebar{background:rgba(9,13,20,.72)}
.sidebar-brand{padding:3px 8px 25px}
.sidebar-inbox{padding:17px;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:var(--shadow-sm)}
.sidebar-inbox small,.account-popover small{display:block;color:var(--muted);font-size:9px;font-weight:850;letter-spacing:.12em;margin-bottom:7px}
.sidebar-inbox strong,.account-popover strong{display:block;word-break:break-word;font-size:13px;line-height:1.4}
.copy-btn{margin-top:12px;border:1px solid var(--line);background:var(--surface-soft);color:var(--text);border-radius:10px;padding:8px 10px;font-size:11px;font-weight:800}
.copy-btn:hover{border-color:var(--accent);color:var(--accent)}
.side-nav{display:grid;gap:5px;margin-top:18px}
.side-link{display:flex;align-items:center;gap:11px;width:100%;padding:12px 13px;border:1px solid transparent;border-radius:13px;background:transparent;color:var(--muted);font-weight:750;text-align:left}
.side-link span{width:20px;text-align:center;font-size:15px}
.side-link b{margin-left:auto;font-size:10px;padding:3px 7px;border-radius:999px;background:var(--surface-strong);color:var(--muted)}
.side-link:hover,.side-link.active{background:var(--surface);border-color:var(--line);color:var(--text);box-shadow:var(--shadow-sm)}
.side-link.active span{color:var(--accent)}
.sidebar-bottom{margin-top:auto;display:flex;gap:10px;align-items:center;padding:13px;border-radius:15px;background:var(--surface-soft);border:1px solid var(--line)}
.sidebar-bottom strong,.sidebar-bottom small{display:block}.sidebar-bottom strong{font-size:11px}.sidebar-bottom small{color:var(--muted);font-size:9px;margin-top:2px}
.mail-app{min-width:0}
.mail-topbar{height:76px;display:flex;align-items:center;gap:16px;padding:0 32px;border-bottom:1px solid var(--line);background:rgba(245,247,251,.72);backdrop-filter:blur(16px);position:sticky;top:0;z-index:10}
body[data-theme=dark] .mail-topbar{background:rgba(9,13,20,.72)}
.mobile-brand{display:none}
.top-address{display:flex;align-items:center;gap:10px;min-width:0;color:var(--muted);font-size:13px;font-weight:700}
.top-address>span:last-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.address-icon{width:32px;height:32px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--accent);font-weight:850}
.top-actions{margin-left:auto;display:flex;gap:7px}
.top-icon{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:11px;background:var(--surface);color:var(--muted);font-weight:850}
.top-icon:hover{color:var(--text);border-color:var(--accent)}
.account-popover{position:absolute;right:32px;top:66px;width:280px;padding:16px;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:var(--shadow);z-index:30}
.popover-action{width:100%;display:block;text-align:left;border:0;background:transparent;color:var(--text);padding:11px 8px;border-radius:10px;font-weight:700;font-size:12px}
.popover-action:hover{background:var(--surface-soft)}
.mail-main{width:min(1040px,100%);margin:auto;padding:42px 34px 60px}
.mail-toolbar{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-kicker,.modal-kicker,.message-label{font-size:10px;letter-spacing:.13em;font-weight:900;color:var(--accent)}
.mail-toolbar h1{font-size:36px;letter-spacing:-.055em;margin:6px 0 7px}
.count{display:inline-grid;place-items:center;min-width:28px;height:23px;padding:0 7px;border-radius:999px;background:var(--surface-strong);font-size:11px;vertical-align:middle;color:var(--muted)}
.mailbox-address-line{font-size:12px;color:var(--muted);font-weight:650}.mailbox-address-line .copy-btn{margin:0 0 0 6px;padding:5px 8px}
.refresh-big{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:13px;padding:11px 15px;font-weight:800;box-shadow:var(--shadow-sm)}
.refresh-big:hover{border-color:var(--accent);color:var(--accent)}
.mail-list-panel{border:1px solid var(--line);border-radius:24px;background:var(--surface);box-shadow:var(--shadow-sm);overflow:hidden}
.mail-list-head{display:flex;align-items:center;justify-content:space-between;padding:17px 20px;border-bottom:1px solid var(--line);font-size:12px;font-weight:800}
.status{color:var(--muted);font-weight:700}.status i{width:6px;height:6px;display:inline-block;border-radius:50%;background:var(--warning);margin-right:6px}
.message-item{display:grid;grid-template-columns:1fr 1.8fr 120px;align-items:center;gap:18px;padding:19px 20px;border-bottom:1px solid var(--line);transition:background .12s ease}
.message-item:last-child{border-bottom:0}.message-item:hover{background:var(--surface-soft)}
.message-sender{font-size:13px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.message-subject{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.message-date{text-align:right;color:var(--muted);font-size:11px}
.empty-state{min-height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:35px}
.empty-icon{width:54px;height:54px;display:grid;place-items:center;border-radius:18px;background:var(--surface-strong);color:var(--accent);font-weight:900;font-size:22px}
.empty-state h2{margin:16px 0 7px;font-size:20px;letter-spacing:-.03em}.empty-state p{margin:0 0 20px;color:var(--muted);font-size:13px;line-height:1.65}

/* Modals */
.modal-backdrop{position:fixed;inset:0;display:grid;place-items:center;padding:20px;background:rgba(8,12,20,.52);backdrop-filter:blur(8px);z-index:50}
.modal-backdrop[hidden]{display:none}
.account-modal{position:relative;width:min(440px,100%);padding:30px;border:1px solid var(--line);border-radius:25px;background:var(--surface);box-shadow:var(--shadow)}
.modal-close{position:absolute;right:18px;top:18px;width:34px;height:34px;border:1px solid var(--line);border-radius:10px;background:var(--surface-soft);color:var(--muted);font-size:20px}
.account-modal h2{font-size:28px;letter-spacing:-.05em;margin:9px 0 7px}.account-modal>p{margin:0 0 24px;color:var(--muted);font-size:13px}
.account-form{display:grid;gap:8px}.account-form label{font-size:11px;font-weight:850;color:var(--muted)}
.full-input,.address-builder input,.address-builder select{width:100%;border:1px solid var(--line);background:var(--surface-soft);color:var(--text);border-radius:12px;padding:12px 13px;outline:none}
.full-input:focus,.address-builder input:focus,.address-builder select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,92,240,.1)}
.address-builder{display:grid;grid-template-columns:1fr auto;gap:7px}.address-builder select{max-width:190px}
.availability{font-size:10px;color:var(--muted);margin:4px 0 12px}

/* Message */
.message-main{padding-top:28px}
.back-link{display:inline-block;color:var(--muted);font-size:12px;font-weight:800;margin-bottom:18px}
.back-link:hover{color:var(--accent)}
.message-view{border:1px solid var(--line);border-radius:24px;background:var(--surface);box-shadow:var(--shadow-sm);overflow:hidden}
.message-view-head{padding:30px;border-bottom:1px solid var(--line)}
.message-view h1{font-size:32px;letter-spacing:-.05em;margin:8px 0 22px;overflow-wrap:anywhere}
.sender-card{display:flex;align-items:center;gap:12px}
.sender-avatar{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:var(--surface-strong);color:var(--accent);font-weight:900}
.sender-card strong,.sender-card span{display:block}.sender-card strong{font-size:12px}.sender-card span{font-size:11px;color:var(--muted);margin-top:3px}
.sender-card time{margin-left:auto;color:var(--muted);font-size:11px}
.message-view-body{min-height:360px;padding:26px}
.email-frame{width:100%;min-height:600px;border:0;background:#fff;border-radius:12px}
.plain-body{white-space:pre-wrap;overflow:auto;margin:0;font:13px/1.7 ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--text)}

/* Responsive */
@media(max-width:900px){
  .hero{grid-template-columns:1fr;gap:35px;padding-top:35px}.hero-card{max-width:680px;width:100%;margin:auto}
  .mail-app-shell{grid-template-columns:1fr}.mail-sidebar{display:none}.mobile-brand{display:block}.mail-topbar{padding:0 18px}.top-address{margin-right:auto}
  .mail-main{padding:30px 18px 45px}.mail-toolbar{align-items:flex-start}
}
@media(max-width:620px){
  .landing{padding:0 17px 30px}.landing-nav{height:70px}.nav-link{display:none}.hero{min-height:auto;padding:48px 0 55px}.hero h1{font-size:58px}.hero-lead{font-size:16px}
  .feature-strip{grid-template-columns:1fr}.hero-actions .btn{width:100%;text-align:center}.window-body{padding:14px}.preview-row{grid-template-columns:36px 1fr}.preview-time{display:none}
  .mail-topbar{height:66px}.top-address{font-size:11px}.address-icon{width:30px;height:30px}.top-icon{width:35px;height:35px}.account-popover{right:14px;top:58px}
  .mail-toolbar{display:block}.mail-toolbar h1{font-size:30px}.refresh-big{margin-top:17px;width:100%}
  .message-item{grid-template-columns:1fr;padding:16px 17px;gap:5px}.message-date{text-align:left}.mail-list-head{padding:15px 17px}
  .message-view-head{padding:23px 19px}.message-view h1{font-size:25px}.message-view-body{padding:16px}.sender-card{align-items:flex-start}.sender-card time{display:none}
  .account-modal{padding:24px}.address-builder{grid-template-columns:1fr}.address-builder select{max-width:none}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}