/* OWA Mail MCP — dark-first, light supported. No framework. */
:root{
  --bg:#07080b;
  --bg-2:#0c0d12;
  --surface:#101218;
  --surface-2:#161922;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --text:#ededf0;
  --muted:#9b9ca8;
  --faint:#6b6d7a;
  --accent:#8b7cff;
  --accent-2:#4f8cff;
  --accent-3:#22d3ee;
  --ok:#3ddc97;
  --warn:#ffb547;
  --danger:#ff6b81;
  --grad:linear-gradient(92deg,#a78bfa 0%,#60a5fa 45%,#22d3ee 100%);
  --glow:radial-gradient(60% 60% at 50% 0%,rgba(124,92,255,.28),transparent 70%);
  --shadow:0 0 0 1px var(--line),0 30px 80px -20px rgba(0,0,0,.65);
  --sans:"Inter",ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --maxw:1180px;
  color-scheme:dark;
}
:root[data-theme="light"]{
  --bg:#ffffff; --bg-2:#fafafb; --surface:#ffffff; --surface-2:#f4f4f7;
  --line:rgba(10,12,20,.08); --line-2:rgba(10,12,20,.14);
  --text:#0b0c10; --muted:#5d5f6d; --faint:#8a8c99;
  --accent:#6d5cff; --accent-2:#2f6bff; --accent-3:#0891b2;
  --ok:#0f9d63; --warn:#b46a00; --danger:#d93654;
  --grad:linear-gradient(92deg,#7c3aed 0%,#2563eb 50%,#0891b2 100%);
  --glow:radial-gradient(60% 60% at 50% 0%,rgba(109,92,255,.14),transparent 70%);
  --shadow:0 0 0 1px var(--line),0 30px 70px -24px rgba(20,24,40,.28);
  color-scheme:light;
}
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    --bg:#ffffff; --bg-2:#fafafb; --surface:#ffffff; --surface-2:#f4f4f7;
    --line:rgba(10,12,20,.08); --line-2:rgba(10,12,20,.14);
    --text:#0b0c10; --muted:#5d5f6d; --faint:#8a8c99;
    --accent:#6d5cff; --accent-2:#2f6bff; --accent-3:#0891b2;
    --ok:#0f9d63; --warn:#b46a00; --danger:#d93654;
    --grad:linear-gradient(92deg,#7c3aed 0%,#2563eb 50%,#0891b2 100%);
    --glow:radial-gradient(60% 60% at 50% 0%,rgba(109,92,255,.14),transparent 70%);
    --shadow:0 0 0 1px var(--line),0 30px 70px -24px rgba(20,24,40,.28);
    color-scheme:light;
  }
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
:lang(zh){--sans:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",ui-sans-serif,sans-serif}
:lang(zh) h1,:lang(zh) h2{letter-spacing:-.02em}
body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;font-feature-settings:"cv11","ss01"}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
code,kbd{font-family:var(--mono);font-size:.88em}
p code,li code,td code,dd code{background:var(--surface-2);border:1px solid var(--line);padding:.08em .4em;border-radius:6px}
::selection{background:color-mix(in srgb,var(--accent) 40%,transparent)}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:50;background:var(--surface);padding:8px 12px;border-radius:8px}

.only-light{display:none}
:root[data-theme="light"] .only-light{display:block}
:root[data-theme="light"] .only-dark{display:none}
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]) .only-light{display:block}
  :root:not([data-theme="dark"]) .only-dark{display:none}
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 72%,transparent);backdrop-filter:saturate(160%) blur(16px);-webkit-backdrop-filter:saturate(160%) blur(16px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:28px;height:60px}
.logo{display:flex;flex:none;white-space:nowrap;align-items:center;gap:10px;text-decoration:none;font-weight:650;letter-spacing:-.02em}
.logo svg{width:26px;height:26px}
.nav nav{display:flex;gap:22px;margin-left:12px;font-size:14px;color:var(--muted)}
.nav nav a{text-decoration:none;white-space:nowrap}
.nav nav a:hover{color:var(--text)}
.nav .right{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{width:34px;height:34px;display:grid;place-items:center;border-radius:9px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer}
.icon-btn:hover{color:var(--text);border-color:var(--line-2)}
.icon-btn svg{width:16px;height:16px}
.theme .sun{display:none}
:root[data-theme="light"] .theme .sun{display:block}
:root[data-theme="light"] .theme .moon{display:none}

.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font:600 14px/1 var(--sans);border-radius:10px;padding:11px 16px;border:1px solid transparent;cursor:pointer;transition:transform .12s ease,background .15s ease,border-color .15s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--text);color:var(--bg)}
.btn-primary:hover{background:color-mix(in srgb,var(--text) 86%,var(--accent))}
.btn-ghost{border-color:var(--line-2);color:var(--text);background:color-mix(in srgb,var(--surface) 60%,transparent)}
.btn-ghost:hover{border-color:var(--muted)}
.btn svg{width:16px;height:16px}

/* Language switcher */
.lang{position:relative}
.lang summary{list-style:none;height:34px;display:flex;align-items:center;gap:6px;padding:0 10px;border-radius:9px;border:1px solid var(--line);color:var(--muted);cursor:pointer;font:600 12px var(--mono);user-select:none}
.lang summary::-webkit-details-marker{display:none}
.lang summary:hover,.lang[open] summary{color:var(--text);border-color:var(--line-2)}
.lang summary svg{width:16px;height:16px}
.lang ul{position:absolute;right:0;top:42px;list-style:none;min-width:150px;padding:6px;background:var(--surface);border:1px solid var(--line-2);border-radius:12px;box-shadow:var(--shadow);z-index:40}
.lang a{display:block;padding:8px 12px;border-radius:8px;text-decoration:none;font-size:14px;color:var(--muted)}
.lang a:hover{background:var(--surface-2);color:var(--text)}
.lang a[aria-current="page"]{color:var(--text);font-weight:600}
.lang a[aria-current="page"]::after{content:" ✓";color:var(--ok)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 40px;text-align:center}
.hero::before{content:"";position:absolute;inset:-10% -20% auto;height:720px;background:var(--glow);pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(70% 55% at 50% 0%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(70% 55% at 50% 0%,#000 30%,transparent 75%);opacity:.55;pointer-events:none}
.hero>*{position:relative;z-index:1}
.pill{display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);text-decoration:none;padding:5px 12px 5px 6px;border-radius:999px;border:1px solid var(--line-2);background:color-mix(in srgb,var(--surface) 70%,transparent)}
.pill b{font-weight:600;color:var(--text);background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:1px 9px;font-size:12px}
.pill:hover{border-color:var(--muted)}
h1{font-size:clamp(40px,6.4vw,76px);line-height:1.02;letter-spacing:-.045em;font-weight:700;margin:26px auto 0;max-width:15ch}
.sub{font-size:clamp(17px,1.6vw,20px);color:var(--muted);max-width:60ch;margin:22px auto 0;line-height:1.55}
.hero-cta{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:34px}
.works{margin-top:30px;font-size:13px;color:var(--faint);display:flex;flex-wrap:wrap;justify-content:center;gap:8px 18px}
.works span{color:var(--muted);font-weight:500}

/* Install command */
.cmd{display:flex;align-items:center;gap:12px;max-width:720px;margin:0 auto;background:var(--surface);border:1px solid var(--line-2);border-radius:12px;padding:8px 8px 8px 16px;font-family:var(--mono);font-size:13.5px;text-align:left;box-shadow:0 10px 30px -14px rgba(0,0,0,.5)}
.cmd .p{color:var(--accent);user-select:none}
.cmd code{flex:1;white-space:nowrap;overflow-x:auto;scrollbar-width:none;color:var(--text)}
.cmd code::-webkit-scrollbar{display:none}
.copy{flex:none;display:inline-flex;align-items:center;gap:6px;font:600 12.5px var(--sans);color:var(--text);background:var(--surface-2);border:1px solid var(--line-2);border-radius:8px;padding:7px 11px;cursor:pointer}
.copy:hover{border-color:var(--muted)}
.copy.done{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 50%,transparent)}
.copy svg{width:14px;height:14px}

/* ---------- Product visual ---------- */
.stage{position:relative;max-width:1060px;margin:64px auto 0;padding:0 24px}
.stage::before{content:"";position:absolute;inset:8% 6% -6%;background:var(--grad);filter:blur(80px);opacity:.22;border-radius:40px;pointer-events:none}
.window{position:relative;background:var(--bg-2);border-radius:14px;box-shadow:var(--shadow);overflow:hidden;text-align:left}
.window .bar{display:flex;align-items:center;gap:8px;padding:12px 14px;border-bottom:1px solid var(--line);background:var(--surface)}
.window .bar i{width:11px;height:11px;border-radius:50%;background:var(--line-2)}
.window .bar i:nth-child(1){background:#ff5f57}.window .bar i:nth-child(2){background:#febc2e}.window .bar i:nth-child(3){background:#28c840}
.window .bar span{margin-left:10px;font:500 12px var(--mono);color:var(--faint)}
.term{padding:20px 22px 24px;font:13.5px/1.75 var(--mono);color:var(--text);overflow-x:auto}
.term .u{color:var(--text)}
.term .u::before{content:"› ";color:var(--accent)}
.term .call{color:var(--muted)}
.term .call::before{content:"⏺ ";color:var(--ok)}
.term .call.wait::before{color:var(--warn)}
.term .call b{color:var(--accent-3);font-weight:500}
.term .r{color:var(--faint)}
.term .ans{padding-left:18px;color:var(--text);white-space:pre-wrap}
.term .ans em{font-style:normal;color:var(--warn)}
.term .gap{height:10px}
.float{position:absolute;right:-28px;bottom:-96px;width:min(420px,46%);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line-2)}
.float-tag{position:absolute;right:-4px;bottom:-124px;font:500 12px var(--mono);color:var(--faint)}

/* ---------- Sections ---------- */
section{padding:112px 0 0}
.eyebrow{font:600 12px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
h2{font-size:clamp(30px,3.6vw,46px);line-height:1.08;letter-spacing:-.035em;font-weight:700;margin-top:12px;max-width:22ch}
.section-sub{color:var(--muted);font-size:18px;max-width:62ch;margin-top:14px}
h3{font-size:18px;letter-spacing:-.02em;font-weight:650}

.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:16px;margin-top:168px;background:var(--surface);overflow:hidden}
.stats div{padding:22px 24px;border-left:1px solid var(--line)}
.stats div:first-child{border-left:0}
.stats b{display:block;font-size:30px;letter-spacing:-.04em;font-weight:700}
.stats span{font-size:14px;color:var(--muted)}

/* Bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:44px}
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;overflow:hidden;display:flex;flex-direction:column;gap:10px;min-width:0}
.card:hover{border-color:var(--line-2)}
.card p{color:var(--muted);font-size:15px}
.card .ic{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--surface-2);border:1px solid var(--line);color:var(--accent)}
.card .ic svg{width:18px;height:18px}
.card .tools{margin-top:auto;padding-top:10px;display:flex;flex-wrap:wrap;gap:6px}
.card .tools code{font-size:11.5px;color:var(--muted);background:var(--surface-2);border:1px solid var(--line);padding:3px 8px;border-radius:6px}
.c2{grid-column:span 2}.c3{grid-column:span 3}.c4{grid-column:span 4}.c6{grid-column:span 6}
.card.feature{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:32px;align-items:center;padding:32px}
.card.feature>div{display:flex;flex-direction:column;gap:10px}
.card.feature figure{border-radius:12px;overflow:hidden;border:1px solid var(--line-2)}
.mini{margin-top:6px;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font:12.5px/1.7 var(--mono);color:var(--muted)}
.mini .k{color:var(--text)}
.mini .t{color:var(--ok)}
.mini .w{color:var(--warn)}
.checks{list-style:none;display:grid;gap:8px;margin-top:6px}
.checks li{position:relative;padding-left:26px;color:var(--muted);font-size:15px}
.checks li::before{content:"";position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:50%;background:color-mix(in srgb,var(--ok) 18%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--ok) 45%,transparent)}
.checks li::after{content:"";position:absolute;left:5px;top:8px;width:6px;height:3px;border-left:1.6px solid var(--ok);border-bottom:1.6px solid var(--ok);transform:rotate(-45deg)}
.checks b{color:var(--text);font-weight:600}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px;counter-reset:st}
.step{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:10px;counter-increment:st;min-width:0}
.step::before{content:counter(st,decimal-leading-zero);font:600 12px var(--mono);color:var(--accent)}
.step p{color:var(--muted);font-size:15px}
.step figure{margin-top:auto;padding-top:10px}
.step figure img{border-radius:10px;border:1px solid var(--line-2)}

/* Install tabs & code */
.panel-box{margin-top:40px;background:var(--surface);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.tabs{display:flex;gap:4px;padding:8px;border-bottom:1px solid var(--line);background:var(--bg-2);overflow-x:auto}
.tabs button{font:600 13px var(--sans);color:var(--muted);background:transparent;border:1px solid transparent;border-radius:8px;padding:8px 12px;cursor:pointer;white-space:nowrap}
.tabs button[aria-selected="true"]{color:var(--text);background:var(--surface-2);border-color:var(--line-2)}
.tabpanel{padding:22px 24px 24px}
.tabpanel[hidden]{display:none}
.tabpanel p{color:var(--muted);font-size:15px}
.tabpanel p+p,.tabpanel pre+p,.tabpanel p+pre{margin-top:12px}
.code{position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;margin-top:12px}
.code pre{padding:14px 16px;font:13px/1.65 var(--mono);color:var(--text);overflow-x:auto;white-space:pre}
.code .copy{position:absolute;top:8px;right:8px}
.code pre.wrap-text{white-space:pre-wrap;padding-right:110px}
.req{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.req div{border:1px solid var(--line);border-radius:14px;padding:16px 18px;background:var(--surface)}
.req dt{font:600 11.5px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--faint)}
.req dd{margin-top:6px;font-size:15px}

/* Tools table */
.table{margin-top:40px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--surface)}
.table table{width:100%;border-collapse:collapse;font-size:15px}
.table th{text-align:left;font:600 12px var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--faint);padding:14px 20px;background:var(--bg-2);border-bottom:1px solid var(--line)}
.table td{padding:14px 20px;border-top:1px solid var(--line);vertical-align:top;color:var(--muted)}
.table tr:first-child td{border-top:0}
.table td:first-child{white-space:nowrap}
.table td:first-child code{color:var(--text);background:none;border:0;padding:0;font-size:14px}
.table .rw{font:600 11px var(--mono);color:var(--warn);margin-left:8px}

/* Security */
.sec{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.sec-h{margin-top:48px;font-size:20px}
.risks{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:20px;counter-reset:rk}
.risks li{position:relative;counter-increment:rk;background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--warn);border-radius:14px;padding:18px 20px 18px 56px;color:var(--muted);font-size:15px;min-width:0}
.risks li::before{content:counter(rk);position:absolute;left:18px;top:18px;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font:600 12px var(--mono);color:var(--warn);background:color-mix(in srgb,var(--warn) 14%,transparent)}
.risks b{display:block;color:var(--text);font-weight:600;margin-bottom:4px}
.risks li:last-child:nth-child(odd){grid-column:span 2}
#security .checks{margin-top:20px}
.sec .card p{font-size:14.5px}
.note{margin-top:16px;color:var(--muted);font-size:14.5px;border:1px dashed var(--line-2);border-radius:14px;padding:14px 18px}

/* FAQ */
.faq{margin-top:40px;border-top:1px solid var(--line);max-width:860px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:20px 40px 20px 0;font-size:17px;font-weight:600;position:relative;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:8px;top:27px;width:9px;height:9px;border-right:1.6px solid var(--faint);border-bottom:1.6px solid var(--faint);transform:rotate(45deg);transition:transform .2s ease}
.faq details[open] summary::after{transform:rotate(-135deg);top:31px}
.faq details p{color:var(--muted);padding:0 40px 20px 0}
.faq details p+p{margin-top:-8px}

/* CTA band */
.band{position:relative;margin-top:120px;border:1px solid var(--line-2);border-radius:24px;padding:64px 32px;text-align:center;overflow:hidden;background:var(--surface)}
.band::before{content:"";position:absolute;inset:-40% -10% auto;height:420px;background:var(--grad);filter:blur(90px);opacity:.25}
.band>*{position:relative}
.band h2{margin:0 auto;max-width:20ch}
.band .section-sub{margin:14px auto 28px}

footer{margin-top:96px;border-top:1px solid var(--line);padding:32px 0 48px;color:var(--faint);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center}
footer a{text-decoration:none}
footer a:hover{color:var(--text)}
footer .grow{flex:1}

@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}.btn{transition:none}}

/* ---------- Responsive ---------- */
@media (max-width:1180px){.nav nav{display:none}}
@media (max-width:1000px){
  .bento{grid-template-columns:repeat(2,1fr)}
  .c2,.c3,.c4,.c6{grid-column:span 2}
  .card.feature{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .sec{grid-template-columns:repeat(2,1fr)}
  .float{position:relative;right:auto;bottom:auto;width:auto;margin:16px 0 0}
  .float-tag{position:static;display:block;text-align:right;margin-top:8px}
}
@media (max-width:640px){
  .wrap,.stage{padding:0 16px}
  .hero{padding-top:56px}
  .nav .right .btn{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stats div:nth-child(3){border-left:0}
  .stats div:nth-child(n+3){border-top:1px solid var(--line)}
  .sec,.req,.risks{grid-template-columns:1fr}
  .risks li:last-child:nth-child(odd){grid-column:auto}
  .term{font-size:12px;padding:16px}
  section{padding-top:84px}
  .table td,.table th{padding:12px 14px}
  .table td:first-child{white-space:normal}
}

.hero-cmd{flex:0 1 720px;width:100%;min-width:0}
@media (max-width:1000px){.stats{margin-top:56px}}
@media (max-width:640px){.pill{font-size:12px}.hero-cta .btn{flex:1 1 100%;justify-content:center}}