:root{--ink:#183637;--muted:#607773;--line:#dfe8e3;--green:#167467;color-scheme:light}
*{box-sizing:border-box}
body{margin:0;background:#f4f7f3;color:var(--ink);font:15px/1.7 system-ui,-apple-system,sans-serif;-webkit-text-size-adjust:100%}
header{min-height:76px;padding:14px max(5vw,env(safe-area-inset-left)) 14px max(5vw,env(safe-area-inset-right));background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px}
a{color:var(--green)}
header a{text-decoration:none;font-size:22px;font-weight:800;flex-shrink:0;min-height:44px;display:flex;align-items:center;gap:6px}
header a span{font-size:14px}
#account{font-size:13px;text-align:right;overflow-wrap:anywhere;min-width:0;max-width:50%}
main{max-width:1280px;margin:auto;padding:44px 38px max(44px,env(safe-area-inset-bottom))}
.heading{display:flex;align-items:center;gap:16px;margin-bottom:30px}
.heading>div{flex:1;min-width:0}
h1{font-size:clamp(28px,3vw,42px);line-height:1.35;letter-spacing:-.7px;margin:12px 0;text-wrap:balance}
h2{font-size:22px;line-height:1.5;margin:4px 0 18px}
p{margin:10px 0;overflow-wrap:anywhere}
.heading p,.hint{color:var(--muted)}
.eyebrow{font-size:11px;font-weight:700;letter-spacing:2px;color:var(--green)}
button{font:inherit;border:1px solid var(--line);border-radius:10px;padding:10px 16px;min-height:44px;cursor:pointer;background:#fff;color:var(--ink);touch-action:manipulation}
button:hover{background:#eaf3ee}
button:disabled{opacity:.55;cursor:wait}
#login,#mailSummarize{background:var(--green);color:#fff;border-color:var(--green)}
#login:hover,#mailSummarize:hover{background:#105e54}
.card{min-width:0;padding:28px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 30px #17343b04}
input,select{font:inherit;font-size:16px;min-width:0;max-width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;background:#fcfdfb;color:var(--ink);min-height:44px}
textarea{font:inherit;font-size:16px;width:100%;min-height:110px;padding:12px;border:1px solid var(--line);border-radius:8px;background:#fcfdfb;color:var(--ink);resize:vertical}
label{display:block}
.check-label{display:flex;align-items:flex-start;gap:9px;min-height:44px;padding-block:8px;cursor:pointer}
input[type=checkbox]{width:20px;height:20px;min-height:20px;flex:0 0 20px;margin:3px 0 0;accent-color:var(--green)}
.hint{font-size:12px;line-height:1.7}
details{margin-top:20px}
summary{cursor:pointer;min-height:44px;padding:10px 0;overflow-wrap:anywhere;touch-action:manipulation}
#api{display:block;width:100%;margin:8px 0 12px}
#status,#mailStatus{white-space:pre-wrap;overflow-wrap:anywhere;color:var(--green)}
[hidden]{display:none!important}
:focus-visible{outline:3px solid #76b9aa;outline-offset:3px}
.gmail{margin-bottom:24px}
.mail-options{display:grid;grid-template-columns:minmax(130px,.7fr) minmax(210px,1.2fr) auto;gap:14px 20px;align-items:end;margin:22px 0 12px}
.mail-options select{display:block;width:100%;margin-top:6px;background:white}
.mail-options .check-label{align-self:end;align-items:center;padding-block:10px}
.mail-options input[type=checkbox]{margin:0}
.mail-group{padding:16px 0;border-top:1px solid var(--line);margin-top:16px}
.mail-group h3{font-size:17px;margin:0 0 10px}
.mail-lines{margin:0;padding-left:20px}
.mail-lines li{padding:6px 0;overflow-wrap:anywhere}
.mail-lines a{display:inline-flex;align-items:center;min-height:44px;max-width:100%;vertical-align:middle;overflow-wrap:anywhere}
.mail-lines li>a:last-child:not(:first-child){font-size:13px;margin-left:12px;white-space:nowrap}
.mail-originals{margin-top:8px;font-size:14px;color:var(--muted)}
.mail-promotions{padding:4px 16px;background:#f4f7f3;border:1px solid var(--line);border-radius:10px;color:var(--muted);font-size:14px}
.mail-promotions[open]{padding-bottom:12px}
.mail-empty{color:var(--muted)}
.mail-preferences{margin:16px 0;border-block:1px solid var(--line);padding:4px 0}
.mail-preferences summary{font-weight:650}
.mail-preferences summary span{font-weight:400;font-size:13px;color:var(--muted);margin-left:8px}
.mail-preferences label{margin:8px 0}
.preference-actions{display:flex;flex-wrap:wrap;gap:10px}
#preferenceStatus{font-size:13px;color:var(--green)}
#preferenceStatus:not(:empty){padding:10px 12px;border-radius:8px;background:#e7f3ef;border:1px solid #cce5dc}
.toast{position:fixed;z-index:20;bottom:max(24px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:max-content;max-width:calc(100vw - 32px);padding:14px 20px;border-radius:12px;background:#153f3a;color:#fff;box-shadow:0 8px 28px #153f3a30;font-size:15px;text-align:center}
@media(max-width:760px){main{padding:28px 22px max(32px,env(safe-area-inset-bottom))}.heading{align-items:flex-start;flex-wrap:wrap;gap:10px;margin-bottom:24px}.heading>div{flex-basis:100%}.heading h1{max-width:24ch}.card{padding:24px}.mail-options{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.mail-options .check-label{grid-column:1/-1;justify-self:start}}
@media(max-width:480px){body{font-size:16px}header{min-height:68px;padding:10px 16px;gap:12px;align-items:center}header a{font-size:20px;gap:4px}header a span{font-size:12px}#account{font-size:11px;line-height:1.5;max-width:48%}main{padding:24px max(14px,env(safe-area-inset-left)) max(28px,env(safe-area-inset-bottom)) max(14px,env(safe-area-inset-right))}h1{font-size:30px;letter-spacing:-.5px}h2{font-size:21px}.heading{margin-bottom:22px}.heading .eyebrow{font-size:10px;letter-spacing:1.7px}#login{width:100%}#logout{padding:8px 16px}.card{padding:20px 16px;border-radius:14px}.mail-options{grid-template-columns:minmax(0,1fr);gap:12px;margin-top:18px}.mail-options>label:not(.check-label){font-size:14px}#mailSummarize,#saveApi{width:100%;min-height:48px}.check-label{font-size:14px;line-height:1.65}.mail-lines{padding-left:18px}.mail-lines li{padding:8px 0}.mail-lines li>a:last-child:not(:first-child){display:flex;width:max-content;margin-left:0}.mail-promotions{padding-inline:12px}}