/* Mail adoption of MCP UI 0.3 draft: exact source snapshot is in docs/DESIGN_ADOPTION.json. */
:root {color-scheme:dark;--bg:#0b0d12;--panel:#171b24;--text:#f7f5f0;--muted:#b7becb;--line:#343c4c;--accent:#b9cce1;--action:#b83d3f;--action-ink:#fff;--read-surface:#f6f3ec;--read-ink:#20242a;--mcp-parent-mark-url:url("../brand/mcp-parent-dark.5d6dd76baa17.png");font-family:Arial,Helvetica,sans-serif}
html,body {font:16px/1.6 Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
.site-header {max-width:none;padding:12px 28px;min-height:94px;gap:20px;background:#0b0d12;border-bottom:1px solid #343c4c}
.site-header .brand {max-width:232px;min-height:64px;grid-template-columns:104px 2px auto;gap:12px}.site-header .mcp-lockup__divider {height:42px}.site-header .mcp-lockup__name {font-size:24px}
.environment {margin-left:auto;border:1px solid #667789;border-radius:4px;padding:3px 9px;color:#d1dce9}.logout-form button {color:#e5e9f1}
.app-layout {max-width:1600px;margin:0 auto;display:grid;grid-template-columns:228px minmax(0,1fr);min-height:calc(100vh - 170px)}
.app-layout:not(:has(.primary-nav)) {display:block;max-width:640px}.primary-nav {margin:0;padding:26px 16px;border-right:1px solid var(--line);display:block;max-width:none}
.nav-heading {font-size:12px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);padding-inline:12px}.primary-nav>a {display:flex;min-height:46px;border-radius:5px;padding:9px 12px;text-decoration:none;margin-bottom:5px;color:var(--text)}
.primary-nav>a:hover,.primary-nav>a[aria-current=page] {background:var(--panel);box-shadow:inset 3px 0 var(--action)}.primary-nav hr {border:0;border-top:1px solid var(--line);margin:24px 0}.appearance {padding:8px 12px}.appearance summary {cursor:pointer;min-height:36px}
main {width:100%;max-width:1140px;margin:0 auto;padding:32px 36px;min-width:0}h1 {font-size:clamp(1.7rem,3vw,2.2rem);line-height:1.2;font-weight:650;margin-bottom:16px}h2 {font-size:1.2rem;line-height:1.35}.eyebrow {color:var(--muted);font-size:12px;margin:0 0 8px}.panel {border:1px solid var(--line);border-radius:8px;padding:24px;margin-block:20px;background:var(--panel)}
button,.button-link {background:var(--action);color:var(--action-ink);border:1px solid transparent;border-radius:5px;padding:10px 16px;font:600 15px/1.5 Arial,Helvetica,sans-serif;text-decoration:none;cursor:pointer;min-height:44px}.secondary {background:transparent;border-color:var(--line);color:var(--text)}.button-link:hover,button:hover {filter:brightness(1.12)}
input,select {background:var(--bg);color:var(--text);font:inherit}input[type=checkbox] {width:22px;min-height:22px;vertical-align:middle;margin-right:8px;accent-color:var(--action)}.stacked label {display:block;margin-block:12px 5px}.stacked fieldset {border:1px solid var(--line)}
.message-body {font:18px/1.75 Georgia,serif;background:var(--read-surface);color:var(--read-ink);padding:24px;border:0;border-radius:4px;max-width:80ch}.message-headers {display:grid;grid-template-columns:105px minmax(0,1fr);gap:6px 18px}.message-headers dd {margin:0}.mail-card h2 {font-family:Arial,Helvetica,sans-serif}.mail-card p {font-size:14px}.site-footer {max-width:1600px;padding:18px 28px;border-top:1px solid var(--line);font-size:13px}
.destination-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}.destination-card {border-left:3px solid #667789;padding-left:12px}.status {display:inline-block;padding:4px 8px;border:1px solid var(--line);border-radius:4px;font-size:12px;color:var(--text)}.status.ready {border-color:#4f8a62}.page-heading {display:flex;justify-content:space-between;gap:16px;align-items:center;flex-wrap:wrap}.messages {max-width:1100px;margin:20px auto;padding:12px;border:1px solid #4f8a62;border-radius:5px}
:root[data-theme=light] {color-scheme:light;--bg:#f3f1ec;--panel:#fff;--text:#20242a;--muted:#525e6c;--line:#cbd0d7;--accent:#284e75;--read-surface:#faf8f2;--read-ink:#20242a}
@media(prefers-color-scheme:light){:root:not([data-theme=dark]):not([data-theme=light]) {color-scheme:light;--bg:#f3f1ec;--panel:#fff;--text:#20242a;--muted:#525e6c;--line:#cbd0d7;--accent:#284e75}}
@media(max-width:760px){.site-header{padding:12px 16px;gap:10px}.site-header .brand{max-width:190px;grid-template-columns:82px 2px auto;gap:9px}.site-header .mcp-lockup__name{font-size:22px}.app-layout{display:block}.primary-nav{border-right:0;border-bottom:1px solid var(--line);display:flex;gap:6px;flex-wrap:wrap;padding:12px}.primary-nav .nav-heading,.primary-nav hr{display:none}.primary-nav>a{margin:0;padding:8px 10px;min-height:44px}.appearance{padding:4px 10px}main{padding:24px 16px}.panel{padding:18px}.message-body{padding:16px}.message-headers{display:block}.message-headers dd{margin-bottom:12px}.destination-grid{grid-template-columns:1fr 1fr}.logout-form button{padding:6px}.environment{font-size:11px}}
@media(max-width:380px){.site-header .brand{grid-template-columns:66px 2px auto;max-width:155px}.destination-grid{grid-template-columns:1fr}.site-header{gap:6px}.logout-form button{font-size:13px}}