/* Wireframe visual language. Grayscale only: structure and behavior, not design.
   Palette and metrics follow docs/wireframe-components-svg-reference.md. */
:root{--canvas:#fff;--stroke:#b4bcc9;--hair:#dfe4ea;--surf:#f4f6f9;--hdr:#eef1f5;--pri:#5a6779;--head:#28303d;--body:#3d4759;--mut:#97a0b0;--cap:#8b95a5;--dis-fill:#f7f8fa;--dis-stroke:#d5dae1;--dis-text:#b6bdc7}
*{box-sizing:border-box}
html,body{margin:0;background:var(--canvas);color:var(--body);font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;font-size:12.5px;line-height:1.45}
a{color:var(--body);text-decoration:underline;text-decoration-color:var(--stroke)}
h1,.ttl{font-size:18px;font-weight:700;color:var(--head);margin:0 0 16px}
h2,.hd{font-size:14px;font-weight:600;color:var(--head);margin:0 0 10px}
.sm{font-size:11px}.mut{color:var(--mut)}
.cap{font-size:10px;font-weight:700;color:var(--cap);letter-spacing:.07em;text-transform:uppercase;display:block;margin-bottom:6px}
/* prototype bar */
.proto{background:var(--head);color:#fff;font-size:11px;padding:6px 28px;display:flex;flex-wrap:wrap;gap:4px 18px;align-items:center}
.proto a{color:#fff;text-decoration-color:#8b95a5}
.proto .tag{border:1px dashed #8b95a5;border-radius:3px;padding:1px 6px;letter-spacing:.07em;font-weight:700}
/* app shell */
.top{height:56px;background:var(--hdr);border-bottom:1px solid var(--hair);display:flex;align-items:center;padding:0 28px;gap:28px}
.top .brand{font-weight:700;color:var(--head);font-size:14px;text-decoration:none}
.top nav a{text-decoration:none;color:var(--mut);margin-right:22px;font-weight:600}
.top nav a.on{color:var(--head);border-bottom:2px solid var(--pri);padding-bottom:17px}
.top .who{margin-left:auto;color:var(--mut)}
.layout{display:flex;min-height:calc(100vh - 56px - 28px)}
.side{width:220px;background:var(--surf);border-right:1px solid var(--hair);padding:20px 0}
.side a{display:block;padding:9px 28px;text-decoration:none;color:var(--body)}
.side a.on{background:var(--hdr);color:var(--head);font-weight:600;box-shadow:inset 3px 0 0 var(--pri)}
.side .cap{padding:14px 28px 4px}
.page{padding:28px;max-width:1200px;width:100%}
.page.narrow{max-width:620px;margin:0 auto}
.bar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:20px}
.bar h1{margin:0}.bar .right{margin-left:auto;display:flex;gap:10px}
/* controls */
.field{margin-bottom:20px}
.ctrl,input[type=text],input[type=email],input[type=tel],input[type=date],input[type=number],select,textarea{width:100%;height:34px;border:1.5px solid var(--stroke);border-radius:4px;background:#fff;padding:0 12px;font:inherit;color:var(--body)}
textarea{height:88px;padding:8px 12px}
select{appearance:none;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M0 0l6 6 6-6' fill='none' stroke='%235a6779' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 12px center}
input::placeholder,textarea::placeholder{color:var(--mut)}
.row{display:flex;gap:20px}.row>*{flex:1}
.check{display:flex;align-items:center;gap:10px;margin:8px 0}
.check input{width:15px;height:15px;margin:0;accent-color:var(--pri)}
.toggle{display:inline-block;width:34px;height:18px;border-radius:9px;border:1.5px solid var(--stroke);position:relative;vertical-align:middle}
.toggle::after{content:"";position:absolute;top:2px;left:2px;width:11px;height:11px;border-radius:50%;background:var(--stroke)}
.toggle.on{background:var(--pri);border-color:var(--pri)}.toggle.on::after{left:18px;background:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;height:32px;min-width:76px;padding:0 14px;border-radius:4px;border:1.5px solid var(--stroke);background:#fff;color:var(--pri);font:inherit;font-weight:600;text-decoration:none;cursor:pointer}
.btn.pri{background:var(--pri);border-color:var(--pri);color:#fff}
.btn.dis{background:var(--dis-fill);border-color:var(--dis-stroke);color:var(--dis-text);cursor:not-allowed}
.btn.sm{height:26px;min-width:0;padding:0 10px;font-size:11px}
.actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}
/* tabs */
.tabs{border-bottom:1px solid var(--hair);margin-bottom:20px;display:flex;gap:28px}
.tabs a{text-decoration:none;color:var(--mut);padding-bottom:9px;font-weight:600}
.tabs a.on{color:var(--head);border-bottom:2px solid var(--pri)}
/* tables and lists */
table{width:100%;border-collapse:collapse}
thead th{background:var(--hdr);text-align:left;font-size:10px;font-weight:700;color:var(--cap);letter-spacing:.07em;text-transform:uppercase;padding:0 14px;height:36px}
thead th:first-child{border-radius:4px 0 0 4px}thead th:last-child{border-radius:0 4px 4px 0}
tbody td{height:44px;padding:0 14px;border-bottom:1px solid var(--hair);vertical-align:middle}
tbody tr.more td{text-align:center;color:var(--mut);border-bottom:0}
.list .item{background:var(--surf);border-radius:4px;min-height:44px;display:flex;align-items:center;padding:0 14px;margin-bottom:8px;gap:12px}
.list .item .grow{flex:1}
.card{border:1.5px solid var(--stroke);border-radius:6px;padding:20px;background:#fff;margin-bottom:20px}
.card.surf{background:var(--surf);border-color:transparent}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.stat{border:1.5px solid var(--stroke);border-radius:6px;padding:16px}
.stat .n{font-size:22px;font-weight:700;color:var(--head)}
.pill{display:inline-block;height:22px;line-height:20px;padding:0 10px;border-radius:11px;border:1.5px solid var(--stroke);font-size:11px;white-space:nowrap}
.pill.fill{background:var(--pri);border-color:var(--pri);color:#fff}
.pill.dash{border-style:dashed;color:var(--mut)}
.banner{background:var(--surf);border-left:3px solid var(--pri);border-radius:4px;padding:11px 18px;margin-bottom:20px}
.hr{border:0;border-top:1px solid var(--hair);margin:20px 0}
.empty{border:1.5px dashed var(--dis-stroke);border-radius:6px;padding:40px;text-align:center;color:var(--mut)}
.empty b{display:block;color:var(--head);font-size:14px;margin-bottom:6px}
.callout{display:inline-flex;width:20px;height:20px;border-radius:50%;background:var(--pri);color:#fff;font-size:11px;font-weight:700;align-items:center;justify-content:center;vertical-align:middle;margin-left:6px}
.notes{border-top:1px solid var(--hair);margin-top:32px;padding-top:16px}
.notes li{margin-bottom:6px}
/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(40,48,61,.28);display:none;align-items:center;justify-content:center}
.modal-bg.open{display:flex}
.modal{width:560px;max-width:calc(100vw - 32px);background:#fff;border:1.5px solid var(--stroke);border-radius:6px}
.modal header{background:var(--hdr);border-bottom:1px solid var(--hair);padding:0 20px;height:52px;display:flex;align-items:center;font-weight:600;color:var(--head);border-radius:6px 6px 0 0}
.modal .body{padding:20px}.modal footer{border-top:1px solid var(--hair);padding:14px 20px;display:flex;justify-content:flex-end;gap:10px}
/* toast */
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--head);color:#fff;padding:10px 16px;border-radius:4px;font-size:12px;opacity:0;transition:opacity .2s;pointer-events:none}
.toast.show{opacity:1}
/* simulated message (email/SMS) */
.msg{max-width:620px;border:1.5px dashed var(--stroke);border-radius:6px;padding:20px;margin:0 auto 20px}
.msg .from{color:var(--mut);margin-bottom:10px}
.phone{width:390px;max-width:100%;margin:0 auto;border:1.5px solid var(--stroke);border-radius:24px;padding:40px 16px}
.bubble{background:var(--surf);border-radius:14px;padding:10px 14px;display:inline-block;max-width:280px}
.device-note{color:var(--mut);text-align:center;margin-top:10px}
/* additions for the page set: layout helpers, states, mobile */
.top nav{display:flex;flex-wrap:wrap}
.btn{white-space:nowrap}.actions,.bar .right{flex-wrap:wrap}
.cols{display:grid;grid-template-columns:1fr 300px;gap:28px;align-items:start}
.scroll{overflow-x:auto;margin-bottom:20px}
.scroll table{min-width:640px}
.kv{display:grid;grid-template-columns:170px 1fr;gap:10px 16px;margin:0 0 20px}
.kv dt{color:var(--cap);font-size:10px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;padding-top:2px}.kv dd{margin:0}
.meter{background:var(--surf);height:14px;border-radius:2px;margin:4px 0 10px}.meter i{display:block;height:100%;background:var(--pri);border-radius:2px}
.toggle.lock{border-style:dashed;border-color:var(--dis-stroke);background:var(--dis-fill)}.toggle.lock::after{background:var(--dis-text)}
.toggle.on.lock::after{left:18px}
.lockline{display:flex;align-items:center;gap:10px}
input.code{letter-spacing:.4em;font-size:16px;max-width:220px}
input:disabled{background:var(--dis-fill);border-color:var(--dis-stroke);color:var(--dis-text)}
tr.open td{background:var(--surf);border-bottom:0}
.diff{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:4px 14px 16px}
.diff div{border:1.5px solid var(--stroke);border-radius:4px;padding:10px 12px;background:#fff;font-family:Menlo,Consolas,monospace;font-size:11px;white-space:pre-wrap}
.diff div.before{border-style:dashed}
.notes ol{list-style:none;padding:0;margin:0}.notes .callout{margin:0 8px 0 0}
.step{display:flex;gap:10px;align-items:baseline}
.when-in{display:none}body.in .when-in{display:revert}body.in .when-out{display:none}
.stack>*+*{margin-top:8px}
.map h2{margin-top:24px}.map dl{display:grid;grid-template-columns:200px 1fr;gap:6px 16px;margin:0}.map dd{margin:0;color:var(--body)}
@media (max-width:760px){
.proto{padding:6px 16px}
.top{height:auto;flex-wrap:wrap;gap:6px 18px;padding:12px 16px}
.top nav a.on{padding-bottom:2px}
.top .who{margin-left:0;width:100%}
.layout{flex-direction:column}
.side{width:auto;display:flex;flex-wrap:wrap;padding:6px 8px;border-right:0;border-bottom:1px solid var(--hair)}
.side a{padding:6px 10px}.side a.on{box-shadow:inset 0 -2px 0 var(--pri)}.side .cap{display:none}
.page{padding:20px 16px}
.stats{grid-template-columns:1fr 1fr}.row{display:block}
.cols{grid-template-columns:1fr}
.kv,.map dl{grid-template-columns:1fr;gap:2px}.kv dd,.map dd{margin-bottom:10px}
.diff{grid-template-columns:1fr}
.phone{padding:32px 12px}
}