:root{--ink:#16323c;--paper:#f4f1ea;--panel:#fffdf8;--line:#d6ddd8;--mint:#0f766e;--soft:#e4efe9}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:radial-gradient(circle at 10% 0,#e7f0dc 0,transparent 31rem),var(--paper);font-family:Georgia,Times New Roman,serif}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}.login-shell{min-height:100vh;display:grid;place-items:center;padding:2rem}.history-panel,.login-panel,.send-panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:0 18px 45px #19343a14}.login-panel{width:min(100%,27rem);padding:2.5rem}.eyebrow{margin:0 0 .25rem;color:var(--mint);font:700 .78rem/1.2 ui-monospace,monospace;letter-spacing:.12em;text-transform:uppercase}h1,h2,p{margin-top:0}h1{font-size:clamp(2rem,4vw,3.1rem);line-height:1}h2{font-size:1.45rem;margin-bottom:.35rem}.muted,.section-heading p{color:#587078;line-height:1.5}.form-stack{display:grid;gap:1rem;margin-top:1.5rem}label{display:grid;gap:.4rem;font-weight:700}input,select,textarea{width:100%;padding:.75rem .8rem;border:1px solid #aebdb7;border-radius:4px;color:var(--ink);background:#fff}textarea{resize:vertical}button{border:0;border-radius:4px;padding:.8rem 1rem;cursor:pointer;color:#fff;background:var(--mint);font-weight:700}button:hover{background:#0b5f59}.text-button{padding:.35rem .45rem;color:var(--mint);background:transparent}.text-button:hover{background:var(--soft)}.notice{margin:1rem 0 0;padding:.75rem;border-radius:4px;line-height:1.35}.success{color:#14532d;background:#dcfce7}.error{color:#7c2d12;background:#ffedd5}.app-shell{min-height:100vh}.topbar{display:flex;justify-content:space-between;gap:1rem;align-items:end;padding:2rem clamp(1.25rem,6vw,6rem);background:#fbfaf5d9;border-bottom:1px solid var(--line)}.topbar h1{font-size:2rem}.topbar nav{display:flex;align-items:center;gap:1rem;font-family:ui-sans-serif,sans-serif}.topbar nav a{color:var(--mint);font-weight:700}.workspace{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(20rem,.95fr);gap:1.25rem;width:min(100% - 2.5rem,75rem);margin:2rem auto}.history-panel,.send-panel{padding:clamp(1.2rem,3vw,2rem)}.history-panel{background:#f9fbf7}.activity-list{display:grid;gap:.2rem;margin-top:1rem}.activity{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--line);font-family:ui-sans-serif,sans-serif}.activity div{min-width:0;display:grid;gap:.25rem}.activity small,.activity span{color:#587078;font-size:.85rem;overflow-wrap:anywhere}.admin-grid{grid-template-columns:minmax(18rem,.8fr) minmax(24rem,1.2fr)}.counter-strip,.single-panel{width:min(100% - 2.5rem,75rem);margin:1.5rem auto 0}.counter-strip{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.25rem;border-left:5px solid var(--mint);background:var(--soft)}.counter-strip div{display:flex;align-items:baseline;gap:.5rem}.counter-strip strong{font:700 2rem/1 ui-monospace,monospace}.counter-strip p{margin:0;color:#587078}.single-panel{max-width:56rem}.group-list{margin-top:2rem}.group-list p{display:flex;justify-content:space-between;padding:.55rem 0;border-bottom:1px solid var(--line)}.group-list span{color:#587078}@media (max-width:760px){.topbar{align-items:start;flex-direction:column}.admin-grid,.workspace{grid-template-columns:1fr;width:min(100% - 1.5rem,40rem);margin:1rem auto}.topbar nav{flex-wrap:wrap}}