:root { color-scheme: dark; font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif; background: #0d1117; color: #f1f5f9; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at 20% 0%, #17253a, transparent 42%), #0d1117; }
.shell { width: min(1080px, calc(100% - 40px)); margin: 0 auto; padding: 56px 0; }
.shell--admin { width: min(1120px, calc(100% - 40px)); }
.shell--narrow { display: grid; place-items: center; min-height: 100vh; width: min(460px, calc(100% - 32px)); padding: 24px 0; }
.panel, .messenger-card { border: 1px solid #263449; background: rgba(20, 29, 43, .9); border-radius: 20px; box-shadow: 0 18px 55px rgba(0,0,0,.2); }
.auth-panel { width: 100%; padding: 36px; }
.eyebrow { color: #7dd3fc; font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
h1 { margin: 9px 0 10px; font-size: clamp(28px, 5vw, 42px); line-height: 1.08; }
h2 { margin: 0; font-size: 22px; }
.muted { color: #9aa9bc; line-height: 1.55; }
label { display: block; margin: 22px 0 8px; color: #cbd5e1; font-size: 14px; }
input { width: 100%; border: 1px solid #334155; border-radius: 11px; background: #111a27; color: #fff; padding: 13px 14px; font: inherit; outline: none; }
input:focus { border-color: #38bdf8; box-shadow: 0 0 0 3px rgba(56,189,248,.14); }
.button { border: 0; border-radius: 11px; cursor: pointer; color: #e2e8f0; padding: 12px 17px; font: inherit; font-weight: 700; }
.button:disabled { cursor: wait; opacity: .65; }
.button--primary { display: flex; justify-content: center; align-items: center; gap: 10px; width: 100%; margin-top: 26px; background: #38bdf8; color: #07111d; }
.button--ghost { border: 1px solid #334155; background: transparent; }
.form-error { margin: 15px 0 0; color: #fda4af; font-size: 14px; line-height: 1.45; }
.loader { width: 16px; height: 16px; border: 2px solid rgba(7,17,29,.3); border-top-color: #07111d; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.topbar { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 32px; }
.topbar h1 { margin-bottom: 0; }
.account { display: flex; align-items: center; gap: 14px; color: #cbd5e1; white-space: nowrap; }
.intro { padding: 26px 28px; margin-bottom: 18px; }
.intro p { margin-bottom: 0; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.messenger-card { padding: 26px; min-height: 220px; position: relative; }
.messenger-card h2 { margin-top: 22px; }
.messenger-card p { color: #9aa9bc; line-height: 1.5; max-width: 240px; }
.messenger-card--disabled { opacity: .74; }
.card-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: #1e3a56; color: #7dd3fc; font-size: 12px; font-weight: 800; }
.badge { position: absolute; right: 22px; top: 22px; padding: 5px 9px; border-radius: 99px; color: #fcd34d; background: rgba(180,83,9,.18); font-size: 11px; }
.admin-form { display: grid; gap: 20px; }.admin-groups { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }.admin-card { padding: 24px; border: 1px solid #263449; background: rgba(20,29,43,.9); border-radius: 18px; }.admin-card h2 { margin-bottom: 18px; color: #e0f2fe; }.admin-field { display: block; margin: 16px 0 0; }.admin-field > span, .check-row { color: #cbd5e1; font-size: 13px; }.admin-field input { margin-top: 7px; }.configured { color: #86efac; font-style: normal; font-size: 11px; }.check-row { display: flex; align-items: center; gap: 10px; margin: 17px 0 0; cursor: pointer; }.check-row input { width: 17px; height: 17px; accent-color: #38bdf8; }.admin-actions { display: flex; align-items: center; gap: 16px; }.admin-actions .button--primary { width: auto; margin-top: 0; }.form-status { color: #86efac; font-size: 14px; }.form-status--error { color: #fda4af; }.admin-note { font-size: 13px; }
@media (max-width: 760px) { .topbar { align-items: flex-start; flex-direction: column; } .cards { grid-template-columns: 1fr; } .account { width: 100%; justify-content: space-between; } .auth-panel { padding: 28px 22px; } }
@media (max-width: 860px) { .admin-groups { grid-template-columns: 1fr; } }