:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif; background: #f4f7fb; color: #172033; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: linear-gradient(135deg, #f7faff, #eef3fb); }
a { color: #315ddc; }
.sandbox-page { padding-bottom: 4rem; }
.sandbox-login-shell { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.sandbox-card, .sandbox-panel { background: #fff; border: 1px solid #dfe6f1; border-radius: 18px; box-shadow: 0 18px 50px rgba(48, 72, 112, .08); }
.sandbox-card { width: min(100%, 31rem); padding: 2.25rem; }
.sandbox-kicker { color: var(--demo-brand-primary, #315ddc); font-size: .76rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1 { margin: .35rem 0 .65rem; font-size: clamp(2rem, 5vw, 3rem); line-height: 1.05; }
h2 { margin: 0 0 1rem; font-size: 1.1rem; }
.sandbox-muted { color: #647089; line-height: 1.6; }
.sandbox-demo-credentials { display: grid; gap: .25rem; margin: 1rem 0; padding: .85rem 1rem; border: 1px solid #bcd0ff; border-radius: 10px; background: #f3f6ff; color: #254ab5; font-size: .86rem; }
.sandbox-demo-credentials strong { font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.sandbox-demo-credentials code { color: #172033; font: inherit; font-weight: 750; overflow-wrap: anywhere; }
.sandbox-note, .sandbox-footer-note { color: #71809b; font-size: .84rem; line-height: 1.55; }
form { display: grid; gap: .55rem; }
label { font-size: .87rem; font-weight: 700; margin-top: .55rem; }
input, select { width: 100%; border: 1px solid #cbd5e5; border-radius: 10px; padding: .75rem .8rem; font: inherit; background: #fff; color: #172033; }
.sandbox-button { border: 0; border-radius: 10px; background: #e9efff; color: #254ab5; cursor: pointer; font: inherit; font-weight: 750; padding: .75rem 1rem; }
.sandbox-button-primary { background: #315ddc; color: #fff; margin-top: .75rem; }
.sandbox-back { display: inline-block; margin-top: 1.25rem; font-size: .9rem; }
.sandbox-header { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; padding: 1.25rem 0; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.sandbox-brand { color: #172033; font-size: .9rem; font-weight: 900; text-decoration: none; letter-spacing: .08em; }
.sandbox-brand span { color: #315ddc; font-size: .7rem; }
nav { display: flex; align-items: center; flex-wrap: wrap; gap: 1rem; font-size: .88rem; }
nav form { display: inline; }
.sandbox-link-button { border: 0; background: none; padding: 0; color: #315ddc; cursor: pointer; font: inherit; }
.sandbox-warning { width: min(1180px, calc(100% - 2rem)); margin: 0 auto 2rem; padding: .85rem 1rem; border: 1px solid #f0ca65; border-radius: 10px; background: #fff8dc; color: #795c00; font-size: .8rem; font-weight: 900; letter-spacing: .06em; }
.sandbox-warning span { font-weight: 500; letter-spacing: 0; margin-left: .5rem; }
.sandbox-main { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; }
.sandbox-heading { display: flex; justify-content: space-between; align-items: end; gap: 1rem; margin-bottom: 1.5rem; }
.sandbox-stat { text-align: right; color: #647089; }
.sandbox-stat strong { display: block; color: #172033; font-size: 2rem; }
.sandbox-stat span, .sandbox-stat-grid span { font-size: .8rem; }
.sandbox-panel { padding: 1.25rem; margin: 1rem 0; }
.sandbox-toolbar { display: grid; grid-template-columns: 1fr 12rem auto; gap: .65rem; align-items: end; }
.sandbox-upload { display: flex; flex-wrap: wrap; align-items: end; gap: .7rem; }
.sandbox-upload label { width: 100%; }
.sandbox-upload input[type=file] { flex: 1 1 20rem; }
.sandbox-panel-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.sandbox-panel-heading h2 span { color: #71809b; font-weight: 500; }
.sandbox-table-wrap { overflow-x: auto; }
.sandbox-table { width: 100%; min-width: 720px; border-collapse: collapse; font-size: .9rem; }
.sandbox-table th, .sandbox-table td { text-align: left; padding: .85rem .5rem; border-bottom: 1px solid #edf1f7; }
.sandbox-table th { color: #71809b; font-size: .73rem; letter-spacing: .06em; text-transform: uppercase; }
.sandbox-tag { display: inline-block; padding: .25rem .5rem; border-radius: 999px; background: #eef3ff; color: #315ddc; font-size: .75rem; }
.sandbox-pagination { display: flex; justify-content: center; gap: 1.5rem; margin-top: 1rem; font-size: .88rem; }
.sandbox-alert { border-radius: 9px; padding: .7rem .8rem; font-size: .88rem; }
.sandbox-alert-error { background: #fff0f0; color: #9b2323; }
.sandbox-alert-success { background: #ecfbf2; color: #176d3a; }
.sandbox-busy { display: grid; gap: .35rem; margin: 1rem 0; padding: .85rem 1rem; border: 1px solid #f0c36d; border-radius: .75rem; background: #fff8e7; color: #7a4c00; }
.sandbox-busy-ready { border-color: #9ed6b0; background: #effaf2; color: #1f6b37; }
.sandbox-button:disabled { cursor: wait; opacity: .6; }
.sandbox-stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.sandbox-stat-grid .sandbox-panel { margin: 0; }
.sandbox-stat-grid strong { display: block; font-size: 2rem; color: #315ddc; }
.sandbox-profile dl { display: grid; grid-template-columns: 10rem 1fr; gap: 1rem; margin: 0; }
.sandbox-profile dt { color: #71809b; font-weight: 750; }
.sandbox-profile dd { margin: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 700px) { .sandbox-header, .sandbox-heading { align-items: flex-start; flex-direction: column; } nav { gap: .7rem; } .sandbox-toolbar { grid-template-columns: 1fr; } .sandbox-stat { text-align: left; } .sandbox-stat-grid { grid-template-columns: 1fr; } .sandbox-profile dl { grid-template-columns: 1fr; gap: .25rem; } .sandbox-profile dd { margin-bottom: .85rem; } .sandbox-warning span { display: block; margin: .35rem 0 0; } }