:root { color-scheme: light dark; --ati-bg: #f4f6f9; --ati-text: #172b44; --ati-muted: #50617a; --ati-surface: #fff; --ati-action: #1c5fac; --ati-on-action: #fff; --ati-border: #ccd5e0; --ati-danger: #af2825; }
@media (prefers-color-scheme: dark) { :root { --ati-bg: #10161e; --ati-text: #f1f5fb; --ati-muted: #b3c0d1; --ati-surface: #1c2632; --ati-action: #a9ceff; --ati-on-action: #102844; --ati-border: #3c4c61; --ati-danger: #ffaaa1; } }
html, body, #root { height: 100%; margin: 0; }
body { background: var(--ati-bg); color: var(--ati-text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
#root { display: flex; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--ati-action); outline-offset: 3px; }
.ati-offline { display: grid; place-items: center; box-sizing: border-box; padding: max(24px, env(safe-area-inset-top)) 24px max(24px, env(safe-area-inset-bottom)); }
.ati-offline main { width: 100%; max-width: 420px; }
.ati-offline img { border-radius: 16px; }
.ati-offline .ati-brand { font-size: 15px; font-weight: 650; margin-top: 24px; }
.ati-offline h1 { font-size: clamp(27px, 6vw, 36px); line-height: 1.15; letter-spacing: -.025em; }
.ati-offline p { color: var(--ati-muted); font-size: 17px; line-height: 1.55; }
.ati-offline a, .ati-dialog button { display: inline-flex; align-items: center; justify-content: center; box-sizing: border-box; min-height: 44px; border: 0; border-radius: 12px; padding: 12px 20px; background: var(--ati-action); color: var(--ati-on-action); font: inherit; font-weight: 650; text-decoration: none; cursor: pointer; }
.ati-offline a { margin-top: 12px; }
.ati-dialog { box-sizing: border-box; width: calc(100% - 40px); max-width: 460px; max-height: calc(100dvh - 48px); overflow: auto; padding: 24px; border: 1px solid var(--ati-border); border-radius: 20px; color: var(--ati-text); background: var(--ati-surface); box-shadow: 0 24px 80px #0005; }
.ati-dialog::backdrop { background: #0008; }
.ati-dialog h2 { margin: 0 0 12px; font-size: 22px; letter-spacing: -.02em; }
.ati-dialog p { margin: 0 0 20px; color: var(--ati-muted); font-size: 17px; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere; }
.ati-dialog-actions { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 10px; }
.ati-dialog button.ati-dialog-danger { color: var(--ati-danger); background: transparent; box-shadow: inset 0 0 0 1px var(--ati-border); }