:root { color-scheme: light dark; --paper: #f4f5f7; --card: #fff; --ink: #0c0e12; --muted: #646b77; --line: #eceef2; --accent: #1a47d6; }
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
main { width: min(100% - 40px, 600px); margin: 0 auto; padding: 32px 0; }
.brand { display: flex; gap: 10px; align-items: center; font-size: 22px; font-weight: 700; letter-spacing: -.7px; margin-bottom: 28px; }
.mark { width: 31px; height: 31px; border-radius: 9px; background: var(--ink); display: grid; justify-items: center; align-content: center; gap: 4px; }
.mark i { display: block; width: 17px; height: 6px; border-radius: 6px; background: var(--card); }
.mark b { width: 5px; height: 5px; border-radius: 50%; background: #6e97ff; }
.shared { font-size: 13px; letter-spacing: 0; font-weight: 500; margin-left: auto; color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: 32px; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; }
h1 { font-size: clamp(28px, 6vw, 38px); line-height: 1.15; letter-spacing: -1.2px; margin: 0 0 30px; overflow-wrap: anywhere; white-space: pre-wrap; }
h2 { font-size: 22px; letter-spacing: -.6px; margin: 0 0 4px; }
.muted { color: var(--muted); margin: 0 0 20px; }
.details { margin: 0; }
.details > div { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 16px; margin: 20px 0; }
dt { color: var(--muted); font-size: 14px; }
dd { margin: 0; font-weight: 500; overflow-wrap: anywhere; white-space: pre-wrap; }
.secondary { display: block; color: var(--muted); font-size: 14px; font-weight: 400; margin-top: 3px; }
.calendar-options { border-top: 1px solid var(--line); padding-top: 26px; margin-top: 28px; }
.button { min-height: 52px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 14px; text-decoration: none; color: var(--ink); display: flex; justify-content: center; align-items: center; gap: 10px; font-size: 14px; font-weight: 650; cursor: pointer; }
.button.primary { background: var(--accent); color: #fff; border-color: transparent; font-size: 16px; }
.button:hover { filter: brightness(.94); }
.button:active { transform: scale(.985); }
.button[aria-disabled="true"] { opacity: .65; pointer-events: none; }
a:focus-visible { outline: 3px solid #6e97ff; outline-offset: 4px; }
.alternatives { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 20px; }
.hint { color: var(--muted); font-size: 12px; line-height: 1.6; margin: 10px 0 0; }
.app-option { border-top: 1px solid var(--line); margin-top: 26px; padding-top: 20px; display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; font-size: 13px; color: var(--muted); }
.app-option a { color: var(--accent); font-weight: 600; text-underline-offset: 3px; }
.error { color: #b42318; font-size: 13px; }
footer { color: var(--muted); text-align: center; font-size: 12px; margin: 24px 16px 0; }
[hidden] { display: none !important; }
@media (max-width: 380px) { main { width: calc(100% - 24px); padding-top: 22px; } .card { padding: 24px 20px; } .details > div { grid-template-columns: 48px minmax(0, 1fr); gap: 12px; } .alternatives { grid-template-columns: 1fr; } }
@media (prefers-color-scheme: dark) { :root { --paper: #0c0e12; --card: #16191f; --ink: #f2f4f7; --muted: #a0a7b3; --line: #2a2f38; --accent: #6e97ff; } .button.primary { color: #0c0e12; } .error { color: #ffb4ab; } }