:root { --bg: #0a0e17; --card: #121826; --field: #0d1320; --line: #232a3b; --text: #d6dae3; --muted: #8a91a3; --accent: #3b82f6; --up: #26a69a; --down: #ef5350; color-scheme: dark; }
:root[data-theme="light"] { --bg: #eef1f5; --card: #ffffff; --field: #f7f8fa; --line: #d3d9e3; --text: #131722; --muted: #5d6576; --accent: #2962ff; --up: #067a67; --down: #d32f2f; color-scheme: light; }
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { min-height: 100dvh; display: grid; place-items: center; padding: 16px; background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(59,130,246,.14), transparent), var(--bg); color: var(--text); font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.card { width: 100%; max-width: 380px; padding: 28px 24px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 20px 50px rgba(0,0,0,.45); }
.brand { display: inline-flex; align-items: center; gap: 8px; color: inherit; text-decoration: none; font-weight: 700; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--up); box-shadow: 0 0 8px rgba(38,166,154,.8); }
h1 { font-size: 20px; margin: 18px 0 16px; }
label { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; font-size: 12px; color: var(--muted); }
input { height: 38px; padding: 0 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--field); color: var(--text); font: inherit; }
input:focus-visible, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.btn { width: 100%; height: 40px; border-radius: 8px; border: 1px solid var(--line); background: transparent; color: var(--text); font: inherit; font-weight: 600; cursor: pointer; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn:disabled { opacity: .6; cursor: progress; }
.divider { display: flex; align-items: center; gap: 10px; margin: 16px 0; color: var(--muted); font-size: 12px; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.msg { min-height: 1.4em; margin: 14px 0 0; font-size: 13px; color: var(--up); }
.msg.error { color: var(--down); }
p { color: var(--muted); }
.fallback { margin: 4px 0 14px; padding: 10px 12px 2px; border: 1px solid var(--line); border-radius: 10px; }
.fallback legend { padding: 0 6px; font-size: 12px; color: var(--text); }
.hint { margin: 0 0 10px; font-size: 12px; }