/* Вход и регистрация онлайн-версии SERP-X: фирменные цвета программы (#F4F6FA фон, #3154F4 действие, огонь логотипа). */
:root { --bg: #f4f6fa; --card: #fff; --ink: #14161a; --muted: #6b7280; --line: #dfe3ea; --accent: #3154f4; --accent-hover: #2742d6; --error: #c4321c; --ok: #12805c; color-scheme: light; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #101215; --card: #171a20; --ink: #e7e9ee; --muted: #9aa3b2; --line: #2a2f38; --accent: #5b78ff; --accent-hover: #7690ff; --error: #ff7a66; --ok: #4cc79a; color-scheme: dark; }
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--ink); font: 15px/1.5 -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
.auth { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 22px; padding: 32px max(16px, env(safe-area-inset-left, 0px)); }
.auth-logo img { display: block; height: 34px; }
@media (prefers-color-scheme: dark) { .auth-logo img { content: url("/assets/logo-dark.png"); } }
.auth-card { width: 100%; max-width: 420px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px; box-shadow: 0 18px 40px -28px rgba(20, 22, 26, .35); }
.auth-card h1 { margin: 0 0 6px; font-size: 22px; line-height: 1.25; text-wrap: balance; }
.auth-card .lead { margin: 0 0 20px; color: var(--muted); }
.auth-form { display: grid; gap: 14px; }
.auth-form label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; }
.auth-form input[type="email"], .auth-form input[type="password"] { width: 100%; border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 10px; padding: 11px 12px; font: inherit; }
.auth-form input:focus { outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent); border-color: var(--accent); }
.auth-form .check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; color: var(--muted); }
.auth-form .check input { margin-top: 3px; }
.auth-form button { border: 0; background: var(--accent); color: #fff; border-radius: 10px; padding: 12px 16px; font: inherit; font-weight: 700; cursor: pointer; }
.auth-form button:hover { background: var(--accent-hover); }
.auth-form button:disabled { opacity: .6; cursor: default; }
.auth-error { color: var(--error); font-size: 14px; min-height: 0; }
.auth-error:empty { display: none; }
.auth-done { color: var(--ok); }
.auth-links { margin-top: 18px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 16px; font-size: 14px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.auth-foot { margin: 0; color: var(--muted); font-size: 13px; text-align: center; max-width: 420px; }
.secondary { background: transparent !important; color: var(--accent) !important; border: 1px solid var(--line) !important; }
.auth-button { display: block; text-align: center; border-radius: 10px; padding: 12px 16px; font-weight: 700; background: var(--accent); color: #fff; text-decoration: none; }
.auth-button:hover { background: var(--accent-hover); text-decoration: none; }
.auth-button.secondary:hover { background: transparent; border-color: var(--accent) !important; }
.doc { max-width: 760px; }
.doc h2 { font-size: 17px; margin: 22px 0 6px; }
.doc p, .doc li { color: var(--ink); }
.todo { background: color-mix(in srgb, #ffb020 22%, transparent); border-radius: 4px; padding: 0 4px; }