:root {
    --black: #080808;
    --dark: #111111;
    --white: #ffffff;
    --soft: #f4f4f4;
    --line: #d7d7d7;
    --muted: #707070;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; margin: 0; }
body { color: var(--black); background: var(--soft); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; }
.auth-page { min-height: 100vh; padding: 30px 15px; background-color: var(--black); background-image: linear-gradient(135deg, #050505 0%, #191919 52%, #050505 100%); }
.auth-shell { width: 100%; max-width: 980px; min-height: 600px; margin: 0 auto; display: table; table-layout: fixed; overflow: hidden; background: var(--white); box-shadow: 0 18px 50px rgba(0, 0, 0, .45); }
.auth-intro, .auth-card { display: table-cell; vertical-align: middle; }
.auth-intro { width: 45%; padding: 54px 46px; color: var(--white); background: var(--dark); }
.auth-card { width: 55%; padding: 54px 58px; }
.brand-logo { display: block; width: 100%; max-width: 430px; height: auto; margin: 0 0 52px; }
.intro-rule { width: 48px; height: 4px; margin: 0 0 24px; background: var(--white); }
.auth-intro p { max-width: 300px; margin: 0; color: #e7e7e7; font-size: 25px; font-weight: 300; line-height: 1.25; }
.platforms { margin-top: 58px; }
.platforms-title { margin: 0 0 15px; color: #999; font-size: 10px; font-weight: 700; letter-spacing: 2px; }
.platform-links { margin: 0; padding: 0; list-style: none; }
.platform-links li { display: inline-block; margin-right: 17px; }
.platform-links a { color: #fff; font-size: 14px; text-decoration: none; }
.platform-links a:hover { color: #bdbdbd; }
.platform-links i { margin-right: 5px; font-size: 17px; }
.auth-card-head { margin-bottom: 28px; }
.eyebrow { color: #777; font-size: 11px; font-weight: 700; letter-spacing: 2px; }
.auth-card h1 { margin: 12px 0 8px; font-size: 30px; font-weight: 600; line-height: 1.15; }
.auth-card-head p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.auth-form { margin: 0; }
.auth-form label { display: block; margin-bottom: 18px; color: #333; font-size: 13px; font-weight: 600; }
.auth-form small { color: var(--muted); font-weight: 400; }
.auth-form .form-control { height: 46px; margin-top: 7px; border: 1px solid var(--line); border-radius: 0; box-shadow: none; color: var(--black); background: #fff; }
.auth-form .form-control:focus { border-color: var(--black); box-shadow: 0 0 0 2px #e2e2e2; }
.form-row { display: flex; align-items: center; justify-content: space-between; margin: -3px 0 20px; font-size: 12px; }
.form-row a, .auth-links a { color: var(--black); text-decoration: underline; }
.check, .sub-toggle { color: var(--muted) !important; font-weight: 400 !important; }
.check input, .sub-toggle input { margin: 0 6px 0 0; vertical-align: -2px; accent-color: var(--black); }
.primary-button { width: 100%; height: 48px; border: 0; border-radius: 0; color: #fff; background: var(--black); font-size: 14px; font-weight: 700; text-align: left; }
.primary-button:hover, .primary-button:focus { color: #fff; background: #333; }
.primary-button span { float: right; font-size: 21px; font-weight: 400; line-height: 16px; }
.sub-toggle { display: block !important; margin: 23px 0 0; padding-top: 18px; border-top: 1px solid var(--line); font-size: 12px; cursor: pointer; }
.auth-links { display: flex; justify-content: space-between; gap: 12px; margin-top: 27px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 12px; }
.alert { margin-bottom: 18px; border-radius: 0; font-size: 13px; line-height: 1.45; }
.alert.error { color: #222; border-color: #999; background: #ededed; }
.alert.success { color: #222; border-color: #999; background: #f5f5f5; }
@media (max-width: 767px) {
    .auth-page { padding: 15px; }
    .auth-shell { display: block; min-height: 0; }
    .auth-intro, .auth-card { display: block; width: 100%; }
    .auth-intro { padding: 35px 28px; }
    .brand-logo { max-width: 360px; margin-bottom: 34px; }
    .auth-intro p { font-size: 22px; }
    .platforms { margin-top: 35px; }
    .auth-card { padding: 35px 28px; }
    .auth-card h1 { font-size: 27px; }
}