:root {
    color-scheme: dark;
    --auth-canvas: #0f1010;
    --auth-surface: #191a19;
    --auth-inset: #111211;
    --auth-text: #f4f2ed;
    --auth-muted: #aaa59c;
    --auth-line: rgba(255, 255, 255, .09);
    --auth-accent: #f04b23;
    --auth-accent-hover: #d93b17;
}

body {
    position: relative;
    padding: 20px;
    background: var(--auth-canvas);
    color: var(--auth-text);
}

body::before {
    content: "";
    position: fixed;
    inset: 0 0 auto;
    height: 4px;
    background: var(--auth-accent);
}

.auth-home-link {
    position: absolute;
    z-index: 10;
    top: 18px;
    left: 18px;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 44px;
    padding: 0 14px;
    border: 1px solid var(--auth-line);
    border-radius: 10px;
    color: var(--auth-muted);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 600;
}

.auth-home-link:hover { color: var(--auth-text); border-color: rgba(240, 75, 35, .45); }
.auth-home-link i { color: var(--auth-accent); }

.container {
    width: min(960px, 100%);
    height: min(640px, calc(100vh - 40px));
    min-height: 580px;
    background: var(--auth-surface);
    border: 1px solid var(--auth-line);
    border-radius: 24px;
    box-shadow: 0 28px 80px rgba(0, 0, 0, .38);
}

.form-box {
    width: 52%;
    padding: 42px 52px;
}

.form-box.login { left: 0; }
.form-box.register { left: 48%; padding: 26px 44px; }
.form-box form { max-width: 390px; margin: 0 auto; }

.form-box h1 {
    margin-bottom: 8px;
    color: var(--auth-text);
    font-size: clamp(1.65rem, 3vw, 2.15rem);
    line-height: 1.12;
    letter-spacing: -.04em;
}

.auth-eyebrow {
    display: block;
    margin-bottom: 9px;
    color: var(--auth-accent);
    font-size: 0.625rem;
    font-weight: 800;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.auth-form-copy {
    max-width: 340px;
    margin: 0 0 24px;
    color: var(--auth-muted);
    font-size: 0.75rem;
    line-height: 1.55;
}

.form-box.register .auth-form-copy { margin-bottom: 14px; }
.input-box { margin-bottom: 14px; }
.form-box.register .input-box { margin-bottom: 10px; }

.input-box input {
    min-height: 48px;
    padding: 12px 46px 12px 16px;
    background: var(--auth-inset);
    border: 1px solid var(--auth-line);
    border-radius: 10px;
    color: var(--auth-text);
    font-size: 0.8125rem;
    font-weight: 500;
    transition: border-color .15s, box-shadow .15s, background-color .15s;
}

.form-box.register .input-box input { min-height: 44px; padding-block: 10px; }
.input-box input::placeholder { color: #77736d; }
.input-box input:focus { background: #0d0e0d; border-color: var(--auth-accent); box-shadow: 0 0 0 3px rgba(240, 75, 35, .14); }
.input-box i { color: #77736d; }
.input-box:focus-within i { color: var(--auth-accent); }

.forgot-link { display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:4px 12px; margin: -3px 0 18px; }
.forgot-link a { min-height:44px; display:inline-flex; align-items:center; color: var(--auth-muted); font-weight: 600; }
.forgot-link a:hover { color: var(--auth-accent); }

.btn {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 0 18px;
    background: var(--auth-accent);
    border-radius: 10px;
    font-weight: 700;
}

.btn i { line-height: 1; }
.btn:hover { background: var(--auth-accent-hover); }

.alert {
    margin: 0 0 14px;
    padding: 11px 13px;
    background: rgba(197, 59, 51, .12);
    border-color: rgba(197, 59, 51, .36);
    color: #f08b85;
}

.field-error {
    display: block;
    margin: -6px 0 8px;
    padding: 0 6px;
    color: #f08b85;
    font-size: 0.625rem;
    font-weight: 600;
}

.password-hint,
.register-note {
    display: block;
    margin: -4px 0 9px;
    padding: 0 6px;
    color: #858079;
    font-size: 0.5625rem;
    line-height: 1.4;
}

.register-note { margin: 1px 0 10px; }

.toggle-box {
    right: 0;
    width: 48%;
    background: #141514;
    border-left: 1px solid var(--auth-line);
    border-radius: 0 23px 23px 0;
}

.toggle-box::before {
    content: "";
    position: absolute;
    inset: 18px;
    border: 1px solid rgba(255, 255, 255, .055);
    border-radius: 16px;
    background: url('../img/court-lines.svg') center / contain no-repeat;
    opacity: .075;
    filter: grayscale(1) contrast(.62);
}

.toggle-box::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(15, 16, 16, .3);
    pointer-events: none;
}

.auth-field > label { display: block; margin: 0 0 6px 3px; color: #d8d4cc; font-size: 0.625rem; font-weight: 750; }
.field-help { display: block; margin: -8px 4px 10px; color: #858079; font-size: 0.5625rem; line-height: 1.4; }
.verification-channel { margin: 0 0 12px; padding: 0; border: 0; }
.verification-channel legend { margin: 0 0 7px 3px; color: #d8d4cc; font-size: 0.625rem; font-weight: 750; }
.verification-channel__options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.verification-channel__options label { position: relative; min-width: 0; cursor: pointer; }
.verification-channel__options input { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.verification-channel__options span { min-height: 58px; display: grid; align-content: center; gap: 2px; padding: 9px 11px; background: var(--auth-inset); border: 1px solid var(--auth-line); border-radius: 10px; transition: border-color .15s, box-shadow .15s, background-color .15s; }
.verification-channel__options strong { color: var(--auth-text); font-size: 0.625rem; }
.verification-channel__options small { color: var(--auth-muted); font-size: 0.5rem; line-height: 1.35; }
.verification-channel__options input:checked + span { background: rgba(240,75,35,.08); border-color: var(--auth-accent); }
.verification-channel__options input:focus-visible + span { box-shadow: 0 0 0 3px rgba(240,75,35,.18); }
.verification-channel .field-error { margin-top: 6px; }
.alert--success { background: rgba(39,174,96,.08); border-color: rgba(39,174,96,.25); color: #74d99a; }

.toggle-panel { z-index: 1; gap: 0; padding: 52px 54px; }
.auth-brand-logo { width: 148px; height: 74px; object-fit: contain; margin-bottom: 18px; }
.auth-brand-kicker { color: var(--auth-accent); font-size: 0.625rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }

.toggle-panel h1,
.toggle-panel h2 {
    margin: 14px 0 12px;
    color: var(--auth-text);
    font-size: clamp(1.65rem, 3vw, 2.25rem);
    line-height: 1.08;
    letter-spacing: -.045em;
}

.toggle-panel p { max-width: 330px; color: var(--auth-muted); font-size: 0.75rem; line-height: 1.6; }

.auth-feature-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 7px 14px;
    margin: 22px 0 18px;
    color: #d2cec7;
    font-size: 0.625rem;
    font-weight: 700;
}

.auth-feature-list span { display: inline-flex; align-items: center; gap: 6px; }
.auth-feature-list i { color: var(--auth-accent); }

.toggle-panel .btn {
    min-height: 44px;
    margin-top: 10px;
    padding: 0 22px;
    background: transparent;
    border: 1px solid rgba(240, 75, 35, .7);
    border-radius: 10px;
    color: var(--auth-text);
}

.toggle-panel .btn:hover { background: rgba(240, 75, 35, .12); }
.container.active .toggle-box { right: 52%; border: 0; border-right: 1px solid var(--auth-line); border-radius: 23px 0 0 23px; }
.container.active .form-box.register { left: 48%; }

@media (max-width: 768px) {
    body { display: block; padding: 20px 14px; }
    .auth-home-link { top: 14px; left: 14px; }
    .container { width: 100%; height: auto; min-height: 0; border-radius: 18px; }
    .form-box { width: 100%; padding: 76px 22px 26px; }
    .form-box.register { padding: 76px 22px 24px; }
    .form-box h1 { font-size: 1.65rem; }
    .toggle-box,
    .container.active .toggle-box { width: 100%; border: 0; border-top: 1px solid var(--auth-line); border-radius: 0 0 17px 17px; }
    .toggle-box::before,
    .toggle-box::after { display: none; }
    .toggle-panel { padding: 28px 22px; }
    .auth-brand-logo { width: 112px; height: 56px; margin-bottom: 12px; }
    .toggle-panel h1 { font-size: 1.55rem; }
    .auth-feature-list { margin: 16px 0 10px; }
}

@media (prefers-reduced-motion: reduce) {
    .container,
    .form-box,
    .toggle-box,
    .toggle-panel { transition: none; }
}

.auth-standalone-page {
    display: grid;
    place-items: center;
    min-height: 100vh;
}

.auth-standalone {
    position: relative;
    width: min(520px, 100%);
    padding-top: 66px;
}

.auth-standalone .auth-home-link {
    top: 8px;
    left: 0;
}

.auth-verification-card {
    padding: clamp(26px, 6vw, 46px);
    background: var(--auth-surface);
    border: 1px solid var(--auth-line);
    border-radius: 20px;
    box-shadow: 0 28px 80px rgba(0, 0, 0, .32);
}

.auth-verification-card h1 {
    margin: 0 0 10px;
    color: var(--auth-text);
    font-size: clamp(1.75rem, 6vw, 2.35rem);
    line-height: 1.08;
    letter-spacing: -.045em;
}

.auth-verification-card > p {
    margin: 0 0 24px;
    color: var(--auth-muted);
    font-size: 0.8125rem;
    line-height: 1.6;
}

.auth-verification-card > p strong { color: var(--auth-text); }
.auth-verification-card .input-box input {
    padding-inline: 18px;
    text-align: center;
    font-size: 1.45rem;
    font-weight: 750;
    letter-spacing: .28em;
}

.verification-timer {
    min-height: 38px;
    display: grid;
    place-items: center;
    margin-top: 14px;
    color: var(--auth-muted);
    font-size: 0.6875rem;
}

.verification-actions {
    display: grid;
    gap: 10px;
    padding-top: 14px;
    border-top: 1px solid var(--auth-line);
}

.verification-actions form { display: grid; justify-items: center; gap: 4px; }
.verification-actions small { color: #858079; font-size: 0.5625rem; }
.auth-text-button {
    min-height: 42px;
    padding: 0 10px;
    background: transparent;
    border: 0;
    color: var(--auth-accent);
    font: inherit;
    font-size: 0.6875rem;
    font-weight: 700;
    cursor: pointer;
}
.auth-text-button:hover { color: var(--auth-text); }
.auth-text-button:disabled { color: #6e6b66; cursor: not-allowed; }

@media (max-width: 520px) {
    .auth-standalone-page { padding: 14px; }
    .auth-standalone { padding-top: 58px; }
    .auth-verification-card { border-radius: 16px; }
    .verification-channel__options { grid-template-columns: 1fr; }
}

.two-factor-shell { width: min(620px, 100%); }
.two-factor-card { padding: clamp(24px, 5vw, 42px); }
.two-factor-heading { text-align: center; }
.two-factor-heading > p { margin: 0 auto 24px; max-width: 470px; color: var(--auth-muted); font-size: 0.8125rem; line-height: 1.65; }
.two-factor-logo { width: 112px; height: 58px; object-fit: contain; margin-bottom: 12px; }
.two-factor-setup { display: grid; gap: 16px; margin: 4px 0 22px; }
.two-factor-step { display: flex; align-items: flex-start; gap: 12px; }
.two-factor-step-number { display: grid; place-items: center; flex: 0 0 28px; width: 28px; height: 28px; border: 1px solid rgba(240,75,35,.55); border-radius: 50%; color: var(--auth-accent); font-size: 0.6875rem; font-weight: 800; }
.two-factor-step div { display: grid; gap: 2px; }
.two-factor-step strong { color: var(--auth-text); font-size: 0.8125rem; }
.two-factor-step small { color: var(--auth-muted); font-size: 0.625rem; line-height: 1.5; }
.two-factor-qr { width: min(240px, 76vw); aspect-ratio: 1; margin: 0 auto; padding: 10px; overflow: hidden; background: #fff; border: 1px solid var(--auth-line); border-radius: 14px; }
.two-factor-qr img { display: block; width: 100%; height: 100%; object-fit: contain; }
.two-factor-manual, .two-factor-recovery { border: 1px solid var(--auth-line); border-radius: 10px; background: var(--auth-inset); }
.two-factor-manual summary, .two-factor-recovery summary { min-height: 44px; display: flex; align-items: center; padding: 0 14px; color: var(--auth-muted); cursor: pointer; font-size: 0.6875rem; font-weight: 700; }
.two-factor-manual p { margin: 0; padding: 0 14px 8px; color: var(--auth-muted); font-size: 0.625rem; }
.two-factor-manual code { display: block; margin: 0 14px 14px; padding: 10px; overflow-wrap: anywhere; background: #0b0c0b; border-radius: 7px; color: var(--auth-text); text-align: center; letter-spacing: .12em; }
.two-factor-form { display: grid; gap: 9px; }
.two-factor-form label, .two-factor-recovery label { color: #d8d4cc; font-size: 0.625rem; font-weight: 750; }
.two-factor-code, .two-factor-recovery input { width: 100%; min-height: 52px; padding: 10px 16px; background: var(--auth-inset); border: 1px solid var(--auth-line); border-radius: 10px; color: var(--auth-text); text-align: center; font: inherit; font-size: 1.45rem; font-weight: 750; letter-spacing: .28em; }
.two-factor-code:focus, .two-factor-recovery input:focus { outline: 0; border-color: var(--auth-accent); box-shadow: 0 0 0 3px rgba(240,75,35,.14); }
.two-factor-form > small { color: var(--auth-muted); font-size: 0.5625rem; text-align: center; }
.two-factor-form .btn { width: 100%; margin-top: 5px; }
.two-factor-recovery { margin-top: 18px; }
.two-factor-recovery form { display: grid; gap: 9px; padding: 0 14px 14px; }
.two-factor-recovery input { min-height: 46px; font-size: 0.875rem; letter-spacing: .13em; }
.recovery-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 20px 0; padding: 0; list-style: none; }
.recovery-grid li { padding: 12px; background: var(--auth-inset); border: 1px solid var(--auth-line); border-radius: 9px; text-align: center; }
.recovery-grid code { color: var(--auth-text); font-size: 0.875rem; letter-spacing: .08em; }
.recovery-warning { font-size: 0.6875rem; line-height: 1.5; }
.copy-feedback { min-height: 18px; margin: 0 0 8px; color: #74d99a; font-size: 0.625rem; text-align: center; }
.recovery-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.recovery-actions .btn { grid-column: 1 / -1; text-decoration: none; }
.auth-secondary-button { min-height: 44px; padding: 0 14px; background: transparent; border: 1px solid var(--auth-line); border-radius: 10px; color: var(--auth-text); font: inherit; font-size: 0.6875rem; font-weight: 700; cursor: pointer; }
.auth-secondary-button:hover { border-color: rgba(240,75,35,.55); color: var(--auth-accent); }
.two-factor-card :focus-visible { outline: 3px solid rgba(240,75,35,.55); outline-offset: 3px; }
.two-factor-card button:disabled, .two-factor-card input:disabled { opacity: .55; cursor: not-allowed; }

@media (max-width: 700px) {
    .two-factor-shell { padding-top: 58px; }
    .two-factor-card { padding: 24px 18px; border-radius: 16px; }
    .recovery-grid { grid-template-columns: 1fr; }
    .recovery-actions { grid-template-columns: 1fr; }
    .recovery-actions .btn { grid-column: auto; }
}

@media print {
    body.auth-standalone-page { background: #fff; color: #111; padding: 0; }
    .recovery-card { box-shadow: none; border: 0; }
    .recovery-actions, .auth-home-link, body::before { display: none !important; }
    .recovery-grid li { border-color: #bbb; background: #fff; }
    .recovery-grid code, .recovery-card h1, .recovery-card p { color: #111; }
}