:root {
    --auth-ink: #101828;
    --auth-muted: #667085;
    --auth-line: #d0d5dd;
    --auth-blue: #155eef;
}

* {
    box-sizing: border-box;
}

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    color: var(--auth-ink);
    background: #f4f6f9;
    font-family: Inter, "Segoe UI", Arial, sans-serif;
}

.auth-shell {
    display: grid;
    min-height: 100vh;
    grid-template-columns: minmax(320px, 0.85fr) minmax(420px, 1.15fr);
}

.auth-brand-panel {
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: clamp(2rem, 7vw, 5rem);
    color: #fff;
    background: linear-gradient(145deg, #101828, #153567 70%, #155eef);
}

.brand-logo {
    display: grid;
    width: 68px;
    height: 68px;
    margin-bottom: 1.5rem;
    background: #155eef;
    border: 1px solid #84adff;
    border-radius: 18px;
    font-size: 1.25rem;
    font-weight: 900;
    place-items: center;
}

.auth-brand-panel > span,
.eyebrow {
    color: #84adff;
    font-size: 0.7rem;
    font-weight: 900;
    letter-spacing: 0.12em;
}

.auth-brand-panel h1 {
    margin: 0.35rem 0 0.6rem;
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 900;
    letter-spacing: -0.045em;
}

.auth-brand-panel p,
.auth-brand-panel li {
    color: #d0d5dd;
}

.auth-brand-panel ul {
    margin: 1rem 0 0;
    padding-left: 1.2rem;
}

.auth-form-panel,
.otp-page {
    display: grid;
    padding: 1.2rem;
    place-items: center;
}

.auth-form-card,
.otp-card {
    width: min(100%, 520px);
    padding: clamp(1.25rem, 4vw, 2rem);
    background: #fff;
    border: 1px solid var(--auth-line);
    border-radius: 20px;
    box-shadow: 0 18px 55px rgba(16, 24, 40, 0.1);
}

.auth-form-card h2,
.otp-card h1 {
    margin: 0.25rem 0;
    font-size: 1.8rem;
    font-weight: 900;
}

.auth-form-card > p,
.otp-card > p {
    color: var(--auth-muted);
}

.form-label {
    margin-bottom: 0.35rem;
    font-size: 0.8rem;
    font-weight: 850;
}

.form-control,
.btn {
    min-height: 49px;
    border-radius: 11px;
}

.btn {
    font-weight: 850;
}

.auth-help {
    margin-top: 1rem;
    padding: 0.85rem;
    color: var(--auth-muted);
    background: #f8fafc;
    border-radius: 10px;
    font-size: 0.76rem;
}

.otp-page {
    min-height: 100vh;
    background: linear-gradient(145deg, #101828, #155eef);
}

.otp-card {
    text-align: center;
}

.security-icon {
    display: grid;
    width: 58px;
    height: 58px;
    margin: 0 auto 1rem;
    color: #fff;
    background: #079455;
    border-radius: 50%;
    font-size: 1.35rem;
    font-weight: 900;
    place-items: center;
}

.otp-input {
    height: 68px;
    text-align: center;
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: 0.4em;
}

.resend-form {
    margin-top: 0.55rem;
}

.resend-form .btn {
    min-height: auto;
}

.cancel-link {
    display: inline-block;
    margin-top: 0.5rem;
    color: var(--auth-muted);
    font-size: 0.8rem;
}

@media (max-width: 799.98px) {
    .auth-shell {
        grid-template-columns: 1fr;
    }

    .auth-brand-panel {
        min-height: 300px;
        padding: 2rem 1.2rem;
    }

    .auth-brand-panel ul {
        display: none;
    }

    .auth-form-panel {
        padding: 1rem;
    }
}