:root {
    color-scheme: dark;
    --ink: #0b1020;
    --paper: #f0f4f7;
    --muted: #9aa8bb;
    --quiet: #718098;
    --mint: #75e2bd;
    --line: rgba(157, 176, 199, 0.18);
    --error: #ff9b9b;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    display: grid;
    place-items: center;
    padding: 40px 20px;
    background: radial-gradient(ellipse at 50% 37%, rgba(30, 58, 69, 0.25), transparent 58%), var(--ink);
    color: var(--paper);
    font-family: Inter, "Segoe UI", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

a:focus-visible,
button:focus-visible,
.login-form input:focus-visible {
    outline: 2px solid var(--mint);
    outline-offset: 4px;
}

.auth-shell {
    width: min(100%, 400px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--paper);
    font-size: 15px;
    font-weight: 650;
    letter-spacing: -0.035em;
}

.brand-mark {
    width: 29px;
    height: 29px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(117, 226, 189, 0.58);
}

.brand-mark svg {
    width: 18px;
    height: 18px;
    stroke: var(--mint);
    stroke-width: 1.35;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.brand-accent {
    color: var(--mint);
}

.auth-panel {
    margin-top: 34px;
    padding: 37px 36px 32px;
    border: 1px solid var(--line);
    background: rgba(16, 24, 42, 0.72);
}

.eyebrow {
    margin: 0;
    color: var(--mint);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.18em;
}

.auth-panel h1 {
    margin: 13px 0 9px;
    font-size: 32px;
    font-weight: 560;
    letter-spacing: -0.055em;
}

.auth-intro {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
}

.login-form {
    display: grid;
    gap: 20px;
    margin-top: 29px;
}

.field {
    display: grid;
    gap: 8px;
}

.field label {
    color: var(--paper);
    font-size: 12px;
    font-weight: 550;
}

.login-form input {
    width: 100%;
    height: 43px;
    padding: 0 12px;
    border: 1px solid rgba(157, 176, 199, 0.24);
    border-radius: 0;
    background: rgba(11, 16, 32, 0.7);
    color: var(--paper);
    font: inherit;
    font-size: 13px;
}

.login-form input:focus {
    border-color: rgba(117, 226, 189, 0.7);
    outline: none;
}

.submit-button {
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 2px;
    border: 0;
    background: var(--mint);
    color: var(--ink);
    font: inherit;
    font-size: 13px;
    font-weight: 650;
    cursor: pointer;
    transition: background-color 160ms ease;
}

.submit-button:hover {
    background: #91edce;
}

.submit-button svg {
    width: 17px;
    height: 17px;
    stroke: currentColor;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.form-errors,
.field-error {
    color: var(--error);
    font-size: 12px;
    line-height: 1.55;
}

.form-errors ul,
.field-error ul {
    margin: 0;
    padding-left: 18px;
}

.back-link {
    display: inline-block;
    margin-top: 25px;
    color: var(--muted);
    font-size: 12px;
    transition: color 160ms ease;
}

.back-link:hover {
    color: var(--mint);
}

.auth-footnote {
    margin: 21px 0 0;
    color: var(--quiet);
    font-size: 10px;
    letter-spacing: 0.03em;
}

@media (max-width: 420px) {
    .auth-panel {
        padding: 30px 23px 27px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
    }
}