.auth-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1.25rem;
}

.auth-panel {
    width: min(68rem, 100%);
    display: grid;
    grid-template-columns: minmax(17rem, 23rem) minmax(0, 1fr);
    gap: 1.2rem;
    align-items: stretch;
}

.auth-panel-wide {
    width: min(76rem, 100%);
}

.auth-aside,
.auth-card {
    position: relative;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-2xl);
    background:
        linear-gradient(180deg, rgba(19, 24, 32, 0.96), rgba(10, 14, 20, 0.96));
    box-shadow: var(--shadow-panel);
    overflow: hidden;
}

.auth-aside {
    padding: 1.6rem;
}

.auth-aside::before,
.auth-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top right, rgba(var(--accent-rgb), 0.18), transparent 32%),
        radial-gradient(circle at bottom left, rgba(135, 208, 255, 0.1), transparent 30%);
    pointer-events: none;
}

.auth-brand,
.auth-card-inner {
    position: relative;
    z-index: 1;
}

.auth-brand {
    display: grid;
    gap: 1rem;
}

.auth-brand-top {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
}

.auth-brand-mark {
    display: inline-grid;
    place-items: center;
    width: 3.2rem;
    height: 3.2rem;
    border-radius: 1.1rem;
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.18), rgba(var(--accent-rgb), 0.34));
    color: #fff;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.auth-brand-copy h1 {
    margin: 0;
    font-size: clamp(1.7rem, 3vw, 2.2rem);
    line-height: 1;
}

.auth-brand-copy p {
    margin: 0.25rem 0 0;
    color: var(--text-2);
    font-size: 0.94rem;
}

.auth-kicker {
    margin: 0;
    color: var(--accent-cool);
    font-size: 0.73rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.auth-brand-text {
    margin: 0;
    color: var(--text-2);
    font-size: 0.98rem;
    line-height: 1.7;
}

.auth-points {
    display: grid;
    gap: 0.7rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.auth-points li {
    display: flex;
    align-items: flex-start;
    gap: 0.7rem;
    color: var(--text-2);
}

.auth-points li::before {
    content: "";
    width: 0.55rem;
    height: 0.55rem;
    margin-top: 0.45rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    flex-shrink: 0;
}

.auth-side-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: 0.2rem;
    color: var(--text-1);
    font-weight: 700;
}

.auth-card {
    padding: 1.85rem;
}

.auth-card-inner {
    display: grid;
    gap: 1.2rem;
}

.auth-card-header {
    display: grid;
    gap: 0.5rem;
}

.auth-card-header h2 {
    margin: 0;
    font-size: clamp(1.7rem, 2.3vw, 2.15rem);
}

.auth-card-header p {
    margin: 0;
    color: var(--text-2);
    line-height: 1.6;
}

.auth-form {
    display: grid;
    gap: 0.95rem;
}

.auth-field {
    display: grid;
    gap: 0.45rem;
}

.auth-field label {
    color: var(--text-1);
    font-size: 0.88rem;
    font-weight: 700;
}

.auth-field input {
    min-height: 3.1rem;
}

.auth-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.auth-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.9rem;
    flex-wrap: wrap;
}

.auth-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-2);
    font-size: 0.92rem;
}

.auth-checkbox input {
    width: 1rem;
    height: 1rem;
    margin: 0;
}

.auth-submit {
    width: 100%;
    min-height: 3.15rem;
}

.auth-secondary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    flex-wrap: wrap;
    color: var(--text-2);
    font-size: 0.92rem;
}

.auth-secondary a {
    font-weight: 700;
}

.auth-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-soft), transparent);
}

.auth-note {
    padding: 0.95rem 1rem;
    border-radius: 1rem;
    font-size: 0.9rem;
}

.auth-note-success {
    border: 1px solid rgba(48, 199, 146, 0.28);
    background: rgba(19, 62, 48, 0.55);
    color: #c7f2e2;
}

.auth-stat-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.auth-stat-card {
    display: grid;
    gap: 0.35rem;
    padding: 1rem 1.05rem;
    border: 1px solid var(--border-soft);
    border-radius: 1.15rem;
    background: rgba(255, 255, 255, 0.035);
}

.auth-stat-card strong {
    color: var(--text-1);
    font-size: 0.98rem;
    line-height: 1.45;
}

.auth-stat-label {
    color: var(--text-3);
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.auth-user-id {
    font-family: 'Cascadia Code', 'Consolas', monospace;
    font-size: 0.84rem !important;
    word-break: break-all;
}

.auth-summary,
.validation-summary-errors {
    padding: 0.95rem 1rem;
    border: 1px solid rgba(255, 102, 112, 0.28);
    border-radius: 1rem;
    background: rgba(77, 18, 23, 0.5);
    color: #ffd7db;
    font-size: 0.9rem;
}

.validation-summary-errors ul {
    margin: 0.4rem 0 0;
    padding-left: 1rem;
}

.validation-summary-valid,
.field-validation-valid {
    display: none;
}

.field-validation-error {
    color: #ffb4bc;
    font-size: 0.82rem;
}

.input-validation-error {
    border-color: rgba(255, 102, 112, 0.45) !important;
    box-shadow: 0 0 0 4px rgba(255, 102, 112, 0.12) !important;
}

@media (max-width: 960px) {
    .auth-panel {
        grid-template-columns: 1fr;
    }

    .auth-aside,
    .auth-card {
        padding: 1.35rem;
    }
}

@media (max-width: 640px) {
    .auth-shell {
        padding: 0.8rem;
    }

    .auth-grid {
        grid-template-columns: 1fr;
    }

    .auth-stat-grid {
        grid-template-columns: 1fr;
    }

    .auth-card,
    .auth-aside {
        border-radius: 1.5rem;
    }

    .auth-card-header h2 {
        font-size: 1.55rem;
    }
}