/* Auth pages: login / register (monochrome editorial shell) */

.nn-auth-page {
    --nn-auth-display-font: "Instrument Sans", Inter, system-ui, sans-serif;
    --nn-auth-hero-w: min(42vw, 28rem);
    --nn-auth-panel-max: 26rem;
    --nn-auth-pad: clamp(1.25rem, 4vw, 2.5rem);
}

.nn-auth-page .nn-auth-header {
    position: relative;
    z-index: 2;
    background: color-mix(in srgb, var(--nn-surface) 88%, transparent);
    backdrop-filter: blur(10px);
    border-color: var(--nn-border) !important;
}

.nn-auth-page .nn-auth-header .container-fluid {
    max-width: 72rem;
    padding-inline: var(--nn-auth-pad);
}

.nn-auth-page .nn-auth-nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nn-auth-page .nn-auth-nav-link {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--nn-muted);
    text-decoration: none;
    padding: 0.4rem 0.75rem;
    border-radius: var(--nn-radius);
    border: 1px solid transparent;
    transition:
        color var(--nn-transition),
        border-color var(--nn-transition),
        background var(--nn-transition);
}

.nn-auth-page .nn-auth-nav-link:hover {
    color: var(--nn-hover-fg);
    border-color: var(--nn-border);
    background: var(--nn-hover-bg);
}

.nn-auth-page .nn-auth-nav-link--primary {
    color: var(--nn-accent-fg);
    background: var(--nn-accent-bg);
    border-color: var(--nn-accent-border);
}

.nn-auth-page .nn-auth-nav-link--primary:hover {
    color: var(--nn-accent-hover-fg);
    background: var(--nn-accent-hover-bg);
    border-color: var(--nn-accent-border);
}

.nn-auth-main {
    position: relative;
    flex: 1;
    display: flex;
    align-items: stretch;
    padding: 0;
    overflow: hidden;
}

.nn-auth-main::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.35;
    background-image:
        linear-gradient(var(--nn-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--nn-border) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 80% 70% at 30% 40%, #000 20%, transparent 75%);
}

.nn-auth-main::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(ellipse 55% 45% at 12% 88%, var(--nn-hover-bg), transparent 65%);
}

.nn-auth-shell {
    position: relative;
    z-index: 1;
    display: grid;
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    min-height: calc(100vh - 3.5rem);
    grid-template-columns: 1fr;
}

.nn-auth-shell--single {
    max-width: 32rem;
    padding: var(--nn-auth-pad);
}

@media (min-width: 900px) {
    .nn-auth-shell {
        grid-template-columns: var(--nn-auth-hero-w) 1fr;
        align-items: center;
        gap: clamp(1.5rem, 4vw, 3rem);
        padding: var(--nn-auth-pad);
    }
}

.nn-auth-hero {
    display: none;
    flex-direction: column;
    justify-content: center;
    padding: var(--nn-auth-pad);
    animation: nnAuthReveal 0.7s ease-out both;
}

@media (min-width: 900px) {
    .nn-auth-hero {
        display: flex;
        padding: 0;
        padding-right: 0.5rem;
    }
}

@keyframes nnAuthReveal {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nn-auth-hero-kicker {
    font-family: var(--nn-font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--nn-muted-2);
    margin-bottom: 0.75rem;
}

.nn-auth-hero-title {
    font-family: var(--nn-auth-display-font);
    font-size: clamp(1.75rem, 3.2vw, 2.35rem);
    font-weight: 600;
    line-height: 1.12;
    letter-spacing: -0.03em;
    color: var(--nn-text);
    margin: 0 0 1rem;
    max-width: 14ch;
}

.nn-auth-hero-lead {
    font-size: 0.9375rem;
    line-height: 1.55;
    color: var(--nn-muted);
    margin: 0;
    max-width: 28ch;
}

.nn-auth-panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--nn-auth-pad);
    animation: nnAuthReveal 0.7s ease-out 0.08s both;
}

@media (min-width: 900px) {
    .nn-auth-panel {
        padding: 2rem 0;
        padding-left: clamp(0.5rem, 2vw, 2rem);
    }
}

.nn-auth-panel-inner {
    width: 100%;
    max-width: var(--nn-auth-panel-max);
    margin-inline: auto;
}

.nn-auth-mobile-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}

@media (min-width: 900px) {
    .nn-auth-mobile-brand {
        display: none;
    }
}

.nn-auth-mobile-brand .nn-brand-logo {
    width: 36px;
    height: 36px;
}

.nn-auth-mobile-brand span {
    font-family: var(--nn-auth-display-font);
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--nn-text);
}

.nn-auth-heading {
    margin: 0 0 0.35rem;
    font-family: var(--nn-auth-display-font);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--nn-text);
}

.nn-auth-sub {
    margin: 0 0 1.5rem;
    font-size: 0.875rem;
    color: var(--nn-muted);
    line-height: 1.45;
}

.nn-auth-card {
    background: var(--nn-surface);
    border: 1px solid var(--nn-border);
    border-radius: calc(var(--nn-radius) + 2px);
    padding: 1.5rem 1.35rem 1.35rem;
    box-shadow: 0 1px 0 color-mix(in srgb, var(--nn-text) 6%, transparent);
}

.nn-auth-card .form-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--nn-muted-2);
    margin-bottom: 0.35rem;
}

.nn-auth-card .nn-input {
    min-height: 2.75rem;
    border-radius: var(--nn-radius);
}

.nn-auth-card .nn-input:focus {
    border-color: var(--nn-input-focus-border);
    box-shadow: 0 0 0 3px var(--nn-input-focus-shadow);
}

.nn-auth-submit {
    margin-top: 0.25rem;
    min-height: 2.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.nn-auth-footer-note {
    margin: 1.25rem 0 0;
    font-size: 0.8125rem;
    color: var(--nn-muted);
    text-align: center;
}

.nn-auth-footer-note a {
    color: var(--nn-link);
    font-weight: 500;
    text-decoration: none;
    border-bottom: 1px solid color-mix(in srgb, var(--nn-link) 35%, transparent);
}

.nn-auth-footer-note a:hover {
    border-bottom-color: var(--nn-link);
}

.nn-auth-register-cta {
    display: block;
    text-align: center;
    text-decoration: none;
    margin-bottom: 1.25rem;
    padding: 0.85rem 1rem;
    border: 1px dashed var(--nn-border);
    border-radius: var(--nn-radius);
    color: var(--nn-muted);
    font-size: 0.8125rem;
    transition:
        border-color var(--nn-transition),
        color var(--nn-transition),
        background var(--nn-transition);
}

.nn-auth-register-cta:hover {
    color: var(--nn-hover-fg);
    border-color: var(--nn-border-hover);
    background: var(--nn-hover-bg);
}

.nn-auth-register-cta strong {
    display: block;
    color: var(--nn-text);
    font-weight: 600;
    font-size: 0.9375rem;
    margin-bottom: 0.15rem;
}

.nn-pre-dberr {
    font-family: var(--nn-font-mono);
    font-size: 0.7rem;
    white-space: pre-wrap;
    word-break: break-word;
}