.auth-body {
    position: relative;
    min-height: 100dvh;
    background: radial-gradient(1200px 600px at 15% -10%, #0d3a2c 0%, transparent 55%),
                radial-gradient(1000px 700px at 110% 10%, #10241f 0%, transparent 50%),
                linear-gradient(165deg, #070b10 0%, #0b1117 55%, #070b10 100%);
    padding: clamp(1.5rem, 5vh, 3rem) 1rem 3rem;
    overflow-x: hidden;
    overflow-y: auto;
}

.auth-aurora {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(420px 420px at 80% 90%, rgba(16, 185, 129, 0.18) 0%, transparent 60%),
                radial-gradient(360px 360px at 10% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 60%);
}

.auth-shell {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
}

.auth-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    color: #f1f5fb;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 1.75rem;
}
.auth-brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 0.65rem;
    background: linear-gradient(145deg, #10b981, #059669);
    color: #04130d;
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.3);
}
.auth-brand:hover { color: #fff; }

.auth-card {
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 1.25rem;
    padding: 2.25rem;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5);
}

.auth-title {
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #0f1b2d;
    margin: 0 0 0.35rem;
}

.auth-subtitle {
    color: #64748b;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.auth-form { display: flex; flex-direction: column; gap: 1rem; }
.auth-form .label { color: #475569; }

.auth-check { display: flex; align-items: center; gap: 0.5rem; font-size: 0.875rem; color: #475569; }
.auth-check input { width: 1rem; height: 1rem; accent-color: #059669; }

.auth-footer {
    text-align: center;
    margin: 1.5rem 0 0;
    font-size: 0.9rem;
    color: #64748b;
}
.auth-footer a { color: #059669; font-weight: 600; }
.auth-footer a:hover { text-decoration: underline; }

.auth-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    border-radius: 0.6rem;
    padding: 0.55rem 0.8rem;
    font-size: 0.85rem;
}