.auth-main {
    min-height: calc(100vh - 120px);
    display: grid; place-items: center;
    padding: 60px 24px;
}
.auth-card {
    width: 100%; max-width: 420px;
    padding: 40px 36px;
    border-radius: var(--radius-lg);
    background:
        radial-gradient(ellipse at top, rgba(139,109,255,0.2), transparent 70%),
        linear-gradient(180deg, rgba(26,23,52,0.8), rgba(12,10,23,0.95));
    border: 1px solid rgba(139,109,255,0.25);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    animation: authIn 0.6s var(--ease-apple);
}
@keyframes authIn {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to   { opacity: 1; transform: none; }
}

.auth-title {
    font-size: 28px; font-weight: 700; letter-spacing: -0.03em; margin-bottom: 6px;
    background: linear-gradient(135deg, #fff, #c4a8ff);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.auth-sub { color: var(--fg-dim); font-size: 14px; margin-bottom: 28px; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field > span {
    font-size: 12px; letter-spacing: 0.04em; color: var(--fg-dim);
    font-weight: 600; text-transform: uppercase;
}
.field input, .field select, .field textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    color: var(--fg);
    font-size: 15px; font-family: inherit;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
    outline: none;
}
.field input:focus, .field select:focus, .field textarea:focus {
    border-color: var(--accent);
    background: rgba(139,109,255,0.08);
    box-shadow: 0 0 0 3px rgba(139,109,255,0.18);
}
.field input::placeholder { color: var(--muted); }

.btn.loading .btn-label { opacity: 0; }
.btn .spinner {
    position: absolute;
    width: 18px; height: 18px; border-radius: 50%;
    border: 2px solid rgba(16,8,31,0.25);
    border-top-color: #10081f;
    opacity: 0;
    animation: spin 0.8s linear infinite;
}
.btn.loading .spinner { opacity: 1; }
@keyframes spin { to { transform: rotate(360deg); } }

.auth-msg {
    margin-top: 14px; min-height: 20px;
    font-size: 13px; color: var(--fg-dim);
    padding: 0 2px;
}
.auth-msg.ok  { color: var(--ok); }
.auth-msg.err { color: var(--danger); }

.auth-foot {
    margin-top: 24px; text-align: center;
    font-size: 13px; color: var(--fg-dim);
}
.auth-foot a { color: var(--accent-2); border-bottom: 1px dashed var(--accent); }
.auth-foot a:hover { color: #fff; }