.settings-page {
    padding: 3rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    animation: fadeIn 0.6s ease-out;
}

.settings-page > h1 {
    font-family: var(--nexus-font-serif);
    font-size: 2.8rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    background: linear-gradient(135deg, var(--nexus-text) 0%, rgba(255, 255, 255, 0.7) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.settings-page > p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 3rem;
}

.settings-section {
    padding: 2rem;
    margin-top: 1.5rem;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.settings-section h2 {
    font-family: var(--nexus-font-sans);
    font-size: 1.35rem;
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 0.75rem 0;
}

.settings-section p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.95rem;
    margin: 0 0 1.5rem 0;
    line-height: 1.5;
}

.diag-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 255, 153, 0.05);
    color: var(--nexus-neon);
    border: 1px solid rgba(0, 255, 153, 0.2);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 0 transparent;
}

.diag-btn:hover {
    background: var(--nexus-neon);
    color: #000000;
    border-color: var(--nexus-neon);
    box-shadow: 0 0 15px var(--nexus-primary-glow);
    transform: translateY(-2px);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
   ============================================================ */

.theme-light .settings-page > h1 {
    background: none;
    -webkit-text-fill-color: initial;
    color: var(--text-main);
}

.theme-light .settings-page > p {
    color: var(--text-muted);
}

.theme-light .settings-section h2 {
    color: var(--text-main);
}

.theme-light .settings-section p {
    color: var(--text-muted);
}

.theme-light .diag-btn {
    background: rgba(16, 185, 129, 0.05);
    color: var(--accent);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.theme-light .diag-btn:hover {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
    transform: translateY(-2px);
}