:root {
    --black: #0a0a0a;
    --dark: #111111;
    --card: #151515;
    --card-hover: #1a1a1a;
    --border: #222222;
    --border-light: #2a2a2a;
    --text: #c8c8c8;
    --text-dim: #777777;
    --accent: #d4a843;
    --accent-dim: rgba(212,168,67,0.10);
    --accent-border: rgba(212,168,67,0.25);
    --white: #f0ece4;
    --green: #2ecc71;
    --sidebar-w: 240px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--black);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.7;
    font-size: 16px;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 6px; }

/* ── TOP BAR ── */
.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    height: 44px;
    background: var(--dark);
    border-bottom: 1px solid var(--border);
    font-size: 0.75rem;
}
.topbar-inner {
    max-width: 1440px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
}
.topbar-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
.topbar-logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.2rem;
    letter-spacing: 0.12em;
    color: var(--white);
    text-decoration: none;
}
.topbar-logo span { color: var(--accent); }
.topbar-sep {
    width: 1px;
    height: 18px;
    background: var(--border);
}
.topbar-nav {
    display: flex;
    gap: 1.2rem;
    list-style: none;
}
.topbar-nav a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: all 0.2s;
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
}
.topbar-nav a:hover {
    background: var(--accent-dim);
    color: var(--white);
}
.topbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.topbar-status {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-dim);
    font-size: 0.65rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.status-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 4px rgba(46,204,113,0.4);
}

/* ── TOPBAR HAMBURGER (mobile) ── */
.topbar-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.35rem;
    flex-shrink: 0;
}
.topbar-hamburger span {
    display: block;
    width: 18px; height: 1.5px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.22s;
    transform-origin: center;
}
.topbar-hamburger.open span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.topbar-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.topbar-hamburger.open span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ── MOBILE NAV PANEL (content pages) ── */
.topbar-mobile-nav {
    display: none;
    position: fixed;
    top: 44px; left: 0; right: 0;
    background: rgba(10,10,10,0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1.5rem 1.25rem;
    z-index: 999;
    flex-direction: column;
    gap: 0.2rem;
}
.topbar-mobile-nav.open { display: flex; }
.topbar-mobile-nav a {
    color: var(--text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.75rem 0.8rem;
    border-radius: 6px;
    transition: all 0.2s;
    display: block;
}
.topbar-mobile-nav a:hover { background: var(--accent-dim); color: var(--white); }
.topbar-mobile-nav-cta {
    margin-top: 0.5rem;
    background: var(--accent);
    color: var(--black) !important;
    text-align: center;
    font-weight: 700 !important;
    border-radius: 6px;
    padding: 0.9rem 1rem !important;
    font-size: 0.9rem !important;
}
.topbar-mobile-nav-cta:hover { filter: brightness(1.1); background: var(--accent) !important; }

/* ── CLASSIFICATION BANNER ── */
.class-banner {
    margin-top: 44px;
    background: rgba(212,168,67,0.06);
    border-bottom: 1px solid var(--accent-border);
}
.class-banner-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0.4rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
}

/* ── LAYOUT ── */
.page-layout {
    display: flex;
    min-height: calc(100vh - 44px);
    margin-top: 0;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

/* ── SIDEBAR ── */
.sidebar {
    position: sticky;
    top: 44px;
    height: calc(100vh - 44px);
    width: var(--sidebar-w);
    flex-shrink: 0;
    align-self: flex-start;
    background: var(--dark);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    padding-top: 1.4rem;
    z-index: 100;
    display: flex;
    flex-direction: column;
}
.sidebar-section {
    padding: 0 1rem;
    margin-bottom: 1.26rem;
}
.sidebar-section + .sidebar-section {
    border-top: 1px solid var(--border);
    padding-top: 1.26rem;
}
.sidebar-label {
    font-size: 0.58rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 0.7rem;
    padding: 0 0.6rem;
}
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.6rem;
    font-size: 0.78rem;
    color: var(--text);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.15s;
    border-left: 2px solid transparent;
    margin-bottom: 1px;
}
.sidebar-link:hover { background: var(--accent-dim); color: var(--white); }
.sidebar-link.active {
    background: var(--accent-dim);
    color: var(--accent);
    border-left-color: var(--accent);
}
.sidebar-link .dot {
    width: 4px; height: 4px;
    border-radius: 50%;
    background: var(--text-dim);
    flex-shrink: 0;
}
.sidebar-link.active .dot { background: var(--accent); }
.sidebar-link:hover .dot { background: var(--white); }

.sidebar-map {
    padding: 1rem;
    border-top: 1px solid var(--border);
    margin-top: auto;
}
.sidebar-map svg { width: 100%; height: auto; opacity: 0.18; }
.sidebar-map-label {
    font-size: 0.55rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
    text-align: center;
    margin-top: 0.5rem;
}

/* ── MAIN CONTENT ── */
.main-content {
    padding: 1.4rem 2.1rem 2.8rem 0.75rem;
    max-width: 940px;
    width: 100%;
    margin: 0 auto;
    min-width: 0;
}

/* ── PAGE HEADER ── */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1.4rem;
    border-bottom: 1px solid var(--border);
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 1rem;
    font-size: 0.68rem;
    letter-spacing: 0.06em;
}
.breadcrumb a {
    color: var(--text-dim);
    text-decoration: none;
    transition: color 0.2s;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: var(--border-light); font-size: 0.6rem; }
.breadcrumb .current { color: var(--accent); }

.page-header h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2.4rem, 4.5vw, 3.2rem);
    color: var(--white);
    letter-spacing: 0.03em;
    line-height: 1.08;
    margin-bottom: 0.7rem;
}
.page-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.72rem;
    color: var(--text-dim);
}
.page-meta-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.meta-dot {
    width: 5px; height: 5px;
    border-radius: 50%;
    flex-shrink: 0;
}
.meta-dot.green { background: var(--green); }
.meta-dot.amber { background: var(--accent); }

/* ── PAGE IMAGE ── */
.page-image {
    width: 100%;
    max-height: 320px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 2rem;
    display: block;
}

/* ── CONTENT STYLES ── */
.content-section {
    margin-bottom: 2.8rem;
    scroll-margin-top: 60px;
}
.section-anchor { display: block; position: relative; top: -60px; visibility: hidden; }

.section-heading {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    color: var(--white);
    letter-spacing: 0.04em;
    margin-bottom: 1rem;
    padding-bottom: 0.55rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.section-heading .h-accent {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6rem;
    color: var(--accent);
    background: rgba(212,168,67,0.08);
    padding: 0.2rem 0.6rem;
    letter-spacing: 0.1em;
    border: 1px solid var(--accent-border);
    text-transform: uppercase;
    border-radius: 6px;
}

.prose {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.9;
    font-weight: 300;
}
.prose p + p { margin-top: 0.9rem; }
.prose strong { color: var(--white); font-weight: 600; }

/* ── INFO CALLOUT ── */
.callout {
    border: 1px solid var(--accent-border);
    border-left: 3px solid var(--accent);
    background: rgba(212,168,67,0.05);
    padding: 0.9rem 1.1rem;
    margin: 1.4rem 0;
    font-size: 0.88rem;
    line-height: 1.75;
    color: var(--text);
    border-radius: 6px;
}
.callout-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.4rem;
}

/* ── DATA TABLE ── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.4rem 0;
    font-size: 0.85rem;
}
.data-table th {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    text-align: left;
    padding: 0.7rem 1rem;
    background: rgba(212,168,67,0.06);
    border: 1px solid var(--accent-border);
    font-weight: 500;
}
.data-table td {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border);
    color: var(--text);
    vertical-align: top;
    line-height: 1.5;
}
.data-table tr:hover td { background: rgba(212,168,67,0.04); }
.data-table .code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    color: var(--accent);
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* ── TAG GRID ── */
.tag-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 1rem 0;
}
.tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    letter-spacing: 0.06em;
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--accent-border);
    color: var(--text);
    background: rgba(212,168,67,0.05);
    border-radius: 6px;
    transition: all 0.2s;
}
.tag:hover {
    border-color: var(--accent);
    color: var(--white);
    background: rgba(212,168,67,0.12);
}

/* ── STEP LIST ── */
.step-list {
    list-style: none;
    counter-reset: step;
    margin: 1.4rem 0;
}
.step-list li {
    counter-increment: step;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.7rem 0.77rem;
    border: 1px solid var(--border);
    border-bottom: none;
    background: var(--dark);
    transition: all 0.2s;
}
.step-list li:last-child { border-bottom: 1px solid var(--border); }
.step-list li:hover {
    background: rgba(212,168,67,0.04);
    border-color: var(--accent-border);
}
.step-list li:hover + li { border-top-color: var(--accent-border); }
.step-list li::before {
    content: counter(step, decimal-leading-zero);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    color: var(--accent);
    min-width: 24px;
    padding-top: 0.1rem;
    flex-shrink: 0;
}
.step-content h4 {
    font-size: 0.9rem;
    color: var(--white);
    font-weight: 600;
    margin-bottom: 0.25rem;
}
.step-content p {
    font-size: 0.82rem;
    color: var(--text-dim);
    line-height: 1.6;
}

/* ── RISK MATRIX ── */
.risk-matrix {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    margin: 1.4rem 0;
}
.risk-cell {
    background: var(--dark);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text);
    transition: all 0.15s;
}
.risk-cell:hover {
    background: rgba(212,168,67,0.05);
    color: var(--white);
}
.risk-cell::before {
    content: '◆';
    font-size: 0.45rem;
    color: var(--accent);
    flex-shrink: 0;
}

/* ── RELATED LINKS ── */
.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.55rem;
    margin: 1rem 0;
}
.related-link {
    background: linear-gradient(160deg, rgba(212,168,67,0.10) 0%, rgba(212,168,67,0.03) 100%);
    border: 1px solid var(--accent-border);
    border-radius: 6px;
    padding: 0.84rem 0.91rem;
    text-decoration: none;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}
.related-link::before {
    content: '';
    position: absolute;
    right: -15%;
    bottom: -25%;
    width: 75%;
    height: 140%;
    background-image: radial-gradient(circle, rgba(212,168,67,0.25) 1px, transparent 1px);
    background-size: 8px 8px;
    mask-image: radial-gradient(ellipse 60% 60% at 60% 55%, black, transparent);
    -webkit-mask-image: radial-gradient(ellipse 60% 60% at 60% 55%, black, transparent);
    opacity: 0.15;
    pointer-events: none;
    transition: opacity 0.4s;
}
.related-link:hover::before { opacity: 0.35; }
.related-link:hover {
    background: linear-gradient(160deg, rgba(212,168,67,0.18) 0%, rgba(212,168,67,0.06) 100%);
    border-color: var(--accent);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(212,168,67,0.08);
}
.related-link-icon {
    width: 36px; height: 36px;
    border: 1px solid var(--accent-border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 0.9rem;
    flex-shrink: 0;
    background: rgba(212,168,67,0.06);
    transition: all 0.2s;
    position: relative;
    z-index: 1;
}
.related-link:hover .related-link-icon {
    background: rgba(212,168,67,0.15);
    border-color: var(--accent);
}
.related-link-text {
    position: relative;
    z-index: 1;
}
.related-link-text h4 {
    font-size: 0.88rem;
    color: var(--white);
    font-weight: 600;
    margin-bottom: 0.15rem;
}
.related-link-text p {
    font-size: 0.68rem;
    color: var(--text-dim);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

/* ── INLINE CONTACT FORM ── */
.inline-contact {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1.75rem;
    margin: 1.4rem 0;
}
.inline-contact h3 {
    font-size: 1.1rem;
    color: var(--white);
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.inline-contact > p {
    font-size: 0.88rem;
    color: var(--text-dim);
    margin-bottom: 1.26rem;
    line-height: 1.6;
}
.inline-contact-form {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.9rem;
}
.inline-contact-form input,
.inline-contact-form textarea {
    background: var(--black);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.85rem 1rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.92rem;
    color: var(--white);
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
}
.inline-contact-form input:focus,
.inline-contact-form textarea:focus { border-color: var(--accent); }
.inline-contact-form input::placeholder,
.inline-contact-form textarea::placeholder { color: var(--text-dim); }
.inline-contact-form textarea { min-height: 130px; resize: vertical; }
.form-submit {
    align-self: stretch;
    background: var(--accent);
    color: var(--black);
    border: none;
    border-radius: 6px;
    padding: 1rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
}
.form-submit:hover { filter: brightness(1.12); }

/* ── FOOTER BAR ── */
.footer-bar {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 3rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.68rem;
    color: var(--text-dim);
}
.footer-bar a {
    color: var(--text-dim);
    text-decoration: none;
    transition: color 0.2s;
}
.footer-bar a:hover { color: var(--accent); }
.footer-links { display: flex; gap: 1.5rem; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
    .sidebar { display: none; }
    .main-content { max-width: none; }
    .footer-bar { padding: 1.5rem 5vw; }
    .risk-matrix { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .topbar-nav, .topbar-sep { display: none; }
    .topbar-hamburger { display: flex; }
    .topbar-status { font-size: 0; gap: 0; }
    .status-dot { width: 8px; height: 8px; }
    .related-grid { grid-template-columns: 1fr; }
    .data-table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .main-content { padding: 2rem 5vw 3rem; }
    .page-header { margin-bottom: 2.5rem; }
    .content-section { margin-bottom: 3rem; }
    .inline-contact { padding: 1.8rem; }
    .footer-bar { flex-direction: column; gap: 0.75rem; text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; gap: 1rem; }
}
@media (max-width: 480px) {
    .topbar-inner { padding: 0 1rem; }
    .main-content { padding: 1.75rem 5vw 2.5rem; }
    .inline-contact { padding: 1.4rem; }
    .form-row { grid-template-columns: 1fr; }
    .risk-matrix { grid-template-columns: 1fr; }
    .class-banner-inner { flex-direction: column; gap: 0.2rem; align-items: flex-start; }
}