:root {
    --ink: #0c1218;
    --ink-deep: #0a0f14;
    --panel: #161e28;
    --panel-raised: #1c2632;
    --line: #2c3a4a;
    --bone: #e8e2d6;
    --muted: #9aa6b2;
    --copper: #c4a574;
    --copper-hover: #d4b78a;
    --copper-ink: #1a140c;
}

::selection {
    background: rgba(196, 165, 116, 0.35);
    color: var(--bone);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--ink);
    color: var(--bone);
    font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
    font-size: 1.0625rem;
    line-height: 1.55;
}

h1, h2, h3, p {
    color: inherit;
}

a {
    color: inherit;
}

.skip-link {
    position: absolute;
    left: 1rem;
    top: -3rem;
    z-index: 100;
    background: var(--copper);
    color: var(--copper-ink);
    padding: 0.5rem 0.75rem;
    text-decoration: none;
}

.skip-link:focus {
    top: 0.5rem;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--copper);
    outline-offset: 3px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(12, 18, 24, 0.94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
}

.site-header::before {
    content: "";
    display: block;
    height: 2px;
    background: var(--copper);
}

.site-header.is-scrolled {
    border-bottom-color: var(--line);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--bone);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.92rem;
}

.brand-logo {
    display: block;
    width: auto;
    height: 44px;
}

.site-nav .nav-link {
    color: var(--muted);
    font-size: 0.95rem;
}

.site-nav .nav-link:hover,
.site-nav .nav-link:focus,
.site-nav .nav-link.active {
    color: var(--bone);
}

.navbar-toggler {
    border-color: var(--line);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23e8e2d6' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.dropdown-menu {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 0.35rem;
    min-width: 16.5rem;
}

.dropdown-item {
    color: var(--bone);
    border-radius: 2px;
    font-size: 0.92rem;
    padding: 0.45rem 0.7rem;
}

.dropdown-item:hover,
.dropdown-item:focus,
.dropdown-item.active,
.dropdown-item:active {
    background: var(--panel-raised);
    color: var(--bone);
}

.btn-primary-action,
.btn-secondary-action,
.btn-text-action,
.btn-board {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.65rem 1.05rem;
    border-radius: 2px;
    text-decoration: none;
    font-weight: 500;
    line-height: 1.2;
}

.btn-primary-action {
    background: var(--copper);
    color: var(--copper-ink);
    border: 1px solid var(--copper);
}

.btn-primary-action:hover {
    background: var(--copper-hover);
    color: var(--copper-ink);
}

.btn-secondary-action {
    background: transparent;
    color: var(--bone);
    border: 1px solid rgba(232, 226, 214, 0.4);
}

.btn-secondary-action:hover {
    border-color: var(--bone);
    color: var(--bone);
    background: rgba(232, 226, 214, 0.06);
}

.btn-text-action {
    background: transparent;
    color: var(--copper);
    border: 0;
    padding-left: 0.35rem;
    padding-right: 0.35rem;
}

.btn-text-action:hover {
    color: var(--bone);
}

.btn-small {
    min-height: 40px;
    padding: 0.4rem 0.75rem;
    font-size: 0.84rem;
}

.hero {
    padding: 4.75rem 0 4.25rem;
    background:
        radial-gradient(920px 420px at 85% 0%, rgba(196, 165, 116, 0.09), transparent 62%),
        var(--ink);
}

.page-hero {
    padding: 4.25rem 0 0.25rem;
}

.hero-logo {
    display: block;
    width: min(100%, 340px);
    height: auto;
    margin: 0 0 1.15rem;
}

.hero h1,
.page-hero h1 {
    margin: 0 0 1rem;
    font-size: clamp(2.45rem, 5vw, 4.1rem);
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.02;
}

.hero h1 {
    max-width: 10em;
}

.page-hero h1 {
    max-width: 14em;
}

.hero-position {
    max-width: 36rem;
    margin: 0 0 0.85rem;
    color: var(--bone);
    font-size: 1.28rem;
    line-height: 1.4;
}

.hero-summary,
.section-intro {
    max-width: 40rem;
    margin: 0;
    color: var(--muted);
    font-size: 1.05rem;
    line-height: 1.65;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.section-pad {
    padding: 4.75rem 0;
}

.section-contrast {
    background: #10161d;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.section-kicker {
    margin: 0 0 0.7rem;
    color: var(--copper);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.section-title {
    max-width: 16em;
    margin: 0 0 0.8rem;
    font-size: clamp(1.85rem, 3vw, 2.55rem);
    font-weight: 500;
    letter-spacing: -0.025em;
    line-height: 1.1;
}

.difference-list {
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: difference;
}

.difference-list li {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    padding: 0.95rem 0;
    border-bottom: 1px solid var(--line);
    font-size: clamp(1.28rem, 2vw, 1.7rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.difference-list li {
    counter-increment: difference;
}

.difference-list li::before {
    content: counter(difference, decimal-leading-zero);
    color: var(--copper);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.06em;
}

.environment-grid,
.audience-strip {
    display: grid;
    gap: 1px;
    margin: 2rem 0 0;
    padding: 0;
    list-style: none;
    background: var(--line);
    border: 1px solid var(--line);
}

.environment-grid {
    grid-template-columns: 1fr;
}

.environment-card,
.audience-strip a {
    display: block;
    height: 100%;
    background: var(--panel);
    padding: 1.3rem 1.15rem 1.45rem;
    text-decoration: none;
}

.environment-card h3,
.audience-strip strong {
    margin: 0 0 0.55rem;
    font-size: 1.08rem;
    font-weight: 500;
}

.environment-card p,
.audience-strip p {
    margin: 0;
    color: var(--muted);
    font-size: 0.98rem;
}

.examples-label,
.audience-strip span {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--copper);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.environment-card:hover,
.audience-strip a:hover {
    background: var(--panel-raised);
}

.range-note,
.case-note {
    max-width: 48rem;
    margin: 1.25rem 0 0;
    color: var(--muted);
    font-size: 0.98rem;
}

.case-note a {
    color: var(--copper);
}

.stage-list {
    margin: 1.75rem 0 0;
    padding: 0;
    list-style: none;
}

.stage-list li {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 1rem;
    row-gap: 0.2rem;
    padding: 1.1rem 0;
    border-top: 1px solid var(--line);
}

.stage-number {
    grid-row: 1 / span 2;
    color: var(--copper);
    font-size: 1.2rem;
    font-weight: 500;
}

.stage-list h3 {
    margin: 0;
    font-size: 1.12rem;
    font-weight: 500;
}

.stage-list p {
    margin: 0;
    color: var(--muted);
}

.capability-list {
    display: grid;
    grid-template-columns: 1fr;
    margin: 1.4rem 0 0;
    padding: 0;
    list-style: none;
}

.capability-list li {
    padding: 1rem 0 1.1rem;
    border-top: 1px solid var(--line);
}

.capability-list h3 {
    margin: 0 0 0.3rem;
    font-size: 1.05rem;
    font-weight: 500;
}

.capability-list p {
    margin: 0;
    color: var(--muted);
}

.investigation-board {
    background: var(--panel);
    border: 1px solid var(--line);
    border-top: 2px solid var(--copper);
    padding: 1.3rem 1.3rem 1.1rem;
}

.board-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.board-status,
.board-live,
.board-note,
.metric dt,
.metric dd {
    font-family: "IBM Plex Mono", ui-monospace, monospace;
}

.board-status,
.board-live {
    margin: 0;
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.board-status {
    color: var(--muted);
}

.board-live {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--copper);
}

.live-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: var(--copper);
    box-shadow: 0 0 0 0 rgba(196, 165, 116, 0.5);
    animation: live-pulse 2.6s ease-out infinite;
}

.board-operation {
    margin: 1rem 0 0.35rem;
    font-size: 1.7rem;
    font-weight: 500;
    letter-spacing: -0.02em;
}

.board-metrics {
    margin: 0.85rem 0 0;
}

.metric {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.72rem 0;
    border-top: 1px solid var(--line);
}

.metric dt {
    margin: 0;
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.metric dd {
    margin: 0;
    color: var(--bone);
    font-size: 1.02rem;
    text-align: right;
}

.metric dd.is-judgment {
    color: var(--copper);
}

.btn-board {
    width: 100%;
    margin-top: 1rem;
    background: transparent;
    color: var(--bone);
    border: 1px solid var(--copper);
    font-size: 0.78rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.btn-board:hover {
    background: var(--copper);
    color: var(--copper-ink);
}

.board-note {
    margin: 0.75rem 0 0;
    color: var(--muted);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-align: center;
    text-transform: uppercase;
}

.closing-cta {
    border-top: 1px solid var(--line);
}

.site-footer {
    padding: 3.5rem 0 1.5rem;
    background: var(--ink-deep);
    border-top: 1px solid var(--line);
}

.footer-logo {
    display: block;
    width: min(100%, 210px);
    height: auto;
    margin: 0 0 0.9rem;
}

.footer-summary,
.footer-bottom,
.footer-links a {
    color: var(--muted);
}

.footer-heading {
    margin-bottom: 0.7rem;
    color: var(--copper);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.footer-links {
    margin: 0;
    padding: 0;
    list-style: none;
}

.footer-links a {
    display: inline-block;
    padding: 0.18rem 0;
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--bone);
}

.footer-links-columns {
    columns: 2;
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 1.5rem;
    margin-top: 2.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--line);
    font-size: 0.92rem;
}

.footer-bottom p {
    margin: 0;
}

@media (min-width: 700px) {
    .environment-grid,
    .audience-strip {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 800px) {
    .capability-list {
        grid-template-columns: 1fr 1fr;
        column-gap: 2.5rem;
    }
}

@media (min-width: 992px) {
    .nav-cta {
        margin-left: 0.35rem;
    }

    .site-nav .dropdown-menu {
        margin-top: 0.45rem;
    }
}

@media (min-width: 1100px) {
    .environment-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .audience-strip {
        grid-template-columns: repeat(3, 1fr);
    }

    .stage-list {
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 1.25rem;
    }

    .stage-list li {
        display: block;
        padding: 0 0 0 0.9rem;
        border-top: 0;
        border-left: 1px solid var(--line);
    }

    .stage-number {
        display: block;
        margin-bottom: 0.55rem;
    }

    .stage-list h3 {
        margin-bottom: 0.4rem;
    }
}

@media (max-width: 991.98px) {
    .site-nav .dropdown-menu {
        position: static;
        float: none;
        background: transparent;
        border: 0;
        box-shadow: none;
        padding: 0.15rem 0 0.15rem 0.75rem;
    }

    .nav-cta {
        margin-top: 0.45rem;
    }

    .nav-cta .btn-primary-action,
    .nav-cta .btn-secondary-action {
        width: 100%;
    }
}

@media (max-width: 699.98px) {
    .hero,
    .page-hero {
        padding-top: 2.75rem;
    }

    .section-pad {
        padding: 3.25rem 0;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions a {
        width: 100%;
    }
}

.nav-logout {
    margin: 0;
}

button.nav-link {
    background: transparent;
    border: 0;
    cursor: pointer;
}

.flash-wrap {
    padding-top: 1rem;
}

.flash {
    margin: 0 0 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--panel);
    border: 1px solid var(--line);
}

.auth-card {
    max-width: 36rem;
}

.auth-card .field-label,
.auth-card legend.field-label {
    display: block;
    margin: 0.85rem 0 0.35rem;
    color: var(--muted);
    font-size: 0.92rem;
}

.auth-card .form-control {
    margin-bottom: 0.35rem;
    background: var(--panel);
    color: var(--bone);
    border: 1px solid var(--line);
    border-radius: 2px;
}

.auth-card .form-control:focus {
    background: var(--panel);
    color: var(--bone);
    border-color: var(--copper);
    box-shadow: none;
}

.auth-card .btn-primary-action,
.auth-card .btn-secondary-action {
    margin-top: 1rem;
}

.form-error {
    color: #e0a090;
    margin: 0.25rem 0 0.5rem;
}

.auth-links {
    margin-top: 1.25rem;
}

.auth-links a {
    color: var(--copper);
}

.interval-choice {
    border: 0;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.25rem;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .live-dot {
        animation: none;
    }
}

@keyframes live-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(196, 165, 116, 0.45);
    }

    70% {
        box-shadow: 0 0 0 8px rgba(196, 165, 116, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(196, 165, 116, 0);
    }
}