@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;700;800&family=Space+Grotesk:wght@500;600;700&display=swap");

:root {
    --quant-deep-space: #05070A;
    --quant-console: #0A0F1A;
    --quant-panel: rgba(10, 15, 26, 0.84);
    --quant-panel-solid: #0D1320;
    --quant-line: rgba(255, 255, 255, 0.09);
    --quant-line-strong: rgba(47, 128, 237, 0.28);
    --quant-research-blue: #2F80ED;
    --quant-signal-cyan: #18D2C0;
    --quant-factor-gold: #D6A94A;
    --quant-risk-red: #E84A5F;
    --quant-paper-white: #F4F1E8;
    --quant-neutral-gray: #8A93A3;
    --quant-radius: 8px;
}

html {
    background: var(--quant-deep-space);
}

body {
    font-family: "IBM Plex Sans", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
    background:
        radial-gradient(circle at 18% 8%, rgba(47, 128, 237, 0.12), transparent 30vw),
        radial-gradient(circle at 84% 20%, rgba(24, 210, 192, 0.08), transparent 26vw),
        linear-gradient(180deg, #05070A 0%, #070B12 48%, #05070A 100%) !important;
    color: var(--quant-paper-white) !important;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(circle at 50% 25%, #000 0%, transparent 72%);
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.38;
    background: repeating-linear-gradient(
        to bottom,
        rgba(255,255,255,0.02) 0,
        rgba(255,255,255,0.02) 1px,
        transparent 1px,
        transparent 5px
    );
}

h1, h2, h3, h4, h5, h6,
.hero h1,
.section-title,
.sidebar-header h1 {
    font-family: "Space Grotesk", "Noto Sans SC", sans-serif !important;
    letter-spacing: 0 !important;
}

.mono,
.stat-val,
.stat-value,
.stat-lbl,
.tag-pill,
.tag-chip,
kbd {
    font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace !important;
}

a {
    color: inherit;
}

::selection {
    background: rgba(24, 210, 192, 0.28);
    color: var(--quant-paper-white);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #05070A;
}

::-webkit-scrollbar-thumb {
    background: #253244;
    border-radius: 8px;
}

/* Shared top navigation */
.navbar {
    height: 58px !important;
    background: rgba(5, 7, 10, 0.78) !important;
    border-bottom: 1px solid var(--quant-line) !important;
    backdrop-filter: blur(18px) saturate(140%) !important;
    -webkit-backdrop-filter: blur(18px) saturate(140%) !important;
}

.nav-content {
    max-width: 1440px !important;
}

.logo {
    color: var(--quant-paper-white) !important;
    font-family: "Space Grotesk", "Noto Sans SC", sans-serif !important;
}

.nav-tab {
    border-radius: var(--quant-radius) !important;
    color: var(--quant-neutral-gray) !important;
}

.nav-tab:hover,
.nav-tab.active {
    background: rgba(47, 128, 237, 0.12) !important;
    color: var(--quant-paper-white) !important;
}

.nav-tab.active::after {
    background: var(--quant-signal-cyan) !important;
}

.icon-btn {
    color: var(--quant-neutral-gray) !important;
}

/* Home page */
.hero {
    position: relative !important;
    min-height: 92vh;
    max-width: none !important;
    padding: 150px 24px 96px !important;
    overflow: hidden;
    isolation: isolate;
}

.q-bg-video,
.q-page-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

.q-bg-video {
    z-index: -4;
    opacity: 0.34;
}

.q-hero-scrim {
    position: absolute;
    inset: 0;
    z-index: -3;
    pointer-events: none;
    background:
        radial-gradient(circle at 50% 36%, rgba(47, 128, 237, 0.22), transparent 32%),
        radial-gradient(circle at 48% 42%, rgba(24, 210, 192, 0.14), transparent 38%),
        linear-gradient(180deg, rgba(5, 7, 10, 0.36), #05070A 94%);
}

.q-hero-badge,
.q-command-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--quant-signal-cyan);
    font-family: "IBM Plex Mono", monospace;
    font-size: 12px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.q-hero-badge {
    margin-bottom: 28px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(47, 128, 237, 0.10);
    border: 1px solid rgba(47, 128, 237, 0.22);
}

.q-hero-badge::before,
.q-command-label::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--quant-signal-cyan);
    box-shadow: 0 0 18px rgba(24, 210, 192, 0.85);
}

.hero > *:not(.q-bg-video):not(.q-hero-scrim) {
    position: relative;
    z-index: 1;
}

.hero h1 {
    max-width: 980px;
    margin-left: auto !important;
    margin-right: auto !important;
    color: var(--quant-paper-white) !important;
    font-size: clamp(42px, 7vw, 92px) !important;
    line-height: 0.98 !important;
    font-weight: 700 !important;
    background: none !important;
    -webkit-text-fill-color: currentColor !important;
}

.q-gradient-text {
    background: linear-gradient(135deg, var(--quant-research-blue), var(--quant-signal-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    max-width: 760px;
    margin-left: auto !important;
    margin-right: auto !important;
    color: var(--quant-neutral-gray) !important;
    font-size: clamp(17px, 2vw, 22px) !important;
}

.btn {
    border-radius: var(--quant-radius) !important;
}

.btn-primary {
    background: var(--quant-research-blue) !important;
    box-shadow: 0 18px 50px rgba(47, 128, 237, 0.22);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05) !important;
    border-color: var(--quant-line) !important;
    color: var(--quant-paper-white) !important;
}

.search-container {
    max-width: 860px !important;
    margin-top: -46px !important;
    margin-bottom: 72px !important;
    z-index: 5;
}

.q-command-label {
    margin: 0 0 12px 4px;
}

.search-input,
#search-input,
.filter-input {
    background: rgba(10, 15, 26, 0.82) !important;
    border: 1px solid var(--quant-line) !important;
    border-radius: var(--quant-radius) !important;
    color: var(--quant-paper-white) !important;
    box-shadow: 0 20px 55px rgba(0, 0, 0, 0.22) !important;
}

.search-input:focus,
#search-input:focus,
.filter-input:focus {
    border-color: rgba(24, 210, 192, 0.46) !important;
    box-shadow: 0 0 0 1px rgba(24, 210, 192, 0.18), 0 24px 72px rgba(24, 210, 192, 0.08) !important;
}

.stats-strip {
    max-width: 1080px;
    margin: 0 auto 64px !important;
    padding: 18px 24px !important;
    gap: 0 !important;
    justify-content: space-between !important;
    background: rgba(255,255,255,0.025) !important;
    border: 1px solid var(--quant-line) !important;
    border-radius: var(--quant-radius);
}

.stat-val,
.stat-value {
    color: var(--quant-paper-white) !important;
}

.stat-lbl,
.stat-label {
    color: var(--quant-neutral-gray) !important;
}

.q-section-intro {
    max-width: 1080px;
    margin: 0 auto 22px;
    padding: 0 24px;
}

.q-section-kicker {
    color: var(--quant-signal-cyan);
    font-family: "IBM Plex Mono", monospace;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.q-section-intro h2 {
    margin: 8px 0 8px;
    color: var(--quant-paper-white);
    font-size: clamp(26px, 4vw, 40px);
}

.q-section-intro p {
    max-width: 660px;
    color: var(--quant-neutral-gray);
    line-height: 1.7;
}

.grid-section {
    max-width: 1080px !important;
}

.bento-card,
.article-card,
.requirement-card,
.role-card {
    border-radius: var(--quant-radius) !important;
    background:
        linear-gradient(135deg, rgba(47, 128, 237, 0.08), transparent 42%),
        rgba(255,255,255,0.026) !important;
    border: 1px solid var(--quant-line) !important;
    color: var(--quant-paper-white) !important;
    box-shadow: none !important;
}

.bento-card:hover,
.article-card:hover,
.requirement-card:hover {
    transform: translateY(-3px) !important;
    border-color: rgba(24, 210, 192, 0.25) !important;
    background:
        linear-gradient(135deg, rgba(24, 210, 192, 0.10), transparent 48%),
        rgba(255,255,255,0.04) !important;
}

.bento-card p,
.article-card p {
    color: var(--quant-neutral-gray) !important;
}

.card-icon,
.article-card-icon {
    color: var(--quant-signal-cyan) !important;
}

.articles-section,
.tags-section {
    max-width: 1080px !important;
}

.section-title {
    color: var(--quant-paper-white) !important;
}

.tag-pill,
.tag-chip {
    border-radius: var(--quant-radius) !important;
    background: rgba(214, 169, 74, 0.10) !important;
    border: 1px solid rgba(214, 169, 74, 0.20) !important;
    color: var(--quant-factor-gold) !important;
}

.tag-pill:hover,
.tag-chip:hover {
    background: rgba(24, 210, 192, 0.15) !important;
    border-color: rgba(24, 210, 192, 0.32) !important;
    color: var(--quant-signal-cyan) !important;
}

footer {
    background: #05070A !important;
    border-top: 1px solid var(--quant-line) !important;
    color: var(--quant-neutral-gray) !important;
}

.contact-box {
    border-radius: var(--quant-radius) !important;
    background: rgba(255,255,255,0.035) !important;
    border-color: var(--quant-line) !important;
}

/* Graph pages */
body.q-graph-page {
    overflow: hidden !important;
}

body.q-graph-page #container {
    background: var(--quant-deep-space) !important;
}

body.q-graph-page #sidebar {
    background: var(--quant-panel) !important;
    border-right: 1px solid var(--quant-line) !important;
    box-shadow: 24px 0 80px rgba(0,0,0,0.34) !important;
}

body.q-graph-page .sidebar-header {
    border-bottom: 1px solid var(--quant-line) !important;
}

body.q-graph-page .sidebar-header h1 {
    color: var(--quant-paper-white) !important;
    text-shadow: none !important;
}

body.q-graph-page .sidebar-section,
body.q-graph-page .info-card {
    background: rgba(255,255,255,0.034) !important;
    border: 1px solid var(--quant-line) !important;
    border-left-color: rgba(24, 210, 192, 0.38) !important;
    border-radius: var(--quant-radius) !important;
}

body.q-graph-page .sidebar-section h3 {
    color: var(--quant-neutral-gray) !important;
    font-family: "IBM Plex Mono", monospace !important;
}

body.q-graph-page #graph-area {
    background:
        radial-gradient(circle at 48% 42%, rgba(47, 128, 237, 0.10), transparent 42%),
        #05070A !important;
    overflow: hidden;
}

body.q-graph-page .q-page-bg {
    opacity: 0.18;
    filter: saturate(115%) contrast(110%);
}

body.q-graph-page #graph,
body.q-graph-page #3d-graph {
    position: relative;
    z-index: 1;
}

body.q-graph-page .controls-overlay,
body.q-graph-page .nav-links,
body.q-graph-page .tooltip {
    z-index: 5 !important;
}

body.q-graph-page .control-btn,
body.q-graph-page #toggle-sidebar {
    border-radius: var(--quant-radius) !important;
    background: rgba(10, 15, 26, 0.82) !important;
    border: 1px solid var(--quant-line) !important;
    color: var(--quant-neutral-gray) !important;
    box-shadow: 0 12px 42px rgba(0,0,0,0.28) !important;
}

body.q-graph-page .control-btn:hover,
body.q-graph-page #toggle-sidebar:hover {
    color: var(--quant-paper-white) !important;
    border-color: rgba(24, 210, 192, 0.38) !important;
    background: rgba(24, 210, 192, 0.10) !important;
    transform: translateY(-1px) !important;
}

body.q-graph-page .nav-links a,
body.q-graph-page .nav-link {
    border-radius: var(--quant-radius) !important;
    background: rgba(10, 15, 26, 0.82) !important;
    border: 1px solid var(--quant-line) !important;
    color: var(--quant-paper-white) !important;
}

body.q-graph-page .stats-grid .stat-item {
    background: rgba(255,255,255,0.03) !important;
    border: 1px solid var(--quant-line) !important;
    border-radius: var(--quant-radius) !important;
}

.q-workbench-label {
    color: var(--quant-signal-cyan);
    font-family: "IBM Plex Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin: 3px 0 0;
}

/* Careers */
body.q-careers-page .hero {
    min-height: 68vh;
}

body.q-careers-page .hero h1 {
    font-size: clamp(38px, 5vw, 68px) !important;
}

body.q-careers-page .hero-badge {
    background: rgba(214, 169, 74, 0.10) !important;
    color: var(--quant-factor-gold) !important;
}

body.q-careers-page input,
body.q-careers-page textarea,
body.q-careers-page select {
    background: rgba(10, 15, 26, 0.82) !important;
    border: 1px solid var(--quant-line) !important;
    color: var(--quant-paper-white) !important;
    border-radius: var(--quant-radius) !important;
}

@media (max-width: 768px) {
    .navbar {
        height: 62px !important;
        justify-content: flex-start !important;
    }

    .nav-content {
        min-width: 0;
        padding: 0 10px !important;
        gap: 8px;
        justify-content: flex-start !important;
        overflow: hidden;
    }

    .logo {
        flex: 0 0 auto;
        max-width: 108px;
        font-size: 14px !important;
        line-height: 1.15;
    }

    .nav-tabs {
        flex: 1 1 auto;
        min-width: 0;
        justify-content: flex-start !important;
        gap: 4px !important;
        overflow-x: auto;
        overflow-y: hidden;
        white-space: nowrap;
        scrollbar-width: none;
    }

    .nav-tabs::-webkit-scrollbar {
        display: none;
    }

    .nav-tab {
        flex: 0 0 auto;
        padding: 8px 10px !important;
        font-size: 13px !important;
        white-space: nowrap;
    }

    .nav-actions {
        display: none !important;
    }

    .hero {
        min-height: 84vh;
        padding-top: 108px !important;
    }

    .hero h1 {
        font-size: 40px !important;
    }

    .stats-strip {
        margin-left: 16px !important;
        margin-right: 16px !important;
        gap: 22px !important;
    }

    body.q-graph-page #sidebar {
        width: min(86vw, 380px) !important;
    }
}