/* ==========================================================================
   DataNova — Smart Analytics Platform
   Design tokens
   ========================================================================== */
:root {
    /* Color */
    --dn-bg: #FFFFFF;
    --dn-surface: #F6F7FC;
    --dn-ink: #14152B;
    --dn-ink-soft: #5B5D78;
    --dn-ink-faint: #8B8DA8;
    --dn-primary: #4F46E5;
    /* indigo   */
    --dn-primary-d: #3B32C4;
    --dn-violet: #7C3AED;
    --dn-cyan: #06B6D4;
    --dn-green: #10B981;
    --dn-red: #F43F5E;
    --dn-border: #E7E8F4;
    --dn-dark: #0F1030;
    --dn-dark-2: #181A44;

    /* Gradients */
    --dn-grad-brand: linear-gradient(135deg, var(--dn-primary) 0%, var(--dn-violet) 55%, var(--dn-cyan) 100%);
    --dn-grad-soft: linear-gradient(180deg, rgba(79, 70, 229, 0.06) 0%, rgba(6, 182, 212, 0.03) 100%);

    /* Elevation */
    --dn-shadow-sm: 0 4px 14px -6px rgba(20, 21, 43, 0.10);
    --dn-shadow-md: 0 20px 50px -20px rgba(79, 70, 229, 0.28);
    --dn-shadow-lg: 0 30px 70px -25px rgba(20, 21, 43, 0.35);

    /* Shape */
    --dn-radius-sm: 10px;
    --dn-radius-md: 16px;
    --dn-radius-lg: 24px;

    /* Type */
    --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 84px;
}

body {
    font-family: var(--font-body);
    color: var(--dn-ink);
    background: var(--dn-bg);
    -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
    *:not(.spinner-border):not(.spinner-grow):not(.spin-animation):not(.dn-spin):not([class*="spinner-"]):not([class*="spin"]) {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

a {
    text-decoration: none;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
    color: var(--dn-ink);
    margin: 0;
}

.dn-text-gradient {
    background: var(--dn-grad-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ==========================================================================
   Navbar
   ========================================================================== */
.dn-navbar {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    padding: 16px 0;
    transition: box-shadow .3s ease, border-color .3s ease, padding .3s ease, background .3s ease;
}

.dn-navbar.dn-scrolled {
    border-bottom-color: var(--dn-border);
    box-shadow: var(--dn-shadow-sm);
    padding: 10px 0;
    background: rgba(255, 255, 255, 0.92);
}

.dn-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.dn-brand-icon {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 11px;
    background: var(--dn-grad-brand);
    color: #fff;
    font-size: 1.05rem;
    box-shadow: var(--dn-shadow-sm);
}

.dn-brand-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--dn-ink);
    letter-spacing: -0.02em;
}

.dn-brand-accent {
    color: var(--dn-primary);
}

.dn-nav-links {
    gap: 4px;
}

.dn-nav-link {
    font-weight: 500;
    color: var(--dn-ink-soft) !important;
    padding: 8px 16px !important;
    border-radius: 999px;
    transition: color .2s ease, background .2s ease;
}

.dn-nav-link:hover,
.dn-nav-link.active {
    color: var(--dn-primary) !important;
    background: rgba(79, 70, 229, 0.08);
}

.dn-nav-actions {
    margin-left: 12px;
}

.btn.dn-btn-primary {
    background: var(--dn-grad-brand);
    color: #fff;
    border: none;
    padding: 10px 22px;
    border-radius: 999px;
    font-weight: 600;
    box-shadow: var(--dn-shadow-sm);
    transition: transform .2s ease, box-shadow .2s ease;
}

.btn.dn-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--dn-shadow-md);
    color: #fff;
}

.btn.dn-btn-ghost {
    color: var(--dn-ink);
    font-weight: 600;
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: background .2s ease;
}

.btn.dn-btn-ghost:hover {
    background: var(--dn-surface);
    color: var(--dn-ink);
}

.btn.dn-btn-outline {
    border: 1.5px solid var(--dn-border);
    color: var(--dn-ink);
    font-weight: 600;
    border-radius: 999px;
    padding: 10px 22px;
    transition: border-color .2s ease, background .2s ease, transform .2s ease;
}

.btn.dn-btn-outline:hover {
    border-color: var(--dn-primary);
    background: rgba(79, 70, 229, 0.05);
    color: var(--dn-ink);
    transform: translateY(-2px);
}

/* ==========================================================================
   Hero
   ========================================================================== */
.dn-hero {
    position: relative;
    padding: 160px 0 90px;
    overflow: hidden;
    background: var(--dn-grad-soft);
}

.dn-hero-glow {
    position: absolute;
    top: -220px;
    right: -160px;
    width: 620px;
    height: 620px;
    background: radial-gradient(closest-side, rgba(124, 58, 237, 0.16), transparent);
    border-radius: 50%;
    pointer-events: none;
}

.dn-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--dn-primary);
    background: rgba(79, 70, 229, 0.08);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 20px;
}

.dn-eyebrow-muted {
    color: var(--dn-violet);
    background: rgba(124, 58, 237, 0.08);
}

.dn-eyebrow-on-dark {
    color: var(--dn-cyan);
    background: rgba(6, 182, 212, 0.12);
}

.dn-hero-title {
    font-size: clamp(2.1rem, 4.2vw, 3.4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 22px;
}

.dn-hero-sub {
    font-size: 1.08rem;
    color: var(--dn-ink-soft);
    max-width: 520px;
    margin-bottom: 30px;
    line-height: 1.65;
}

.dn-hero-ctas {
    margin-bottom: 28px;
}

.dn-badges {
    row-gap: 10px !important;
}

.dn-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--dn-ink-soft);
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    padding: 7px 13px;
    border-radius: 999px;
}

.dn-badge i {
    color: var(--dn-green);
}

/* ---- Console mockup ---- */
.dn-console {
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-lg);
    box-shadow: var(--dn-shadow-lg);
    overflow: hidden;
    transform: perspective(1200px) rotateY(-4deg) rotateX(1deg);
    transition: transform .5s ease;
}

.dn-console:hover {
    transform: perspective(1200px) rotateY(0deg) rotateX(0deg);
}

.dn-console-topbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    background: var(--dn-surface);
    border-bottom: 1px solid var(--dn-border);
}

.dn-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.dn-dot-red {
    background: #F43F5E;
}

.dn-dot-amber {
    background: #F59E0B;
}

.dn-dot-green {
    background: #10B981;
}

.dn-console-filename {
    margin-left: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--dn-ink-faint);
}

.dn-console-body {
    padding: 24px;
}

/* Pipeline mini (hero) */
.dn-pipeline-mini {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
}

.dn-pipeline-mini-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--dn-ink-faint);
    opacity: 0.5;
    transition: opacity .4s ease, color .4s ease;
}

.dn-pipeline-mini-step i {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--dn-surface);
    color: var(--dn-ink-faint);
    font-size: 0.95rem;
    transition: background .4s ease, color .4s ease;
}

.dn-pipeline-mini-step.is-active {
    opacity: 1;
    color: var(--dn-primary);
}

.dn-pipeline-mini-step.is-active i {
    background: var(--dn-grad-brand);
    color: #fff;
}

.dn-pipeline-mini-line {
    flex: 1;
    height: 2px;
    background: var(--dn-border);
    margin: 0 4px;
    margin-bottom: 20px;
}

/* KPI cards */
.dn-kpi-row {
    margin-bottom: 20px;
}

.dn-kpi-card {
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-sm);
    padding: 12px 10px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.dn-kpi-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--dn-ink-faint);
    letter-spacing: 0.05em;
}

.dn-kpi-value {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--dn-ink);
}

.dn-kpi-trend {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.dn-up {
    color: var(--dn-green);
}

.dn-down {
    color: var(--dn-red);
}

/* Mini chart row */
.dn-chart-row {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-sm);
    padding: 16px;
}

.dn-mini-bars {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 60px;
    flex: 1;
}

.dn-mini-bars span {
    flex: 1;
    height: var(--h);
    border-radius: 4px 4px 0 0;
    background: var(--dn-grad-brand);
    opacity: 0.85;
}

.dn-sparkline {
    width: 130px;
    height: 60px;
    flex-shrink: 0;
}

/* ==========================================================================
   Generic sections
   ========================================================================== */
.dn-section {
    padding: 96px 0;
}

.dn-section-alt {
    background: var(--dn-surface);
}

.dn-section-title {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.dn-section-sub {
    color: var(--dn-ink-soft);
    font-size: 1.02rem;
    max-width: 620px;
    line-height: 1.6;
}

.text-center .dn-section-sub {
    margin: 0 auto;
}

/* Problem cards */
.dn-problem-card {
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-md);
    padding: 32px 26px;
    height: 100%;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.dn-problem-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--dn-shadow-md);
    border-color: transparent;
}

.dn-problem-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(244, 63, 94, 0.09);
    color: var(--dn-red);
    font-size: 1.3rem;
    margin-bottom: 18px;
}

.dn-problem-card h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.dn-problem-card p {
    color: var(--dn-ink-soft);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.55;
}

.dn-solution-strip {
    margin-top: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--dn-primary);
    font-weight: 600;
}

.dn-solution-strip i {
    font-size: 1.2rem;
}

/* Feature cards */
.dn-feature-card {
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-md);
    padding: 28px 22px;
    height: 100%;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.dn-feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--dn-shadow-md);
    border-color: transparent;
}

.dn-feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    background: var(--dn-grad-brand);
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 16px;
}

.dn-feature-card h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.dn-feature-card p {
    color: var(--dn-ink-soft);
    font-size: 0.92rem;
    margin: 0;
    line-height: 1.5;
}

/* How it works — full pipeline */
.dn-pipeline-full {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-top: 56px;
    gap: 8px;
}

.dn-pipeline-full-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    min-width: 0;
}

.dn-pipeline-full-icon {
    width: 68px;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    background: var(--dn-grad-brand);
    color: #fff;
    font-size: 1.6rem;
    box-shadow: var(--dn-shadow-md);
    margin-bottom: 16px;
}

.dn-pipeline-full-step h3 {
    font-size: 1.02rem;
    margin-bottom: 4px;
}

.dn-pipeline-full-step p {
    color: var(--dn-ink-soft);
    font-size: 0.85rem;
    margin: 0;
    padding: 0 6px;
}

.dn-pipeline-full-track {
    flex: 0 0 auto;
    width: 60px;
    height: 2px;
    background: var(--dn-border);
    margin-top: 34px;
    position: relative;
    overflow: hidden;
    border-radius: 2px;
}

.dn-pipeline-pulse {
    position: absolute;
    top: -3px;
    left: -12px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--dn-cyan);
    box-shadow: 0 0 10px 2px rgba(6, 182, 212, 0.6);
    animation: dnPulseTravel 2.6s ease-in-out infinite;
}

.dn-pipeline-full-track:nth-of-type(2) .dn-pipeline-pulse {
    animation-delay: 0.4s;
}

@keyframes dnPulseTravel {
    0% {
        left: -12px;
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        left: calc(100% + 4px);
        opacity: 0;
    }
}

@media (max-width: 767.98px) {
    .dn-pipeline-full {
        flex-direction: column;
        align-items: stretch;
    }

    .dn-pipeline-full-track {
        width: 2px;
        height: 46px;
        margin: 4px auto;
    }

    .dn-pipeline-pulse {
        top: -12px;
        left: -3px;
        animation-name: dnPulseTravelV;
    }

    @keyframes dnPulseTravelV {
        0% {
            top: -12px;
            opacity: 0;
        }

        10% {
            opacity: 1;
        }

        90% {
            opacity: 1;
        }

        100% {
            top: calc(100% + 4px);
            opacity: 0;
        }
    }
}

/* Why DataNova (dark section) */
.dn-section-dark {
    background: radial-gradient(120% 140% at 20% 0%, var(--dn-dark-2) 0%, var(--dn-dark) 60%);
}

.dn-title-on-dark {
    color: #fff;
}

.dn-why-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #E6E7F5;
    font-weight: 500;
    padding: 16px 18px;
    border-radius: var(--dn-radius-sm);
    height: 100%;
}

.dn-why-chip i {
    color: var(--dn-cyan);
    font-size: 1.1rem;
}

.dn-why-tagline {
    text-align: center;
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 2.4vw, 1.7rem);
    color: #C9CAE6;
    margin-top: 52px;
    font-weight: 600;
}

.dn-why-tagline span {
    color: var(--dn-cyan);
}

/* Supported data */
.dn-data-card {
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-md);
    padding: 30px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
    height: 100%;
    transition: transform .25s ease, box-shadow .25s ease;
}

.dn-data-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--dn-shadow-sm);
}

.dn-data-card i {
    font-size: 2.1rem;
    color: var(--dn-ink-faint);
}

.dn-data-card span {
    font-weight: 600;
}

.dn-data-card small {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--dn-ink-faint);
}

.dn-data-card-primary {
    border-color: var(--dn-primary);
    background: rgba(79, 70, 229, 0.04);
}

.dn-data-card-primary i {
    color: var(--dn-primary);
}

/* AI Insights preview */
.dn-insights-card {
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-lg);
    box-shadow: var(--dn-shadow-md);
    padding: 28px;
}

.dn-insights-header {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 18px;
    color: var(--dn-primary);
}

.dn-insights-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.dn-insights-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.98rem;
    color: var(--dn-ink);
    line-height: 1.5;
}

.dn-insight-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}

.dn-dot-indigo {
    background: var(--dn-primary);
}

.dn-dot-cyan {
    background: var(--dn-cyan);
}

.dn-dot-violet {
    background: var(--dn-violet);
}

.dn-dot-green {
    background: var(--dn-green);
}

/* About visual */
.dn-about-visual {
    aspect-ratio: 1.4/1;
    border-radius: var(--dn-radius-lg);
    background: var(--dn-grad-soft);
    border: 1px solid var(--dn-border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.dn-about-visual i {
    font-size: 4.5rem;
    background: var(--dn-grad-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ==========================================================================
   CTA
   ========================================================================== */
.dn-cta {
    background: var(--dn-grad-brand);
    padding: 90px 0;
    text-align: center;
}

.dn-cta h2 {
    color: #fff;
    font-size: clamp(1.8rem, 3.4vw, 2.6rem);
    margin-bottom: 14px;
}

.dn-cta p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.05rem;
    margin-bottom: 32px;
}

.btn.dn-btn-cta {
    background: #fff;
    color: var(--dn-primary);
    font-weight: 700;
    padding: 13px 32px;
    border-radius: 999px;
    border: none;
    transition: transform .2s ease, box-shadow .2s ease;
}

.btn.dn-btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.35);
    color: var(--dn-primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.dn-footer {
    background: var(--dn-dark);
    color: #B6B8DA;
    padding: 70px 0 30px;
}

.dn-brand-footer .dn-brand-text {
    color: #fff;
}

.dn-footer-tagline {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--dn-cyan);
    margin: 12px 0 8px;
}

.dn-footer-desc {
    font-size: 0.92rem;
    max-width: 320px;
    line-height: 1.55;
}

.dn-footer-heading {
    color: #fff;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    margin-bottom: 14px;
}

.dn-footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dn-footer-links a {
    color: #B6B8DA;
    font-size: 0.92rem;
    transition: color .2s ease;
}

.dn-footer-links a:hover {
    color: #fff;
}

.dn-footer-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--dn-green);
}

.dn-footer-badge i {
    font-size: 0.55rem;
}

.dn-footer-divider {
    border-color: rgba(255, 255, 255, 0.08);
    margin: 40px 0 24px;
}

.dn-footer-copy {
    font-size: 0.82rem;
    color: #6E70A0;
    margin: 0;
}

/* ==========================================================================
   Back to top
   ========================================================================== */
.dn-back-to-top {
    position: fixed;
    bottom: 26px;
    right: 26px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--dn-grad-brand);
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: var(--dn-shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity .3s ease, transform .3s ease, visibility .3s ease;
    z-index: 999;
    cursor: pointer;
}

.dn-back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
.dn-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .7s ease, transform .7s ease;
}

.dn-reveal.dn-in-view {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Pulse animation (for scroll-to-section highlighting)
   ========================================================================== */
@keyframes dnPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.2);
    }

    70% {
        box-shadow: 0 0 0 12px rgba(79, 70, 229, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(79, 70, 229, 0);
    }
}

.dn-pulse {
    animation: dnPulse 0.8s ease 1;
}

/* ==========================================================================
   Dark theme overrides
   ========================================================================== */
[data-theme="dark"] {
    --dn-bg: #0D0E28;
    --dn-surface: #161837;
    --dn-surface-2: #1D1F45;
    --dn-ink: #F1F2FC;
    --dn-ink-soft: #B2B4D6;
    --dn-ink-faint: #7C7EA3;
    --dn-border: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .dn-navbar {
    background: rgba(13, 14, 40, 0.85);
}

[data-theme="dark"] .dn-navbar.dn-scrolled {
    background: rgba(13, 14, 40, 0.95);
}

[data-theme="dark"] .dn-console {
    background: var(--dn-surface);
    border-color: var(--dn-border);
}

[data-theme="dark"] .dn-console-topbar {
    background: var(--dn-surface-2);
    border-color: var(--dn-border);
}

[data-theme="dark"] .dn-console-filename {
    color: var(--dn-ink-faint);
}

[data-theme="dark"] .dn-badge {
    background: var(--dn-surface-2);
    border-color: var(--dn-border);
    color: var(--dn-ink-soft);
}

[data-theme="dark"] .dn-dot-red {
    background: #E73550;
}

[data-theme="dark"] .dn-dot-amber {
    background: #D97706;
}

[data-theme="dark"] .dn-dot-green {
    background: #0EA271;
}

[data-theme="dark"] .dn-hero {
    background: var(--dn-grad-soft);
}

[data-theme="dark"] .dn-section-alt {
    background: var(--dn-surface-2);
}

[data-theme="dark"] .dn-problem-card {
    background: var(--dn-surface);
}

[data-theme="dark"] .dn-feature-card {
    background: var(--dn-surface);
}

[data-theme="dark"] .dn-data-card {
    background: var(--dn-surface);
}

[data-theme="dark"] .dn-insights-card {
    background: var(--dn-surface);
}

[data-theme="dark"] .dn-about-visual {
    background: var(--dn-surface-2);
    border-color: var(--dn-border);
}

[data-theme="dark"] .dn-pipeline-mini-step i {
    background: var(--dn-surface-2);
}

[data-theme="dark"] .dn-pipeline-mini-step.is-active i {
    background: var(--dn-grad-brand);
}

[data-theme="dark"] .dn-pipeline-full-track {
    background: var(--dn-border);
}

[data-theme="dark"] .dn-pipeline-pulse {
    box-shadow: 0 0 10px 2px rgba(6, 182, 212, 0.4);
}

/* ==========================================================================
   Responsive tweaks
   ========================================================================== */
@media (max-width: 991.98px) {
    .dn-navbar .navbar-collapse {
        background: var(--dn-surface);
        border: 1px solid var(--dn-border);
        border-radius: var(--dn-radius-md);
        padding: 16px;
        margin-top: 12px;
        box-shadow: var(--dn-shadow-md);
    }

    .dn-hero {
        padding: 130px 0 70px;
    }

    .dn-nav-actions {
        margin: 16px 0 0;
    }

    .dn-console {
        transform: none;
    }
}

@media (max-width: 575.98px) {
    .dn-section {
        padding: 64px 0;
    }

    .dn-console-body {
        padding: 18px;
    }

    .dn-chart-row {
        flex-direction: column;
        align-items: stretch;
    }

    .dn-sparkline {
        width: 100%;
    }
}

/* Spinner and loading animations */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes spinner-border {
    to { transform: rotate(360deg); }
}

@keyframes spinner-grow {
    0% { transform: scale(0); }
    50% { opacity: 1; transform: none; }
}

.spin-animation,
.dn-spin {
    display: inline-block;
    animation: spin 1s linear infinite !important;
}

.spinner-border {
    display: inline-block;
    width: var(--bs-spinner-width, 2rem);
    height: var(--bs-spinner-height, 2rem);
    vertical-align: var(--bs-spinner-vertical-align, -0.125em);
    border-radius: 50%;
    animation: spinner-border var(--bs-spinner-animation-speed, 0.75s) linear infinite !important;
}

.spinner-grow {
    display: inline-block;
    width: var(--bs-spinner-width, 2rem);
    height: var(--bs-spinner-height, 2rem);
    vertical-align: var(--bs-spinner-vertical-align, -0.125em);
    border-radius: 50%;
    animation: spinner-grow var(--bs-spinner-animation-speed, 0.75s) linear infinite !important;
}