/* ═══════════════════════════════════════════════════════
   DISTRIBU — Design System
   Theme: Minimalist white + orange (#FA641E)
   Font: Inter (Google Fonts)
═══════════════════════════════════════════════════════ */

/* ── TOKENS ──────────────────────────────────────────── */
:root {
    --orange:        #FA641E;
    --orange-dim:    rgba(250, 100, 30, 0.10);
    --orange-faint:  rgba(250, 100, 30, 0.05);

    --white:         #FFFFFF;
    --off-white:     #F8F6F2;
    --near-black:    #0A0A0A;
    --gray-mid:      #6B7280;
    --gray-light:    #E8E5DF;
    --border:        #EEEBE4;

    --font:          'Inter', system-ui, -apple-system, sans-serif;
    --nav-h:         68px;
    --ease:          cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out:      cubic-bezier(0.0, 0, 0.2, 1);
}

/* ── RESET ───────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--white);
    color: var(--near-black);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
a   { text-decoration: none; color: inherit; }
ul  { list-style: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font: inherit; }


/* ═══════════════════════════════════════════════════════
   NAVBAR
═══════════════════════════════════════════════════════ */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 999;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(18px) saturate(1.6);
    -webkit-backdrop-filter: blur(18px) saturate(1.6);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.navbar.scrolled {
    border-color: var(--border);
    box-shadow: 0 1px 24px rgba(0,0,0,0.06);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    height: var(--nav-h);
    padding: 0 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-text {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.6px;
    color: var(--near-black);
}

/* Nav links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-link {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-mid);
    padding: 7px 12px;
    border-radius: 8px;
    letter-spacing: -0.1px;
    transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav-link:hover {
    color: var(--near-black);
    background: var(--off-white);
}

.nav-link.is-active {
    color: var(--orange);
    background: var(--orange-dim);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--near-black);
    border-radius: 2px;
    transition: transform 0.3s var(--ease), opacity 0.3s;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
    display: none;
    overflow: hidden;
    max-height: 0;
    border-top: 1px solid transparent;
    transition: max-height 0.35s var(--ease), border-color 0.35s;
}

.mobile-menu.open {
    max-height: 320px;
    border-color: var(--border);
}

.mobile-menu ul {
    padding: 10px 24px 20px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mobile-menu .nav-link {
    display: block;
    font-size: 15px;
    padding: 12px 16px;
}


/* ═══════════════════════════════════════════════════════
   HERO — "What is Distribu?"
═══════════════════════════════════════════════════════ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: calc(var(--nav-h) + 60px) 32px 80px;
    text-align: center;
    background: transparent;
    overflow: hidden;
    gap: 48px;
}

/* Liquid canvas background */
#liquid-bg {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 820px;
}

.hero-stack {
    font-size: clamp(38px, 6.5vw, 80px);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -2.5px;
    color: var(--near-black);
    margin-bottom: 22px;
    opacity: 0; /* animated in */
}

.hero-tagline {
    font-size: clamp(16px, 2vw, 22px);
    font-weight: 400;
    color: var(--gray-mid);
    letter-spacing: -0.2px;
    opacity: 0; /* animated in */
}

.text-orange { color: var(--orange); }



/* ── ARENA (hub-and-spoke canvas) ────────────────────── */
.arena {
    position: relative;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    aspect-ratio: 1000 / 580;
    flex-shrink: 0;
}

/* SVG overlay — fills arena exactly (preserveAspectRatio="none" in HTML) */
.arena-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}


/* ── HUB — logo centre (lower-left) ─────────────────── */
.hub {
    position: absolute;
    left: 33%;
    top: 63.8%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 10;
    opacity: 0;
}

.hub-ring-outer {
    position: absolute;
    inset: -26px;
    border-radius: 50%;
    border: 1px solid rgba(250,100,30,0.25);
    animation: hubPulse 3s ease-in-out infinite;
}

@keyframes hubPulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50%       { opacity: 0;   transform: scale(1.45); }
}

.hub-icon {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    background: var(--orange);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    box-shadow:
        0 0 0 10px rgba(250,100,30,0.10),
        0 16px 48px rgba(250,100,30,0.22);
}

.hub-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

/* ── PILLAR CARDS ────────────────────────────────────── */
.pillar-card {
    position: absolute;
    width: 230px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 26px 26px 28px;
    opacity: 0; /* animated in */
    transition:
        box-shadow 0.3s var(--ease),
        border-color 0.3s var(--ease),
        transform 0.3s var(--ease);
    will-change: transform, opacity;
}

.pillar-card:hover {
    box-shadow: 0 20px 60px rgba(0,0,0,0.09);
    border-color: rgba(250,100,30,0.25);
}

/* TECHNOLOGY — top-left (short spoke, medium node) */
.card-tech {
    top: 4%;
    left: 1%;
}
.card-tech:hover { transform: translate(-3px, -4px); }

/* DATA — top-right (long spoke) */
.card-data {
    top: 1%;
    right: 0;
}
.card-data:hover { transform: translate(3px, -4px); }

/* PHYSICAL NETWORK — mid-right (horizontal spoke) */
.card-physical {
    top: 48%;
    right: 2%;
    width: 240px;
}
.card-physical:hover { transform: translate(3px, -4px); }

/* Card internals */
.card-tag {
    display: block;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2.2px;
    text-transform: uppercase;
    color: var(--orange);
    margin-bottom: 12px;
}

.card-title {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.38;
    letter-spacing: -0.5px;
    color: var(--near-black);
    margin-bottom: 18px;
}

.card-accent-line {
    height: 2px;
    width: 32px;
    background: var(--orange);
    border-radius: 2px;
    opacity: 0.35;
}


/* ═══════════════════════════════════════════════════════
   HOW IT WORKS?
═══════════════════════════════════════════════════════ */
.how-it-works {
    position: relative;
    padding: 100px 32px 80px;
    text-align: center;
    background: transparent;
}

.hiw-header {
    max-width: 720px;
    margin: 0 auto;
}

.hiw-title {
    font-size: clamp(36px, 5.5vw, 64px);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -2px;
    color: var(--near-black);
    margin-bottom: 24px;
}

.hiw-line {
    display: block;
}

.hiw-subtitle {
    font-size: clamp(15px, 1.8vw, 19px);
    font-weight: 400;
    line-height: 1.5;
    color: var(--gray-mid);
    letter-spacing: -0.2px;
}


/* ═══════════════════════════════════════════════════════
   WHY IT WORKS?
═══════════════════════════════════════════════════════ */
.why-it-works {
    position: relative;
    padding: 100px 32px 80px;
    text-align: center;
    background: transparent;
}

.why-header {
    max-width: 820px;
    margin: 0 auto;
}

/* Matches Home hero headline styles */
.why-stack {
    font-size: clamp(38px, 6.5vw, 80px);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -2.5px;
    color: var(--near-black);
    margin-bottom: 22px;
}

.why-tagline {
    font-size: clamp(16px, 2vw, 22px);
    font-weight: 400;
    color: var(--gray-mid);
    letter-spacing: -0.2px;
}

.why-visual {
    max-width: 980px;
    margin: 56px auto 0;
    padding: 0 4px;
}

.why-visual-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    cursor: pointer;
    transition:
        box-shadow 0.35s var(--ease),
        border-color 0.35s var(--ease),
        transform 0.35s var(--ease);
}

.why-visual-card:hover {
    transform: translateY(-6px);
    box-shadow:
        0 24px 64px rgba(250, 100, 30, 0.14),
        0 12px 40px rgba(0, 0, 0, 0.08);
    border-color: rgba(250, 100, 30, 0.35);
}

.why-visual-img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 12px;
    object-fit: contain;
    object-position: center;
    transition: transform 0.45s var(--ease);
}

.why-visual-card:hover .why-visual-img {
    transform: scale(1.02);
}


/* ═══════════════════════════════════════════════════════
   BENEFITS?
═══════════════════════════════════════════════════════ */
.benefits {
    position: relative;
    padding: 100px 32px 80px;
    text-align: center;
    background: transparent;
}

.benefits-header {
    max-width: 820px;
    margin: 0 auto;
}

.benefits-title {
    font-size: clamp(34px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--near-black);
}

.benefits-visual {
    max-width: 1180px;
    margin: 48px auto 0;
    padding: 0 clamp(16px, 3vw, 32px);
}

.benefits-canvas {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(220px, 460px) minmax(0, 1fr);
    gap: clamp(12px, 2vw, 28px);
    align-items: stretch;
    width: 100%;
}

.benefits-side {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: clamp(28px, 4vw, 48px);
    margin: 0;
    padding: clamp(8px, 1.5vw, 20px) 0;
    list-style: none;
}

.benefits-side--left {
    grid-column: 1;
    align-items: flex-end;
}

.benefits-side--right {
    grid-column: 3;
    align-items: flex-start;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0;
    max-width: min(100%, 300px);
}

.benefits-side--left .benefit-copy {
    text-align: right;
}

.benefits-side--right .benefit-copy {
    text-align: left;
}

.benefit-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    padding: 12px;
    background: var(--white);
    border: 2px solid var(--near-black);
    border-radius: 50%;
}

.benefit-icon-svg {
    width: 100%;
    height: 100%;
}

.benefit-connector {
    flex: 0 0 clamp(18px, 3.5vw, 44px);
    height: 0;
    border-top: 2px dashed var(--orange);
    opacity: 0.9;
}

.benefit-copy {
    flex: 1;
    min-width: 0;
    padding: 0 10px;
}

.benefit-title {
    font-size: clamp(14px, 1.4vw, 17px);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.3px;
    color: var(--near-black);
    margin-bottom: 4px;
}

.benefit-desc {
    font-size: clamp(12px, 1.15vw, 14px);
    font-weight: 400;
    line-height: 1.45;
    color: var(--gray-mid);
}

.benefit-item--placeholder {
    visibility: hidden;
    pointer-events: none;
    min-height: 52px;
}

.benefits-figure {
    grid-column: 2;
    grid-row: 1;
    margin: 0;
    width: 100%;
    justify-self: center;
    align-self: center;
    border-radius: 20px;
    overflow: hidden;
}

.benefits-visual-img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 1017px;
    aspect-ratio: 1017 / 892;
    object-fit: contain;
    object-position: center;
    border-radius: 20px;
}

.benefits-trust {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px 28px;
    width: fit-content;
    max-width: 100%;
    margin: clamp(40px, 5vw, 56px) auto 0;
    padding: 16px 32px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
}

.benefits-trust-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.benefits-trust-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
}

.benefits-trust-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--near-black);
    letter-spacing: -0.2px;
}

.benefits-trust-text strong {
    font-weight: 700;
}

.benefits-trust-divider {
    width: 1px;
    height: 28px;
    background: var(--border);
}


/* ═══════════════════════════════════════════════════════
   BACKED BY
═══════════════════════════════════════════════════════ */
.backed-by {
    position: relative;
    padding: 80px 32px 60px;
    text-align: center;
    background: transparent;
}

.backed-by-header {
    max-width: 820px;
    margin: 0 auto;
}

.backed-by-title {
    font-size: clamp(34px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--near-black);
}

.backed-by-logos {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    gap: clamp(16px, 3vw, 48px);
    width: 100%;
    max-width: 1400px;
    margin: clamp(36px, 5vw, 48px) auto 0;
    padding: 0;
    list-style: none;
}

.backed-by-logos > li {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1 1 0;
    min-width: 0;
    height: clamp(90px, 16vw, 180px);
}

.backed-by-img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    transition: transform 0.35s var(--ease);
}

.backed-by-img:hover {
    transform: scale(1.06);
}


/* ═══════════════════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════════════════ */
.contact {
    position: relative;
    padding: 100px 32px 80px;
    text-align: center;
    background: transparent;
}

.contact-header {
    max-width: 820px;
    margin: 0 auto;
}

.contact-stack {
    font-size: clamp(38px, 6.5vw, 80px);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -2.5px;
    color: var(--near-black);
    margin-bottom: 22px;
}

.contact-tagline {
    font-size: clamp(16px, 2vw, 22px);
    font-weight: 400;
    color: var(--gray-mid);
    letter-spacing: -0.2px;
}

.contact-card {
    max-width: 560px;
    margin: 56px auto 0;
    padding: 32px 28px 36px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
    text-align: left;
    transition: box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}

.contact-card:hover {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.07);
    border-color: rgba(250, 100, 30, 0.15);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form.is-hidden {
    display: none;
}

.contact-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-field label {
    font-size: 13px;
    font-weight: 600;
    color: var(--near-black);
    letter-spacing: -0.1px;
}

.contact-field input,
.contact-field textarea {
    width: 100%;
    min-height: 44px;
    padding: 12px 14px;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 400;
    color: var(--near-black);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    outline: none;
    transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.contact-field textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.5;
}

.contact-field input::placeholder,
.contact-field textarea::placeholder {
    color: var(--gray-mid);
    opacity: 0.75;
}

.contact-field input:focus,
.contact-field textarea:focus {
    border-color: rgba(250, 100, 30, 0.5);
    box-shadow: 0 0 0 3px var(--orange-dim);
}

.contact-submit {
    width: 100%;
    min-height: 48px;
    margin-top: 4px;
    padding: 14px 24px;
    font-family: var(--font);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.2px;
    color: var(--white);
    background: var(--orange);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition:
        background 0.25s var(--ease),
        transform 0.25s var(--ease),
        box-shadow 0.25s var(--ease);
}

.contact-submit:hover {
    background: #e85a15;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(250, 100, 30, 0.35);
}

.contact-submit:active {
    transform: translateY(0);
}

.contact-success {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--near-black);
    text-align: center;
    padding: 24px 12px;
}

.contact-success::before {
    content: '';
    display: block;
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: var(--orange-dim);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23FA641E' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 24px;
}


/* ═══════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════ */
.footer {
    position: relative;
    padding: 56px 32px 32px;
    border-top: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 40px 48px;
    align-items: start;
}

.footer-brand {
    max-width: 360px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.footer-logo-img {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

.footer-logo-text {
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--near-black);
}

.footer-tagline {
    font-size: 13px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--gray-mid);
    letter-spacing: -0.1px;
}

.footer-contact {
    justify-self: end;
    text-align: right;
}

.footer-contact-heading {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--orange);
    margin-bottom: 16px;
}

.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-contact-list li {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    font-size: 13px;
    font-weight: 500;
    color: var(--near-black);
    letter-spacing: -0.1px;
}

.footer-contact-list a {
    color: var(--near-black);
    transition: color 0.2s var(--ease);
}

.footer-contact-list a:hover {
    color: var(--orange);
}

.footer-contact-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--orange);
}

.footer-social {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--near-black);
    transition:
        color 0.2s var(--ease),
        border-color 0.2s var(--ease),
        background 0.2s var(--ease),
        transform 0.2s var(--ease);
}

.footer-social-link svg {
    width: 18px;
    height: 18px;
}

.footer-social-link:hover {
    color: var(--orange);
    border-color: rgba(250, 100, 30, 0.35);
    background: var(--orange-dim);
    transform: translateY(-2px);
}

.footer-bottom {
    grid-column: 1 / -1;
    padding-top: 28px;
    border-top: 1px solid var(--border);
}

.footer-copy {
    font-size: 12px;
    font-weight: 400;
    color: var(--gray-mid);
    letter-spacing: 0.1px;
}

/* Process flow — snake layout (left ↔ right, top → bottom) */
.hiw-flow {
    position: relative;
    max-width: 980px;
    margin: 64px auto 0;
    padding: 0 8px;
    text-align: left;
}

.flow-row {
    display: flex;
    align-items: center;
}

.flow-row--top {
    justify-content: space-between;
    align-items: center;
    gap: 0;
}

.flow-row--top .flow-connector--h {
    align-self: center;
    flex-shrink: 0;
}
.flow-row--left { justify-content: flex-start; }
.flow-row--right { justify-content: flex-end; }

.flow-step {
    flex: 0 0 340px;
    width: 340px;
    display: flex;
}

.flow-vwrap {
    width: 340px;
    display: flex;
    justify-content: center;
}

/* Glowing orange connector */
.flow-connector {
    position: relative;
    overflow: hidden;
    background: rgba(250, 100, 30, 0.18);
}

/* Horizontal variant — bridges left & right cards edge-to-edge */
.flow-connector--h {
    flex: 1 1 120px;
    min-width: 120px;
    height: 3px;
    margin: 0;
    border-radius: 0;
    align-self: center;
}

.flow-connector--h .flow-connector-glow {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 40%;
    border-radius: 3px;
    background: linear-gradient(90deg,
        rgba(250, 100, 30, 0) 0%,
        rgba(250, 100, 30, 0.9) 50%,
        rgba(250, 100, 30, 0) 100%);
    box-shadow: 0 0 12px 2px rgba(250, 100, 30, 0.55);
    animation: connectorFlow 2.4s linear infinite;
}

/* Vertical variant — drops between rows */
.flow-connector--v {
    width: 3px;
    height: 52px;
    border-radius: 3px;
}

.flow-connector--v .flow-connector-glow {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 45%;
    border-radius: 3px;
    background: linear-gradient(180deg,
        rgba(250, 100, 30, 0) 0%,
        rgba(250, 100, 30, 0.9) 50%,
        rgba(250, 100, 30, 0) 100%);
    box-shadow: 0 0 12px 2px rgba(250, 100, 30, 0.55);
    animation: connectorFlowV 2.4s linear infinite;
}

/* Reverse horizontal — glow flows right → left */
.flow-connector--reverse .flow-connector-glow {
    animation: connectorFlowReverse 2.4s linear infinite;
}

/* Cycle return line — left column, behind cards, glow flows down → up */
.flow-connector--cycle {
    position: absolute;
    left: 178px;
    top: 0;
    bottom: 0;
    width: 3px;
    z-index: 0;
    border-radius: 3px;
}

.flow-connector--cycle .flow-connector-glow {
    position: absolute;
    left: 0;
    width: 100%;
    height: 22%;
    border-radius: 3px;
    background: linear-gradient(180deg,
        rgba(250, 100, 30, 0) 0%,
        rgba(250, 100, 30, 0.9) 50%,
        rgba(250, 100, 30, 0) 100%);
    box-shadow: 0 0 12px 2px rgba(250, 100, 30, 0.55);
    animation: connectorFlowVUp 2.8s linear infinite;
}

@keyframes connectorFlowVUp {
    0%   { top: 105%; }
    100% { top: -25%; }
}

@keyframes connectorFlow {
    0%   { left: -45%; }
    100% { left: 105%; }
}

@keyframes connectorFlowReverse {
    0%   { left: 105%; }
    100% { left: -45%; }
}

@keyframes connectorFlowV {
    0%   { top: -50%; }
    100% { top: 105%; }
}

.flow-step-card {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 118px;
    display: flex;
    flex-direction: row;
    align-items: stretch;
    gap: 14px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 16px 18px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}

.flow-step-card:hover {
    box-shadow: 0 20px 56px rgba(0, 0, 0, 0.08);
    border-color: rgba(250, 100, 30, 0.2);
}

.flow-step-visual {
    flex: 0 0 96px;
    width: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    background: var(--off-white);
    border-radius: 12px;
}

.flow-step-img {
    width: 100%;
    height: 100%;
    max-height: 80px;
    object-fit: contain;
    object-position: center;
}

.flow-step-icon {
    width: 52px;
    height: 52px;
}

.flow-step-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: left;
    overflow: hidden;
}

.flow-step-title {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: -0.35px;
    color: var(--orange);
    margin-bottom: 5px;
    line-height: 1.2;
}

.flow-step-product {
    font-size: 12px;
    font-weight: 600;
    color: var(--near-black);
    line-height: 1.4;
    letter-spacing: -0.2px;
}


/* ═══════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════ */
@media (max-width: 860px) {
    /* Hide desktop nav, show hamburger */
    .nav-links    { display: none; }
    .hamburger    { display: flex; }
    .mobile-menu  { display: block; }

    .hero { gap: 32px; }

    /* Collapse arena into a vertical stack */
    .arena {
        aspect-ratio: unset;
        height: auto;
        display: flex;
        flex-direction: column;
        gap: 16px;
        padding: 10px 0;
    }

    /* Hide SVG on mobile */
    .arena-svg { display: none; }

    /* Hub centered in stacked layout */
    .hub {
        position: relative;
        left: auto;
        top: auto;
        transform: none;
        align-self: center;
        margin-left: auto;
        margin-right: auto;
        flex-direction: column;
        justify-content: center;
        margin-bottom: 4px;
    }

    /* Cards become full-width, stacked */
    .pillar-card {
        position: static;
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }
    .card-physical { margin-left: auto; margin-right: auto; }
    .card-tech:hover,
    .card-data:hover,
    .card-physical:hover { transform: translateY(-3px); }

    .hiw-flow {
        max-width: 400px;
        margin-top: 48px;
    }

    /* Every row stacks and centers vertically */
    .flow-row {
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .flow-step {
        flex: 0 0 auto;
        width: min(100%, 360px);
    }

    .flow-vwrap {
        width: auto;
    }

    /* Landscape cards stay horizontal on mobile */
    .flow-step-card {
        min-height: 110px;
    }

    .flow-step-visual {
        flex: 0 0 84px;
        width: 84px;
    }

    /* Cycle return line doesn't apply to the stacked mobile layout */
    .flow-connector--cycle {
        display: none;
    }

    /* Horizontal connectors become vertical on mobile */
    .flow-connector--h {
        width: 3px;
        height: 44px;
        min-width: 0;
        flex: 0 0 auto;
        margin: 6px 0;
    }

    .flow-connector--h .flow-connector-glow {
        width: 100%;
        height: 45%;
        background: linear-gradient(180deg,
            rgba(250, 100, 30, 0) 0%,
            rgba(250, 100, 30, 0.9) 50%,
            rgba(250, 100, 30, 0) 100%);
        animation: connectorFlowV 2.4s linear infinite;
    }

    /* Bottom row is reversed in HTML for desktop snake — restore 4 → 5 on mobile */
    .flow-row--top:has([data-step="5"]) .flow-step[data-step="4"] {
        order: 1;
    }

    .flow-row--top:has([data-step="5"]) .flow-connector--reverse {
        order: 2;
    }

    .flow-row--top:has([data-step="5"]) .flow-step[data-step="5"] {
        order: 3;
    }

    .benefits-canvas {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .benefits-side--left,
    .benefits-side--right {
        grid-column: 1;
        align-items: center;
        justify-content: flex-start;
        gap: 28px;
        padding: 0;
    }

    .benefit-item,
    .benefits-side--left .benefit-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        max-width: min(100%, 360px);
    }

    .benefits-side--left .benefit-copy,
    .benefits-side--right .benefit-copy {
        text-align: center;
        padding: 0;
        order: 2;
    }

    .benefit-icon {
        order: 1;
    }

    .benefit-connector {
        display: none;
    }

    .benefit-item--placeholder {
        display: none;
    }

    .benefits-figure {
        grid-column: 1;
        max-width: min(100%, 440px);
        margin-inline: auto;
        order: 0;
    }

    .benefits-side--left {
        order: 1;
    }

    .benefits-side--right {
        order: 2;
    }

    .benefits-trust {
        flex-direction: column;
        gap: 16px;
        padding: 20px;
    }

    .benefits-trust-divider {
        width: 100%;
        height: 1px;
    }

    /* Backed By — stack logos into one column */
    .backed-by-logos {
        flex-wrap: wrap;
        flex-direction: column;
        gap: 28px;
    }

    .backed-by-logos > li {
        width: 100%;
        max-width: 320px;
        height: clamp(80px, 22vw, 120px);
    }
}

@media (max-width: 480px) {
    .nav-container { padding: 0 20px; }
    .hero { padding-left: 20px; padding-right: 20px; }
    .how-it-works { padding: 72px 20px 60px; }
    .why-it-works  { padding: 72px 20px 60px; }
    .benefits      { padding: 72px 20px 60px; }
    .backed-by     { padding: 60px 20px 48px; }
    .contact       { padding: 72px 20px 60px; }

    .contact-card {
        margin-top: 40px;
        padding: 24px 20px 28px;
    }

    .footer {
        padding: 48px 20px 28px;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-contact {
        justify-self: start;
        text-align: left;
    }

    .footer-contact-list li {
        justify-content: flex-start;
    }

    .footer-social {
        justify-content: flex-start;
    }

    .why-visual {
        margin-top: 40px;
        padding: 0;
    }

    .why-visual-card {
        padding: 8px;
        border-radius: 16px;
    }

    .why-visual-img {
        border-radius: 10px;
    }

    .benefits-visual {
        margin-top: 40px;
        padding: 0;
    }

    .benefits-figure,
    .benefits-visual-img {
        border-radius: 16px;
    }
}