/* ============================================================
   Brand: rbdevelop.homes — RB Develop LLC
   B2B / Professional · dark · violet accent · bordered cards
   Written from scratch on Site DNA palette tokens (data-dna-palette).
   Authored sections use the rbd80- namespace; DNA contract classes
   (hero-inner, service-card, section, btn*, data-contact-*) are kept.
   ============================================================ */

:root {
    --nav-h: 78px;
    --maxw: 1160px;
    --white: #ffffff;
    --navy: var(--dna-bg, #13151f);
    /* fallbacks until DNA palette tokens land */
    --bg: #13151f;
    --surface: #1b1d2a;
    --surface-2: #232536;
    --ink: #f3f3f8;
    --ink-soft: #b3b5c6;
    --line: rgba(180, 184, 214, 0.14);
    --accent-ink: #ffffff;
    --cyan: #8b5cf6;
    --teal: #b07fde;
}

* { box-sizing: border-box; }

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

body {
    margin: 0;
    background: var(--dna-bg, var(--bg));
    color: var(--dna-ink, var(--ink));
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 17px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Archivo', system-ui, sans-serif;
    line-height: 1.12;
    letter-spacing: -0.02em;
    color: var(--dna-ink, var(--ink));
    margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.3rem, 5.2vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); font-weight: 700; }
h3 { font-size: 1.22rem; font-weight: 700; }
p { margin: 0 0 1rem; color: var(--dna-ink-soft, var(--ink-soft)); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-pad, 96px) 0; }
.section-tight { padding: calc(var(--section-pad, 96px) * 0.6) 0; }

.rbd80-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 0.74rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--dna-accent, var(--cyan));
    margin: 0 0 16px;
}
.rbd80-kicker::before {
    content: '';
    width: 22px;
    height: 2px;
    background: var(--dna-accent, var(--cyan));
    border-radius: 2px;
}
.rbd80-lead { font-size: 1.12rem; max-width: 60ch; }
.rbd80-eyebrow-center { text-align: center; }
.rbd80-eyebrow-center .rbd80-kicker { justify-content: center; }
.rbd80-eyebrow-center .rbd80-lead { margin-left: auto; margin-right: auto; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 14px 26px;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--btn-radius, 11px);
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: transform 0.18s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    line-height: 1;
}
.btn:active { transform: translateY(1px); }
.btn-solid {
    background: var(--dna-accent, var(--cyan));
    color: var(--dna-accent-ink, #fff);
}
.btn-solid:hover { background: var(--dna-accent-2, var(--teal)); }
.btn-line-dark, .btn-ghost {
    background: transparent;
    border-color: var(--dna-line, var(--line));
    color: var(--dna-ink, var(--ink));
}
.btn-line-dark:hover, .btn-ghost:hover {
    border-color: var(--dna-accent, var(--cyan));
    color: var(--dna-accent, var(--cyan));
}
.btn-block { width: 100%; }

/* ===== Header (centered layout) ===== */
.rbd80-head {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 60;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    background: color-mix(in srgb, var(--dna-bg, var(--bg)) 78%, transparent);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.25s ease, background 0.25s ease;
}
.rbd80-head.is-stuck {
    border-bottom-color: var(--dna-line, var(--line));
    background: color-mix(in srgb, var(--dna-bg, var(--bg)) 92%, transparent);
}
.rbd80-head-inner {
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 18px;
}
.rbd80-nav { display: flex; gap: 26px; }
.rbd80-nav-left { justify-content: flex-start; }
.rbd80-nav-right { justify-content: flex-end; align-items: center; gap: 22px; }
.rbd80-nav a {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--dna-ink-soft, var(--ink-soft));
    transition: color 0.18s ease;
    position: relative;
}
.rbd80-nav a:hover, .rbd80-nav a.is-active { color: var(--dna-ink, var(--ink)); }
.rbd80-nav a.is-active::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: -7px;
    height: 2px;
    background: var(--dna-accent, var(--cyan));
    border-radius: 2px;
}
.rbd80-brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    justify-self: center;
}
.rbd80-brand img { width: 34px; height: 34px; }
.rbd80-brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.rbd80-brand-name {
    font-family: 'Archivo', sans-serif;
    font-weight: 800;
    font-size: 1.12rem;
    letter-spacing: 0.01em;
    color: var(--dna-ink, var(--ink));
}
.rbd80-brand-sub {
    font-size: 0.62rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--dna-ink-soft, var(--ink-soft));
}
.rbd80-burger {
    display: none;
    width: 44px; height: 44px;
    border: 1px solid var(--dna-line, var(--line));
    border-radius: 10px;
    background: transparent;
    cursor: pointer;
    padding: 0;
    flex-direction: column;
    gap: 5px;
    align-items: center;
    justify-content: center;
}
.rbd80-burger span {
    width: 19px; height: 2px;
    background: var(--dna-ink, var(--ink));
    border-radius: 2px;
}

/* mobile drawer */
.rbd80-drawer {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: var(--dna-surface, var(--surface));
    border-bottom: 1px solid var(--dna-line, var(--line));
    transform: translateY(-130%);
    transition: transform 0.32s cubic-bezier(.4,.1,.2,1);
    z-index: 59;
    padding: 18px 24px 26px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.rbd80-drawer.is-open { transform: translateY(0); }
.rbd80-drawer a {
    padding: 13px 6px;
    font-size: 1.05rem;
    font-weight: 600;
    border-bottom: 1px solid var(--dna-line, var(--line));
    color: var(--dna-ink, var(--ink));
}
.rbd80-drawer .btn { margin-top: 14px; }
.rbd80-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(8, 9, 14, 0.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
    z-index: 58;
}
.rbd80-backdrop.is-open { opacity: 1; visibility: visible; }

/* ===== Hero (stacked) ===== */
.hero { position: relative; overflow: hidden; }
.hero-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: calc(var(--nav-h) + 70px) 24px 84px;
    display: grid;
    gap: 40px;
    position: relative;
    z-index: 2;
}
.hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--dna-line, var(--line)) 1px, transparent 1px),
        linear-gradient(90deg, var(--dna-line, var(--line)) 1px, transparent 1px);
    background-size: var(--dna-grid-size, 52px) var(--dna-grid-size, 52px);
    mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 78%);
    opacity: 0.5;
    z-index: 0;
}
.hero-glow {
    position: absolute;
    top: -10%; left: 50%;
    transform: translateX(-50%);
    width: 760px; height: 520px;
    background: radial-gradient(circle, var(--dna-accent, var(--cyan)) 0%, transparent 62%);
    opacity: var(--dna-glow-alpha, 0.13);
    filter: blur(20px);
    z-index: 0;
    pointer-events: none;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 7px 15px;
    border: 1px solid var(--dna-line, var(--line));
    border-radius: 100px;
    background: color-mix(in srgb, var(--dna-surface, var(--surface)) 60%, transparent);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--dna-ink-soft, var(--ink-soft));
    margin-bottom: 22px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--dna-accent, var(--cyan)); }
.hero-lead {
    font-size: 1.2rem;
    max-width: 60ch;
    margin-bottom: 30px;
}
.hero h1 .accent { color: var(--dna-accent, var(--cyan)); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 40px; }
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 40px;
}
.hero-stat { display: flex; flex-direction: column; }
.hero-stat b {
    font-family: 'Archivo', sans-serif;
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--dna-ink, var(--ink));
}
.hero-stat span { font-size: 0.84rem; color: var(--dna-ink-soft, var(--ink-soft)); }
.hero-visual { position: relative; }
.hero-photo {
    border-radius: var(--radius-lg, 28px);
    overflow: hidden;
    border: 1px solid var(--dna-line, var(--line));
    box-shadow: 0 30px 80px -40px rgba(0,0,0,0.8);
}
.hero-photo img { width: 100%; object-fit: cover; }

/* ===== Trust strip ===== */
.rbd80-trust {
    border-top: 1px solid var(--dna-line, var(--line));
    border-bottom: 1px solid var(--dna-line, var(--line));
    background: var(--dna-surface, var(--surface));
}
.rbd80-metricbar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--dna-line, var(--line));
}
.rbd80-metric {
    background: var(--dna-surface, var(--surface));
    padding: 34px 26px;
    text-align: center;
}
.rbd80-metric b {
    display: block;
    font-family: 'Archivo', sans-serif;
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--dna-accent, var(--cyan));
    line-height: 1;
    margin-bottom: 8px;
}
.rbd80-metric span { font-size: 0.9rem; color: var(--dna-ink-soft, var(--ink-soft)); }

/* ===== Section heading ===== */
.rbd80-shead { max-width: 640px; margin-bottom: 48px; }
.rbd80-shead.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ===== Services (icon-rows / tabs) ===== */
[data-services-catalog] { margin-top: 8px; }
.service-card, .service-item, .solution-card, .step-card {
    background: var(--dna-surface, var(--surface));
    border-radius: var(--dna-svc-radius, var(--radius, 18px));
    padding: 30px 28px;
}
/* icon-rows variant on home */
.rbd80-svc-rows { display: flex; flex-direction: column; gap: 16px; }
.rbd80-svc-row {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 22px;
    align-items: center;
    padding: 24px 26px;
    background: var(--dna-surface, var(--surface));
    border: 2px solid var(--dna-line, var(--line));
    border-radius: var(--radius, 18px);
    transition: border-color 0.2s ease, transform 0.2s ease;
}
.rbd80-svc-row:hover { border-color: var(--dna-accent, var(--cyan)); transform: translateX(4px); }
.rbd80-svc-ic {
    width: 52px; height: 52px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 14px;
    background: var(--cyan-dim, rgba(139,92,246,0.14));
    color: var(--dna-accent, var(--cyan));
    font-size: 1.5rem;
}
.rbd80-svc-row h3 { margin: 0 0 4px; }
.rbd80-svc-row p { margin: 0; font-size: 0.95rem; }
.rbd80-svc-num {
    font-family: 'Archivo', sans-serif;
    font-weight: 800;
    color: var(--dna-line, var(--line));
    font-size: 1.4rem;
}

/* services.html catalog cards */
.service-item h3 { display: flex; align-items: center; gap: 12px; }
.service-icon {
    width: 46px; height: 46px;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--cyan-dim, rgba(139,92,246,0.14));
    color: var(--dna-accent, var(--cyan));
    flex-shrink: 0;
}
.service-item ul { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 10px; }
.service-item li {
    position: relative;
    padding-left: 26px;
    font-size: 0.95rem;
    color: var(--dna-ink-soft, var(--ink-soft));
}
.service-item li::before {
    content: '';
    position: absolute;
    left: 0; top: 8px;
    width: 12px; height: 7px;
    border-left: 2px solid var(--dna-accent, var(--cyan));
    border-bottom: 2px solid var(--dna-accent, var(--cyan));
    transform: rotate(-45deg);
}
.rbd80-svc-meta {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--dna-line, var(--line));
    font-size: 0.84rem;
    color: var(--dna-ink-soft, var(--ink-soft));
}

/* tabs (DNA-injected .svc-tabs) — dark overrides */
.svc-tab {
    background: transparent;
    border-color: var(--dna-line, var(--line));
    color: var(--dna-ink-soft, var(--ink-soft));
}
.svc-tab:hover { border-color: var(--dna-accent, var(--cyan)); color: var(--dna-ink, var(--ink)); }
.svc-tab.active {
    background: var(--dna-accent, var(--cyan));
    color: var(--dna-accent-ink, #fff);
    border-color: transparent;
}

/* ===== Process / steps ===== */
.rbd80-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step-card {
    border: 2px solid var(--dna-line, var(--line));
    position: relative;
}
.step-card .step-num {
    font-family: 'Archivo', sans-serif;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--dna-accent, var(--cyan));
    display: block;
    margin-bottom: 14px;
}
.step-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.step-card p { margin: 0; font-size: 0.93rem; }

/* ===== Solutions / segments ===== */
.rbd80-solutions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.solution-card {
    border: 2px solid var(--dna-line, var(--line));
    transition: border-color 0.2s ease;
}
.solution-card:hover { border-color: var(--dna-accent, var(--cyan)); }
.solution-card .dna-ic { font-size: 1.6rem; margin-bottom: 16px; }
.solution-card h3 { margin-bottom: 8px; }
.solution-card p { margin: 0; font-size: 0.95rem; }

/* ===== About split / timeline ===== */
.rbd80-about-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
    align-items: center;
}
.rbd80-about-media {
    border-radius: var(--radius-lg, 28px);
    overflow: hidden;
    border: 1px solid var(--dna-line, var(--line));
}
.rbd80-timeline { display: grid; gap: 0; margin-top: 8px; }
.rbd80-tl-item {
    display: grid;
    grid-template-columns: 92px 1fr;
    gap: 22px;
    padding: 22px 0;
    border-bottom: 1px solid var(--dna-line, var(--line));
}
.rbd80-tl-item:last-child { border-bottom: none; }
.rbd80-tl-year {
    font-family: 'Archivo', sans-serif;
    font-weight: 800;
    color: var(--dna-accent, var(--cyan));
    font-size: 1.05rem;
}
.rbd80-tl-item h3 { font-size: 1.05rem; margin-bottom: 4px; }
.rbd80-tl-item p { margin: 0; font-size: 0.94rem; }

/* ===== Projects grid ===== */
.rbd80-proj-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.rbd80-proj {
    border: 2px solid var(--dna-line, var(--line));
    border-radius: var(--radius-lg, 24px);
    overflow: hidden;
    background: var(--dna-surface, var(--surface));
    transition: border-color 0.2s ease, transform 0.2s ease;
}
.rbd80-proj:hover { border-color: var(--dna-accent, var(--cyan)); transform: translateY(-4px); }
.rbd80-proj-media { aspect-ratio: 3 / 2; overflow: hidden; border-bottom: 1px solid var(--dna-line, var(--line)); }
.rbd80-proj-media img { width: 100%; height: 100%; object-fit: cover; }
.rbd80-proj-body { padding: 24px 26px; }
.rbd80-proj-type {
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--dna-accent, var(--cyan));
    font-weight: 600;
}
.rbd80-proj h3 { margin: 8px 0 6px; }
.rbd80-proj p { margin: 0 0 14px; font-size: 0.94rem; }
.rbd80-proj-facts { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 0.82rem; color: var(--dna-ink-soft, var(--ink-soft)); }
.rbd80-proj-facts span b { color: var(--dna-ink, var(--ink)); font-weight: 700; }

/* ===== FAQ ===== */
.rbd80-faq { max-width: 800px; margin: 0 auto; }
.rbd80-faq-item {
    border: 2px solid var(--dna-line, var(--line));
    border-radius: var(--radius, 16px);
    margin-bottom: 12px;
    overflow: hidden;
}
.rbd80-faq-q {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 20px 24px;
    font-family: 'Archivo', sans-serif;
    font-weight: 700;
    font-size: 1.02rem;
    color: var(--dna-ink, var(--ink));
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}
.rbd80-faq-q::after {
    content: '+';
    color: var(--dna-accent, var(--cyan));
    font-size: 1.5rem;
    flex-shrink: 0;
    transition: transform 0.25s ease;
}
.rbd80-faq-item.is-open .rbd80-faq-q::after { transform: rotate(45deg); }
.rbd80-faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.32s ease;
    padding: 0 24px;
}
.rbd80-faq-item.is-open .rbd80-faq-a { max-height: 320px; padding-bottom: 22px; }
.rbd80-faq-a p { margin: 0; }

/* ===== CTA band (split variant) ===== */
.rbd80-cta {
    background: var(--dna-surface, var(--surface));
    border: 1px solid var(--dna-line, var(--line));
    border-radius: var(--radius-lg, 28px);
    padding: 52px 56px;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 36px;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.rbd80-cta::before {
    content: '';
    position: absolute;
    right: -60px; top: -60px;
    width: 280px; height: 280px;
    background: radial-gradient(circle, var(--dna-accent, var(--cyan)), transparent 65%);
    opacity: 0.18;
    pointer-events: none;
}
.rbd80-cta h2 { margin-bottom: 10px; }
.rbd80-cta p { margin: 0; }
.rbd80-cta-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: flex-end; }
@media (max-width: 820px) {
    .rbd80-cta { grid-template-columns: 1fr; padding: 38px 28px; }
    .rbd80-cta-actions { justify-content: flex-start; }
}

/* ===== Footer (columns) ===== */
.rbd80-foot {
    border-top: 1px solid var(--dna-line, var(--line));
    background: var(--dna-surface, var(--surface));
    padding: 64px 0 28px;
    margin-top: 0;
}
.rbd80-foot-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 36px;
}
.rbd80-foot-brand .rbd80-brand { justify-self: start; margin-bottom: 16px; }
.rbd80-foot-brand p { font-size: 0.92rem; max-width: 32ch; }
.rbd80-foot-col h4 {
    font-family: 'Archivo', sans-serif;
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--dna-ink, var(--ink));
    margin: 0 0 16px;
}
.rbd80-foot-col a, .rbd80-foot-col p {
    display: block;
    font-size: 0.93rem;
    color: var(--dna-ink-soft, var(--ink-soft));
    margin-bottom: 10px;
}
.rbd80-foot-col a:hover { color: var(--dna-accent, var(--cyan)); }
.rbd80-foot-bottom {
    margin-top: 44px;
    padding-top: 22px;
    border-top: 1px solid var(--dna-line, var(--line));
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--dna-ink-soft, var(--ink-soft));
}

/* ===== Page header (inner pages) ===== */
.rbd80-pagehead {
    padding: calc(var(--nav-h) + 64px) 0 18px;
    position: relative;
    overflow: hidden;
}
.rbd80-pagehead .hero-glow { opacity: 0.1; }
.rbd80-crumb { font-size: 0.84rem; color: var(--dna-ink-soft, var(--ink-soft)); margin-bottom: 16px; }
.rbd80-crumb a:hover { color: var(--dna-accent, var(--cyan)); }
.rbd80-pagehead h1 { margin-bottom: 14px; }
.rbd80-pagehead p { max-width: 62ch; font-size: 1.08rem; }

/* ===== Contact ===== */
.rbd80-contact-wrap { padding-bottom: var(--section-pad, 96px); }
[data-contact-info] h2 { font-size: 1.3rem; margin-bottom: 6px; }
.rbd80-contact-owner { color: var(--dna-ink-soft, var(--ink-soft)); margin-bottom: 22px; }
.rbd80-contact-tiles { display: grid; gap: 12px; }
.rbd80-ctile {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 16px 18px;
    border: 1px solid var(--dna-line, var(--line));
    border-radius: var(--radius, 14px);
    background: var(--dna-surface, var(--surface));
}
.rbd80-ctile .dna-ic { color: var(--dna-accent, var(--cyan)); font-size: 1.2rem; margin-top: 2px; }
.rbd80-ctile-label {
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--dna-ink-soft, var(--ink-soft));
    margin: 0 0 2px;
}
.rbd80-ctile p { margin: 0; color: var(--dna-ink, var(--ink)); font-size: 0.96rem; }
.rbd80-ctile a:hover { color: var(--dna-accent, var(--cyan)); }

/* booking panel shell */
[data-contact-booking] {
    background: var(--dna-surface, var(--surface));
    border: 1px solid var(--dna-line, var(--line));
    border-radius: var(--radius-lg, 24px);
    padding: 34px 32px;
}

/* ===== Custom booking form (rbk-) ===== */
.rbk-head { margin-bottom: 26px; }
.rbk-kicker {
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--dna-accent, var(--cyan));
}
.rbk-head h2 { font-size: 1.5rem; margin: 8px 0 6px; }
.rbk-sub { margin: 0; font-size: 0.95rem; }
.rbk-step { margin-bottom: 26px; }
.rbk-step-label {
    font-family: 'Archivo', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dna-ink, var(--ink));
    margin: 0 0 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.rbk-step-label span {
    color: var(--dna-accent, var(--cyan));
    font-size: 0.8rem;
    letter-spacing: 0.06em;
}
.rbk-projects { display: grid; gap: 10px; }
.rbk-project {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border: 1.5px solid var(--dna-line, var(--line));
    border-radius: var(--radius, 13px);
    cursor: pointer;
    transition: border-color 0.18s ease, background 0.18s ease;
}
.rbk-project input { position: absolute; opacity: 0; pointer-events: none; }
.rbk-project-body { display: flex; flex-direction: column; }
.rbk-project-title { font-weight: 600; color: var(--dna-ink, var(--ink)); font-size: 0.97rem; }
.rbk-project-desc { font-size: 0.83rem; color: var(--dna-ink-soft, var(--ink-soft)); }
.rbk-project-tag {
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--dna-ink-soft, var(--ink-soft));
    border: 1px solid var(--dna-line, var(--line));
    border-radius: 100px;
    padding: 4px 10px;
    white-space: nowrap;
}
.rbk-project:hover { border-color: color-mix(in srgb, var(--dna-accent, var(--cyan)) 60%, var(--dna-line, var(--line))); }
.rbk-project:has(input:checked) {
    border-color: var(--dna-accent, var(--cyan));
    background: var(--cyan-dim, rgba(139,92,246,0.1));
}
.rbk-project:has(input:checked) .rbk-project-tag { color: var(--dna-accent, var(--cyan)); border-color: var(--dna-accent, var(--cyan)); }

.rbk-seg {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}
.rbk-seg-opt {
    position: relative;
    cursor: pointer;
}
.rbk-seg-opt input { position: absolute; opacity: 0; pointer-events: none; }
.rbk-seg-opt span {
    display: block;
    text-align: center;
    padding: 11px 8px;
    font-size: 0.88rem;
    font-weight: 600;
    border: 1.5px solid var(--dna-line, var(--line));
    border-radius: var(--btn-radius, 11px);
    color: var(--dna-ink-soft, var(--ink-soft));
    transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}
.rbk-seg-opt:has(input:checked) span {
    border-color: var(--dna-accent, var(--cyan));
    color: var(--dna-accent, var(--cyan));
    background: var(--cyan-dim, rgba(139,92,246,0.1));
}
.rbk-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.rbk-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.rbk-field { display: flex; flex-direction: column; gap: 6px; }
.rbk-field-full { grid-column: 1 / -1; }
.rbk-field label { font-size: 0.82rem; font-weight: 500; color: var(--dna-ink-soft, var(--ink-soft)); }
.rbk-field input, .rbk-field select, .rbk-field textarea {
    width: 100%;
    padding: 11px 13px;
    font: inherit;
    font-size: 0.93rem;
    color: var(--dna-ink, var(--ink));
    background: var(--dna-bg, var(--bg));
    border: 1.5px solid var(--dna-line, var(--line));
    border-radius: var(--radius, 11px);
    transition: border-color 0.18s ease;
}
.rbk-field textarea { resize: vertical; }
.rbk-field input:focus, .rbk-field select:focus, .rbk-field textarea:focus {
    outline: none;
    border-color: var(--dna-accent, var(--cyan));
}
.rbk-actions { margin-top: 8px; }
.rbk-actions .btn { width: 100%; }
.rbk-note { font-size: 0.82rem; text-align: center; margin: 14px 0 0; }

.rbk-done { text-align: center; padding: 18px 6px; }
.rbk-done-mark {
    width: 60px; height: 60px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: var(--cyan-dim, rgba(139,92,246,0.14));
    color: var(--dna-accent, var(--cyan));
    display: flex; align-items: center; justify-content: center;
}
.rbk-done-mark .dna-ic { font-size: 1.6rem; width: 1.6em; height: 1.6em; }
.rbk-recap {
    text-align: left;
    margin: 22px auto 24px;
    max-width: 360px;
    display: grid;
    gap: 0;
}
.rbk-recap div {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 11px 0;
    border-bottom: 1px solid var(--dna-line, var(--line));
}
.rbk-recap dt { color: var(--dna-ink-soft, var(--ink-soft)); font-size: 0.88rem; margin: 0; }
.rbk-recap dd { margin: 0; font-weight: 600; color: var(--dna-ink, var(--ink)); font-size: 0.9rem; text-align: right; }

/* ===== Reveal animation ===== */
[data-reveal] {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal].is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ===== Responsive ===== */
@media (max-width: 920px) {
    .rbd80-nav-left, .rbd80-nav-right { display: none; }
    .rbd80-head-inner { grid-template-columns: 1fr auto 1fr; }
    .rbd80-brand { justify-self: start; grid-column: 1 / 2; }
    .rbd80-burger { display: flex; grid-column: 3 / 4; justify-self: end; }
    .rbd80-metricbar { grid-template-columns: repeat(2, 1fr); }
    .rbd80-steps { grid-template-columns: repeat(2, 1fr); }
    .rbd80-solutions { grid-template-columns: 1fr; }
    .rbd80-about-grid { grid-template-columns: 1fr; gap: 32px; }
    .rbd80-proj-grid { grid-template-columns: 1fr; }
    .rbd80-foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
    body { font-size: 16px; }
    .rbk-row, .rbk-grid { grid-template-columns: 1fr; }
    .rbd80-metricbar { grid-template-columns: 1fr; }
    .rbd80-steps { grid-template-columns: 1fr; }
    .rbd80-foot-grid { grid-template-columns: 1fr; }
    .rbd80-svc-row { grid-template-columns: auto 1fr; }
    .rbd80-svc-num { display: none; }
    [data-contact-booking] { padding: 26px 20px; }
}