/* Bocce Simulator — 1단계 정적 프리뷰 스타일 (레이아웃: ProSimHQ 참조 / 규칙: html-wp-prep-guide 1단계)
   브레이크포인트: Desktop 1025px~ / Tablet 768~1024px / Mobile ~767px / 단위: px */

:root {
  --bk-bg: #FFFFFF;
  --bk-surface: #EEF0EA;
  --bk-surface-2: #E1E6DC;
  --bk-ink: #1B2820;
  --bk-muted: #56645A;
  --bk-rule: #C9D0C3;
  --bk-court: #2C5A3E;
  --bk-court-dark: #1F4430;
  --bk-court-line: #F3F1E6;
  --bk-red: #B23A2E;
  --bk-red-dark: #962F25;
  --bk-pallino: #E3BE35;
  --bk-font: "Inter", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --bk-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --bk-page: 1400px;
  --bk-gutter: 32px;
  --bk-header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--bk-bg); color: var(--bk-ink); font-family: var(--bk-font); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, ul, ol, dl, dd, figure, blockquote { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; }
h1, h2, h3 { font-weight: 700; line-height: 1.12; letter-spacing: -0.02em; text-wrap: balance; }
h1 { font-size: 64px; font-weight: 800; }
h2 { font-size: 44px; }
h3 { font-size: 20px; letter-spacing: -0.01em; }
:focus-visible { outline: 2px solid var(--bk-red); outline-offset: 3px; border-radius: 2px; }

.bk-page-width { max-width: var(--bk-page); margin-inline: auto; padding-inline: var(--bk-gutter); }
.bk-visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.bk-skip-link { position: absolute; left: 16px; top: -48px; z-index: 100; background: var(--bk-ink); color: #fff; padding: 10px 16px; border-radius: 4px; }
.bk-skip-link:focus { top: 12px; }
.bk-center { text-align: center; }
.bk-section { padding-block: 96px; }
.bk-section-alt { background: var(--bk-surface); }
.bk-section-head { display: grid; gap: 14px; max-width: 760px; margin-bottom: 52px; }
.bk-section-head.bk-center { margin-inline: auto; justify-items: center; }
.bk-eyebrow { font-family: var(--bk-mono); font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bk-red); font-weight: 500; }
.bk-lede { color: var(--bk-muted); font-size: 18px; max-width: 640px; }
.bk-note { font-size: 14px; color: var(--bk-muted); }
.bk-k { font-family: var(--bk-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bk-muted); }

/* buttons (pill) */
.bk-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; font-size: 15px; line-height: 1.2; padding: 14px 28px; border-radius: 9999px; border: 1.5px solid var(--bk-ink); color: var(--bk-ink); background: transparent; text-decoration: none; cursor: pointer; transition: background-color .2s, color .2s, border-color .2s, transform .2s; }
.bk-btn:hover { transform: translateY(-1px); }
.bk-btn-fill { background: var(--bk-red); border-color: var(--bk-red); color: #fff; }
.bk-btn-fill:hover, .bk-btn-fill:focus-visible { background: var(--bk-red-dark); border-color: var(--bk-red-dark); }
.bk-btn-outline:hover { background: var(--bk-ink); color: #fff; }
.bk-btn-outline-light { border-color: #fff; color: #fff; }
.bk-btn-outline-light:hover { background: #fff; color: var(--bk-court-dark); }
.bk-btn-sm { padding: 10px 20px; font-size: 14px; }
.bk-btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

/* ===== header ===== */
.bk-site-header { position: sticky; top: 0; z-index: 60; background: #fff; border-bottom: 1px solid var(--bk-rule); }
.bk-header-main { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 32px; min-height: var(--bk-header-h); }
.bk-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.bk-brand-mark { width: 36px; height: 36px; flex: none; }
.bk-mark-red { fill: var(--bk-red); }
.bk-mark-gold { fill: var(--bk-pallino); }
.bk-mark-line { stroke: var(--bk-ink); stroke-width: 1.4; stroke-dasharray: 2 2; }
.bk-brand-text { display: grid; line-height: 1.05; }
.bk-brand-name { font-weight: 800; font-size: 20px; letter-spacing: -0.02em; text-transform: uppercase; color: var(--bk-red); white-space: nowrap; }
.bk-brand-by { font-family: var(--bk-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--bk-muted); }
.bk-nav-list { display: flex; align-items: center; gap: 4px; }
.bk-nav-item { position: relative; }
.bk-nav-link { display: block; padding: 24px 12px; font-size: 15px; font-weight: 500; text-decoration: none; color: var(--bk-ink); white-space: nowrap; }
.bk-nav-link:hover { color: var(--bk-red); }
.bk-sub-toggle { display: none; }
.bk-has-sub > .bk-nav-link::after { content: ""; display: inline-block; width: 6px; height: 6px; margin-left: 8px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translateY(-3px) rotate(45deg); }
.bk-nav-dropdown { position: absolute; top: 100%; left: 0; min-width: 280px; padding: 12px 0; background: #fff; border: 1px solid var(--bk-rule); border-top: 2px solid var(--bk-red); box-shadow: 0 20px 40px -20px rgba(10, 30, 18, .35); visibility: hidden; opacity: 0; transform: translateY(6px); transition: opacity .15s, transform .15s, visibility .15s; }
.bk-nav-dropdown.bk-flip-left { left: auto; right: 0; }
.bk-nav-dropdown a { display: block; padding: 10px 24px; font-size: 15px; text-decoration: none; color: var(--bk-muted); }
.bk-nav-dropdown a:hover { color: var(--bk-red); background: var(--bk-surface); }
.bk-menu-trigger { display: none; }

@media (min-width: 1025px) {
  .bk-has-sub:hover > .bk-nav-dropdown, .bk-has-sub:focus-within > .bk-nav-dropdown, .bk-has-sub.bk-is-open > .bk-nav-dropdown { visibility: visible; opacity: 1; transform: none; }
}

/* ===== hero ===== */
.bk-hero { background: var(--bk-court); color: #fff; }
.bk-hero-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; padding-block: 80px; }
.bk-hero-inner > * { min-width: 0; }
.bk-hero .bk-eyebrow { color: var(--bk-pallino); }
.bk-hero h1 { margin-top: 16px; }
.bk-hero h1 em { font-style: normal; color: var(--bk-pallino); }
.bk-hero .bk-lede { color: rgba(255, 255, 255, .85); margin-top: 24px; }
.bk-court-frame { position: relative; background: var(--bk-court-dark); border-radius: 12px; padding: 14px; box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .6); max-width: 520px; width: 100%; justify-self: center; }
.bk-court-frame canvas { width: 100%; height: auto; aspect-ratio: 4 / 5; border-radius: 6px; }
.bk-readout { position: absolute; left: 28px; right: 28px; bottom: 28px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-family: var(--bk-mono); font-size: 13px; letter-spacing: 0.04em; color: var(--bk-court-line); pointer-events: none; }
.bk-readout b { font-weight: 500; color: var(--bk-pallino); }

/* ===== spec strip ===== */
.bk-specs { background: var(--bk-ink); color: #fff; }
.bk-specs-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.bk-spec { display: grid; gap: 2px; padding: 28px 24px; border-left: 1px solid rgba(255, 255, 255, .15); min-width: 0; }
.bk-spec:first-child { border-left: 0; padding-left: 0; }
.bk-spec-k { font-family: var(--bk-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255, 255, 255, .6); }
.bk-spec-v { font-size: 36px; font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.bk-spec-s { font-size: 14px; color: rgba(255, 255, 255, .7); }

/* ===== intro ===== */
.bk-quote { font-size: 40px; font-weight: 700; line-height: 1.12; letter-spacing: -0.02em; }
.bk-figure { margin: 0; }
.bk-cap { font-family: var(--bk-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--bk-muted); margin-top: 12px; }

/* photos: real photo over drawn scene (scene stays visible if photo cannot load) */
.bk-photo { position: relative; overflow: hidden; border-radius: 12px; background: var(--bk-surface-2); max-width: 100%; }
.bk-photo > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 2; }
.bk-photo-wide { aspect-ratio: 16 / 7; }
.bk-photo-stage { aspect-ratio: 16 / 9; }
.bk-photo-thumb { display: block; aspect-ratio: 16 / 10; border-radius: 8px; border: 2px solid transparent; }
.bk-photo-product { aspect-ratio: 4 / 3; background: var(--bk-court); }
.bk-photo-product > svg { position: absolute; inset: 0; width: 100%; height: 100%; }

.bk-scene { position: absolute; inset: 0; background: var(--bk-sky); }
.bk-scene-band { position: absolute; left: 0; right: 0; top: var(--bk-hz, 46%); height: 14%; background: var(--bk-far); }
.bk-scene-ground { position: absolute; left: 0; right: 0; bottom: 0; top: calc(var(--bk-hz, 46%) + 14%); background: var(--bk-ground); }
.bk-scene-lane { position: absolute; left: 0; right: 0; bottom: 0; height: 52%; clip-path: polygon(36% 0, 64% 0, 98% 100%, 2% 100%); background: #f3f1e6; }
.bk-scene-lane i { position: absolute; inset: 3px 4px 0; clip-path: polygon(36.4% 0, 63.6% 0, 97.6% 100%, 2.4% 100%); background: var(--bk-lane); }
.bk-scene-lights { position: absolute; inset: 0; background: var(--bk-lights, none); }
.bk-ball { position: absolute; border-radius: 50%; z-index: 1; box-shadow: inset -3px -4px 0 rgba(0, 0, 0, .25); aspect-ratio: 1; }
.bk-ball-p { width: 1.6%; background: #E9C43A; left: 49.2%; top: 56%; }
.bk-ball-r { width: 3.4%; background: #C23B2C; left: 44%; top: 60%; }
.bk-ball-g { width: 4.2%; background: #2E9A5E; left: 53%; top: 66%; }
.bk-sc-villa { --bk-sky: linear-gradient(180deg, #d7e2c6, #efe6cf); --bk-far: linear-gradient(180deg, #7f8f5a, #6e7d4c); --bk-ground: linear-gradient(180deg, #b49a72, #9c8460); --bk-lane: linear-gradient(180deg, #c98e64, #a46c48); }
.bk-sc-sea { --bk-sky: linear-gradient(180deg, #9fc8dc, #d8ebf1); --bk-far: linear-gradient(180deg, #4f8fa8, #3f7a92); --bk-ground: linear-gradient(180deg, #e3d3ad, #cdb98e); --bk-lane: linear-gradient(180deg, #d9c8a2, #bfa77c); }
.bk-sc-stadium { --bk-sky: linear-gradient(180deg, #141c23, #26323c); --bk-far: repeating-linear-gradient(90deg, #33414d 0 6px, #2a3742 6px 12px); --bk-ground: linear-gradient(180deg, #1d262e, #151c22); --bk-lane: linear-gradient(180deg, #3a7a52, #2e6b45); --bk-lights: radial-gradient(ellipse at 22% 6%, rgba(255, 248, 214, .55) 0 6%, transparent 26%), radial-gradient(ellipse at 78% 6%, rgba(255, 248, 214, .55) 0 6%, transparent 26%); }
.bk-sc-park { --bk-sky: linear-gradient(180deg, #cfe7f0, #eef6f2); --bk-far: linear-gradient(180deg, #6f9a55, #5d8746); --bk-ground: linear-gradient(180deg, #9cc07a, #86ad64); --bk-lane: linear-gradient(180deg, #a8a294, #8f897b); }
.bk-sc-players { --bk-sky: linear-gradient(180deg, #1f2a33, #2b3843); --bk-far: linear-gradient(180deg, #e9edf0, #cfd6db); --bk-hz: 18%; --bk-ground: linear-gradient(180deg, #4a5560, #3a444d); --bk-lane: linear-gradient(180deg, #3a7a52, #2e6b45); }

/* ===== how it works ===== */
.bk-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; counter-reset: bk-step; }
.bk-step { position: relative; display: grid; gap: 10px; align-content: start; padding: 28px 22px; background: #fff; border-radius: 12px; min-width: 0; }
.bk-step::before { counter-increment: bk-step; content: counter(bk-step, decimal-leading-zero); font-family: var(--bk-mono); font-size: 14px; color: var(--bk-red); }
.bk-step p { color: var(--bk-muted); font-size: 15px; }

/* ===== courts picker ===== */
.bk-picker { display: grid; grid-template-columns: 340px 1fr; gap: 32px; align-items: start; }
.bk-picker > * { min-width: 0; }
.bk-court-list { display: grid; gap: 10px; }
.bk-court-tab { display: grid; grid-template-columns: auto 1fr; gap: 2px 16px; align-items: baseline; text-align: left; padding: 18px 20px; background: #fff; border: 1.5px solid var(--bk-rule); border-radius: 12px; cursor: pointer; transition: border-color .2s, background-color .2s; }
.bk-court-num { grid-row: span 2; font-family: var(--bk-mono); font-size: 13px; color: var(--bk-muted); }
.bk-court-name { font-weight: 700; font-size: 18px; line-height: 1.2; }
.bk-court-kind { font-size: 14px; color: var(--bk-muted); }
.bk-court-tab:hover { border-color: var(--bk-red); }
.bk-court-tab[aria-selected="true"] { border-color: var(--bk-red); background: var(--bk-surface); }
.bk-court-tab[aria-selected="true"] .bk-court-name, .bk-court-tab[aria-selected="true"] .bk-court-num { color: var(--bk-red); }
.bk-stage-tag { position: absolute; left: 16px; top: 16px; z-index: 3; font-family: var(--bk-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; background: #fff; color: var(--bk-ink); padding: 6px 12px; border-radius: 9999px; }
.bk-stage-info { display: grid; gap: 6px; margin-top: 18px; }
.bk-stage-info h3 { font-size: 28px; }
.bk-stage-info p { color: var(--bk-muted); max-width: 560px; }
.bk-court-panel[hidden] { display: none; }
.bk-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 20px; }
.bk-thumb { padding: 0; border: 0; background: none; cursor: pointer; border-radius: 8px; }
.bk-thumb[aria-pressed="true"] .bk-photo-thumb { border-color: var(--bk-red); }

.bk-surf-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--bk-rule); }
.bk-surface-card { display: grid; gap: 10px; min-width: 0; align-content: start; }
.bk-swatch { height: 56px; border-radius: 8px; }
.bk-surface-card h3 { font-size: 18px; }
.bk-roll { font-family: var(--bk-mono); font-size: 13px; color: var(--bk-muted); }
.bk-meter { display: block; position: relative; height: 4px; border-radius: 2px; background: var(--bk-rule); overflow: hidden; }
.bk-meter i { position: absolute; inset: 0 auto 0 0; background: var(--bk-court); }
.bk-sw-shell { background: radial-gradient(circle at 20% 30%, #fff 0 2px, transparent 3px), radial-gradient(circle at 70% 60%, #ddd6c8 0 3px, transparent 4px), radial-gradient(circle at 45% 80%, #fff 0 2px, transparent 3px), #cfc6b4; }
.bk-sw-gravel { background: radial-gradient(circle at 25% 35%, #8a8478 0 4px, transparent 5px), radial-gradient(circle at 70% 65%, #6f6a60 0 5px, transparent 6px), radial-gradient(circle at 55% 20%, #a39d90 0 3px, transparent 4px), #918a7c; }
.bk-sw-clay { background: linear-gradient(180deg, #b9805a, #a46c48); }
.bk-sw-turf { background: repeating-linear-gradient(90deg, #2f6b45 0 2px, #3a7a52 2px 4px); }
.bk-surf-grid + .bk-note { margin-top: 20px; }

/* width helpers (meter / bar fills) */
.bk-w-30 { width: 30%; } .bk-w-48 { width: 48%; } .bk-w-66 { width: 66%; } .bk-w-82 { width: 82%; }
.bk-w-51 { width: 51.3%; } .bk-w-59 { width: 59.3%; } .bk-w-100 { width: 100%; }

/* ===== marquee ===== */
.bk-marquee { overflow: hidden; background: var(--bk-ink); color: #fff; padding-block: 22px; }
.bk-marquee-inner { display: flex; width: max-content; animation: bk-marquee 40s linear infinite; }
.bk-marquee-track { display: flex; flex: none; align-items: center; }
.bk-marquee-track li { padding-inline: 32px; font-size: 24px; font-weight: 700; letter-spacing: -0.01em; text-transform: uppercase; white-space: nowrap; }
.bk-marquee-track li::after { content: ""; display: inline-block; width: 10px; height: 10px; margin-left: 64px; border-radius: 50%; background: var(--bk-pallino); }
@keyframes bk-marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .bk-marquee-inner { animation: none; } html { scroll-behavior: auto; } }

/* ===== game modes ===== */
.bk-mode-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.bk-mode-card { display: grid; gap: 14px; align-content: start; padding: 32px 26px; background: var(--bk-surface); border-radius: 12px; min-width: 0; }
.bk-tag { font-family: var(--bk-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--bk-red); }
.bk-mode-list { display: grid; gap: 12px; }
.bk-mode-list li { position: relative; padding-left: 22px; font-size: 15px; color: var(--bk-muted); }
.bk-mode-list li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 9px; height: 9px; border-radius: 50%; background: var(--bk-court); }
.bk-mode-list b { font-weight: 600; color: var(--bk-ink); }

/* ===== product / system ===== */
.bk-product-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.bk-product-inner > * { min-width: 0; }
.bk-product .bk-section-head { margin-bottom: 32px; }
.bk-kit { border-top: 2px solid var(--bk-ink); }
.bk-kit-row { display: grid; grid-template-columns: 140px 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--bk-rule); }
.bk-kit dt { font-family: var(--bk-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--bk-muted); padding-top: 4px; }
.bk-kit b { font-weight: 600; }
.bk-kit p { color: var(--bk-muted); font-size: 15px; margin-top: 2px; }

/* ===== access ===== */
.bk-access { background: var(--bk-court); color: var(--bk-court-line); }
.bk-access .bk-eyebrow { color: var(--bk-pallino); }
.bk-access .bk-lede { color: rgba(243, 241, 230, .85); }
.bk-access-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.bk-access-card { border-top: 2px solid var(--bk-court-line); padding-top: 18px; min-width: 0; }
.bk-access-card p { opacity: .85; font-size: 15px; margin-top: 8px; }

/* ===== compare ===== */
.bk-compare-wrap { overflow-x: auto; }
.bk-compare-table { width: 100%; min-width: 720px; border-collapse: collapse; font-size: 15px; }
.bk-compare-table th, .bk-compare-table td { text-align: left; padding: 18px 16px; border-bottom: 1px solid var(--bk-rule); vertical-align: top; }
.bk-compare-table thead th { font-family: var(--bk-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--bk-muted); font-weight: 500; border-bottom: 2px solid var(--bk-ink); }
.bk-compare-table thead th.bk-us { color: var(--bk-red); }
.bk-compare-table td.bk-us { font-weight: 600; background: var(--bk-surface); }
.bk-compare-table tbody th { font-weight: 600; width: 22%; }

/* ===== market ===== */
.bk-mkt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bk-mkt-card { display: grid; gap: 8px; align-content: start; padding: 32px 28px; background: #fff; border-radius: 12px; min-width: 0; }
.bk-v { font-size: 56px; font-weight: 800; line-height: 1; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.bk-v small { font-size: 18px; font-weight: 600; color: var(--bk-muted); margin-left: 6px; letter-spacing: 0; }
.bk-mkt-card p { color: var(--bk-muted); font-size: 15px; }
.bk-mkt-card ul { display: grid; gap: 6px; margin-top: 6px; font-size: 14px; }
.bk-mkt-card li { display: flex; justify-content: space-between; gap: 12px; border-top: 1px solid var(--bk-rule); padding-top: 6px; }
.bk-mkt-card li b { font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.bk-growth { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: center; margin-top: 56px; }
.bk-growth > * { min-width: 0; }
.bk-growth h3 { font-size: 28px; }
.bk-growth p { color: var(--bk-muted); margin-top: 10px; }
.bk-bars { display: grid; gap: 12px; }
.bk-bar { display: grid; grid-template-columns: 110px 1fr 72px; gap: 12px; align-items: center; font-variant-numeric: tabular-nums; }
.bk-bar-y { font-family: var(--bk-mono); font-size: 13px; color: var(--bk-muted); }
.bk-bar-track { position: relative; display: block; height: 28px; }
.bk-bar-fill { position: absolute; inset: 0 auto 0 0; background: var(--bk-court); border-radius: 0 6px 6px 0; }
.bk-bar-fc .bk-bar-fill { background: repeating-linear-gradient(135deg, var(--bk-court) 0 6px, #6f9480 6px 9px); }
.bk-bar-n { font-weight: 600; text-align: right; }
.bk-bar:hover .bk-bar-fill { filter: brightness(1.15); }
.bk-src { font-size: 13px; color: var(--bk-muted); margin-top: 32px; max-width: 900px; }
.bk-src a { color: var(--bk-muted); }

/* ===== audiences ===== */
.bk-aud-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.bk-aud-card { display: grid; gap: 10px; align-content: start; padding: 28px 24px; background: var(--bk-surface); border-radius: 12px; min-width: 0; }
.bk-aud-card p { color: var(--bk-muted); font-size: 15px; }

/* ===== demo / form ===== */
.bk-demo { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: start; }
.bk-demo > * { min-width: 0; }
.bk-demo-copy { display: grid; gap: 16px; justify-items: start; }
.bk-demo-copy .bk-btn-row { margin-top: 8px; }
.bk-showroom { display: grid; gap: 4px; margin-top: 12px; padding-left: 16px; border-left: 3px solid var(--bk-red); }
.bk-demo-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; background: #fff; padding: 32px; border-radius: 12px; }
.bk-full { grid-column: 1 / -1; }
.bk-field { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
.bk-field input, .bk-field select, .bk-field textarea { font: inherit; font-weight: 400; font-size: 16px; width: 100%; padding: 12px 14px; border: 1.5px solid var(--bk-rule); border-radius: 8px; background: #fff; color: var(--bk-ink); }
.bk-field input:focus, .bk-field select:focus, .bk-field textarea:focus { outline: none; border-color: var(--bk-court); }
.bk-field textarea { min-height: 104px; resize: vertical; }
.bk-form-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.bk-form-done { padding: 14px 16px; border-radius: 8px; background: var(--bk-surface); border: 1.5px solid var(--bk-court); font-size: 15px; }
.bk-form-done[hidden] { display: none; }

/* ===== faq ===== */
.bk-faq-list { max-width: 880px; margin-inline: auto; border-top: 2px solid var(--bk-ink); }
.bk-faq-item { border-bottom: 1px solid var(--bk-rule); padding: 20px 0; }
.bk-faq-item summary { display: flex; justify-content: space-between; gap: 16px; cursor: pointer; font-weight: 600; font-size: 17px; list-style: none; }
.bk-faq-item summary::-webkit-details-marker { display: none; }
.bk-faq-item summary::after { content: "+"; font-family: var(--bk-mono); font-size: 20px; line-height: 1; color: var(--bk-red); }
.bk-faq-item[open] summary::after { content: "–"; }
.bk-faq-item p { color: var(--bk-muted); margin-top: 12px; max-width: 700px; }

/* ===== footer ===== */
.bk-site-footer { background: var(--bk-ink); color: rgba(255, 255, 255, .75); font-size: 15px; }
.bk-footer-inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; padding-block: 64px 40px; }
.bk-footer-inner > *, .bk-footer-left > * { min-width: 0; display: grid; gap: 10px; align-content: start; justify-items: start; }
.bk-footer-left { gap: 32px; }
.bk-footer-title { font-size: 16px; font-weight: 700; color: #fff; text-transform: uppercase; letter-spacing: 0.04em; }
.bk-site-footer a { color: #fff; }
.bk-site-footer a.bk-btn { color: #fff; margin-top: 8px; }
.bk-footer-nav ul { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.bk-footer-nav a { text-decoration: none; color: rgba(255, 255, 255, .75); }
.bk-footer-nav a:hover { color: #fff; text-decoration: underline; }
.bk-footer-contact { display: flex; flex-wrap: wrap; gap: 12px 32px; margin: 0; }
.bk-footer-contact div { display: grid; gap: 2px; }
.bk-footer-contact dt { font-size: 13px; font-weight: 700; color: rgba(255, 255, 255, .6); text-transform: uppercase; letter-spacing: 0.04em; }
.bk-footer-contact dd { margin: 0; }
.bk-footer-contact a { text-decoration: none; }
.bk-footer-contact a:hover { text-decoration: underline; }
.bk-footer-bottom { padding-block: 24px 40px; border-top: 1px solid rgba(255, 255, 255, .15); font-size: 14px; }

/* ===== Tablet 768–1024 ===== */
@media (max-width: 1024px) {
  :root { --bk-gutter: 32px; }
  h1 { font-size: 52px; }
  h2 { font-size: 38px; }
  .bk-section { padding-block: 72px; }
  .bk-header-main { grid-template-columns: auto 1fr auto; gap: 16px; }
  .bk-menu-trigger { display: inline-flex; flex-direction: column; justify-content: center; gap: 5px; width: 44px; height: 44px; padding: 0 10px; border: 0; background: none; cursor: pointer; }
  .bk-menu-trigger span { display: block; height: 2px; background: var(--bk-ink); border-radius: 1px; transition: transform .2s, opacity .2s; }
  .bk-menu-trigger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .bk-menu-trigger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .bk-menu-trigger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .bk-header-main { grid-template-areas: "menu brand cta"; grid-template-columns: 44px 1fr auto; }
  .bk-menu-trigger { grid-area: menu; }
  .bk-brand { grid-area: brand; }
  .bk-header-cta { grid-area: cta; }
  .bk-nav-main { position: fixed; top: var(--bk-header-h); left: 0; right: 0; bottom: 0; z-index: 55; background: #fff; overflow-y: auto; padding: 8px var(--bk-gutter) 40px; visibility: hidden; opacity: 0; transform: translateY(-8px); transition: opacity .2s, transform .2s, visibility .2s; }
  .bk-nav-main.bk-is-open { visibility: visible; opacity: 1; transform: none; }
  .bk-nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .bk-nav-item { display: flex; flex-wrap: wrap; align-items: center; border-bottom: 1px solid var(--bk-rule); }
  .bk-nav-link { flex: 1 1 0; padding: 16px 4px; font-size: 18px; }
  .bk-has-sub > .bk-nav-link::after { display: none; }
  .bk-sub-toggle { display: inline-flex; align-items: center; justify-content: center; flex: none; width: 48px; height: 48px; border: 0; background: none; cursor: pointer; }
  .bk-sub-toggle::before { content: ""; width: 10px; height: 10px; border-right: 2px solid var(--bk-ink); border-bottom: 2px solid var(--bk-ink); transform: translateY(-3px) rotate(45deg); transition: transform .2s; }
  .bk-sub-toggle[aria-expanded="true"]::before { transform: translateY(3px) rotate(-135deg); }
  .bk-nav-dropdown { position: static; flex-basis: 100%; width: 100%; min-width: 0; padding: 0 0 12px 12px; border: 0; box-shadow: none; visibility: visible; opacity: 1; transform: none; display: none; }
  .bk-nav-dropdown a { padding: 12px 8px; }
  .bk-has-sub.bk-is-open > .bk-nav-dropdown { display: block; }

  .bk-hero-inner { grid-template-columns: 1fr; gap: 48px; padding-block: 56px; }
  .bk-specs-grid { grid-template-columns: 1fr 1fr; }
  .bk-spec:nth-child(3) { border-left: 0; padding-left: 0; }
  .bk-spec:nth-child(n+3) { border-top: 1px solid rgba(255, 255, 255, .15); }
  .bk-steps { grid-template-columns: 1fr 1fr 1fr; }
  .bk-picker { grid-template-columns: 1fr; }
  .bk-court-list { grid-template-columns: 1fr 1fr; }
  .bk-surf-grid { grid-template-columns: 1fr 1fr; }
  .bk-mode-grid { grid-template-columns: 1fr 1fr; }
  .bk-product-inner { grid-template-columns: 1fr; gap: 40px; }
  .bk-access-grid { grid-template-columns: 1fr 1fr; }
  .bk-mkt-grid { grid-template-columns: 1fr; }
  .bk-growth { grid-template-columns: 1fr; gap: 28px; }
  .bk-aud-grid { grid-template-columns: 1fr 1fr; }
  .bk-demo { grid-template-columns: 1fr; gap: 40px; }
  .bk-footer-inner { grid-template-columns: 1fr 1fr; }
}

/* ===== Mobile ≤767 ===== */
@media (max-width: 767px) {
  :root { --bk-gutter: 20px; --bk-header-h: 64px; }
  h1 { font-size: 40px; }
  h2 { font-size: 32px; }
  .bk-section { padding-block: 56px; }
  .bk-section-head { margin-bottom: 36px; }
  .bk-lede { font-size: 16px; }
  .bk-quote { font-size: 28px; }
  .bk-brand-name { font-size: 16px; }
  .bk-brand-mark { width: 30px; height: 30px; }
  .bk-header-cta { padding: 9px 14px; font-size: 13px; }
  .bk-hero-inner { padding-block: 40px; }
  .bk-btn-row .bk-btn { flex: 1 1 100%; }
  .bk-spec-v { font-size: 28px; }
  .bk-spec { padding: 20px 14px; }
  .bk-photo-wide { aspect-ratio: 16 / 10; }
  .bk-steps { grid-template-columns: 1fr; }
  .bk-court-list { grid-template-columns: 1fr; }
  .bk-stage-info h3 { font-size: 22px; }
  .bk-surf-grid { grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 44px; }
  .bk-marquee-track li { font-size: 18px; padding-inline: 20px; }
  .bk-marquee-track li::after { margin-left: 40px; }
  .bk-mode-grid { grid-template-columns: 1fr; }
  .bk-kit-row { grid-template-columns: 1fr; gap: 4px; }
  .bk-access-grid { grid-template-columns: 1fr; }
  .bk-v { font-size: 44px; }
  .bk-bar { grid-template-columns: 84px 1fr 62px; gap: 8px; }
  .bk-aud-grid { grid-template-columns: 1fr; }
  .bk-demo-form { grid-template-columns: 1fr; padding: 20px; }
  .bk-footer-inner { grid-template-columns: 1fr; gap: 32px; padding-block: 48px 32px; }
}