* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { font-family: 'Inter', sans-serif; color: #000; background: #fff; -webkit-font-smoothing: antialiased; }
a { color: #000; text-decoration: none; }
a:hover { color: rgba(0,0,0,0.6); }
img, video, svg { display: block; }

@keyframes nk-navDown { from { opacity: 0; transform: translateY(-16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes nk-videoIn { from { opacity: 0; transform: scale(1.05); } to { opacity: 1; transform: scale(1); } }
@keyframes nk-up20 { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes nk-up16 { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes nk-pulse { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(0.55); opacity: 0.45; } }
@keyframes nk-scrollcue { 0% { transform: translateY(-6px); opacity: 0; } 40% { opacity: 1; } 100% { transform: translateY(10px); opacity: 0; } }
@keyframes nk-spin { to { transform: rotate(360deg); } }

.wrap { position: relative; width: 100%; background: #fff; }

/* ---- Hero / scroll track ---- */
.track { position: relative; width: 100%; height: 260vh; }
.hero { position: sticky; top: 0; height: 100vh; width: 100%; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; }

.video-layer { position: absolute; inset: 0; z-index: 0; display: flex; align-items: center; justify-content: center; }
.video-wrap { width: 100%; height: 100%; overflow: hidden; }
.video-wrap video { width: 100%; height: 100%; object-fit: cover; animation: nk-videoIn 1.8s cubic-bezier(0.16,1,0.3,1) both; }
.video-loading { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: #f4f4f6; transition: opacity 0.6s ease; }
.video-loading.hide { opacity: 0; pointer-events: none; }
.spinner { width: 26px; height: 26px; border: 2px solid rgba(0,0,0,0.15); border-top-color: #000; border-radius: 50%; animation: nk-spin 0.9s linear infinite; }

/* ---- Nav ---- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; padding: 16px; pointer-events: none; animation: nk-navDown 0.8s cubic-bezier(0.16,1,0.3,1) both; }
.nav-left { display: flex; align-items: center; gap: 12px; pointer-events: auto; }
.nav-right { pointer-events: auto; }
.logo { display: flex; align-items: center; gap: 8px; }
.brand { display: none; font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }

.menu-btn { display: flex; align-items: center; gap: 7px; background: #000; border: none; cursor: pointer; border-radius: 9999px; padding: 4px 10px 4px 4px; height: 28px; font-family: inherit; }
.menu-btn-icon { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; border-radius: 50%; background: #fff; }
#menu-plus { transition: transform 0.4s cubic-bezier(0.16,1,0.3,1); }
#menu-label { font-size: 11px; color: #fff; font-weight: 500; }

.tags-pill { display: none; align-items: center; gap: 8px; background: #F4F4F6; border-radius: 9999px; padding: 8px 14px; }
.tags-pill span { font-size: 11px; color: rgba(0,0,0,0.55); font-weight: 500; }
.mini-dot { width: 3px !important; height: 3px; border-radius: 50%; background: rgba(0,0,0,0.3); }

.menu-panel { position: fixed; z-index: 45; top: 58px; left: 16px; pointer-events: none; display: flex; flex-direction: column; gap: 14px; background: #fff; border: 1px solid rgba(0,0,0,0.1); border-radius: 18px; padding: 20px 24px; min-width: 200px; box-shadow: 0 24px 60px rgba(0,0,0,0.14); opacity: 0; transform: translateY(-8px); transition: opacity 0.35s cubic-bezier(0.16,1,0.3,1), transform 0.35s cubic-bezier(0.16,1,0.3,1); }
.menu-panel.open { pointer-events: auto; opacity: 1; transform: translateY(0); }
.menu-panel a { font-size: 15px; font-weight: 400; letter-spacing: -0.01em; }

.right-pill { display: flex; align-items: center; gap: 8px; background: #F4F4F6; border-radius: 9999px; padding: 4px; }
.dots-btn { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 50%; background: #000; border: none; cursor: pointer; flex-shrink: 0; }
.right-label { display: none; font-size: 11px; font-weight: 500; color: #000; padding-right: 8px; }

/* ---- Scroll hint ---- */
.scroll-hint { position: absolute; z-index: 35; right: 16px; bottom: 150px; display: flex; align-items: center; pointer-events: none; transition: opacity 0.5s cubic-bezier(0.16,1,0.3,1); }
.scroll-hint.hide { opacity: 0; }
.scroll-hint-inner { display: flex; align-items: center; gap: 9px; padding: 8px 14px 8px 12px; background: rgba(255,255,255,0.72); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border: 1px solid rgba(0,0,0,0.1); border-radius: 9999px; box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.mouse { position: relative; display: block; width: 15px; height: 22px; border: 1.5px solid rgba(0,0,0,0.55); border-radius: 8px; }
.mouse-dot { position: absolute; top: 3px; left: 50%; margin-left: -1.5px; width: 3px; height: 5px; border-radius: 2px; background: #000; animation: nk-scrollcue 1.8s cubic-bezier(0.16,1,0.3,1) infinite; }
.scroll-hint-label { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(0,0,0,0.6); font-weight: 500; }

/* ---- Hero footer ---- */
.footer { position: relative; z-index: 30; margin-top: auto; display: flex; flex-direction: column; justify-content: space-between; align-items: flex-start; gap: 28px; padding: 80px 16px 24px; background: linear-gradient(to top, #ffffff 0%, rgba(255,255,255,0.8) 50%, transparent 100%); animation: nk-up20 1s cubic-bezier(0.16,1,0.3,1) 0.5s both; }
.footer-left { display: flex; flex-direction: column; gap: 20px; max-width: 680px; }
.subtitle { display: flex; align-items: center; gap: 8px; animation: nk-up16 0.8s cubic-bezier(0.16,1,0.3,1) 0.6s both; }
.subtitle .dot { width: 8px; height: 8px; border-radius: 50%; background: #000; flex-shrink: 0; animation: nk-pulse 2.6s ease-in-out infinite; }
.subtitle span:last-child { font-size: 13px; color: rgba(0,0,0,0.55); }
.hero-heading { margin: 0; font-weight: 300; font-size: clamp(2rem, 8vw, 4.5rem); letter-spacing: -0.03em; line-height: 1; animation: nk-up20 0.8s cubic-bezier(0.16,1,0.3,1) 0.8s both; }
.btn-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; animation: nk-up16 0.8s cubic-bezier(0.16,1,0.3,1) 1s both; }
.footer-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-start; animation: nk-up16 0.8s cubic-bezier(0.16,1,0.3,1) 1s both; }
.tag { font-size: 11px; font-weight: 500; color: #000; background: #fff; border: 1px solid rgba(0,0,0,0.12); border-radius: 9999px; padding: 7px 14px; }

/* ---- Buttons ---- */
.btn { font-size: 13px; font-weight: 500; border-radius: 9999px; cursor: pointer; font-family: inherit; padding: 12px 22px; border: none; transition: transform 0.35s cubic-bezier(0.16,1,0.3,1), box-shadow 0.35s, background 0.35s, color 0.35s; }
.btn-dark { background: #000; color: #fff; }
.btn-dark:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,0.28); }
.btn-ghost { background: transparent; color: #000; border: 1px solid rgba(0,0,0,0.35); }
.btn-ghost:hover { transform: translateY(-2px); background: #000; color: #fff; }
.btn-light { background: #fff; color: #000; padding: 14px 26px; }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(255,255,255,0.25); }
.btn-dark-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.35); padding: 14px 26px; }
.btn-dark-ghost:hover { transform: translateY(-2px); background: #fff; color: #000; }

/* ---- Sections ---- */
.section { position: relative; z-index: 2; background: #fff; padding: clamp(80px,12vh,160px) clamp(16px,4vw,64px); }
.section-dark { background: #000; color: #fff; }
.container { max-width: 1200px; margin: 0 auto; }
.kicker { display: flex; align-items: center; gap: 8px; margin-bottom: 28px; }
.kicker span:last-child { font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase; color: rgba(0,0,0,0.5); font-weight: 500; }
.section-dark .kicker span:last-child { color: rgba(255,255,255,0.55); }
.kdot { width: 6px; height: 6px; border-radius: 50%; background: #000; animation: nk-pulse 2.6s ease-in-out infinite; }
.kdot.light { background: #fff; }
.h2 { margin: 0; font-weight: 300; font-size: clamp(2rem,5vw,3.75rem); letter-spacing: -0.03em; line-height: 1.05; max-width: 900px; }
.lead { margin: 28px 0 0; font-size: clamp(15px,1.4vw,18px); line-height: 1.6; color: rgba(0,0,0,0.6); max-width: 640px; }

.grid-3 { display: grid; grid-template-columns: 1fr; gap: 32px; }
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 36px; }
.feature { border-top: 1px solid rgba(0,0,0,0.12); padding-top: 22px; }
.feature .num { font-size: 12px; color: rgba(0,0,0,0.4); font-weight: 500; }
.feature h3 { margin: 14px 0 8px; font-size: 18px; font-weight: 500; letter-spacing: -0.01em; }
.feature p { margin: 0; font-size: 14px; line-height: 1.6; color: rgba(0,0,0,0.55); }
.cap { border-top: 1px solid rgba(255,255,255,0.18); padding-top: 24px; }
.cap h3 { margin: 0 0 10px; font-size: clamp(20px,2vw,26px); font-weight: 400; letter-spacing: -0.02em; }
.cap p { margin: 0; font-size: 14px; line-height: 1.6; color: rgba(255,255,255,0.55); }
.step .big-num { display: block; font-weight: 300; font-size: clamp(2.5rem,6vw,4.5rem); letter-spacing: -0.04em; line-height: 1; }
.step h3 { margin: 18px 0 8px; font-size: 18px; font-weight: 500; }
.step p { margin: 0; font-size: 14px; line-height: 1.6; color: rgba(0,0,0,0.55); max-width: 320px; }

.contact-inner { display: flex; flex-direction: column; align-items: flex-start; gap: 36px; }
.foot-bar { display: flex; align-items: center; gap: 10px; margin-top: 24px; border-top: 1px solid rgba(255,255,255,0.15); padding-top: 28px; width: 100%; }
.foot-brand { font-size: 14px; font-weight: 600; letter-spacing: -0.01em; }
.foot-year { margin-left: auto; font-size: 12px; color: rgba(255,255,255,0.4); }

[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1); }
[data-reveal].in { opacity: 1; transform: translateY(0); }

/* ---- Contact modal ---- */
.overlay { position: fixed; inset: 0; z-index: 100; display: none; align-items: center; justify-content: center; padding: 20px; background: rgba(0,0,0,0.5); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }
.overlay.open { display: flex; }
.card { position: relative; width: 100%; max-width: 460px; background: #fff; color: #000; border-radius: 24px; padding: 32px 24px 28px; box-shadow: 0 40px 100px rgba(0,0,0,0.35); animation: nk-up16 0.5s cubic-bezier(0.16,1,0.3,1) both; }
.card-close { position: absolute; top: 18px; right: 18px; width: 30px; height: 30px; border-radius: 50%; border: 1px solid rgba(0,0,0,0.12); background: #fff; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; }
.form-title { margin: 0 0 22px; font-weight: 300; font-size: clamp(1.6rem,3.5vw,2.2rem); letter-spacing: -0.02em; line-height: 1.05; }
#contact-form input, #contact-form textarea { width: 100%; padding: 12px 14px; border: 1px solid rgba(0,0,0,0.15); border-radius: 12px; font-family: inherit; font-size: 14px; margin-bottom: 12px; outline: none; transition: border-color 0.25s; }
#contact-form input:focus, #contact-form textarea:focus { border-color: rgba(0,0,0,0.6); }
#contact-form textarea { resize: vertical; }
.form-submit { width: 100%; padding: 14px; margin-top: 6px; }
.form-error { color: #c0261a; font-size: 13px; min-height: 18px; margin-bottom: 6px; }
.form-success { display: none; flex-direction: column; align-items: flex-start; padding: 8px 0; }
.form-success.show { display: flex; }
.form-body-hidden { display: none; }
.check { display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px; border-radius: 50%; background: #000; margin-bottom: 20px; }
.form-success p { margin: 0 0 24px; font-size: 14px; line-height: 1.6; color: rgba(0,0,0,0.55); }

/* ---- Desktop ---- */
@media (min-width: 768px) {
  .nav { padding: 24px 32px; }
  .brand { display: inline; }
  .menu-btn { height: 32px; padding: 4px 12px 4px 4px; }
  .menu-btn-icon { }
  .tags-pill { display: flex; }
  .menu-panel { top: 72px; left: 32px; }
  .right-pill { padding: 4px; }
  .dots-btn { width: 32px; height: 32px; }
  .right-label { display: inline; }
  .scroll-hint { right: 32px; bottom: 96px; }
  .footer { flex-direction: row; align-items: flex-end; gap: 32px; padding: 80px 32px 32px; }
  .hero-heading { font-size: clamp(2.5rem, 5.5vw, 4.5rem); }
  .footer-tags { justify-content: flex-end; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); gap: 48px; }
  .grid-2 { grid-template-columns: repeat(2, 1fr); gap: 48px 56px; }
  .card { padding: 40px 40px 36px; }
}