/* Nihon Kefia — site.css */
:root{
  --bg:#F9F7F2; --ink:#1E2530; --muted:#5B6472; --border:#E7E1D5;
  --cream:#F1EBE0; --mist:#F4F6FA; --sky:#BFD6F0; --blossom:#F3D2D5;
  --matcha:#CFE1CC; --gold:#C99A57;
  --serif:'Cormorant Garamond', ui-serif, Georgia, serif;
  --sans:'Inter Tight', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --radius:20px; --shadow:0 30px 80px -40px rgba(30,37,48,.28);
  --gradient-pack: linear-gradient(180deg, var(--sky) 0%, #EBD5E8 55%, var(--blossom) 100%);
  --gradient-hero: radial-gradient(ellipse at 20% 0%, rgba(191,214,240,.55) 0%, transparent 60%),
                    radial-gradient(ellipse at 90% 20%, rgba(243,210,213,.45) 0%, transparent 55%),
                    linear-gradient(180deg, var(--bg) 0%, var(--mist) 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;line-height:1.55}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;letter-spacing:-.015em;line-height:1.1;margin:0 0 .5em;color:var(--ink)}
h1{font-size:clamp(2.4rem,5.5vw,4.4rem)}
h2{font-size:clamp(1.8rem,3.6vw,2.7rem)}
h3{font-size:1.35rem}
p{margin:0 0 1em;color:rgba(30,37,48,.78)}
.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}
.pill{display:inline-block;padding:.35rem .85rem;border-radius:999px;background:var(--cream);color:var(--ink);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase}
.btn{display:inline-flex;align-items:center;gap:.55rem;padding:.95rem 1.6rem;border-radius:999px;font-weight:500;transition:transform .25s,box-shadow .25s,background .25s,border-color .25s;cursor:pointer;border:0;font-family:inherit;font-size:1rem}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 12px 30px -14px rgba(30,37,48,.6)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 40px -18px rgba(30,37,48,.7)}
.btn-outline{background:transparent;color:var(--ink);border:1px solid rgba(30,37,48,.3)}
.btn-outline:hover{background:rgba(30,37,48,.05)}
.surface-cream{background:var(--cream)}
.surface-mist{background:var(--mist)}
.gradient-pack{background:var(--gradient-pack)}
.gradient-hero{background:var(--gradient-hero)}
.muted{color:var(--muted)}
.gold{color:var(--gold)}
.small{font-size:.85rem}
.tiny{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.rounded{border-radius:var(--radius)}
.rounded-3{border-radius:36px}
.shadow-soft{box-shadow:var(--shadow)}
.grid{display:grid;gap:1.5rem}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-5{grid-template-columns:repeat(5,minmax(0,1fr))}
.flex{display:flex}
.items-center{align-items:center}
.justify-between{justify-content:space-between}
.gap-3{gap:.75rem}.gap-4{gap:1rem}.gap-6{gap:1.5rem}
.text-center{text-align:center}
.max-w-2{max-width:640px;margin-inline:auto}
.max-w-3{max-width:820px;margin-inline:auto}
.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.mt-8{margin-top:2rem}.mt-10{margin-top:2.5rem}.mt-12{margin-top:3rem}
.py-16{padding:4rem 0}.py-20{padding:5rem 0}.py-24{padding:6rem 0}
.glass{background:linear-gradient(135deg,rgba(255,255,255,.65),rgba(255,255,255,.25));backdrop-filter:blur(20px) saturate(140%);-webkit-backdrop-filter:blur(20px) saturate(140%);border:1px solid rgba(255,255,255,.5)}

/* Header */
.site-header{position:sticky;top:0;z-index:40;transition:all .3s}
.site-header.scrolled{background:linear-gradient(135deg,rgba(255,255,255,.75),rgba(255,255,255,.35));backdrop-filter:blur(20px) saturate(140%);-webkit-backdrop-filter:blur(20px) saturate(140%);box-shadow:0 10px 30px -20px rgba(30,37,48,.15);border-bottom:1px solid rgba(30,37,48,.08)}
.site-header .row{display:flex;align-items:center;justify-content:space-between;padding:1rem 0}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--serif);font-size:1.35rem}
.nav{display:none;gap:1.75rem;font-size:.9rem}
.nav a{color:rgba(30,37,48,.7)}
.nav a:hover,.nav a.active{color:var(--ink);font-weight:500}
.menu-btn{display:inline-flex;flex-direction:column;gap:4px;padding:.55rem;border:1px solid rgba(30,37,48,.2);border-radius:999px;background:transparent;cursor:pointer}
.menu-btn span{width:16px;height:1.5px;background:var(--ink);display:block}
.mobile-nav{display:none;padding:1rem 0;border-top:1px solid rgba(30,37,48,.08);flex-direction:column;gap:.5rem}
.mobile-nav.open{display:flex}
@media(min-width:1024px){ .nav{display:flex} .menu-btn{display:none} .mobile-nav{display:none!important} }

/* Product visual */
.product-visual{position:relative;aspect-ratio:1/1;max-width:560px;margin:0 auto}
.product-visual .halo{position:absolute;inset:0;border-radius:36px;background:var(--gradient-pack);opacity:.4;filter:blur(60px);transform:scale(.95)}
.product-visual .frame{position:relative;height:100%;width:100%;border-radius:36px;overflow:hidden;background:linear-gradient(180deg,rgba(255,255,255,.6),rgba(255,255,255,.2));display:flex;align-items:center;justify-content:center;padding:1.5rem}
.product-visual .frame::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.65),rgba(255,255,255,.25));backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.5);border-radius:36px;z-index:0}
.product-visual img{position:relative;z-index:1;max-height:100%;max-width:100%;object-fit:contain;filter:drop-shadow(0 30px 60px rgba(30,37,48,.25));animation:float 7s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-14px) rotate(1deg)}}

/* Comparison table */
.compare{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;font-size:.95rem}
.compare th,.compare td{padding:1rem;text-align:left}
.compare thead{background:var(--cream)}
.compare tbody tr{border-top:1px solid rgba(30,37,48,.08)}
.compare .yes{color:var(--gold);font-weight:500}
.compare .no,.compare .maybe{color:var(--muted)}

/* Details / FAQ */
details{border-bottom:1px solid rgba(30,37,48,.1);padding:1.25rem 0;cursor:pointer}
details summary{display:flex;justify-content:space-between;align-items:center;list-style:none;font-weight:500}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";font-size:1.5rem;color:var(--muted);transition:transform .25s}
details[open] summary::after{transform:rotate(45deg)}
details p{margin-top:.75rem;color:var(--muted)}

/* Sticky buy */
.sticky-buy{position:fixed;bottom:0;left:0;right:0;background:rgba(255,255,255,.9);backdrop-filter:blur(20px);border-top:1px solid rgba(30,37,48,.08);padding:.75rem 1.25rem;display:none;align-items:center;justify-content:space-between;gap:1rem;z-index:30;box-shadow:0 -10px 30px -20px rgba(30,37,48,.2)}
.sticky-buy.visible{display:flex}
.sticky-buy .price{font-family:var(--serif);font-size:1.4rem}

/* Footer */
.site-footer{margin-top:6rem;border-top:1px solid rgba(30,37,48,.1);background:var(--cream)}
.site-footer .cols{display:grid;gap:3rem;grid-template-columns:1fr;padding:4rem 0}
@media(min-width:768px){.site-footer .cols{grid-template-columns:repeat(4,1fr)}}
.site-footer ul{list-style:none;padding:0;margin:0;font-size:.9rem;display:flex;flex-direction:column;gap:.5rem}
.site-footer .newsletter form{display:flex;gap:.5rem;margin-top:.75rem}
.site-footer .newsletter input{flex:1;border-radius:999px;padding:.6rem 1rem;border:1px solid rgba(30,37,48,.15);background:rgba(255,255,255,.7);font-family:inherit;font-size:.9rem}
.site-footer .newsletter button{padding:.6rem 1.1rem;font-size:.9rem}
.site-footer .bar{border-top:1px solid rgba(30,37,48,.1)}
.site-footer .bar .row{display:flex;flex-direction:column;gap:.5rem;justify-content:space-between;align-items:center;padding:1.25rem 0;font-size:.75rem;color:var(--muted)}
@media(min-width:640px){.site-footer .bar .row{flex-direction:row}}

/* Popup */
.popup-backdrop{position:fixed;inset:0;background:rgba(30,37,48,.55);display:none;align-items:center;justify-content:center;z-index:100;padding:1.25rem;animation:fadeIn .3s}
.popup-backdrop.open{display:flex}
.popup{background:#fff;border-radius:24px;max-width:440px;width:100%;overflow:hidden;position:relative;box-shadow:0 40px 100px -20px rgba(0,0,0,.35)}
.popup .close{position:absolute;top:.75rem;right:.9rem;background:transparent;border:0;font-size:1.5rem;cursor:pointer;color:var(--muted)}
.popup .head{background:var(--gradient-pack);padding:2rem;text-align:center}
.popup .body{padding:2rem;text-align:center}
.popup input{width:100%;padding:.75rem 1rem;border-radius:999px;border:1px solid rgba(30,37,48,.15);margin-top:1rem;font-family:inherit;font-size:.95rem}
.popup .btn{width:100%;justify-content:center;margin-top:.75rem}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* Responsive helpers */
@media(max-width:900px){
  .g-2,.g-3,.g-4,.g-5{grid-template-columns:1fr}
  .py-24{padding:4rem 0}.py-20{padding:3.5rem 0}
}
@media(min-width:900px){
  .g-2-lg{grid-template-columns:1fr 1fr}
}

/* Utility */
.p-8{padding:2rem}.p-10{padding:2.5rem}.p-12{padding:3rem}
.mb-3{margin-bottom:.75rem}
.stars{color:var(--gold);letter-spacing:.2em}
.divider{height:1px;background:rgba(30,37,48,.08);margin:2rem 0}