:root {
  --bg: #FAF6F1; --bg2: #F2ECE4; --dark: #1A1714; --dark2: #252219;
  --text: #1A1714; --muted: #6B6560; --light: #FAF6F1;
  --accent: #C4552D; --accent-h: #A8441F; --accent-soft: #E8D5CC;
  --green: #2D5E40; --green-s: #D4E4D9;
  --gold: #B8943E; --gold-s: #F0E8D4;
  --border: #E0D8CE; --border-d: #3A352E;
  --card: #FFF; --card-d: #2A2520;
  --ff: 'Noto Sans JP', sans-serif;
  --fd: 'Instrument Serif', serif;
  --fm: 'JetBrains Mono', monospace;
  --ease: cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-font-smoothing:antialiased}
body{font-family:var(--ff);color:var(--text);background:var(--bg);line-height:1.7;overflow-x:hidden}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
em{font-family:var(--fd);font-style:italic;color:var(--accent)}
strong{font-weight:600}

/* === Buttons === */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:8px;font-family:var(--ff);font-size:.95rem;font-weight:500;cursor:pointer;transition:all .3s var(--ease);border:none}
.btn-primary{background:var(--accent);color:var(--light)}
.btn-primary:hover{background:var(--accent-h);transform:translateY(-1px);box-shadow:0 8px 24px rgba(196,85,45,.3)}
.btn-ghost{background:transparent;color:var(--text);border:1.5px solid var(--border)}
.btn-ghost:hover{border-color:var(--text);transform:translateY(-1px)}
.btn-full{width:100%}
.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;margin-right:8px}
@keyframes spin{to{transform:rotate(360deg)}}

/* === Section helpers === */
.section-tag{display:inline-block;font-family:var(--fm);font-size:.73rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);padding:6px 16px;border-radius:100px;margin-bottom:20px}
.section-title{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:700;line-height:1.3;letter-spacing:-.02em;margin-bottom:16px}
.section-desc{font-size:1.05rem;color:var(--muted);max-width:600px;line-height:1.8}

/* === Nav === */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:16px 0;transition:all .4s var(--ease)}
.nav.scrolled{background:rgba(250,246,241,.92);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:12px 0}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:10px}
.logo-icon{font-size:1.4rem;color:var(--accent)}
.logo-text{font-weight:700;font-size:1.1rem;letter-spacing:-.02em}
.logo-sub{font-weight:400;color:var(--muted);margin-left:4px}
.nav-links{display:flex;align-items:center;gap:28px;font-size:.88rem}
.nav-links a:hover{color:var(--accent)}
.nav-cta{background:var(--accent);color:var(--light)!important;padding:10px 22px;border-radius:8px;font-weight:500}
.nav-cta:hover{background:var(--accent-h)!important}

/* === Hero === */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:100px 24px 60px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-grain{position:absolute;inset:0;opacity:.4;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E")}
.hero-gradient{position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 20% 80%,rgba(196,85,45,.08) 0%,transparent 60%),radial-gradient(ellipse 60% 50% at 80% 20%,rgba(45,94,64,.06) 0%,transparent 50%)}
.hero-inner{position:relative;z-index:1;max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 380px;gap:64px;align-items:center}
.hero-badge{display:inline-block;font-family:var(--fm);font-size:.73rem;letter-spacing:.1em;color:var(--green);background:var(--green-s);padding:8px 20px;border-radius:100px;margin-bottom:28px;animation:fadeUp .8s var(--ease) both}
.hero-title{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:900;line-height:1.15;letter-spacing:-.03em;margin-bottom:24px}
.hero-line{display:block;animation:fadeUp .8s var(--ease) both}
.hero-line:nth-child(1){animation-delay:.1s}
.hero-line:nth-child(2){animation-delay:.2s}
.hero-line:nth-child(3){animation-delay:.3s}
.hero-line-accent{color:var(--accent)}
.hero-desc{font-size:1.08rem;color:var(--muted);line-height:1.9;margin-bottom:36px;animation:fadeUp .8s var(--ease) .4s both}
.hero-desc strong{color:var(--text)}
.hero-actions{display:flex;gap:16px;animation:fadeUp .8s var(--ease) .5s both}

/* Phone Mock */
.hero-phone{animation:fadeUp .8s var(--ease) .3s both}
.phone-frame{background:var(--dark);border-radius:28px;padding:12px;width:100%;max-width:360px;box-shadow:0 32px 64px rgba(0,0,0,.18);position:relative;overflow:hidden}
.phone-notch{width:120px;height:28px;background:var(--dark);border-radius:0 0 16px 16px;margin:0 auto 8px;position:relative;z-index:2}
.phone-header{display:flex;align-items:center;gap:8px;padding:8px 16px 10px;font-size:.78rem;color:var(--light);border-bottom:1px solid var(--border-d)}
.phone-header-icon{color:var(--accent);font-size:1rem}
.phone-header-name{font-weight:600;flex:1}
.phone-header-time{color:var(--muted);font-family:var(--fm);font-size:.68rem}
.phone-body{padding:12px 12px 20px}
.phone-msg{background:var(--card-d);border-radius:14px;padding:16px;font-size:.78rem;color:#ccc;line-height:1.7}
.phone-msg-head{font-family:var(--fm);font-size:.7rem;color:var(--gold);margin-bottom:12px}
.phone-msg-row{display:flex;align-items:baseline;gap:8px}
.phone-msg-big span:first-child{color:var(--muted);font-size:.72rem}
.phone-msg-big strong{font-size:1.4rem;color:var(--light);font-weight:900;letter-spacing:-.02em}
.phone-msg-tag{font-family:var(--fm);font-size:.62rem;padding:2px 8px;border-radius:100px}
.tag-up{background:rgba(45,94,64,.3);color:#8FD4A4}
.phone-msg-divider{height:1px;background:var(--border-d);margin:10px 0}
.phone-msg-sub{font-size:.72rem;font-weight:600;color:var(--light);margin-bottom:6px}
.phone-bar-row{display:flex;align-items:center;gap:6px;font-family:var(--fm);font-size:.65rem;color:var(--muted);margin-bottom:3px}
.phone-bar-row span:first-child{width:32px;text-align:right}
.phone-bar-row span:last-child{width:30px}
.phone-bar{flex:1;height:6px;background:rgba(255,255,255,.08);border-radius:3px;overflow:hidden}
.phone-bar-fill{height:100%;background:var(--accent);border-radius:3px;transition:width 1s var(--ease)}
.phone-msg-item{display:flex;gap:6px;align-items:baseline;margin-bottom:2px}
.phone-msg-item strong{color:var(--light)}
.phone-msg-delta{font-family:var(--fm);font-size:.6rem;color:var(--green);background:rgba(45,94,64,.2);padding:1px 6px;border-radius:100px}
.phone-msg-alert{margin-top:10px;padding:8px 12px;background:rgba(196,85,45,.15);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;font-size:.72rem;color:#E8A88A}

/* === Pain Points === */
.pain{padding:100px 0;background:var(--dark);color:var(--light)}
.pain .section-tag{background:rgba(196,85,45,.2);color:#E8A88A}
.pain .section-title{color:var(--light);margin-bottom:48px}
.pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:56px}
.pain-card{background:var(--card-d);border:1px solid var(--border-d);border-radius:14px;padding:28px;position:relative}
.pain-quote{font-family:var(--fd);font-size:3rem;color:var(--accent);opacity:.5;line-height:1;margin-bottom:-8px}
.pain-card p{font-size:.95rem;color:#C5BFB6;line-height:1.8}
.pain-card strong{color:var(--light)}
.pain-label{display:inline-block;margin-top:14px;font-family:var(--fm);font-size:.68rem;color:var(--accent);background:rgba(196,85,45,.15);padding:4px 12px;border-radius:100px}
.pain-bottom{text-align:center;padding-top:8px}
.pain-arrow{font-size:2rem;color:var(--accent);margin-bottom:16px}
.pain-bottom h3{font-size:1.4rem;color:var(--light);margin-bottom:12px}
.pain-bottom p{color:#A09A92;font-size:1rem;line-height:1.8}

/* === Values === */
.values{padding:100px 0}
.values-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.value-card{background:var(--card);border:1.5px solid var(--border);border-radius:16px;padding:36px}
.value-num{font-family:var(--fm);font-size:.8rem;color:var(--accent);margin-bottom:12px}
.value-card h3{font-size:1.3rem;font-weight:700;margin-bottom:14px}
.value-voice{font-size:.9rem;color:var(--muted);font-style:italic;padding:14px 18px;background:var(--bg2);border-radius:10px;margin-bottom:20px;border-left:3px solid var(--accent-soft)}
.value-items{display:flex;flex-direction:column;gap:10px}
.value-item{display:flex;align-items:center;gap:10px;font-size:.92rem}
.vi-check{color:var(--green);font-weight:700}

/* === Diff === */
.diff{padding:100px 0;background:var(--bg2)}
.diff .section-title{margin-bottom:8px}
.diff .section-desc{margin-bottom:48px}
.diff-compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:16px;overflow:hidden;border:1.5px solid var(--border)}
.diff-col{background:var(--card)}
.diff-old{border-right:1.5px solid var(--border)}
.diff-header{padding:20px 24px;font-weight:700;font-size:1rem;border-bottom:1.5px solid var(--border);color:var(--muted)}
.diff-header-accent{color:var(--accent);background:rgba(196,85,45,.04)}
.diff-body{padding:8px 0}
.diff-row{padding:10px 24px;font-size:.88rem;display:flex;align-items:center;gap:10px}
.diff-row::before{font-size:.85rem;width:20px;text-align:center;flex-shrink:0}
.diff-yes::before{content:'✓';color:var(--green)}
.diff-no{color:var(--muted);opacity:.5}
.diff-no::before{content:'✗';color:#C4552D80}
.diff-new .diff-yes{font-weight:500}

/* === Demo === */
.demo{padding:100px 0}
.demo .section-title{margin-bottom:8px}
.demo .section-desc{margin-bottom:48px}
.demo-app{max-width:900px;margin:0 auto}
.demo-input{background:var(--card);border:1.5px solid var(--border);border-radius:16px;padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.demo-field{display:flex;flex-direction:column;gap:6px}
.demo-field-full{grid-column:1/-1}
.demo-field label{font-size:.78rem;font-weight:500;color:var(--muted)}
.demo-field input{font-family:var(--ff);font-size:.92rem;padding:12px 14px;border:1.5px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text);outline:none;transition:border .2s}
.demo-field input:focus{border-color:var(--accent)}
.demo-input .btn{grid-column:1/-1;margin-top:4px}
.demo-results{margin-top:28px;display:flex;flex-direction:column;gap:20px;animation:fadeUp .6s var(--ease)}
.rcard{background:var(--card);border:1.5px solid var(--border);border-radius:14px;overflow:hidden}
.rcard-dark{background:var(--dark);border-color:var(--border-d)}
.rcard-dark .rcard-h{color:var(--light);border-color:var(--border-d)}
.rcard-h{display:flex;align-items:center;gap:10px;padding:18px 22px;font-size:.95rem;font-weight:600;border-bottom:1px solid var(--border)}
.rcard-b{padding:20px 22px;font-size:.9rem;line-height:1.8;color:var(--muted)}
.rcard-dark .rcard-b{color:#A09A92}

/* param items */
.p-item{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;padding:12px 16px;background:var(--bg);border-radius:10px;border:1px solid var(--border);margin-bottom:8px;animation:fadeUp .4s var(--ease) both}
.p-tier{font-family:var(--fm);font-size:.62rem;font-weight:500;padding:4px 10px;border-radius:100px;white-space:nowrap}
.p-t1{background:#FDEAE4;color:var(--accent)}.p-t2{background:var(--green-s);color:var(--green)}.p-t3{background:var(--gold-s);color:var(--gold)}.p-t4{background:var(--bg2);color:var(--muted)}
.p-name{font-size:.85rem;font-weight:500}
.p-why{font-size:.76rem;color:var(--muted);margin-top:2px}
.p-src{font-family:var(--fm);font-size:.68rem;color:var(--muted);text-align:right}

/* forecast in demo */
.fc{color:#CCC5BB;font-size:.84rem;line-height:1.9}
.fc-head{font-family:var(--fm);font-size:.72rem;color:var(--gold);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border-d)}
.fc strong{color:var(--light)}
.fc-row{margin-bottom:2px}
.fc-bar-row{display:flex;align-items:center;gap:6px;font-family:var(--fm);font-size:.72rem;margin-bottom:4px}
.fc-bar-row span:first-child{width:48px;text-align:right;color:var(--muted)}
.fc-bar-row span:last-child{width:36px;color:var(--light)}
.fc-bar{flex:1;height:8px;background:rgba(255,255,255,.06);border-radius:4px;overflow:hidden}
.fc-bar-fill{height:100%;background:var(--accent);border-radius:4px}
.fc-section{margin-top:14px}
.fc-alert{margin-top:14px;padding:10px 14px;background:rgba(196,85,45,.12);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;font-size:.8rem;color:#E8A88A}

/* sources */
.src-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}
.src-item{padding:16px;background:var(--bg);border-radius:10px;border:1px solid var(--border);text-align:center}
.src-icon{font-size:1.4rem;margin-bottom:6px}
.src-name{font-size:.84rem;font-weight:600;margin-bottom:3px}
.src-desc{font-size:.72rem;color:var(--muted)}

/* === Pricing === */
.pricing{padding:100px 0;background:var(--bg2)}
.pricing .section-title{text-align:center;margin-bottom:48px}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:960px;margin:0 auto}
.pricing-card{background:var(--card);border:1.5px solid var(--border);border-radius:16px;padding:32px 24px;display:flex;flex-direction:column;position:relative}
.pricing-pop{border-color:var(--accent);box-shadow:0 8px 32px rgba(196,85,45,.12);transform:scale(1.02)}
.pricing-pop-label{position:absolute;top:-12px;left:50%;transform:translateX(-50%);font-family:var(--fm);font-size:.65rem;font-weight:500;background:var(--accent);color:#fff;padding:4px 16px;border-radius:100px}
.pricing-tag{font-family:var(--fm);font-size:.7rem;color:var(--muted);margin-bottom:12px;letter-spacing:.08em}
.pricing-price{font-size:2.2rem;font-weight:900;letter-spacing:-.03em;margin-bottom:4px}
.pricing-price span{font-size:.88rem;font-weight:400;color:var(--muted)}
.pricing-desc{font-size:.85rem;color:var(--muted);margin-bottom:24px}
.pricing-list{list-style:none;flex:1;margin-bottom:24px}
.pricing-list li{font-size:.85rem;padding:7px 0;border-bottom:1px solid var(--border);color:var(--muted)}
.pricing-list li:last-child{border:none}
.pricing-list li strong{color:var(--text)}

/* === Waitlist === */
.waitlist{padding:100px 0;background:var(--dark);color:var(--light)}
.waitlist-inner{max-width:520px;margin:0 auto;text-align:center}
.waitlist .section-title{color:var(--light)}
.waitlist .section-desc{color:#A09A92;margin:0 auto 36px}
.waitlist .section-desc strong{color:var(--light)}
.wl-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
.wl-fields input{font-family:var(--ff);font-size:.88rem;padding:13px 14px;border:1.5px solid var(--border-d);border-radius:8px;background:var(--card-d);color:var(--light);outline:none;transition:border .2s}
.wl-fields input::placeholder{color:#6B6560}
.wl-fields input:focus{border-color:var(--accent)}
.wl-note{font-size:.75rem;color:#6B6560;margin-top:10px}
.wl-ok{width:52px;height:52px;background:var(--green);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin:0 auto 14px}

/* === Footer === */
.footer{padding:36px 0;background:var(--dark);border-top:1px solid var(--border-d)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--light)}
.footer-brand .logo-sub{color:#6B6560}
.footer-links{display:flex;gap:20px;font-size:.78rem;color:#6B6560}
.footer-links a:hover{color:var(--light)}
.footer-copy{width:100%;text-align:center;font-size:.72rem;color:#4A4540;margin-top:12px}

/* === Animations === */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* === Responsive === */
@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-phone{display:flex;justify-content:center}
  .hero-actions{justify-content:center}
  .pain-grid{grid-template-columns:1fr}
  .values-grid{grid-template-columns:1fr}
  .diff-compare{grid-template-columns:1fr}
  .diff-old{border-right:none;border-bottom:1.5px solid var(--border)}
  .pricing-grid{grid-template-columns:1fr;max-width:400px}
  .pricing-pop{transform:none}
  .nav-links a:not(.nav-cta){display:none}
}
@media(max-width:600px){
  .demo-input{grid-template-columns:1fr}
  .hero-desc br{display:none}
  .wl-fields{grid-template-columns:1fr}
  .footer-inner{justify-content:center;text-align:center}
  .footer-links{justify-content:center}
}