/* ═══════════════════════════════════════════════════════
   NEXUS Landing — White Refined Theme
   Inspired by: ambient orbs, score rings, editorial clarity
   ═══════════════════════════════════════════════════════ */

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#fafbfe;--bg2:#f0f2f8;--card:#ffffff;
  --text:#1a1d2e;--text2:#5c6478;--text3:#8891a5;
  --border:rgba(0,0,0,.08);--border2:rgba(0,0,0,.05);
  --accent:#1a56db;--accent2:#2d6ce8;--accent-soft:rgba(26,86,219,.06);
  --green:#059669;--red:#dc2626;--gold:#d97706;
  --radius:14px;--radius-sm:8px;--radius-lg:20px;
  --shadow-sm:0 1px 3px rgba(0,0,0,.04),0 1px 2px rgba(0,0,0,.03);
  --shadow:0 4px 16px rgba(0,0,0,.05),0 1px 3px rgba(0,0,0,.04);
  --shadow-lg:0 8px 32px rgba(0,0,0,.07),0 2px 8px rgba(0,0,0,.04);
  --font:'DM Sans','Noto Sans JP',system-ui,sans-serif;
  --font-display:'Instrument Serif','Noto Sans JP',Georgia,serif;
  --font-mono:'JetBrains Mono','Noto Sans JP',monospace;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
::selection{background:rgba(26,86,219,.12);color:var(--text)}

/* --- Ambient Background --- */
.ambient-bg{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.ambient-orb{position:absolute;border-radius:50%;filter:blur(120px);opacity:.35;animation:orbFloat 20s ease-in-out infinite}
.ambient-orb--1{width:600px;height:600px;background:radial-gradient(circle,rgba(26,86,219,.18),transparent 70%);top:-10%;left:-5%;animation-delay:0s}
.ambient-orb--2{width:500px;height:500px;background:radial-gradient(circle,rgba(99,102,241,.12),transparent 70%);bottom:10%;right:-8%;animation-delay:-7s;animation-duration:25s}
.ambient-orb--3{width:400px;height:400px;background:radial-gradient(circle,rgba(5,150,105,.08),transparent 70%);top:40%;left:30%;animation-delay:-14s;animation-duration:30s}
@keyframes orbFloat{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(30px,-20px) scale(1.05)}66%{transform:translate(-20px,15px) scale(.95)}}

/* --- Noise Overlay --- */
.noise-overlay{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.025;
  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)'/%3E%3C/svg%3E");
  background-repeat:repeat;background-size:256px}

/* --- Footer Disclaimer --- */
.footer__disclaimer{width:100%;text-align:center;font-size:10px;color:var(--text3);padding-top:16px;margin-top:12px;border-top:1px solid var(--border2);letter-spacing:.01em;opacity:.6}

/* --- Header --- */
.header{position:sticky;top:0;z-index:99;background:rgba(255,255,255,.88);backdrop-filter:blur(20px) saturate(1.3);border-bottom:1px solid var(--border);transition:box-shadow .3s}
.header--scrolled{box-shadow:var(--shadow-sm)}
.header__inner{max-width:1200px;margin:0 auto;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between}
.header__logo{display:flex;align-items:center;gap:10px}
.header__logo-mark{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--accent),#4f46e5);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;letter-spacing:-.02em}
.header__logo-text{font-weight:700;font-size:18px;letter-spacing:-.03em;color:var(--text)}
.header__logo-sub{font-size:10px;color:var(--text3);letter-spacing:.06em;text-transform:uppercase;display:none}
@media(min-width:768px){.header__logo-sub{display:block}}
.header__nav{display:none;align-items:center;gap:4px}
@media(min-width:768px){.header__nav{display:flex}}
.header__nav-link{padding:6px 14px;font-size:13px;font-weight:500;color:var(--text2);border-radius:6px;transition:all .2s;letter-spacing:.01em}
.header__nav-link:hover,.header__nav-link--active{color:var(--accent);background:var(--accent-soft)}
.header__actions{display:flex;align-items:center;gap:12px}
.header__lang{padding:4px 10px;border-radius:6px;border:1px solid var(--border);font-size:12px;font-weight:600;color:var(--text2);cursor:pointer;transition:all .2s}
.header__lang:hover{border-color:var(--accent);color:var(--accent)}
.header__menu-btn{display:flex;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:4px}
.header__menu-btn span{width:18px;height:1.5px;background:var(--text);border-radius:2px;transition:all .2s}
@media(min-width:768px){.header__menu-btn{display:none}}

/* --- Ticker --- */
.ticker{position:relative;z-index:10;background:var(--card);border-bottom:1px solid var(--border2);overflow:hidden;height:36px}
.ticker__track{display:flex;align-items:center;height:100%;overflow:hidden}
.ticker__items{display:flex;gap:32px;animation:tickerScroll 30s linear infinite;white-space:nowrap;padding:0 16px}
.ticker__item{display:inline-flex;align-items:center;gap:8px;font-size:12px}
.ticker__pair{font-weight:600;color:var(--text);font-family:var(--font-mono);letter-spacing:.02em}
.ticker__val{color:var(--text2);font-family:var(--font-mono)}
.ticker__change{font-weight:600;font-family:var(--font-mono);font-size:11px}
.ticker__change--up{color:var(--green)}
.ticker__change--down{color:var(--red)}
@keyframes tickerScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* --- Hero --- */
.hero{position:relative;z-index:10;padding:80px 24px 60px;text-align:center;overflow:hidden}
.hero__inner{max-width:800px;margin:0 auto;position:relative}
.hero__badge{display:inline-block;padding:6px 16px;border-radius:20px;background:linear-gradient(135deg,var(--accent-soft),rgba(99,102,241,.06));border:1px solid rgba(26,86,219,.12);font-size:12px;font-weight:600;color:var(--accent);letter-spacing:.04em;margin-bottom:24px}
.hero__title{font-family:var(--font);font-weight:800;line-height:1.1;letter-spacing:-.04em;margin-bottom:20px}
.hero__title-line{display:block}
.hero__title-line--1{font-size:clamp(32px,6vw,56px);color:var(--text)}
.hero__title-line--2{font-size:clamp(28px,5vw,48px);color:var(--text2)}
.hero__title-em{background:linear-gradient(135deg,var(--accent),#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero__desc{font-size:16px;color:var(--text2);line-height:1.7;max-width:520px;margin:0 auto 40px}
.hero__stats{display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap}
.hero__stat{text-align:center}
.hero__stat-num{display:block;font-size:36px;font-weight:800;font-family:var(--font-mono);color:var(--accent);letter-spacing:-.04em;line-height:1}
.hero__stat-label{display:block;font-size:11px;color:var(--text3);text-transform:uppercase;letter-spacing:.08em;margin-top:4px}
.hero__stat-divider{width:1px;height:32px;background:var(--border)}
.hero__grid-lines{position:absolute;inset:0;z-index:-1;pointer-events:none;display:flex;justify-content:space-between;padding:0 10%}
.hero__grid-line{width:1px;height:100%;background:linear-gradient(to bottom,transparent,var(--border2) 30%,var(--border2) 70%,transparent);opacity:.6}

/* --- Trust Signals --- */
.trust{position:relative;z-index:10;padding:0 24px 48px}
.trust__inner{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
@media(max-width:768px){.trust__inner{grid-template-columns:repeat(2,1fr)}}
.trust__item{background:var(--card);padding:20px 16px;display:flex;align-items:flex-start;gap:12px;transition:background .3s}
.trust__item:hover{background:var(--accent-soft)}
.trust__icon{flex-shrink:0;width:36px;height:36px;border-radius:8px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}
.trust__label{display:block;font-weight:600;font-size:13px;color:var(--text);letter-spacing:.01em}
.trust__sub{display:block;font-size:11px;color:var(--text3);line-height:1.5;margin-top:2px}

/* --- Filter Bar --- */
.filter-bar{position:sticky;top:60px;z-index:50;background:rgba(250,251,254,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border2);padding:12px 24px}
.filter-bar__inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:8px}
.filter-tab{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border-radius:20px;border:1px solid var(--border);background:var(--card);font-size:13px;font-weight:500;color:var(--text2);cursor:pointer;transition:all .2s;font-family:var(--font)}
.filter-tab:hover{border-color:var(--accent);color:var(--accent)}
.filter-tab--active{background:var(--accent);color:#fff;border-color:var(--accent)}
.filter-tab__count{font-size:11px;font-weight:600;opacity:.7}

/* --- Rankings --- */
.rankings{position:relative;z-index:10;padding:32px 24px 48px}
.rankings__inner{max-width:1000px;margin:0 auto;display:flex;flex-direction:column;gap:16px}

/* --- Rank Item --- */
.rank-item{display:flex;gap:20px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:all .3s;position:relative;overflow:hidden}
.rank-item::before{content:'';position:absolute;top:0;left:0;width:3px;height:100%;background:var(--accent);opacity:0;transition:opacity .3s}
.rank-item:hover{box-shadow:var(--shadow-lg);border-color:rgba(26,86,219,.15);transform:translateY(-2px)}
.rank-item:hover::before{opacity:1}
.rank-item--top{border-color:rgba(26,86,219,.12);background:linear-gradient(135deg,var(--card),rgba(26,86,219,.015))}
.rank-item--hidden{display:none}
@media(max-width:768px){.rank-item{flex-direction:column;gap:16px;padding:20px}}

/* Position & Score Ring */
.rank-item__position{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:80px}
.rank-item__num{font-family:var(--font-mono);font-size:14px;font-weight:700;color:var(--text3);letter-spacing:.04em}
.rank-item__score-ring{position:relative;width:72px;height:72px}
.rank-item__score-ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.rank-item__score-ring circle:first-child{stroke:var(--bg2)}
.rank-item__score-circle{stroke:var(--accent);transition:stroke-dashoffset 1.5s ease}
.rank-item__score-val{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:20px;font-weight:700;color:var(--accent)}

/* Body */
.rank-item__body{flex:1;min-width:0}
.rank-item__header{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.rank-item__photo{width:44px;height:44px;border-radius:10px;background:var(--bg2);display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--text3);flex-shrink:0;border:1px solid var(--border)}
.rank-item__title-block{flex:1;min-width:0}
.rank-item__name{font-size:18px;font-weight:700;color:var(--text);letter-spacing:-.02em;line-height:1.2}
.rank-item__since{font-size:11px;color:var(--text3);font-family:var(--font-mono)}
.rank-item__badges{display:flex;gap:4px;margin-top:4px;flex-wrap:wrap}
.rank-item__badge{font-size:10px;font-weight:600;padding:2px 6px;border-radius:4px;letter-spacing:.02em}
.rank-item__badge--license{background:rgba(5,150,105,.08);color:var(--green)}
.rank-item__tag{padding:4px 10px;border-radius:6px;font-size:11px;font-weight:600;background:var(--accent-soft);color:var(--accent);white-space:nowrap}

/* Specs Grid */
.rank-item__specs{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--border2);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:14px}
@media(max-width:768px){.rank-item__specs{grid-template-columns:repeat(3,1fr)}}
.rank-item__spec{background:var(--bg);padding:10px 12px;text-align:center}
.rank-item__spec-label{display:block;font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:2px}
.rank-item__spec-val{display:block;font-size:14px;font-weight:700;color:var(--text);font-family:var(--font-mono);letter-spacing:-.01em}
.rank-item__spec-val--highlight{color:var(--accent)}
.rank-item__spec-val--muted{color:var(--text3)}

/* Features */
.rank-item__features{display:flex;gap:6px;margin-bottom:16px;flex-wrap:wrap}
.rank-item__feat{padding:4px 10px;border-radius:6px;font-size:11px;font-weight:500;background:var(--bg2);color:var(--text2);border:1px solid var(--border2)}

/* Actions */
.rank-item__actions{display:flex;gap:8px}
.rank-item__btn{padding:8px 20px;border-radius:8px;font-size:13px;font-weight:600;transition:all .2s;text-align:center;letter-spacing:.01em}
.rank-item__btn--primary{background:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(26,86,219,.2)}
.rank-item__btn--primary:hover{background:var(--accent2);box-shadow:0 4px 16px rgba(26,86,219,.3);transform:translateY(-1px)}
.rank-item__btn--secondary{background:var(--card);color:var(--accent);border:1px solid rgba(26,86,219,.2)}
.rank-item__btn--secondary:hover{background:var(--accent-soft);border-color:var(--accent)}

/* Load More */
.rankings__load-more{text-align:center;padding:24px}
.load-more-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 32px;border-radius:24px;border:1px solid var(--border);background:var(--card);font-size:14px;font-weight:600;color:var(--text2);cursor:pointer;transition:all .2s;font-family:var(--font)}
.load-more-btn:hover{border-color:var(--accent);color:var(--accent);box-shadow:var(--shadow)}
.load-more-btn svg{transition:transform .2s}
.load-more-btn:hover svg{transform:translateY(2px)}

/* --- FAQ --- */
.faq{position:relative;z-index:10;padding:48px 24px}
.faq__inner{max-width:720px;margin:0 auto}
.faq__title{font-size:28px;font-weight:800;text-align:center;margin-bottom:32px;letter-spacing:-.03em}
.faq__list{display:flex;flex-direction:column;gap:8px}
.faq__item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;transition:border-color .2s}
.faq__item[open]{border-color:rgba(26,86,219,.15)}
.faq__question{padding:16px 20px;font-size:14px;font-weight:600;color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:space-between;list-style:none}
.faq__question::-webkit-details-marker{display:none}
.faq__question::after{content:'+';font-size:18px;color:var(--text3);font-weight:300;transition:transform .2s}
.faq__item[open] .faq__question::after{transform:rotate(45deg);color:var(--accent)}
.faq__answer{padding:0 20px 16px;font-size:14px;color:var(--text2);line-height:1.7}

/* --- Risk Warning --- */
.risk-warning{position:relative;z-index:10;padding:0 24px 48px}
.risk-warning__inner{max-width:720px;margin:0 auto;display:flex;align-items:center;gap:12px;padding:16px 20px;border-radius:var(--radius-sm);background:rgba(220,38,38,.04);border:1px solid rgba(220,38,38,.1)}
.risk-warning__icon{width:28px;height:28px;border-radius:50%;background:rgba(220,38,38,.08);color:var(--red);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-weight:700;font-size:13px}
.risk-warning__text{font-size:12px;color:var(--red);line-height:1.5;opacity:.8}

/* --- Footer --- */
.footer{position:relative;z-index:10;background:var(--bg2);border-top:1px solid var(--border);padding:48px 24px 24px}
.footer__inner{max-width:1000px;margin:0 auto}
.footer__top{display:grid;grid-template-columns:1.2fr 2fr;gap:48px;margin-bottom:40px}
@media(max-width:768px){.footer__top{grid-template-columns:1fr;gap:32px}}
.footer__logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer__logo-mark{width:28px;height:28px;border-radius:7px;background:linear-gradient(135deg,var(--accent),#4f46e5);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}
.footer__logo-text{font-weight:700;font-size:16px;color:var(--text);letter-spacing:-.02em}
.footer__tagline{font-size:13px;color:var(--text3);line-height:1.6}
.footer__links{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:480px){.footer__links{grid-template-columns:repeat(2,1fr)}}
.footer__col-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text3);margin-bottom:12px}
.footer__col{display:flex;flex-direction:column;gap:8px}
.footer__link{font-size:13px;color:var(--text2);transition:color .2s}
.footer__link:hover{color:var(--accent)}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid var(--border);flex-wrap:wrap;gap:12px}
.footer__copy{font-size:11px;color:var(--text3)}
.footer__legal{display:flex;gap:16px}
.footer__legal-link{font-size:11px;color:var(--text3);transition:color .2s}
.footer__legal-link:hover{color:var(--accent)}

/* --- Animations --- */
@keyframes fadeInUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.animate-in{animation:fadeInUp .5s ease both}
.rank-item{opacity:0;transform:translateY(12px);transition:opacity .4s ease,transform .4s ease,box-shadow .3s,border-color .3s}
.rank-item.visible{opacity:1;transform:translateY(0)}

/* --- Responsive --- */
@media(max-width:640px){
  .hero{padding:48px 16px 40px}
  .hero__title-line--1{font-size:28px}
  .hero__title-line--2{font-size:24px}
  .hero__stats{gap:16px}
  .hero__stat-num{font-size:28px}
  .rankings{padding:16px 12px 32px}
  .rank-item{padding:16px}
  .rank-item__position{flex-direction:row;min-width:auto}
  .rank-item__score-ring{width:56px;height:56px}
  .rank-item__name{font-size:16px}
  .filter-bar{padding:8px 12px}
  .footer{padding:32px 16px 16px}
}

/* --- Print --- */
@media print{
  .ambient-bg,.noise-overlay,.ticker,.header,.filter-bar,.warning-banner{display:none}
  .rank-item{break-inside:avoid;border:1px solid #ddd;box-shadow:none}
  body{background:#fff;color:#000}
}