/* ============================================================
   NEXUSGATE — style.css
   Dark Japanese UI · Production Ready
   ============================================================ */

:root {
  --bg:      #08080f;
  --bg2:     #0c0c17;
  --bg3:     #101020;
  --card:    #12121e;
  --card2:   #17172a;
  --border:  rgba(255,255,255,0.06);
  --border2: rgba(255,255,255,0.11);
  --pink:    #e040fb;
  --pink2:   #f06292;
  --purple:  #7c4dff;
  --purple2: #b388ff;
  --gold:    #fbbf24;
  --grad:    linear-gradient(135deg,#e040fb 0%,#7c4dff 100%);
  --glow-pk: rgba(224,64,251,0.28);
  --glow-pp: rgba(124,77,255,0.22);
  --text:    #eeeef8;
  --text2:   #c0c0d8;
  --muted:   #55556e;
  --muted2:  #8a8aaa;
  --font-jp: 'Noto Sans JP',sans-serif;
  --font-d:  'Rajdhani',sans-serif;
  --font-m:  'Space Mono',monospace;
  --r:       12px;
  --r-sm:    8px;
  --r-lg:    18px;
  --nav-h:   60px;
  --trans:   all 0.25s cubic-bezier(0.4,0,0.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{background:var(--bg);color:var(--text);font-family:var(--font-jp);font-size:14px;line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body::after{content:'';position:fixed;inset:0;pointer-events:none;z-index:9990;opacity:.28;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='.04'/%3E%3C/svg%3E")}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul{list-style:none}
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--purple);border-radius:2px}
::-webkit-scrollbar-thumb:hover{background:var(--pink)}

/* CURSOR GLOW */
#cursor-glow{position:fixed;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(224,64,251,.065) 0%,transparent 70%);pointer-events:none;z-index:9989;transform:translate(-50%,-50%);transition:left .08s linear,top .08s linear}

/* CONTAINER */
.container{max-width:1100px;margin:0 auto;padding:0 24px}
.center{text-align:center}
.center .section-sub{margin-inline:auto;max-width:500px}

/* REVEAL */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease;transition-delay:var(--delay,0s)}
.reveal.in{opacity:1;transform:translateY(0)}

/* ─── NAVBAR ─── */
nav{position:fixed;top:0;left:0;right:0;z-index:500;height:var(--nav-h);padding:0 40px;display:flex;align-items:center;justify-content:space-between;gap:16px;background:rgba(8,8,15,.78);backdrop-filter:blur(22px) saturate(1.6);-webkit-backdrop-filter:blur(22px) saturate(1.6);border-bottom:1px solid var(--border);transition:box-shadow .3s,background .3s}
nav.scrolled{background:rgba(8,8,15,.95);box-shadow:0 4px 40px rgba(0,0,0,.65)}
.nav-logo{font-family:var(--font-d);font-size:22px;font-weight:700;color:var(--pink);letter-spacing:.5px;display:flex;align-items:center;gap:8px;flex-shrink:0}
.nav-logo-icon{width:30px;height:30px;background:var(--grad);border-radius:8px;display:grid;place-items:center;font-size:14px;color:#fff;animation:hueShift 10s linear infinite;flex-shrink:0}
@keyframes hueShift{to{filter:hue-rotate(360deg)}}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:var(--muted2);font-size:13px;font-weight:500;letter-spacing:.4px;position:relative;padding-bottom:2px;transition:color .2s;white-space:nowrap}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;right:0;height:1px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.lang-toggle{display:flex;background:var(--card);border:1px solid var(--border2);border-radius:var(--r-sm);overflow:hidden}
.lang-btn{padding:6px 13px;background:transparent;border:none;color:var(--muted);font-size:11px;font-weight:700;font-family:var(--font-m);cursor:pointer;letter-spacing:.8px;transition:var(--trans)}
.lang-btn.active{background:var(--grad);color:#fff}
.lang-btn:not(.active):hover{color:var(--text);background:var(--card2)}
.btn-nav{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;background:var(--grad);border:none;border-radius:var(--r-sm);color:#fff;font-size:13px;font-weight:600;letter-spacing:.3px;transition:transform .25s,box-shadow .25s;position:relative;overflow:hidden;white-space:nowrap;text-decoration:none;cursor:pointer}
.btn-nav::before{content:'';position:absolute;inset:0;background:rgba(255,255,255,.14);opacity:0;transition:opacity .25s}
.btn-nav:hover{transform:translateY(-2px);box-shadow:0 8px 24px var(--glow-pk)}
.btn-nav:hover::before{opacity:1}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:4px;cursor:pointer;z-index:510}
.nav-burger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s,opacity .3s}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ─── HERO ─── */
#hero{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:calc(var(--nav-h) + 40px) 24px 80px;position:relative;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:radial-gradient(ellipse 90% 60% at 50% -10%,rgba(124,77,255,.2) 0%,transparent 55%),radial-gradient(ellipse 60% 45% at 15% 92%,rgba(224,64,251,.12) 0%,transparent 50%),radial-gradient(ellipse 55% 40% at 85% 18%,rgba(224,64,251,.08) 0%,transparent 50%);pointer-events:none}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(124,77,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(124,77,255,.045) 1px,transparent 1px);background-size:50px 50px;mask-image:radial-gradient(ellipse 80% 70% at 50% 50%,black 10%,transparent 68%);pointer-events:none}
.hero-kanji{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-family:var(--font-jp);font-size:clamp(200px,40vw,560px);font-weight:700;color:rgba(255,255,255,.012);pointer-events:none;user-select:none;line-height:1;white-space:nowrap}
.orb{position:absolute;border-radius:50%;pointer-events:none;animation:orbFloat 7s ease-in-out infinite}
.orb1{width:320px;height:320px;top:8%;left:2%;background:radial-gradient(circle,rgba(124,77,255,.13),transparent 70%)}
.orb2{width:220px;height:220px;bottom:15%;right:4%;background:radial-gradient(circle,rgba(224,64,251,.11),transparent 70%);animation-delay:-3.5s}
@keyframes orbFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-26px)}}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;background:rgba(224,64,251,.1);border:1px solid rgba(224,64,251,.3);border-radius:100px;font-size:11px;font-weight:700;color:var(--pink);letter-spacing:1.8px;text-transform:uppercase;margin-bottom:24px;position:relative;z-index:1;animation:fadeUp .6s ease both}
.badge-dot{width:7px;height:7px;background:var(--pink);border-radius:50%;animation:pulseDot 2s ease infinite;flex-shrink:0}
@keyframes pulseDot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.7)}}
.hero-title{font-family:var(--font-d);font-size:clamp(64px,12vw,128px);font-weight:700;line-height:.9;letter-spacing:-3px;background:linear-gradient(140deg,#ffffff 0%,#f48fff 40%,var(--purple2) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 0 80px rgba(224,64,251,.38));position:relative;z-index:1;animation:fadeUp .65s ease .1s both}
.hero-sub{font-family:var(--font-d);font-size:clamp(12px,1.8vw,19px);letter-spacing:7px;text-transform:uppercase;color:var(--muted2);margin-top:12px;position:relative;z-index:1;animation:fadeUp .65s ease .18s both}
.hero-desc{max-width:560px;color:var(--muted2);font-size:14px;margin:22px auto 0;line-height:1.85;position:relative;z-index:1;animation:fadeUp .65s ease .26s both}
.hero-note{display:inline-flex;align-items:center;gap:7px;margin-top:16px;padding:7px 16px;background:rgba(124,77,255,.1);border:1px solid rgba(124,77,255,.25);border-radius:var(--r-sm);font-size:12px;color:var(--purple2);position:relative;z-index:1;animation:fadeUp .65s ease .32s both;line-height:1.5}
.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:30px;position:relative;z-index:1;animation:fadeUp .65s ease .38s both}
.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;background:var(--grad);border:none;border-radius:var(--r-sm);color:#fff;font-size:14px;font-weight:600;font-family:var(--font-jp);letter-spacing:.3px;transition:transform .3s,box-shadow .3s;position:relative;overflow:hidden;cursor:pointer;text-decoration:none}
.btn-primary::before{content:'';position:absolute;inset:0;background:rgba(255,255,255,.16);opacity:0;transition:opacity .3s}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 30px var(--glow-pk)}
.btn-primary:hover::before{opacity:1}
.btn-icon{font-size:16px;line-height:1}
.btn-ghost{display:inline-flex;align-items:center;padding:13px 30px;background:transparent;border:1px solid var(--border2);border-radius:var(--r-sm);color:var(--muted2);font-size:14px;font-family:var(--font-jp);cursor:pointer;transition:var(--trans)}
.btn-ghost:hover{border-color:var(--pink);color:var(--pink);transform:translateY(-3px)}
.hero-stats{display:flex;align-items:center;margin-top:60px;position:relative;z-index:1;animation:fadeUp .65s ease .46s both;background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:var(--r);overflow:hidden}
.stat{flex:1;text-align:center;padding:22px 20px}
.stat-num{font-family:var(--font-d);font-size:44px;font-weight:700;line-height:1;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:11px;color:var(--muted);margin-top:5px;letter-spacing:.4px;line-height:1.5}
.stat-divider{width:1px;height:48px;background:var(--border);flex-shrink:0}
.hero-scroll{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:1;animation:scrollBounce 2.2s ease infinite}
.scroll-arrow{display:flex;width:32px;height:32px;border:1px solid var(--border2);border-radius:50%;align-items:center;justify-content:center;font-size:14px;color:var(--muted)}
@keyframes scrollBounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(10px)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

/* ─── SECTIONS ─── */
section{padding:92px 0;position:relative}
.section-badge{display:inline-block;padding:4px 14px;background:rgba(224,64,251,.1);border:1px solid rgba(224,64,251,.24);border-radius:100px;font-size:10px;font-weight:700;color:var(--pink);letter-spacing:2.5px;text-transform:uppercase;margin-bottom:14px}
.section-header{margin-bottom:48px}
.section-title{font-family:var(--font-d);font-size:clamp(30px,4.2vw,48px);font-weight:700;letter-spacing:-.5px;line-height:1.07;color:var(--text)}
.section-sub{color:var(--muted2);font-size:14px;margin-top:10px;line-height:1.8}

/* ─── WHY ─── */
#why{background:var(--bg2)}
.section-bg-glow{position:absolute;top:-100px;left:50%;transform:translateX(-50%);width:700px;height:350px;background:radial-gradient(ellipse,rgba(124,77,255,.09),transparent 70%);pointer-events:none}
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.why-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:30px 26px;position:relative;overflow:hidden;transition:border-color .3s,transform .35s,box-shadow .35s}
.why-card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(224,64,251,.05),transparent 60%);opacity:0;transition:opacity .3s}
.why-card:hover{border-color:rgba(224,64,251,.24);transform:translateY(-6px);box-shadow:0 16px 50px rgba(0,0,0,.32)}
.why-card:hover::before{opacity:1}
.why-icon{width:46px;height:46px;background:rgba(224,64,251,.1);border:1px solid rgba(224,64,251,.2);border-radius:11px;display:grid;place-items:center;font-size:20px;margin-bottom:16px}
.why-title-card{font-family:var(--font-d);font-size:18px;font-weight:700;color:var(--text);margin-bottom:8px}
.why-desc{color:var(--muted2);font-size:13.5px;line-height:1.75}

/* ─── FEATURES ─── */
#features{background:var(--bg)}
.cat-tabs{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:28px}
.cat-tab{padding:7px 18px;background:var(--card);border:1px solid var(--border);border-radius:var(--r-sm);color:var(--muted2);font-size:12px;font-weight:500;font-family:var(--font-jp);transition:var(--trans);letter-spacing:.3px;cursor:pointer}
.cat-tab.active,.cat-tab:hover{background:var(--grad);border-color:transparent;color:#fff}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.feat-item{display:flex;align-items:flex-start;gap:10px;padding:14px 16px;background:var(--card);border:1px solid var(--border);border-radius:10px;font-size:13px;color:var(--muted2);line-height:1.45;transition:var(--trans)}
.feat-item::before{content:'▸';color:var(--pink);font-size:10px;flex-shrink:0;margin-top:3px}
.feat-item:hover{border-color:rgba(224,64,251,.24);color:var(--text);background:var(--card2)}
.tag-exp{font-size:10px;color:var(--muted);font-style:italic;margin-left:2px}

/* ─── PRICING ─── */
#pricing{background:var(--bg2);overflow:hidden}
.price-kanji{position:absolute;bottom:-70px;right:-30px;font-family:var(--font-jp);font-size:240px;font-weight:700;color:rgba(255,255,255,.012);pointer-events:none;user-select:none;line-height:1}
.pricing-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;align-items:start}
.price-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);padding:28px 22px;position:relative;transition:transform .35s,box-shadow .35s,border-color .3s}
.price-card:hover{transform:translateY(-7px);box-shadow:0 24px 60px rgba(0,0,0,.38)}
.price-card.popular{border-color:rgba(224,64,251,.4);background:var(--card2);box-shadow:0 0 48px rgba(224,64,251,.1)}
.price-card.popular:hover{box-shadow:0 24px 65px rgba(224,64,251,.24)}
.popular-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);padding:4px 15px;background:var(--grad);border-radius:100px;font-size:10px;font-weight:700;color:#fff;letter-spacing:1.2px;white-space:nowrap;text-transform:uppercase}
.price-period{display:inline-block;padding:3px 11px;background:rgba(124,77,255,.12);border:1px solid rgba(124,77,255,.22);border-radius:6px;font-size:11px;color:var(--purple2);font-weight:600;margin-bottom:14px}
.price-val{font-family:var(--font-d);font-size:40px;font-weight:700;color:var(--text);line-height:1;margin-bottom:6px}
.price-val span{font-size:20px;color:var(--muted2)}
.price-note{font-size:11px;color:var(--muted);margin-bottom:22px;min-height:18px}
.price-feats{margin-bottom:24px;display:flex;flex-direction:column}
.price-feats li{display:flex;align-items:flex-start;gap:9px;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px;color:var(--muted2);line-height:1.5}
.price-feats li:last-child{border:none}
.price-feats li::before{content:'✓';color:var(--pink);font-size:11px;flex-shrink:0;margin-top:2px}
.price-btn{display:block;width:100%;text-align:center;padding:12px;border-radius:var(--r-sm);border:1px solid var(--border2);background:transparent;color:var(--muted2);font-size:13px;font-weight:600;font-family:var(--font-jp);cursor:pointer;transition:var(--trans);text-decoration:none}
.price-btn:hover{border-color:var(--pink);color:var(--pink)}
.price-btn.cta{background:var(--grad);border-color:transparent;color:#fff}
.price-btn.cta:hover{box-shadow:0 8px 24px var(--glow-pk);transform:translateY(-2px)}

/* ─── CTA ─── */
#cta{background:var(--bg);text-align:center}
.cta-glow{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:700px;height:350px;background:radial-gradient(ellipse,rgba(124,77,255,.09),transparent 70%);pointer-events:none}
.steps{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin:36px 0}
.step{display:flex;align-items:center;gap:14px;padding:18px 24px;background:var(--card);border:1px solid var(--border);border-radius:var(--r);flex:1;min-width:180px;max-width:250px;text-align:left;transition:border-color .3s,transform .3s}
.step:hover{border-color:rgba(224,64,251,.24);transform:translateY(-5px)}
.step-num{width:36px;height:36px;background:var(--grad);border-radius:50%;display:grid;place-items:center;font-family:var(--font-m);font-size:12px;font-weight:700;color:#fff;flex-shrink:0}
.step-text{font-size:13px;color:var(--muted2);line-height:1.5}
.step-arrow{font-size:18px;color:var(--muted);flex-shrink:0}
.cta-download{position:relative;z-index:1}
.btn-download-big{display:inline-flex;flex-direction:column;align-items:center;gap:4px;padding:18px 48px;background:var(--grad);border:none;border-radius:var(--r);color:#fff;font-family:var(--font-jp);cursor:pointer;position:relative;overflow:hidden;transition:transform .3s,box-shadow .3s;text-decoration:none}
.btn-download-big::before{content:'';position:absolute;inset:0;background:rgba(255,255,255,.14);opacity:0;transition:opacity .3s}
.btn-download-big:hover{transform:translateY(-4px);box-shadow:0 16px 48px var(--glow-pk)}
.btn-download-big:hover::before{opacity:1}
.btn-dl-icon{font-size:22px;line-height:1;display:block}
.btn-dl-main{font-size:17px;font-weight:700;letter-spacing:.3px;display:block}
.btn-dl-sub{font-size:11px;font-weight:400;color:rgba(255,255,255,.7);letter-spacing:.5px;display:block;margin-top:2px}
.cta-note{margin-top:14px;font-size:11px;color:var(--muted);position:relative;z-index:1}

/* ─── REVIEWS ─── */
#reviews{background:var(--bg2);overflow:hidden}
.reviews-kanji{position:absolute;top:-20px;left:-10px;font-family:var(--font-jp);font-size:170px;font-weight:700;color:rgba(255,255,255,.012);pointer-events:none;user-select:none;line-height:1}
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.review-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:24px;transition:border-color .3s,transform .35s,box-shadow .35s}
.review-card:hover{border-color:rgba(224,64,251,.22);transform:translateY(-6px);box-shadow:0 16px 40px rgba(0,0,0,.32)}
.stars{color:var(--gold);font-size:13px;letter-spacing:2px;margin-bottom:14px}
.review-text{font-size:13.5px;color:var(--muted2);line-height:1.78;margin-bottom:18px;font-style:italic}
.review-text::before{content:'"';color:var(--pink);font-size:18px;font-style:normal;margin-right:1px;line-height:0;vertical-align:-4px}
.review-text::after{content:'"';color:var(--pink);font-size:18px;font-style:normal;margin-left:1px;line-height:0;vertical-align:-4px}
.reviewer{display:flex;align-items:center;gap:10px}
.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--av1),var(--av2));flex-shrink:0}
.reviewer-name{font-size:13px;font-weight:600;color:var(--text)}

/* ─── FAQ ─── */
#faq{background:var(--bg)}
.faq-list{max-width:700px;margin:0 auto;display:flex;flex-direction:column;gap:8px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--r-sm);overflow:hidden;transition:border-color .25s}
.faq-item.open{border-color:rgba(224,64,251,.28)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 22px;background:none;border:none;color:var(--text);font-size:14px;font-weight:500;text-align:left;cursor:pointer;transition:color .2s;font-family:var(--font-jp);line-height:1.5}
.faq-q:hover{color:var(--pink)}
.faq-item.open .faq-q{color:var(--pink)}
.faq-chevron{flex-shrink:0;color:var(--muted2);transition:transform .35s cubic-bezier(.4,0,.2,1),color .2s}
.faq-item.open .faq-chevron{transform:rotate(180deg);color:var(--pink)}
.faq-a{overflow:hidden;max-height:0;transition:max-height .42s cubic-bezier(.4,0,.2,1)}
.faq-item.open .faq-a{max-height:300px}
.faq-a p{padding:14px 22px 18px;font-size:13.5px;color:var(--muted2);line-height:1.78;border-top:1px solid var(--border)}

/* ─── FOOTER ─── */
footer{background:var(--bg2);border-top:1px solid var(--border);padding:44px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer-logo{font-family:var(--font-d);font-size:22px;font-weight:700;color:var(--pink);display:flex;align-items:center;gap:8px;margin-bottom:6px}
.footer-logo-icon{width:28px;height:28px;background:var(--grad);border-radius:7px;display:grid;place-items:center;font-size:13px}
.footer-tagline{font-size:12px;color:var(--muted);line-height:1.65;max-width:220px}
.footer-links{display:flex;gap:22px;flex-wrap:wrap}
.footer-links a{color:var(--muted2);font-size:13px;transition:color .2s}
.footer-links a:hover{color:var(--pink)}
.footer-copy{font-size:12px;color:var(--muted)}

/* ─── BACK TO TOP ─── */
.back-to-top{position:fixed;bottom:28px;right:28px;z-index:400;width:42px;height:42px;background:var(--grad);border:none;border-radius:50%;color:#fff;font-size:16px;display:grid;place-items:center;cursor:pointer;opacity:0;transform:translateY(16px);transition:opacity .3s,transform .3s,box-shadow .3s;box-shadow:0 4px 18px var(--glow-pk)}
.back-to-top.visible{opacity:1;transform:translateY(0)}
.back-to-top:hover{box-shadow:0 8px 28px var(--glow-pk);transform:translateY(-3px)}

/* ─── MOBILE NAV ─── */
@media(max-width:900px){
  nav{padding:0 20px}
  .nav-links{position:fixed;top:var(--nav-h);left:0;right:0;background:rgba(8,8,15,.97);backdrop-filter:blur(20px);flex-direction:column;align-items:center;gap:0;padding:0;max-height:0;overflow:hidden;transition:max-height .4s ease;border-bottom:1px solid var(--border)}
  .nav-links.open{max-height:400px}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:16px 24px;font-size:15px;border-bottom:1px solid var(--border)}
  .nav-links a::after{display:none}
  .nav-burger{display:flex}
}

/* ─── RESPONSIVE ─── */
@media(max-width:1000px){.pricing-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:800px){
  section{padding:72px 0}
  .why-grid{grid-template-columns:1fr}
  .reviews-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .hero-stats{flex-direction:column;gap:0;max-width:320px}
  .stat-divider{width:80%;height:1px}
}
@media(max-width:600px){
  section{padding:60px 0}
  .pricing-grid{grid-template-columns:1fr}
  .reviews-grid{grid-template-columns:1fr}
  .feat-grid{grid-template-columns:1fr}
  .steps{flex-direction:column;align-items:stretch}
  .step{max-width:100%}
  .step-arrow{transform:rotate(90deg);margin:0 auto}
  .footer-inner{flex-direction:column;align-items:flex-start}
  .hero-title{font-size:clamp(48px,15vw,80px);letter-spacing:-1.5px}
  .back-to-top{bottom:18px;right:18px}
}
@media(max-width:400px){
  nav{padding:0 14px}
  .btn-nav{padding:7px 14px;font-size:12px}
  .hero-btns{flex-direction:column;align-items:center}
}