/* =====================================================================
   EchoXen — "CLEAR SOUND" template
   Concept: sound clarity. Deep ocean blue + warm amber. The signature
   motif is concentric "echo rings" (sound ripples) — echoing the name.
   Built from scratch, unique to EchoXen.
   ===================================================================== */

:root{
  --deep:#0b2f6b;        /* deep ocean blue */
  --blue:#1f6fe0;        /* bright label blue */
  --blue-d:#154fa8;
  --blue-l:#6fa6f2;
  --sky:#e9f1fc;         /* light section bg */
  --sky-2:#f4f8ff;
  --paper:#ffffff;
  --ink:#0e2038;         /* deep navy ink text */
  --ink-soft:#47597a;
  --muted:#6b7c99;
  --amber:#f4a62a;       /* warm gold — ACTION */
  --amber-d:#e08f16;
  --star:#ffb020;
  --line:#dbe6f6;
  --shadow-s:0 6px 20px rgba(11,47,107,.07);
  --shadow:0 16px 44px rgba(11,47,107,.12);
  --shadow-l:0 30px 70px rgba(11,47,107,.20);
  --r:16px; --r-l:26px; --r-xl:34px;
  --maxw:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:auto;scroll-padding-top:84px;}
body{margin:0;font-family:'Inter',system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;}
h1,h2,h3,h4,.brand__name,.eyebrow{font-family:'Space Grotesk','Inter',sans-serif;letter-spacing:-.02em;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--blue-d);}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px;}

.eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.14em;color:var(--blue-d);}
.eyebrow__dot{width:8px;height:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(31,111,224,.16);}
.eyebrow--light{color:var(--blue-l);}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:'Space Grotesk',sans-serif;font-weight:700;text-decoration:none;border-radius:60px;padding:.85rem 1.6rem;transition:transform .18s var(--ease),box-shadow .18s,background .18s,color .18s;cursor:pointer;border:none;font-size:1rem;}
.btn--cta{background:linear-gradient(180deg,var(--amber),var(--amber-d));color:#3a2600;box-shadow:0 12px 26px rgba(224,143,22,.4);}
.btn--cta:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(224,143,22,.5);filter:brightness(1.04);}
.btn--lg{padding:1.05rem 2rem;font-size:1.08rem;}
.btn--ghost{background:transparent;color:var(--blue-d);border:2px solid var(--line);}
.btn--ghost:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px);}

/* =========================== NAVBAR =========================== */
.nav{position:sticky;top:0;z-index:100;background:rgba(244,248,255,.82);backdrop-filter:blur(14px) saturate(180%);-webkit-backdrop-filter:blur(14px) saturate(180%);border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s,background .3s;}
.nav.scrolled{background:rgba(255,255,255,.92);border-color:var(--line);box-shadow:0 6px 24px rgba(11,47,107,.07);}
.nav .wrap{max-width:1280px;}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:1.2rem;}
.brand{display:inline-flex;align-items:center;gap:.55rem;text-decoration:none;white-space:nowrap;}
.brand__mark{flex:0 0 auto;}
.brand__name{font-weight:700;font-size:1.42rem;color:var(--deep);letter-spacing:-.02em;}
.brand__name span{color:var(--blue);}
.nav__links{display:flex;align-items:center;gap:1.55rem;}
.nav__links a{position:relative;white-space:nowrap;text-decoration:none;color:var(--ink);font-weight:600;font-size:.95rem;padding:.35rem 0;transition:color .18s;}
.nav__links a::after{content:"";position:absolute;left:0;right:100%;bottom:-3px;height:2.5px;background:var(--blue);border-radius:2px;transition:right .25s var(--ease);}
.nav__links a:hover,.nav__links a.active{color:var(--blue-d);}
.nav__links a:hover::after,.nav__links a.active::after{right:0;}
.nav__right{display:flex;align-items:center;gap:.8rem;flex:0 0 auto;}
.nav__toggle{display:none;flex-direction:column;gap:5px;width:44px;height:40px;background:transparent;border:none;padding:9px;cursor:pointer;}
.nav__toggle span{height:2.5px;background:var(--ink);border-radius:2px;transition:transform .25s,opacity .2s;}
.nav__toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7.5px) rotate(45deg);}
.nav__toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav__toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg);}

/* =========================== HERO =========================== */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#fff 0%,var(--sky) 100%);}
.hero__grid{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:2.5rem;align-items:center;padding:4.2rem 22px 4.6rem;}
.hero__body{max-width:580px;}
.hero__title{font-size:clamp(2.3rem,4.8vw,3.7rem);line-height:1.06;font-weight:700;letter-spacing:-.03em;margin:.9rem 0 1rem;color:var(--deep);}
.hero__title em{font-style:normal;color:var(--blue);position:relative;}
.hero__lead{font-size:1.13rem;color:var(--ink-soft);margin:0 0 1.6rem;max-width:52ch;}
.hero__cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-bottom:1.3rem;}
.hero__trust{display:flex;align-items:center;gap:.6rem;color:var(--ink-soft);font-size:.96rem;margin-bottom:1rem;}
.hero__trust .stars{color:var(--star);letter-spacing:1px;font-size:1.05rem;}
.hero__trust strong{color:var(--ink);}
.hero__pills{list-style:none;display:flex;flex-wrap:wrap;gap:.5rem;padding:0;margin:0;}
.hero__pills li{font-size:.82rem;font-weight:600;color:var(--blue-d);background:#fff;border:1px solid var(--line);border-radius:40px;padding:.35rem .85rem;}
.hero__media{position:relative;margin:0;display:flex;align-items:center;justify-content:center;min-height:440px;}
.hero__rings{position:absolute;width:min(460px,92%);aspect-ratio:1;}
.hero__rings span{position:absolute;inset:0;margin:auto;border-radius:50%;border:2px solid rgba(31,111,224,.22);}
.hero__rings span:nth-child(1){width:40%;height:40%;}
.hero__rings span:nth-child(2){width:62%;height:62%;border-color:rgba(31,111,224,.16);}
.hero__rings span:nth-child(3){width:84%;height:84%;border-color:rgba(31,111,224,.10);}
.hero__rings span:nth-child(4){width:106%;height:106%;border-color:rgba(31,111,224,.06);}
.hero__media img{position:relative;z-index:2;max-width:82%;filter:drop-shadow(0 30px 50px rgba(11,47,107,.28));}

/* --- unique hero: full-width animated soundwave strip (bottom divider) --- */
.hero__wave{position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:center;gap:5px;height:56px;padding:0 22px 10px;opacity:.6;margin-top:-18px;}
.hero__wave span{flex:0 0 auto;width:5px;border-radius:4px;background:linear-gradient(180deg,var(--blue-l),var(--blue));animation:eq 1.5s ease-in-out infinite;}
.hero__wave span:nth-child(even){background:linear-gradient(180deg,var(--blue),var(--deep));}
.hero__wave span:nth-child(4n){height:30%}.hero__wave span:nth-child(4n+1){height:70%}
.hero__wave span:nth-child(4n+2){height:100%}.hero__wave span:nth-child(4n+3){height:48%}
.hero__wave span:nth-child(3n){animation-delay:.2s}.hero__wave span:nth-child(3n+1){animation-delay:.4s}
.hero__wave span:nth-child(5n){animation-delay:.1s}.hero__wave span:nth-child(7n){animation-delay:.32s}
@keyframes eq{0%,100%{transform:scaleY(.35)}50%{transform:scaleY(1)}}

/* --- floating benefit chips --- */
.hero__chip{position:absolute;z-index:3;display:inline-flex;align-items:center;gap:.45rem;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);border:1px solid var(--line);border-radius:40px;padding:.5rem .9rem;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:.86rem;color:var(--deep);box-shadow:0 12px 26px rgba(11,47,107,.16);white-space:nowrap;}
.hero__chip b{font-size:1rem;line-height:1;}
.hero__chip--1{top:16%;left:-2%;animation:chipFloat 5s ease-in-out infinite;}
.hero__chip--2{bottom:20%;right:-2%;animation:chipFloat 5.6s ease-in-out infinite .6s;}
@keyframes chipFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@media(prefers-reduced-motion:reduce){.hero__wave span,.hero__chip{animation:none!important;}}

/* echo-ring animation */
@keyframes ripple{0%{transform:scale(.8);opacity:.7;}100%{transform:scale(1.25);opacity:0;}}
.hero__rings span{animation:ripple 4s ease-out infinite;}
.hero__rings span:nth-child(2){animation-delay:1s;}
.hero__rings span:nth-child(3){animation-delay:2s;}
.hero__rings span:nth-child(4){animation-delay:3s;}
@keyframes floatY{0%,100%{transform:translateY(0);}50%{transform:translateY(-12px);}}
.hero__media img{animation:floatY 6s ease-in-out infinite;}
.a-in{opacity:0;transform:translateY(18px);animation:heroIn .7s var(--ease) forwards;animation-delay:var(--d,0s);}
@keyframes heroIn{to{opacity:1;transform:none;}}
@media(prefers-reduced-motion:reduce){.hero__rings span,.hero__media img,.a-in{animation:none!important;opacity:1;transform:none;}}

/* =========================== SHARED SECTIONS =========================== */
section{padding:4.6rem 0;position:relative;}
/* --- decorative section backgrounds for visual richness --- */
.dotbg{position:relative;}
.dotbg::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(rgba(31,111,224,.15) 1.4px,transparent 1.4px);background-size:26px 26px;-webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 0%,#000 40%,transparent 100%);mask-image:radial-gradient(ellipse 70% 60% at 50% 0%,#000 40%,transparent 100%);opacity:.7;}
.blob{position:absolute;border-radius:50%;filter:blur(60px);pointer-events:none;z-index:0;}
.blob--blue{background:radial-gradient(circle,rgba(31,111,224,.22),transparent 70%);}
.blob--amber{background:radial-gradient(circle,rgba(244,166,42,.20),transparent 70%);}
/* wave divider between hero and next section */
.wave-divider{position:relative;line-height:0;margin-top:-3px;background:#fff;}
.wave-divider svg{display:block;width:100%;height:auto;}
.wave-divider path{fill:var(--sky-2);}
/* icon badges (used in why / usage / detail) */
.icon-badge{width:58px;height:58px;display:grid;place-items:center;border-radius:18px;margin-bottom:1.1rem;box-shadow:0 10px 22px rgba(11,47,107,.18);position:relative;z-index:1;}
.icon-badge svg{width:26px;height:26px;}
.icon-badge--blue{background:linear-gradient(150deg,var(--blue),var(--deep));}
.icon-badge--amber{background:linear-gradient(150deg,var(--amber),var(--amber-d));box-shadow:0 10px 22px rgba(224,143,22,.3);}
.icon-badge--sky{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-s);}
.icon-badge--sky svg{color:var(--blue);}
.sec-head{max-width:640px;margin:0 auto 2.6rem;text-align:center;}
.sec-head h2{font-size:clamp(1.8rem,3.6vw,2.6rem);line-height:1.12;font-weight:700;letter-spacing:-.025em;margin:.7rem 0 0;color:var(--deep);}
.sec-head .sec-sub{color:var(--ink-soft);margin:.9rem auto 0;max-width:52ch;}
.sec-head--light h2{color:#fff;}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none;}}
.tlink{color:var(--blue-d);font-weight:600;text-decoration:underline;text-underline-offset:2px;}
.tlink:hover{color:var(--amber-d);}
.ext{color:inherit;text-decoration:none;border-bottom:2px solid rgba(31,111,224,.4);}
.ext:hover{border-color:var(--blue);}

/* trust strip */
.trust{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.6rem 0;}
.trust__row{display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;}
.trust__item{display:flex;align-items:center;gap:.7rem;flex:1;min-width:200px;justify-content:center;}
.trust__item img{height:52px;width:auto;}
.trust__item span{font-family:'Space Grotesk',sans-serif;font-weight:700;color:var(--deep);font-size:.98rem;}

/* glance */
.glance{background:var(--sky-2);overflow:hidden;}
.glance__card{background:linear-gradient(150deg,var(--deep),#0a4aa0);border-radius:var(--r-xl);padding:2.6rem;color:#fff;box-shadow:var(--shadow-l);overflow:hidden;position:relative;display:grid;grid-template-columns:1fr 1.1fr;gap:2rem;align-items:center;}
.glance__card::after{content:"";position:absolute;right:-8%;top:-30%;width:46%;height:160%;background:radial-gradient(circle,rgba(31,111,224,.35),transparent 62%);}
.glance__intro .eyebrow{color:var(--blue-l);}
.glance__intro h2{font-size:1.9rem;font-weight:700;margin:.6rem 0 .8rem;color:#fff;}
.glance__intro p{color:#cfe0f7;margin:0;}
.glance__grid{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;position:relative;z-index:1;}
.glance__grid div{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:.85rem 1rem;}
.glance__grid dt{font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:var(--blue-l);font-weight:700;font-family:'Space Grotesk',sans-serif;}
.glance__grid dd{margin:.2rem 0 0;font-weight:600;font-size:.95rem;}

/* why */
.why{background:#fff;overflow:hidden;}
.why__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
.why__card{background:var(--sky-2);border:1px solid var(--line);border-radius:var(--r-l);padding:2rem 1.7rem;transition:transform .22s var(--ease),box-shadow .22s,border-color .22s;position:relative;overflow:hidden;z-index:1;}
.why__card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--blue),var(--amber));transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);}
.why__card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue-l);}
.why__card:hover::before{transform:scaleX(1);}
.why__ico{width:54px;height:54px;display:grid;place-items:center;border-radius:16px;background:#fff;border:1px solid var(--line);color:var(--blue);font-size:1.5rem;margin-bottom:1.1rem;box-shadow:var(--shadow-s);}
.why__card h3{font-size:1.22rem;font-weight:700;margin:0 0 .5rem;color:var(--deep);}
.why__card p{margin:0;color:var(--ink-soft);}

/* reviews */
.reviews{background:var(--sky-2);}
.reviews__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
.review{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:1.8rem;box-shadow:var(--shadow-s);transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column;}
.review:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
.review__stars{color:var(--star);letter-spacing:1px;margin-bottom:.7rem;}
.review blockquote{margin:0 0 1.3rem;font-size:1.02rem;color:var(--ink);line-height:1.6;}
.review figcaption{display:flex;align-items:center;gap:.8rem;margin-top:auto;}
.review figcaption img{width:52px;height:52px;border-radius:50%;object-fit:cover;border:2px solid #fff;box-shadow:0 0 0 2px var(--blue-l);}
.review figcaption span{display:flex;flex-direction:column;font-size:.85rem;color:var(--ink-soft);}
.review figcaption strong{font-family:'Space Grotesk',sans-serif;color:var(--ink);font-size:.98rem;}

/* about / split */
.about{background:#fff;}
.about__grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:2.6rem;align-items:center;}
.about__media{position:relative;margin:0;display:flex;justify-content:center;}
.about__blob{position:absolute;inset:4% 6%;background:radial-gradient(circle at 50% 45%,var(--sky) 0 55%,transparent 70%);border-radius:50%;}
.about__media img{position:relative;z-index:1;max-height:420px;width:auto;filter:drop-shadow(0 22px 40px rgba(11,47,107,.22));}
.about__body h2{font-size:clamp(1.7rem,3vw,2.4rem);font-weight:700;letter-spacing:-.025em;margin:.7rem 0 1rem;line-height:1.15;color:var(--deep);}
.about__body p{color:var(--ink-soft);margin:0 0 1rem;}
.about__body .btn{margin-top:.6rem;}

/* how (dark) */
.how{background:linear-gradient(160deg,#0a2b5e,var(--ink));color:#cfe0f7;overflow:hidden;}
.how__aura{position:absolute;top:-10%;left:-6%;width:50%;height:120%;background:radial-gradient(circle,rgba(31,111,224,.3),transparent 60%);}
.how__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;position:relative;}
.how__step{background:rgba(255,255,255,.05);border:1px solid rgba(111,166,242,.22);border-radius:var(--r-l);padding:1.7rem 1.4rem;transition:border-color .2s,transform .2s,background .2s;}
.how__step:hover{border-color:var(--blue-l);transform:translateY(-5px);background:rgba(31,111,224,.1);}
.how__n{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.6rem;color:var(--blue-l);display:block;margin-bottom:.5rem;}
.how__step h3{color:#fff;font-size:1.12rem;font-weight:700;margin:0 0 .5rem;}
.how__step p{margin:0;font-size:.95rem;color:#bcd0ef;}

/* works split */
.works{background:var(--sky-2);overflow:hidden;}
.works__grid{display:grid;grid-template-columns:1fr 1.05fr;gap:2.6rem;align-items:center;}
.works__body h2{font-size:clamp(1.7rem,3vw,2.4rem);font-weight:700;letter-spacing:-.025em;margin:.7rem 0 .9rem;line-height:1.15;color:var(--deep);}
.works__body>p{color:var(--ink-soft);margin:0 0 1.4rem;max-width:50ch;}
.works__steps{list-style:none;margin:0 0 1.6rem;padding:0;display:flex;flex-direction:column;gap:1rem;}
.works__steps li{display:flex;gap:1rem;align-items:flex-start;}
.works__n{flex:0 0 auto;width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(150deg,var(--blue),var(--deep));color:#fff;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.15rem;box-shadow:0 8px 18px rgba(31,111,224,.35);}
.works__steps h3{font-size:1.1rem;font-weight:700;color:var(--deep);margin:.15rem 0 .25rem;}
.works__steps p{margin:0;color:var(--ink-soft);font-size:.96rem;}
.works__media{position:relative;margin:0;}
.works__glow{position:absolute;inset:-8%;background:radial-gradient(circle,rgba(31,111,224,.18),transparent 65%);}
.works__media img{position:relative;z-index:1;width:100%;border-radius:var(--r-l);box-shadow:var(--shadow);border:1px solid var(--line);}

/* ingredients */
.ingredients{background:#fff;}
.ing__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem;}
.ing{position:relative;background:var(--sky-2);border:1px solid var(--line);border-radius:var(--r-l);padding:1.7rem 1.6rem 1.6rem;box-shadow:var(--shadow-s);transition:transform .2s,box-shadow .2s,border-color .2s;overflow:hidden;}
.ing::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--blue),var(--amber));transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);}
.ing:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue-l);}
.ing:hover::before{transform:scaleX(1);}
.ing__n{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:2.2rem;color:#d3e2f8;position:absolute;top:.6rem;right:1rem;line-height:1;}
.ing h3{font-size:1.16rem;font-weight:700;margin:0 0 .5rem;color:var(--deep);position:relative;}
.ing p{margin:0;color:var(--ink-soft);font-size:.95rem;}

/* pricing */
.pricing{background:var(--sky-2);overflow:hidden;}
.price__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;align-items:stretch;}
.price{position:relative;background:#fff;border:2px solid var(--line);border-radius:var(--r-l);padding:1.9rem 1.4rem;text-align:center;display:flex;flex-direction:column;align-items:center;transition:transform .22s var(--ease),box-shadow .22s,border-color .22s;}
.price:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--blue-l);}
.price--best{border-color:var(--blue);box-shadow:var(--shadow);transform:scale(1.03);}
.price--best:hover{transform:scale(1.03) translateY(-6px);}
.price__flag{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(90deg,var(--amber),var(--amber-d));color:#3a2600;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;padding:.35rem 1rem;border-radius:40px;box-shadow:0 8px 16px rgba(224,143,22,.4);}
.price__name{font-family:'Space Grotesk',sans-serif;font-size:1.4rem;font-weight:700;color:var(--deep);margin:.3rem 0 .2rem;}
.price__supply{color:var(--muted);font-size:.9rem;font-weight:600;margin:0 0 .7rem;}
.price img{max-height:180px;width:auto;margin:.3rem auto 1rem;}
.price__amt{font-family:'Space Grotesk',sans-serif;font-size:2.5rem;font-weight:700;color:var(--blue-d);line-height:1;margin:0;}
.price__amt span{font-size:.95rem;font-weight:600;color:var(--muted);}
.price__note{font-size:.85rem;color:var(--blue-d);font-weight:600;margin:.5rem 0 1.1rem;min-height:2.4em;}
.price__btn{width:100%;margin-top:auto;}
.price__pay{text-align:center;margin-top:1.6rem;}
.price__pay img{height:34px;width:auto;margin:0 auto;opacity:.85;}
.stock{display:flex;align-items:center;justify-content:center;gap:.6rem;max-width:720px;margin:1.6rem auto 0;background:#fff6ec;border:1px solid #ffd9a8;border-left:5px solid var(--amber-d);border-radius:12px;padding:.9rem 1.2rem;color:#a85a1e;font-weight:600;font-size:.95rem;}
.stock span{font-size:1.2rem;}

/* guarantee */
.guarantee{background:linear-gradient(160deg,var(--deep),#0a2b5e);color:#e9f1fc;overflow:hidden;}
.guarantee__grid{display:grid;grid-template-columns:.7fr 1fr;gap:2.4rem;align-items:center;}
.guarantee__seal{margin:0;text-align:center;}
.guarantee__seal img{max-height:250px;width:auto;margin:0 auto;filter:drop-shadow(0 16px 30px rgba(0,0,0,.25));}
.guarantee__body h2{color:#fff;font-size:clamp(1.7rem,3vw,2.3rem);font-weight:700;margin:.6rem 0 .9rem;}
.guarantee__body p{color:#cfe0f7;margin:0 0 1.4rem;}

/* benefits (dark) */
.benefits{background:linear-gradient(160deg,var(--ink),#0a2b5e);color:#cfe0f7;overflow:hidden;}
.benefits__aura{position:absolute;bottom:-15%;right:-6%;width:50%;height:120%;background:radial-gradient(circle,rgba(31,111,224,.28),transparent 60%);}
.benefits__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;position:relative;}
.benefit{background:rgba(255,255,255,.05);border:1px solid rgba(111,166,242,.2);border-radius:var(--r-l);padding:1.6rem;transition:border-color .2s,transform .2s,background .2s;}
.benefit:hover{border-color:var(--blue-l);transform:translateY(-5px);background:rgba(31,111,224,.09);}
.benefit h3{color:#fff;font-size:1.1rem;font-weight:700;margin:0 0 .5rem;padding-left:1.4rem;position:relative;}
.benefit h3::before{content:"";position:absolute;left:0;top:.42em;width:10px;height:10px;border-radius:50%;background:var(--blue-l);box-shadow:0 0 10px var(--blue-l);}
.benefit p{margin:0;font-size:.95rem;color:#bcd0ef;}

/* usage */
.usage{background:#fff;}
.usage__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;position:relative;}
.usage__grid::before{content:"";position:absolute;top:34px;left:16%;right:16%;height:2px;background:repeating-linear-gradient(90deg,var(--blue-l) 0 10px,transparent 10px 20px);opacity:.5;}
.usage__step{position:relative;text-align:center;padding:0 1rem;}
.usage__n{position:relative;z-index:1;width:68px;height:68px;display:grid;place-items:center;margin:0 auto 1.1rem;border-radius:50%;background:linear-gradient(150deg,var(--blue),var(--deep));color:#fff;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.7rem;box-shadow:0 10px 22px rgba(31,111,224,.4),0 0 0 6px var(--sky);}
.usage__step h3{font-size:1.2rem;font-weight:700;color:var(--deep);margin:0 0 .5rem;}
.usage__step p{margin:0;color:var(--ink-soft);}

/* detail */
.detail{background:var(--sky-2);}
.detail__card{max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:2.6rem;box-shadow:var(--shadow-s);}
.detail__card h2{font-size:1.7rem;font-weight:700;color:var(--deep);margin:0 0 1rem;}
.detail__card h3{font-size:1.2rem;font-weight:700;color:var(--deep);margin:1.6rem 0 .6rem;}
.detail__card p{color:var(--ink-soft);margin:0 0 1rem;}
.detail__list{margin:0 0 1rem;padding-left:1.2rem;color:var(--ink-soft);}
.detail__list li{margin-bottom:.4rem;}

/* final cta */
.final{background:radial-gradient(55% 60% at 50% 15%,rgba(31,111,224,.35),transparent 60%),linear-gradient(160deg,var(--ink),#0a2b5e);color:#fff;text-align:center;overflow:hidden;}
.final__inner{position:relative;max-width:760px;margin:0 auto;}
.final__inner h2{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:700;letter-spacing:-.025em;margin:0 0 1.4rem;line-height:1.14;}
.final__img{max-height:300px;width:auto;margin:0 auto 1.2rem;filter:drop-shadow(0 20px 40px rgba(0,0,0,.4));}
.final__price{font-size:1.15rem;color:#cfe0f7;margin:0 0 1.5rem;}
.final__price s{opacity:.6;}
.final__price strong{color:var(--amber);font-size:1.4rem;font-family:'Space Grotesk',sans-serif;}

/* faq */
.faq{background:var(--sky-2);}
.faq__list{max-width:780px;margin:0 auto;}
.faq__item{background:#fff;border:1px solid var(--line);border-radius:var(--r);margin-bottom:.8rem;overflow:hidden;box-shadow:var(--shadow-s);}
.faq__q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:1rem;background:none;border:none;cursor:pointer;padding:1.15rem 1.3rem;text-align:left;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.05rem;color:var(--deep);}
.faq__ic{position:relative;flex:0 0 auto;width:18px;height:18px;}
.faq__ic::before,.faq__ic::after{content:"";position:absolute;background:var(--blue);border-radius:2px;transition:transform .25s;}
.faq__ic::before{left:0;top:8px;width:18px;height:2.5px;}
.faq__ic::after{left:8px;top:0;width:2.5px;height:18px;}
.faq__item.open .faq__ic::after{transform:scaleY(0);}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq__item.open .faq__a{max-height:360px;}
.faq__a p{margin:0;padding:0 1.3rem 1.2rem;color:var(--ink-soft);line-height:1.7;}

/* footer */
.foot{background:var(--ink);color:#9fb6d6;padding:3.4rem 0 1.8rem;}
.foot__top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:2.2rem;padding-bottom:2.2rem;border-bottom:1px solid rgba(255,255,255,.12);}
.foot__logo{display:inline-flex;align-items:center;gap:.5rem;text-decoration:none;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.35rem;color:#fff;margin-bottom:.9rem;}
.foot__logo span{color:var(--blue-l);}
.foot__tag{font-size:.92rem;line-height:1.6;color:#9fb6d6;margin:0 0 1.1rem;max-width:34ch;}
.foot__badges{display:flex;flex-wrap:wrap;gap:.45rem;}
.foot__badges span{font-size:.72rem;font-weight:600;color:#cfe0f7;background:rgba(255,255,255,.06);border:1px solid rgba(111,166,242,.25);border-radius:40px;padding:.3rem .7rem;}
.foot__col{display:flex;flex-direction:column;gap:.6rem;}
.foot__col h4,.foot__cta h4{font-family:'Space Grotesk',sans-serif;color:#fff;font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;margin:.2rem 0 1rem;font-weight:700;}
.foot__col a{color:#bcd0ef;text-decoration:none;font-size:.92rem;transition:color .18s,padding-left .18s;}
.foot__col a:hover{color:var(--blue-l);padding-left:4px;}
.foot__cta p{font-size:.9rem;line-height:1.6;color:#9fb6d6;margin:0 0 1rem;}
.foot__cta .btn{width:100%;}
.foot__disc{padding:1.4rem 0 0;}
.foot__disc p{font-size:.78rem;line-height:1.6;color:#7f95b8;margin:0 0 .7rem;}
.foot__disc strong{color:#bcd0ef;}
.foot__bottom{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;padding-top:1.2rem;border-top:1px solid rgba(255,255,255,.12);margin-top:.6rem;}
.foot__copy{font-size:.85rem;color:#7f95b8;margin:0;}
.foot__legal{display:flex;gap:1.3rem;flex-wrap:wrap;}
.foot__legal a{color:#9fb6d6;text-decoration:none;font-size:.85rem;font-weight:600;}
.foot__legal a:hover{color:var(--blue-l);}

/* page hero (subpages) */
.phero{position:relative;overflow:hidden;background:linear-gradient(180deg,#fff,var(--sky));padding:2.8rem 0 3rem;}
.crumb{font-size:.86rem;color:var(--ink-soft);margin:0 0 1rem;}
.crumb a{color:var(--blue-d);text-decoration:none;font-weight:600;}
.phero__grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:2.4rem;align-items:center;}
.phero__body{max-width:600px;}
.phero__body .eyebrow{margin-bottom:.7rem;}
.phero h1{font-size:clamp(2rem,4vw,3rem);font-weight:700;letter-spacing:-.03em;color:var(--deep);margin:.2rem 0 .9rem;line-height:1.1;}
.phero__sub{margin:0 0 1.5rem;color:var(--ink-soft);font-size:1.12rem;max-width:52ch;}
.phero__cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-bottom:1.2rem;}
.phero__trust{display:flex;align-items:center;gap:.5rem;color:var(--ink-soft);font-size:.95rem;}
.phero__trust .stars{color:var(--star);letter-spacing:1px;}
.phero__trust strong{color:var(--ink);}
.phero__media{position:relative;margin:0;display:flex;align-items:center;justify-content:center;min-height:340px;}
.phero__ring{position:absolute;width:min(360px,88%);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 50% 45%,#fff 0 40%,var(--sky) 41% 66%,transparent 67%);box-shadow:inset 0 0 50px rgba(31,111,224,.14);}
.phero__ring::before{content:"";position:absolute;inset:9%;border-radius:50%;border:1.5px dashed rgba(31,111,224,.35);}
.phero__media img{position:relative;z-index:2;max-width:78%;max-height:400px;width:auto;filter:drop-shadow(0 26px 44px rgba(11,47,107,.24));}
.ctaband{background:radial-gradient(60% 80% at 50% 0%,rgba(31,111,224,.18),transparent),linear-gradient(160deg,var(--deep),#0a2b5e);color:#fff;text-align:center;}
.ctaband h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;margin:0 0 1.4rem;}
.ctaband .related{margin-top:1.4rem;display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;}
.ctaband .related a{color:var(--blue-l);text-decoration:none;font-weight:600;font-size:.95rem;}

/* =========================== RESPONSIVE =========================== */
@media (max-width:900px){
  .nav__links{position:fixed;top:72px;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:.4rem 22px 1rem;transform:translateY(-120%);opacity:0;pointer-events:none;transition:transform .3s var(--ease),opacity .25s;}
  .nav.open .nav__links{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav__links a{padding:.95rem .2rem;border-bottom:1px solid var(--line);font-size:1.05rem;}
  .nav__links a:last-child{border-bottom:none;}
  .nav__links a::after{display:none;}
  .nav__toggle{display:flex;}
  .nav__cta{display:none;}
  .glance__card{grid-template-columns:1fr;gap:1.4rem;padding:2rem;}
  .why__grid,.reviews__grid,.ing__grid,.benefits__grid,.how__grid{grid-template-columns:1fr 1fr;}
  .price__grid{grid-template-columns:1fr;max-width:420px;margin:0 auto;}
  .price--best{transform:none;}.price--best:hover{transform:translateY(-6px);}
  .about__grid,.guarantee__grid,.works__grid{grid-template-columns:1fr;text-align:center;}
  .about__media,.guarantee__seal,.works__media{order:-1;}
  .about__body .eyebrow,.guarantee__body .eyebrow,.works__body .eyebrow{justify-content:center;}
  .works__steps{max-width:440px;margin:0 auto 1.4rem;text-align:left;}
  .trust__item{min-width:44%;}
  .foot__top{grid-template-columns:1fr 1fr;}.foot__brand{grid-column:1/-1;}
}
@media (max-width:820px){
  .hero__grid{grid-template-columns:1fr;gap:1.4rem;padding:2.4rem 22px 3rem;text-align:center;}
  .hero__media{order:-1;min-height:340px;}
  .hero__media img{max-width:62%;}
  .hero__chip{font-size:.74rem;padding:.4rem .7rem;}
  .hero__chip--1{left:2%;top:12%;}
  .hero__chip--2{right:2%;bottom:16%;}
  .hero__eq{height:50px;bottom:10%;}
  .hero__body{max-width:100%;margin:0 auto;}
  .eyebrow{justify-content:center;}
  .hero__cta,.hero__trust,.hero__pills{justify-content:center;}
  .hero__lead{margin-left:auto;margin-right:auto;}
  .btn--lg{width:100%;}.hero__cta .btn--ghost{width:100%;}
  .phero__grid{grid-template-columns:1fr!important;gap:1.3rem;text-align:center;}
  .phero__media{order:-1;min-height:auto;}
  .phero__ring{width:min(300px,78%);}.phero__media img{max-width:62%;}
  .phero__body{max-width:100%;margin:0 auto;}
  .phero__body .eyebrow{justify-content:center;}.crumb{text-align:center;}
  .phero__cta,.phero__trust{justify-content:center;}.phero__sub{margin-left:auto;margin-right:auto;}
  .phero__cta .btn{width:100%;}
}
@media (max-width:600px){
  section{padding:3.2rem 0;}
  .why__grid,.reviews__grid,.ing__grid,.benefits__grid,.how__grid,.usage__grid{grid-template-columns:1fr;}
  .usage__grid::before{display:none;}
  .glance__grid{grid-template-columns:1fr;}
  .glance__card,.detail__card{padding:1.6rem;}
  .foot__top{grid-template-columns:1fr;}
  .foot__bottom{flex-direction:column;text-align:center;}.foot__legal{justify-content:center;}
}
@media (max-width:520px){.brand__name{font-size:1.24rem;}.hero__title{font-size:2.05rem;}}