/* ==========================================================================
   POLARIS — Technical refrigerant / HVAC Shopify theme
   Design system. Aesthetic: engineered, precise, trustworthy, cool.
   ========================================================================== */

/* ---------- Tokens ----------------------------------------------------- */
:root {
  /* Cool, technical palette */
  --color-bg:        #f5f7fa;   /* cool light */
  --color-surface:   #ffffff;
  --color-surface-2: #eef2f7;   /* raised panels / spec rows */
  --color-ink:       #0c1b2a;   /* deep slate navy */
  --color-ink-2:     #44586c;
  --color-ink-3:     #7d8fa1;
  --color-line:      #e1e8ef;
  --color-line-2:    #c8d4df;
  --color-accent:    #0b5fd1;   /* confident technical blue */
  --color-accent-d:  #0a4eaa;
  --color-cyan:      #11a8c4;   /* refrigerant "frost" cyan */
  --color-cyan-soft: #e3f4f8;
  --color-warn:      #b45309;   /* A2L flammable callout */
  --color-warn-soft: #fdf3e7;
  --color-success:   #15794a;
  --color-success-soft:#e7f4ee;

  /* Type */
  --font-display: "Archivo", ui-sans-serif, system-ui, sans-serif;
  --font-body:    "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, monospace;

  --fw-r: 400; --fw-m: 500; --fw-sb: 600; --fw-b: 700; --fw-x: 800;

  --text-xs: 0.75rem; --text-sm: 0.875rem; --text-base: 1rem;
  --text-md: 1.125rem; --text-lg: 1.3rem; --text-xl: 1.65rem;
  --text-2xl: 2.1rem; --text-3xl: 2.8rem; --text-4xl: clamp(2.5rem,5.5vw,4.5rem);

  --sp-1:.25rem; --sp-2:.5rem; --sp-3:.75rem; --sp-4:1rem; --sp-5:1.5rem;
  --sp-6:2rem; --sp-7:3rem; --sp-8:4rem; --sp-9:6rem; --sp-10:8rem;

  --page-max: 1280px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  --radius-sm: 4px; --radius: 8px; --radius-lg: 12px; --radius-pill: 999px;

  --ease: cubic-bezier(0.22,0.61,0.36,1);
  --dur: .4s;

  --shadow-sm: 0 1px 2px rgba(12,27,42,.05);
  --shadow:    0 10px 30px -16px rgba(12,27,42,.22);
  --shadow-lg: 0 24px 60px -28px rgba(12,27,42,.3);
}

*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font-body);font-size:var(--text-base);line-height:1.6;
  color:var(--color-ink);background:var(--color-bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none;padding:0}
:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}

/* ---------- Type primitives ------------------------------------------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:var(--fw-b);line-height:1.08;letter-spacing:-.02em}
.display{font-family:var(--font-display);font-weight:var(--fw-x);letter-spacing:-.03em;line-height:1}
.eyebrow{font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.18em;text-transform:uppercase;color:var(--color-accent);font-weight:var(--fw-m)}
.text-muted{color:var(--color-ink-2)}
.mono{font-family:var(--font-mono)}

/* ---------- Layout ----------------------------------------------------- */
.page-width{max-width:var(--page-max);margin-inline:auto;padding-inline:var(--gutter);width:100%}
.section{padding-block:var(--sp-9)}
.section--tight{padding-block:var(--sp-7)}

/* ---------- Buttons ---------------------------------------------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);
  padding:.9rem 1.7rem;font-family:var(--font-display);font-size:var(--text-sm);font-weight:var(--fw-sb);
  letter-spacing:.01em;border-radius:var(--radius);transition:all var(--dur) var(--ease);will-change:transform}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--color-accent);color:#fff;box-shadow:0 6px 16px -8px var(--color-accent)}
.btn--primary:hover{background:var(--color-accent-d);box-shadow:0 10px 22px -10px var(--color-accent)}
.btn--dark{background:var(--color-ink);color:#fff}
.btn--dark:hover{background:#15293c}
.btn--outline{background:#fff;color:var(--color-ink);box-shadow:inset 0 0 0 1px var(--color-line-2)}
.btn--outline:hover{box-shadow:inset 0 0 0 1px var(--color-ink)}
.btn--block{width:100%}
.btn--lg{padding:1.05rem 2.1rem;font-size:var(--text-base)}

.link-underline{position:relative;font-family:var(--font-display);font-weight:var(--fw-sb);font-size:var(--text-sm);color:var(--color-accent)}
.link-underline::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1.5px;background:currentColor;transform:scaleX(0);transform-origin:right;transition:transform var(--dur) var(--ease)}
.link-underline:hover::after{transform:scaleX(1);transform-origin:left}

/* ---------- Chips / badges -------------------------------------------- */
.chip{display:inline-flex;align-items:center;gap:6px;padding:.35rem .7rem;font-family:var(--font-mono);
  font-size:var(--text-xs);font-weight:var(--fw-m);letter-spacing:.02em;border-radius:var(--radius-sm);
  background:var(--color-surface-2);color:var(--color-ink-2);border:1px solid var(--color-line)}
.chip--type{background:var(--color-cyan-soft);color:#0a6a7d;border-color:#c6e8ef}
.chip--accent{background:#e8f0fd;color:var(--color-accent-d);border-color:#cfe0fb}
.badge{display:inline-block;padding:.28rem .6rem;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.06em;
  text-transform:uppercase;font-weight:var(--fw-sb);border-radius:var(--radius-sm);background:var(--color-ink);color:#fff}
.badge--sale{background:var(--color-accent)}
.badge--soldout{background:var(--color-ink-3)}
.badge--instock{background:var(--color-success-soft);color:var(--color-success)}

/* ==========================================================================
   UTILITY BAR + ANNOUNCEMENT
   ========================================================================== */
.utilitybar{background:var(--color-ink);color:rgba(255,255,255,.85);font-size:.78rem}
.utilitybar__inner{display:flex;align-items:center;justify-content:center;gap:var(--sp-6);min-height:40px;flex-wrap:wrap}
.utilitybar__item{display:inline-flex;align-items:center;gap:7px;font-family:var(--font-mono);letter-spacing:.02em;white-space:nowrap}
.utilitybar__item svg{width:15px;height:15px;color:var(--color-cyan);flex:none}

/* ==========================================================================
   HEADER
   ========================================================================== */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:saturate(150%) blur(14px);border-bottom:1px solid var(--color-line)}
.header__inner{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:var(--sp-5);min-height:74px}
.header__logo{font-family:var(--font-display);font-weight:var(--fw-x);font-size:var(--text-xl);letter-spacing:-.02em;display:flex;align-items:center;gap:9px}
.header__logo .logo-mark{width:30px;height:30px;border-radius:7px;background:linear-gradient(135deg,var(--color-accent),var(--color-cyan));display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem}
.header__nav{display:flex;gap:var(--sp-6);justify-content:center}
.header__nav a{font-family:var(--font-display);font-size:var(--text-sm);font-weight:var(--fw-sb);color:var(--color-ink-2);transition:color var(--dur) var(--ease)}
.header__nav a:hover{color:var(--color-accent)}
.header__actions{display:flex;justify-content:flex-end;gap:var(--sp-3);align-items:center}
.header__search{display:flex;align-items:center;gap:8px;background:var(--color-surface-2);border:1px solid var(--color-line);border-radius:var(--radius-pill);padding:.5rem .9rem;width:230px;color:var(--color-ink-3);transition:border-color var(--dur) var(--ease)}
.header__search:hover{border-color:var(--color-line-2)}
.header__search input{border:none;background:none;width:100%;font-size:var(--text-sm)}
.header__icon{width:24px;height:24px;color:var(--color-ink);position:relative}
.cart-count{position:absolute;top:-7px;right:-9px;min-width:17px;height:17px;padding:0 4px;background:var(--color-accent);color:#fff;font-family:var(--font-mono);font-size:10px;font-weight:var(--fw-b);border-radius:var(--radius-pill);display:inline-flex;align-items:center;justify-content:center}
.header__burger{display:none}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#0c1b2a 0%,#10263b 100%);color:#fff}
.hero__bg{position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(ellipse 80% 70% at 70% 30%,#000,transparent)}
.hero__glow{position:absolute;width:560px;height:560px;right:-120px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(17,168,196,.35),transparent 65%);filter:blur(20px)}
.hero__grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem);align-items:center;padding-block:clamp(3.5rem,8vw,6.5rem)}
.hero__eyebrow{font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.2em;text-transform:uppercase;color:var(--color-cyan);display:inline-flex;align-items:center;gap:9px;margin-bottom:var(--sp-5)}
.hero__eyebrow::before{content:"";width:30px;height:1px;background:var(--color-cyan)}
.hero__title{font-size:var(--text-4xl);margin-bottom:var(--sp-5)}
.hero__title .accent{color:var(--color-cyan)}
.hero__lede{font-size:var(--text-md);color:rgba(255,255,255,.72);max-width:46ch;margin-bottom:var(--sp-6)}
.hero__cta{display:flex;gap:var(--sp-3);flex-wrap:wrap;margin-bottom:var(--sp-7)}
.hero__stats{display:flex;gap:var(--sp-7);flex-wrap:wrap}
.hero__stat .n{font-family:var(--font-display);font-weight:var(--fw-x);font-size:var(--text-2xl);line-height:1}
.hero__stat .l{font-family:var(--font-mono);font-size:var(--text-xs);color:rgba(255,255,255,.55);letter-spacing:.04em;margin-top:4px}
.hero__media{position:relative;aspect-ratio:1;border-radius:var(--radius-lg);overflow:hidden;
  background:radial-gradient(circle at 50% 35%,#1b3a55,#0c1b2a);border:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center}
.hero__media img{width:100%;height:100%;object-fit:contain;padding:8%}
.hero__media-ph{font-family:var(--font-display);font-weight:var(--fw-x);font-size:5rem;color:rgba(255,255,255,.12)}
.hero__media-tag{position:absolute;bottom:var(--sp-4);left:var(--sp-4);background:rgba(12,27,42,.7);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:.6rem .9rem;font-family:var(--font-mono);font-size:var(--text-xs);color:#fff;display:flex;align-items:center;gap:8px}
.hero__media-tag .dot{width:7px;height:7px;border-radius:50%;background:#3ddc84;box-shadow:0 0 0 4px rgba(61,220,132,.2)}

/* ==========================================================================
   TRUST BAR
   ========================================================================== */
.trustbar{background:var(--color-surface);border-bottom:1px solid var(--color-line)}
.trustbar__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-5);padding-block:var(--sp-5)}
.trust-item{display:flex;gap:var(--sp-3);align-items:flex-start}
.trust-item__ic{flex:none;width:42px;height:42px;border-radius:var(--radius);background:var(--color-surface-2);display:flex;align-items:center;justify-content:center;color:var(--color-accent)}
.trust-item__ic svg{width:21px;height:21px}
.trust-item h4{font-size:var(--text-sm);font-weight:var(--fw-b);font-family:var(--font-body);margin-bottom:2px}
.trust-item p{font-size:var(--text-xs);color:var(--color-ink-3);line-height:1.45}

/* ==========================================================================
   SECTION HEADER
   ========================================================================== */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-5);margin-bottom:var(--sp-7)}
.section-head .eyebrow{margin-bottom:var(--sp-3);display:block}
.section-head__title{font-size:var(--text-2xl)}

/* ==========================================================================
   REFRIGERANT TYPE FINDER
   ========================================================================== */
.type-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-4)}
.type-card{position:relative;display:flex;flex-direction:column;gap:var(--sp-3);padding:var(--sp-5);
  background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-lg);
  transition:all var(--dur) var(--ease);overflow:hidden}
.type-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--color-accent),var(--color-cyan));transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease)}
.type-card:hover{border-color:var(--color-line-2);box-shadow:var(--shadow);transform:translateY(-3px)}
.type-card:hover::before{transform:scaleX(1)}
.type-card__code{font-family:var(--font-display);font-weight:var(--fw-x);font-size:var(--text-xl);letter-spacing:-.02em}
.type-card__name{font-size:var(--text-sm);color:var(--color-ink-2)}
.type-card__foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-ink-3)}
.type-card__foot .arrow{color:var(--color-accent);transition:transform var(--dur) var(--ease)}
.type-card:hover .arrow{transform:translateX(4px)}

/* ==========================================================================
   PRODUCT CARD + GRID
   ========================================================================== */
.product-grid{display:grid;grid-template-columns:repeat(var(--cols,4),1fr);gap:clamp(1rem,2vw,1.5rem)}
.card{position:relative;background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--dur) var(--ease);display:flex;flex-direction:column}
.card:hover{border-color:var(--color-line-2);box-shadow:var(--shadow);transform:translateY(-3px)}
.card__media{position:relative;aspect-ratio:1;background:#fff;overflow:hidden}
.card__media img{width:100%;height:100%;object-fit:contain;padding:14%;transition:transform .6s var(--ease),opacity var(--dur) var(--ease)}
.card:hover .card__media img{transform:scale(1.05)}
.card__media .card__img--alt{position:absolute;inset:0;opacity:0}
.card:hover .card__img--alt{opacity:1}
.card__badges{position:absolute;top:var(--sp-3);left:var(--sp-3);display:flex;gap:6px;z-index:2}
.card__body{padding:var(--sp-4);display:flex;flex-direction:column;gap:var(--sp-2);flex:1}
.card__chips{display:flex;gap:6px;flex-wrap:wrap}
.card__vendor{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-ink-3);text-transform:uppercase;letter-spacing:.08em}
.card__title{font-size:var(--text-sm);font-weight:var(--fw-sb);font-family:var(--font-body);line-height:1.35;color:var(--color-ink)}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:var(--sp-2)}
.card__cta{width:38px;height:38px;border-radius:var(--radius);background:var(--color-ink);color:#fff;display:flex;align-items:center;justify-content:center;transition:background var(--dur) var(--ease)}
.card__cta:hover{background:var(--color-accent)}

/* ---------- Price ------------------------------------------------------ */
.price{display:flex;align-items:baseline;gap:var(--sp-2);font-family:var(--font-display)}
.price__regular{font-weight:var(--fw-x);font-size:var(--text-lg)}
.price--on-sale .price__regular{color:var(--color-accent)}
.price__compare{color:var(--color-ink-3);text-decoration:line-through;font-size:var(--text-sm);font-weight:var(--fw-m)}

/* ==========================================================================
   PRODUCT PAGE  (reference-style layout)
   ========================================================================== */
.breadcrumb{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-ink-3);display:flex;gap:8px;padding-block:var(--sp-5) 0;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--color-accent)}
.breadcrumb .sep{opacity:.5}

.product{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,3.5vw,3rem);align-items:start;padding-top:var(--sp-5)}

/* ---- Gallery (white card, zoom, thumb strip + arrows) ---- */
.product__gallery{position:sticky;top:96px;background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-lg);padding:var(--sp-5);box-shadow:var(--shadow-sm)}
.gallery__stage{position:relative;aspect-ratio:1;border-radius:var(--radius);overflow:hidden;background:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:var(--sp-4)}
.gallery__stage img{width:100%;height:100%;object-fit:contain;padding:7%;transition:transform .5s var(--ease)}
.gallery__zoom{position:absolute;top:var(--sp-3);right:var(--sp-3);width:38px;height:38px;border-radius:var(--radius);background:var(--color-surface-2);border:1px solid var(--color-line);display:flex;align-items:center;justify-content:center;color:var(--color-ink-2);cursor:zoom-in;transition:all var(--dur) var(--ease)}
.gallery__zoom:hover{color:var(--color-accent);border-color:var(--color-line-2)}
.gallery__nav{display:flex;align-items:center;gap:var(--sp-2)}
.gallery__arrow{flex:none;width:34px;height:44px;border-radius:var(--radius);border:1px solid var(--color-line);background:#fff;color:var(--color-ink-2);display:flex;align-items:center;justify-content:center;transition:all var(--dur) var(--ease)}
.gallery__arrow:hover{border-color:var(--color-line-2);color:var(--color-accent)}
.gallery__arrow svg{width:16px;height:16px}
.gallery__arrow--prev svg{transform:rotate(180deg)}
.gallery__thumbs{display:flex;gap:var(--sp-2);overflow-x:auto;flex:1;scroll-behavior:smooth;scrollbar-width:none}
.gallery__thumbs::-webkit-scrollbar{display:none}
.gallery__thumb{flex:none;width:70px;height:70px;border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--color-line);cursor:pointer;transition:border-color var(--dur) var(--ease)}
.gallery__thumb.is-active{border-color:var(--color-accent);box-shadow:0 0 0 1px var(--color-accent)}
.gallery__thumb:hover{border-color:var(--color-line-2)}
.gallery__thumb img{width:100%;height:100%;object-fit:contain;padding:9%}

/* ---- Info column ---- */
.product__info{display:flex;flex-direction:column}
.trust-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-4);padding-bottom:var(--sp-5);margin-bottom:var(--sp-5);border-bottom:1px solid var(--color-line)}
.trust-strip--bottom{border-bottom:none;border-top:1px solid var(--color-line);padding-bottom:0;padding-top:var(--sp-5);margin-bottom:0;margin-top:var(--sp-5)}
.trust-strip__item{display:flex;gap:11px;align-items:flex-start}
.trust-strip__item svg{flex:none;width:26px;height:26px;color:var(--color-accent);margin-top:1px}
.trust-strip__item b{display:block;font-family:var(--font-body);font-size:var(--text-sm);font-weight:var(--fw-b);line-height:1.25}
.trust-strip__item span{font-size:var(--text-xs);color:var(--color-ink-3);line-height:1.4;display:block;margin-top:1px}

.product__head .eyebrow{display:block;margin-bottom:var(--sp-2);font-size:var(--text-xs)}
.product__title{font-size:var(--text-2xl);line-height:1.12;margin-bottom:var(--sp-4);letter-spacing:-.02em}
.product__keychips{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:var(--sp-5)}
.product__keychips .chip{font-size:var(--text-sm);padding:.45rem .8rem}
.product__keychips .chip svg{width:15px;height:15px}
.product__price{font-family:var(--font-display);font-weight:var(--fw-x);font-size:clamp(2.4rem,5vw,3.2rem);letter-spacing:-.03em;margin-bottom:var(--sp-3);display:flex;align-items:baseline;gap:var(--sp-2);color:var(--color-ink)}
.product__price .price__compare{font-size:var(--text-lg);color:var(--color-ink-3);text-decoration:line-through;font-weight:var(--fw-m)}
.product__price .save{font-family:var(--font-mono);font-size:var(--text-xs);color:#fff;background:var(--color-accent);padding:.2rem .5rem;border-radius:var(--radius-sm)}

.stock-line{display:inline-flex;align-items:center;gap:9px;font-size:var(--text-base);font-weight:var(--fw-m);color:var(--color-success);margin-bottom:var(--sp-5)}
.stock-line .dot{width:9px;height:9px;border-radius:50%;background:var(--color-success);box-shadow:0 0 0 4px var(--color-success-soft)}
.stock-line b{color:var(--color-success);font-weight:var(--fw-sb)}
.stock-line.out{color:var(--color-ink-3)}
.stock-line.out .dot{background:var(--color-ink-3);box-shadow:0 0 0 4px var(--color-surface-2)}
.buy-guarantee{display:flex;align-items:center;justify-content:center;gap:8px;font-size:var(--text-xs);color:var(--color-ink-3);margin-top:var(--sp-2);font-family:var(--font-mono)}
.buy-guarantee svg{width:15px;height:15px;color:var(--color-success)}

.variant{margin-bottom:var(--sp-4)}
.variant__label{font-family:var(--font-display);font-size:var(--text-sm);font-weight:var(--fw-sb);margin-bottom:var(--sp-3);display:block}
.variant__options{display:flex;flex-wrap:wrap;gap:var(--sp-2)}
.variant__opt{padding:.6rem 1.1rem;border-radius:var(--radius);background:#fff;box-shadow:inset 0 0 0 1px var(--color-line-2);font-size:var(--text-sm);font-weight:var(--fw-m);transition:all var(--dur) var(--ease);cursor:pointer}
.variant__opt:hover{box-shadow:inset 0 0 0 1px var(--color-ink)}
.variant__opt input{position:absolute;opacity:0}
.variant__opt:has(input:checked){background:var(--color-accent);color:#fff;box-shadow:none}

.product__buy{display:flex;gap:var(--sp-3);align-items:stretch;margin-bottom:var(--sp-3)}
.qty{display:inline-flex;align-items:center;background:#fff;box-shadow:inset 0 0 0 1px var(--color-line-2);border-radius:var(--radius);overflow:hidden}
.qty button{width:46px;height:54px;color:var(--color-ink-2);display:flex;align-items:center;justify-content:center}
.qty button:hover{color:var(--color-accent)}
.qty input{width:46px;height:54px;text-align:center;border:none;background:transparent;font-family:var(--font-mono);font-weight:var(--fw-m);-moz-appearance:textfield}
.qty input::-webkit-outer-spin-button,.qty input::-webkit-inner-spin-button{-webkit-appearance:none}
.product__buy .btn{flex:1;height:54px}

/* Safety callout */
.safety{display:flex;gap:var(--sp-3);align-items:flex-start;background:var(--color-warn-soft);border:1px solid #f0dcc0;border-left:3px solid var(--color-warn);border-radius:var(--radius);padding:var(--sp-4);margin-top:var(--sp-5)}
.safety svg{flex:none;width:20px;height:20px;color:var(--color-warn);margin-top:2px}
.safety h4{font-family:var(--font-body);font-size:var(--text-sm);font-weight:var(--fw-b);color:#7c3a06;margin-bottom:2px}
.safety p{font-size:var(--text-xs);color:#8a4a13;line-height:1.5}

/* ---- Lower grid: description + specifications side by side ---- */
.product-lower{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,4vw,3.5rem);margin-top:var(--sp-8);align-items:start}
.product-lower__title{font-size:var(--text-lg);margin-bottom:var(--sp-4)}
.product__desc{color:var(--color-ink-2);line-height:1.75;font-size:var(--text-sm)}
.product__desc p+p{margin-top:var(--sp-3)}
.product__desc strong{color:var(--color-ink);font-weight:var(--fw-sb)}
.product__desc ul{list-style:disc;padding-left:1.2rem;margin-top:var(--sp-3)}

.spec-table{width:100%;border:1px solid var(--color-line);border-radius:var(--radius-lg);overflow:hidden;background:var(--color-surface)}
.spec-table .row{display:grid;grid-template-columns:1fr 1.2fr;border-bottom:1px solid var(--color-line)}
.spec-table .row:last-child{border-bottom:none}
.spec-table .row:nth-child(even){background:var(--color-surface-2)}
.spec-table .k{padding:.8rem 1rem;font-family:var(--font-body);font-size:var(--text-sm);font-weight:var(--fw-sb);color:var(--color-ink-2)}
.spec-table .v{padding:.8rem 1rem;font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-ink);overflow-wrap:anywhere;word-break:break-word}
/* overflow safety: grid/flex children must be allowed to shrink */
.product__info,.product-lower>div,.card__body,.hero__content{min-width:0}
.product__keychips .chip{white-space:normal}
.card__title{overflow-wrap:anywhere}

/* ---- Feature cards ---- */
.feature-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-3);margin-top:var(--sp-6)}
.feature-card{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-lg);padding:var(--sp-4);transition:all var(--dur) var(--ease)}
.feature-card:hover{border-color:var(--color-line-2);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.feature-card svg{width:24px;height:24px;color:var(--color-accent);margin-bottom:var(--sp-3)}
.feature-card b{display:block;font-family:var(--font-display);font-size:var(--text-sm);margin-bottom:3px}
.feature-card span{font-size:var(--text-xs);color:var(--color-ink-3);line-height:1.45}

/* Accordion */
.accordion{margin-top:var(--sp-8);border-top:1px solid var(--color-line);max-width:760px}
.accordion__item{border-bottom:1px solid var(--color-line)}
.accordion__head{display:flex;justify-content:space-between;align-items:center;width:100%;padding:var(--sp-4) 0;font-family:var(--font-display);font-weight:var(--fw-sb);text-align:left}
.accordion__icon{transition:transform var(--dur) var(--ease);color:var(--color-accent)}
.accordion__item[open] .accordion__icon{transform:rotate(45deg)}
.accordion__body{padding-bottom:var(--sp-4);color:var(--color-ink-2);font-size:var(--text-sm);line-height:1.65}

/* ==========================================================================
   COLLECTION
   ========================================================================== */
.collection-hero{padding-block:var(--sp-8) var(--sp-5)}
.collection-hero h1{font-size:var(--text-3xl)}
.collection-hero p{color:var(--color-ink-2);margin-top:var(--sp-3);max-width:60ch}
.filter-bar{display:flex;justify-content:space-between;align-items:center;padding-block:var(--sp-4);border-block:1px solid var(--color-line);margin-bottom:var(--sp-6)}
.filter-bar__count{font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-ink-3)}
.filter-bar select{background:#fff;border:1px solid var(--color-line);border-radius:var(--radius);font-size:var(--text-sm);font-weight:var(--fw-m);padding:.5rem .8rem;cursor:pointer}
.pagination{display:flex;gap:var(--sp-3);justify-content:center;margin-top:var(--sp-8);font-family:var(--font-mono)}

/* ==========================================================================
   RICH / FEATURE
   ========================================================================== */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.feature__media{aspect-ratio:4/3;border-radius:var(--radius-lg);background:radial-gradient(circle at 40% 30%,#1b3a55,#0c1b2a);overflow:hidden;display:flex;align-items:center;justify-content:center}
.feature__media img{width:100%;height:100%;object-fit:contain;padding:6%}
.feature h2{font-size:var(--text-2xl);margin-block:var(--sp-3) var(--sp-4)}
.feature__list{display:flex;flex-direction:column;gap:var(--sp-3);margin-top:var(--sp-5)}
.feature__li{display:flex;gap:var(--sp-3);align-items:flex-start}
.feature__li svg{flex:none;width:20px;height:20px;color:var(--color-success);margin-top:3px}
.feature__li b{display:block;font-size:var(--text-sm)}
.feature__li span{font-size:var(--text-sm);color:var(--color-ink-2)}

/* ==========================================================================
   CART
   ========================================================================== */
.cart{display:grid;grid-template-columns:1.6fr .9fr;gap:var(--sp-8);align-items:start}
.cart-item{display:grid;grid-template-columns:92px 1fr auto;gap:var(--sp-4);padding:var(--sp-4);background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-lg);margin-bottom:var(--sp-3)}
.cart-item__media{aspect-ratio:1;border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--color-line)}
.cart-item__media img{width:100%;height:100%;object-fit:contain;padding:10%}
.cart-item__title{font-weight:var(--fw-sb);font-family:var(--font-display)}
.cart-item__meta{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-ink-3);margin-top:3px}
.cart__summary{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-lg);padding:var(--sp-6);position:sticky;top:96px}
.cart__summary h3{font-size:var(--text-lg);margin-bottom:var(--sp-4)}
.cart__row{display:flex;justify-content:space-between;padding-block:var(--sp-2);font-size:var(--text-sm)}
.cart__row--total{font-family:var(--font-display);font-size:var(--text-md);font-weight:var(--fw-b);border-top:1px solid var(--color-line);margin-top:var(--sp-3);padding-top:var(--sp-4)}
.cart-empty{text-align:center;padding-block:var(--sp-10)}
.cart-empty h1{font-size:var(--text-2xl);margin-bottom:var(--sp-4)}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer{background:var(--color-ink);color:rgba(255,255,255,.82);padding-block:var(--sp-8) var(--sp-5);margin-top:var(--sp-9);position:relative}
.footer::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--color-accent),var(--color-cyan))}
.footer__top{display:grid;grid-template-columns:1.5fr 2.5fr;gap:clamp(2rem,5vw,5rem);margin-bottom:var(--sp-7);padding-bottom:var(--sp-7);border-bottom:1px solid rgba(255,255,255,.1)}
.footer__brand{font-family:var(--font-display);font-weight:var(--fw-x);font-size:var(--text-xl);color:#fff;display:flex;align-items:center;gap:9px;margin-bottom:var(--sp-3)}
.footer__brand .logo-mark{width:30px;height:30px;border-radius:7px;background:linear-gradient(135deg,var(--color-accent),var(--color-cyan));display:flex;align-items:center;justify-content:center;font-size:.95rem;color:#fff}
.footer__tagline{color:rgba(255,255,255,.55);max-width:36ch;font-size:var(--text-sm);line-height:1.6}
.footer__contact{display:flex;flex-direction:column;gap:var(--sp-2);margin-top:var(--sp-5)}
.footer__contact li{display:flex;align-items:center;gap:10px;font-size:var(--text-sm);color:rgba(255,255,255,.7)}
.footer__contact svg{width:17px;height:17px;color:var(--color-cyan);flex:none}
.footer__contact a:hover{color:#fff}
.footer__certs{display:flex;gap:8px;margin-top:var(--sp-5);flex-wrap:wrap}
.footer__cert{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.06em;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-sm);padding:.32rem .55rem;color:rgba(255,255,255,.6)}
.footer__cols{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-5)}
.footer h4{font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.45);margin-bottom:var(--sp-4)}
.footer__links a{display:block;padding-block:6px;color:rgba(255,255,255,.78);font-size:var(--text-sm);transition:color var(--dur) var(--ease),padding-left var(--dur) var(--ease)}
.footer__links a:hover{color:#fff;padding-left:4px}
.footer__news-text{font-size:var(--text-sm);color:rgba(255,255,255,.55);margin-bottom:var(--sp-3);line-height:1.5}
.footer__news-row{display:flex;gap:var(--sp-2)}
.footer__news-row input{flex:1;min-width:0;padding:.8rem 1rem;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);color:#fff;font-size:var(--text-sm)}
.footer__news-row input::placeholder{color:rgba(255,255,255,.4)}
.footer__news-row .btn{flex:none;width:50px;padding:0}
.footer__bottom{padding-top:var(--sp-5);display:flex;justify-content:space-between;align-items:center;font-family:var(--font-mono);font-size:var(--text-xs);color:rgba(255,255,255,.45);flex-wrap:wrap;gap:var(--sp-4)}
.footer__policies{display:flex;gap:var(--sp-4);flex-wrap:wrap}
.footer__policies a{color:rgba(255,255,255,.6);transition:color var(--dur) var(--ease)}
.footer__policies a:hover{color:#fff}

/* ==========================================================================
   REVEAL
   ========================================================================== */
[data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}


/* ==========================================================================
   CTA BAND
   ========================================================================== */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);background:linear-gradient(180deg,#0c1b2a,#10263b);color:#fff;padding:clamp(2.5rem,6vw,4.5rem);text-align:center}
.cta-band__bg{position:absolute;inset:0;opacity:.5;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse 70% 80% at 50% 0%,#000,transparent)}
.cta-band__content{position:relative;max-width:620px;margin-inline:auto}
.cta-band__title{font-size:var(--text-2xl);margin-block:var(--sp-3) var(--sp-4)}
.cta-band__text{color:rgba(255,255,255,.72);margin-bottom:var(--sp-6)}
.cta-band__actions{display:flex;gap:var(--sp-3);justify-content:center;flex-wrap:wrap}


/* ==========================================================================
   SEARCH + AUTH PAGES
   ========================================================================== */
.search-form{display:flex;align-items:center;gap:var(--sp-2);max-width:640px;margin-inline:auto;background:var(--color-surface);border:1px solid var(--color-line-2);border-radius:var(--radius-pill);padding:.4rem .4rem .4rem 1.2rem;color:var(--color-ink-3)}
.search-form input{flex:1;border:none;background:none;font-size:var(--text-base);min-width:0}
.search-form .btn{border-radius:var(--radius-pill);flex:none}
.auth{max-width:440px;margin-inline:auto}
.auth__card{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-lg);padding:clamp(1.5rem,4vw,2.5rem);box-shadow:var(--shadow-sm)}
.auth h1{font-size:var(--text-2xl);margin-bottom:var(--sp-5);text-align:center}
.field{margin-bottom:var(--sp-4)}
.field label{display:block;font-family:var(--font-display);font-size:var(--text-sm);font-weight:var(--fw-sb);margin-bottom:var(--sp-2)}
.field input{width:100%;padding:.85rem 1rem;background:#fff;border:1px solid var(--color-line-2);border-radius:var(--radius);font-size:var(--text-base);transition:border-color var(--dur) var(--ease)}
.field input:focus{border-color:var(--color-accent);outline:none}
.auth__meta{display:flex;justify-content:space-between;align-items:center;margin-top:var(--sp-5);font-size:var(--text-sm);color:var(--color-ink-2)}
.auth__error{background:var(--color-warn-soft);border:1px solid #f0dcc0;color:#7c3a06;border-radius:var(--radius);padding:var(--sp-3) var(--sp-4);font-size:var(--text-sm);margin-bottom:var(--sp-4)}
.account-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:var(--sp-6);align-items:start}
.account-table{width:100%;border-collapse:collapse;background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-lg);overflow:hidden}
.account-table th,.account-table td{text-align:left;padding:.85rem 1rem;font-size:var(--text-sm);border-bottom:1px solid var(--color-line)}
.account-table th{font-family:var(--font-mono);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.08em;color:var(--color-ink-3);background:var(--color-surface-2)}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:1100px){
  .product-grid{grid-template-columns:repeat(3,1fr)!important}
  .type-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:990px){
  .hero__grid,.product,.cart,.feature,.product-lower{grid-template-columns:1fr}
  .product__gallery{position:static}
  .trustbar__grid{grid-template-columns:repeat(2,1fr)}
  .feature-cards{grid-template-columns:repeat(2,1fr)}
  .footer__top{grid-template-columns:1fr}.footer__cols{grid-template-columns:repeat(3,1fr)}
  .account-grid{grid-template-columns:1fr}
  .header__search{display:none}
  .header__nav{display:none}
  .header__burger{display:flex}
  .header__inner{grid-template-columns:auto 1fr auto}
}
@media (max-width:749px){
  :root{--gutter:1.15rem}
  /* Header */
  .header__inner{min-height:62px;gap:var(--sp-3)}
  .header__logo{font-size:var(--text-lg)}
  .header__logo .logo-mark{width:26px;height:26px}
  .header__actions{gap:var(--sp-3)}
  .header__icon{width:23px;height:23px}
  /* Utility bar: single line, horizontal scroll, readable */
  .utilitybar__inner{flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;gap:var(--sp-5);font-size:.72rem;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-block:2px}
  .utilitybar__inner::-webkit-scrollbar{display:none}
  /* Hero */
  .hero__grid{gap:var(--sp-6)}
  .hero__media{aspect-ratio:4/5;max-height:60vh}
  .hero__stats{gap:var(--sp-5)}
  .hero__cta .btn{flex:1}
  /* Sections */
  .section{padding-block:var(--sp-7)}
  .section-head{flex-direction:column;align-items:flex-start;gap:var(--sp-3)}
  .product-grid{grid-template-columns:repeat(2,1fr)!important}
  .type-grid{grid-template-columns:1fr 1fr}
  .feature-cards{grid-template-columns:1fr 1fr}
  .trustbar__grid{grid-template-columns:1fr 1fr;gap:var(--sp-4)}
  /* Product */
  .product__gallery{padding:var(--sp-4)}
  .product__title{font-size:var(--text-xl)}
  .product__price{font-size:var(--text-2xl)}
  .trust-strip{grid-template-columns:1fr;gap:var(--sp-3);text-align:left}
  .trust-strip__item{align-items:center}
  .trust-strip__item span{display:block}
  .product__buy{gap:var(--sp-2)}
  .product__buy .btn{font-size:var(--text-sm);padding-inline:var(--sp-3)}
  .qty button{width:42px}
  .qty input{width:40px}
  .product-lower{gap:var(--sp-6)}
  .spec-table .row{grid-template-columns:1fr 1fr}
  .spec-table .k,.spec-table .v{padding:.7rem .8rem;font-size:.8rem}
  /* Cart + footer */
  .cart{gap:var(--sp-5)}
  .cart-item{grid-template-columns:64px 1fr}
  .footer__cols{grid-template-columns:1fr 1fr;gap:var(--sp-5)}.footer__bottom{flex-direction:column;align-items:flex-start;text-align:left}
  .footer__bottom{flex-direction:column}
}
@media (max-width:420px){
  .product-grid{grid-template-columns:1fr!important}
  .type-grid{grid-template-columns:1fr}
  .feature-cards{grid-template-columns:1fr}
  .hero__cta{flex-direction:column}
  .hero__cta .btn{width:100%}
}

/* ==========================================================================
   MOBILE MENU DRAWER
   ========================================================================== */
.mobile-menu{position:fixed;inset:0;z-index:100;visibility:hidden;pointer-events:none}
.mobile-menu.is-open{visibility:visible;pointer-events:auto}
.mobile-menu__overlay{position:absolute;inset:0;background:rgba(12,27,42,.5);opacity:0;transition:opacity var(--dur) var(--ease)}
.mobile-menu.is-open .mobile-menu__overlay{opacity:1}
.mobile-menu__panel{position:absolute;top:0;left:0;height:100%;width:min(82vw,360px);background:var(--color-surface);box-shadow:var(--shadow-lg);transform:translateX(-100%);transition:transform var(--dur) var(--ease);display:flex;flex-direction:column;padding:var(--sp-5)}
.mobile-menu.is-open .mobile-menu__panel{transform:none}
.mobile-menu__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--sp-5);padding-bottom:var(--sp-4);border-bottom:1px solid var(--color-line)}
.mobile-menu__top .header__logo{font-size:var(--text-lg)}
.mobile-menu__links a{display:block;font-family:var(--font-display);font-weight:var(--fw-sb);font-size:var(--text-md);padding:var(--sp-3) 0;border-bottom:1px solid var(--color-line);color:var(--color-ink)}
.mobile-menu__search{display:flex;align-items:center;gap:8px;background:var(--color-surface-2);border:1px solid var(--color-line);border-radius:var(--radius-pill);padding:.7rem 1rem;margin-bottom:var(--sp-5);color:var(--color-ink-3)}
.mobile-menu__search input{border:none;background:none;width:100%;font-size:var(--text-sm)}
body.menu-open{overflow:hidden}