/* =========================================================
   product.css — أنماط صفحة "تفاصيل المنتج"
   ========================================================= */
:root{
  --primary:#3DA9A0; --primary-dark:#2F8B83; --secondary:#72CAC5;
  --dark:#0F1F30; --muted:#95ACB9; --success:#173C1C;
  --white:#FFFFFF; --surface:#F7FAFB; --text-soft:#5C7285;
  --line:rgba(149,172,185,.30); --line-strong:rgba(149,172,185,.48);
  --danger:#B23A3A; --danger-soft:rgba(178,58,58,.08);
  --radius-xl:28px; --radius-lg:24px; --radius-md:18px; --radius-sm:14px; --radius-pill:999px;
  --shadow-xs:0 1px 2px rgba(15,31,48,.04); --shadow-sm:0 2px 8px rgba(15,31,48,.035), 0 14px 30px -20px rgba(15,31,48,.20);
  --shadow-md:0 6px 18px -10px rgba(15,31,48,.16), 0 30px 60px -34px rgba(15,31,48,.32); --shadow-lg:0 18px 42px -20px rgba(15,31,48,.30), 0 60px 100px -60px rgba(15,31,48,.5);
  --ease:cubic-bezier(.22,.68,.32,1); --nav-h:78px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:'IBM Plex Sans Arabic',system-ui,sans-serif;font-size:16px;line-height:1.75;color:var(--dark);background:var(--white);overflow-x:hidden;-webkit-font-smoothing:antialiased}
body.is-locked{overflow:hidden}
body::before{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(900px 520px at 88% -12%, rgba(114,202,197,.12), transparent 62%),radial-gradient(760px 460px at 2% 4%, rgba(61,169,160,.07), transparent 60%)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,figure{margin:0}
[hidden]{display:none !important}
.container{width:100%;max-width:1280px;margin-inline:auto;padding-inline:clamp(18px,4.2vw,46px)}

/* Preloader */
.preloader{position:fixed;inset:0;z-index:9999;display:grid;place-items:center;background:#fff;transition:opacity .45s var(--ease), visibility .45s var(--ease)}
.preloader.is-hidden{opacity:0;visibility:hidden;pointer-events:none}
.loader-dots{position:relative;width:64px;height:64px}
.loader-dots span{position:absolute;top:50%;left:50%;width:8px;height:8px;margin:-4px 0 0 -4px;border-radius:50%;background:var(--primary);animation:preloaderPulse 1.2s ease-in-out infinite}
.loader-dots span:nth-child(1){--i:0;animation-delay:0s} .loader-dots span:nth-child(2){--i:1;animation-delay:.1s} .loader-dots span:nth-child(3){--i:2;animation-delay:.2s} .loader-dots span:nth-child(4){--i:3;animation-delay:.3s}
.loader-dots span:nth-child(5){--i:4;animation-delay:.4s} .loader-dots span:nth-child(6){--i:5;animation-delay:.5s} .loader-dots span:nth-child(7){--i:6;animation-delay:.6s} .loader-dots span:nth-child(8){--i:7;animation-delay:.7s}
.loader-dots span:nth-child(9){--i:8;animation-delay:.8s} .loader-dots span:nth-child(10){--i:9;animation-delay:.9s} .loader-dots span:nth-child(11){--i:10;animation-delay:1s} .loader-dots span:nth-child(12){--i:11;animation-delay:1.1s}
@keyframes preloaderPulse{0%,100%{opacity:.2;transform:rotate(calc(var(--i) * 30deg)) translateY(-26px) scale(.75)}50%{opacity:1;transform:rotate(calc(var(--i) * 30deg)) translateY(-26px) scale(1.1)}}

/* Navbar */
.navbar{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.82);backdrop-filter:blur(18px) saturate(150%);-webkit-backdrop-filter:blur(18px) saturate(150%);border-bottom:1px solid var(--line);transition:box-shadow .4s var(--ease), border-color .4s var(--ease)}
.navbar.is-scrolled{border-bottom-color:transparent;box-shadow:0 10px 34px -22px rgba(15,31,48,.45)}
.nav-inner{display:flex;align-items:center;gap:clamp(10px,1.6vw,22px);min-height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;flex-shrink:0;padding-block:6px}
.brand-logo{height:40px;width:auto;aspect-ratio:3 / 1;object-fit:contain}
.nav-links{display:flex;align-items:center;gap:clamp(4px,1vw,14px);margin-inline-start:auto}
.nav-link{position:relative;padding:9px 6px;font-size:.94rem;font-weight:500;color:var(--text-soft);white-space:nowrap;transition:color .3s var(--ease)}
.nav-link::after{content:'';position:absolute;inset-inline:6px;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));transform:scaleX(0);transform-origin:center;transition:transform .38s var(--ease)}
.nav-link:hover{color:var(--dark)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-inline-start:clamp(8px,1.4vw,20px)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-pill);font-weight:600;white-space:nowrap;transition:all .3s var(--ease)}
.btn-orders{padding:10px 22px;font-size:.88rem;color:var(--white);background:linear-gradient(135deg,var(--primary),var(--secondary));box-shadow:0 10px 22px -12px rgba(61,169,160,.85)}
.btn-orders:hover{transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(61,169,160,.95)}
.lang-toggle{display:inline-flex;align-items:center;gap:7px;padding:9px 16px;font-size:.84rem;font-weight:600;color:var(--text-soft);background:var(--white);border:1px solid var(--line);border-radius:var(--radius-pill);transition:all .3s var(--ease)}
.lang-toggle:hover{color:var(--primary);border-color:rgba(61,169,160,.55);background:rgba(61,169,160,.05)}
.lang-toggle svg{width:15px;height:15px;flex-shrink:0}
.menu-toggle{display:none;width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:var(--white);align-items:center;justify-content:center;flex-direction:column;gap:5px;padding:0;color:var(--dark);transition:all .3s var(--ease);}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:currentColor;transition:transform .3s var(--ease), opacity .3s var(--ease);}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Page Head */
.page-head{padding-block:clamp(24px,3.4vw,44px) clamp(18px,2.6vw,30px)}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:.84rem;color:var(--muted);margin-bottom:6px}
.breadcrumb a{color:var(--text-soft);transition:color .3s var(--ease);padding:3px 2px}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.55;display:grid;place-items:center}
.breadcrumb .sep svg{width:13px;height:13px}
.breadcrumb .current{color:var(--dark);font-weight:600}
[dir="rtl"] .breadcrumb .sep svg{transform:scaleX(-1)}

/* Product Layout */
.product-wrap{padding-bottom:clamp(60px,8vw,110px)}
.product-layout{display:grid;grid-template-columns:minmax(0, 1.12fr) minmax(0, 1fr);gap:clamp(26px,4vw,58px);align-items:flex-start}
.gallery{display:flex;flex-direction:column;gap:14px}
.gallery-main{position:relative;aspect-ratio:1 / 1;border-radius:var(--radius-xl);overflow:hidden;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.gallery-main img{width:100%;height:100%;object-fit:cover;-webkit-user-drag:none;transition:transform .8s var(--ease), opacity .35s var(--ease)}
.gallery-main:hover img{transform:scale(1.03)}
.gallery-main img.is-swapping{opacity:.35}
.gallery-tools{position:absolute;bottom:16px;inset-inline-start:16px;display:flex;gap:8px;z-index:2}
.viewer-chip{display:inline-flex;align-items:center;gap:6px;padding:8px 15px;font-size:.76rem;font-weight:700;letter-spacing:.03em;color:var(--dark);background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.7);border-radius:var(--radius-pill);box-shadow:0 8px 20px -12px rgba(15,31,48,.7);transition:all .3s var(--ease)}
.viewer-chip svg{width:14px;height:14px;flex-shrink:0}
.viewer-chip:hover{background:var(--primary);color:var(--white);border-color:transparent;transform:translateY(-1px)}
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:12px}
.thumb{position:relative;aspect-ratio:1 / 1;border-radius:var(--radius-md);overflow:hidden;background:var(--surface);border:2px solid transparent;cursor:pointer;transition:border-color .3s var(--ease), transform .3s var(--ease)}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb:hover{transform:translateY(-2px);border-color:rgba(61,169,160,.45)}
.thumb.is-active{border-color:var(--primary);box-shadow:0 8px 18px -12px rgba(61,169,160,.9)}

/* Info */
.info{display:flex;flex-direction:column;gap:22px}
.info-head{display:flex;flex-direction:column;gap:12px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.78rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--primary)}
html[lang="ar"] .eyebrow{letter-spacing:0;text-transform:none}
.eyebrow::before{content:'';width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--secondary))}
.info-head h1{font-size:clamp(1.45rem,3.1vw,2rem);font-weight:700;line-height:1.35;letter-spacing:-.015em}
.info-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.meta-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;font-size:.74rem;font-weight:600;color:var(--text-soft);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill)}
.info-desc{font-size:.95rem;line-height:2;color:var(--text-soft)}
.price-block{display:flex;align-items:baseline;gap:12px;padding:18px 22px;background:linear-gradient(135deg, rgba(61,169,160,.07) 0%, rgba(114,202,197,.05) 100%);border:1px solid rgba(61,169,160,.20);border-radius:var(--radius-lg)}
.price-now{font-size:clamp(1.4rem,2.6vw,1.85rem);font-weight:700;color:var(--dark);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.price-old{font-size:.95rem;color:var(--muted);text-decoration:line-through;font-variant-numeric:tabular-nums}
.price-save{margin-inline-start:auto;padding:5px 12px;font-size:.74rem;font-weight:700;color:var(--white);background:linear-gradient(135deg,var(--success),#2F6B4F);border-radius:var(--radius-pill);white-space:nowrap}

/* Custom Fields */
.custom-block{padding:22px 24px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-xs)}
.custom-block h3{font-size:.98rem;font-weight:700;margin-bottom:4px}
.custom-block .custom-hint{font-size:.82rem;color:var(--text-soft);margin-bottom:16px}
.custom-fields{display:flex;flex-direction:column;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field-label{display:flex;align-items:center;gap:6px;font-size:.84rem;font-weight:600;color:var(--dark)}
.field-label .req{color:var(--primary);font-weight:700}
.field-hint{font-size:.76rem;color:var(--muted)}
.field input[type="text"], .field input[type="email"], .field input[type="tel"], .field textarea, .field select{width:100%;padding:12px 15px;font:inherit;font-size:.9rem;color:var(--dark);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);outline:none;transition:all .3s var(--ease)}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235C7285' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-inline-end:42px;cursor:pointer}
[dir="rtl"] .field select{background-position:left 14px center;padding-inline-end:15px;padding-inline-start:42px}
.field input:focus, .field textarea:focus, .field select:focus{border-color:rgba(61,169,160,.7);background:var(--white);box-shadow:0 0 0 4px rgba(61,169,160,.09)}

/* Radio Options */
.radio-row{display:flex;flex-wrap:wrap;gap:8px}
.radio-opt{position:relative;display:inline-flex;align-items:center;gap:8px;padding:9px 15px;font-size:.85rem;font-weight:500;color:var(--text-soft);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);cursor:pointer;transition:all .28s var(--ease)}
.radio-opt input{position:absolute;opacity:0;pointer-events:none}
.radio-opt::before{content:'';width:14px;height:14px;border-radius:50%;border:2px solid var(--line-strong);background:var(--white);flex-shrink:0;transition:all .28s var(--ease)}
.radio-opt:hover{border-color:rgba(61,169,160,.45);color:var(--dark)}
.radio-opt.is-checked{color:var(--white);background:linear-gradient(135deg,var(--primary),var(--secondary));border-color:transparent;box-shadow:0 10px 20px -12px rgba(61,169,160,.85)}
.radio-opt.is-checked::before{background:var(--white);border-color:var(--white);box-shadow:inset 0 0 0 3px var(--primary)}

/* Actions */
.info-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-primary {flex: 1; min-width: 200px; padding: 15px 26px; font-size: .95rem; color: var(--white); background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%); box-shadow: 0 16px 30px -14px rgba(61,169,160,.85); border-radius: var(--radius-pill); display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 54px;}
.btn-primary svg {width: 18px !important; height: 18px !important; flex-shrink: 0;}
.btn svg {width: 16px !important; height: 16px !important; flex-shrink: 0;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 38px -16px rgba(61,169,160,.95)}
.btn-primary:disabled{opacity:.7;cursor:not-allowed;transform:none}
.info-note{display:flex;align-items:flex-start;gap:10px;padding:14px 16px;font-size:.8rem;line-height:1.75;color:var(--text-soft);background:var(--surface);border-radius:var(--radius-md);border:1px solid var(--line)}
.info-note svg{width:16px;height:16px;color:var(--primary);flex-shrink:0;margin-top:3px}

/* Modal */
.modal{position:fixed;inset:0;z-index:150;display:flex;align-items:flex-start;justify-content:center;padding:clamp(12px,3vw,40px);overflow-y:auto;background:rgba(15,31,48,.55);backdrop-filter:blur(6px);opacity:0;transition:opacity .34s var(--ease)}
.modal.is-open{opacity:1}
.modal-panel{position:relative;width:100%;max-width:680px;margin:auto;background:var(--white);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);transform:translateY(18px) scale(.98);opacity:0;transition:transform .38s var(--ease), opacity .38s var(--ease)}
.modal.is-open .modal-panel{transform:translateY(0) scale(1);opacity:1}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:clamp(22px,3vw,30px) clamp(22px,3vw,32px) 18px;border-bottom:1px solid var(--line)}
.modal-head h2{font-size:clamp(1.1rem,2vw,1.3rem);font-weight:700;line-height:1.4;margin-bottom:4px}
.modal-head p{font-size:.85rem;color:var(--text-soft);line-height:1.75}
.modal-close{flex-shrink:0;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:var(--text-soft);background:var(--surface);border:1px solid var(--line);transition:all .3s var(--ease)}
.modal-close:hover{color:var(--white);background:var(--primary);border-color:var(--primary);transform:rotate(90deg)}
.modal-close svg{width:16px;height:16px}
.modal-body{padding:clamp(22px,3vw,30px) clamp(22px,3vw,32px)}
.modal-foot{padding:18px clamp(22px,3vw,32px) clamp(22px,3vw,30px);border-top:1px solid var(--line);display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-grid .span-2{grid-column:1 / -1}
.form-section-title{grid-column:1 / -1;font-size:.82rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--primary);padding-top:6px}
html[lang="ar"] .form-section-title{letter-spacing:0;text-transform:none}

/* Success */
.success-box{display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:20px 10px 8px}
.success-icon{width:78px;height:78px;border-radius:50%;display:grid;place-items:center;color:var(--white);background:linear-gradient(135deg,var(--primary),var(--secondary));box-shadow:0 20px 40px -20px rgba(61,169,160,.95)}
.success-icon svg{width:34px;height:34px}
.success-box h3{font-size:1.15rem;font-weight:700}
.success-box p{font-size:.9rem;line-height:1.85;color:var(--text-soft);max-width:44ch}
.success-box .order-ref{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;font-size:.85rem;font-weight:700;color:var(--primary-dark);background:rgba(61,169,160,.10);border-radius:var(--radius-pill);font-variant-numeric:tabular-nums;margin-top:4px}

/* Track */
.track-search{display:flex;gap:10px;align-items:stretch}
.track-search input{flex:1;padding:13px 16px;font:inherit;font-size:.92rem;color:var(--dark);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);outline:none;transition:border-color .3s var(--ease)}
.track-search input:focus{border-color:rgba(61,169,160,.7);background:var(--white);box-shadow:0 0 0 4px rgba(61,169,160,.09)}
.track-search button{padding:0 24px;font-size:.88rem;font-weight:600;color:var(--white);background:var(--dark);border-radius:var(--radius-sm);transition:all .3s var(--ease);white-space:nowrap}
.track-search button:hover{background:var(--primary)}
.track-search button:disabled{opacity:.6;cursor:not-allowed}
.track-results{margin-top:22px}
.track-hint{font-size:.82rem;color:var(--muted);text-align:center;padding:26px 12px}
.order-card{padding:18px 20px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-xs);transition:all .3s var(--ease)}
.order-card + .order-card{margin-top:12px}
.order-card:hover{border-color:rgba(61,169,160,.35);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.order-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.order-ref{font-size:.78rem;font-weight:700;color:var(--muted);letter-spacing:.03em;font-variant-numeric:tabular-nums}
.order-product{font-size:.98rem;font-weight:700;color:var(--dark);line-height:1.5;margin-top:3px}
.status-pill{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;font-size:.74rem;font-weight:700;border-radius:var(--radius-pill);white-space:nowrap}
.status-pill svg{width:12px;height:12px}
.status-pill.is-pending{color:#7A5A16;background:rgba(202,168,114,.18)}
.status-pill.is-reviewed{color:var(--success);background:rgba(23,60,28,.10)}
.status-pill.is-cancelled{color:var(--danger);background:var(--danger-soft)}
.order-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px 18px;font-size:.82rem}
.order-meta dt{color:var(--muted);font-weight:600;margin-bottom:2px;font-size:.74rem}
.order-meta dd{margin:0;color:var(--dark);font-weight:500;line-height:1.6;word-break:break-word}

/* 3D / 360 Viewer - Responsive Modal */
.viewer{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;background:rgba(15,31,48,.85);backdrop-filter:blur(10px);opacity:0;transition:opacity .38s var(--ease)}
.viewer.is-open{opacity:1}
.viewer-panel{position:relative;width:90vw;height:85vh;max-width:1200px;background:radial-gradient(120% 90% at 50% 0%, #16304A 0%, var(--dark) 55%, #08131F 100%);border-radius:var(--radius-xl);overflow:hidden;box-shadow:0 40px 100px -20px rgba(0,0,0,0.8);transform:scale(0.95);transition:transform .38s var(--ease);display:flex;flex-direction:column}
.viewer.is-open .viewer-panel{transform:scale(1)}
.viewer-top{position:relative;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:clamp(16px,2.4vw,24px) clamp(18px,4.2vw,46px);background:linear-gradient(to bottom, rgba(8,19,31,.85), transparent);pointer-events:none}
.viewer-meta{min-width:0}
.viewer-kind{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;font-size:.72rem;font-weight:700;letter-spacing:.05em;color:var(--dark);background:linear-gradient(135deg,var(--secondary),var(--primary));border-radius:var(--radius-pill);margin-bottom:9px}
.viewer-name{font-size:clamp(.98rem,1.6vw,1.22rem);font-weight:700;color:var(--white);line-height:1.45;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.viewer-price{margin-top:3px;font-size:.84rem;font-weight:600;color:var(--secondary);font-variant-numeric:tabular-nums}
.viewer-hint{position:absolute;left:50%;bottom:clamp(20px,4vw,38px);transform:translateX(-50%);z-index:4;display:inline-flex;align-items:center;gap:10px;padding:12px 22px;font-size:.82rem;font-weight:600;color:var(--white);background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);border-radius:var(--radius-pill);backdrop-filter:blur(16px);box-shadow:0 20px 44px -26px rgba(0,0,0,.9);pointer-events:none;white-space:nowrap;animation:hintPulse 3.2s ease-in-out infinite}
@keyframes hintPulse{0%,100%{opacity:.78}50%{opacity:1}}
.viewer-hint svg{width:16px;height:16px;flex-shrink:0}
[dir="rtl"] .viewer-hint svg{transform:scaleX(-1)}
.viewer-stage{position:relative;flex:1;min-height:0;z-index:2}
.viewer-stage model-viewer{width:100%;height:100%;background:transparent;--poster-color:transparent;--progress-bar-color:transparent}
.viewer-stage #panoHost{width:100%;height:100%}
.viewer-loading{position:absolute;inset:0;z-index:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;background:var(--dark);transition:opacity .4s var(--ease), visibility .4s}
.viewer-loading.is-hidden{opacity:0;visibility:hidden}
.viewer-loading .sk-orb{width:74px;height:74px;border-radius:50%;background:rgba(255,255,255,.07);position:relative;overflow:hidden}
.viewer-loading .sk-orb::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,0) 0%,rgba(114,202,197,.5) 50%,rgba(255,255,255,0) 100%);transform:translateX(-100%);animation:shimmer 1.5s infinite}
@keyframes shimmer{100%{transform:translateX(100%)}}
.viewer-loading p{font-size:.84rem;font-weight:600;color:var(--muted)}
.viewer-error{position:absolute;inset:0;z-index:5;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:30px;color:var(--muted)}

@media (max-width: 880px) {
  .viewer { background: var(--dark); backdrop-filter: none; }
  .viewer-panel { width: 100vw; height: 100vh; max-width: none; border-radius: 0; box-shadow: none; transform: none; }
  .viewer.is-open .viewer-panel { transform: none; }
}

/* Empty */
.empty{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;padding:clamp(34px,6vw,56px) 24px;border:1px dashed var(--line);border-radius:var(--radius-xl);background:linear-gradient(180deg,var(--white) 0%, #FAFCFD 100%)}
.empty-icon{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;color:var(--primary);background:rgba(61,169,160,.09)}
.empty h3{font-size:1rem;font-weight:700}

/* Footer */
.site-footer{margin-top:clamp(30px,5vw,60px);padding-block:clamp(44px,6vw,70px) 30px;background:var(--dark);color:rgba(255,255,255,.72)}
.footer-top{display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.10)}
.footer-brand{max-width:320px}
.footer-logo{font-size:1.25rem;font-weight:700;color:var(--white)}
.footer-logo span{color:var(--secondary)}
.footer-brand p{margin-top:10px;font-size:.87rem;line-height:1.9;color:var(--muted)}
.footer-links{display:flex;flex-wrap:wrap;gap:10px 26px;align-items:flex-start}
.footer-links a{font-size:.88rem;color:var(--muted);transition:color .3s var(--ease)}
.footer-links a:hover{color:var(--secondary)}
.footer-copy{padding-top:22px;font-size:.8rem;color:rgba(149,172,185,.75);text-align:center}

/* Responsive */
@media (max-width:980px){
  .menu-toggle{display:inline-flex}
  .nav-links{position:absolute;top:100%;inset-inline:0;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:10px clamp(18px,4.2vw,46px) 20px;background:rgba(255,255,255,.97);backdrop-filter:blur(20px);border-bottom:1px solid var(--line);box-shadow:0 26px 44px -30px rgba(15,31,48,.5);opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .32s var(--ease), transform .32s var(--ease), visibility .32s}
  .nav-links.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-link{padding:13px 4px;font-size:1rem}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--primary)}
  .nav-actions{margin-inline-start:auto}
  .btn-orders{padding:9px 18px;font-size:.84rem}
}
@media (max-width:880px){
  .product-layout{grid-template-columns:1fr;gap:28px}
  .gallery-main{aspect-ratio:4 / 3.4}
}
@media (max-width:640px){
  .form-grid{grid-template-columns:1fr}
  .modal-foot{flex-direction:column-reverse}
  .modal-foot .btn{width:100%}
  .track-search{flex-direction:column}
  .track-search button{padding:13px 24px}
}
@media (max-width:560px){
  :root{--nav-h:70px}
  .thumbs{grid-template-columns:repeat(auto-fill,minmax(70px,1fr));gap:9px}
}