/* =====================================================================
   ألوان مأخوذة من الأحجار نفسها
   كرارا (الخلفية) — نيرو ماركينا (النص) — عِرق رمادي — فيردي جواتيمالا (الأساسي) — نحاسي (الأسعار)
   ===================================================================== */
:root {
  --carrara: #F3F4F2;
  --surface: #FFFFFF;
  --ink: #1C1F22;
  --muted: #5A6169;
  --vein: #8A9097;
  --line: #D5D8DA;
  --verde: #2F5D50;
  --verde-dark: #234A3F;
  --verde-tint: #E3ECE8;
  --brass: #84652F;
  --danger: #A33A2B;
  --danger-tint: #F7E7E4;

  --font-body: 'IBM Plex Sans Arabic', 'Segoe UI', Tahoma, sans-serif;
  --font-display: 'Reem Kufi', 'IBM Plex Sans Arabic', sans-serif;

  --s-1: 0.8rem;
  --s0: 1rem;
  --s1: 1.25rem;
  --s2: 1.563rem;
  --s3: 1.953rem;
  --s4: 2.441rem;
  --s5: 3.052rem;

  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 32px);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--carrara);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--s0);
  line-height: 1.75;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--verde); text-underline-offset: 3px; }
a:hover { color: var(--verde-dark); }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.3; margin: 0 0 0.5em; }
h1 { font-size: var(--s4); }
h2 { font-size: var(--s2); }
h3 { font-size: var(--s1); }
p { margin: 0 0 1em; max-width: 68ch; }
:focus-visible { outline: 3px solid var(--verde); outline-offset: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gutter); }
.muted { color: var(--muted); }
.small { font-size: var(--s-1); }
.skip { position: absolute; top: 8px; inset-inline-start: 8px; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 50; clip-path: inset(50%); }
.skip:focus { clip-path: none; }
/* إخفاء بصري مع بقاء العنصر متاحاً للوحة المفاتيح وقارئ الشاشة */
.chip input, .variant input { position: absolute; width: 1px; height: 1px; min-height: 0; padding: 0; margin: 0; opacity: 0; overflow: hidden; clip-path: inset(50%); pointer-events: none; }

/* ---------- الرأس ---------- */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { font-family: var(--font-display); font-size: var(--s1); font-weight: 700; color: var(--ink); text-decoration: none; }
.site-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.site-nav a { color: var(--ink); text-decoration: none; padding: 8px 12px; border-radius: 2px; }
.site-nav a:hover { background: var(--carrara); }
.site-nav a[aria-current="page"] { box-shadow: inset 0 -3px 0 var(--verde); }
[hidden] { display: none !important; }
.badge { display: inline-grid; place-items: center; min-width: 22px; height: 22px; padding: 0 6px; margin-inline-start: 4px; background: var(--verde); color: #fff; border-radius: 11px; font-size: 0.8rem; }
@media (max-width: 640px) {
  .header-inner { padding-block: 8px; }
  .site-nav { width: 100%; overflow-x: auto; flex-wrap: nowrap; margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); }
  .site-nav a { white-space: nowrap; padding: 6px 10px; }
}

/* ---------- الأزرار ---------- */
.btn, .btn-ghost, .btn-text { font: inherit; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.btn { background: var(--verde); color: #fff; border: 0; padding: 12px 22px; border-radius: 3px; font-weight: 600; min-height: 48px; }
.btn:hover { background: var(--verde-dark); color: #fff; }
.btn:disabled { opacity: 0.6; cursor: default; }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--ink); padding: 10px 18px; border-radius: 3px; min-height: 48px; }
.btn-ghost:hover { background: var(--ink); color: #fff; }
.btn-text { background: none; border: 0; padding: 8px 0; color: var(--verde); text-decoration: underline; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 16px; }

/* ---------- اللوح (العنصر المميز) ---------- */
.slab { position: relative; }
.slab-face { aspect-ratio: 3 / 2; overflow: hidden; background: var(--line); border-radius: 2px 2px 0 0; }
.slab-svg, .slab-img { width: 100%; height: 100%; object-fit: cover; }
.slab-edge {
  height: var(--edge);
  background: linear-gradient(var(--edge-color), color-mix(in srgb, var(--edge-color) 70%, #000));
  border-radius: 0 0 2px 2px;
  transform: perspective(300px) rotateX(35deg);
  transform-origin: top;
}

/* ---------- البطل: لوح كامل مع حاسبة ---------- */
.hero { position: relative; margin: 24px calc(var(--gutter) * -1) 0; min-height: 520px; display: grid; overflow: hidden; }
.hero-slab { position: absolute; inset: 0; }
.hero-slab .slab-svg { width: 100%; height: 100%; }
.hero-slab::after {
  /* لمعة تمر مرة واحدة على السطح المصقول عند التحميل */
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(105deg, transparent 35%, rgba(255,255,255,0.55) 50%, transparent 65%);
  transform: translateX(-120%);
  animation: sheen 2.2s 0.4s ease-out forwards;
}
@keyframes sheen { to { transform: translateX(120%); } }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 32px; align-items: end; padding: 48px var(--gutter); }
.hero-text { background: rgba(243,244,242,0.88); padding: 24px 28px; border-inline-start: 6px solid var(--verde); max-width: 560px; align-self: start; }
.hero-text h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin-bottom: 12px; }
.hero-text p { font-size: var(--s1); margin: 0; }
.quick-calc { background: var(--surface); padding: 24px; border: 1.5px solid var(--ink); }
.quick-calc h2 { font-size: var(--s2); }
.dims { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: end; }
.times { font-size: var(--s2); padding-bottom: 8px; color: var(--vein); }
.quick-calc output { display: block; min-height: 3.5em; margin: 16px 0; padding: 12px 14px; background: var(--verde-tint); }
@media (max-width: 860px) {
  .hero { min-height: 0; }
  .hero-inner { grid-template-columns: 1fr; padding: 24px var(--gutter); }
}

/* ---------- الأقسام ---------- */
.section { padding-block: 48px; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; }
.page-title { margin-top: 8px; }
.lead { font-size: var(--s1); color: var(--muted); }
.narrow { max-width: 760px; }
.state { text-align: center; padding-block: 72px; }
.state p { margin-inline: auto; }

/* ---------- شبكة المنتجات ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 40px 28px; margin-top: 20px; }
.tile { color: var(--ink); text-decoration: none; display: block; }
.tile:hover h3 { color: var(--verde); }
.tile-meta { padding-top: 14px; }
.tile-meta h3 { margin-bottom: 2px; }
.tile-sub { color: var(--muted); margin: 0; font-size: 0.95rem; }
.tile-price { margin: 4px 0 0; }
.tile-price strong, .variant em { color: var(--brass); font-style: normal; }

/* ---------- الخطوات (تسلسل حقيقي فاستحقت الترقيم) ---------- */
.steps { list-style: none; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.steps li { counter-increment: step; border-top: 2px solid var(--ink); padding-top: 12px; }
.steps li::before { content: counter(step); font-family: var(--font-display); font-size: var(--s4); color: var(--verde); line-height: 1; display: block; margin-bottom: 8px; }
.steps p { color: var(--muted); }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

.terms dl { margin: 16px 0 0; }
.terms dl > div { display: grid; grid-template-columns: 220px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.terms dt { font-weight: 600; }
.terms dd { margin: 0; }
@media (max-width: 640px) { .terms dl > div { grid-template-columns: 1fr; gap: 4px; } }

/* ---------- الفلاتر ---------- */
.filters { display: grid; gap: 14px; margin: 16px 0 8px; }
.filters fieldset { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.filters legend { float: right; min-width: 90px; font-weight: 600; padding: 6px 0; }
.chip, .variant { position: relative; }
.chip span { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border: 1px solid var(--line); background: var(--surface); border-radius: 2px; cursor: pointer; }
.chip input:checked + span { background: var(--ink); color: #fff; border-color: var(--ink); }
.chip input:focus-visible + span { outline: 3px solid var(--verde); outline-offset: 2px; }
.swatch { width: 14px; height: 14px; background: var(--sw); border: 1px solid rgba(0,0,0,0.25); display: inline-block; }

/* ---------- صفحة المنتج ---------- */
.crumbs { display: flex; gap: 8px; padding-top: 20px; color: var(--muted); font-size: 0.95rem; }
.product { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; padding-block: 16px 48px; align-items: start; }
.product-visual { position: sticky; top: 88px; }
.product-visual .muted { margin-top: 18px; }
.thumbs { display: flex; gap: 8px; margin-top: 18px; }
.thumb { width: 72px; padding: 0; border: 1px solid var(--line); background: none; cursor: pointer; }
.product-info h1 { margin-bottom: 8px; }
.specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; margin: 20px 0; border-top: 1px solid var(--line); }
.specs > div { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.specs dt { color: var(--muted); }
.specs dd { margin: 0; font-weight: 500; }
.variants { border: 0; padding: 0; margin: 24px 0 8px; display: grid; gap: 8px; }
.variants legend { font-weight: 600; margin-bottom: 8px; }
.variant span { display: flex; justify-content: space-between; gap: 12px; padding: 12px 16px; background: var(--surface); border: 1px solid var(--line); cursor: pointer; }
.variant input:checked + span { border: 2px solid var(--verde); padding: 11px 15px; }
.variant input:focus-visible + span { outline: 3px solid var(--verde); outline-offset: 2px; }
.stock { font-weight: 500; }
.stock.in { color: var(--verde); }
.stock.low { color: var(--brass); }
.stock.out { color: var(--danger); }
.calc { background: var(--surface); border: 1.5px solid var(--ink); padding: 24px; margin-top: 24px; }
.calc h2 { margin-bottom: 4px; }
.row { display: grid; grid-template-columns: 1.3fr 1fr 1fr auto; gap: 10px; align-items: end; margin-top: 12px; }
.row-del { font: inherit; background: none; border: 0; color: var(--danger); cursor: pointer; padding: 10px 4px; }
@media (max-width: 520px) { .row { grid-template-columns: 1fr 1fr; } .row-label { grid-column: 1 / -1; } }
.calc-sum { margin-top: 16px; }
.calc-sum dl, .totals { margin: 0; }
.calc-sum dl > div, .totals > div { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed var(--line); }
.calc-sum dd, .totals dd { margin: 0; font-variant-numeric: tabular-nums; }
.sum-total { font-size: var(--s1); font-weight: 600; border-bottom: 0 !important; }
.sum-total dd { color: var(--brass); }
.secondary { margin-top: 20px; }
.installed { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
@media (max-width: 860px) {
  .product { grid-template-columns: 1fr; gap: 24px; }
  .product-visual { position: static; }
}

/* ---------- النماذج ---------- */
label { display: grid; gap: 6px; font-weight: 500; margin-bottom: 14px; }
input, select, textarea {
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--vein); border-radius: 2px; padding: 10px 12px; min-height: 46px; width: 100%;
}
textarea { resize: vertical; min-height: 0; }
input:focus, select:focus, textarea:focus { border-color: var(--verde); outline: 2px solid var(--verde); outline-offset: 0; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
@media (max-width: 560px) { .two { grid-template-columns: 1fr; } }
.form-error { background: var(--danger-tint); color: var(--danger); padding: 10px 14px; border-inline-start: 4px solid var(--danger); }
.form-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.files small { font-weight: 400; color: var(--muted); }
.file-list { list-style: none; padding: 0; margin: -6px 0 12px; color: var(--muted); }
.file-list .bad { color: var(--danger); }
.option { display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border: 1px solid var(--line); background: var(--surface); margin-bottom: 8px; cursor: pointer; font-weight: 400; }
.option input { width: auto; min-height: 0; margin-top: 6px; accent-color: var(--verde); }
.option span { display: grid; }
.option small { color: var(--muted); }
.fulfil { border: 0; padding: 0; margin: 0 0 14px; }
.fulfil legend { font-weight: 600; margin-bottom: 8px; }
.inline-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 0 12px; align-items: end; }
.inline-form .form-actions { margin: 0 0 14px; }
.inline-form .form-error { grid-column: 1 / -1; }
@media (max-width: 640px) { .inline-form { grid-template-columns: 1fr; } }

dialog { border: 1.5px solid var(--ink); padding: 24px; width: min(460px, calc(100vw - 32px)); background: var(--surface); color: var(--ink); }
dialog::backdrop { background: rgba(28,31,34,0.55); }

/* ---------- السلة ---------- */
.cart { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; }
.cart-item { display: grid; grid-template-columns: 140px 1fr; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.cart-item h2 { font-size: var(--s1); margin-bottom: 0; }
.cart-item h2 a { color: var(--ink); text-decoration: none; }
.cart-rows { list-style: none; padding: 0; margin: 8px 0; }
.cart-rows li { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 4px 0; font-size: 0.95rem; flex-wrap: wrap; }
.cart-line { display: flex; justify-content: space-between; margin: 0; font-weight: 600; }
.cart-line strong { color: var(--brass); }
.checkout { background: var(--surface); border: 1.5px solid var(--ink); padding: 24px; position: sticky; top: 88px; }
.checkout h2 { font-size: var(--s1); margin-top: 20px; }
@media (max-width: 900px) {
  .cart { grid-template-columns: 1fr; }
  .checkout { position: static; }
}
@media (max-width: 480px) { .cart-item { grid-template-columns: 90px 1fr; gap: 12px; } }

/* ---------- التأكيد والتتبع ---------- */
.done { text-align: center; }
.done p { margin-inline: auto; }
.done .actions { justify-content: center; }
.order-no { font-size: var(--s1); }
.order-no strong { font-family: var(--font-display); font-size: var(--s3); display: block; direction: ltr; }
.note { background: var(--verde-tint); padding: 12px 16px; display: inline-block; }
.track { background: var(--surface); border: 1.5px solid var(--ink); padding: 24px; margin-top: 8px; }
.status { color: var(--verde); }
.status-rejected, .status-cancelled { color: var(--danger); }
.timeline { list-style: none; padding: 0; margin: 16px 0; border-inline-start: 2px solid var(--verde); }
.timeline li { display: flex; justify-content: space-between; gap: 12px; padding: 6px 16px; position: relative; flex-wrap: wrap; }
.timeline li::before { content: ""; position: absolute; inset-inline-start: -7px; top: 15px; width: 12px; height: 12px; background: var(--verde); border-radius: 50%; }
.timeline time { color: var(--muted); font-size: 0.9rem; }
.track-items { list-style: none; padding: 0; margin: 0 0 16px; }
.track-items li { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px solid var(--line); }

.projects { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 32px; }
.project img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; margin-bottom: 12px; }

/* ---------- التذييل وزر واتساب ---------- */
.site-footer { background: var(--ink); color: #E6E8E9; margin-top: 48px; }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; padding-block: 36px; flex-wrap: wrap; }
.site-footer .brand { color: #fff; }
.site-footer p { color: #C3C7CB; }
.site-footer nav { display: grid; gap: 6px; }
.site-footer a { color: #fff; }
.wa-float {
  position: fixed; bottom: 20px; inset-inline-end: 20px; z-index: 30;
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--verde); color: #fff; text-decoration: none; padding: 12px 18px; border-radius: 28px; font-weight: 600;
  box-shadow: 0 4px 14px rgba(28,31,34,0.25);
}
.wa-float:hover { background: var(--verde-dark); color: #fff; }
.wa-float svg { width: 20px; height: 20px; }
.wa-float[hidden] { display: none; }

@media (prefers-reduced-motion: reduce) {
  .hero-slab::after { animation: none; display: none; }
  html:focus-within { scroll-behavior: auto; }
}

/* على الجوال: زر واتساب أيقونة فقط، مع مساحة أسفل الصفحة حتى لا يغطي المحتوى */
@media (max-width: 640px) {
  .wa-float { padding: 14px; bottom: 16px; }
  .wa-float span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .site-footer { padding-bottom: 72px; }
}