/* ==========================================================================
   مجان موتورز (قطع الغيار) — نظام تصميم عربي RTL مستوحى من Material Design 3.

   كل شيء يُقرأ من خصائص CSS مخصّصة (tokens) بدل قيم ثابتة، وكل التخطيط يستخدم
   خصائص منطقية (margin-inline, text-align: start, ...) بدل left/right — حتى
   يبقى الاتجاه صحيحاً دائماً في صفحة كاملة RTL. التباين قِيس مقابل WCAG AA
   (4.5:1 للنص، 3:1 للعناصر الكبيرة/الحدود).
   ========================================================================== */

:root {
  --bg-page:    #F3F5F9;
  --bg-card:    #FFFFFF;
  --bg-sunken:  #EAEDF3;
  --bg-raised:  #FFFFFF;
  --border:        #DCE1EA;
  --border-strong: #B9C1D1;

  --ink:        #16181D;  /* 15.6:1 on card */
  --ink-2:      #454A54;  /* 8.9:1 */
  --ink-muted:  #676D7A;  /* 5.4:1 */
  --on-brand:   #FFFFFF;
  --on-status:  #FFFFFF;

  --brand:      #2F5FD6;  /* 5.1:1 on white */
  --brand-text: #24509F;  /* 7.0:1 — link text */
  --brand-dim:  #E7EDFC;
  --brand-strong: #1E3F86;

  --good:     #157A4B;   /* 5.3:1 */
  --warning:  #8A5A00;   /* 5.6:1 */
  --critical: #B3261E;   /* 5.9:1 */
  --good-dim:     #E4F5EC;
  --warning-dim:  #FBF0DC;
  --critical-dim: #FBE7E5;

  --nav-bg: rgba(255, 255, 255, .92);
  --overlay: rgba(15, 18, 26, .55);
  --placeholder: #9CA3B2;

  --shadow-1: 0 1px 2px rgba(20, 24, 33, .06);
  --shadow-2: 0 6px 18px rgba(20, 24, 33, .10);
  --shadow-lift: 0 12px 28px rgba(20, 24, 33, .16);

  --r-sm: 8px; --r-md: 12px; --r-lg: 18px; --r-pill: 999px;
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px; --sp-5: 24px; --sp-6: 32px;

  --font: "Tajawal", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-num: "Tajawal", system-ui, sans-serif;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page:    #14161C;
    --bg-card:    #1D2028;
    --bg-sunken:  #191B22;
    --bg-raised:  #232631;
    --border:        #2C3040;
    --border-strong: #3C4155;

    --ink:        #F1F3F9;
    --ink-2:      #C2C7D6;
    --ink-muted:  #8D93A6;

    --brand:      #7EA1FF;
    --brand-text: #A9C0FF;
    --brand-dim:  #202B47;
    --brand-strong: #B7CBFF;
    --on-brand:   #0B1330;

    --good:     #4ED397;
    --warning:  #F0BB57;
    --critical: #FF8A80;
    --good-dim:     #12301F;
    --warning-dim:  #3A2C0C;
    --critical-dim: #3A1614;
    --on-status: #101317;

    --nav-bg: rgba(20, 22, 28, .90);
    --overlay: rgba(6, 7, 11, .70);
    --placeholder: #5C6478;

    --shadow-1: 0 1px 2px rgba(0, 0, 0, .35);
    --shadow-2: 0 6px 18px rgba(0, 0, 0, .40);
    --shadow-lift: 0 12px 28px rgba(0, 0, 0, .50);

    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { direction: rtl; }
body {
  margin: 0;
  background: var(--bg-page);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
a { color: var(--brand-text); }
h1, h2, h3 { line-height: 1.3; margin: 0 0 var(--sp-3); }
h1 { font-size: 1.6rem; font-weight: 800; }
h2 { font-size: 1.25rem; font-weight: 700; }
h3 { font-size: 1.05rem; font-weight: 700; }
.muted { color: var(--ink-muted); }
.small { font-size: .85rem; }
.num { font-variant-numeric: tabular-nums; }

/* ---- layout ---------------------------------------------------------- */
.app-shell { min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--nav-bg); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar .brand { display: flex; align-items: center; gap: var(--sp-2); font-weight: 800; font-size: 1.05rem; margin-inline-end: auto; }
.topbar .brand-logo { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; }
.topbar nav { display: flex; gap: var(--sp-1); flex-wrap: wrap; }
.topbar nav a {
  padding: var(--sp-2) var(--sp-3); border-radius: var(--r-pill);
  color: var(--ink-2); text-decoration: none; font-size: .92rem; font-weight: 600;
}
.topbar nav a.active { background: var(--brand-dim); color: var(--brand-text); }
.topbar .user-chip {
  display: flex; align-items: center; gap: var(--sp-2);
  padding-inline-start: var(--sp-3); border-inline-start: 1px solid var(--border);
}
main.page { flex: 1; max-width: 1080px; width: 100%; margin: 0 auto; padding: var(--sp-5) var(--sp-4) var(--sp-6); }

/* mobile bottom nav for small screens */
.bottom-nav { display: none; }
@media (max-width: 720px) {
  .topbar nav { display: none; }
  .bottom-nav {
    display: flex; position: sticky; bottom: 0; z-index: 20;
    background: var(--nav-bg); backdrop-filter: blur(10px);
    border-top: 1px solid var(--border);
    padding: var(--sp-1) var(--sp-2);
  }
  .bottom-nav a {
    flex: 1; text-align: center; padding: var(--sp-2); border-radius: var(--r-md);
    color: var(--ink-muted); text-decoration: none; font-size: .78rem; font-weight: 700;
  }
  .bottom-nav a.active { color: var(--brand-text); background: var(--brand-dim); }
  main.page { padding-bottom: var(--sp-6); }
}

/* ---- cards / stat tiles ------------------------------------------------ */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r-lg); box-shadow: var(--shadow-1);
  padding: var(--sp-4);
}
.grid { display: grid; gap: var(--sp-4); }
.grid-stats { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.grid-cars { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

.stat-tile { display: flex; flex-direction: column; gap: var(--sp-1); }
.stat-tile .label { color: var(--ink-muted); font-size: .85rem; font-weight: 600; }
.stat-tile .value { font-size: 1.6rem; font-weight: 800; font-family: var(--font-num); }

/* ---- buttons ----------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
  padding: 10px 18px; border-radius: var(--r-pill); border: 1px solid transparent;
  font-weight: 700; font-size: .95rem; cursor: pointer; text-decoration: none;
  transition: filter .12s ease, transform .05s ease;
}
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--brand); color: var(--on-brand); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-secondary { background: var(--bg-sunken); color: var(--ink); border-color: var(--border); }
.btn-danger { background: var(--critical-dim); color: var(--critical); }
.btn-ghost { background: transparent; color: var(--brand-text); }
.btn-sm { padding: 6px 12px; font-size: .85rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

/* ---- forms --------------------------------------------------------------*/
.field { margin-bottom: var(--sp-4); }
.field label { display: block; margin-bottom: var(--sp-1); font-weight: 700; font-size: .9rem; }
.input, .select, textarea.input {
  width: 100%; padding: 11px 14px; border-radius: var(--r-md);
  border: 1px solid var(--border-strong); background: var(--bg-card); color: var(--ink);
  font-family: inherit; font-size: 1rem;
}
.input:focus, .select:focus, textarea.input:focus {
  outline: 2px solid var(--brand); outline-offset: 1px; border-color: var(--brand);
}
.input::placeholder { color: var(--placeholder); }
.field-error { color: var(--critical); font-size: .85rem; margin-top: var(--sp-1); }
.field-hint { color: var(--ink-muted); font-size: .82rem; margin-top: var(--sp-1); }
.check-row { display: flex; align-items: center; gap: var(--sp-2); font-size: .92rem; }
.input-row { display: flex; gap: var(--sp-3); flex-wrap: wrap; }
.input-row > .field { flex: 1; min-width: 160px; }
.stack-4 > * + * { margin-top: var(--sp-4); }

/* ---- flash / badges ------------------------------------------------------*/
.flash { display: flex; gap: var(--sp-2); padding: var(--sp-3) var(--sp-4); border-radius: var(--r-md); margin-bottom: var(--sp-3); font-size: .92rem; }
.flash-success { background: var(--good-dim); color: var(--good); }
.flash-error   { background: var(--critical-dim); color: var(--critical); }
.flash-info    { background: var(--brand-dim); color: var(--brand-text); }

.badge { display: inline-flex; padding: 3px 12px; border-radius: var(--r-pill); font-size: .78rem; font-weight: 700; }
.badge-purchased   { background: var(--bg-sunken); color: var(--ink-2); }
.badge-shipping    { background: var(--brand-dim); color: var(--brand-text); }
.badge-arrived     { background: var(--warning-dim); color: var(--warning); }
.badge-maintenance { background: var(--critical-dim); color: var(--critical); }
.badge-listed      { background: var(--good-dim); color: var(--good); }
.badge-sold        { background: var(--ink); color: var(--bg-card); }

/* ---- table ---------------------------------------------------------------*/
.table-wrap { overflow-x: auto; border-radius: var(--r-md); border: 1px solid var(--border); }
table.data { width: 100%; border-collapse: collapse; min-width: 480px; }
table.data th, table.data td { padding: var(--sp-3); text-align: start; border-bottom: 1px solid var(--border); font-size: .92rem; }
table.data th { background: var(--bg-sunken); color: var(--ink-muted); font-weight: 700; font-size: .8rem; }
table.data tr:last-child td { border-bottom: none; }

/* ---- car card ------------------------------------------------------------*/
.car-card { display: block; text-decoration: none; color: inherit; overflow: hidden; }
.car-card .thumb {
  aspect-ratio: 4 / 3; background: var(--bg-sunken); border-radius: var(--r-md);
  overflow: hidden; margin-bottom: var(--sp-3); display: flex; align-items: center; justify-content: center;
}
.car-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.car-card .thumb .placeholder { color: var(--placeholder); font-size: 2rem; }
.car-card h3 { margin-bottom: 2px; }
.car-card .vin { color: var(--ink-muted); font-size: .82rem; direction: ltr; text-align: end; }

.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: var(--sp-2); }
.photo-grid figure { margin: 0; position: relative; border-radius: var(--r-md); overflow: hidden; aspect-ratio: 1; background: var(--bg-sunken); }
.photo-grid img { width: 100%; height: 100%; object-fit: cover; }
.photo-grid .cover-mark {
  position: absolute; inset-inline-start: 6px; top: 6px;
  background: var(--brand); color: var(--on-brand); font-size: .68rem; font-weight: 800;
  padding: 2px 8px; border-radius: var(--r-pill);
}
.photo-grid .photo-actions {
  position: absolute; inset-inline: 0; bottom: 0; display: flex; gap: 4px; padding: 4px;
  background: linear-gradient(to top, rgba(0,0,0,.55), transparent);
}
.photo-grid .photo-actions button {
  flex: 1; font-size: .68rem; padding: 3px; border-radius: 6px; border: none; cursor: pointer;
  background: rgba(255,255,255,.9); color: #16181D; font-weight: 700;
}

/* ---- auth pages -----------------------------------------------------------*/
.page-auth { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: var(--sp-4); }
.auth-card { width: min(420px, 100%); background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg); box-shadow: var(--shadow-lift); padding: var(--sp-6) var(--sp-5); }
.auth-logo { display: block; width: 84px; height: 84px; border-radius: 50%; margin: 0 auto var(--sp-4); box-shadow: var(--shadow-2); }
.auth-sub { color: var(--ink-muted); margin: 0 0 var(--sp-5); }
.auth-foot { text-align: center; color: var(--ink-muted); font-size: .85rem; margin-top: var(--sp-4); }

/* ---- error page ------------------------------------------------------------*/
.page-error { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.error-shell { text-align: center; padding: var(--sp-6); }
.error-code { font-size: 3rem; font-weight: 800; color: var(--brand); margin: 0; }

/* ---- misc ------------------------------------------------------------------*/
.section-head { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); margin-bottom: var(--sp-4); flex-wrap: wrap; }
.empty-state { text-align: center; padding: var(--sp-6); color: var(--ink-muted); }
hr.rule { border: none; border-top: 1px solid var(--border); margin: var(--sp-4) 0; }

/* ---- print / export (settlement details) -----------------------------------*/
.print-header { margin-bottom: var(--sp-4); }
@media print {
  .topbar, .bottom-nav, .no-print { display: none !important; }
  main.page { max-width: none; padding: 0; }
  body { background: #fff; color: #000; }
  .card { box-shadow: none; border-color: #ccc; }
  .print-header { display: block !important; }
  a[href]::after { content: none !important; }
}

/* ==========================================================================
   قطع الغيار — catalog, parts table, quote, PDF
   ========================================================================== */
.topbar .brand { color: var(--ink); text-decoration: none; }
.brand-sub { color: var(--ink-muted); font-weight: 600; font-size: .85rem; }
.actions { display: flex; gap: var(--sp-2); align-items: center; flex-wrap: wrap; }
.crumbs { font-size: .88rem; color: var(--ink-muted); margin-bottom: var(--sp-3); }
.crumbs a { text-decoration: none; }
[hidden] { display: none !important; }

.search-hero { display: flex; gap: var(--sp-2); margin-bottom: var(--sp-5); }
.search-hero .input { flex: 1; min-width: 0; }
.input-lg { font-size: 1.05rem; padding: 14px 18px; border-radius: var(--r-pill); }
.filter-input { margin-bottom: var(--sp-3); }

.grid-tiles { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); margin-bottom: var(--sp-4); }
.tile { display: flex; flex-direction: column; gap: 2px; text-decoration: none; color: inherit; transition: box-shadow .12s ease, border-color .12s ease; }
.tile:hover { box-shadow: var(--shadow-2); border-color: var(--brand); }
.tile-title { font-weight: 800; font-size: 1.15rem; color: var(--ink); }

.inline-add { display: flex; gap: var(--sp-2); align-items: center; flex-wrap: wrap; margin-bottom: var(--sp-4); }
.inline-add .input { flex: 1; min-width: 160px; }
.inline-add-label { font-weight: 700; white-space: nowrap; }
.manage { margin-top: var(--sp-4); }
.manage summary { cursor: pointer; font-weight: 700; color: var(--ink-2); }
.manage[open] summary { margin-bottom: var(--sp-3); }
.manage form + form { margin-top: var(--sp-3); }
.form-actions { display: flex; gap: var(--sp-2); flex-wrap: wrap; }
.card + .card, .table-wrap + .card { margin-top: var(--sp-4); }

.omr-preview { padding: 11px 14px; border-radius: var(--r-md); background: var(--brand-dim); color: var(--brand-text); font-weight: 800; }
.edit-photo { display: flex; align-items: center; gap: var(--sp-3); margin-bottom: var(--sp-2); }
.edit-photo img { width: 96px; height: 96px; object-fit: cover; border-radius: var(--r-md); }

.parts-table .col-photo { width: 64px; }
.parts-table .col-price, .quote-table .col-price { text-align: end; white-space: nowrap; }
.parts-table .col-qty, .quote-table .col-qty { width: 140px; }
.parts-table .col-actions { width: 80px; }
.part-name { font-weight: 700; }
.part-thumb { width: 48px; height: 48px; border-radius: var(--r-sm); object-fit: cover; display: flex; align-items: center; justify-content: center; background: var(--bg-sunken); color: var(--placeholder); }
tr.in-quote td { background: var(--brand-dim); }

.qty { display: inline-flex; align-items: center; border: 1px solid var(--border-strong); border-radius: var(--r-pill); overflow: hidden; background: var(--bg-card); }
.qty-btn { width: 34px; height: 34px; border: none; background: var(--bg-sunken); color: var(--ink); font-size: 1.1rem; font-weight: 800; cursor: pointer; }
.qty-btn:hover { background: var(--brand-dim); color: var(--brand-text); }
.qty-input { width: 52px; height: 34px; border: none; text-align: center; font: inherit; font-weight: 700; background: transparent; color: var(--ink); -moz-appearance: textfield; }
.quote-table .qty-input { border: 1px solid var(--border-strong); border-radius: var(--r-sm); }
.qty-input::-webkit-outer-spin-button, .qty-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.cart-count { display: inline-flex; min-width: 20px; height: 20px; padding: 0 6px; align-items: center; justify-content: center; border-radius: var(--r-pill); background: var(--critical); color: #fff; font-size: .72rem; font-weight: 800; }

.quote-bar {
  position: sticky; bottom: var(--sp-3); z-index: 15; margin-top: var(--sp-4);
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4); border-radius: var(--r-lg);
  background: var(--bg-raised); border: 1px solid var(--brand); box-shadow: var(--shadow-lift);
}
.quote-bar-total { font-size: 1.3rem; font-weight: 800; }
@media (max-width: 720px) { .quote-bar { bottom: 64px; } }

.quote-table tfoot td { background: var(--bg-sunken); font-size: 1.05rem; }
.quote-actions { display: flex; gap: var(--sp-2); align-items: center; flex-wrap: wrap; margin-top: var(--sp-4); }
.btn-whatsapp { background: #1A8F4C; color: #fff; }
.btn-whatsapp:hover { filter: brightness(1.08); }

.input-sm { padding: 6px 10px; font-size: .88rem; width: auto; min-width: 0; flex: 1; }
.reset-form { display: flex; gap: var(--sp-2); align-items: center; min-width: 260px; }
.badge { background: var(--brand-dim); color: var(--brand-text); }

/* PDF source — kept off-screen, always light, fixed A4-ish width */
.pdf-stage { position: fixed; top: 0; left: -10000px; pointer-events: none; }
.pdf-doc { width: 794px; padding: 40px; background: #fff; color: #16181D; font-family: var(--font); direction: rtl; }
.pdf-head { display: flex; align-items: center; gap: 16px; border-bottom: 3px solid #2F5FD6; padding-bottom: 16px; margin-bottom: 20px; }
.pdf-head img { width: 64px; height: 64px; border-radius: 50%; }
.pdf-title { font-size: 26px; font-weight: 800; }
.pdf-sub { color: #454A54; font-size: 15px; }
.pdf-meta { margin-inline-start: auto; font-size: 14px; color: #454A54; text-align: end; }
.pdf-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.pdf-table th { background: #E7EDFC; color: #1E3F86; padding: 10px 8px; text-align: start; }
.pdf-table td { padding: 9px 8px; border-bottom: 1px solid #DCE1EA; vertical-align: top; }
.pdf-table td.num { white-space: nowrap; }
.pdf-total { margin-top: 18px; padding: 14px 16px; background: #16181D; color: #fff; border-radius: 10px; font-size: 20px; font-weight: 800; text-align: start; }
.pdf-note { margin-top: 12px; font-size: 14px; color: #454A54; }
.pdf-foot { margin-top: 24px; font-size: 12px; color: #676D7A; }

@media (max-width: 720px) {
  .parts-table .col-photo { display: none; }
  .search-hero .btn { padding-inline: 14px; }
  table.data { min-width: 560px; }
}