/* =====================================================
   نظام التصميم — ألوان عصرية بمتغيرات CSS
   يُبدَّل الوضع بإضافة كلاس "dark" أو "light" على <html>
   ===================================================== */

:root,
html.dark {
    --bg: #0b0f17;
    --bg-soft: #0e1420;
    --panel: #141b26;
    --panel-2: #1c2534;
    --border: #243044;
    --border-soft: #1b2434;
    --text: #e9eef7;
    --text-dim: #8493ab;

    --accent: #6d8cff;              /* اللون الأساسي للنظام */
    --accent-soft: rgba(109,140,255,.14);
    --accent-strong: #5570f5;
    --amber: #f5a524;               /* المبالغ والأسعار */
    --amber-soft: rgba(245,165,36,.14);
    --green: #22c58a;
    --green-soft: rgba(34,197,138,.14);
    --danger: #f2556d;
    --danger-soft: rgba(242,85,109,.14);
    --blue: #6d8cff;

    --nav-bg: rgba(14,20,32,.92);
    --shadow: 0 10px 30px rgba(0,0,0,.45);
    --shadow-sm: 0 2px 10px rgba(0,0,0,.3);
    --r: 14px;
    --r-lg: 18px;
}

html.light {
    --bg: #f5f7fb;
    --bg-soft: #eef2f8;
    --panel: #ffffff;
    --panel-2: #f1f4f9;
    --border: #e1e7f0;
    --border-soft: #eaeff6;
    --text: #101827;
    --text-dim: #64748b;

    --accent: #4a63d8;
    --accent-soft: rgba(74,99,216,.10);
    --accent-strong: #3b51c4;
    --amber: #b8730a;
    --amber-soft: rgba(184,115,10,.12);
    --green: #0f9d70;
    --green-soft: rgba(15,157,112,.12);
    --danger: #dc3a55;
    --danger-soft: rgba(220,58,85,.10);
    --blue: #4a63d8;

    --nav-bg: rgba(255,255,255,.92);
    --shadow: 0 10px 30px rgba(16,24,39,.10);
    --shadow-sm: 0 2px 10px rgba(16,24,39,.06);
    --r: 14px;
    --r-lg: 18px;
}

/* الأيقونات ترث لون النص وتتوسّط مع النص */
.ico { flex-shrink: 0; vertical-align: -.18em; }

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    transition: background .2s, color .2s;
}

a { color: inherit; text-decoration: none; }

/* مساحة سفلية تكفي شريط التنقل الثابت */
.container { max-width: 480px; margin: 0 auto; padding-bottom: 92px; }

/* ---------- Top bar ---------- */
.topbar {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px; border-bottom: 1px solid var(--border-soft);
    background: var(--nav-bg); backdrop-filter: saturate(180%) blur(14px);
    position: sticky; top: 0; z-index: 10;
}
.topbar .brand { font-weight: 700; font-size: 15px; flex: 1; }
.topbar .brand small { display: block; font-weight: 400; font-size: 11px; color: var(--text-dim); }
.icon-btn, .back-btn {
    width: 36px; height: 36px; border-radius: 11px; background: var(--panel-2);
    border: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
    font-size: 15px; cursor: pointer; color: var(--text); position: relative; flex-shrink: 0;
    transition: background .15s, border-color .15s, color .15s;
}
.icon-btn:hover, .back-btn:hover { border-color: var(--accent); color: var(--accent); }
.bell-dot {
    position: absolute; top: -5px; left: -5px; background: var(--danger); color: #fff;
    font-size: 9px; font-weight: 800; width: 16px; height: 16px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.logo-badge {
    width: 34px; height: 34px; border-radius: 9px; overflow: hidden; flex-shrink: 0;
    background: linear-gradient(135deg, var(--amber), #c97b00);
    display: flex; align-items: center; justify-content: center; font-weight: 800; color: #1a1200;
}
.logo-badge img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- Search ---------- */
.search-box {
    margin: 12px 16px 4px; display: flex; align-items: center; gap: 8px;
    background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 10px 14px;
}
.search-box input {
    border: none; background: transparent; outline: none; color: var(--text); font-size: 13px; width: 100%;
}
.search-box input::placeholder { color: var(--text-dim); }
.search-submit {
    background: none; border: none; color: inherit; font-size: 14px;
    cursor: pointer; padding: 0; line-height: 1; flex-shrink: 0;
}
/* اسم المنتج الطويل لا يزحم أزرار الشريط العلوي */
.topbar .brand { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- Section titles ---------- */
.section-title {
    font-size: 11px; color: var(--text-dim); text-transform: uppercase;
    letter-spacing: .5px; padding: 16px 16px 8px;
}

/* ---------- Category grid (catalog home) ---------- */
.cat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 4px 16px 16px; }
.cat-card {
    background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
    padding: 16px 10px; text-align: center; position: relative;
}
.cat-card img { width: 44px; height: 44px; object-fit: contain; border-radius: 10px; margin-bottom: 8px; }
.cat-card .icon-fallback {
    width: 44px; height: 44px; border-radius: 10px; margin: 0 auto 8px;
    background: var(--panel-2); display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.cat-card .name { font-size: 13px; font-weight: 600; }

/* ---------- Product rows (list) ---------- */
.prod-row {
    display: flex; align-items: center; gap: 12px; padding: 10px 16px;
    border-bottom: 1px solid var(--border);
}
.prod-thumb {
    width: 52px; height: 52px; border-radius: 10px; background: var(--panel-2);
    border: 1px solid var(--border); flex-shrink: 0; overflow: hidden;
    display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.prod-thumb img { width: 100%; height: 100%; object-fit: contain; }
.prod-info { flex: 1; min-width: 0; }
.prod-code { font-size: 10px; color: var(--text-dim); font-family: monospace; }
.prod-name { font-size: 13px; font-weight: 600; margin: 2px 0; }
.prod-price { font-size: 12px; color: var(--amber); font-weight: 700; }
.prod-price .iqd { color: var(--text-dim); font-weight: 400; font-size: 10px; }
.chev { color: var(--text-dim); font-size: 14px; }

.stock-pill { font-size: 9px; font-weight: 800; padding: 3px 7px; border-radius: 6px; flex-shrink: 0; }
.stock-ok    { background: rgba(37,211,102,.15); color: var(--green); }
.stock-low   { background: rgba(240,165,0,.15); color: var(--amber); }
.stock-empty { background: rgba(225,75,75,.15); color: var(--danger); }

/* ---------- FAB ---------- */
.fab:active { transform: scale(.94); }
.fab {
    position: fixed; bottom: 88px; left: 20px; width: 52px; height: 52px; border-radius: 17px;
    background: linear-gradient(150deg, var(--accent), var(--accent-strong));
    color: #fff; font-size: 24px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow); z-index: 30; border: none; cursor: pointer;
    transition: transform .15s;
}

/* ---------- Product detail ---------- */
/* الصورة تُعرض كاملة بلا قطع، والحاوية تتمدّد مع نسبتها حتى حدّ أقصى */
.gallery { display: flex; gap: 2px; border-bottom: 1px solid var(--border); }
.gallery .main {
    flex: 1; min-height: 220px; background: linear-gradient(160deg, var(--panel-2), var(--bg));
    display: flex; align-items: center; justify-content: center; padding: 10px;
}
.gallery .main img {
    max-width: 100%; max-height: 70vh; width: auto; height: auto;
    object-fit: contain; border-radius: 8px;
}
.thumb-strip { display: flex; gap: 6px; padding: 10px 16px; overflow-x: auto; }
.thumb-strip .t {
    width: 48px; height: 48px; border-radius: 8px; background: var(--panel-2);
    border: 1px solid var(--border); overflow: hidden; flex-shrink: 0; cursor: pointer;
}
.thumb-strip .t img { width: 100%; height: 100%; object-fit: contain; }
.thumb-strip .t.active { border-color: var(--amber); }
.prod-detail { padding: 10px 16px 16px; }
.code-tag {
    display: inline-block; font-family: monospace; font-size: 11px; color: var(--text-dim);
    background: var(--panel-2); padding: 3px 8px; border-radius: 6px; margin-bottom: 6px;
}
.prod-detail h2 { margin: 6px 0 10px; font-size: 18px; }
.price-dual .usd { font-size: 22px; font-weight: 800; color: var(--amber); }
/* بطاقتا السعر والكمية جنباً إلى جنب بنفس البروز */
.pq-row { display: flex; gap: 10px; }
.pq-item {
    flex: 1; min-width: 0; background: var(--panel); border: 1px solid var(--border);
    border-radius: 12px; padding: 10px 12px;
}
.pq-label {
    font-size: 11px; color: var(--text-dim); margin-bottom: 4px;
    display: flex; align-items: center; gap: 6px;
}
.price-dual .qty { color: var(--green); }
.price-dual .qty.empty { color: var(--danger); }
.eye-btn {
    background: none; border: none; color: var(--text-dim);
    cursor: pointer; font-size: 13px; padding: 0; line-height: 1;
}
.price-dual .iqd { font-size: 12px; color: var(--text-dim); margin-top: 2px; }
.barcode-row { font-size: 11px; color: var(--text-dim); margin: 10px 0; }
.desc { font-size: 13px; line-height: 1.7; color: var(--text); margin: 14px 0; }
.spec-table { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; margin-bottom: 16px; }
.spec-row { display: flex; justify-content: space-between; padding: 9px 12px; font-size: 12px; border-bottom: 1px solid var(--border); }
.spec-row:last-child { border-bottom: none; }
.spec-row span:first-child { color: var(--text-dim); }

.btn-primary {
    background: var(--green); color: #06280f; font-weight: 800; font-size: 14px;
    text-align: center; padding: 13px; border-radius: 14px; display: flex; align-items: center;
    justify-content: center; gap: 8px; border: none; cursor: pointer; width: 100%;
}
.btn-primary {
    background: linear-gradient(180deg, var(--accent), var(--accent-strong));
    color: #fff; box-shadow: 0 6px 18px var(--accent-soft);
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-secondary {
    background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
    font-weight: 700; font-size: 13px; padding: 12px; border-radius: 14px; cursor: pointer;
}
.btn-danger { background: rgba(225,75,75,.12); color: var(--danger); border: 1px solid var(--danger); }

.cta-bar {
    position: sticky; bottom: 78px; background: var(--nav-bg); backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-soft);
    padding: 12px 16px; display: flex; gap: 8px; z-index: 15;
}

/* ---------- شجرة الأقسام ---------- */
.tree-branch { color: var(--text-dim); font-size: 14px; flex-shrink: 0; margin-left: -4px; }

/* ---------- شريط الحساب أسفل صفحات الكتالوج ---------- */
.account-bar {
    display: flex; align-items: center; justify-content: space-between;
    margin: 24px 16px 0; padding: 12px 14px; font-size: 12px;
    background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
    color: var(--text-dim);
}
.account-bar a { color: var(--danger); font-weight: 700; }

/* ---------- خانات صور المنتج الثلاث ---------- */
.img-slot {
    display: flex; align-items: center; gap: 8px; margin-bottom: 8px;
    border: 1px dashed var(--border); border-radius: 12px; padding: 8px;
}
.img-slot.filled { border-style: solid; }
.img-slot .slot-no {
    width: 20px; height: 20px; border-radius: 50%; background: var(--panel-2);
    border: 1px solid var(--border); color: var(--text-dim); font-size: 11px; font-weight: 700;
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.img-slot .slot-label { flex: 1; font-size: 12px; color: var(--text-dim); }

/* ---------- رفع الصور: حقل الملف + زر الكاميرا ---------- */
.upload-row { display: flex; gap: 8px; align-items: stretch; margin-bottom: 14px; }
.upload-row .field-input { flex: 1; margin-bottom: 0; }
.camera-btn {
    flex-shrink: 0; padding: 0 14px; border-radius: 10px; font-size: 18px;
    background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.camera-btn:active { border-color: var(--amber); }

/* ---------- Forms ---------- */
.field-label { font-size: 12px; color: var(--text-dim); margin-bottom: 6px; display: block; }
.field-input, select.field-input, textarea.field-input {
    width: 100%; background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
    padding: 11px 13px; font-size: 13px; color: var(--text); margin-bottom: 14px; font-family: inherit;
}
textarea.field-input { min-height: 90px; resize: vertical; }
.form-wrap { padding: 16px; max-width: 480px; margin: 0 auto; }

.toggle-row { display: flex; gap: 8px; margin-bottom: 14px; }
.toggle-btn {
    flex: 1; text-align: center; padding: 10px; border-radius: 10px; font-size: 12px;
    font-weight: 700; border: 1px solid var(--border); color: var(--text-dim); cursor: pointer; background: var(--panel);
}
.toggle-btn.active { background: rgba(47,111,237,.15); color: var(--blue); border-color: var(--blue); }
.toggle-btn.active.danger-active { background: rgba(225,75,75,.12); color: var(--danger); border-color: var(--danger); }

/* ---------- Tables (admin lists) ---------- */
.list-row {
    display: flex; align-items: center; gap: 10px; padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}
.list-row .name { font-size: 13px; font-weight: 700; flex: 1; }
.list-row .sub { font-size: 11px; color: var(--text-dim); }
.mini-btn {
    font-size: 11px; padding: 6px 10px; border-radius: 8px; background: var(--panel-2);
    border: 1px solid var(--border); color: var(--text); cursor: pointer;
}
.add-bar {
    margin: 12px 16px; padding: 12px; border: 1px dashed var(--border); border-radius: 12px;
    text-align: center; font-size: 12px; color: var(--text-dim); cursor: pointer;
}

/* ---------- Dashboard stats ---------- */
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 4px 16px 12px; }
.stat-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--r); padding: 14px; box-shadow: var(--shadow-sm); }
.stat-card .label { font-size: 10px; color: var(--text-dim); margin-bottom: 6px; }
.stat-card .value { font-size: 19px; font-weight: 800; }

.notif-panel { margin: 0 16px 10px; background: var(--panel); border: 1px solid var(--danger); border-radius: 12px; overflow: hidden; }
.notif-head { background: rgba(225,75,75,.12); padding: 9px 12px; font-size: 11px; font-weight: 700; color: var(--danger); }
.notif-item { display: flex; justify-content: space-between; padding: 9px 12px; font-size: 12px; border-top: 1px solid var(--border); }
.notif-item .tag { font-size: 9px; padding: 2px 6px; border-radius: 5px; font-weight: 700; }
.tag-empty { background: rgba(225,75,75,.15); color: var(--danger); }
.tag-low { background: rgba(240,165,0,.15); color: var(--amber); }

/* ---------- Nav menu (admin) ---------- */
.nav-menu { display: flex; flex-direction: column; gap: 8px; padding: 0 16px 16px; }
.nav-item {
    display: flex; align-items: center; gap: 12px; background: var(--panel); border: 1px solid var(--border);
    border-radius: var(--r); padding: 13px 14px; font-size: 13px; font-weight: 600;
    transition: border-color .15s, transform .1s;
}
.nav-item:hover { border-color: var(--accent); }
.nav-item:active { transform: scale(.99); }
.nav-item .ico { color: var(--accent); }

/* ---------- Login ---------- */
.login-wrap {
    max-width: 360px; margin: 60px auto; padding: 0 26px; text-align: center;
}
.login-logo {
    width: 74px; height: 74px; border-radius: 22px; margin: 0 auto 18px; overflow: hidden;
    background: linear-gradient(140deg, var(--accent), var(--accent-strong));
    box-shadow: var(--shadow);
    display: flex; align-items: center; justify-content: center; font-size: 32px;
}
.login-title { font-size: 19px; font-weight: 800; margin-bottom: 4px; }
.login-sub { font-size: 12px; color: var(--text-dim); margin-bottom: 26px; }
.error-msg {
    background: rgba(225,75,75,.12); color: var(--danger); border: 1px solid var(--danger);
    padding: 10px 14px; border-radius: 10px; font-size: 12px; margin-bottom: 16px;
}
.success-msg {
    background: rgba(37,211,102,.12); color: var(--green); border: 1px solid var(--green);
    padding: 10px 14px; border-radius: 10px; font-size: 12px; margin-bottom: 16px;
}

/* ---------- Invoice items ---------- */
.invoice-item-row {
    display: flex; align-items: center; gap: 8px; background: var(--panel); border: 1px solid var(--border);
    border-radius: 10px; padding: 10px; margin: 0 16px 8px;
}
.invoice-item-row .name { font-size: 12px; font-weight: 600; }
.invoice-item-row .price { font-size: 11px; color: var(--text-dim); }
.lock-icon { font-size: 10px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 5px; padding: 1px 5px; color: var(--text-dim); margin-right: 6px; }
.qty-input {
    width: 44px; text-align: center; font-size: 13px; background: var(--panel-2); border-radius: 6px;
    padding: 6px 2px; border: 1px solid var(--border); margin-right: auto; color: var(--text);
}
.total-bar { padding: 12px 16px 0; }
.total-line { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-dim); margin-bottom: 4px; }
.total-line.grand {
    font-size: 16px; font-weight: 800; color: var(--text); border-top: 1px dashed var(--border);
    padding-top: 8px; margin-top: 4px;
}
.total-line.grand .iqd-sub { display: block; font-size: 10px; font-weight: 400; color: var(--text-dim); }

/* ---------- Theme toggle switch ---------- */
.theme-toggle {
    width: 46px; height: 26px; border-radius: 13px; background: var(--panel-2);
    border: 1px solid var(--border); position: relative; flex-shrink: 0; cursor: pointer;
    display: flex; align-items: center; padding: 2px; margin-right: auto;
}
.theme-toggle .knob {
    width: 20px; height: 20px; border-radius: 50%; background: var(--amber);
    display: flex; align-items: center; justify-content: center; font-size: 11px;
    transition: margin .15s;
}
html.light .theme-toggle .knob { margin-right: auto; }
html.dark .theme-toggle .knob { margin-left: auto; }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.text-dim { color: var(--text-dim); }
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-dim); font-size: 13px; }


/* =====================================================
   شريط التنقل السفلي بالأيقونات
   ===================================================== */
.bottom-nav {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
    max-width: 480px; margin: 0 auto; display: flex; gap: 2px;
    background: var(--nav-bg); backdrop-filter: saturate(180%) blur(16px);
    border-top: 1px solid var(--border-soft);
    padding: 6px 6px calc(6px + env(safe-area-inset-bottom, 0px));
}
.bottom-nav a {
    flex: 1; min-width: 0; display: flex; flex-direction: column; align-items: center; gap: 3px;
    padding: 7px 2px; border-radius: 12px; color: var(--text-dim);
    font-size: 10px; font-weight: 600; transition: color .15s, background .15s;
}
.bottom-nav a span {
    max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.bottom-nav a:hover { color: var(--text); }
.bottom-nav a.active { color: var(--accent); background: var(--accent-soft); }
.bottom-nav a.danger { color: var(--danger); }

/* شارة التنبيه فوق أيقونة التنقل */
.nav-badge {
    position: absolute; transform: translate(-14px, -4px);
    background: var(--danger); color: #fff; font-size: 9px; font-weight: 700;
    min-width: 15px; height: 15px; padding: 0 4px; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
}
