:root {
  --bg: #0f0b12;
  --surface: #1a1420;
  --surface-2: #241c2c;
  --border: #362a42;
  --text: #f3eef7;
  --muted: #a898b5;
  --brand: #a72286;
  --brand-soft: rgba(167, 34, 134, 0.16);
  --ok: #3ecf8e;
  --warn: #f5b83d;
  --err: #f26d6d;
  --radius: 14px;
  font-size: 15px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'IBM Plex Sans Arabic', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ===== شاشة الدخول ===== */
#login-screen {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at top, #241228 0%, var(--bg) 60%);
}
#login-screen.hidden { display: none; }
.login-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 2.2rem; width: min(92vw, 380px);
  text-align: center;
}
.login-card h1 { font-size: 1.3rem; margin-bottom: .4rem; }
.login-card p { color: var(--muted); font-size: .85rem; margin-bottom: 1.4rem; }
.login-card input {
  width: 100%; padding: .75rem 1rem; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
  font-family: inherit; font-size: 1rem; text-align: center; margin-bottom: .9rem;
}
.login-card input:focus { outline: 2px solid var(--brand); border-color: transparent; }
.login-error { color: var(--err); font-size: .82rem; min-height: 1.2rem; margin-bottom: .4rem; }

/* ===== الهيكل العام ===== */
header {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  padding: .9rem 1.4rem; border-bottom: 1px solid var(--border);
  background: var(--surface); position: sticky; top: 0; z-index: 50;
}
.logo { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.05rem; }
.logo .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 10px var(--brand); }

nav.tabs { display: flex; gap: .25rem; flex-wrap: wrap; margin-inline-start: auto; }
nav.tabs button {
  font-family: inherit; font-size: .88rem; color: var(--muted);
  background: none; border: none; padding: .5rem .85rem; border-radius: 9px; cursor: pointer;
}
nav.tabs button.active { background: var(--brand-soft); color: var(--text); font-weight: 600; }
nav.tabs button:hover { color: var(--text); }

.quick-links { display: flex; gap: .4rem; flex-wrap: wrap; padding: .7rem 1.4rem 0; }
.quick-links a {
  display: inline-flex; align-items: center; gap: .35rem;
  font-size: .8rem; color: var(--muted); text-decoration: none;
  border: 1px solid var(--border); border-radius: 999px; padding: .32rem .8rem;
  background: var(--surface);
}
.quick-links a:hover { color: var(--text); border-color: var(--brand); }

main { padding: 1.1rem 1.4rem 3rem; max-width: 1280px; margin: 0 auto; }
section.tab-panel { display: none; }
section.tab-panel.active { display: block; }

.panel-head { display: flex; align-items: center; gap: .8rem; margin: .6rem 0 1rem; }
.panel-head h2 { font-size: 1.15rem; }
.panel-head .refresh {
  margin-inline-start: auto; font-family: inherit; font-size: .8rem;
  background: var(--surface-2); color: var(--muted); border: 1px solid var(--border);
  border-radius: 8px; padding: .4rem .8rem; cursor: pointer;
}
.panel-head .refresh:hover { color: var(--text); border-color: var(--brand); }
.cache-note { font-size: .72rem; color: var(--muted); }

/* ===== البطاقات ===== */
.kpi-grid {
  display: grid; gap: .8rem;
  grid-template-columns: repeat(auto-fill, minmax(165px, 1fr));
  margin-bottom: 1.1rem;
}
.kpi {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.1rem;
}
.kpi .label { font-size: .78rem; color: var(--muted); margin-bottom: .45rem; }
.kpi .value { font-size: 1.55rem; font-weight: 700; line-height: 1.1; }
.kpi .sub { font-size: .74rem; color: var(--muted); margin-top: .35rem; }
.kpi.accent .value { color: var(--brand); filter: brightness(1.6); }
.kpi .value.ok { color: var(--ok); }
.kpi .value.warn { color: var(--warn); }
.kpi .value.err { color: var(--err); }

.cards-row { display: grid; gap: .9rem; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.1rem; margin-bottom: .9rem;
}
.card h3 { font-size: .95rem; margin-bottom: .8rem; color: var(--text); }
.card h3 .badge { font-size: .68rem; font-weight: 400; color: var(--muted); margin-inline-start: .4rem; }

/* ===== الجداول والقوائم ===== */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .83rem; }
th { text-align: right; color: var(--muted); font-weight: 500; font-size: .75rem; padding: .45rem .6rem; border-bottom: 1px solid var(--border); }
td { padding: .55rem .6rem; border-bottom: 1px solid rgba(54, 42, 66, .45); white-space: nowrap; }
tr:last-child td { border-bottom: none; }

.status-pill {
  display: inline-block; font-size: .7rem; padding: .15rem .55rem; border-radius: 999px;
  background: var(--surface-2); color: var(--muted);
}
.status-pill.ok { background: rgba(62, 207, 142, .14); color: var(--ok); }
.status-pill.warn { background: rgba(245, 184, 61, .14); color: var(--warn); }
.status-pill.err { background: rgba(242, 109, 109, .14); color: var(--err); }

/* ===== حالات التكامل ===== */
.placeholder {
  border: 1px dashed var(--border); border-radius: var(--radius);
  padding: 1.6rem; text-align: center; color: var(--muted); font-size: .85rem;
  margin-bottom: .9rem;
}
.placeholder code {
  display: inline-block; direction: ltr; background: var(--bg); border-radius: 6px;
  padding: .2rem .5rem; font-size: .78rem; margin-top: .5rem; color: var(--warn);
}
.error-box {
  border: 1px solid rgba(242, 109, 109, .4); background: rgba(242, 109, 109, .08);
  border-radius: var(--radius); padding: 1rem 1.2rem; color: var(--err);
  font-size: .84rem; margin-bottom: .9rem; word-break: break-word;
}
.loading { color: var(--muted); font-size: .85rem; padding: 1.2rem; text-align: center; }
@keyframes pulse { 50% { opacity: .45; } }
.loading { animation: pulse 1.4s ease-in-out infinite; }

/* ===== حالة الأنظمة (نظرة عامة) ===== */
.sys-status { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.sys-chip {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .76rem; border-radius: 999px; padding: .3rem .75rem;
  background: var(--surface); border: 1px solid var(--border); color: var(--muted);
}
.sys-chip .ind { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.sys-chip.ok .ind { background: var(--ok); }
.sys-chip.err .ind { background: var(--err); }
.sys-chip.unconfigured .ind { background: var(--warn); }

/* ===== بحث المخزون ===== */
.search-box { display: flex; gap: .5rem; margin-bottom: 1rem; }
.search-box input {
  flex: 1; padding: .65rem 1rem; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-family: inherit; font-size: .9rem;
}
.search-box input:focus { outline: 2px solid var(--brand); border-color: transparent; }

canvas { max-width: 100%; }
.chart-box { position: relative; height: 240px; }

.btn-brand {
  font-family: inherit; font-size: .95rem; font-weight: 600; width: 100%;
  background: var(--brand); color: #fff; border: none; border-radius: 10px;
  padding: .75rem; cursor: pointer;
}
.btn-brand:hover { filter: brightness(1.15); }

footer { text-align: center; color: var(--muted); font-size: .72rem; padding: 1rem; }

@media (max-width: 640px) {
  header { padding: .7rem .9rem; }
  main { padding: .9rem .9rem 2.5rem; }
  nav.tabs { margin-inline-start: 0; width: 100%; overflow-x: auto; flex-wrap: nowrap; }
  .kpi .value { font-size: 1.25rem; }
}