:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --text: #18212f;
  --muted: #697586;
  --border: #e3e8ef;
  --accent: #397fba;
  --accent-soft: #eaf3fb;
  --shadow: 0 8px 28px rgba(24, 33, 47, .055);
  --fa-font: "B Nazanin", Tahoma, Arial, sans-serif;
  --en-font: "Times New Roman", Times, serif;
}
* { box-sizing: border-box; }
html { direction: rtl; background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--fa-font); text-align: right; }
button, select { font: inherit; }
.app-shell { width: min(100%, 1500px); margin: 0 auto; padding: 18px clamp(12px, 2vw, 28px) 44px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 16px; }
h1 { font-size: clamp(1.5rem, 2.5vw, 2.15rem); margin: 0 0 5px; line-height: 1.5; }
h2 { font-size: clamp(1.18rem, 1.8vw, 1.45rem); margin: 0; }
p { margin: 0; color: var(--muted); font-size: .98rem; }
.filter-toggle { display: none; border: 1px solid var(--border); background: var(--panel); border-radius: 10px; padding: 9px 15px; cursor: pointer; }
.filters-panel { display: grid; grid-template-columns: repeat(3, minmax(150px, 1fr)) auto auto; gap: 12px; align-items: end; background: var(--panel); border: 1px solid var(--border); border-radius: 15px; padding: 14px; margin-bottom: 18px; box-shadow: var(--shadow); }
.filter-group { min-width: 0; }
.filter-group label { display: block; font-weight: 700; margin-bottom: 5px; }
.filter-group select { width: 100%; min-height: 78px; border: 1px solid var(--border); border-radius: 9px; padding: 6px; background: #fff; }
#brandFilter { direction: ltr; text-align: left; font-family: var(--en-font); }
.metric-switch { display: flex; gap: 4px; background: #eef2f6; border-radius: 10px; padding: 4px; align-self: center; }
.metric-switch button { border: 0; background: transparent; padding: 9px 12px; border-radius: 8px; cursor: pointer; white-space: nowrap; }
.metric-switch button.active { background: var(--panel); color: var(--accent); box-shadow: 0 2px 8px rgba(0,0,0,.06); font-weight: 700; }
.reset-btn { border: 1px solid var(--border); background: var(--panel); border-radius: 9px; padding: 9px 13px; cursor: pointer; align-self: center; }
.kpi-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi-card { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 16px 17px; box-shadow: var(--shadow); min-width: 0; }
.kpi-card span { display: block; color: var(--muted); margin-bottom: 7px; }
.kpi-card strong { display: block; font-size: clamp(1.28rem, 2vw, 1.8rem); line-height: 1.45; overflow-wrap: anywhere; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 15px; box-shadow: var(--shadow); padding: 16px; margin-bottom: 16px; min-width: 0; overflow: hidden; }
.section-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.unit-badge { background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 5px 10px; white-space: nowrap; font-size: .88rem; }
.chart { width: 100%; min-width: 0; }
.map-chart { height: 560px; }
.rank-chart { height: 520px; }
.month-chart { height: 410px; }
.brand-chart { height: 460px; }
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--border); margin-bottom: 10px; overflow-x: auto; }
.tab { border: 0; background: transparent; padding: 9px 17px; cursor: pointer; color: var(--muted); white-space: nowrap; }
.tab.active { color: var(--accent); font-weight: 700; border-bottom: 2px solid var(--accent); }
.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: right; white-space: nowrap; }
th { background: #f8fafc; font-weight: 700; position: sticky; top: 0; }
td.en { direction: ltr; text-align: left; font-family: var(--en-font); }
.loading { position: fixed; inset-inline-start: 18px; bottom: 18px; background: var(--text); color: #fff; padding: 9px 14px; border-radius: 10px; box-shadow: var(--shadow); z-index: 20; }
.error-box { position: fixed; inset: auto 14px 14px 14px; background: #fff1f0; color: #a61d24; border: 1px solid #ffccc7; padding: 12px; border-radius: 10px; z-index: 30; }
@media (max-width: 900px) {
  .app-shell { padding: 10px 9px 28px; }
  .topbar { align-items: flex-start; }
  .filter-toggle { display: block; flex: 0 0 auto; }
  .filters-panel { display: none; grid-template-columns: 1fr; padding: 12px; }
  .filters-panel.open { display: grid; }
  .filter-group select { min-height: 62px; }
  .metric-switch { width: 100%; }
  .metric-switch button { flex: 1; }
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .kpi-card { padding: 12px; }
  .panel { padding: 11px; border-radius: 12px; margin-bottom: 10px; }
  .section-head { align-items: center; }
  .map-chart { height: 430px; }
  .rank-chart { height: 460px; }
  .month-chart { height: 340px; }
  .brand-chart { height: 430px; }
}
@media (max-width: 480px) {
  h1 { font-size: 1.35rem; }
  .topbar p { font-size: .84rem; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .kpi-card strong { font-size: 1.17rem; }
  .section-head { flex-wrap: wrap; }
  .map-chart { height: 390px; }
  .rank-chart { height: 440px; }
  .month-chart { height: 310px; }
  .brand-chart { height: 420px; }
}

/* ============================================================
   Login / session UI
   ============================================================ */
.topbar-actions { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.user-chip { background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 7px 11px; font-size: .9rem; }
.logout-btn { border: 1px solid var(--border); background: var(--panel); color: var(--text); border-radius: 10px; padding: 8px 13px; cursor: pointer; }
.logout-btn:hover { border-color: #cbd5e1; background: #f8fafc; }

.login-page { min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 20px; background: radial-gradient(circle at 85% 12%, #e9f3fb 0, transparent 30%), var(--bg); }
.login-shell { width: min(100%, 440px); }
.login-card { background: var(--panel); border: 1px solid var(--border); border-radius: 20px; padding: clamp(22px, 5vw, 34px); box-shadow: 0 18px 55px rgba(24,33,47,.10); }
.login-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.login-brand h1 { margin: 0 0 5px; font-size: clamp(1.35rem, 5vw, 1.8rem); }
.login-brand p { font-size: .95rem; line-height: 1.8; }
.login-mark { width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center; flex: 0 0 auto; background: var(--accent); color: #fff; font-family: var(--en-font); font-weight: 700; font-size: 1.45rem; }
.login-form { display: grid; gap: 8px; }
.login-form label { font-weight: 700; margin-top: 7px; }
.login-form input { width: 100%; min-height: 48px; border: 1px solid var(--border); border-radius: 11px; background: #fff; padding: 10px 13px; color: var(--text); font-family: var(--fa-font); font-size: 1rem; outline: none; }
.login-form input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(57,127,186,.12); }
.password-wrap { position: relative; }
.password-wrap input { padding-left: 72px; }
.password-toggle { position: absolute; inset-inline-end: auto; left: 7px; top: 50%; transform: translateY(-50%); border: 0; background: transparent; color: var(--accent); cursor: pointer; padding: 7px; }
.login-button { margin-top: 14px; min-height: 48px; border: 0; border-radius: 11px; background: var(--accent); color: #fff; font-weight: 700; cursor: pointer; font-size: 1.05rem; }
.login-button:disabled { opacity: .65; cursor: wait; }
.login-error { margin-top: 8px; padding: 9px 11px; border-radius: 9px; background: #fff1f0; color: #a61d24; border: 1px solid #ffccc7; }
.login-warning { margin-bottom: 18px; padding: 11px 12px; border-radius: 10px; background: #fff8e6; color: #805b10; border: 1px solid #f5d98b; line-height: 1.7; }

@media (max-width: 480px) {
  .login-page { padding: 12px; align-items: center; }
  .login-card { border-radius: 16px; }
  .login-brand { align-items: flex-start; }
  .topbar-actions { gap: 5px; }
  .user-chip { display: none; }
  .logout-btn, .filter-toggle { padding: 7px 10px; }
}