:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --card: #ffffff;
  --ink: #111827;
  --muted: #667085;
  --line: #e5e7eb;
  --brand: #111827;
  --brand-2: #394150;
  --ok: #047857;
  --warn: #b45309;
  --danger: #b91c1c;
  --radius: 22px;
  --shadow: 0 18px 60px rgba(17, 24, 39, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  direction: rtl;
  font-family: Arial, "Noto Sans Hebrew", sans-serif;
  background: radial-gradient(circle at top left, #eef2ff 0, transparent 34%), var(--bg);
  color: var(--ink);
  line-height: 1.65;
}

a { color: inherit; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 5; background: rgba(245,247,251,.85); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(229,231,235,.75); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 72px; }
.logo { font-weight: 900; letter-spacing: .08em; font-size: 24px; text-decoration: none; }
.nav-links { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.nav-links a, .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 42px; border-radius: 999px; padding: 10px 17px; text-decoration: none; border: 1px solid var(--line); background: #fff; font-weight: 700; cursor: pointer; }
.btn.primary, .nav-links a.primary { background: var(--brand); color: #fff; border-color: var(--brand); }
.btn.ghost { background: transparent; }
.btn.danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn.small { min-height: 34px; padding: 7px 12px; font-size: 13px; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.hero { padding: 82px 0 54px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 32px; align-items: center; }
.eyebrow { display: inline-flex; padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: rgba(255,255,255,.7); font-weight: 700; }
h1 { font-size: clamp(36px, 6vw, 72px); line-height: 1.05; margin: 18px 0; letter-spacing: -.04em; }
.lead { font-size: clamp(18px, 2vw, 23px); color: var(--muted); max-width: 690px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.stat { background: #f9fafb; border: 1px solid var(--line); border-radius: 18px; padding: 18px; }
.stat strong { display: block; font-size: 28px; }
.section { padding: 38px 0; }
.section-title { font-size: 34px; margin: 0 0 10px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature h3 { margin-top: 0; }
.feature p { color: var(--muted); margin-bottom: 0; }
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 32px 0; }
.auth-card { width: min(470px, calc(100% - 32px)); }
.auth-card h1 { font-size: 34px; margin: 0 0 8px; }
form { display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-weight: 700; }
input, textarea, select { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; background: #fff; color: var(--ink); outline: none; }
input:focus, textarea:focus, select:focus { border-color: var(--brand); box-shadow: 0 0 0 4px rgba(17,24,39,.08); }
textarea { resize: vertical; min-height: 82px; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.message { border-radius: 16px; padding: 12px 14px; background: #f3f4f6; color: var(--brand-2); display: none; }
.message.show { display: block; }
.message.error { background: #fef2f2; color: var(--danger); }
.message.success { background: #ecfdf5; color: var(--ok); }
.app-shell { display: grid; grid-template-columns: 270px 1fr; min-height: 100vh; }
.sidebar { background: #0f172a; color: #fff; padding: 28px 20px; position: sticky; top: 0; height: 100vh; }
.sidebar .logo { display: block; margin-bottom: 28px; }
.sidebar nav { display: grid; gap: 8px; }
.sidebar nav a, .sidebar button { width: 100%; color: #fff; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); border-radius: 14px; padding: 11px 12px; text-decoration: none; text-align: right; }
.main { padding: 32px; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 22px; }
.topbar h1 { font-size: 34px; margin: 0; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 22px; }
.metric { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 18px; }
.metric span { color: var(--muted); font-size: 14px; }
.metric strong { display: block; font-size: 26px; margin-top: 4px; }
.table-wrap { overflow: auto; background: #fff; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: right; vertical-align: middle; }
th { color: var(--muted); background: #fafafa; font-size: 14px; }
tr:last-child td { border-bottom: 0; }
.badge { display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; padding: 4px 10px; font-weight: 800; font-size: 12px; background: #f3f4f6; color: var(--brand-2); }
.badge.open, .badge.overdue { background: #fff7ed; color: var(--warn); }
.badge.paid { background: #ecfdf5; color: var(--ok); }
.badge.cancelled { background: #fef2f2; color: var(--danger); }
.admin-grid { display: grid; grid-template-columns: 380px 1fr; gap: 20px; align-items: start; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 20px; box-shadow: var(--shadow); }
.panel h2 { margin: 0 0 14px; }
.tabs { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.tab { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 10px 15px; font-weight: 800; }
.tab.active { background: var(--brand); color: #fff; border-color: var(--brand); }
.hidden { display: none !important; }
.loader { color: var(--muted); padding: 16px 0; }
footer { padding: 38px 0; color: var(--muted); text-align: center; }
@media (max-width: 900px) {
  .hero-grid, .grid-3, .admin-grid { grid-template-columns: 1fr; }
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  .cards, .stats { grid-template-columns: 1fr; }
  .main { padding: 22px 16px; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .form-row { grid-template-columns: 1fr; }
}