/* ============ متغيرات ============ */
:root {
  --bg: #0b0f14;
  --bg-soft: #121822;
  --card: #161d29;
  --border: #223044;
  --text: #e6edf6;
  --muted: #8b9bb4;
  --green: #22c55e;
  --green-dark: #16a34a;
  --red: #ef4444;
  --amber: #f59e0b;
  --blue: #3b82f6;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}
a { color: var(--green); text-decoration: none; }
h1, h2, h3 { margin: 0 0 .6rem; line-height: 1.3; }
p { margin: 0 0 .8rem; }
.hidden { display: none !important; }
.grad {
  background: linear-gradient(135deg, #22c55e, #3b82f6);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ============ الهيدر ============ */
.header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 2rem;
  background: rgba(11,15,20,.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.logo { display: flex; align-items: center; gap: .6rem; font-weight: 800; font-size: 1.2rem; }
.logo-text { color: var(--green); }
.header-nav { display: flex; gap: 1.5rem; font-size: .95rem; }
.header-nav a { color: var(--muted); transition: color .2s; }
.header-nav a:hover { color: var(--green); }

/* ============ Hero ============ */
.hero {
  padding: 5rem 2rem 4rem;
  text-align: center;
  background: radial-gradient(circle at 50% 0%, rgba(34,197,94,.18), transparent 50%);
}
.hero-content { max-width: 720px; margin: 0 auto; }
.badge {
  display: inline-block; padding: .3rem .8rem;
  background: rgba(34,197,94,.15); color: var(--green);
  border: 1px solid rgba(34,197,94,.3); border-radius: 999px;
  font-size: .85rem; margin-bottom: 1rem;
}
.hero h1 { font-size: 2.6rem; margin: 0 0 1rem; }
.lead { color: var(--muted); font-size: 1.1rem; margin-bottom: 2rem; }
.hero-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2.5rem; }
.hero-stats { display: flex; justify-content: center; gap: 3rem; }
.hero-stats div { display: flex; flex-direction: column; align-items: center; }
.hero-stats strong { font-size: 1.8rem; color: var(--green); }
.hero-stats span { color: var(--muted); font-size: .85rem; }

/* ============ Sections ============ */
.section { padding: 4rem 2rem; max-width: 1100px; margin: 0 auto; }
.section h2 { text-align: center; font-size: 2rem; margin-bottom: 2rem; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.2rem; }
.step { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; text-align: center; }
.step .num {
  display: inline-flex; width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: var(--green); color: #07130c; border-radius: 50%;
  font-weight: 800; font-size: 1.2rem; margin-bottom: .8rem;
}

.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.2rem; max-width: 700px; margin: 0 auto; }
.price-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; text-align: center; position: relative; }
.price-card.featured { border-color: var(--green); box-shadow: 0 0 0 1px var(--green), var(--shadow); }
.price-card .badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); }
.price { font-size: 2.4rem; font-weight: 800; color: var(--green); margin: .5rem 0; }

.footer { text-align: center; padding: 2rem; color: var(--muted); border-top: 1px solid var(--border); font-size: .9rem; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .8rem 1.4rem; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg-soft); color: var(--text);
  cursor: pointer; font-size: 1rem; font-family: inherit; font-weight: 600;
  transition: all .2s;
}
.btn:hover { border-color: var(--green); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green); border-color: var(--green); color: #07130c; }
.btn-primary:hover { background: var(--green-dark); }
.btn-danger { background: var(--red); border-color: var(--red); color: #fff; }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; }
.btn-sm { padding: .4rem .8rem; font-size: .85rem; }

/* ============ Modal (دخول/تسجيل) ============ */
.modal {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,.7); backdrop-filter: blur(4px);
  display: none; place-items: center; padding: 1rem;
}
.modal.show { display: grid; }
.modal-box {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 2rem; max-width: 420px; width: 100%; position: relative;
  box-shadow: var(--shadow);
  animation: slideIn .25s ease;
}
@keyframes slideIn { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-close {
  position: absolute; top: .8rem; left: .8rem;
  background: transparent; border: none; color: var(--muted);
  font-size: 1.6rem; cursor: pointer; line-height: 1;
}
.modal-close:hover { color: var(--red); }

.tabs { display: flex; gap: .5rem; margin-bottom: 1.2rem; }
.tab {
  flex: 1; padding: .7rem; background: transparent;
  border: 1px solid var(--border); border-radius: 10px;
  color: var(--muted); cursor: pointer; font-family: inherit; font-size: 1rem;
}
.tab.active { background: var(--green); border-color: var(--green); color: #07130c; font-weight: 700; }
.tab-panel { display: none; flex-direction: column; gap: .8rem; }
.tab-panel.active { display: flex; }

label { display: flex; flex-direction: column; gap: .3rem; font-size: .9rem; color: var(--muted); }
input, select, textarea {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); padding: .7rem .9rem; font-family: inherit; font-size: 1rem; outline: none;
  transition: border .2s;
}
input:focus, select:focus, textarea:focus { border-color: var(--green); }
textarea { resize: vertical; min-height: 120px; }

.err { color: var(--red); font-size: .9rem; margin-top: .8rem; min-height: 1.2rem; white-space: pre-line; }

/* ============ لوحة المستخدم / الأدمن ============ */
#appView, .shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.side {
  background: var(--bg-soft); border-left: 1px solid var(--border);
  padding: 1.2rem; display: flex; flex-direction: column; gap: .3rem;
}
.side .logo { margin-bottom: 1rem; }
.side .nav {
  display: block; padding: .7rem .9rem; border-radius: 10px;
  color: var(--text); font-size: .95rem; transition: background .2s;
}
.side .nav:hover { background: var(--card); }
.side .nav.active { background: var(--green); color: #07130c; font-weight: 700; }
.side .logout { margin-top: auto; color: var(--red); }

.main { padding: 1.5rem 2rem; overflow-y: auto; }
.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.2rem; gap: 1rem; flex-wrap: wrap; }
.topbar h2 { margin: 0; font-size: 1.6rem; }
.pill { background: var(--bg-soft); border: 1px solid var(--border); padding: .35rem .8rem; border-radius: 999px; font-size: .85rem; color: var(--muted); }
.pill.ok { color: var(--green); border-color: var(--green); }

.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.2rem;
}
.card h3 { font-size: .95rem; color: var(--muted); font-weight: 500; margin-bottom: .4rem; }
.card .big { font-size: 1.7rem; font-weight: 800; color: var(--green); }
.card .big.danger { color: var(--red); }
.card .big.amber { color: var(--amber); }
.card .sub { font-size: .85rem; color: var(--muted); }

table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: .7rem .5rem; text-align: right; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; }
tr:hover td { background: var(--bg-soft); }
.tag { padding: .15rem .6rem; border-radius: 999px; font-size: .8rem; font-weight: 700; }
.tag.pending { background: rgba(245,158,11,.15); color: var(--amber); }
.tag.accepted { background: rgba(34,197,94,.15); color: var(--green); }
.tag.rejected { background: rgba(239,68,68,.15); color: var(--red); }
.tag.paid { background: rgba(59,130,246,.15); color: var(--blue); }

.empty { color: var(--muted); text-align: center; padding: 2.5rem; }
.mono { font-family: ui-monospace, Menlo, monospace; font-size: .85rem; word-break: break-all; }

.names-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: .5rem; }
.name-item {
  background: var(--bg-soft); border: 1px solid var(--border);
  padding: .5rem .7rem; border-radius: 8px;
  font-family: ui-monospace, monospace; font-size: .9rem;
  cursor: pointer; transition: all .15s;
}
.name-item:hover { border-color: var(--green); color: var(--green); }

/* ============ Toast ============ */
.toast {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  background: var(--card); border: 1px solid var(--border);
  padding: .9rem 1.4rem; border-radius: 10px;
  box-shadow: var(--shadow); z-index: 200;
  opacity: 0; transition: all .3s; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-6px); }
.toast.ok { border-color: var(--green); }
.toast.err { border-color: var(--red); }

/* ============ موبايل ============ */
@media (max-width: 760px) {
  .header { padding: .8rem 1rem; }
  .header-nav { display: none; }
  .hero { padding: 3rem 1rem 2rem; }
  .hero h1 { font-size: 1.8rem; }
  .hero-stats { gap: 1.5rem; }
  .section { padding: 2.5rem 1rem; }
  #appView, .shell { grid-template-columns: 1fr; }
  .side { flex-direction: row; overflow-x: auto; padding: .6rem; gap: .4rem; }
  .side .logo { display: none; }
  .side .nav { white-space: nowrap; font-size: .85rem; padding: .5rem .7rem; }
  .side .logout { margin-top: 0; }
  .main { padding: 1rem; }
}