:root {
  --bg: #05070c;
  --card: #10141f;
  --card-2: #0b0f18;
  --text: #f2f4f8;
  --muted: #8b96ab;
  --primary: #10b981;
  --primary-dark: #0d9668;
  --border: #1f2634;
  --danger: #ef4444;
  --warn: #f59e0b;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  direction: rtl;
  line-height: 1.7;
  padding-bottom: 76px; /* مساحة للشريط السفلي بالجوال */
}

header.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.logo {
  font-weight: 800;
  font-size: 19px;
  color: var(--text);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo .dot {
  color: var(--primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

.pill {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--muted);
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.page-title {
  margin: 8px 0 20px;
}

.page-title .eyebrow {
  color: var(--primary);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-title .eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  display: inline-block;
}

.page-title h1 {
  font-size: 28px;
  font-weight: 800;
  margin: 6px 0 4px;
}

.page-title p {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #04160f;
  padding: 13px 22px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  border: none;
  cursor: pointer;
  font-size: 15px;
  width: 100%;
}

.btn:hover {
  background: var(--primary-dark);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.link {
  color: var(--primary);
  text-decoration: none;
  font-size: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  margin-bottom: 16px;
}

.card-label {
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
  font-family: "Courier New", monospace;
}

.balance-value {
  font-size: 42px;
  font-weight: 800;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.balance-value .unit {
  font-size: 16px;
  color: var(--muted);
  font-weight: 600;
}

.balance-usd {
  color: var(--muted);
  font-size: 14px;
  margin-top: 4px;
}

.address-box {
  background: var(--card-2);
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 13px;
  word-break: break-all;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}

.address-box code {
  font-family: "Courier New", monospace;
}

.copy-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}

.copy-btn:hover {
  color: var(--text);
  border-color: var(--primary);
}

/* عناوين محفوظة — 4 في نفس السطر */
.saved-addresses {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.saved-address-card {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 6px;
  text-align: center;
  font-size: 11px;
  font-family: "Courier New", monospace;
  color: var(--muted);
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.saved-address-card:hover,
.saved-address-card.active {
  border-color: var(--primary);
  color: var(--text);
}

.empty-hint {
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  padding: 8px 0;
}

label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 13px;
}

input, select {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-2);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
}

/* خيارات الطاقة — 2x2 */
.options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}

.option-card {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s;
}

.option-card:hover {
  border-color: var(--muted);
}

.option-card.selected {
  border-color: var(--primary);
  background: rgba(16, 185, 129, 0.08);
}

.option-card .amount {
  font-size: 20px;
  font-weight: 800;
}

.option-card .unit {
  font-size: 11px;
  color: var(--muted);
  display: block;
}

.option-card .duration {
  margin-top: 8px;
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
}

.quote-box {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 16px;
}

.quote-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
  padding: 6px 0;
}

.quote-row.total {
  color: var(--text);
  font-weight: 700;
  font-size: 18px;
  border-top: 1px solid var(--border);
  margin-top: 6px;
  padding-top: 12px;
}

.result-box {
  background: var(--card-2);
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-top: 16px;
  font-size: 14px;
  white-space: pre-wrap;
  word-break: break-all;
}

.error-box {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--danger);
  color: #fca5a5;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 13px;
  margin-bottom: 16px;
}

/* جدول العمليات */
table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  text-align: right;
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 12px;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

.badge-completed { background: rgba(16,185,129,0.15); color: var(--primary); }
.badge-pending { background: rgba(245,158,11,0.15); color: var(--warn); }
.badge-failed { background: rgba(239,68,68,0.15); color: var(--danger); }

.amount-positive { color: var(--primary); font-weight: 700; }
.amount-negative { color: var(--text); font-weight: 700; }

/* الشريط السفلي (الجوال والكمبيوتر) */
.bottom-nav {
  position: fixed;
  bottom: 0;
  right: 0;
  left: 0;
  background: var(--card);
  border-top: 1px solid var(--border);
  display: flex;
  z-index: 20;
}

.bottom-nav a {
  flex: 1;
  text-align: center;
  padding: 12px 0 10px;
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
}

.bottom-nav a.active {
  color: var(--primary);
}

.bottom-nav .icon {
  display: block;
  font-size: 18px;
  margin-bottom: 3px;
}

/* صفحات المصادقة */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
}

.auth-card h1 {
  font-size: 22px;
  margin-bottom: 4px;
}

.auth-card p.sub {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 24px;
}

.auth-switch {
  text-align: center;
  margin-top: 16px;
  font-size: 13px;
  color: var(--muted);
}

footer.note {
  text-align: center;
  padding: 20px;
  color: var(--muted);
  font-size: 12px;
}