/* SparkSMS - control panel styles */
:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --border: #e4e8f0;
  --border-strong: #cfd6e3;
  --text: #0f172a;
  --text-2: #334155;
  --muted: #64748b;
  --primary: #4f46e5;
  --primary-600: #4338ca;
  --primary-50: #eef2ff;
  --primary-100: #e0e7ff;
  --spark: #f59e0b;
  --success: #059669;
  --success-50: #ecfdf5;
  --warning: #d97706;
  --warning-50: #fffbeb;
  --danger: #dc2626;
  --danger-50: #fef2f2;
  --info: #0284c7;
  --info-50: #f0f9ff;
  --sidebar: #0b1120;
  --sidebar-2: #131c31;
  --sidebar-text: #94a3b8;
  --sidebar-active: #ffffff;
  --radius: 10px;
  --radius-sm: 7px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 16px rgba(15, 23, 42, .04);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Bengali", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sidebar-w: 248px;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-600); }
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -.01em; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
hr { border: 0; border-top: 1px solid var(--border); margin: 20px 0; }

/* ------------------------------------------------------------------ layout */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w);
  background: linear-gradient(180deg, var(--sidebar) 0%, var(--sidebar-2) 100%);
  color: var(--sidebar-text);
  position: fixed; inset: 0 auto 0 0;
  display: flex; flex-direction: column;
  z-index: 40;
  transition: transform .2s ease;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 20px 18px;
  color: #fff; font-weight: 700; font-size: 17px; letter-spacing: -.02em;
}
.brand-mark {
  width: 32px; height: 32px; border-radius: 9px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  box-shadow: 0 4px 14px rgba(79, 70, 229, .45);
}
.brand-mark svg { width: 18px; height: 18px; }
.brand small { display: block; font-size: 10.5px; font-weight: 500; color: var(--sidebar-text); letter-spacing: .04em; text-transform: uppercase; }
.nav { padding: 6px 12px; flex: 1; overflow-y: auto; }
.nav-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em; color: #64748b; padding: 16px 10px 6px; font-weight: 600; }
.nav a {
  display: flex; align-items: center; gap: 11px;
  padding: 8px 10px; margin: 1px 0;
  border-radius: var(--radius-sm);
  color: var(--sidebar-text); font-weight: 500;
}
.nav a i { font-size: 16px; width: 18px; text-align: center; opacity: .9; }
.nav a:hover { background: rgba(255, 255, 255, .05); color: #e2e8f0; }
.nav a.active { background: rgba(99, 102, 241, .18); color: var(--sidebar-active); box-shadow: inset 2px 0 0 #818cf8; }
.nav .count { margin-left: auto; background: var(--spark); color: #1f1300; font-size: 11px; font-weight: 700; border-radius: 99px; padding: 0 7px; line-height: 18px; }
.sidebar-foot { padding: 14px 16px; border-top: 1px solid rgba(255, 255, 255, .06); }
.user-chip { display: flex; align-items: center; gap: 10px; color: #e2e8f0; }
.avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: #1e293b; color: #c7d2fe; display: grid; place-items: center;
  font-weight: 700; font-size: 13px; flex-shrink: 0;
}
.user-chip .meta { min-width: 0; flex: 1; }
.user-chip .meta div { font-weight: 600; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-chip .meta span { font-size: 11.5px; color: var(--sidebar-text); }
.user-chip button, .user-chip a.icon { background: none; border: 0; color: var(--sidebar-text); cursor: pointer; padding: 6px; border-radius: 6px; font-size: 16px; }
.user-chip button:hover, .user-chip a.icon:hover { color: #fff; background: rgba(255, 255, 255, .06); }

.main { flex: 1; margin-left: var(--sidebar-w); min-width: 0; display: flex; flex-direction: column; }
.topbar {
  height: 60px; display: flex; align-items: center; gap: 14px;
  padding: 0 28px; background: rgba(255, 255, 255, .85);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
}
.topbar h1 { font-size: 16px; }
.topbar .crumbs { color: var(--muted); font-size: 13px; }
.topbar .spacer { flex: 1; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.menu-toggle { display: none; background: none; border: 0; font-size: 20px; cursor: pointer; color: var(--text); padding: 4px; }
.content { padding: 24px 28px 48px; max-width: 1440px; width: 100%; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head h2 { font-size: 22px; }
.page-head p { margin: 4px 0 0; color: var(--muted); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ------------------------------------------------------------------ grid */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-main { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
.stack > * + * { margin-top: 16px; }

/* ------------------------------------------------------------------ cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.card-head h3 { font-size: 14px; }
.card-head .sub { color: var(--muted); font-size: 12.5px; font-weight: 400; }
.card-body { padding: 18px; }
.grid > .card { display: flex; flex-direction: column; }
.grid > .card > .card-foot { margin-top: auto; }
.card-foot { padding: 12px 18px; border-top: 1px solid var(--border); background: var(--surface-2); border-radius: 0 0 var(--radius) var(--radius); }

.stat { padding: 16px 18px; position: relative; overflow: hidden; }
.stat .label { color: var(--muted); font-size: 12.5px; font-weight: 500; display: flex; align-items: center; gap: 6px; }
.stat .value { font-size: 26px; font-weight: 700; letter-spacing: -.02em; margin-top: 6px; font-variant-numeric: tabular-nums; }
.stat .value small { font-size: 13px; font-weight: 500; color: var(--muted); margin-left: 3px; }
.stat .hint { font-size: 12px; color: var(--muted); margin-top: 2px; }
.stat .icon {
  position: absolute; right: 16px; top: 16px; width: 36px; height: 36px; border-radius: 9px;
  display: grid; place-items: center; font-size: 17px;
  background: var(--primary-50); color: var(--primary);
}
.stat .icon.success { background: var(--success-50); color: var(--success); }
.stat .icon.warning { background: var(--warning-50); color: var(--warning); }
.stat .icon.danger { background: var(--danger-50); color: var(--danger); }
.stat .icon.info { background: var(--info-50); color: var(--info); }
.stat.hero { background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%); color: #fff; border: 0; }
.stat.hero .label, .stat.hero .hint, .stat.hero .value small { color: rgba(255, 255, 255, .78); }
.stat.hero .icon { background: rgba(255, 255, 255, .16); color: #fff; }

/* ------------------------------------------------------------------ tables */
.table-wrap { overflow-x: auto; }
table.table { width: 100%; border-collapse: collapse; }
.table th {
  text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em;
  color: var(--muted); font-weight: 600; padding: 10px 16px; background: var(--surface-2);
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
.table td { padding: 11px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: #fafbff; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.table .nowrap { white-space: nowrap; }
/* Message column: one line by default, click to expand the full text (newlines kept). */
.msg-cell { min-width: 200px; max-width: 360px; color: var(--text-2); }
.msg-cell .msg-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.msg-cell.can-expand .msg-text { cursor: pointer; }
.msg-cell.expanded .msg-text { white-space: pre-wrap; overflow-wrap: anywhere; color: var(--text); }
.msg-actions { display: flex; gap: 12px; align-items: center; }
.msg-actions:empty, .msg-actions:not(:has(> :not([hidden]))) { display: none; }
.msg-toggle { background: none; border: 0; padding: 2px 0 0; font: inherit; font-size: 12px; font-weight: 600; color: var(--primary); cursor: pointer; display: inline-flex; gap: 4px; align-items: center; text-transform: none; letter-spacing: 0; }
.msg-toggle:hover { color: var(--primary-600); }
.msg-toggle .less, .msg-toggle.on .more, .msg-cell.expanded .msg-toggle .more { display: none; }
.msg-toggle.on .less, .msg-cell.expanded .msg-toggle .less { display: inline; }
.msg-toggle i { font-size: 11px; transition: transform .15s; }
.msg-cell.expanded .msg-toggle i { transform: rotate(180deg); }
.msg-toggle-all { margin-left: 6px; font-size: 11px; }
.msg-detail { font-size: 12px; color: var(--muted); padding-top: 2px; }
.msg-detail:hover { color: var(--primary); }
.table .check { width: 36px; }
.cell-title { font-weight: 600; color: var(--text); }
.cell-sub { font-size: 12px; color: var(--muted); }
.positive { color: var(--success); }
.negative { color: var(--danger); }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }

/* ------------------------------------------------------------------ badges */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 99px; white-space: nowrap;
  background: #f1f5f9; color: #475569;
}
.badge i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-success { background: var(--success-50); color: var(--success); }
.badge-warning { background: var(--warning-50); color: var(--warning); }
.badge-danger { background: var(--danger-50); color: var(--danger); }
.badge-info { background: var(--info-50); color: var(--info); }
.badge-primary { background: var(--primary-50); color: var(--primary); }
.tag { display: inline-block; font-size: 11.5px; padding: 1px 7px; border-radius: 5px; background: #f1f5f9; color: var(--text-2); font-weight: 500; border: 1px solid var(--border); }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--muted); margin-right: 6px; }
.dot.on { background: var(--success); box-shadow: 0 0 0 3px var(--success-50); }
.dot.off { background: #cbd5e1; }

/* ------------------------------------------------------------------ buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font: inherit; font-weight: 600; font-size: 13.5px;
  padding: 8px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--text);
  cursor: pointer; white-space: nowrap; line-height: 1.2;
  transition: background .12s, border-color .12s, box-shadow .12s;
}
.btn:hover { background: var(--surface-2); color: var(--text); border-color: #b8c2d4; }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--primary-100); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 1px 2px rgba(79, 70, 229, .3); }
.btn-primary:hover { background: var(--primary-600); border-color: var(--primary-600); color: #fff; }
.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { background: #047857; border-color: #047857; color: #fff; }
.btn-danger { color: var(--danger); }
.btn-danger:hover { background: var(--danger-50); border-color: #fca5a5; color: var(--danger); }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-sm { padding: 5px 10px; font-size: 12.5px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }
.inline { display: inline; margin: 0; }

/* ------------------------------------------------------------------ forms */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 18px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-weight: 600; font-size: 13px; margin-bottom: 6px; color: var(--text-2); }
.field .help { font-size: 12px; color: var(--muted); margin-top: 5px; }
.field .error { font-size: 12.5px; color: var(--danger); margin-top: 5px; }
.field.check label { display: flex; align-items: center; gap: 9px; font-weight: 500; cursor: pointer; }
input[type=text], input[type=password], input[type=email], input[type=number], input[type=url],
input[type=date], input[type=datetime-local], input[type=search], select, textarea {
  width: 100%; font: inherit; color: var(--text);
  padding: 8px 11px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--surface); transition: border-color .12s, box-shadow .12s;
}
textarea { resize: vertical; min-height: 80px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-100); }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--danger); }
input[type=checkbox] { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }
input[type=file] { font: inherit; font-size: 13px; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.filters > * { flex: 1 1 150px; min-width: 0; }
.filters .grow { flex: 2 1 220px; }
.filters .btns { flex: 0 0 auto; display: flex; gap: 8px; }
.filters label { font-size: 11.5px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; display: block; margin-bottom: 4px; }

/* ------------------------------------------------------------------ alerts */
.alerts { margin-bottom: 16px; display: grid; gap: 8px; }
.alert { padding: 11px 14px; border-radius: var(--radius-sm); border: 1px solid; display: flex; gap: 10px; align-items: flex-start; font-weight: 500; }
.alert i { font-size: 16px; margin-top: 1px; }
.alert-success { background: var(--success-50); border-color: #a7f3d0; color: #065f46; }
.alert-error, .alert-danger { background: var(--danger-50); border-color: #fecaca; color: #991b1b; }
.alert-warning { background: var(--warning-50); border-color: #fde68a; color: #92400e; }
.alert-info { background: var(--info-50); border-color: #bae6fd; color: #075985; }

/* ------------------------------------------------------------------ misc components */
.kv { display: grid; grid-template-columns: 150px 1fr; gap: 10px 16px; margin: 0; }
.kv dt { color: var(--muted); font-size: 13px; }
.kv dd { margin: 0; font-weight: 500; word-break: break-word; }
.empty { text-align: center; padding: 44px 20px; color: var(--muted); }
.empty i { font-size: 30px; display: block; margin-bottom: 8px; color: #cbd5e1; }
.pagination { display: flex; align-items: center; justify-content: space-between; padding: 12px 18px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; gap: 12px; flex-wrap: wrap; }
.pagination .pages { display: flex; gap: 6px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 99px; background: var(--surface); border: 1px solid var(--border); font-size: 12.5px; color: var(--text-2); font-weight: 500; }
.chip strong { color: var(--text); }
.chip.active { background: var(--primary-50); border-color: var(--primary-100); color: var(--primary); }
.list { list-style: none; margin: 0; padding: 0; }
.list li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 11px 18px; border-bottom: 1px solid var(--border); }
.list li:last-child { border-bottom: 0; }
.bar { height: 6px; background: #eef2f7; border-radius: 99px; overflow: hidden; }
.bar span { display: block; height: 100%; background: var(--primary); border-radius: 99px; }
.message-bubble {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px 12px 12px 4px;
  padding: 12px 14px; white-space: pre-wrap; word-break: break-word; font-size: 14px;
}
.code-block {
  background: #0b1120; color: #e2e8f0; border-radius: var(--radius-sm); padding: 14px 16px;
  font-family: var(--mono); font-size: 12.5px; overflow-x: auto; white-space: pre; line-height: 1.6;
}
.code-block .k { color: #93c5fd; }
.copy-field { display: flex; gap: 8px; }
.copy-field input { font-family: var(--mono); font-size: 13px; background: var(--surface-2); }
.counter { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: var(--muted); margin-top: 8px; }
.counter b { color: var(--text); font-variant-numeric: tabular-nums; }
.estimate { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px dashed var(--border); }
.estimate:last-child { border-bottom: 0; }
.estimate.total { font-weight: 700; font-size: 15px; }
.section-title { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 700; margin: 0 0 10px; }
.split { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.mt-0 { margin-top: 0; } .mt-2 { margin-top: 8px; } .mt-4 { margin-top: 16px; } .mb-4 { margin-bottom: 16px; }
.danger-zone { border-color: #fecaca; }
.chart-box { position: relative; height: 280px; }
.chart-box.sm { height: 220px; }

/* ------------------------------------------------------------------ auth */
.auth { min-height: 100vh; display: grid; grid-template-columns: 1.05fr 1fr; background: var(--surface); }
.auth-side {
  background: radial-gradient(1200px 500px at 0% 0%, rgba(124, 58, 237, .35), transparent 60%),
              radial-gradient(900px 500px at 100% 100%, rgba(79, 70, 229, .45), transparent 60%), var(--sidebar);
  color: #cbd5e1; padding: 48px; display: flex; flex-direction: column; justify-content: space-between;
}
.auth-side .brand { padding: 0; font-size: 20px; }
.auth-side h2 { color: #fff; font-size: 34px; line-height: 1.15; letter-spacing: -.03em; max-width: 460px; }
.auth-side p { max-width: 440px; font-size: 15px; color: #94a3b8; }
.auth-points { display: grid; gap: 12px; margin-top: 28px; }
.auth-points div { display: flex; gap: 10px; align-items: center; color: #e2e8f0; }
.auth-points i { color: #a5b4fc; font-size: 17px; }
.auth-main { display: grid; place-items: center; padding: 40px 24px; }
.auth-card { width: 100%; max-width: 380px; }
.auth-card h1 { font-size: 24px; letter-spacing: -.02em; }
.auth-card .lead { color: var(--muted); margin: 6px 0 26px; }
.auth-card .field { margin-bottom: 16px; }
.auth-card input { padding: 11px 13px; }
.auth-card .btn { padding: 11px; font-size: 14.5px; }

/* ------------------------------------------------------------------ responsive */
@media (max-width: 1180px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-main { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  body.nav-open .sidebar { transform: none; box-shadow: 0 0 40px rgba(0, 0, 0, .35); }
  .main { margin-left: 0; }
  .menu-toggle { display: inline-flex; }
  .content { padding: 18px 16px 40px; }
  .topbar { padding: 0 16px; }
  .grid-2, .grid-3, .form-grid { grid-template-columns: 1fr; }
  .auth { grid-template-columns: 1fr; }
  .auth-side { display: none; }
  .kv { grid-template-columns: 1fr; gap: 2px 0; }
  .kv dd { margin-bottom: 10px; }
}
@media (max-width: 520px) {
  .grid-4 { grid-template-columns: 1fr; }
  .msg-cell { min-width: 170px; max-width: 230px; }
  .topbar-actions .chip { display: none; }
}

/* ------------------------------------------------------------------ payment methods (add balance) */
.pay-methods { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.pay-method { display: block; cursor: pointer; position: relative; }
.pay-method input { position: absolute; opacity: 0; pointer-events: none; }
.pay-card { border: 1.5px solid var(--border); border-radius: var(--radius); padding: 14px; height: 100%; transition: border-color .12s, box-shadow .12s; background: var(--surface); }
.pay-method:hover .pay-card { border-color: var(--border-strong); }
.pay-method input:checked + .pay-card { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-100); }
.pay-method input:focus-visible + .pay-card { box-shadow: 0 0 0 3px var(--primary-100); }
.pay-number { font-size: 18px; font-weight: 600; margin: 6px 0 2px; letter-spacing: .02em; }
.pay-logo { font-weight: 700; font-size: 12px; padding: 3px 9px; border-radius: 6px; color: #fff; background: #475569; }
.pay-bkash { background: #e2136e; }
.pay-nagad { background: #ec1c24; }
.pay-rocket { background: #8c3494; }
.pay-upay { background: #0054a6; }
.pay-bank { background: #0f766e; }
.radio-row { display: flex; gap: 10px; flex-wrap: wrap; }
.radio-row label { display: flex; align-items: center; gap: 8px; padding: 9px 14px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; font-weight: 500; }
.radio-row label:has(input:checked) { border-color: var(--primary); background: var(--primary-50); color: var(--primary); }