/* ============================================================
   Connecfy — Design System (v2, full rebuild)
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; }

:root {
  /* ---- Core palette ---- */
  --bg:        #F6F7FB;
  --surface:   #FFFFFF;
  --border:    #E7E9F0;
  --border-2:  #EEF0F5;

  --ink-900:   #14152B;
  --ink-700:   #3A3C55;
  --ink-500:   #6B6E8A;
  --ink-400:   #8B8DA6;
  --ink-300:   #ABADC2;
  --ink-100:   #E4E5EE;

  --brand:       #4F46E5;
  --brand-dark:  #3730A3;
  --brand-light: #EEF0FF;
  --brand-dim:   #C7C9F7;

  --ok:      #12875A;
  --ok-bg:   #E7F7EF;
  --ok-rim:  #BFEBD3;

  --bad:     #D6304A;
  --bad-bg:  #FCE9EC;
  --bad-rim: #F6C7CF;

  --warn:    #B5720A;
  --warn-bg: #FEF3DE;
  --warn-rim:#FADFA6;

  --info:    #2563A8;
  --info-bg: #E7F1FB;

  /* ---- Aliases for pages not yet migrated (backward compat) ---- */
  --n-50: var(--bg); --n50: var(--bg);
  --n-100: var(--ink-100); --n100: var(--ink-100);
  --n-150: var(--border); --n150: var(--border);
  --n-200: var(--border); --n200: var(--border);
  --n-300: var(--ink-300); --n300: var(--ink-300);
  --n-400: var(--ink-400); --n400: var(--ink-400);
  --n-500: var(--ink-500); --n500: var(--ink-500);
  --n-600: var(--ink-700); --n600: var(--ink-700);
  --n-700: var(--ink-700); --n700: var(--ink-700);
  --n-800: var(--ink-900); --n800: var(--ink-900);
  --n-900: var(--ink-900); --n900: var(--ink-900);
  --c-brand: var(--brand); --c-brand-light: var(--brand-light); --c-brand-dim: var(--brand-dim);
  --c-success: var(--ok); --c-success-bg: var(--ok-bg); --c-success-ring: var(--ok-rim);
  --c-warn: var(--warn); --c-warn-bg: var(--warn-bg); --c-warn-ring: var(--warn-rim);
  --ok-bg: var(--ok-bg); --bad: var(--bad); --warn: var(--warn);
  --r-sm: 6px; --r-md: 10px; --r-lg: 14px; --r-xl: 18px; --r-full: 999px;
  --sh-sm: 0 1px 2px rgba(20,21,43,.05);
  --sh-md: 0 6px 20px rgba(20,21,43,.08);
  --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;

  --sidebar-w: 240px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--ink-900);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -.01em; color: var(--ink-900); }
p { margin: 0; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============================================================
   App shell
   ============================================================ */

.app { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  z-index: 40;
  transition: transform .2s ease;
}

.sidebar-head {
  height: 64px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-2);
}
.brand-logo { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.brand-logo img { height: 22px; }
.brand-logo span { font-weight: 800; font-size: 16px; color: var(--ink-900); letter-spacing: -.02em; }

.sidebar-close { display: none; }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--ink-400);
  padding: 16px 12px 6px;
}
.nav-section-label:first-child { padding-top: 4px; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--r-md);
  color: var(--ink-700);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none !important;
  transition: background .12s, color .12s;
}
.nav-item:hover { background: var(--bg); color: var(--ink-900); }
.nav-item.here { background: var(--brand-light); color: var(--brand-dark); font-weight: 700; }
.nav-icon { width: 16px; height: 16px; flex-shrink: 0; opacity: .9; }
.nav-item.here .nav-icon { opacity: 1; }
.sidebar-sep { height: 1px; background: var(--border-2); margin: 10px 8px; }

.sidebar-foot {
  border-top: 1px solid var(--border-2);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.user-chip { display: flex; align-items: center; gap: 10px; padding: 6px; }
.avatar {
  width: 32px; height: 32px; border-radius: var(--r-full);
  background: var(--brand); color: #fff; font-weight: 700; font-size: 13px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.avatar-lg { width: 48px; height: 48px; font-size: 18px; }
.user-info { min-width: 0; display: flex; flex-direction: column; }
.user-email { font-size: 13px; font-weight: 600; color: var(--ink-900); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-plan { font-size: 11.5px; color: var(--ink-400); }
.signout-link, .lang-switch { font-size: 12.5px; color: var(--ink-400); padding: 4px 6px; }
.lang-sw { display: flex; gap: 2px; background: var(--bg); border-radius: var(--r-md); padding: 2px; }
.lang-sw button { border: none; background: none; font-size: 11.5px; font-weight: 700; color: var(--ink-400); padding: 4px 8px; border-radius: 6px; cursor: pointer; }
.lang-sw button.active { background: var(--surface); color: var(--ink-900); box-shadow: var(--sh-sm); }
.signout-link:hover { color: var(--bad); text-decoration: none; }

.staff-badge {
  font-size: 10px; font-weight: 800; text-transform: uppercase; letter-spacing: .05em;
  background: var(--brand); color: #fff; padding: 2px 7px; border-radius: var(--r-full);
}

/* ============================================================
   Main / topbar
   ============================================================ */

.app-main {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.app-topbar {
  height: 64px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 28px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 30;
}
.topbar-left { display: flex; align-items: center; gap: 14px; min-width: 0; }
.topbar-left h1 { font-size: 18px; }
.topbar-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

#nav-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--ink-700); padding: 6px; }

.topbar-search {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 7px 12px; width: 220px; color: var(--ink-400);
}
.topbar-search input { border: none; background: none; outline: none; font-size: 13px; width: 100%; color: var(--ink-900); }

.system-status {
  display: flex; align-items: center; gap: 7px;
  font-size: 12.5px; font-weight: 600; color: var(--ok);
  background: var(--ok-bg); padding: 6px 12px; border-radius: var(--r-full);
}
.status-blip { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px var(--ok-rim); }

.app-body { padding: 28px; flex: 1; }

.nav-overlay { display: none; }

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font-family: inherit; font-size: 13.5px; font-weight: 600;
  padding: 9px 16px; border-radius: var(--r-md);
  border: 1px solid transparent; cursor: pointer;
  transition: background .12s, border-color .12s, transform .05s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); text-decoration: none; }
.btn-secondary { background: var(--surface); color: var(--ink-700); border-color: var(--border); }
.btn-secondary:hover { background: var(--bg); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--ink-500); }
.btn-ghost:hover { background: var(--bg); text-decoration: none; }
.btn-danger { background: var(--bad); color: #fff; }
.btn-danger:hover { background: #B32439; text-decoration: none; }
.btn-sm { padding: 6px 12px; font-size: 12.5px; }
.btn-xs { padding: 4px 9px; font-size: 12px; }
.btn-lg { padding: 12px 22px; font-size: 14.5px; }
.btn-full { width: 100%; }
.btn[disabled], .btn.is-loading { opacity: .6; pointer-events: none; }

/* ============================================================
   Cards / stats
   ============================================================ */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
}
.card-flush { padding: 0; overflow: hidden; }

.page-head { margin-bottom: 20px; }
.page-head h1 { font-size: 20px; margin-bottom: 4px; }
.page-head p { color: var(--ink-500); font-size: 13.5px; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}
.stat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: 18px 20px;
}
.stat-label { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-400); }
.stat-num { font-size: 28px; font-weight: 800; letter-spacing: -.02em; color: var(--ink-900); margin: 8px 0 2px; }
.stat-num.green { color: var(--ok); }
.stat-num.red { color: var(--bad); }
.stat-num.amber { color: var(--warn); }
.stat-num.brand { color: var(--brand); }
.stat-note { font-size: 12.5px; color: var(--ink-400); }

/* ============================================================
   Tables
   ============================================================ */

.table-wrap { overflow-x: auto; }
.table, table.data { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th, table.data th {
  text-align: left; font-size: 11.5px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .05em; color: var(--ink-400); padding: 12px 20px; border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.table td, table.data td { padding: 13px 20px; border-bottom: 1px solid var(--border-2); color: var(--ink-700); vertical-align: middle; }
.table tbody tr:last-child td, table.data tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover, table.data tbody tr:hover { background: var(--bg); }
.col-mono { font-family: var(--mono); font-size: 12.5px; color: var(--ink-700); }

/* ============================================================
   Badges / status
   ============================================================ */

.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11.5px; font-weight: 700; padding: 3px 10px; border-radius: var(--r-full);
}
.badge-success, .badge-online { background: var(--ok-bg); color: var(--ok); }
.badge-danger, .badge-offline { background: var(--bad-bg); color: var(--bad); }
.badge-warning { background: var(--warn-bg); color: var(--warn); }
.badge-brand, .badge-info { background: var(--brand-light); color: var(--brand-dark); }
.badge-queued { background: var(--ink-100); color: var(--ink-500); }
.badge-sending { background: var(--warn-bg); color: var(--warn); }
.badge-sent, .badge-delivered { background: var(--ok-bg); color: var(--ok); }
.badge-failed { background: var(--bad-bg); color: var(--bad); }

.s-dot, .status-dot, .status-blip-sm {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ink-300);
}
.s-dot.online { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-bg); }
.s-dot.offline { background: var(--ink-300); }
.status-pill { font-size: 11.5px; font-weight: 700; padding: 3px 10px; border-radius: var(--r-full); background: var(--ink-100); color: var(--ink-500); }
.status-pill.online { background: var(--ok-bg); color: var(--ok); }
.status-pill.offline { background: var(--bad-bg); color: var(--bad); }

/* ============================================================
   Forms
   ============================================================ */

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field:last-child { margin-bottom: 0; }
.label, .field label { font-size: 13px; font-weight: 600; color: var(--ink-700); }
.label-opt { font-weight: 400; color: var(--ink-400); font-size: 12px; }
.input, input[type=text], input[type=email], input[type=password], input[type=tel], select, textarea {
  font-family: inherit; font-size: 13.5px; width: 100%; height: 40px; padding: 0 13px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md);
  color: var(--ink-900); outline: none; transition: border-color .12s, box-shadow .12s;
}
textarea { height: auto; padding: 10px 13px; resize: vertical; }
.input:focus, input:focus, select:focus, textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-light); }
.input.has-error, input.has-error { border-color: var(--bad); }
.hint { font-size: 12px; color: var(--ink-400); }
.field-error { font-size: 12px; color: var(--bad); }
input[type=checkbox], input[type=radio] { width: 15px; height: 15px; accent-color: var(--brand); }

.empty { text-align: center; padding: 48px 24px; color: var(--ink-400); }
.empty h3 { color: var(--ink-700); font-size: 15px; margin-bottom: 6px; }
.empty p { font-size: 13.5px; max-width: 380px; margin: 0 auto; }
.empty-icon { font-size: 30px; }

/* ============================================================
   Login / auth pages
   ============================================================ */

.auth-page {
  min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: linear-gradient(180deg, var(--brand-light) 0%, var(--bg) 320px);
  padding: 24px;
}
.top-logo { display: flex; align-items: center; gap: 9px; margin-bottom: 28px; text-decoration: none !important; }
.top-logo img { height: 26px; }
.top-logo-name { font-weight: 800; font-size: 19px; color: var(--ink-900); letter-spacing: -.02em; }
.auth-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-xl);
  box-shadow: var(--sh-md); padding: 36px 34px; width: 100%; max-width: 400px;
}
.auth-card-header { margin-bottom: 24px; }
.auth-card-header h1 { font-size: 21px; margin-bottom: 6px; }
.auth-card-sub { color: var(--ink-500); font-size: 13.5px; }
.auth-divider { height: 1px; background: var(--border-2); margin: 22px 0 16px; }
.auth-footer { text-align: center; font-size: 13px; color: var(--ink-500); }
.pw-wrap { position: relative; }
.pw-toggle { position: absolute; right: 11px; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; color: var(--ink-400); padding: 4px; }

/* ============================================================
   Activity chart (vanilla)
   ============================================================ */

.chart-card { padding: 22px 22px 16px; }
.chart-bars { display: flex; align-items: flex-end; gap: 8px; height: 140px; margin-top: 18px; }
.chart-bar-wrap { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 8px; height: 100%; justify-content: flex-end; }
.chart-bar {
  width: 100%; max-width: 34px; background: var(--brand-light); border-radius: 6px 6px 2px 2px;
  position: relative; transition: height .5s cubic-bezier(.2,.8,.2,1);
}
.chart-bar.is-today { background: var(--brand); }
.chart-bar-label { font-size: 11px; color: var(--ink-400); font-weight: 600; }

/* ============================================================
   Quick action cards
   ============================================================ */

.qa-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; margin-bottom: 24px; }
.qa-card {
  display: flex; align-items: center; gap: 14px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 16px; text-decoration: none !important; transition: box-shadow .15s, border-color .15s;
}
.qa-card:hover { box-shadow: var(--sh-md); border-color: var(--brand-dim); }
.qa-icon { width: 38px; height: 38px; border-radius: var(--r-md); background: var(--brand-light); color: var(--brand); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.qa-card h4 { font-size: 13.5px; margin-bottom: 2px; color: var(--ink-900); }
.qa-card p { font-size: 12.5px; color: var(--ink-500); }

/* SIM card grid */
.sim-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.sim-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 18px; text-decoration: none !important; color: inherit; transition: box-shadow .15s, border-color .15s; }
.sim-card:hover { box-shadow: var(--sh-md); border-color: var(--brand-dim); }
.sim-icon { width: 38px; height: 38px; border-radius: var(--r-md); background: var(--bg); display: flex; align-items: center; justify-content: center; font-size: 18px; margin-bottom: 12px; }
.sim-icon.online { background: var(--ok-bg); }
.battery { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-500); }
.battery-track { width: 34px; height: 6px; border-radius: var(--r-full); background: var(--ink-100); overflow: hidden; }
.battery-fill { height: 100%; background: var(--ok); }
.battery-fill.mid { background: var(--warn); }
.battery-fill.low { background: var(--bad); }

/* ============================================================
   Flash / toast
   ============================================================ */

.flash { display: none; }
#toast-stack { position: fixed; bottom: 20px; right: 20px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
.toast {
  display: flex; align-items: flex-start; gap: 10px; background: var(--ink-900); color: #fff;
  padding: 13px 14px; border-radius: var(--r-md); box-shadow: var(--sh-md); min-width: 260px; max-width: 340px;
  animation: toast-in .18s ease;
}
.toast.out { animation: toast-out .16s ease forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }
@keyframes toast-out { to { opacity: 0; transform: translateY(8px); } }
.toast-icon { font-weight: 800; }
.toast.success .toast-icon { color: #34D399; }
.toast.error .toast-icon { color: #F87171; }
.toast.warning .toast-icon { color: #FBBF24; }
.toast-title { font-size: 13px; font-weight: 600; }
.toast-msg { font-size: 12px; opacity: .8; margin-top: 2px; }
.toast-close { background: none; border: none; color: rgba(255,255,255,.5); cursor: pointer; margin-left: auto; font-size: 15px; }

/* ============================================================
   Misc / pagination
   ============================================================ */

.pager, .pagination { display: flex; align-items: center; gap: 12px; padding: 14px 20px; font-size: 13px; }
.pager a, .pagination a { color: var(--brand); font-weight: 600; }
.pager-cur { color: var(--ink-400); }
.muted { color: var(--ink-400); }
.mono { font-family: var(--mono); }
code, pre { font-family: var(--mono); }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); box-shadow: var(--sh-md); }
  .sidebar.nav-open { transform: translateX(0); }
  .sidebar-close { display: block; position: absolute; top: 14px; right: 14px; background: none; border: none; cursor: pointer; color: var(--ink-500); }
  .app-main { margin-left: 0; }
  #nav-toggle { display: block; }
  .topbar-search { display: none; }
  .nav-overlay { display: none; position: fixed; inset: 0; background: rgba(20,21,43,.35); z-index: 39; }
  .nav-overlay.open { display: block; }
  .app-body { padding: 18px; }
  .app-topbar { padding: 0 16px; }
}