/* =============================================================================
   FILE: app.css
   LOCATION: sharx-banking/public/assets/css/app.css
   PURPOSE: Complete UI stylesheet — dark-first, X (Twitter) inspired, fintech grade.
            Typography: Outfit (display/UI) + DM Mono (card numbers/amounts)
   ============================================================================= */

/* ── CSS Variables ─────────────────────────────────────────────────────────── */
:root {
  --bg-base:        #000000;
  --bg-surface:     #0d0d14;
  --bg-card:        #111118;
  --bg-elevated:    #18181f;
  --bg-input:       #0d0d14;
  --bg-hover:       #1a1a24;

  --border:         #222230;
  --border-subtle:  #1a1a22;
  --border-focus:   #0066ff;

  --text-primary:   #f0f0f8;
  --text-secondary: #8888aa;
  --text-muted:     #555570;
  --text-inverse:   #000000;

  --accent:         #0066ff;
  --accent-hover:   #0052cc;
  --accent-dim:     rgba(0,102,255,0.12);
  --accent-glow:    rgba(0,102,255,0.25);

  --success:        #00c853;
  --success-dim:    rgba(0,200,83,0.1);
  --warning:        #ff9100;
  --warning-dim:    rgba(255,145,0,0.1);
  --danger:         #ff3d3d;
  --danger-dim:     rgba(255,61,61,0.1);
  --info:           #00b4ff;

  --card-blue:      linear-gradient(135deg, #0d1a40 0%, #0033aa 50%, #001266 100%);
  --card-dark:      linear-gradient(135deg, #111118 0%, #1e1e2e 100%);

  --radius-sm:      6px;
  --radius-md:      10px;
  --radius-lg:      16px;
  --radius-xl:      24px;
  --radius-full:    9999px;

  --shadow-sm:      0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:      0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg:      0 8px 32px rgba(0,0,0,0.6);
  --shadow-accent:  0 4px 24px rgba(0,102,255,0.3);

  --font-body:      'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:      'DM Mono', 'Courier New', monospace;

  --sidebar-w:      240px;
  --header-h:       60px;

  --transition:     0.18s cubic-bezier(0.4,0,0.2,1);
}

[data-theme="light"] {
  --bg-base:        #f5f5fa;
  --bg-surface:     #ffffff;
  --bg-card:        #ffffff;
  --bg-elevated:    #f0f0f8;
  --bg-input:       #f5f5fa;
  --bg-hover:       #eeeef6;
  --border:         #dddde8;
  --border-subtle:  #e8e8f0;
  --text-primary:   #0a0a14;
  --text-secondary: #555570;
  --text-muted:     #9999b0;
  --card-dark:      linear-gradient(135deg, #e8e8f5 0%, #d8d8ee 100%);
}

/* ── Reset & Base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent); text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: 0.8; }

img { display: block; max-width: 100%; }

/* ── Typography ─────────────────────────────────────────────────────────────── */
h1 { font-size: 28px; font-weight: 700; letter-spacing: -0.5px; }
h2 { font-size: 20px; font-weight: 600; letter-spacing: -0.3px; }
h3 { font-size: 16px; font-weight: 600; }
h4 { font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-muted); }

.mono { font-family: var(--font-mono); }

/* ── App Shell Layout ───────────────────────────────────────────────────────── */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ────────────────────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-logo {
  padding: 20px 20px 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.5px;
}
.logo-link:hover { opacity: 1; }

.logo-mark {
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: var(--shadow-accent);
}

.sidebar-nav {
  list-style: none;
  padding: 12px 12px;
  flex: 1;
}

.sidebar-nav li { margin-bottom: 2px; }

.nav-divider {
  padding: 16px 8px 4px;
  margin-bottom: 2px;
}
.nav-divider span {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-muted);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
}
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  opacity: 1;
}
.nav-item.active {
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 600;
}
.nav-item.active svg { color: var(--accent); }
.nav-logout { color: var(--danger); }
.nav-logout:hover { background: var(--danger-dim); color: var(--danger); }

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  margin-top: 4px;
}

.user-avatar {
  width: 34px;
  height: 34px;
  background: var(--accent);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-meta {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-code {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

.notif-badge {
  background: var(--danger);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  border-radius: var(--radius-full);
  min-width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  flex-shrink: 0;
}

/* ── Mobile Header ──────────────────────────────────────────────────────────── */
.mobile-header {
  display: none;
  position: sticky;
  top: 0; z-index: 90;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  padding: 0 16px;
  align-items: center;
  justify-content: space-between;
}

.menu-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
}
.menu-btn svg { width: 22px; height: 22px; display: block; }

.mobile-logo { font-size: 18px; font-weight: 800; letter-spacing: -0.5px; }

.mobile-notif {
  background: var(--danger);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: var(--radius-full);
  min-width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 99;
  backdrop-filter: blur(2px);
}

/* ── Main Content ───────────────────────────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-width: 0;
}

.page {
  padding: 32px 36px;
  max-width: 1100px;
}

.page-header {
  margin-bottom: 28px;
}
.page-header h1 { margin-bottom: 4px; }
.page-header p { color: var(--text-secondary); font-size: 15px; }

/* ── Auth Shell ─────────────────────────────────────────────────────────────── */
.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg-base);
  position: relative;
  overflow: hidden;
}

.auth-shell::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,102,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  position: relative;
}

.auth-logo {
  text-align: center;
  margin-bottom: 28px;
}
.auth-logo .logo-mark {
  margin: 0 auto 12px;
  width: 48px;
  height: 48px;
  font-size: 22px;
}
.auth-logo h1 { font-size: 22px; }
.auth-logo p { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

/* ── Cards (virtual bank cards) ─────────────────────────────────────────────── */
.bank-card {
  background: var(--card-blue);
  border-radius: var(--radius-lg);
  padding: 24px;
  color: #fff;
  position: relative;
  overflow: hidden;
  aspect-ratio: 1.586;
  max-width: 340px;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255,255,255,0.06);
  cursor: default;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.bank-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-lg), 0 12px 40px rgba(0,102,255,0.25);
}

.bank-card::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 200px;
  height: 200px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-full);
}
.bank-card::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: 10%;
  width: 140px;
  height: 140px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-full);
}

.bank-card.frozen { filter: grayscale(0.7) brightness(0.8); }
.bank-card.expired { filter: grayscale(1) brightness(0.6); }

.card-network {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  opacity: 0.8;
  text-transform: uppercase;
}
.card-brand {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-top: 2px;
}

.card-chip {
  width: 36px;
  height: 28px;
  background: linear-gradient(135deg, #d4a843 0%, #f5d270 50%, #b8902d 100%);
  border-radius: 6px;
  margin: 16px 0 8px;
}

.card-number {
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 3px;
  margin-bottom: 16px;
  opacity: 0.92;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.card-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.6;
  margin-bottom: 2px;
}
.card-value {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.card-status-badge {
  position: absolute;
  top: 12px;
  right: 14px;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
}
.card-status-badge.frozen { background: rgba(0,180,255,0.25); }
.card-status-badge.expired { background: rgba(255,61,61,0.25); }

/* ── UI Cards (dashboard panels) ────────────────────────────────────────────── */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color var(--transition);
}
.stat-card:hover { border-color: var(--border-focus); }

.stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.stat-value {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}
.stat-value.accent { color: var(--accent); }
.stat-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ── Forms ──────────────────────────────────────────────────────────────────── */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-input::placeholder { color: var(--text-muted); }

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23555570' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 36px;
  cursor: pointer;
}

.form-textarea { min-height: 80px; resize: vertical; }

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-error {
  font-size: 12px;
  color: var(--danger);
  margin-top: 4px;
}

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.1px;
  text-decoration: none;
}
.btn svg { width: 16px; height: 16px; }

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; opacity: 1; box-shadow: var(--shadow-accent); }

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-hover); color: var(--text-primary); opacity: 1; }

.btn-danger {
  background: var(--danger-dim);
  color: var(--danger);
  border: 1px solid rgba(255,61,61,0.2);
}
.btn-danger:hover { background: var(--danger); color: #fff; opacity: 1; }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); opacity: 1; }

.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; border-radius: var(--radius-md); }
.btn-full { width: 100%; }

.btn:disabled, .btn[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Alerts ─────────────────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
  border: 1px solid transparent;
}
.alert-success { background: var(--success-dim); color: var(--success); border-color: rgba(0,200,83,0.2); }
.alert-danger   { background: var(--danger-dim);  color: var(--danger);  border-color: rgba(255,61,61,0.2); }
.alert-warning  { background: var(--warning-dim); color: var(--warning); border-color: rgba(255,145,0,0.2); }
.alert-info     { background: rgba(0,180,255,0.08); color: var(--info);  border-color: rgba(0,180,255,0.15); }

/* ── Tables ─────────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--bg-hover); }

/* ── Badges ─────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-active  { background: var(--success-dim); color: var(--success); }
.badge-frozen  { background: rgba(0,180,255,0.1); color: var(--info); }
.badge-expired { background: var(--danger-dim); color: var(--danger); }
.badge-pending { background: var(--warning-dim); color: var(--warning); }
.badge-admin   { background: var(--accent-dim); color: var(--accent); }
.badge-completed { background: var(--success-dim); color: var(--success); }
.badge-failed    { background: var(--danger-dim); color: var(--danger); }

/* ── Transaction List ───────────────────────────────────────────────────────── */
.tx-list { display: flex; flex-direction: column; gap: 1px; }

.tx-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.tx-item:last-child { border-bottom: none; }

.tx-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.tx-icon svg { width: 16px; height: 16px; }
.tx-icon.sent     { background: var(--danger-dim);  color: var(--danger); }
.tx-icon.received { background: var(--success-dim); color: var(--success); }
.tx-icon.deposit  { background: var(--accent-dim);  color: var(--accent); }

.tx-meta { flex: 1; min-width: 0; }
.tx-desc {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tx-date { font-size: 12px; color: var(--text-muted); margin-top: 1px; }

.tx-amount {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  text-align: right;
}
.tx-amount.debit  { color: var(--danger); }
.tx-amount.credit { color: var(--success); }

/* ── Cards Grid ─────────────────────────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.card-wrapper {
  position: relative;
}
.card-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

/* ── Modal ──────────────────────────────────────────────────────────────────── */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 200;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  padding: 16px;
}
.modal-backdrop.open { display: flex; }

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  width: 100%;
  max-width: 440px;
  animation: modalIn 0.2s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.92) translateY(12px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}
.modal-sub {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}

/* Reveal card details (one-time show) */
.reveal-card {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 16px 0;
}
.reveal-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}
.reveal-row:last-child { margin-bottom: 0; }
.reveal-key { font-size: 12px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.reveal-val { font-family: var(--font-mono); font-size: 14px; font-weight: 500; }

/* ── Tabs ───────────────────────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 2px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: 24px;
  width: fit-content;
}
.tab {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  background: none;
  font-family: var(--font-body);
}
.tab.active {
  background: var(--bg-card);
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* ── Divider ────────────────────────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}
.divider-text {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  margin: 20px 0;
}
.divider-text::before,
.divider-text::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Skeleton / Loading ─────────────────────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-elevated) 25%, var(--bg-hover) 50%, var(--bg-elevated) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* ── Admin Panel ────────────────────────────────────────────────────────────── */
.admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

/* ── Token Display ──────────────────────────────────────────────────────────── */
.token-box {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  word-break: break-all;
  color: var(--accent);
  position: relative;
}
.token-copy {
  position: absolute;
  top: 8px; right: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 11px;
  font-family: var(--font-body);
  color: var(--text-secondary);
  cursor: pointer;
  font-weight: 600;
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  .sidebar-overlay.open {
    display: block;
  }
  .mobile-header { display: flex; }
  .main-content { margin-left: 0; }
  .page { padding: 20px 16px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .cards-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .auth-card { padding: 28px 20px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .modal { padding: 24px 20px; }
}

/* ── Animations ─────────────────────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.page { animation: fadeIn 0.25s ease; }

/* ── Utilities ──────────────────────────────────────────────────────────────── */
.text-muted    { color: var(--text-muted); }
.text-accent   { color: var(--accent); }
.text-success  { color: var(--success); }
.text-danger   { color: var(--danger); }
.text-warning  { color: var(--warning); }
.text-sm       { font-size: 13px; }
.text-xs       { font-size: 11px; }
.font-mono     { font-family: var(--font-mono); }
.font-medium   { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold     { font-weight: 700; }
.mt-auto       { margin-top: auto; }
.mb-0          { margin-bottom: 0; }
.mb-4          { margin-bottom: 16px; }
.mb-6          { margin-bottom: 24px; }
.flex          { display: flex; }
.items-center  { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2         { gap: 8px; }
.gap-3         { gap: 12px; }
.gap-4         { gap: 16px; }
.w-full        { width: 100%; }
.truncate      { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }