:root {
  --blue: #1B3A5C;
  --mid: #2E86AB;
  --green: #27AE60;
  --red: #E74C3C;
  --orange: #F18F01;
  --bg: #F5F7FA;
  --white: #fff;
  --border: #E0E0E0;
  --text: #333;
  --gray: #888;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: 80px;
}

/* Header */
.header {
  background: linear-gradient(135deg, var(--blue), var(--mid));
  color: white;
  padding: 20px 16px 16px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.header h1 { font-size: 18px; font-weight: 700; }
.header p  { font-size: 12px; opacity: .75; margin-top: 2px; }

/* Bottom nav */
.nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: white;
  border-top: 1px solid var(--border);
  display: flex;
  z-index: 20;
}
.nav a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 4px 8px;
  text-decoration: none;
  color: var(--gray);
  font-size: 10px;
  gap: 3px;
  transition: color .15s;
}
.nav a.active, .nav a:hover { color: var(--mid); }
.nav a span.icon { font-size: 20px; }

/* Cards */
.card {
  background: white;
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 1px 6px rgba(0,0,0,.07);
  margin-bottom: 12px;
}
.card-label { font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .7px; color: var(--gray); margin-bottom: 4px; }
.card-value { font-size: 24px; font-weight: 700; color: var(--blue); }
.card-sub   { font-size: 11px; color: var(--gray); margin-top: 2px; }

.container { padding: 16px; }

/* Grid */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }

/* Form elements */
.field { margin-bottom: 16px; }
.label { font-size: 12px; font-weight: 600; color: var(--blue); margin-bottom: 6px; display: block; }
input, select, textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  background: white;
  color: var(--text);
  -webkit-appearance: none;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--mid);
}

/* Buttons */
.btn {
  display: block;
  width: 100%;
  padding: 15px;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  transition: opacity .15s;
}
.btn:active { opacity: .8; }
.btn-primary { background: var(--mid); color: white; }
.btn-green   { background: var(--green); color: white; }
.btn-outline { background: white; color: var(--mid); border: 2px solid var(--mid); }

/* Upload zone */
.upload-zone {
  border: 2.5px dashed var(--border);
  border-radius: 14px;
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  background: #FAFBFC;
  transition: border-color .2s;
}
.upload-zone.drag { border-color: var(--mid); background: #EBF5FB; }
.upload-zone .icon { font-size: 40px; margin-bottom: 10px; }
.upload-zone p    { font-size: 13px; color: var(--gray); }
.upload-zone strong { color: var(--blue); font-size: 15px; }

/* Card type selector */
.card-selector { display: flex; gap: 8px; }
.card-opt {
  flex: 1;
  padding: 12px 8px;
  border: 2px solid var(--border);
  border-radius: 10px;
  text-align: center;
  cursor: pointer;
  font-weight: 700;
  font-size: 13px;
  transition: all .15s;
  background: white;
}
.card-opt.sel-visa       { border-color: #0D47A1; background: #E3F2FD; color: #0D47A1; }
.card-opt.sel-master     { border-color: #4A148C; background: #F3E5F5; color: #4A148C; }
.card-opt.sel-amex       { border-color: #1B5E20; background: #E8F5E9; color: #1B5E20; }

/* Status badge */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
}
.badge-ok      { background: #E8F5E9; color: var(--green); }
.badge-pending { background: #FFF8E1; color: var(--orange); }
.badge-error   { background: #FFEBEE; color: var(--red); }

/* List items */
.list-item {
  display: flex;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}
.list-item:last-child { border-bottom: none; }
.list-item .ico { font-size: 22px; flex-shrink: 0; }
.list-item .info { flex: 1; min-width: 0; }
.list-item .info strong { font-size: 14px; display: block; }
.list-item .info span  { font-size: 11px; color: var(--gray); }
.list-item .amount     { font-size: 15px; font-weight: 700; color: var(--blue); }

/* Toast */
.toast {
  position: fixed;
  top: 20px; left: 50%; transform: translateX(-50%);
  background: #222;
  color: white;
  padding: 12px 20px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  z-index: 999;
  opacity: 0;
  transition: opacity .3s;
  white-space: nowrap;
}
.toast.show { opacity: 1; }

/* Section title */
.section-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .7px;
  color: var(--gray);
  margin: 20px 0 10px;
}

/* Spinner */
.spinner {
  width: 24px; height: 24px;
  border: 3px solid rgba(255,255,255,.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Month pill */
.month-pill {
  background: rgba(255,255,255,.15);
  color: white;
  border: none;
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
}