/* mpesa-calculator.css — extends shared.css */

/* ---- PAGE HEADER ---- */
.page-header { background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); }
.page-header-inner { text-align: center; max-width: 700px; }
.page-header h1 { color: white; }
.page-header p { color: #94a3b8; margin: 0 auto; }

/* ---- CALCULATOR WRAPPER ---- */
.calc-wrap {
  max-width: 660px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

/* Tab row */
.tab-row {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1.75rem;
  background: white;
  padding: 0.4rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.tab-btn {
  flex: 1;
  padding: 0.55rem 0.5rem;
  border-radius: 7px;
  font-size: 0.85rem;
  font-weight: 700;
  background: transparent;
  color: var(--muted-fg);
  transition: all 0.15s;
  min-width: 80px;
  text-align: center;
  white-space: nowrap;
  border: none;
  cursor: pointer;
}
.tab-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px rgba(255,106,0,0.3);
}
.tab-btn:hover:not(.active) {
  background: var(--primary-light);
  color: var(--primary);
}

/* Amount input */
.input-group { margin-bottom: 1.5rem; }
.input-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--foreground);
}
.amount-wrap { position: relative; }
.currency-label {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted-fg);
  font-weight: 700;
  font-size: 0.9rem;
  user-select: none;
}
.amount-wrap input {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 3.8rem;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-size: 1.15rem;
  font-weight: 700;
  background: white;
  color: var(--foreground);
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: 'DM Sans', system-ui, sans-serif;
  box-shadow: var(--shadow-sm);
}
.amount-wrap input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(255,106,0,0.1);
}
.amount-wrap input::placeholder { color: #cbd5e1; font-weight: 400; }

/* Results box */
.results-box {
  background: linear-gradient(135deg, #0a0f1e 0%, #0f172a 100%);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 1.25rem;
  border: 1px solid #1e293b;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  min-height: 100px;
  display: flex;
  align-items: center;
}
.results-box > #feeDisplay { width: 100%; }

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}
.result-row:last-child {
  margin-bottom: 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.result-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: #64748b;
}
.result-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.03em;
}
.result-total {
  font-size: 1.4rem;
  font-weight: 800;
  color: white;
  letter-spacing: -0.02em;
}
.result-label-total {
  color: #64748b;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}
.no-fee-msg {
  color: #475569;
  font-size: 0.875rem;
  text-align: center;
  padding: 0.5rem 0;
  width: 100%;
}

/* Clear button */
.btn-clear {
  background: white;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem 1.4rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--muted-fg);
  transition: all 0.2s;
  width: 100%;
  font-family: 'DM Sans', system-ui, sans-serif;
  cursor: pointer;
}
.btn-clear:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

/* Fee table */
.fee-table-section {
  max-width: 660px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}
.fee-table-section h2 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.1rem;
  color: var(--foreground);
}
.fee-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.fee-table th {
  background: #f8fafc;
  padding: 0.75rem 1.1rem;
  text-align: left;
  font-weight: 700;
  color: var(--muted-fg);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  border-bottom: 1px solid var(--border);
}
.fee-table td {
  padding: 0.65rem 1.1rem;
  border-top: 1px solid var(--border-light);
  color: var(--foreground);
}
.fee-table tr:hover td { background: #fafafa; }

/* Responsive */
@media (max-width: 768px) {
  .calc-wrap { padding: 1.75rem 1.25rem; }
  .fee-table-section { padding: 0 1.25rem 3rem; }
}
@media (max-width: 480px) {
  .tab-row { gap: 0.3rem; padding: 0.3rem; }
  .tab-btn { min-width: 58px; font-size: 0.78rem; padding: 0.5rem 0.3rem; }
  .result-value { font-size: 1.6rem; }
  .result-total { font-size: 1.2rem; }
  .results-box { padding: 1.25rem; }
  .fee-table { font-size: 0.8rem; }
  .fee-table th { padding: 0.6rem 0.7rem; font-size: 0.66rem; }
  .fee-table td { padding: 0.55rem 0.7rem; }
  .amount-wrap input { font-size: 16px; }
}