/* ===================================================
   Kalkulator Nadpłaty Kredytu Hipotecznego – Style
   =================================================== */

:root {
  --mc-primary:       #1a3a5c;
  --mc-primary-light: #2563a8;
  --mc-accent:        #f0a500;
  --mc-accent-dark:   #c98400;
  --mc-bg:            #f7f9fc;
  --mc-card-bg:       #ffffff;
  --mc-border:        #dde3ed;
  --mc-text:          #1e2736;
  --mc-muted:         #6b778d;
  --mc-success:       #0d8a5f;
  --mc-error:         #c0392b;
  --mc-radius:        10px;
  --mc-shadow:        0 4px 24px rgba(0,0,0,.08);
  --mc-font:          'Segoe UI', system-ui, sans-serif;
}

/* ── Wrapper ── */
.mc-wrap {
  font-family: var(--mc-font);
  color: var(--mc-text);
  background: var(--mc-bg);
  border-radius: var(--mc-radius);
  padding: 2rem 2.4rem 2.8rem;
  max-width: 860px;
  margin: 0 auto;
  box-shadow: var(--mc-shadow);
}

.mc-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--mc-primary);
  margin: 0 0 1.8rem;
  line-height: 1.3;
}

/* ── Sections ── */
.mc-section {
  background: var(--mc-card-bg);
  border: 1px solid var(--mc-border);
  border-radius: var(--mc-radius);
  padding: 1.4rem 1.6rem 1.6rem;
  margin-bottom: 1.4rem;
}

.mc-section-title {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--mc-muted);
  margin: 0 0 1.1rem;
}

/* ── Grid ── */
.mc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.1rem 1.4rem;
}

/* ── Fields ── */
.mc-field {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.mc-field label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--mc-primary);
}

.mc-hint {
  font-size: .72rem;
  color: var(--mc-muted);
  margin: 0;
  line-height: 1.45;
}

/* ── Input wrapper ── */
.mc-input-wrap {
  display: flex;
  border: 1.5px solid var(--mc-border);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color .2s;
}

.mc-input-wrap:focus-within {
  border-color: var(--mc-primary-light);
  box-shadow: 0 0 0 3px rgba(37,99,168,.12);
}

.mc-input-wrap input {
  flex: 1;
  border: none;
  outline: none;
  padding: .55rem .8rem;
  font-size: .92rem;
  color: var(--mc-text);
  background: transparent;
  min-width: 0;
}

.mc-unit {
  display: flex;
  align-items: center;
  padding: 0 .8rem;
  background: #eef1f7;
  border-left: 1.5px solid var(--mc-border);
  font-size: .78rem;
  font-weight: 600;
  color: var(--mc-muted);
  white-space: nowrap;
}

/* ── Select ── */
.mc-section select,
.mc-field select {
  width: 100%;
  border: 1.5px solid var(--mc-border);
  border-radius: 6px;
  padding: .55rem .8rem;
  font-size: .92rem;
  color: var(--mc-text);
  background: #fff;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b778d' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .85rem center;
  padding-right: 2.2rem;
  transition: border-color .2s;
}

.mc-section select:focus,
.mc-field select:focus {
  border-color: var(--mc-primary-light);
  box-shadow: 0 0 0 3px rgba(37,99,168,.12);
}

/* ── Radio group ── */
.mc-radio-group {
  display: flex;
  gap: .8rem;
  flex-wrap: wrap;
}

.mc-radio {
  display: inline-flex;
  gap: .5rem;
  cursor: pointer;
  font-size: .88rem;
  font-weight: 500;
  user-select: none;
}

/* Hide native input completely – no space, no influence */
.mc-radio input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  margin: 0;
  padding: 0;
  pointer-events: none;
}

/* Custom circle */
.mc-radio-indicator {
  display: inline-block;
  width: 18px;
  height: 18px;
  min-width: 18px;
  border-radius: 50%;
  border: 2px solid var(--mc-border);
  background: #fff;
  position: relative;
  transition: border-color .15s;
  box-sizing: border-box;
}

/* Dot inside when checked */
.mc-radio-indicator::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mc-primary-light);
  transition: transform .15s;
}

.mc-radio input[type="radio"]:checked + .mc-radio-indicator {
  border-color: var(--mc-primary-light);
}

.mc-radio input[type="radio"]:checked + .mc-radio-indicator::after {
  transform: translate(-50%, -50%) scale(1);
}

.mc-radio:hover .mc-radio-indicator {
  border-color: var(--mc-primary-light);
}

.mc-radio-label {
  line-height: 1;
}

/* ── Panels ── */
.mc-panel {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--mc-border);
}

/* ── Actions ── */
.mc-actions {
  display: flex;
  gap: .8rem;
  flex-wrap: wrap;
  margin-bottom: 1.4rem;
}

.mc-btn {
  border: none;
  border-radius: 7px;
  padding: .7rem 1.8rem;
  font-size: .92rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .18s, transform .1s;
}

.mc-btn:active { transform: scale(.97); }

.mc-btn--primary {
  background: var(--mc-primary);
  color: #fff;
}

.mc-btn--primary:hover {
  background: var(--mc-primary-light);
}

.mc-btn--secondary {
  background: transparent;
  color: var(--mc-primary);
  border: 1.5px solid var(--mc-primary);
}

.mc-btn--secondary:hover {
  background: #eef1f7;
}

/* ── Results ── */
.mc-results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

@media (max-width: 560px) {
  .mc-results-grid { grid-template-columns: 1fr; }
}

.mc-result-card {
  background: var(--mc-card-bg);
  border: 1px solid var(--mc-border);
  border-radius: var(--mc-radius);
  padding: 1.2rem 1.4rem;
}

.mc-result-card--accent {
  background: var(--mc-primary);
  border-color: var(--mc-primary);
  color: #fff;
}

.mc-result-card h4,
.mc-summary h4 {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin: 0 0 .9rem;
  opacity: .75;
}

.mc-result-card--accent h4 { color: #fff; }

.mc-result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: .6rem;
  padding: .35rem 0;
  border-bottom: 1px solid rgba(0,0,0,.07);
  font-size: .88rem;
}

.mc-result-card--accent .mc-result-row {
  border-color: rgba(255,255,255,.15);
}

.mc-result-row:last-child { border-bottom: none; }

.mc-result-row strong {
  font-size: .95rem;
  white-space: nowrap;
}

.mc-result-card--accent .mc-result-row strong {
  color: var(--mc-accent);
}

.mc-summary {
  background: #fff8e6;
  border: 1.5px solid var(--mc-accent);
  border-radius: var(--mc-radius);
  padding: 1.1rem 1.4rem;
}

.mc-summary h4 { color: var(--mc-accent-dark); }

/* ── Error ── */
.mc-error {
  background: #fdf0ef;
  border: 1.5px solid var(--mc-error);
  color: var(--mc-error);
  border-radius: 7px;
  padding: .75rem 1rem;
  font-size: .88rem;
  margin-top: .5rem;
}

/* ── Utilities ── */
.mc-hidden { display: none !important; }

/* ── Responsive tweaks ── */
@media (max-width: 600px) {
  .mc-wrap {
    padding: 1.2rem 1rem 1.6rem;
  }
  .mc-title { font-size: 1.25rem; }
}

/* ════════════════════════════
   DONUT CHARTS
   ════════════════════════════ */
.mc-charts-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.2rem;
}

@media (max-width: 560px) {
  .mc-charts-wrap { grid-template-columns: 1fr; }
}

.mc-chart-card {
  background: var(--mc-card-bg);
  border: 1px solid var(--mc-border);
  border-radius: var(--mc-radius);
  padding: 1.4rem 1.4rem 1.2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .9rem;
}

.mc-chart-card--mod {
  border-color: var(--mc-primary);
  background: #f3f7ff;
}

.mc-chart-title {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--mc-muted);
  margin: 0;
  align-self: flex-start;
}

/* Donut SVG container */
.mc-donut-wrap {
  position: relative;
  width: 260px;
  height: 260px;
}

.mc-donut {
  width: 260px;
  height: 260px;
  display: block;
  overflow: visible;
}

/* Slice base */
.mc-donut-slice {
  transition: transform .2s ease, filter .2s ease;
}

/* Center label */
.mc-donut-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  pointer-events: none;
  padding: 0 18px;
}

.mc-donut-center span {
  font-size: .66rem;
  font-weight: 600;
  color: var(--mc-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  line-height: 1.3;
}

.mc-donut-center strong {
  font-size: 1rem;
  font-weight: 700;
  color: var(--mc-primary);
  line-height: 1.25;
  margin-top: .2rem;
  word-break: break-word;
}

.mc-donut-center em {
  font-style: normal;
  font-size: .72rem;
  color: var(--mc-muted);
  margin-top: .1rem;
}

/* Tooltip bubble */
.mc-donut-tip {
  position: absolute;
  transform: translate(-50%, -50%);
  background: #1e2736;
  color: #fff;
  border-radius: 7px;
  padding: .45rem .75rem;
  pointer-events: none;
  white-space: nowrap;
  z-index: 100;
  box-shadow: 0 4px 16px rgba(0,0,0,.22);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .1rem;
  font-size: .78rem;
  line-height: 1.4;
}

.mc-donut-tip strong {
  font-weight: 700;
  font-size: .8rem;
}

.mc-donut-tip span {
  opacity: .85;
  font-size: .75rem;
}

/* Legend */
.mc-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.mc-legend li {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: .82rem;
}

.mc-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.mc-legend-label {
  flex: 1;
  color: var(--mc-muted);
}

.mc-legend-val {
  font-weight: 600;
  color: var(--mc-text);
  white-space: nowrap;
}

/* ════════════════════════════
   SCHEDULE TABLE
   ════════════════════════════ */
.mc-schedule-wrap {
  margin-top: 1.4rem;
}

.mc-schedule-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .6rem;
  margin-bottom: .8rem;
}

.mc-schedule-heading {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--mc-muted);
  margin: 0;
}

.mc-btn--pdf {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  background: var(--mc-accent);
  color: #fff;
  border: none;
  border-radius: 7px;
  padding: .55rem 1.2rem;
  font-size: .84rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .18s, transform .1s;
  white-space: nowrap;
}

.mc-btn--pdf:hover  { background: var(--mc-accent-dark); }
.mc-btn--pdf:active { transform: scale(.97); }

/* Horizontal scroll on small screens */
.mc-table-scroll {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--mc-radius);
  border: 1px solid var(--mc-border);
  -webkit-overflow-scrolling: touch;
}

.mc-table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  font-size: .84rem;
  background: var(--mc-card-bg);
}

/* Header */
.mc-table thead tr {
  background: var(--mc-primary);
  color: #fff;
}

.mc-table th {
  padding: .75rem 1rem;
  text-align: left;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  white-space: nowrap;
}

.mc-table th:first-child { border-radius: calc(var(--mc-radius) - 1px) 0 0 0; }
.mc-table th:last-child  { border-radius: 0 calc(var(--mc-radius) - 1px) 0 0; }

/* Body rows */
.mc-table tbody tr {
  border-bottom: 1px solid var(--mc-border);
  transition: background .12s;
}

.mc-table tbody tr:last-child { border-bottom: none; }

.mc-table tbody tr:hover { background: #f0f4fb; }

/* Alternating rows */
.mc-table tbody tr:nth-child(even) { background: #f7f9fc; }
.mc-table tbody tr:nth-child(even):hover { background: #edf1f9; }

.mc-table td {
  padding: .6rem 1rem;
  color: var(--mc-text);
  white-space: nowrap;
}

/* Row number cell */
.mc-td-num {
  font-weight: 600;
  color: var(--mc-muted) !important;
  text-align: center;
  width: 70px;
}

/* Overpayment highlight row */
.mc-tr--overpay {
  background: #fff8e6 !important;
}
.mc-tr--overpay:hover { background: #fef0c7 !important; }

/* Overpayment value cell */
.mc-td-ov {
  font-weight: 700;
  color: var(--mc-accent-dark) !important;
}

/* Zero overpayment cell */
.mc-td-zero {
  color: var(--mc-muted) !important;
  opacity: .6;
}

/* Scroll hint on mobile */
@media (max-width: 640px) {
  .mc-table-scroll::after {
    content: '';
    display: block;
  }
  .mc-table th,
  .mc-table td {
    padding: .55rem .7rem;
    font-size: .78rem;
  }
}