/* ==========================================================================
   calculator-ui.css — Hesaplama aracı görsel yenileme (tüm hesaplama sayfaları)
   Mevcut JS'e dokunmaz: hiçbir id/class değişmedi, sadece görünüm.
   CLS güvenli: min-height/contain kuralları korunur, yeni yükseklik eklenmez.
   ========================================================================== */

:root {
  --calc-accent: #16a085;
  --calc-accent-dark: #0e7c6b;
  --calc-navy: #1e3c72;
  --calc-ink: #2c3e50;
  --calc-muted: #64748b;
  --calc-border: #dbe5ee;
  --calc-bg-soft: #f6fafd;
}

/* --------------------------------------------------------------------------
   1) Kart kabuğu
   -------------------------------------------------------------------------- */
.calculator-container {
  border: 1px solid var(--calc-border);
  border-top: 5px solid var(--calc-accent);
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(20, 45, 80, 0.09);
}

.calculator-title {
  color: var(--calc-ink);
  line-height: 1.35;
}

/* --------------------------------------------------------------------------
   2) Form alanları: etiket ikonları + özel select görünümü
   -------------------------------------------------------------------------- */
.calculator-container .form-group label,
.tool label {
  font-weight: 700;
  color: var(--calc-ink);
  font-size: 0.98rem;
}

.calculator-container label[for="lineSelect"]::before { content: "🚇 "; }
.calculator-container label[for="start"]::before,
.calculator-container label[for="startStation"]::before,
.calculator-container label[for="baslangic-m6"]::before,
.calculator-container label[for="stationSelect"]::before,
.tool label[for="start"]::before { content: "📍 "; }
.calculator-container label[for="end"]::before,
.calculator-container label[for="endStation"]::before,
.calculator-container label[for="bitis-m6"]::before,
.tool label[for="end"]::before { content: "🎯 "; }
.calculator-container label[for="directionSelect"]::before { content: "🧭 "; }
.calculator-container label[for="dayType"]::before { content: "🗓️ "; }

.calculator-container select,
.tool select {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  min-height: 50px;
  padding: 12px 42px 12px 14px;
  font-size: 16px; /* iOS otomatik zoom'u engeller */
  color: var(--calc-ink);
  background-color: #fff;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%2316a085' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  border: 2px solid var(--calc-border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.calculator-container select:hover,
.tool select:hover {
  border-color: #b7c9d9;
}

.calculator-container select:focus,
.tool select:focus {
  outline: none;
  border-color: var(--calc-accent);
  box-shadow: 0 0 0 3px rgba(22, 160, 133, 0.16);
}

/* --------------------------------------------------------------------------
   3) Hesapla butonu
   -------------------------------------------------------------------------- */
.calculator-container form button[type="submit"],
.calculator-container > button,
.calculator-container form > button,
#hesapla-btn-m6,
.tool > button {
  width: 100%;
  min-height: 52px;
  padding: 13px 16px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--calc-accent), var(--calc-navy));
  color: #fff;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(22, 160, 133, 0.28);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.calculator-container form button[type="submit"]:hover,
.calculator-container > button:hover,
.calculator-container form > button:hover,
#hesapla-btn-m6:hover,
.tool > button:hover {
  transform: translateY(-2px);
  box-shadow: 0 7px 18px rgba(22, 160, 133, 0.35);
  filter: brightness(1.04);
}

.calculator-container form button[type="submit"]:active,
.calculator-container > button:active,
.calculator-container form > button:active,
#hesapla-btn-m6:active,
.tool > button:active {
  transform: translateY(0);
  box-shadow: 0 3px 8px rgba(22, 160, 133, 0.25);
}

/* --------------------------------------------------------------------------
   4) Takas (⇅) butonu — calculator-ui.js enjekte eder.
      Sıfır yükseklikli sarmalayıcı: CLS oluşturmaz, iki alan arasına biner.
   -------------------------------------------------------------------------- */
.calc-swap {
  position: relative;
  height: 0;
  z-index: 2;
}

.calc-swap-btn {
  position: absolute;
  right: 0.9rem;
  top: 0;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  min-height: 40px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--calc-border);
  border-radius: 50%;
  background: #fff;
  color: var(--calc-accent-dark);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(20, 45, 80, 0.14);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, color 0.18s ease;
}

.calc-swap-btn:hover {
  border-color: var(--calc-accent);
  color: var(--calc-navy);
  box-shadow: 0 5px 14px rgba(22, 160, 133, 0.3);
}

.calc-swap-btn:focus-visible {
  outline: none;
  border-color: var(--calc-accent);
  box-shadow: 0 0 0 3px rgba(22, 160, 133, 0.25);
}

.calc-swap-btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.3s ease;
}

.calc-swap-btn.calc-swapped svg {
  transform: rotate(180deg);
}

/* --------------------------------------------------------------------------
   5) Sonuç kutusu (standart desen: .results-container > .result-item)
   -------------------------------------------------------------------------- */
@keyframes calcFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.calculator-container .results-container {
  background: var(--calc-bg-soft);
  border: 1px solid var(--calc-border);
  border-left: 5px solid var(--calc-accent);
  border-radius: 12px;
  padding: 1.2rem 1.1rem;
  animation: calcFadeIn 0.35s ease;
}

/* Başlık — sayfada zaten kendi başlığı (h3) varsa ekleme */
.calculator-container .results-container:not(:has(h3))::before {
  content: "📊 Hesaplama Sonucu";
  display: block;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--calc-ink);
  margin-bottom: 0.75rem;
}

.calculator-container .result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  margin-bottom: 0.5rem;
  background: #fff;
  border: 1px solid #e6edf4;
  border-radius: 10px;
}

.calculator-container .result-item:last-child {
  margin-bottom: 0;
}

.calculator-container .result-label {
  font-weight: 600;
  color: var(--calc-muted);
  font-size: 0.95rem;
}

.calculator-container .result-value {
  font-weight: 800;
  font-size: 1rem;
  color: var(--calc-accent-dark);
  background: rgba(22, 160, 133, 0.1);
  padding: 0.28rem 0.75rem;
  border-radius: 999px;
  white-space: nowrap;
}

/* En önemli değer: tahmini süre — belirgin vurgu */
.calculator-container .result-value#totalTime {
  background: linear-gradient(135deg, var(--calc-accent), var(--calc-navy));
  color: #fff;
  font-size: 1.08rem;
  box-shadow: 0 3px 8px rgba(22, 160, 133, 0.3);
}

/* --------------------------------------------------------------------------
   6) Yükleniyor durumu
   -------------------------------------------------------------------------- */
.calculator-container .loading p {
  color: var(--calc-muted);
  font-weight: 600;
  margin-top: 0.5rem;
}

.calculator-container .spinner,
.calculator-container .loading-spinner {
  border-color: rgba(22, 160, 133, 0.15);
  border-top-color: var(--calc-accent);
}

/* --------------------------------------------------------------------------
   7) index.html — Tek Hat / Aktarmalı mod seçici (segmentli görünüm)
   -------------------------------------------------------------------------- */
#hesapModGrubu {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  min-height: 0;
}

#hesapModGrubu label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0;
  padding: 0.55rem 1rem;
  border: 2px solid var(--calc-border);
  border-radius: 999px;
  background: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--calc-muted);
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

#hesapModGrubu label:has(input:checked) {
  border-color: var(--calc-accent);
  background: rgba(22, 160, 133, 0.09);
  color: var(--calc-accent-dark);
}

#hesapModGrubu input[type="radio"] {
  accent-color: var(--calc-accent);
  width: 16px;
  height: 16px;
  margin: 0;
}

/* --------------------------------------------------------------------------
   8) M6 sayfası — hesaplaM6() içinden enjekte edilen sonuç şablonu
   -------------------------------------------------------------------------- */
#sonuc-m6 { animation: calcFadeIn 0.35s ease; }

#sonuc-m6 .sonuc-detay { color: var(--calc-ink); }

#sonuc-m6 .sonuc-baslik h3 {
  margin: 0 0 0.85rem;
  font-size: 1.15rem;
  color: var(--calc-ink);
}

#sonuc-m6 .bilgi-satir {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  margin-bottom: 0.5rem;
  background: #fff;
  border: 1px solid #e6edf4;
  border-radius: 10px;
}

#sonuc-m6 .etiket {
  font-weight: 600;
  color: var(--calc-muted);
  font-size: 0.95rem;
}

#sonuc-m6 .deger {
  font-weight: 800;
  color: var(--calc-accent-dark);
  background: rgba(22, 160, 133, 0.1);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  white-space: nowrap;
}

#sonuc-m6 .deger.sure-vurgu {
  background: linear-gradient(135deg, var(--calc-accent), var(--calc-navy));
  color: #fff;
  font-size: 1.05rem;
}

#sonuc-m6 .guzergar-harita {
  margin-top: 1rem;
  padding: 0.9rem;
  background: #fff;
  border: 1px solid #e6edf4;
  border-radius: 10px;
}

#sonuc-m6 .guzergar-harita h4 {
  margin: 0 0 0.6rem;
  font-size: 1rem;
  color: var(--calc-ink);
}

#sonuc-m6 .durak-listesi {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

#sonuc-m6 .durak-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0.3rem 0.65rem;
  background: var(--calc-bg-soft);
  border: 1px solid var(--calc-border);
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--calc-ink);
}

#sonuc-m6 .durak-item.baslangic {
  background: rgba(22, 160, 133, 0.12);
  border-color: var(--calc-accent);
}

#sonuc-m6 .durak-item.bitis {
  background: rgba(30, 60, 114, 0.1);
  border-color: var(--calc-navy);
}

#sonuc-m6 .ipucu-bilgi {
  margin-top: 0.9rem;
  padding: 0.75rem 0.9rem;
  background: #fff9e6;
  border: 1px solid #f0e3b0;
  border-radius: 10px;
  font-size: 0.92rem;
}

#sonuc-m6 .ipucu-bilgi p { margin: 0; }

#sonuc-m6 .uyari {
  padding: 0.75rem 0.9rem;
  background: #fff4f2;
  border: 1px solid #f3c7bd;
  border-radius: 10px;
  color: #9a3b28;
  font-weight: 600;
}

#sonuc-m6 .uyari p { margin: 0; }

/* --------------------------------------------------------------------------
   9) metrobus-ucret-hesaplama.html — .tool / .form-grid / .results / .result
      (taban stili trend-pages.css'te; burada sadece uyumlaştırma)
   -------------------------------------------------------------------------- */
.tool .results {
  margin-top: 1.25rem;
}

.tool .result {
  border-radius: 10px;
  transition: box-shadow 0.18s ease;
}

.tool .result:hover {
  box-shadow: 0 4px 12px rgba(20, 45, 80, 0.1);
}

.tool .result strong {
  color: var(--calc-accent-dark);
}

/* --------------------------------------------------------------------------
   10) Mobil ve erişilebilirlik
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  .calculator-container .result-item,
  #sonuc-m6 .bilgi-satir {
    flex-wrap: wrap;
    row-gap: 0.25rem;
  }

  .calculator-container .result-value,
  #sonuc-m6 .deger {
    margin-left: auto;
  }

  .calc-swap-btn {
    right: 0.6rem;
    width: 38px;
    height: 38px;
    min-height: 38px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .calculator-container .results-container,
  #sonuc-m6,
  .calc-swap-btn svg {
    animation: none;
    transition: none;
  }

  .calculator-container form button[type="submit"]:hover,
  .calculator-container > button:hover,
  .calculator-container form > button:hover,
  #hesapla-btn-m6:hover,
  .tool > button:hover {
    transform: none;
  }
}