/* Hesap Araç Kutusu — Profesyonel Tasarım v3
 * Aydınlık, editöryel, ayırt edici. Jenerik fintech mavisinden uzak.
 */
:root {
  /* Marka — premium indigo */
  --ana: #4f46e5;
  --ana-koyu: #4338ca;
  --ana-acik: #eef2ff;
  --ana-orta: #c7d2fe;

  /* Sonuç / para — emerald */
  --yesil: #059669;
  --yesil-koyu: #047857;
  --yesil-acik: #ecfdf5;

  --kirmizi: #dc2626;
  --kirmizi-acik: #fef2f2;

  /* Nötrler — sıcak slate */
  --zemin: #f6f7fb;
  --yuzey: #ffffff;
  --ink: #0f172a;
  --metin: #334155;
  --metin-orta: #64748b;
  --metin-soluk: #94a3b8;
  --sinir: #e6e8ef;
  --sinir-soluk: #f1f3f8;

  --golge-xs: 0 1px 2px rgba(15,23,42,0.04);
  --golge-sm: 0 1px 3px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
  --golge-md: 0 6px 16px rgba(15,23,42,0.06), 0 2px 6px rgba(15,23,42,0.04);
  --golge-lg: 0 16px 40px rgba(15,23,42,0.10), 0 4px 12px rgba(15,23,42,0.05);
  --golge-xl: 0 24px 60px rgba(79,70,229,0.16), 0 8px 20px rgba(15,23,42,0.06);

  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 18px;
  --r-xl: 24px;
  --gecis: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ana: #818cf8;
    --ana-koyu: #a5b4fc;
    --ana-acik: #1e1b4b;
    --ana-orta: #3730a3;
    --yesil: #34d399;
    --yesil-koyu: #6ee7b7;
    --yesil-acik: #052e23;
    --kirmizi: #f87171;
    --kirmizi-acik: #2d0a0a;
    --zemin: #0a0e1a;
    --yuzey: #121829;
    --ink: #f8fafc;
    --metin: #cbd5e1;
    --metin-orta: #94a3b8;
    --metin-soluk: #64748b;
    --sinir: #232b3e;
    --sinir-soluk: #1a2030;
    --golge-xs: 0 1px 2px rgba(0,0,0,0.5);
    --golge-sm: 0 1px 3px rgba(0,0,0,0.5);
    --golge-md: 0 6px 16px rgba(0,0,0,0.4);
    --golge-lg: 0 16px 40px rgba(0,0,0,0.5);
    --golge-xl: 0 24px 60px rgba(0,0,0,0.6);
  }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, Roboto, sans-serif;
  background: var(--zemin);
  color: var(--metin);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.kapsayici { max-width: 1120px; margin: 0 auto; padding: 0 1.25rem; }

/* ─── Header ──────────────────────────────────────────── */
.site-header {
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--sinir);
  position: sticky; top: 0; z-index: 200;
}
@media (prefers-color-scheme: dark) {
  .site-header { background: rgba(18,24,41,0.85); }
}
.header-ic { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 1rem; }
.site-logo {
  display: flex; align-items: center; gap: 0.55rem;
  font-size: 1.18rem; font-weight: 800; letter-spacing: -0.02em;
  text-decoration: none; color: var(--ink); flex-shrink: 0;
}
.logo-ikon {
  width: 34px; height: 34px;
  background: var(--ana);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1rem; font-weight: 800;
}
.logo-yazi span { color: var(--ana); }
.header-nav { display: flex; align-items: center; gap: 0.25rem; }
.header-nav a {
  color: var(--metin-orta); text-decoration: none; font-size: 0.875rem; font-weight: 600;
  padding: 0.45rem 0.85rem; border-radius: var(--r-sm); transition: var(--gecis);
}
.header-nav a:hover { background: var(--ana-acik); color: var(--ana); }

/* ─── Ana Sayfa Hero (aydınlık, editöryel) ────────────── */
.ana-hero {
  padding: 4rem 0 3rem;
  text-align: center;
  border-bottom: 1px solid var(--sinir);
  background: var(--yuzey);
}
.ana-hero-ic { position: relative; }
.arac-sayaci {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--zemin); border: 1px solid var(--sinir);
  color: var(--metin-orta); font-size: 0.78rem; font-weight: 600;
  padding: 0.35rem 0.85rem; border-radius: 100px; margin-bottom: 1.5rem;
}
.ana-hero h1 {
  font-size: clamp(1.9rem, 5vw, 3.1rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.1;
  color: var(--ink); margin-bottom: 0.9rem;
}
.ana-hero h1 span {
  color: var(--ana);
}
.ana-hero .altyazi {
  color: var(--metin-orta); font-size: clamp(0.95rem, 2vw, 1.1rem);
  max-width: 520px; margin: 0 auto 2rem; line-height: 1.6;
}

/* Arama */
.arama-sarici { max-width: 620px; margin: 0 auto; }
.arama-kutusu {
  position: relative; display: flex; align-items: center;
  background: var(--yuzey); border-radius: 16px;
  box-shadow: var(--golge-xl);
  border: 2px solid transparent; transition: var(--gecis); overflow: hidden;
}
.arama-kutusu:focus-within { border-color: var(--ana); }
.arama-ikon { padding: 0 0.5rem 0 1.1rem; color: var(--metin-soluk); font-size: 1.05rem; flex-shrink: 0; }
.arama-kutusu input {
  flex: 1; padding: 1.05rem 0.5rem; border: none; background: transparent;
  font-size: 1.02rem; color: var(--ink); outline: none;
}
.arama-kutusu input::placeholder { color: var(--metin-soluk); }
.arama-kutusu button {
  margin: 0.4rem; padding: 0.7rem 1.4rem;
  background: var(--ana); color: #fff; border: none; border-radius: 12px;
  font-size: 0.92rem; font-weight: 700; cursor: pointer; flex-shrink: 0; transition: var(--gecis);
}
.arama-kutusu button:hover { background: var(--ana-koyu); }

/* Güven çipleri */
.guven-chipler {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem 1.25rem;
  margin-top: 1.5rem;
}
.guven-chip {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.8rem; font-weight: 600; color: var(--metin-orta);
}
.guven-chip svg { width: 15px; height: 15px; color: var(--yesil); flex-shrink: 0; }

/* ─── Araç Listesi ────────────────────────────────────── */
.araclar-bolumu { padding: 3rem 0 1rem; }
.bolum-baslik {
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--metin-soluk); margin-bottom: 1.25rem;
}
.arac-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem;
}
.arac-karti {
  background: var(--yuzey); border: 1px solid var(--sinir); border-radius: var(--r-lg);
  padding: 1.5rem; text-decoration: none; color: inherit;
  display: flex; flex-direction: column; gap: 0.85rem;
  transition: var(--gecis); box-shadow: var(--golge-sm);
  position: relative; overflow: hidden;
}
.arac-karti::after {
  content: '→'; position: absolute; top: 1.4rem; right: 1.4rem;
  color: var(--metin-soluk); font-size: 1.1rem; opacity: 0;
  transform: translateX(-4px); transition: var(--gecis);
}
.arac-karti:hover {
  transform: translateY(-4px); box-shadow: var(--golge-lg); border-color: var(--ana-orta);
}
.arac-karti:hover::after { opacity: 1; transform: translateX(0); color: var(--ana); }
.kart-ust { display: flex; align-items: flex-start; gap: 0.9rem; }
.kart-ikon {
  width: 46px; height: 46px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
  flex-shrink: 0; background: var(--ana-acik);
}
.kart-baslik-grup { flex: 1; min-width: 0; padding-right: 1.25rem; }
.arac-karti h3 { font-size: 1.02rem; font-weight: 700; color: var(--ink); line-height: 1.3; }
.arac-karti p {
  font-size: 0.85rem; color: var(--metin-orta); line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.kart-etiket {
  display: inline-flex; align-items: center; gap: 0.3rem;
  font-size: 0.68rem; font-weight: 800; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 0.25rem 0.65rem; border-radius: 100px; width: fit-content;
  background: var(--ana-acik); color: var(--ana);
}

/* ─── Araç Sayfası Header ─────────────────────────────── */
.arac-sayfa-header { background: var(--yuzey); border-bottom: 1px solid var(--sinir); padding: 1.85rem 0 1.6rem; }
.arac-sayfa-header .icerik { max-width: 1120px; margin: 0 auto; padding: 0 1.25rem; }
.arac-sayfa-header .etiket-satiri { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.8rem; flex-wrap: wrap; }
.kategori-rozet {
  font-size: 0.7rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 0.28rem 0.7rem; border-radius: 100px; background: var(--ana-acik); color: var(--ana);
}
.guncelleme-bilgi {
  font-size: 0.74rem; font-weight: 600; color: var(--metin-orta);
  display: inline-flex; align-items: center; gap: 0.35rem;
}
.guncelleme-bilgi::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--yesil); box-shadow: 0 0 0 3px var(--yesil-acik); }
.arac-sayfa-header h1 { font-size: clamp(1.45rem, 3vw, 2.1rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.18; color: var(--ink); margin-bottom: 0.5rem; }
.arac-sayfa-header .aciklama { font-size: 0.96rem; color: var(--metin-orta); max-width: 640px; line-height: 1.6; }

/* ─── Hesaplayıcı ─────────────────────────────────────── */
.hesap-sarici { padding: 2rem 0 3rem; }
.hesap-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 720px) { .hesap-grid { grid-template-columns: minmax(310px, 400px) 1fr; align-items: start; } }

.form-kart {
  background: var(--yuzey); border: 1px solid var(--sinir); border-radius: var(--r-xl);
  padding: 1.85rem; box-shadow: var(--golge-md);
}
@media (min-width: 720px) { .form-kart { position: sticky; top: 84px; } }
.form-kart-baslik { font-size: 0.78rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; color: var(--metin-soluk); margin-bottom: 1.5rem; }
.form-grup { margin-bottom: 1.25rem; }
.form-grup:last-of-type { margin-bottom: 0; }
.form-grup label { display: block; font-size: 0.86rem; font-weight: 700; color: var(--metin); margin-bottom: 0.45rem; }
.form-grup .aciklama-metin { font-size: 0.76rem; color: var(--metin-soluk); margin-top: 0.35rem; line-height: 1.45; }
.form-grup input, .form-grup select {
  width: 100%; padding: 0.75rem 1rem;
  background: var(--zemin); border: 2px solid var(--sinir); border-radius: var(--r-sm);
  color: var(--ink); font-size: 0.98rem; font-family: inherit;
  transition: var(--gecis); -webkit-appearance: none;
}
.form-grup select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.85rem center; background-size: 1.05rem;
  padding-right: 2.6rem; cursor: pointer;
}
.form-grup input:focus, .form-grup select:focus {
  outline: none; border-color: var(--ana); background: var(--yuzey);
  box-shadow: 0 0 0 4px rgba(79,70,229,0.12);
}
.hesapla-btn {
  width: 100%; margin-top: 1.6rem; padding: 0.95rem 1.5rem;
  background: var(--ana); color: #fff; border: none; border-radius: var(--r-sm);
  font-size: 1rem; font-weight: 800; cursor: pointer; letter-spacing: -0.01em;
  transition: var(--gecis); box-shadow: 0 4px 14px rgba(79,70,229,0.35);
}
.hesapla-btn:hover { background: var(--ana-koyu); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(79,70,229,0.45); }
.hesapla-btn:active { transform: translateY(0); }

/* Sonuç */
.sonuc-kart { background: var(--yuzey); border: 1px solid var(--sinir); border-radius: var(--r-xl); overflow: hidden; box-shadow: var(--golge-md); min-height: 300px; }
.bos-durum { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 4rem 2rem; gap: 1rem; min-height: 300px; }
.bos-durum-ikon { width: 72px; height: 72px; background: var(--ana-acik); border-radius: var(--r-lg); display: flex; align-items: center; justify-content: center; font-size: 2.1rem; }
.bos-durum p { color: var(--metin-soluk); font-size: 0.92rem; max-width: 260px; }

.net-sonuc-blok {
  padding: 2.1rem 2rem;
  background: linear-gradient(135deg, var(--yesil-acik) 0%, rgba(236,253,245,0.4) 100%);
  border-bottom: 1px solid var(--sinir); text-align: center;
}
@media (prefers-color-scheme: dark) { .net-sonuc-blok { background: linear-gradient(135deg, #052e23, #062a20); } }
.net-sonuc-blok .sonuc-etiket { font-size: 0.74rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em; color: var(--yesil-koyu); margin-bottom: 0.5rem; }
.net-sonuc-blok .sonuc-deger { font-size: clamp(2.1rem, 5vw, 2.9rem); font-weight: 900; color: var(--yesil); letter-spacing: -0.03em; line-height: 1; font-variant-numeric: tabular-nums; }

.dokum-bolum { padding: 1.6rem; }
.dokum-bolum-baslik { font-size: 0.7rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em; color: var(--metin-soluk); margin-bottom: 1rem; }
.dokum-tablo { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.dokum-tablo tr { border-bottom: 1px solid var(--sinir-soluk); }
.dokum-tablo tr:last-child { border-bottom: none; }
.dokum-tablo td { padding: 0.68rem 0.5rem; vertical-align: middle; }
.dokum-tablo td:first-child { color: var(--metin-orta); padding-right: 1rem; }
.dokum-tablo td.tutar { text-align: right; font-variant-numeric: tabular-nums; font-weight: 700; color: var(--ink); white-space: nowrap; }
.dokum-tablo tr.vurgulu { background: var(--ana-acik); }
.dokum-tablo tr.vurgulu td { font-weight: 800; color: var(--ana); padding-top: 0.85rem; padding-bottom: 0.85rem; }
.dokum-tablo tr.bilgi td { color: var(--metin-soluk); font-size: 0.82rem; }

.kaynak-bolum { padding: 1rem 1.6rem; border-top: 1px solid var(--sinir-soluk); background: var(--zemin); }
.kaynak-metin { font-size: 0.72rem; color: var(--metin-soluk); line-height: 1.5; }
.kaynak-metin strong { color: var(--metin); }

.hata-blok {
  margin: 1.6rem; padding: 1rem 1.25rem;
  background: var(--kirmizi-acik); border: 1px solid rgba(220,38,38,0.2); border-radius: var(--r-sm);
  color: var(--kirmizi); font-size: 0.9rem; display: flex; align-items: flex-start; gap: 0.6rem;
}

/* ─── SSS ──────────────────────────────────────────────── */
.sss-bolumu { padding: 2.5rem 0; }
.sss-bolumu h2 { font-size: 1.45rem; font-weight: 800; letter-spacing: -0.025em; color: var(--ink); margin-bottom: 1.25rem; }
.sss-liste { display: flex; flex-direction: column; gap: 0.65rem; }
.sss-madde { background: var(--yuzey); border: 1px solid var(--sinir); border-radius: var(--r-md); overflow: hidden; transition: var(--gecis); }
.sss-madde[open] { box-shadow: var(--golge-md); border-color: var(--ana-orta); }
.sss-madde summary {
  padding: 1.05rem 1.3rem; cursor: pointer; font-weight: 700; font-size: 0.94rem; color: var(--ink);
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  -webkit-tap-highlight-color: transparent; user-select: none;
}
.sss-madde summary::-webkit-details-marker { display: none; }
.sss-chevron {
  width: 22px; height: 22px; border: 2px solid var(--sinir); border-radius: 100px;
  display: flex; align-items: center; justify-content: center; font-size: 0.72rem; color: var(--ana);
  flex-shrink: 0; transition: var(--gecis);
}
.sss-madde[open] .sss-chevron { transform: rotate(180deg); background: var(--ana); border-color: var(--ana); color: #fff; }
.sss-madde p { padding: 0 1.3rem 1.2rem; color: var(--metin); font-size: 0.9rem; line-height: 1.7; }

/* ─── Diğer Araçlar ──────────────────────────────────── */
.diger-araclar-bolumu { padding: 0 0 3rem; }
.diger-araclar-bolumu h2 { font-size: 1.15rem; font-weight: 800; color: var(--ink); margin-bottom: 1rem; }
.diger-arac-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(245px, 1fr)); gap: 0.75rem; }
.diger-arac-karti {
  background: var(--yuzey); border: 1px solid var(--sinir); border-radius: var(--r-md);
  padding: 1.1rem; text-decoration: none; color: inherit;
  display: flex; align-items: center; gap: 0.8rem; transition: var(--gecis);
}
.diger-arac-karti:hover { border-color: var(--ana-orta); box-shadow: var(--golge-md); transform: translateY(-2px); }
.diger-arac-karti .mini-ikon { width: 38px; height: 38px; border-radius: var(--r-sm); display: flex; align-items: center; justify-content: center; font-size: 1.05rem; flex-shrink: 0; background: var(--ana-acik); }
.diger-arac-karti .diger-arac-metin { flex: 1; min-width: 0; }
.diger-arac-karti h4 { font-size: 0.88rem; font-weight: 700; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 0.12rem; }
.diger-arac-karti p { font-size: 0.76rem; color: var(--metin-soluk); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ─── Footer ──────────────────────────────────────────── */
.site-footer { background: var(--yuzey); border-top: 1px solid var(--sinir); padding: 2.75rem 0; margin-top: 1.5rem; }
.footer-ic { max-width: 1120px; margin: 0 auto; padding: 0 1.25rem; display: flex; flex-direction: column; gap: 1.25rem; align-items: center; text-align: center; }
.footer-logo { font-size: 1.12rem; font-weight: 800; color: var(--ink); text-decoration: none; }
.footer-logo span { color: var(--ana); }
.footer-metin { font-size: 0.82rem; color: var(--metin-soluk); max-width: 500px; line-height: 1.6; }
.footer-linkler { display: flex; gap: 0.5rem 1.5rem; flex-wrap: wrap; justify-content: center; }
.footer-linkler a { font-size: 0.8rem; color: var(--metin-orta); text-decoration: none; }
.footer-linkler a:hover { color: var(--ana); }

/* ─── Animasyon ───────────────────────────────────────── */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.sonuc-animasyonlu { animation: fadeInUp 0.28s ease both; }

/* ─── Responsive ──────────────────────────────────────── */
@media (max-width: 640px) {
  .ana-hero { padding: 3rem 0 2.25rem; }
  .araclar-bolumu { padding: 2rem 0 0.5rem; }
  .hesap-sarici { padding: 1.25rem 0 2rem; }
  .form-kart { padding: 1.4rem; border-radius: var(--r-lg); }
  .form-kart { position: static; }
  .diger-arac-grid { grid-template-columns: 1fr; }
  .guven-chipler { gap: 0.4rem 1rem; }
}

/* ─── Canlı Döviz Kartı ───────────────────────────────── */
.doviz-kart {
  margin: 1.75rem auto 0;
  max-width: 420px;
  background: var(--yuzey);
  border: 1px solid var(--sinir);
  border-radius: var(--r-lg);
  padding: 1rem 1.25rem 1.1rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
  text-align: left;
}
.doviz-kart-baslik {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--metin-orta);
  margin-bottom: 0.65rem;
}
.doviz-kaynak { font-size: 0.7rem; font-weight: 500; color: var(--metin-soluk); }
.doviz-satirlar { display: flex; flex-direction: column; gap: 0.45rem; }
.doviz-satir {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 0.65rem;
  background: var(--zemin, #f8fafc);
  border-radius: var(--r-sm, 8px);
}
.doviz-ad { font-size: 0.9rem; color: var(--metin-orta); }
.doviz-deger { font-size: 1rem; font-weight: 700; color: var(--metin); font-variant-numeric: tabular-nums; }
.doviz-yukleniyor { font-size: 0.85rem; color: var(--metin-soluk); text-align: center; padding: 0.6rem 0; }
@media (max-width: 640px) {
  .doviz-kart { max-width: 100%; }
}