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

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #F0F2F5;
  color: #141827;
  min-height: 100vh;
}

/* ── HEADER ── */
header {
  background: #141827;
  padding: 12px 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.3);
  border-bottom: 3px solid #5EDFE5;
}
header img.site-logo { height: 40px; }
.header-sub {
  font-size: .8rem;
  color: #8ba4bf;
  margin-left: 4px;
}

/* ── LAYOUT ── */
.container {
  max-width: 900px;
  margin: 28px auto;
  padding: 0 16px 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  background: #fff;
  border-radius: 10px;
  padding: 20px 22px;
  box-shadow: 0 1px 4px rgba(0,0,0,.08);
}

.section-title {
  font-size: .85rem;
  font-weight: 700;
  color: #141827;
  text-transform: uppercase;
  letter-spacing: .8px;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid #5EDFE5;
}

/* ── GRIDS ── */
.grid-2   { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid-3   { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.grid-2-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.two-col  { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── FIELDS ── */
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 4px; }
.field label {
  font-size: .74rem;
  font-weight: 600;
  color: #6c757d;
  text-transform: uppercase;
  letter-spacing: .4px;
}
.field input,
.field textarea,
.field select {
  border: 1.5px solid #dee2e6;
  border-radius: 6px;
  padding: 8px 10px;
  font-size: .88rem;
  color: #141827;
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
  background: #fff;
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: #5EDFE5;
  box-shadow: 0 0 0 3px rgba(94,223,229,.12);
}
.field textarea { resize: vertical; min-height: 70px; }

/* ── ÜRÜNLER TABLE ── */
.urun-header {
  display: flex;
  gap: 8px;
  padding: 6px 4px;
  font-size: .72rem;
  font-weight: 700;
  color: #6c757d;
  text-transform: uppercase;
  letter-spacing: .5px;
  border-bottom: 1.5px solid #dee2e6;
  margin-bottom: 6px;
}
.urun-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}
.urun-row input {
  border: 1.5px solid #dee2e6;
  border-radius: 6px;
  padding: 7px 9px;
  font-size: .86rem;
  color: #141827;
  min-width: 0;
  transition: border-color .15s;
}
.urun-row input:focus {
  outline: none;
  border-color: #5EDFE5;
  box-shadow: 0 0 0 3px rgba(94,223,229,.12);
}
.row-total {
  font-size: .86rem;
  font-weight: 700;
  color: #141827;
  text-align: right;
  padding-right: 4px;
  white-space: nowrap;
}
.btn-remove {
  background: #fff;
  border: 1.5px solid #dee2e6;
  border-radius: 6px;
  color: #dc3545;
  cursor: pointer;
  font-size: .8rem;
  padding: 6px;
  line-height: 1;
  transition: background .15s, border-color .15s;
  flex-shrink: 0;
}
.btn-remove:hover { background: #fff0f0; border-color: #dc3545; }
.btn-add {
  background: #5EDFE5;
  border: none;
  border-radius: 6px;
  color: #fff;
  font-weight: 700;
  font-size: .82rem;
  padding: 8px 16px;
  cursor: pointer;
  margin-top: 6px;
  transition: background .15s;
}
.btn-add:hover { background: #3FC8CE; }

/* ── ŞARTLAR ── */
.sart-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 6px;
}
.sart-row .sart-cb {
  margin-top: 6px;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  accent-color: #5EDFE5;
}
.sart-row .sart-text {
  flex: 1;
  padding: 5px 8px;
  border: 1px solid #ced4da;
  border-radius: 4px;
  font-size: .85rem;
  line-height: 1.4;
}
.sart-row .sart-text:focus { outline: none; border-color: #5EDFE5; box-shadow: 0 0 0 2px rgba(94,223,229,.2); }
.btn-sart-del {
  background: none;
  border: none;
  color: #adb5bd;
  font-size: .9rem;
  cursor: pointer;
  padding: 4px 6px;
  margin-top: 2px;
  flex-shrink: 0;
}
.btn-sart-del:hover { color: #e74c3c; }
.btn-add-sart {
  margin-top: 6px;
  padding: 5px 12px;
  background: #5EDFE5;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: .82rem;
  cursor: pointer;
  transition: background .15s;
}
.btn-add-sart:hover { background: #3FC8CE; }

/* ── OPTIONAL SECTION ── */
.optional-header { display: flex; align-items: center; }
.optional-header .toggle-label { gap: 10px; font-size: .88rem; }
.optional-badge {
  display: inline-block;
  background: #dee2e6;
  color: #6c757d;
  font-size: .68rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
  margin-left: 8px;
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: .4px;
}
.collapsible { animation: fadeIn .2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* ── CURRENCY ── */
.currency-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
}
.currency-row .field { flex: 1; min-width: 180px; }
.currency-row select {
  border: 1.5px solid #dee2e6;
  border-radius: 6px;
  padding: 8px 10px;
  font-size: .88rem;
  color: #141827;
  width: 100%;
  background: #fff;
  transition: border-color .15s;
}
.currency-row select:focus {
  outline: none;
  border-color: #5EDFE5;
  box-shadow: 0 0 0 3px rgba(94,223,229,.12);
}
.kur-input-group { display: flex; gap: 8px; }
.kur-input-group input {
  flex: 1;
  border: 1.5px solid #dee2e6;
  border-radius: 6px;
  padding: 8px 10px;
  font-size: .88rem;
  color: #141827;
}
.kur-input-group input:focus {
  outline: none;
  border-color: #5EDFE5;
  box-shadow: 0 0 0 3px rgba(94,223,229,.12);
}
.btn-kur {
  background: #141827;
  color: #5EDFE5;
  border: none;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s;
}
.btn-kur:hover { background: #1e2a40; }
.btn-kur.loading { opacity: .6; pointer-events: none; }
.toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .88rem;
  cursor: pointer;
  padding: 8px 0;
}
.toggle-label input[type="checkbox"] { width: 16px; height: 16px; accent-color: #5EDFE5; }

/* ── SUMMARY ── */
.summary-layout {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.summary-box {
  flex: 1;
  min-width: 280px;
  border: 1.5px solid #dee2e6;
  border-radius: 8px;
  overflow: hidden;
}
.sum-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 14px;
  font-size: .88rem;
  border-bottom: 1px solid #f0f0f0;
}
.sum-row:last-child { border-bottom: none; }
.sum-row.total {
  background: #141827;
  color: #5EDFE5;
  font-weight: 700;
  font-size: .95rem;
  padding: 10px 14px;
}

/* ── SUBMIT ── */
.submit-row { display: flex; justify-content: flex-end; }
.btn-generate {
  background: #5EDFE5;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: .5px;
  transition: background .15s, transform .1s;
  box-shadow: 0 2px 8px rgba(94,223,229,.35);
}
.btn-generate:hover { background: #3FC8CE; transform: translateY(-1px); }
.btn-generate:active { transform: translateY(0); }

@media (max-width: 640px) {
  .two-col, .grid-2, .grid-3, .grid-2-2 { grid-template-columns: 1fr; }
  .urun-header { display: none; }
  .currency-row { flex-direction: column; }
}