/* Arayuz, uretilen gorselle ayni paleti kullaniyor. */
:root {
  --bg: #0A0D14;
  --panel: #121722;
  --panel-hi: #1A2130;
  --line: #2A3345;
  --grid: #1E2535;
  --text: #EDF1F7;
  --dim: #7C879B;
  --faint: #4A5468;
  --orange: #F7931A;
  --up: #26C281;
  --down: #F0616D;
  --radius: 14px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 "Segoe UI", Inter, Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.top {
  padding: 26px 32px 18px;
  border-bottom: 1px solid var(--grid);
}
.top .brand {
  color: var(--orange);
  font-weight: 700;
  font-size: 13.5px;
  letter-spacing: 0.04em;
}
.top h1 { margin: 4px 0 2px; font-size: 27px; letter-spacing: -0.01em; }
.top .sub { margin: 0; color: var(--dim); font-size: 14px; }

main {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 24px;
  padding: 24px 32px 56px;
  align-items: start;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  padding: 20px;
  display: grid;
  gap: 16px;
  position: sticky;
  top: 20px;
}

.field { display: grid; gap: 7px; border: 0; padding: 0; margin: 0; min-width: 0; }
/* display:grid, hidden'i eziyor; kart tipine gore gizlenen kontroller icin sart. */
[hidden] { display: none !important; }
.field small.note { font-size: 12px; color: var(--faint); text-transform: none; letter-spacing: 0; }
.field > span { font-size: 12px; font-weight: 700; color: var(--dim); letter-spacing: 0.05em; text-transform: uppercase; }
.field > span b { color: var(--text); font-variant-numeric: tabular-nums; }

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

input[type="text"], input:not([type]), select, textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--text);
  padding: 9px 11px;
  font: inherit;
  font-size: 14px;
}
textarea { resize: vertical; line-height: 1.55; font-size: 14.5px; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--orange);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--orange);
  background: transparent;
}

.checks { display: grid; grid-template-columns: 1fr 1fr; gap: 7px 12px; }
.checks label {
  display: flex; align-items: center; gap: 7px;
  font-size: 14px; color: var(--text); cursor: pointer;
}
.checks input { accent-color: var(--orange); }

button {
  background: var(--panel-hi);
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--text);
  padding: 10px 15px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
button:hover { border-color: var(--dim); }
button:active { transform: translateY(1px); }
button.primary { background: var(--orange); border-color: var(--orange); color: #16110A; }
button.primary:hover { filter: brightness(1.08); }
button:disabled { opacity: 0.5; cursor: default; transform: none; }

.hint { margin: 0; font-size: 13px; color: var(--dim); min-height: 1.4em; }
.hint.error { color: var(--down); }

.stage { display: grid; gap: 16px; min-width: 0; }

.preview {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  padding: 12px;
}
.preview canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.actions { display: flex; gap: 10px; flex-wrap: wrap; }

.caption { max-width: 760px; }

/* Grafik gorunur alanin disinda ama gercek olculerde duruyor:
   display:none olsaydi genislik sifir olur, ekran goruntusu bos cikardi. */
#chartHost {
  position: absolute;
  left: -10000px;
  top: 0;
  width: 1480px;
  height: 396px;
  pointer-events: none;
}

@media (max-width: 900px) {
  main { grid-template-columns: 1fr; padding: 18px; }
  .panel { position: static; }
  .top { padding: 20px 18px 14px; }
}

.credits {
  grid-column: 1 / -1;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--faint);
}
.credits a { color: var(--dim); }