@font-face {
  font-family: "ExpoArabic";
  src: url("assets/fonts/ExpoArabic-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: block;
}

:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --ink: #111827;
  --muted: #687282;
  --line: #d9dee7;
  --accent: #ed1c2d;
  --accent-dark: #c91223;
  --cyan: #60c7d7;
  --shadow: 0 18px 42px rgba(17, 24, 39, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "ExpoArabic", "Tahoma", "Arial", sans-serif;
  background:
    linear-gradient(135deg, rgba(96, 199, 215, 0.12), transparent 32%),
    linear-gradient(315deg, rgba(237, 28, 45, 0.08), transparent 28%),
    var(--bg);
  color: var(--ink);
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
}

.workspace {
  width: min(1180px, 100%);
  display: grid;
  grid-template-columns: minmax(300px, 390px) minmax(0, 1fr);
  gap: 24px;
  align-items: stretch;
}

.controls,
.preview-area {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.controls {
  padding: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background:
    linear-gradient(90deg, transparent 42%, #fff 42% 58%, transparent 58%),
    linear-gradient(0deg, transparent 42%, #fff 42% 58%, transparent 58%),
    var(--accent);
  box-shadow: inset 0 -8px 0 rgba(0, 0, 0, 0.1);
}

.brand h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.15;
}

.brand p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.notice {
  border: 1px solid rgba(237, 28, 45, 0.28);
  color: #851322;
  background: #fff1f3;
  border-radius: var(--radius);
  padding: 10px 12px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.notice span {
  direction: ltr;
  unicode-bidi: isolate;
}

.field-group {
  display: grid;
  gap: 7px;
  margin-bottom: 15px;
}

.field-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.range-value {
  color: var(--accent);
  direction: ltr;
  font-size: 13px;
  min-width: 42px;
  text-align: left;
}

label {
  color: #2b3340;
  font-size: 14px;
}

input,
select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 9px 11px;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

input[type="file"] {
  padding: 9px;
  color: var(--muted);
}

input[type="range"] {
  accent-color: var(--accent);
  min-height: 34px;
  padding: 0;
}

input:focus,
select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(96, 199, 215, 0.18);
}

.form-stack {
  display: grid;
  gap: 1px;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 18px;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  color: #fff;
  background: var(--accent);
  transition: transform 160ms ease, background 160ms ease, opacity 160ms ease;
}

button:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
}

.preview-area {
  display: grid;
  align-content: center;
  justify-items: center;
  min-height: 640px;
  padding: 28px;
  overflow: hidden;
}

.canvas-frame {
  width: min(100%, 760px);
  aspect-ratio: 615 / 520;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background:
    linear-gradient(45deg, #eef2f7 25%, transparent 25% 75%, #eef2f7 75%),
    linear-gradient(45deg, #eef2f7 25%, transparent 25% 75%, #eef2f7 75%);
  background-color: #fff;
  background-position: 0 0, 12px 12px;
  background-size: 24px 24px;
  box-shadow: 0 12px 34px rgba(17, 24, 39, 0.16);
}

canvas {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 4px;
}

.status-line {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .app-shell {
    align-items: stretch;
    padding: 14px;
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  .preview-area {
    min-height: auto;
    padding: 16px;
    order: -1;
  }

  .controls {
    padding: 18px;
  }

  .brand h1 {
    font-size: 23px;
  }
}

@media (max-width: 520px) {
  .actions {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}