/* Arabic Text Fixer — modern dark, responsive UI. */

:root {
  --bg: #0e1116;
  --bg-elev: #161b22;
  --bg-elev-2: #1c232d;
  --border: #2a323d;
  --border-strong: #3a444f;
  --text: #e6edf3;
  --text-muted: #9aa7b4;
  --text-dim: #6e7b89;
  --accent: #4f8cff;
  --accent-hover: #6fa1ff;
  --accent-press: #3d76e0;
  --danger: #ff5d5d;
  --ok: #3fb950;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
  --mono: "Cascadia Code", "Consolas", ui-monospace, monospace;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(79, 140, 255, 0.10), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
}

/* ---------------- Top bar ---------------- */
.topbar {
  padding: 22px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(14, 17, 22, 0.6);
  backdrop-filter: blur(6px);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1280px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-toggle {
  flex: none;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #8a6bff);
  color: #fff;
  font-size: 26px;
  font-weight: 700;
  box-shadow: var(--shadow);
}

.brand-text h1 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: 0.2px;
}

.tagline {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ---------------- Layout ---------------- */
.layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 20px;
  align-items: start;
}

/* Input col 1, Options col 2, Preview full width below. */
.input-panel {
  grid-column: 1;
}
.options {
  grid-column: 2;
}
.preview-panel {
  grid-column: 1 / -1;
}

/* ---- Tablet / single column ---- */
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 18px;
  }
  .panel,
  .options,
  .preview-panel {
    grid-column: 1 !important;
    grid-row: auto !important;
  }
  /* Font controls stack and fill the width instead of overflowing. */
  .font-controls .field,
  .font-controls .field.grow {
    flex: 1 1 100%;
    min-width: 0;
  }
  .font-controls select,
  .font-controls input[type="text"] {
    width: 100%;
    min-width: 0;
  }
}

/* ---- Phone ---- */
@media (max-width: 560px) {
  .topbar {
    padding: 14px 16px;
  }
  .topbar-inner {
    flex-wrap: wrap;
    gap: 10px;
  }
  .brand {
    gap: 12px;
  }
  .brand-mark {
    width: 40px;
    height: 40px;
    font-size: 22px;
  }
  .brand-text h1 {
    font-size: 1.05rem;
  }
  .tagline {
    font-size: 0.8rem;
  }
  .layout {
    padding: 12px;
    gap: 12px;
  }
  .panel {
    padding: 14px;
  }
  .panel-head {
    flex-wrap: wrap;
    row-gap: 4px;
  }
  /* 16px avoids iOS auto-zoom when focusing the field. */
  textarea {
    font-size: 16px;
    min-height: 150px;
  }
  /* Bigger, full-width tap targets. */
  .toolbar {
    gap: 8px;
  }
  .toolbar .btn {
    flex: 1 1 auto;
    padding: 11px 14px;
  }
  .lang-toggle {
    padding: 9px 14px;
  }
  .preview-box {
    padding: 18px 14px;
  }
}

/* ---------------- Panels ---------------- */
.panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-head h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.stat {
  color: var(--text-dim);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

.muted {
  color: var(--text-dim);
  font-size: 0.8rem;
}

/* ---------------- Text areas ---------------- */
textarea {
  width: 100%;
  min-height: 180px;
  resize: vertical;
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-elev-2);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.7;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.18);
}

#input {
  text-align: right;
}

.hint {
  margin: 10px 2px 0;
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ---------------- Toolbar / buttons ---------------- */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.btn {
  appearance: none;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev-2);
  color: var(--text);
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}

.btn:hover {
  border-color: var(--accent);
  background: #222b36;
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-primary:active {
  background: var(--accent-press);
}

.btn-ghost {
  background: transparent;
}

/* ---------------- Options ---------------- */
.opt {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s ease;
}

.opt:hover {
  background: var(--bg-elev-2);
}

.opt input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--accent);
  cursor: pointer;
  flex: none;
}

.opt-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.opt-title {
  font-weight: 600;
  font-size: 0.92rem;
}

.opt-desc {
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.4;
}

/* ---------------- Collapsible options ---------------- */
.options > summary {
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.options > summary::-webkit-details-marker {
  display: none;
}

.options > summary::after {
  content: "\25B8"; /* ▸ */
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: transform 0.15s ease;
}

.options[open] > summary::after {
  transform: rotate(90deg);
}

.opt-list {
  margin-top: 10px;
}

/* ---------------- On-screen keyboard ---------------- */
.keyboard {
  margin-top: 12px;
  padding: 12px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* The `hidden` attribute must win over `.keyboard { display: flex }` so the
   toggle actually shows/hides the keyboard. The attribute+class selector
   (0,2,0) outranks `.keyboard` (0,1,0). */
.keyboard[hidden] {
  display: none;
}

.kb-row {
  display: flex;
  gap: 6px;
  justify-content: center;
  flex-wrap: wrap;
}

.kb-key {
  appearance: none;
  min-width: 38px;
  height: 40px;
  padding: 0 8px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  color: var(--text);
  border-radius: 6px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: background 0.1s ease, transform 0.05s ease;
}

.kb-key:hover {
  background: #232c37;
  border-color: var(--accent);
}

.kb-key:active {
  transform: translateY(1px);
}

.kb-key.kb-wide {
  min-width: 90px;
}

/* ---------------- Font controls ---------------- */
.font-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px;
  margin-bottom: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field.grow {
  flex: 1 1 220px;
  min-width: 180px;
}

.field-label {
  color: var(--text-muted);
  font-size: 0.78rem;
}

select,
input[type="text"] {
  background: var(--bg-elev-2);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  outline: none;
  min-width: 200px;
  max-width: 100%;
}

select:focus,
input[type="text"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.18);
}

option.font-missing {
  color: var(--text-dim);
}

input[type="range"] {
  width: 160px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ---------------- Preview box (dumb LTR renderer) ---------------- */
.preview-box {
  background: var(--bg-elev-2);
  color: var(--text);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  padding: 28px 24px;
  min-height: 120px;
  font-size: 42px;
  line-height: 1.6;
  /* Force a naive left-to-right renderer with no bidi reordering. */
  direction: ltr;
  unicode-bidi: bidi-override;
  text-align: left;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

/* When showing the placeholder (no output yet), render it normally instead of
   in the reversed "dumb renderer" mode so it isn't shown garbled. */
.preview-box.is-placeholder {
  unicode-bidi: normal;
  text-align: center;
  color: var(--text-dim);
}

/* ---------------- Footer ---------------- */
.footer {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 24px 40px;
  color: var(--text-dim);
  font-size: 0.82rem;
  text-align: center;
}

/* ---------------- Toast ---------------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border-strong);
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 50;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.toast-error {
  border-color: var(--danger);
}

.toast.toast-ok {
  border-color: var(--ok);
}