@font-face {
  font-family: "KazNet";
  src: url("fonts/KazNet.eot");
  src:
    url("fonts/KazNet.eot?#iefix") format("embedded-opentype"),
    url("fonts/KazNet.woff2") format("woff2"),
    url("fonts/KazNet.woff") format("woff"),
    url("fonts/KazNet.ttf") format("truetype");
  font-display: swap;
}

/* ========== Design Tokens ========== */
:root {
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", "Inter", ui-sans-serif, system-ui;
  --font-arabic: "KazNet", "Geeza Pro", "Scheherazade New", Arial, sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 360ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 420ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Light theme */
:root,
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f8fb;
  --bg-soft: #eef1f6;
  --surface: #ffffff;
  --surface-alt: #fafbfd;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --surface-elevated: rgba(255, 255, 255, 0.92);
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.14);
  --ink: #0f172a;
  --ink-soft: #1e293b;
  --muted: #64748b;
  --muted-soft: #94a3b8;
  --accent: #0ea5e9;
  --accent-strong: #0284c7;
  --accent-soft: rgba(14, 165, 233, 0.12);
  --accent-glow: rgba(14, 165, 233, 0.35);
  --teal: #14b8a6;
  --teal-strong: #0f9b8e;
  --emerald: #10b981;
  --rose: #f43f5e;
  --gradient-primary: linear-gradient(135deg, #0ea5e9 0%, #14b8a6 60%, #10b981 100%);
  --gradient-text: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --gradient-accent-text: linear-gradient(135deg, #0ea5e9 0%, #14b8a6 100%);
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.08),
    0 4px 12px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 12px 40px rgba(14, 165, 233, 0.18);
  --orb-a: rgba(14, 165, 233, 0.28);
  --orb-b: rgba(20, 184, 166, 0.22);
  --orb-c: rgba(244, 114, 182, 0.18);
}

/* Dark theme */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #07090f;
  --bg-soft: #0b1018;
  --surface: #0f1520;
  --surface-alt: #131b29;
  --surface-glass: rgba(20, 27, 41, 0.7);
  --surface-elevated: rgba(20, 27, 41, 0.92);
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);
  --ink: #e2e8f0;
  --ink-soft: #cbd5e1;
  --muted: #94a3b8;
  --muted-soft: #64748b;
  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --accent-soft: rgba(56, 189, 248, 0.16);
  --accent-glow: rgba(56, 189, 248, 0.45);
  --teal: #2dd4bf;
  --teal-strong: #14b8a6;
  --emerald: #34d399;
  --gradient-primary: linear-gradient(135deg, #38bdf8 0%, #2dd4bf 60%, #34d399 100%);
  --gradient-text: linear-gradient(135deg, #f1f5f9 0%, #cbd5e1 100%);
  --gradient-accent-text: linear-gradient(135deg, #38bdf8 0%, #2dd4bf 100%);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.55),
    0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 16px 50px rgba(56, 189, 248, 0.22);
  --orb-a: rgba(56, 189, 248, 0.22);
  --orb-b: rgba(45, 212, 191, 0.2);
  --orb-c: rgba(168, 85, 247, 0.18);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
  }
}

/* ========== Reset & Base ========== */
* {
  box-sizing: border-box;
}

*::selection {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

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

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background var(--transition-slow), color var(--transition-slow);
}

button,
textarea,
input {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: 0;
  background: none;
  padding: 0;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

textarea:focus,
textarea:focus-visible {
  outline: none;
}

.panel:focus-within {
  background: linear-gradient(
    180deg,
    var(--accent-soft) 0%,
    transparent 30%
  );
}

.panel:focus-within .panel-title {
  color: var(--accent-strong);
}

/* ========== Ambient Background ========== */
.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.85;
  will-change: transform;
}

.orb--a {
  width: 520px;
  height: 520px;
  top: -160px;
  left: -120px;
  background: var(--orb-a);
  animation: orbFloat 22s ease-in-out infinite;
}

.orb--b {
  width: 460px;
  height: 460px;
  top: 32%;
  right: -140px;
  background: var(--orb-b);
  animation: orbFloat 26s ease-in-out infinite reverse;
}

.orb--c {
  width: 380px;
  height: 380px;
  bottom: -120px;
  left: 28%;
  background: var(--orb-c);
  animation: orbFloat 30s ease-in-out infinite;
}

@keyframes orbFloat {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(40px, -50px, 0) scale(1.08);
  }
}

@media (prefers-reduced-motion: reduce) {
  .orb {
    animation: none;
  }
}

/* ========== App Shell ========== */
.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 28px;
  width: min(1360px, 100%);
  margin: 0 auto;
  padding: 28px 28px 56px;
  min-height: 100vh;
}

/* ========== Sidebar ========== */
.sidebar {
  position: sticky;
  top: 28px;
  height: fit-content;
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 22px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 6px 16px;
  border-bottom: 1px solid var(--border);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.brand-sub {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 500;
}

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

.nav-label {
  margin: 0 0 4px 8px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-soft);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--ink-soft);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  transition:
    background var(--transition-base),
    color var(--transition-base),
    transform var(--transition-base);
}

.nav-item:hover {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.nav-item.is-active {
  background: var(--surface);
  color: var(--ink);
  box-shadow:
    inset 0 0 0 1px var(--border-strong),
    var(--shadow-sm);
}

.nav-item.is-active .nav-icon {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.nav-icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--surface-alt);
  color: var(--muted);
  border: 1px solid var(--border);
  transition:
    background var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base);
}

.nav-item:hover .nav-icon {
  color: var(--accent-strong);
}

.nav-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.nav-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.005em;
}

.nav-title[dir="rtl"] {
  font-family: var(--font-arabic);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.3;
}

.nav-desc {
  font-size: 0.78rem;
  color: var(--muted);
}

.nav-desc[dir="rtl"] {
  font-family: var(--font-arabic);
  font-size: 0.92rem;
  line-height: 1.4;
}

.nav-label[dir="rtl"] {
  font-family: var(--font-arabic);
  font-size: 0.85rem;
  letter-spacing: 0;
}

.brand-sub[dir="rtl"] {
  font-family: var(--font-arabic);
  font-size: 0.95rem;
}

.theme-toggle-text[dir="rtl"] {
  font-family: var(--font-arabic);
  font-size: 0.95rem;
}

.sidebar-tip[dir="rtl"] {
  font-family: var(--font-arabic);
  font-size: 0.88rem;
  line-height: 1.6;
  text-align: right;
}

.view-subtitle[dir="rtl"] {
  font-family: var(--font-arabic);
  font-size: 1.15rem;
  line-height: 1.7;
  text-align: right;
}

.status-hint[dir="rtl"],
.keyboard-sub[dir="rtl"] {
  font-family: var(--font-arabic);
  font-size: 0.95rem;
  line-height: 1.5;
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-alt);
  color: var(--ink-soft);
  font-size: 0.85rem;
  font-weight: 600;
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base);
}

.theme-toggle:hover {
  border-color: var(--border-strong);
  color: var(--accent-strong);
}

.theme-toggle-icon {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  color: var(--muted);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.theme-toggle-icon--moon {
  display: none;
}

:root[data-theme="dark"] .theme-toggle-icon--sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle-icon--moon {
  display: grid;
}

.theme-toggle-text {
  flex: 1;
  text-align: left;
}

.sidebar-tip {
  margin: 0;
  padding: 0 4px;
  color: var(--muted);
  font-size: 0.74rem;
  line-height: 1.5;
}

/* ========== Workspace ========== */
.workspace {
  min-width: 0;
}

.tool-view {
  display: none;
  animation: viewIn var(--transition-spring);
}

.tool-view.is-active {
  display: block;
}

@keyframes viewIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== View Header ========== */
.view-header {
  margin-bottom: 22px;
  padding: 4px 4px 0;
}

.view-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--surface-glass);
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 14px;
}

.view-eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
  }
}

.view-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.35em;
}

.title-accent {
  background: var(--gradient-accent-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: var(--font-display);
}

.title-accent[dir="rtl"] {
  font-family: var(--font-arabic);
  line-height: 1.6;
}

.title-arrow {
  color: var(--muted-soft);
  font-size: 0.7em;
  font-weight: 500;
}

.view-subtitle {
  max-width: 620px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
}

/* ========== Tool Card ========== */
.tool-card {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface-elevated);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
}

/* ========== Toolbar ========== */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(
    180deg,
    var(--surface-alt) 0%,
    transparent 100%
  );
}

.mode-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.mode-chip {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--surface-alt);
  color: var(--ink-soft);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}

.mode-chip[dir="rtl"] {
  font-family: var(--font-arabic);
  font-size: 0.95rem;
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.mode-arrow {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  color: var(--muted);
}

.mode-swap {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--surface-alt);
  color: var(--muted);
  border: 1px solid var(--border);
  cursor: pointer;
  transition:
    background var(--transition-base),
    color var(--transition-base),
    transform var(--transition-spring),
    border-color var(--transition-base);
}

.mode-swap:hover {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
  transform: rotate(180deg);
}

.mode-swap:active {
  transform: rotate(180deg) scale(0.9);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  padding: 0 14px;
  border-radius: 10px;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  white-space: nowrap;
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
  position: relative;
}

.btn svg {
  flex-shrink: 0;
}

.btn:active {
  transform: translateY(1px) scale(0.98);
}

.btn-ghost {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink-soft);
}

.btn-ghost:hover {
  border-color: var(--border-strong);
  background: var(--surface-alt);
  color: var(--ink);
}

.btn-primary {
  border: 1px solid transparent;
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  filter: brightness(1.06);
  box-shadow:
    var(--shadow-glow),
    0 0 0 4px var(--accent-soft);
}

/* ========== Panels ========== */
.panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
}

.panels::before {
  content: "";
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 50%;
  width: 1px;
  background: linear-gradient(
    180deg,
    transparent 0%,
    var(--border) 30%,
    var(--border) 70%,
    transparent 100%
  );
}

.panel {
  display: flex;
  flex-direction: column;
  min-height: 460px;
  position: relative;
}

.panel--output {
  background: linear-gradient(
    180deg,
    rgba(14, 165, 233, 0.025) 0%,
    transparent 60%
  );
}

:root[data-theme="dark"] .panel--output {
  background: linear-gradient(
    180deg,
    rgba(56, 189, 248, 0.04) 0%,
    transparent 60%
  );
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}

.panel-title {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.panel-meta {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--muted-soft);
  font-variant-numeric: tabular-nums;
}

textarea {
  flex: 1;
  width: 100%;
  min-height: 380px;
  border: 0;
  resize: vertical;
  padding: 22px 24px;
  background: transparent;
  color: var(--ink);
  font-size: 1.02rem;
  line-height: 1.75;
  outline: none;
  font-family: var(--font-sans);
}

textarea::placeholder {
  color: var(--muted-soft);
  opacity: 0.7;
}

textarea[readonly] {
  cursor: default;
}

textarea[dir="rtl"],
.arabic-input,
.key-target,
[dir="rtl"] {
  font-family: var(--font-arabic);
}

textarea[dir="rtl"],
.arabic-input {
  font-size: 1.18rem;
  line-height: 1.9;
}

/* ========== Input Panel (Arabic input view) ========== */
.input-panel {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--border);
}

.arabic-input {
  min-height: 220px;
  padding: 22px 26px;
  font-size: 1.4rem;
  line-height: 2;
}

/* ========== Keyboard ========== */
.keyboard-wrap {
  padding: 22px 20px 24px;
}

.keyboard-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.keyboard-title {
  margin: 0 0 4px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.keyboard-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.keyboard-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 500;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted-soft);
}

.legend-dot--shift {
  background: var(--accent);
}

/* ========== Physical Keyboard ========== */
.keyboard-map {
  --kb-unit: 56px;
  --kb-gap: 6px;
  --kb-bg: linear-gradient(180deg, var(--surface) 0%, var(--surface-alt) 100%);
  --kb-key-shadow:
    inset 0 -2px 0 rgba(15, 23, 42, 0.08),
    0 1px 2px rgba(15, 23, 42, 0.05),
    0 2px 6px rgba(15, 23, 42, 0.04);
  --kb-key-shadow-pressed:
    inset 0 1px 2px rgba(15, 23, 42, 0.12),
    0 0 0 2px var(--accent-soft);

  display: flex;
  flex-direction: column;
  gap: var(--kb-gap);
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(
    180deg,
    var(--surface-alt) 0%,
    var(--bg-soft) 100%
  );
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.6),
    var(--shadow-sm);
  overflow-x: auto;
  scrollbar-width: thin;
}

:root[data-theme="dark"] .keyboard-map {
  --kb-key-shadow:
    inset 0 -2px 0 rgba(0, 0, 0, 0.5),
    0 1px 2px rgba(0, 0, 0, 0.5),
    0 2px 6px rgba(0, 0, 0, 0.3);
  --kb-key-shadow-pressed:
    inset 0 1px 2px rgba(0, 0, 0, 0.6),
    0 0 0 2px var(--accent-soft);
}

.keyboard-map::-webkit-scrollbar {
  height: 6px;
}

.keyboard-map::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}

.kb-row {
  display: flex;
  gap: var(--kb-gap);
  min-width: max-content;
  justify-content: center;
}

.key {
  --w: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: calc(var(--kb-unit) * var(--w) + var(--kb-gap) * (var(--w) - 1));
  height: var(--kb-unit);
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink-soft);
  cursor: default;
  user-select: none;
  box-shadow: var(--kb-key-shadow);
  transition:
    transform 90ms ease,
    box-shadow 120ms ease,
    border-color 120ms ease,
    background 120ms ease;
}

.key--char,
.key--space {
  cursor: pointer;
}

.key--char:hover,
.key--space:hover,
.key--mod:hover {
  border-color: var(--accent);
  background: linear-gradient(
    180deg,
    var(--surface) 0%,
    var(--accent-soft) 200%
  );
}

.key--mod[data-mod] {
  cursor: pointer;
}

.key--char:active,
.key--space:active,
.key--mod:active,
.key.is-pressed {
  transform: translateY(2px);
  box-shadow: var(--kb-key-shadow-pressed);
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-strong);
}

.key.is-pressed .key-mod-label {
  color: var(--accent-strong);
}

.key--char.is-home::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  opacity: 0.55;
}

.key-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 6px;
  line-height: 1;
}

.key-row--top {
  margin-bottom: 4px;
}

.key-row--top .key-latin,
.key-row--top .key-arabic {
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 600;
  opacity: 0.85;
}

.key-row--top .key-arabic {
  color: var(--accent);
  font-size: 0.85rem;
}

.key-row--bottom .key-latin {
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

.key-row--bottom .key-arabic {
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 700;
}

.key--char:hover .key-row--bottom .key-latin,
.key--char:hover .key-row--bottom .key-arabic {
  color: var(--accent-strong);
}

/* Simple key (number / symbol row) — single Latin pair like physical keyboard */
.key--simple {
  align-items: flex-start;
  justify-content: space-between;
  padding: 6px 8px;
}

.key--simple .key-simple-shift {
  display: block;
  width: 100%;
  text-align: left;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  line-height: 1;
}

.key--simple .key-simple-base {
  display: block;
  width: 100%;
  text-align: left;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1;
  margin-top: auto;
}

.key--simple:hover .key-simple-shift,
.key--simple:hover .key-simple-base {
  color: var(--accent-strong);
}

.key--simple.is-pressed .key-simple-shift,
.key--simple.is-pressed .key-simple-base {
  color: var(--accent-strong);
}

.key--mod {
  background: linear-gradient(
    180deg,
    var(--surface-alt) 0%,
    var(--bg-soft) 100%
  );
  color: var(--muted);
  font-family: var(--font-display);
}

.key-mod-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: capitalize;
}

.key--space {
  background: var(--surface);
}

.key--space .key-mod-label {
  font-size: 0.7rem;
  color: var(--muted);
}

@media (max-width: 720px) {
  .keyboard-map {
    --kb-unit: 44px;
    --kb-gap: 5px;
    padding: 12px;
  }
  .key-row--top .key-latin,
  .key-row--top .key-arabic {
    font-size: 0.58rem;
  }
  .key-row--bottom .key-latin {
    font-size: 0.7rem;
  }
  .key-row--bottom .key-arabic {
    font-size: 0.9rem;
  }
  .key-mod-label {
    font-size: 0.6rem;
  }
}

/* ========== Status Bar ========== */
.status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  min-height: 52px;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--muted);
  font-size: 0.84rem;
}

.status-info {
  font-weight: 600;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.status-hint {
  color: var(--muted);
  font-size: 0.8rem;
}

/* ========== Toast ========== */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translate(-50%, 24px);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: 14px;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  z-index: 100;
  transition:
    opacity var(--transition-base),
    transform var(--transition-spring);
}

:root[data-theme="dark"] .toast {
  background: var(--surface-alt);
  color: var(--ink);
  border: 1px solid var(--border-strong);
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

.toast::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.25);
}

.toast.toast--error::before {
  background: var(--rose);
  box-shadow: 0 0 0 4px rgba(244, 63, 94, 0.25);
}

/* ========== Responsive ========== */
@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 22px;
    padding: 22px;
  }
}

@media (max-width: 920px) {
  .app-shell {
    grid-template-columns: 1fr;
    padding: 18px;
    gap: 18px;
  }

  .sidebar {
    position: static;
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    padding: 14px;
    gap: 14px;
  }

  .brand {
    flex: 1 1 auto;
    padding: 0;
    border-bottom: 0;
  }

  .nav {
    flex: 1 1 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .nav-label {
    display: none;
  }

  .nav-item {
    flex: 1 1 calc(50% - 4px);
    min-width: 200px;
  }

  .sidebar-footer {
    flex: 1 1 100%;
    flex-direction: row;
    align-items: center;
    border-top: 0;
    padding-top: 0;
  }

  .sidebar-tip {
    flex: 1;
  }

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

  .panels::before {
    display: none;
  }

  .panel {
    min-height: 320px;
    border-bottom: 1px solid var(--border);
  }

  .panel:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 14px;
  }

  .view-header {
    margin-bottom: 16px;
  }

  .toolbar {
    padding: 14px;
    flex-direction: column;
    align-items: stretch;
  }

  .actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  }

  .actions .btn {
    justify-content: center;
  }

  .mode-pill {
    justify-content: center;
  }

  textarea {
    min-height: 240px;
    padding: 18px 18px;
  }

  .arabic-input {
    min-height: 200px;
    font-size: 1.25rem;
  }

  .nav-item {
    min-width: 100%;
  }
}