/* ============================================================
   KeyZenith — Virtual Keyboard Styles
   ============================================================ */

/* ── Finger colour palette ─────────────────────────────────── */
:root {
  --f-lp:  #f97316;   /* Left  Pinky  — orange        */
  --f-lr:  #3b82f6;   /* Left  Ring   — blue           */
  --f-lm:  #22c55e;   /* Left  Middle — green          */
  --f-li:  #eab308;   /* Left  Index  — yellow         */
  --f-lt:  #94a3b8;   /* Left  Thumb  — slate          */
  --f-rt:  #94a3b8;   /* Right Thumb  — slate          */
  --f-ri:  #eab308;   /* Right Index  — yellow         */
  --f-rm:  #22c55e;   /* Right Middle — green          */
  --f-rr:  #3b82f6;   /* Right Ring   — blue           */
  --f-rp:  #f97316;   /* Right Pinky  — orange         */
}

/* ── Wrapper ────────────────────────────────────────────────── */
.vkb-wrap {
  margin: 22px 0 6px;
  user-select: none;
}

/* ── Hint bar ───────────────────────────────────────────────── */
.vkb-hint {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(56,189,248,0.07);
  border: 1px solid rgba(56,189,248,0.18);
  border-radius: 8px;
  padding: 8px 16px;
  margin-bottom: 14px;
  font-size: 0.83rem;
  min-height: 38px;
}
.vkb-hint-finger {
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
  white-space: nowrap;
}
.vkb-hint-key {
  color: var(--text-secondary);
}

/* ── Keyboard board ─────────────────────────────────────────── */
.vkb-board {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 12px 10px;
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  overflow-x: auto;
  max-width: 100%;
}
body.light .vkb-board {
  background: #e8eeff;
}

.vkb-row {
  display: flex;
  gap: 5px;
  align-items: stretch;
}

/* ── Individual key ─────────────────────────────────────────── */
.vkb-key {
  position: relative;
  height: 48px;
  border-radius: 7px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  cursor: default;
  transition: transform 0.08s ease, box-shadow 0.15s ease, border-color 0.15s;
  border: 1.5px solid rgba(255,255,255,0.06);
  box-shadow: 0 3px 0 rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.05);
}
body.light .vkb-key {
  border-color: rgba(0,0,0,0.12);
  box-shadow: 0 3px 0 rgba(0,0,0,0.18), inset 0 1px 0 rgba(255,255,255,0.7);
}

/* Main label */
.vkb-main {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(255,255,255,0.75);
  pointer-events: none;
}
body.light .vkb-main { color: rgba(0,0,0,0.65); }

/* Shift label (top-left corner) */
.vkb-shift {
  position: absolute;
  top: 5px;
  left: 6px;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: rgba(255,255,255,0.35);
  pointer-events: none;
  line-height: 1;
}
body.light .vkb-shift { color: rgba(0,0,0,0.3); }

/* Home-row dot */
.vkb-home::after {
  content: '';
  position: absolute;
  bottom: 5px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
}

/* ── Finger colour zones ────────────────────────────────────── */
.f-lp  { background: color-mix(in srgb, var(--f-lp)  18%, var(--bg-card)); }
.f-lr  { background: color-mix(in srgb, var(--f-lr)  18%, var(--bg-card)); }
.f-lm  { background: color-mix(in srgb, var(--f-lm)  18%, var(--bg-card)); }
.f-li  { background: color-mix(in srgb, var(--f-li)  18%, var(--bg-card)); }
.f-lt  { background: color-mix(in srgb, var(--f-lt)  18%, var(--bg-card)); }
.f-rt  { background: color-mix(in srgb, var(--f-rt)  18%, var(--bg-card)); }
.f-ri  { background: color-mix(in srgb, var(--f-ri)  18%, var(--bg-card)); }
.f-rm  { background: color-mix(in srgb, var(--f-rm)  18%, var(--bg-card)); }
.f-rr  { background: color-mix(in srgb, var(--f-rr)  18%, var(--bg-card)); }
.f-rp  { background: color-mix(in srgb, var(--f-rp)  18%, var(--bg-card)); }

/* Light mode equivalents */
body.light .f-lp { background: color-mix(in srgb, var(--f-lp)  22%, #fff); }
body.light .f-lr { background: color-mix(in srgb, var(--f-lr)  22%, #fff); }
body.light .f-lm { background: color-mix(in srgb, var(--f-lm)  22%, #fff); }
body.light .f-li { background: color-mix(in srgb, var(--f-li)  22%, #fff); }
body.light .f-lt { background: color-mix(in srgb, var(--f-lt)  22%, #fff); }
body.light .f-rt { background: color-mix(in srgb, var(--f-rt)  22%, #fff); }
body.light .f-ri { background: color-mix(in srgb, var(--f-ri)  22%, #fff); }
body.light .f-rm { background: color-mix(in srgb, var(--f-rm)  22%, #fff); }
body.light .f-rr { background: color-mix(in srgb, var(--f-rr)  22%, #fff); }
body.light .f-rp { background: color-mix(in srgb, var(--f-rp)  22%, #fff); }

/* ── State classes ──────────────────────────────────────────── */

/* Next key to press — pulsing glow */
.vkb-key.vkb-next {
  border-color: var(--accent) !important;
  box-shadow:
    0 0 0 2px rgba(56,189,248,0.35),
    0 0 14px rgba(56,189,248,0.5),
    0 3px 0 rgba(0,0,0,0.4);
  animation: kb-pulse 0.9s ease-in-out infinite;
  z-index: 2;
}
@keyframes kb-pulse {
  0%,100% { box-shadow: 0 0 0 2px rgba(56,189,248,.3), 0 0 10px rgba(56,189,248,.4), 0 3px 0 rgba(0,0,0,.4); }
  50%      { box-shadow: 0 0 0 3px rgba(56,189,248,.6), 0 0 22px rgba(56,189,248,.7), 0 3px 0 rgba(0,0,0,.4); }
}

/* Shift needed indicator */
.vkb-key.vkb-shift-needed {
  border-color: var(--accent-2) !important;
  box-shadow: 0 0 10px rgba(129,140,248,0.4), 0 3px 0 rgba(0,0,0,.4);
  animation: kb-pulse-shift 0.9s ease-in-out infinite;
}
@keyframes kb-pulse-shift {
  0%,100% { box-shadow: 0 0 8px rgba(129,140,248,.35), 0 3px 0 rgba(0,0,0,.4); }
  50%      { box-shadow: 0 0 18px rgba(129,140,248,.65), 0 3px 0 rgba(0,0,0,.4); }
}

/* Pressed correctly — green flash */
.vkb-key.vkb-pressed-ok {
  transform: translateY(2px) scale(0.96);
  background: rgba(52,211,153,0.35) !important;
  border-color: var(--accent-green) !important;
  box-shadow: 0 1px 0 rgba(0,0,0,0.4), 0 0 12px rgba(52,211,153,0.5);
}

/* Pressed wrongly — red flash */
.vkb-key.vkb-pressed-err {
  transform: translateY(2px) scale(0.96);
  background: rgba(248,113,113,0.35) !important;
  border-color: var(--accent-red) !important;
  box-shadow: 0 1px 0 rgba(0,0,0,0.4), 0 0 12px rgba(248,113,113,0.5);
  animation: kb-shake 0.2s ease;
}
@keyframes kb-shake {
  0%,100% { translate: 0; }
  25%     { translate: -3px; }
  75%     { translate: 3px; }
}

/* ── Hands SVG ──────────────────────────────────────────────── */
.vkb-hands {
  display: flex;
  justify-content: center;
  gap: 80px;
  margin-top: 14px;
  padding: 10px 0 4px;
}
.vkb-hand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

/* Finger shapes */
.hf {
  transition: fill 0.15s ease, filter 0.15s ease;
  rx: 9;
}

/* Default finger colours (dim) */
.hf-lp  { fill: color-mix(in srgb, var(--f-lp) 35%, #1e293b); }
.hf-lr  { fill: color-mix(in srgb, var(--f-lr) 35%, #1e293b); }
.hf-lm  { fill: color-mix(in srgb, var(--f-lm) 35%, #1e293b); }
.hf-li  { fill: color-mix(in srgb, var(--f-li) 35%, #1e293b); }
.hf-lt  { fill: color-mix(in srgb, var(--f-lt) 30%, #1e293b); }
.hf-rt  { fill: color-mix(in srgb, var(--f-rt) 30%, #1e293b); }
.hf-ri  { fill: color-mix(in srgb, var(--f-ri) 35%, #1e293b); }
.hf-rm  { fill: color-mix(in srgb, var(--f-rm) 35%, #1e293b); }
.hf-rr  { fill: color-mix(in srgb, var(--f-rr) 35%, #1e293b); }
.hf-rp  { fill: color-mix(in srgb, var(--f-rp) 35%, #1e293b); }

/* Active finger — bright + glow */
.hf-lp.hf-active  { fill: var(--f-lp); filter: drop-shadow(0 0 6px var(--f-lp)); }
.hf-lr.hf-active  { fill: var(--f-lr); filter: drop-shadow(0 0 6px var(--f-lr)); }
.hf-lm.hf-active  { fill: var(--f-lm); filter: drop-shadow(0 0 6px var(--f-lm)); }
.hf-li.hf-active  { fill: var(--f-li); filter: drop-shadow(0 0 6px var(--f-li)); }
.hf-lt.hf-active  { fill: var(--f-lt); filter: drop-shadow(0 0 6px var(--f-lt)); }
.hf-rt.hf-active  { fill: var(--f-rt); filter: drop-shadow(0 0 6px var(--f-rt)); }
.hf-ri.hf-active  { fill: var(--f-ri); filter: drop-shadow(0 0 6px var(--f-ri)); }
.hf-rm.hf-active  { fill: var(--f-rm); filter: drop-shadow(0 0 6px var(--f-rm)); }
.hf-rr.hf-active  { fill: var(--f-rr); filter: drop-shadow(0 0 6px var(--f-rr)); }
.hf-rp.hf-active  { fill: var(--f-rp); filter: drop-shadow(0 0 6px var(--f-rp)); }

.hf-lbl {
  font-size: 8px;
  fill: rgba(255,255,255,0.3);
  text-anchor: middle;
  font-family: var(--font-mono);
  letter-spacing: 0;
}

/* ── Colour legend ──────────────────────────────────────────── */
.vkb-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 14px;
  padding: 10px 0 0;
  border-top: 1px solid var(--border);
}
.vkb-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.vkb-legend-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .vkb-board { transform-origin: left top; transform: scale(0.82); }
  .vkb-wrap  { overflow-x: hidden; }
  .vkb-hands { gap: 30px; }
}
@media (max-width: 600px) {
  .vkb-board { transform: scale(0.58); }
  .vkb-hands { display: none; }
  .vkb-hint  { font-size: 0.75rem; }
}