/*
Theme Name: Matrix Snake
Theme URI: https://petreje.com/
Author: Mário / AKANTHIT
Author URI: https://akanthit.com/
Description: Jednostránková WordPress téma s hrou Hadík v štýle Matrix. Celá obrazovka, ovládanie šípkami aj dotykové na mobiloch.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: matrix-snake
*/

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #000000;
  --green: #00ff41;
  --green-dim: #008f11;
  --green-glow: rgba(0, 255, 65, 0.6);
  --green-faint: rgba(0, 255, 65, 0.12);
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  font-family: "Courier New", Courier, monospace;
  color: var(--green);
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
  touch-action: none;
}

#ms-app {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
}

/* ── Top bar ─────────────────────────────── */
#ms-topbar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--green-dim);
  background: rgba(0, 0, 0, 0.85);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: clamp(13px, 2.4vw, 18px);
  z-index: 5;
  user-select: none;
}

#ms-topbar .ms-stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-shadow: 0 0 8px var(--green-glow);
}

#ms-topbar .ms-stat .ms-label {
  color: var(--green-dim);
  font-size: 0.7em;
}

#ms-topbar .ms-stat .ms-value {
  font-weight: bold;
  min-width: 2ch;
  text-align: right;
}

#ms-title {
  font-weight: bold;
  text-shadow: 0 0 12px var(--green-glow);
  animation: ms-flicker 4s infinite;
}

@keyframes ms-flicker {
  0%, 92%, 100% { opacity: 1; }
  93% { opacity: 0.4; }
  94% { opacity: 1; }
  96% { opacity: 0.6; }
  97% { opacity: 1; }
}

/* ── Play area ───────────────────────────── */
#ms-board-wrap {
  flex: 1 1 auto;
  position: relative;
  overflow: hidden;
}

#ms-canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--bg);
}

/* ── Overlay (start / game over) ─────────── */
#ms-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  text-align: center;
  background: rgba(0, 0, 0, 0.78);
  z-index: 10;
  padding: 24px;
}

#ms-overlay.ms-hidden { display: none; }

#ms-overlay h1 {
  font-size: clamp(28px, 8vw, 64px);
  letter-spacing: 6px;
  text-transform: uppercase;
  text-shadow: 0 0 20px var(--green-glow);
}

#ms-overlay p {
  font-size: clamp(13px, 2.6vw, 18px);
  color: var(--green-dim);
  letter-spacing: 2px;
  max-width: 30ch;
  line-height: 1.7;
}

#ms-overlay .ms-final {
  font-size: clamp(16px, 3vw, 22px);
  color: var(--green);
  text-shadow: 0 0 10px var(--green-glow);
}

#ms-start-btn {
  margin-top: 8px;
  padding: 14px 34px;
  background: transparent;
  border: 1px solid var(--green);
  color: var(--green);
  font-family: inherit;
  font-size: clamp(14px, 2.6vw, 18px);
  letter-spacing: 3px;
  text-transform: uppercase;
  cursor: pointer;
  text-shadow: 0 0 8px var(--green-glow);
  box-shadow: 0 0 12px var(--green-faint), inset 0 0 12px var(--green-faint);
  transition: background 0.2s, box-shadow 0.2s;
}

#ms-start-btn:hover,
#ms-start-btn:focus-visible {
  background: var(--green);
  color: #000;
  box-shadow: 0 0 24px var(--green-glow);
  outline: none;
}

/* ── Mobile D-pad ────────────────────────── */
#ms-dpad {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  display: none;
  grid-template-columns: repeat(3, 60px);
  grid-template-rows: repeat(3, 60px);
  gap: 8px;
  z-index: 8;
  user-select: none;
}

#ms-dpad button {
  background: rgba(0, 255, 65, 0.06);
  border: 1px solid var(--green-dim);
  color: var(--green);
  font-size: 26px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-shadow: 0 0 8px var(--green-glow);
  touch-action: manipulation;
}

#ms-dpad button:active {
  background: var(--green);
  color: #000;
}

#ms-dpad .ms-up    { grid-column: 2; grid-row: 1; }
#ms-dpad .ms-left  { grid-column: 1; grid-row: 2; }
#ms-dpad .ms-right { grid-column: 3; grid-row: 2; }
#ms-dpad .ms-down  { grid-column: 2; grid-row: 3; }
#ms-dpad .ms-empty { visibility: hidden; }

/* touch devices */
@media (hover: none) and (pointer: coarse) {
  #ms-dpad { display: grid; }
}

body.ms-touch #ms-dpad { display: grid; }