/* ============================
   CROSSY STREETS DELUXE — CSS
   ============================ */

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

:root {
  --clr-bg: #0d1b2a;
  --clr-accent: #f9c74f;
  --clr-accent2: #f4845f;
  --clr-green: #2dc653;
  --clr-blue: #4cc9f0;
  --clr-purple: #7209b7;
  --clr-red: #e63946;
  --font-main: 'Segoe UI', 'Arial Rounded MT Bold', Arial, sans-serif;
  --radius: 12px;
  --shadow: 0 8px 32px rgba(0,0,0,0.6);
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--clr-bg);
  font-family: var(--font-main);
  color: #fff;
  touch-action: none;
}

#app {
  width: 100%;
  height: 100%;
  position: relative;
}

/* ========== SCREENS ========== */
.screen {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.screen.active {
  display: flex;
}

/* ========== START SCREEN ========== */
#screen-start {
  background: radial-gradient(ellipse at 50% 30%, #1a3a5c 0%, #0d1b2a 70%);
  overflow: hidden;
}

#bg-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.start-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.logo-wrap {
  text-align: center;
  filter: drop-shadow(0 4px 24px rgba(249,199,79,0.5));
}

.logo-main {
  font-size: clamp(2rem, 8vw, 5rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  color: #fff;
  text-shadow:
    3px 3px 0 var(--clr-accent),
    6px 6px 0 rgba(249,199,79,0.3),
    0 0 40px rgba(249,199,79,0.4);
  line-height: 1;
}

.logo-sub {
  font-size: clamp(1rem, 3vw, 1.8rem);
  font-weight: 700;
  letter-spacing: 0.5em;
  color: var(--clr-accent);
  text-shadow: 0 0 20px var(--clr-accent);
  margin-top: 4px;
}

.high-score-display {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-accent);
  letter-spacing: 0.15em;
  background: rgba(249,199,79,0.1);
  border: 2px solid rgba(249,199,79,0.3);
  padding: 6px 20px;
  border-radius: 999px;
}

/* ========== BUTTONS ========== */
.btn-primary {
  background: linear-gradient(135deg, #f9c74f, #f4845f);
  color: #1a1a1a;
  font-size: clamp(1rem, 3vw, 1.4rem);
  font-weight: 900;
  letter-spacing: 0.1em;
  border: none;
  border-radius: var(--radius);
  padding: 16px 52px;
  cursor: pointer;
  box-shadow: 0 6px 0 #b5611e, var(--shadow);
  transition: transform 0.08s, box-shadow 0.08s;
  text-transform: uppercase;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 0 #b5611e, var(--shadow);
}

.btn-primary:active {
  transform: translateY(3px);
  box-shadow: 0 2px 0 #b5611e;
}

.btn-secondary {
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: clamp(0.85rem, 2.5vw, 1.1rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  border: 2px solid rgba(255,255,255,0.25);
  border-radius: var(--radius);
  padding: 12px 36px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.08s;
  text-transform: uppercase;
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-1px);
}

.btn-icon {
  background: rgba(255,255,255,0.08);
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  width: 52px;
  height: 52px;
  font-size: 1.4rem;
  cursor: pointer;
  transition: background 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  background: rgba(255,255,255,0.2);
}

.btn-back {
  background: rgba(255,255,255,0.08);
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 8px 18px;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-back:hover {
  background: rgba(255,255,255,0.18);
}

/* ========== CHARACTER SELECT ========== */
#screen-chars {
  background: linear-gradient(180deg, #0d1b2a 0%, #1a2a3a 100%);
  padding: 20px;
  overflow-y: auto;
  justify-content: flex-start;
  align-items: stretch;
}

.screen-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid rgba(255,255,255,0.1);
  margin-bottom: 20px;
  flex-shrink: 0;
}

.screen-header h2 {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--clr-accent);
}

#char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 14px;
  overflow-y: auto;
}

.char-card {
  background: rgba(255,255,255,0.05);
  border: 2px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 16px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
  position: relative;
}

.char-card:hover:not(.locked) {
  border-color: var(--clr-accent);
  background: rgba(249,199,79,0.08);
  transform: translateY(-3px);
}

.char-card.selected {
  border-color: var(--clr-green);
  background: rgba(45,198,83,0.12);
  box-shadow: 0 0 20px rgba(45,198,83,0.3);
}

.char-card.locked {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(0.5);
}

.char-canvas {
  width: 72px;
  height: 72px;
  border-radius: 8px;
}

.char-name {
  font-size: 0.75rem;
  font-weight: 700;
  text-align: center;
  color: #fff;
  letter-spacing: 0.05em;
}

.char-unlock-req {
  font-size: 0.65rem;
  color: var(--clr-accent);
  text-align: center;
}

.char-lock-icon {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.85rem;
}

/* ========== GAME SCREEN ========== */
#screen-game {
  background: #000;
}

#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* HUD */
#hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  pointer-events: none;
  z-index: 10;
}

#hud-left, #hud-right {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

#score-display, #best-display {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

#hud-right {
  align-items: flex-end;
}

.hud-label {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.5);
}

#score-val {
  font-size: clamp(1.6rem, 5vw, 2.8rem);
  font-weight: 900;
  line-height: 1;
  color: #fff;
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

#best-val {
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1;
  color: var(--clr-accent);
}

#streak-display {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(249,199,79,0.15);
  border: 2px solid rgba(249,199,79,0.4);
  border-radius: 999px;
  padding: 4px 12px;
  animation: streak-pulse 1s ease-in-out infinite alternate;
}

#streak-display.hidden { display: none; }

.streak-flame { font-size: 1rem; }

#streak-val {
  font-size: 1rem;
  font-weight: 900;
  color: var(--clr-accent);
}

@keyframes streak-pulse {
  from { box-shadow: 0 0 8px rgba(249,199,79,0.3); }
  to   { box-shadow: 0 0 20px rgba(249,199,79,0.7); }
}

/* Near miss popup */
#near-miss-popup {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translateX(-50%);
  font-size: clamp(1rem, 4vw, 1.6rem);
  font-weight: 900;
  color: #fff;
  text-shadow: 0 0 20px #f9c74f, 2px 2px 0 rgba(0,0,0,0.5);
  letter-spacing: 0.05em;
  pointer-events: none;
  z-index: 20;
  animation: popup-rise 1.2s ease-out forwards;
}

#near-miss-popup.hidden { display: none; }

@keyframes popup-rise {
  0%   { opacity: 1; transform: translateX(-50%) translateY(0) scale(1.3); }
  70%  { opacity: 1; transform: translateX(-50%) translateY(-40px) scale(1); }
  100% { opacity: 0; transform: translateX(-50%) translateY(-60px) scale(0.9); }
}

/* Unlock popup */
#unlock-popup {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(135deg, #7209b7, #4cc9f0);
  border: 3px solid #fff;
  border-radius: 16px;
  padding: 24px 40px;
  text-align: center;
  z-index: 30;
  pointer-events: none;
  animation: unlock-bounce 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

#unlock-popup.hidden { display: none; }

.unlock-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.7);
  margin-bottom: 4px;
}

#unlock-char-name {
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  text-shadow: 0 2px 10px rgba(0,0,0,0.4);
}

@keyframes unlock-bounce {
  0%   { transform: translate(-50%, -50%) scale(0); }
  100% { transform: translate(-50%, -50%) scale(1); }
}

/* Mobile D-pad */
#dpad {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 20;
  opacity: 0.8;
}

.dpad-row {
  display: flex;
  gap: 4px;
  align-items: center;
}

.dpad-btn {
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,0.15);
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.08s;
}

.dpad-btn:active {
  background: rgba(255,255,255,0.35);
}

.dpad-center {
  background: rgba(255,255,255,0.1);
}

@media (pointer: coarse) {
  #dpad { display: flex; }
}

/* ========== DEATH SCREEN ========== */
#screen-death {
  background: radial-gradient(ellipse at 50% 40%, #2a0d0d 0%, #0d1b2a 70%);
}

.death-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 24px;
  max-width: 420px;
  width: 100%;
}

.death-emoji {
  font-size: 4rem;
  animation: death-shake 0.5s ease-out;
}

@keyframes death-shake {
  0%,100% { transform: rotate(0deg); }
  20%      { transform: rotate(-10deg) scale(1.2); }
  40%      { transform: rotate(10deg) scale(1.1); }
  60%      { transform: rotate(-6deg); }
  80%      { transform: rotate(6deg); }
}

.death-title {
  font-size: clamp(1.6rem, 6vw, 2.4rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--clr-red);
  text-shadow: 0 0 30px rgba(230,57,70,0.5);
}

.death-msg {
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  text-align: center;
  font-style: italic;
  max-width: 300px;
}

.death-score {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.death-score span:last-child {
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
}

#leaderboard-section {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 16px;
}

#leaderboard-section h3 {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--clr-accent);
  margin-bottom: 10px;
  text-align: center;
}

#leaderboard-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

#leaderboard-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: rgba(255,255,255,0.8);
  padding: 4px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

#leaderboard-list li:last-child { border-bottom: none; }

#leaderboard-list li.top-entry {
  color: var(--clr-accent);
}

.death-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ========== MISC UTILS ========== */
.hidden { display: none !important; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: rgba(255,255,255,0.05); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 3px; }

/* ========== RESPONSIVE ========== */
@media (max-width: 480px) {
  #char-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }
  .death-buttons {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary, .btn-secondary {
    width: 100%;
    text-align: center;
  }
}