:root {
  --bg: #0f1115;
  --panel: #161a22;
  --text: #e6e6e6;
  --muted: #9aa0aa;
  --danger: #ff4d4f;
  --accent: #ff7a18;
}

* {
  box-sizing: border-box;
  font-family: system-ui, sans-serif;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #1b1f2a, var(--bg));
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* 🔴 pulse */
body.pulse {
  animation: pulseRed 1s ease-in-out 2;
}

@keyframes pulseRed {
  0% { background-color: var(--bg); }
  50% { background-color: #3a0d10; }
  100% { background-color: var(--bg); }
}

.container {
  background: var(--panel);
  border-radius: 18px;
  padding: 40px;
  width: 100%;
  max-width: 760px;
  box-shadow: 0 25px 70px rgba(0,0,0,0.6);
}

/* animations */
.container.shake { animation: shake 0.4s; }
.container.glitch { animation: glitch 0.6s; }

@keyframes shake {
  0% { transform: translateX(0); }
  50% { transform: translateX(-6px); }
  100% { transform: translateX(0); }
}

@keyframes glitch {
  0% { transform: translate(0,0); }
  50% { transform: translate(-3px,2px) skewX(2deg); }
  100% { transform: translate(0,0); }
}

/* achievement */
.achievement {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--danger), var(--accent));
  padding: 16px 28px;
  border-radius: 14px;
  color: #fff;
  z-index: 1000;
}

.hidden { display: none; }

.inputs {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

input {
  background: #0f131b;
  border: 1px solid #2a3040;
  border-radius: 10px;
  padding: 14px;
  color: var(--text);
}

input.error {
  border-color: var(--danger);
  box-shadow: 0 0 0 2px rgba(255,77,79,0.3);
}

#title { grid-column: 1 / -1; }

button {
  margin-top: 24px;
  background: linear-gradient(135deg, var(--danger), var(--accent));
  border: none;
  padding: 14px 26px;
  border-radius: 12px;
  color: #fff;
  cursor: pointer;
}

.cost {
  font-size: 3.2rem;
  color: var(--danger);
}

.bar {
  height: 14px;
  background: #0f131b;
  border-radius: 8px;
  overflow: hidden;
}

#bar-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--danger), var(--accent));
  transition: width 0.6s ease;
}

/* 🏆 Achievements */
.achievements-section {
  margin-top: 32px;
  padding: 24px;
  background: rgba(255, 122, 24, 0.1);
  border: 2px solid var(--accent);
  border-radius: 12px;
}

.achievements-section h3 {
  margin: 0 0 16px 0;
  color: var(--accent);
  font-size: 1.4rem;
}

#achievements-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.achievement-icon-wrapper {
  position: relative;
  display: inline-block;
}

.achievement-icon-only {
  font-size: 3rem;
  cursor: pointer;
  transition: transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  background: rgba(255, 122, 24, 0.15);
  border-radius: 12px;
  border: 2px solid rgba(255, 122, 24, 0.3);
}

.achievement-icon-only:hover {
  transform: scale(1.1);
  background: rgba(255, 122, 24, 0.25);
}

.achievement-popup {
  position: absolute;
  bottom: 85px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 2px solid var(--accent);
  border-radius: 12px;
  padding: 16px;
  min-width: 280px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  pointer-events: none;
  z-index: 1000;
}

.achievement-icon-wrapper:hover .achievement-popup {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-5px);
}

/* Arrow pointer */
.achievement-popup::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 10px solid transparent;
  border-top-color: var(--accent);
}

.popup-icon {
  font-size: 3rem;
  text-align: center;
  margin-bottom: 12px;
}

.popup-title {
  font-weight: bold;
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 8px;
  text-align: center;
}

.popup-desc {
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 12px;
  text-align: center;
}

.popup-time {
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
  font-style: italic;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 122, 24, 0.3);
}

.no-achievements {
  text-align: center;
  color: var(--muted);
  font-style: italic;
  padding: 16px;
}

.image-result {
  margin-top: 32px;
  text-align: center;
}

.button-group {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 16px;
}

.button-group button {
  margin: 0;
}

#result-canvas {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 16px;
  cursor: pointer;
}