:root {
  --blue: #0b5fff;
  --blue-dark: #063d9e;
  --red: #ff1744;
  --red-dark: #c4001d;
  --yellow: #ffe500;
  --yellow-dark: #d4bd00;
  --bg: #0a0e1a;
  --panel: #131a2e;
  --panel-light: #1c2540;
  --text: #f2f4ff;
  --text-dim: #a6adc9;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #101a35, var(--bg) 60%);
  color: var(--text);
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.header {
  text-align: center;
  margin-bottom: 40px;
}

.header h1 {
  font-size: 2.6rem;
  margin: 0 0 8px;
  color: var(--yellow);
  text-shadow: 0 0 18px rgba(255, 229, 0, 0.4);
  letter-spacing: 0.5px;
}

.subtitle {
  color: var(--text-dim);
  font-size: 1.05rem;
  margin: 0;
}

.task-input-section {
  margin-bottom: 32px;
}

.task-label {
  display: block;
  font-weight: 700;
  color: var(--yellow);
  margin-bottom: 10px;
  font-size: 1rem;
}

.task-label-hint {
  font-weight: 400;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.task-input {
  width: 100%;
  background: var(--panel);
  border: 2px solid var(--blue);
  border-radius: 10px;
  padding: 14px 18px;
  font-size: 1rem;
  color: var(--text);
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.task-input::placeholder {
  color: var(--text-dim);
}

.task-input:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(255, 23, 68, 0.3);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
  margin-bottom: 36px;
}

.card {
  background: linear-gradient(160deg, var(--panel), var(--panel-light));
  border: 2px solid var(--blue);
  border-radius: 16px;
  padding: 24px 20px;
  text-align: left;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  font-family: inherit;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--red);
  box-shadow: 0 10px 30px rgba(255, 23, 68, 0.35), 0 0 0 1px var(--red) inset;
}

.card.active {
  border-color: var(--yellow);
  box-shadow: 0 0 0 2px var(--yellow), 0 10px 30px rgba(255, 229, 0, 0.35);
}

.card-icon {
  font-size: 1.8rem;
  display: block;
  margin-bottom: 10px;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
  color: var(--blue);
}

.card:hover h2 {
  color: var(--red);
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.4;
}

/* Premium card */
.card-premium {
  border-color: var(--yellow);
  cursor: default;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 16px;
}

.premium-blur {
  filter: blur(3px);
  opacity: 0.55;
  user-select: none;
  pointer-events: none;
}

.premium-blur h2 {
  color: var(--yellow);
}

.cta-btn {
  background: linear-gradient(120deg, var(--yellow), #fff34d);
  color: #1a1400;
  border: none;
  border-radius: 999px;
  padding: 14px 26px;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 0 0 3px var(--yellow-dark), 0 8px 24px rgba(255, 229, 0, 0.45);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  letter-spacing: 0.3px;
}

.cta-btn:hover {
  transform: scale(1.06);
  box-shadow: 0 0 0 3px var(--yellow-dark), 0 12px 32px rgba(255, 229, 0, 0.65);
}

.cta-btn:active {
  transform: scale(0.97);
}

/* Display area */
.display-area {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

#display-title {
  margin: 0 0 16px;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 600;
  opacity: 0.85;
}

.prompt-wrapper {
  position: relative;
}

.prompt-output {
  width: 100%;
  background: #060a14;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 20px 52px 20px 20px;
  color: var(--text);
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.92rem;
  line-height: 1.65;
  white-space: pre-wrap;
  word-wrap: break-word;
  min-height: 160px;
  resize: vertical;
  margin: 0;
  transition: border-color 0.15s ease;
}

.prompt-output::placeholder {
  color: var(--text-dim);
}

.prompt-output:focus {
  outline: none;
  border-color: var(--blue);
}

.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 30px;
  height: 30px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  color: var(--text-dim);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.copy-btn:hover:not(:disabled) {
  background: rgba(11, 95, 255, 0.18);
  border-color: var(--blue);
  color: var(--text);
}

.copy-btn:active:not(:disabled) {
  transform: scale(0.94);
}

.copy-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.copy-btn.copied {
  border-color: #2ecc71;
  color: #2ecc71;
  background: rgba(46, 204, 113, 0.12);
}

.copy-btn .icon {
  width: 15px;
  height: 15px;
}

.copy-feedback {
  display: inline-block;
  margin-top: 10px;
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 500;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.copy-feedback.show {
  opacity: 1;
}

@media (max-width: 600px) {
  .header h1 {
    font-size: 2rem;
  }
}