/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
  color: #e8e8f0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem 1rem 0.5rem;
  overflow-x: hidden;
}

/* ── Header ── */
.header {
  text-align: center;
  margin-bottom: 1.5rem;
}
.header h1 {
  font-size: 2.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, #a78bfa, #f472b6, #fb923c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}
.header p {
  margin-top: 0.4rem;
  color: #9994b8;
  font-size: 0.95rem;
}

/* ── Layout ── */
.app {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 1100px;
  width: 100%;
}

/* ── Glass Card ── */
.card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: 1.25rem;
  padding: 1.75rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  transition: box-shadow 0.3s;
}
.card:hover { box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45); }

/* ── Controls Panel ── */
.controls {
  width: 360px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.controls label {
  font-weight: 600;
  font-size: 0.9rem;
  color: #c4c0d8;
  flex-shrink: 0;
}
.controls textarea {
  width: 100%;
  height: 200px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0.75rem;
  color: #e8e8f0;
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  resize: vertical;
  outline: none;
  transition: border-color 0.25s;
  line-height: 1.6;
}
.controls textarea:focus {
  border-color: rgba(167, 139, 250, 0.5);
}
.controls textarea::placeholder { color: #6b6589; }

.counter {
  font-size: 0.82rem;
  color: #9994b8;
  text-align: right;
}
.counter.invalid { color: #f87171; }

.validation-msg {
  font-size: 0.82rem;
  color: #f87171;
  min-height: 1.2em;
  transition: opacity 0.25s;
  flex-shrink: 0;
}

/* ── Buttons ── */
.btn-row {
  display: flex;
  gap: 0.6rem;
  flex-shrink: 0;
}
.btn-row .btn {
  flex: 1;
}
.btn {
  padding: 0.7rem 1rem;
  border: none;
  border-radius: 0.7rem;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, opacity 0.2s;
  letter-spacing: 0.01em;
}
.btn:active { transform: scale(0.97); }
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.btn-spin {
  flex-shrink: 0;
  background: linear-gradient(135deg, #a78bfa, #7c3aed);
  color: #fff;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.35);
}
.btn-spin:hover:not(:disabled) {
  box-shadow: 0 6px 24px rgba(124, 58, 237, 0.5);
}

.btn-shuffle {
  background: rgba(255, 255, 255, 0.08);
  color: #c4c0d8;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.btn-shuffle:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.13);
}

.btn-reset {
  background: rgba(248, 113, 113, 0.12);
  color: #f87171;
  border: 1px solid rgba(248, 113, 113, 0.2);
}
.btn-reset:hover:not(:disabled) {
  background: rgba(248, 113, 113, 0.2);
}

/* ── Wheel Area ── */
.wheel-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.wheel-container {
  position: relative;
  width: 520px;
  height: 520px;
}

.wheel-container canvas {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  filter: drop-shadow(0 0 24px rgba(124, 58, 237, 0.25));
}

/* Pointer */
.pointer {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 16px solid transparent;
  border-right: 16px solid transparent;
  border-top: 30px solid #f472b6;
  filter: drop-shadow(0 2px 6px rgba(244, 114, 182, 0.6));
  z-index: 10;
  transition: filter 0.3s;
}

/* ── Result ── */
.result {
  text-align: center;
  min-height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.result-text {
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, #a78bfa, #f472b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
  transform: translateY(8px) scale(0.95);
  transition: opacity 0.4s, transform 0.4s;
}
.result-text.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ── Confetti Canvas ── */
#confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 100;
}

/* ── Footer ── */
.footer {
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.5rem 1rem;
  text-align: center;
  font-size: 0.82rem;
  color: #9994b8;
  letter-spacing: 0.01em;
}
.footer a {
  color: #b0aad0;
  text-decoration: none;
}
.footer a:hover {
  color: #d4cfff;
  text-decoration: underline;
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .app { flex-direction: column; align-items: center; }
  .controls { width: 100%; max-width: 420px; height: auto; margin-top: 0; }
  .controls textarea { min-height: 150px; flex: none; }
  .wheel-container { width: min(420px, 90vw); height: min(420px, 90vw); }
}
@media (max-width: 740px) {
  body { padding: 1.5rem 1rem 0; }
  .header h1 { font-size: 1.8rem; }
  .btn { padding: 0.85rem 1rem; font-size: 0.92rem; }
  .wheel-container { width: min(340px, 90vw); height: min(340px, 90vw); }
}
@media (max-width: 400px) {
  body { padding: 1.25rem 0.75rem 0; }
  .header h1 { font-size: 1.5rem; }
  .header p { font-size: 0.85rem; }
  .wheel-container { width: min(300px, 92vw); height: min(300px, 92vw); }
  .controls { padding: 1.25rem; }
  .controls textarea { min-height: 130px; font-size: 0.9rem; }
  .result-text { font-size: 1.2rem; }
}