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

body {
  font-family: 'Poppins', sans-serif;
  min-height: 100vh;
  background: #0f0c29;
  background: linear-gradient(135deg, #0f0c29 0%, #1a1a2e 40%, #16213e 100%);
  color: #f0f0f0;
  display: flex;
  justify-content: center;
  padding: 2rem 1rem 4rem;
  overflow-x: hidden;
}

/* animated background glow */
.bg-glow {
  position: fixed;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(114, 63, 255, .25) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  animation: pulse 6s ease-in-out infinite alternate;
}
@keyframes pulse {
  0%   { opacity: .6; transform: translateX(-50%) scale(1); }
  100% { opacity: 1;  transform: translateX(-50%) scale(1.15); }
}

/* ── Layout ───────────────────────────────────── */
.container {
  position: relative;
  z-index: 1;
  max-width: 520px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ── Title ────────────────────────────────────── */
.title {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: .25rem;
}
.title span {
  background: linear-gradient(135deg, #f7971e, #ffd200);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.subtitle {
  font-size: .95rem;
  color: #9a9abf;
  margin-bottom: 2rem;
}

/* ── Wheel ────────────────────────────────────── */
.wheel-wrapper {
  position: relative;
  width: 420px;
  height: 420px;
  margin-bottom: 2.5rem;
}
#wheelCanvas {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 40px rgba(114, 63, 255, .35));
  transition: filter .3s;
}
.wheel-wrapper:hover #wheelCanvas {
  filter: drop-shadow(0 0 55px rgba(114, 63, 255, .5));
}

/* pointer triangle */
.pointer {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 18px solid transparent;
  border-right: 18px solid transparent;
  border-top: 36px solid #ffd200;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,.45));
  z-index: 5;
}

/* centre spin button */
.spin-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 4px solid #ffd200;
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  color: #ffd200;
  font-family: 'Poppins', sans-serif;
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: 2px;
  cursor: pointer;
  z-index: 5;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 0 20px rgba(255, 210, 0, .3);
}
.spin-btn:hover {
  transform: translate(-50%, -50%) scale(1.08);
  box-shadow: 0 0 30px rgba(255, 210, 0, .55);
}
.spin-btn:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: translate(-50%, -50%);
  box-shadow: none;
}

/* ── Customisation Panel ──────────────────────── */
.panel {
  width: 100%;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 16px;
  padding: 1.5rem;
  backdrop-filter: blur(12px);
}
.panel h2 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.segment-list {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  max-height: 260px;
  overflow-y: auto;
  padding-right: 4px;
  margin-bottom: 1rem;
}
.segment-row {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.segment-row input[type="text"] {
  flex: 1;
  padding: .55rem .75rem;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color: #f0f0f0;
  font-family: 'Poppins', sans-serif;
  font-size: .85rem;
  outline: none;
  transition: border-color .2s;
}
.segment-row input[type="text"]:focus {
  border-color: #7c3aed;
}
.segment-row input[type="color"] {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: transparent;
}
.segment-row .remove-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.12);
  background: transparent;
  color: #ef4444;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s;
}
.segment-row .remove-btn:hover {
  background: rgba(239, 68, 68, .15);
}

.panel-actions {
  display: flex;
  gap: .75rem;
}
.btn {
  flex: 1;
  padding: .65rem 1rem;
  border-radius: 10px;
  border: none;
  font-family: 'Poppins', sans-serif;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform .15s, box-shadow .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-add {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  color: #c4b5fd;
}
.btn-add:hover { background: rgba(255,255,255,.1); }
.btn-apply {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: #fff;
  box-shadow: 0 4px 15px rgba(124, 58, 237, .35);
}
.btn-apply:hover {
  box-shadow: 0 6px 25px rgba(124, 58, 237, .5);
}

/* ── Modal ────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .65);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fadeIn .3s ease;
}
.modal-overlay[hidden] { display: none; }
.modal {
  background: linear-gradient(160deg, #1e1b4b, #1a1a2e);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px;
  padding: 2.5rem 2rem 2rem;
  text-align: center;
  max-width: 380px;
  width: 90%;
  position: relative;
  animation: popIn .4s cubic-bezier(.34,1.56,.64,1);
}
.modal h2 { font-size: 1.5rem; margin-bottom: .5rem; }
.result-text { font-size: 1.15rem; margin-bottom: 1.5rem; color: #d4d4d8; }
.result-text strong { color: #ffd200; font-size: 1.3rem; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes popIn  { from { opacity: 0; transform: scale(.85); } to { opacity: 1; transform: scale(1); } }

/* confetti dots */
.confetti-burst {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  border-radius: 20px;
}
.confetti-piece {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  animation: confettiFall 1.2s ease forwards;
  opacity: 0;
}
@keyframes confettiFall {
  0%   { opacity: 1; transform: translateY(-20px) rotate(0deg) scale(1); }
  100% { opacity: 0; transform: translateY(120px) rotate(720deg) scale(.4); }
}

/* ── Edit Toggle Button ───────────────────────── */
.btn-edit-toggle {
  width: 100%;
  max-width: 520px;
  padding: .75rem 1rem;
  border-radius: 12px;
  margin-bottom: 1rem;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  color: #9a9abf;
  font-size: .9rem;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.btn-edit-toggle:hover {
  background: rgba(255,255,255,.08);
  color: #c4b5fd;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.panel-header h2 { margin-bottom: 0; }
.btn-lock {
  padding: .4rem .75rem;
  border-radius: 8px;
  background: rgba(239, 68, 68, .12);
  border: 1px solid rgba(239, 68, 68, .25);
  color: #f87171;
  font-size: .8rem;
  cursor: pointer;
  transition: background .2s;
}
.btn-lock:hover { background: rgba(239, 68, 68, .22); }

/* ── Key Input ────────────────────────────────── */
.key-input {
  width: 100%;
  padding: .65rem .85rem;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(255,255,255,.06);
  color: #f0f0f0;
  font-family: 'Poppins', sans-serif;
  font-size: .95rem;
  outline: none;
  margin-top: .25rem;
  transition: border-color .2s;
}
.key-input:focus { border-color: #7c3aed; }
.key-error {
  color: #f87171;
  font-size: .8rem;
  margin-top: .5rem;
}

/* ── Scrollbar ────────────────────────────────── */
.segment-list::-webkit-scrollbar { width: 5px; }
.segment-list::-webkit-scrollbar-track { background: transparent; }
.segment-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: 4px; }

/* ── Responsive ───────────────────────────────── */
@media (max-width: 480px) {
  .wheel-wrapper { width: 320px; height: 320px; }
  .title { font-size: 2rem; }
  .spin-btn { width: 64px; height: 64px; font-size: .8rem; }
  .pointer { border-left-width: 14px; border-right-width: 14px; border-top-width: 28px; top: -14px; }
}