* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: Arial, Helvetica, sans-serif; }
body {
  min-height: 100vh;
  background: linear-gradient(135deg, #ff2f74 0%, #f8a72e 35%, #e9ff39 62%, #5fcfff 100%);
  overflow-x: hidden;
  color: #1f2430;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 10% 10%, rgba(255,255,255,.25) 0 10px, transparent 11px),
    radial-gradient(circle at 20% 18%, rgba(255,255,255,.22) 0 8px, transparent 9px),
    radial-gradient(circle at 30% 8%, rgba(255,255,255,.14) 0 14px, transparent 15px),
    radial-gradient(circle at 88% 20%, rgba(255,255,255,.22) 0 16px, transparent 17px),
    radial-gradient(circle at 76% 82%, rgba(255,255,255,.22) 0 10px, transparent 11px),
    radial-gradient(circle at 90% 88%, rgba(255,255,255,.18) 0 6px, transparent 7px),
    radial-gradient(circle at 6% 78%, rgba(255,255,255,.18) 0 12px, transparent 13px),
    radial-gradient(circle at 42% 90%, rgba(255,255,255,.18) 0 4px, transparent 5px);
  pointer-events: none;
}

.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  width: 100%;
  max-width: 440px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 20px 50px rgba(0,0,0,.18);
  position: relative;
  z-index: 1;
}
.logo-dot {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 14px;
  background: conic-gradient(#ff4b4b, #f1cf3a, #4caf50, #4457b8, #ff4b4b);
  border: 6px solid #fff;
  box-shadow: 0 8px 18px rgba(0,0,0,.12);
}
.login-card h1 { margin: 0 0 8px; text-align: center; color: #ef6c00; }
.login-card p { text-align: center; margin: 0 0 20px; line-height: 1.5; }
.login-form { display: grid; gap: 10px; }
.login-form label { font-weight: 700; }
.login-form input {
  height: 52px;
  border: 2px solid #ececec;
  border-radius: 14px;
  padding: 0 16px;
  font-size: 16px;
}
.login-form input:focus { outline: none; border-color: #ff6f00; }
.login-form button {
  border: 0;
  height: 54px;
  border-radius: 14px;
  background: linear-gradient(90deg, #ff6f00, #ff8f00);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
}
.note, .message {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 14px;
}
.note { background: #fff3e0; color: #bf5d00; }
.message.error { background: #ffebee; color: #c62828; }

.wheel-page { padding: 18px 18px 28px; }
.topbar {
  max-width: 1300px;
  margin: 0 auto 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: #fff;
  position: relative;
  z-index: 1;
}
.logout-btn {
  text-decoration: none;
  background: rgba(255,255,255,.2);
  color: #fff;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.45);
}
.wheel-layout {
  max-width: 1300px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(320px, 820px) minmax(280px, 380px);
  gap: 24px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.wheel-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 760px;
}
#wheelCanvas {
  width: min(92vw, 760px);
  height: min(92vw, 760px);
  display: block;
  filter: drop-shadow(0 20px 28px rgba(0,0,0,.16));
}
.pointer {
  position: absolute;
  top: calc(50% - min(46vw, 380px) - 4px);
  left: 50%;
  transform: translateX(-50%) rotate(-45deg); /* 👈 thêm dòng này */
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-top: 0;
  border-bottom: 28px solid #ff6f61;
  z-index: 5;
  filter: drop-shadow(0 3px 4px rgba(0,0,0,.2));
}
.pointer{
    display: none !important;
}
.pointer::after {
  content: "";
  position: absolute;
  left: -14px;
  top: 2px;
  border-left: 14px solid transparent;
  border-right: 14px solid transparent;
  border-bottom: 20px solid #fff;
  transform: rotate(0deg); /* giữ nguyên */
}
.spin-btn {
  position: absolute;
  width: 116px;
  height: 116px;
  border-radius: 50%;
  border: 10px solid #ececec;
  background: linear-gradient(180deg, #ffffff, #f0f0f0);
  color: #ef6c00;
  font-weight: 800;
  font-size: 24px;
  cursor: pointer;
  z-index: 4;
  box-shadow: 0 10px 24px rgba(0,0,0,.15);
}
.spin-btn:disabled { opacity: .7; cursor: not-allowed; }
.side-panel {
  background: rgba(255,255,255,.9);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 18px 36px rgba(0,0,0,.12);
}
.side-panel h2 { margin-top: 0; color: #ef6c00; }
.countdown, .result-box {
  background: #fff7ed;
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 14px;
  border: 1px solid #ffd7b2;
}
.countdown { display: none; }
.countdown.show { display: block; }
.count-title, .result-title { font-weight: 700; margin-bottom: 8px; }
#countdownText { font-size: 28px; color: #c85f00; font-weight: 800; }
#resultText { font-size: 24px; color: #374151; font-weight: 800; }
.legend { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; margin-top: 18px; }
.legend-item { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.legend-color { width: 14px; height: 14px; border-radius: 50%; flex: 0 0 14px; }

@media (max-width: 980px) {
  .wheel-layout { grid-template-columns: 1fr; }
  .wheel-wrap { min-height: auto; padding-top: 18px; }
  .pointer { top: 0; }
}


.message.success { background: #e8f5e9; color: #2e7d32; }
.topbar .secondary-link { color: #fff; margin-left: 10px; }

.admin-page {
  min-height: 100vh;
  padding: 24px;
}
.admin-shell {
  max-width: 1240px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.admin-login-card,
.admin-card,
.admin-table-wrap {
  background: rgba(255,255,255,.92);
  border-radius: 24px;
  box-shadow: 0 18px 36px rgba(0,0,0,.12);
}
.admin-login-card {
  max-width: 480px;
  margin: 60px auto;
  padding: 28px;
}
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
  color: #fff;
}
.admin-header h1 { margin: 0 0 6px; }
.admin-actions-top { display: flex; gap: 10px; flex-wrap: wrap; }
.secondary-btn,
.save-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 0;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 14px;
  font-weight: 700;
  cursor: pointer;
}
.secondary-btn {
  background: rgba(255,255,255,.18);
  color: #fff;
  border: 1px solid rgba(255,255,255,.35);
}
.save-btn {
  background: linear-gradient(90deg, #ff6f00, #ff8f00);
  color: #fff;
  margin-top: 16px;
}
.admin-form { display: block; }
.admin-table-wrap { overflow: auto; padding: 10px; }
.admin-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}
.admin-table th,
.admin-table td {
  padding: 12px 10px;
  border-bottom: 1px solid #ececec;
  text-align: left;
  vertical-align: middle;
}
.admin-table th { color: #ef6c00; }
.admin-table input[type="text"],
.admin-table input[type="number"] {
  width: 100%;
  min-width: 120px;
  height: 42px;
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 0 10px;
}
.admin-table input[type="color"] {
  width: 56px;
  height: 42px;
  padding: 0;
  border: 0;
  background: transparent;
}
.new-row td { background: #fffaf2; }
.admin-bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 20px;
}
.admin-card { padding: 22px; }
.admin-card h2 { margin-top: 0; color: #ef6c00; }
.log-list { display: grid; gap: 10px; }
.log-item {
  display: grid;
  gap: 2px;
  padding: 12px 14px;
  border-radius: 14px;
  background: #fff7ed;
  border: 1px solid #ffd7b2;
}
.log-item small { color: #6b7280; }
@media (max-width: 980px) {
  .admin-bottom-grid { grid-template-columns: 1fr; }
  .admin-header { flex-direction: column; }
}