:root {
  --red-color: #e74c3c;
  --red-dark: #c0392b;
  --green-color: #2ecc71;
  --orange-color: #f39c12;
  --blue-color: #3498db;
  --panel-color: rgba(255,255,255,.05);
  --panel-border: rgba(255,255,255,.10);
  --text-muted: rgba(255,255,255,.65);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: linear-gradient(to top, #000, #111827);
  color: #fff;
  font-family: "Segoe UI", Arial, sans-serif;
  padding-top: 50px;
  min-height: 100vh;
}

a { text-decoration: none; }

.btn-red,
.btn-danger {
  background-color: var(--red-color);
  color: #fff;
  border-color: var(--red-color);
}

.btn-red:hover,
.btn-danger:hover {
  background-color: var(--red-dark);
  border-color: var(--red-dark);
  color: #fff;
}

.btn-outline-light:hover {
  background-color: #fff;
  color: #000;
}

.btn-success {
  color: #fff;
}

.btn-rules {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--red-color);
  color: #fff;
  font-weight: 700;
  padding: 10px 18px;
  border: 0;
  border-radius: 8px;
  transition: background .2s, transform .2s;
}

.btn-rules:hover {
  background: var(--red-dark);
  color: #fff;
  transform: scale(1.03);
}

.btn-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255,255,255,.08);
  color: #fff;
  font-weight: 700;
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px;
  cursor: pointer;
  transition: .2s;
}

.btn-copy:hover {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.22);
  color: #fff;
}

.btn-copy svg { width: 18px; height: 18px; }

.btn-accept {
  background: #ff66b2;
  color: #fff;
  border: 0;
  border-radius: .6rem;
}

.btn-decline {
  background: #444;
  color: #fff;
  border: 0;
  border-radius: .6rem;
}

.btn-logout {
  background: #f00;
  color: #fff !important;
  border: 1px solid #f00;
}

footer {
  background: #000;
  padding: 40px 0;
}

.footer-title {
  font-weight: 700;
  font-size: 1.2rem;
}

.badge-custom {
  background: var(--red-color);
  position: absolute;
  top: -10px;
  right: -10px;
}

.badge-success { background: var(--green-color); color: #fff; }
.badge-danger { background: var(--red-color); color: #fff; }
.badge-warning { background: #f1c40f; color: #000; }

.navbar-scrolled {
  background: rgba(0,0,0,.7) !important;
  transition: background-color .3s ease;
  border-bottom: 2px solid #fff;
}

.navbar-none-scrolled {
  background: #000 !important;
  transition: background-color .3s ease;
  border-bottom: 0;
}

#messages-container {
  position: fixed;
  top: 10%;
  left: 50%;
  transform: translate(-50%,-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 300px;
  max-width: 90%;
  text-align: center;
}

.message-alert {
  padding: 16px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 16px;
  animation: fadeInOut 5s forwards;
  opacity: 0;
}

@keyframes fadeInOut {
  0% { opacity: 0; transform: translateY(-10px); }
  10%,90% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-10px); }
}

.alert-success { background: var(--green-color); color: #fff; }
.alert-error,.alert-danger { background: var(--red-color); color: #fff; }
.alert-warning { background: var(--orange-color); color: #fff; }
.alert-info { background: var(--blue-color); color: #fff; }

.page-card {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--panel-border);
  border-radius: 1rem;
}

.op { background: rgba(255,255,255,.04); }

@media (max-width: 576px) {
  footer { padding: 30px 0; }
}