/* ------------------------------------------------
   GLOBAL RESET & BASE
------------------------------------------------ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background: #0b0b0e;
  color: #e0e0e0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
  position: relative;
  overflow-x: hidden;
}

#particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(circle at 30% 40%, rgba(0, 255, 200, 0.03) 0%, transparent 70%),
              radial-gradient(circle at 70% 80%, rgba(0, 200, 255, 0.03) 0%, transparent 70%);
  z-index: 0;
}

.app-wrapper {
  max-width: 800px;
  width: 100%;
  position: relative;
  z-index: 1;
}

/* ------------------------------------------------
   HEADER
------------------------------------------------ */
.header {
  text-align: center;
  margin-bottom: 2rem;
}

.header-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.brand-icon {
  font-size: 2.2rem;
  color: #00f5d4;
  filter: drop-shadow(0 0 10px #00f5d480);
}

.brand-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 2.2rem;
  background: linear-gradient(135deg, #00f5d4, #00b4d8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 2px;
  text-shadow: 0 0 20px #00f5d440;
}

.brand-subtitle {
  font-weight: 300;
  letter-spacing: 2px;
  color: #94a3b8;
  margin-top: 0.25rem;
  font-size: 0.9rem;
}

/* ------------------------------------------------
   CARDS
------------------------------------------------ */
.card {
  background: rgba(20, 22, 30, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 2rem;
  padding: 2rem 1.5rem;
  border: 1px solid rgba(0, 245, 212, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7), 0 0 30px rgba(0, 245, 212, 0.05);
  transition: border 0.3s ease;
}

.card:hover {
  border-color: rgba(0, 245, 212, 0.4);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: #cbd5e1;
}

.btn-refresh {
  background: rgba(0, 245, 212, 0.1);
  border: 1px solid rgba(0, 245, 212, 0.2);
  border-radius: 50%;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #00f5d4;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-refresh:hover {
  background: rgba(0, 245, 212, 0.2);
  border-color: #00f5d4;
  box-shadow: 0 0 20px rgba(0, 245, 212, 0.2);
  transform: rotate(45deg);
}

.btn-refresh:active {
  transform: rotate(90deg) scale(0.95);
}

/* ------------------------------------------------
   IP DISPLAY
------------------------------------------------ */
.ip-display {
  font-family: 'Orbitron', monospace;
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  padding: 0.75rem 0 1.5rem 0;
  color: #00f5d4;
  text-shadow: 0 0 30px rgba(0, 245, 212, 0.3);
  letter-spacing: 1px;
  word-break: break-all;
}

/* ------------------------------------------------
   DETAILS GRID
------------------------------------------------ */
.details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 0.5rem;
}

.detail-item {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 1rem;
  padding: 0.8rem 1rem;
  border-left: 2px solid rgba(0, 245, 212, 0.2);
}

.detail-item .label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #64748b;
  margin-bottom: 0.25rem;
}

.detail-item .value {
  font-weight: 500;
  font-size: 0.95rem;
  color: #e2e8f0;
  word-break: break-word;
}

/* ------------------------------------------------
   ERROR MESSAGE
------------------------------------------------ */
.error-message {
  color: #f87171;
  text-align: center;
  margin-top: 1rem;
  font-size: 0.9rem;
  min-height: 1.5rem;
}

/* ------------------------------------------------
   MAP LINK
------------------------------------------------ */
.map-link-container {
  text-align: center;
  margin-top: 1.5rem;
}

.map-link {
  display: inline-block;
  padding: 0.6rem 1.8rem;
  background: rgba(0, 245, 212, 0.08);
  border: 1px solid rgba(0, 245, 212, 0.2);
  border-radius: 2rem;
  color: #00f5d4;
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
}

.map-link:hover {
  background: rgba(0, 245, 212, 0.15);
  border-color: #00f5d4;
  box-shadow: 0 0 20px rgba(0, 245, 212, 0.15);
}

/* ------------------------------------------------
   FOOTER
------------------------------------------------ */
.footer {
  text-align: center;
  margin-top: 2.5rem;
  font-size: 0.8rem;
  color: #475569;
}

.footer a {
  color: #00f5d4;
  text-decoration: none;
}

.footer .credit {
  margin-top: 0.3rem;
  color: #334155;
  font-weight: 300;
}

/* ------------------------------------------------
   RESPONSIVE
------------------------------------------------ */
@media (max-width: 600px) {
  .header .brand-title {
    font-size: 1.6rem;
  }
  .ip-display {
    font-size: 1.4rem;
  }
  .details-grid {
    grid-template-columns: 1fr 1fr;
  }
  .card {
    padding: 1.5rem 1rem;
  }
}

@media (max-width: 420px) {
  .details-grid {
    grid-template-columns: 1fr;
  }
  .brand-icon {
    font-size: 1.6rem;
  }
  .header .brand-title {
    font-size: 1.3rem;
  }
}