:root {
  --bg: #121418;
  --dark-blue: #0B1C2B;
  --dark-purple: #1B1035;
  --primary: #7B2EFF;
  --accent: #00C6FF;
  --text: #E0E0E0;
}

/* Load InterVariable */
@font-face {
  font-family: 'InterVariable';
  src: url('../assets/images/fonts/InterVariable.ttf') format('truetype');
  font-weight: 100 900;
  font-display: swap;
}

body {
  background: linear-gradient(145deg, var(--bg) 0%, var(--dark-purple) 100%);
  color: var(--text);
  font-family: 'InterVariable', sans-serif;
  margin: 0;
  padding: 2rem;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
}

.container {
  background-color: var(--dark-purple);
  padding: 0;
  border-radius: 16px;
  box-shadow: 0 0 10px rgba(0,0,0,0.5);
  max-width: 1100px;
  width: 100%;
  display: flex;
  overflow: hidden;
}

/* Sidebar + content layout */
.sidebar {
  width: 260px;
  background: rgba(0,0,0,0.2);
  border-right: 1px solid rgba(255,255,255,0.08);
  padding: 1.25rem 1rem;
}

.sidebar h1 {
  font-size: 1.2rem;
  margin: 0 0 1rem 0;
  color: var(--primary);
}

.tabs {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tab-link {
  text-align: left;
  background: transparent;
  color: var(--text);
  border: none;
  border-radius: 8px;
  padding: 10px 12px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  font-size: 14px;
  font-family: inherit;
  width: 100%;
  position: relative;
  z-index: 1;
}

.tab-link:hover {
  background: rgba(255,255,255,0.06);
}

.tab-link.active {
  background: rgba(123, 46, 255, 0.18);
  color: #fff;
  border: 1px solid rgba(123,46,255,0.35);
}

.content {
  flex: 1;
  padding: 1.25rem 1.5rem 2rem 1.5rem;
  overflow: auto;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

h1 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.setting-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}

label {
  font-weight: bold;
  margin-bottom: 0.5rem;
}

input {
  padding: 0.6rem;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  margin-bottom: 0.75rem;
  background-color: var(--dark-blue);
  color: var(--text);
}

button {
  padding: 0.6rem;
  font-size: 1rem;
  background-color: var(--primary);
  color: var(--text);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease-in-out;
}

button:hover {
  background-color: var(--accent);
}

.note {
  font-size: 0.8rem;
  color: #aaa;
  margin-top: 1rem;
}

.status {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(18,20,24,0.8);
  color: white;
  padding: 0.8rem 1.2rem;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  font-size: 1rem;
  z-index: 1000;
}

.status.hidden {
  display: none;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.setting-group input,
.setting-group button {
  width: 100%;
  box-sizing: border-box;
}

/* small-screen adjustments */
@media (max-width: 480px) {
  .container {
    padding: 0;
    border-radius: 12px;
    box-shadow: 0 0 8px rgba(0,0,0,0.35);
    flex-direction: column;
    max-width: 100%;
  }
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding-bottom: 0.5rem;
  }
  .tabs { flex-direction: row; flex-wrap: wrap; gap: 6px; }
  .tab-link { flex: 1 1 auto; }
  h1 {
    font-size: 1.25rem;
  }
}