@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap');

:root {
  --bg1: #0a0b14;
  --bg2: #130f2c;
  --card: rgba(255,255,255,0.06);
  --text: #e9ecff;
  --muted: rgba(233,236,255,0.7);
  --purple: #9b5cff;
  --cyan: #00d4ff;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: var(--bg1);
  color: var(--text);
  overflow-x: hidden;
}

.bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(155,92,255,0.45), transparent 40%),
              radial-gradient(circle at 80% 30%, rgba(0,212,255,0.25), transparent 45%),
              radial-gradient(circle at 50% 90%, rgba(107,59,255,0.25), transparent 50%);
  filter: blur(12px);
  opacity: 0.9;
  z-index: -1;
  animation: float 10s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 30px;
  position: sticky;
  top: 0;
  backdrop-filter: blur(12px);
  background: rgba(10, 11, 20, 0.55);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  z-index: 10;
}

.logo {
  font-weight: 800;
  letter-spacing: 1px;
}

.nav {
  display: flex;
  gap: 10px;
}

.nav-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease;
}

.nav-btn:hover {
  transform: translateY(-2px);
  background: rgba(155,92,255,0.2);
}

.userStatus {
  font-size: 14px;
  color: var(--muted);
}

.container {
  padding: 30px;
  max-width: 1100px;
  margin: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  animation: fadeIn .5s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0px); }
}

input, textarea {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text);
  margin: 10px 0;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.btn {
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  border: none;
  color: #0b0b14;
  padding: 12px 18px;
  border-radius: 14px;
  cursor: pointer;
  font-weight: 700;
  transition: transform .2s ease, filter .2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
}

.tab-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 12px;
  cursor: pointer;
}

.tab-btn.active {
  background: rgba(155,92,255,0.25);
  border-color: rgba(155,92,255,0.45);
}

.tab { display: none; }
.tab.active { display: block; }

.posts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.post-card {
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  border-radius: 16px;
  padding: 16px;
  transition: transform .2s ease, border-color .2s ease;
}

.post-card:hover {
  transform: translateY(-2px);
  border-color: rgba(155,92,255,0.6);
}

.post-title {
  font-weight: 800;
  margin: 0 0 6px 0;
}

.post-meta {
  font-size: 12px;
  color: var(--muted);
}

@media (min-width: 768px) {
  .posts {
    grid-template-columns: 1fr 1fr;
  }
}