@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&display=swap');

:root {
  --bg-color: #0b0f19;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --accent-1: #6366f1;
  --accent-2: #ec4899;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Outfit', sans-serif;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.15), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(236, 72, 153, 0.15), transparent 25%);
}

/* Navbar */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 5%;
  background: rgba(11, 15, 25, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(45deg, var(--accent-1), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-actions button {
  margin-left: 1rem;
}

/* Buttons */
.btn {
  padding: 0.6rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(45deg, var(--accent-1), var(--accent-2));
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-main);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Layout */
main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* Auth Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background: rgba(20, 25, 40, 0.8);
  backdrop-filter: blur(16px);
  padding: 2.5rem;
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  width: 100%;
  max-width: 400px;
  transform: translateY(20px);
  transition: transform 0.3s ease;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-content h2 {
  margin-bottom: 1.5rem;
  text-align: center;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 0.8rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: white;
  outline: none;
  transition: border-color 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent-1);
}

.modal-tabs {
  display: flex;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--glass-border);
}

.tab {
  flex: 1;
  text-align: center;
  padding: 0.8rem;
  cursor: pointer;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

.tab:hover {
  color: var(--text-main);
}

.tab.active {
  color: var(--text-main);
  border-bottom-color: var(--accent-1);
  font-weight: 600;
}

/* Posts section */
.create-post-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 1.5rem;
  border-radius: 16px;
  margin-bottom: 2rem;
  display: none;
}

.create-post-card.active {
  display: block;
}

.create-post-card h3 {
  margin-bottom: 0.5rem;
  color: var(--accent-1);
}

.post-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 1.5rem;
  border-radius: 16px;
  margin-bottom: 1.5rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.post-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.post-header {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  margin-right: 1rem;
  font-size: 1.2rem;
}

.post-meta {
  display: flex;
  flex-direction: column;
}

.post-author {
  font-weight: 600;
  color: var(--text-main);
}

.post-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.post-content {
  line-height: 1.6;
  color: #e5e7eb;
}

/* Utilities */
.hidden { display: none !important; }