:root {
  --primary-color: #5d9cec;
  --text-color: #e8e6e3;
  --text-secondary: #b3b0ad;
  --border-color: #3d3f40;
  --bg-color: #181a1b;
  --bg-secondary: #1e2021;
  --bg-card: #242729;
  --danger-color: #ef5350;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --link-color: #8ab4f8;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Georgia, 'Times New Roman', serif;
  line-height: 1.7;
  color: var(--text-color);
  background: var(--bg-color);
  font-size: 18px;
  animation: fadeIn 0.4s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.container {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: rgba(24, 26, 27, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: 30px 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
  animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header .header-container {
  position: relative;
}

header h1 {
  font-size: 28px;
  font-weight: 400;
  font-family: Georgia, serif;
}

header h1 a {
  color: var(--text-color);
  text-decoration: none;
}

header nav {
  display: flex;
  align-items: center;
  gap: 20px;
  position: relative;
}

header nav a {
  color: var(--link-color);
  text-decoration: none;
  font-size: 16px;
  transition: all 0.3s ease;
  position: relative;
}

header nav a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--link-color);
  transition: width 0.3s ease;
}

header nav a:hover::after {
  width: 100%;
}

/* User Profile Button in Header */
.user-profile-btn {
  position: relative;
  cursor: pointer;
}

.user-avatar-header {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  color: var(--text-secondary);
  overflow: hidden;
}

.user-avatar-header:hover {
  border-color: var(--primary-color);
  transform: scale(1.05);
}

.user-avatar-header img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-avatar-header.logged-in {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(93, 156, 236, 0.2);
}

/* User Dropdown */
.user-dropdown {
  position: absolute;
  top: calc(100% + 15px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  min-width: 280px;
  padding: 16px;
  z-index: 1000;
  animation: dropdownSlide 0.2s ease-out;
}

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

.user-dropdown::before {
  content: '';
  position: absolute;
  top: -8px;
  right: 16px;
  width: 16px;
  height: 16px;
  background: var(--bg-card);
  border-left: 1px solid var(--border-color);
  border-top: 1px solid var(--border-color);
  transform: rotate(45deg);
}

.dropdown-user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 12px;
}

.dropdown-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--primary-color);
}

.dropdown-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.dropdown-email {
  font-size: 13px;
  color: var(--text-secondary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.dropdown-login-prompt {
  text-align: center;
}

.dropdown-logout-btn {
  width: 100%;
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  transition: all 0.2s ease;
}

.dropdown-logout-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--primary-color);
  color: var(--primary-color);
}


header nav a:hover {
  transform: translateY(-2px);
}

/* Main */
main {
  margin: 20px auto 60px;
  min-height: calc(100vh - 200px);
}

#homepage {
  margin-top: 40px;
}

/* Post Cards */
.post-card {
  background: transparent;
  border-radius: 0;
  padding: 0 0 24px;
  margin-bottom: 32px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-bottom: 1px solid var(--border-color);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.post-card:hover {
  transform: translateX(8px);
  border-bottom-color: var(--link-color);
}

.post-card img.post-cover {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 0;
  margin-bottom: 16px;
  transition: transform 0.5s ease, filter 0.3s ease;
  filter: grayscale(20%);
}

.post-card:hover img.post-cover {
  transform: scale(1.02);
  filter: grayscale(0%);
}

.post-card h2 {
  font-size: 22px;
  margin-bottom: 8px;
  color: var(--text-color);
  font-weight: 400;
  font-family: Georgia, serif;
  transition: color 0.3s ease;
}

.post-card:hover h2 {
  color: var(--link-color);
}

.post-meta {
  display: flex;
  gap: 15px;
  font-size: 15px;
  color: var(--text-secondary);
  flex-wrap: wrap;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.pinned-badge {
  background: var(--primary-color);
  color: white;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.no-posts, .error {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
}

.error {
  color: var(--danger-color);
}

/* Single Post */
#postPage {
  background: transparent;
  border-radius: 0;
  padding: 20px 0;
  box-shadow: none;
  animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.post-cover-full {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 24px;
}

#postPage h1 {
  font-size: 40px;
  margin-bottom: 24px;
  line-height: 1.3;
  font-weight: 400;
  font-family: Georgia, serif;
}

.post-body {
  margin-top: 32px;
  font-size: 19px;
  line-height: 1.8;
  font-family: Georgia, 'Times New Roman', serif;
}

.post-body h2 {
  font-size: 28px;
  margin: 32px 0 16px;
  font-weight: 400;
}

.post-body h3 {
  font-size: 22px;
  margin: 24px 0 12px;
  font-weight: 400;
}

.post-body h4 {
  font-size: 19px;
  margin: 20px 0 12px;
  font-weight: 600;
}

.post-body p {
  margin-bottom: 16px;
}

.post-body img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 16px 0;
}

.post-body ul, .post-body ol {
  margin-left: 24px;
  margin-bottom: 16px;
}

.post-body a {
  color: var(--link-color);
  text-decoration: none;
  border-bottom: 1px solid var(--link-color);
  transition: all 0.3s ease;
  position: relative;
}

.post-body a:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  padding-left: 4px;
}

#postActions {
  margin-top: 32px;
  display: flex;
  gap: 10px;
}

/* Reactions */
.post-reactions {
  margin: 40px 0 32px;
  padding: 24px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

/* User Info & Login */
.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding: 12px;
  background: var(--bg-card);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--primary-color);
}

.user-info span {
  flex: 1;
  font-size: 14px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.btn-link {
  background: none;
  border: none;
  color: var(--primary-color);
  cursor: pointer;
  font-size: 14px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  text-decoration: underline;
  padding: 0;
}

.btn-link:hover {
  color: var(--link-color);
}

.login-prompt {
  margin-bottom: 16px;
  text-align: center;
}

.btn-google {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: white;
  color: #444;
  border: 1px solid #ddd;
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn-google:hover {
  background: #f8f8f8;
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
  transform: translateY(-1px);
}

.btn-google:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.reactions-title {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.reactions-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.reaction-btn {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 24px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.reaction-btn:hover {
  transform: scale(1.2);
  border-color: var(--primary-color);
  box-shadow: 0 4px 12px rgba(93, 156, 236, 0.3);
}

.reaction-btn:active {
  transform: scale(0.95);
}

.reaction-btn.reacted {
  background: var(--primary-color);
  border-color: var(--primary-color);
  box-shadow: 0 0 20px rgba(93, 156, 236, 0.5);
}

@keyframes reactionPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.3) rotate(10deg); }
  100% { transform: scale(1); }
}

.reactions-display {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  min-height: 30px;
  align-items: center;
}

.reaction-count {
  background: var(--bg-card);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 16px;
  border: 1px solid var(--border-color);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  animation: fadeInScale 0.3s ease;
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.no-reactions {
  color: var(--text-secondary);
  font-size: 14px;
  font-style: italic;
  font-family: Georgia, serif;
}


/* Editor */
#editorPage {
  background: transparent;
  border-radius: 0;
  padding: 20px 0;
  box-shadow: none;
  animation: fadeInUp 0.5s ease-out;
}

#editor input[type="text"] {
  width: 100%;
  padding: 12px 0;
  border: none;
  border-bottom: 1px solid var(--border-color);
  border-radius: 0;
  font-size: 16px;
  margin-bottom: 16px;
  font-family: Georgia, serif;
  background: transparent;
  color: var(--text-color);
  outline: none;
  transition: all 0.3s ease;
}

#editor input[type="text"]:focus {
  border-bottom-color: var(--primary-color);
  transform: translateY(-2px);
}

#editor input#postTitle {
  font-size: 32px;
  font-weight: 400;
}

#editorToolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  padding: 12px 0;
  background: transparent;
  border-bottom: 1px solid var(--border-color);
  border-radius: 0;
  flex-wrap: wrap;
}

#editorToolbar button {
  padding: 6px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 3px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s ease;
  color: var(--text-color);
}

#editorToolbar button:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(93, 156, 236, 0.3);
}

#editorToolbar button:active {
  transform: translateY(0);
}

#postEditor {
  min-height: 400px;
  padding: 20px 0;
  border: none;
  border-radius: 0;
  font-size: 19px;
  line-height: 1.8;
  outline: none;
  margin-bottom: 24px;
  font-family: Georgia, serif;
  transition: all 0.3s ease;
}

#postEditor:focus {
  transform: translateY(-2px);
}

#postEditor:empty:before {
  content: attr(placeholder);
  color: var(--text-secondary);
}

.editor-actions {
  display: flex;
  gap: 10px;
}

/* Buttons */
button, .btn-primary, .btn-secondary, .btn-danger {
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: inherit;
  position: relative;
  overflow: hidden;
}

button::before, .btn-primary::before, .btn-secondary::before, .btn-danger::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

button:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary, #savePostBtn, #loginBtn {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover, #savePostBtn:hover, #loginBtn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(93, 156, 236, 0.4);
}

.btn-secondary, #cancelBtn, #closeLoginBtn {
  background: var(--bg-card);
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover, #cancelBtn:hover, #closeLoginBtn:hover {
  background: var(--border-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.btn-danger, #deletePostBtn {
  background: var(--danger-color);
  color: white;
}

.btn-danger:hover, #deletePostBtn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(239, 83, 80, 0.4);
}

/* Login Modal */
#loginModal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.3s ease;
  backdrop-filter: blur(5px);
}

.modal-content {
  background: var(--bg-card);
  padding: 32px;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  max-width: 400px;
  width: 90%;
  border: 1px solid var(--border-color);
  animation: scaleIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes scaleIn {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.modal-content h2 {
  margin-bottom: 20px;
}

.modal-content input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 16px;
  margin-bottom: 16px;
  font-family: inherit;
  background: var(--bg-color);
  color: var(--text-color);
  transition: all 0.3s ease;
}

.modal-content input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(93, 156, 236, 0.1);
  transform: translateY(-2px);
}

.modal-content button {
  width: 100%;
  margin-bottom: 10px;
}

/* Footer */
footer {
  background: transparent;
  border-top: 1px solid var(--border-color);
  padding: 30px 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 15px;
  margin-top: 60px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }
  
  #postPage {
    padding: 24px 16px;
  }
  
  #postPage h1 {
    font-size: 28px;
  }
  
  .post-body {
    font-size: 16px;
  }
  
  #editorPage {
    padding: 24px 16px;
  }
  
  header h1 {
    font-size: 20px;
  }
  
  header nav a {
    margin-left: 10px;
    font-size: 13px;
  }
}