:root {
  --bg: #0a0a0a;
  --bg-card: #1a1a1a;
  --text: #ffffff;
  --text-secondary: #888;
  --accent: #4a9eff;
  --border: #2a2a2a;
  --radius: 12px;
  --font-family: ui-monospace, "SF Mono", Monaco, monospace;
}

[data-theme="light"] {
  --bg: #ffffff;
  --bg-card: #f5f5f5;
  --text: #1a1a1a;
  --text-secondary: #666;
  --border: #e0e0e0;
}

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

/* Theme-aware scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border) var(--bg);
}

body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

#app {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
}

nav a:hover {
  color: var(--accent);
}

.nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  border-radius: 8px;
  transition: background 0.15s, color 0.15s;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
}

.nav-btn:hover {
  background: var(--bg-card);
  color: var(--accent);
}

.nav-btn.active {
  color: var(--accent);
}

.nav-btn svg {
  display: block;
}

#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem;
  cursor: pointer;
  font-size: 1rem;
}

#theme-toggle .sun { display: none; }
#theme-toggle .moon { display: inline; color: var(--text); }
[data-theme="light"] #theme-toggle .sun { display: inline; color: var(--text); }
[data-theme="light"] #theme-toggle .moon { display: none; }

.hidden { display: none !important; }
.center { text-align: center; padding: 2rem; }

/* Login form */
#login-form {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  justify-content: center;
}

#login-form input {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  width: 200px;
}

#login-form button, button[type="submit"] {
  padding: 0.75rem 1.5rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
}

#login-form button:hover, button[type="submit"]:hover {
  opacity: 0.9;
}

/* Profile card */
.profile-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.current-status {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.big-emoji {
  font-size: 4rem;
  line-height: 1;
}

.big-emoji img {
  width: 4rem;
  height: 4rem;
  object-fit: contain;
}

.status-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

#current-text {
  font-size: 1.25rem;
}

.meta {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Status form */
.status-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1.5rem;
}

.emoji-input-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.emoji-input-row input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
}

#emoji-input {
  max-width: 150px;
}

.form-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.form-actions select {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
}

.custom-datetime {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
}

/* History */
.history {
  margin-bottom: 2rem;
}

.history h2 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

#history-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Feed list */
.feed-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Status item (used in both history and feed) */
.status-item {
  display: flex;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: flex-start;
}

.status-item:hover {
  border-color: var(--accent);
}

.status-item .emoji {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.status-item .emoji img {
  width: 1.5rem;
  height: 1.5rem;
  object-fit: contain;
}

.status-item .content {
  flex: 1;
  min-width: 0;
}

.status-item .author {
  color: var(--text-secondary);
  font-weight: 600;
  text-decoration: none;
}

.status-item .author:hover {
  color: var(--accent);
}

.status-item .text {
  margin-left: 0.5rem;
}

.status-item .time {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.delete-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
  flex-shrink: 0;
}

.status-item:hover .delete-btn {
  opacity: 1;
}

.delete-btn:hover {
  color: #e74c3c;
}

/* Logout */
.logout-btn {
  display: block;
  margin: 0 auto;
  padding: 0.5rem 1rem;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
}

.logout-btn:hover {
  border-color: var(--text);
  color: var(--text);
}

/* Load more */
#load-more-btn {
  padding: 0.75rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
}

#load-more-btn:hover {
  border-color: var(--accent);
}

/* Emoji trigger button */
.emoji-trigger {
  width: 3rem;
  height: 3rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
}

.emoji-trigger:hover {
  background: var(--bg-card);
}

.emoji-trigger img {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: contain;
}

/* Emoji picker overlay */
.emoji-picker-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.emoji-picker {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 600px;
  height: 90vh;
  max-height: 700px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.emoji-picker-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.emoji-picker-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.emoji-picker-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.25rem;
  padding: 0.25rem;
}

.emoji-picker-close:hover {
  color: var(--text);
}

.emoji-search {
  margin: 0.75rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 0.875rem;
}

.emoji-categories {
  display: flex;
  gap: 0.25rem;
  padding: 0 0.75rem;
  overflow-x: auto;
  flex-shrink: 0;
}

.category-btn {
  padding: 0.5rem;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 1.25rem;
  border-radius: 8px;
  opacity: 0.5;
  transition: opacity 0.15s;
}

.category-btn:hover, .category-btn.active {
  opacity: 1;
  background: var(--bg);
}

.emoji-grid {
  padding: 0.75rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
  gap: 0.25rem;
  overflow-y: auto;
  flex: 1;
  min-height: 200px;
  align-content: start;
}

.emoji-grid.bufo-grid {
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 0.5rem;
}

.emoji-btn {
  padding: 0.5rem;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 1.5rem;
  border-radius: 8px;
  transition: background 0.15s;
}

.emoji-btn:hover {
  background: var(--bg);
}

/* Consistent sizing for mixed emoji/bufo grids (frequent tab) */
.emoji-grid .emoji-btn {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}

.bufo-btn {
  padding: 0.25rem;
}

.bufo-grid .bufo-btn {
  width: 64px;
  height: 64px;
}

.bufo-btn img {
  width: 100%;
  height: 100%;
  max-width: 48px;
  max-height: 48px;
  object-fit: contain;
}

.loading {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-secondary);
  padding: 2rem;
}

.no-results {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-secondary);
  padding: 2rem;
}

/* Custom emoji input */
.custom-emoji-input {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.custom-emoji-input input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
}

.custom-emoji-input button {
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
}

.custom-emoji-preview {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  min-height: 80px;
  align-items: center;
}

.bufo-helper {
  padding: 0.75rem;
  text-align: center;
  border-top: 1px solid var(--border);
}

.bufo-helper a {
  color: var(--accent);
  font-size: 0.875rem;
}

/* Settings Modal */
.settings-overlay {
  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;
  padding: 1rem;
}

.settings-modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
}

.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.settings-header h3 {
  font-size: 1.1rem;
  font-weight: 500;
}

.settings-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.25rem;
  padding: 0.25rem;
}

.settings-close:hover {
  color: var(--text);
}

.settings-content {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.setting-group label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.setting-group select {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
}

.color-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.color-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}

.color-btn:hover {
  transform: scale(1.1);
}

.color-btn.active {
  border-color: var(--text);
}

.custom-color-input {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  background: none;
  padding: 0;
}

.custom-color-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

.custom-color-input::-webkit-color-swatch {
  border: 2px solid var(--border);
  border-radius: 50%;
}

.settings-footer {
  padding: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
}

.settings-footer .save-btn {
  padding: 0.75rem 1.5rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
}

.settings-footer .save-btn:hover {
  opacity: 0.9;
}

.settings-footer .save-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Mobile */
@media (max-width: 480px) {
  .emoji-input-row {
    flex-direction: row;
  }

  .form-actions {
    flex-direction: column;
  }

  .emoji-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}