/* Global Styles - Facebook-inspired Light Design */

:root {
  /* Facebook Light theme colors */
  --bg-primary: #F0F2F5;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #E4E6E9;
  --bg-hover: #D8DADF;
  --text-primary: #050505;
  --text-secondary: #65676B;
  --text-tertiary: #8A8D91;
  --accent: #1877F2;
  --accent-hover: #166FE5;
  --border: #DADDE1;

  /* Facebook Card styling */
  --card-bg: #FFFFFF;
  --card-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  --card-radius: 8px;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;

  /* Layout */
  --header-height: 56px;
  --sidebar-width: 280px;
  --sidebar-collapsed: 72px;
}

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

html {
  overflow-y: scroll;
}

body {
  font-family: 'Roboto', Arial, sans-serif;
  background-color: var(--bg-primary) !important;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  overflow-y: auto;
}

/* Page Layout */
.page-container {
  display: flex;
  padding-top: var(--header-height);
}

.content {
  flex: 1;
  padding: var(--spacing-xl);
  margin-left: var(--sidebar-collapsed);
  width: calc(100vw - var(--sidebar-collapsed));
  max-width: calc(100vw - var(--sidebar-collapsed));
  transition: margin-left 0.2s, width 0.2s;
  box-sizing: border-box;
  background-color: var(--bg-primary);
}

/* Content margin when sidebar is expanded */
.sidebar.expanded ~ .content {
  margin-left: var(--sidebar-width);
  width: calc(100vw - var(--sidebar-width));
}

/* Content Search Bar */
.content-search {
  margin-bottom: var(--spacing-xl);
  display: flex;
  justify-content: center;
}

.search-form-content {
  display: flex;
  width: 100%;
  max-width: 600px;
  position: relative;
}

.search-input-content {
  flex: 1;
  height: 44px;
  padding: 0 var(--spacing-lg);
  padding-left: 44px;
  background-color: var(--bg-tertiary);
  border: none;
  border-radius: 22px;
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
  transition: background-color 0.2s;
}

.search-input-content:focus {
  background-color: var(--bg-hover);
}

.search-input-content::placeholder {
  color: var(--text-tertiary);
}

.search-button-content {
  position: absolute;
  left: 0;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  border-radius: 22px 0 0 22px;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-button-content:hover {
  color: var(--text-primary);
}

/* Filter Chips - Facebook style */
.filter-chips {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: var(--spacing-xs) 0;
}

.filter-chips::-webkit-scrollbar {
  display: none;
}

.chip {
  padding: 8px 16px;
  background-color: var(--bg-tertiary);
  border: none;
  border-radius: 20px;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.2s, transform 0.1s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.chip:hover {
  background-color: var(--bg-hover);
}

.chip:active {
  transform: scale(0.98);
}

.chip.active {
  background-color: var(--text-primary);
  color: var(--bg-primary);
}

.chip.active:hover {
  background-color: var(--text-secondary);
}

.chip-count {
  font-size: 13px;
  opacity: 0.8;
  font-weight: 400;
}

/* Page Title */
.page-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .content {
    margin-left: 0 !important;
    padding: var(--spacing-md);
    width: 100vw !important;
    max-width: 100vw !important;
    overflow-x: hidden;
  }

  .search-form-content {
    max-width: 100%;
  }

  .search-input-content {
    /* IMPORTANT: Keep font-size >= 16px to prevent mobile browser auto-zoom */
    font-size: 16px;
  }

  .search-button-content {
    width: 60px;
  }

  .filter-chips {
    margin-bottom: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .content {
    padding: var(--spacing-sm);
  }

  .search-input-content {
    height: 40px;
    /* IMPORTANT: Keep font-size >= 16px to prevent mobile browser auto-zoom */
    font-size: 16px;
    padding: 0 var(--spacing-md);
  }

  .search-button-content {
    height: 40px;
    width: 50px;
  }

  .content-search {
    margin-bottom: var(--spacing-lg);
  }
}