@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200');

:root {
  /* Colors */
  --surface: #f7f6f2;
  --surface-dim: #dadad8;
  --surface-bright: #fbfaf7;
  --surface-container-lowest: #fbfaf7;
  --surface-container-low: #f4f3f1;
  --surface-container: #efeeec;
  --surface-container-high: #e9e8e6;
  --surface-container-highest: #e3e2e0;
  --on-surface: #1a1c1b;
  --on-surface-variant: #444748;
  --inverse-surface: #2f3130;
  --inverse-on-surface: #f1f1ef;
  --outline: #747878;
  --outline-variant: #c4c7c7;
  --surface-tint: #5f5e5e;
  --primary: #000000;
  --on-primary: #fbfaf7;
  --primary-container: #1c1b1b;
  --on-primary-container: #858383;
  --inverse-primary: #c8c6c5;
  --secondary: #5f5e5b;
  --on-secondary: #fbfaf7;
  --secondary-container: #e2dfdb;
  --on-secondary-container: #636260;
  --tertiary: #000000;
  --on-tertiary: #fbfaf7;
  --tertiary-container: #1c1c19;
  --on-tertiary-container: #85847f;
  --error: #ba1a1a;
  --on-error: #fbfaf7;
  --error-container: #ffdad6;
  --on-error-container: #93000a;
  --primary-fixed: #e5e2e1;
  --primary-fixed-dim: #c8c6c5;
  --on-primary-fixed: #1c1b1b;
  --on-primary-fixed-variant: #474746;
  --secondary-fixed: #e5e2de;
  --secondary-fixed-dim: #c8c6c2;
  --on-secondary-fixed: #1c1c1a;
  --on-secondary-fixed-variant: #474744;
  --tertiary-fixed: #e5e2dd;
  --tertiary-fixed-dim: #c9c6c1;
  --on-tertiary-fixed: #1c1c19;
  --on-tertiary-fixed-variant: #474743;
  --background: #f7f6f2;
  --on-background: #1a1c1b;
  --surface-variant: #e3e2e0;

  /* Typography */
  --font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;

  /* Border Radius */
  --rounded-sm: 0.25rem;
  --rounded: 0.5rem;
  --rounded-md: 0.75rem;
  --rounded-lg: 1rem;
  --rounded-xl: 1.25rem;
  --rounded-full: 9999px;

  /* Spacing */
  --spacing-unit: 8px;
  --spacing-xs: 4px;
  --spacing-sm: 12px;
  --spacing-md: 24px;
  --spacing-lg: 48px;
  --spacing-xl: 80px;
  --spacing-container-margin: 32px;
  --spacing-gutter: 24px;
}

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

html, body, *, a, button, article, .nav-link, .card-hover, .masonry-item {
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0) !important;
  -webkit-tap-highlight-color: transparent !important;
}

body {
  -webkit-touch-callout: none !important; 
  -webkit-user-select: none !important;   
  -moz-user-select: none !important;      
  -ms-user-select: none !important;       
  user-select: none !important;           
}

input, textarea {
  -webkit-user-select: auto !important;
  user-select: auto !important;
}

html, body {
  font-family: var(--font-family);
  background-color: var(--background);
  color: var(--on-background);
  min-height: 100vh;
  /* Removed overflow-y: auto to allow native browser scrolling */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.app-container {
  min-height: 100vh;
  /* Removed overflow-y: auto to allow native browser scrolling */
  position: relative;
}

a {
  text-decoration: none;
  color: inherit;
  outline: none;
}

ul { list-style: none; }
button { font-family: inherit; border: none; cursor: pointer; outline: none; }
input { font-family: inherit; }
::-webkit-scrollbar { display: none; }
* { -ms-overflow-style: none; scrollbar-width: none; }

.hide-scroll {
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.hide-scroll::-webkit-scrollbar {
  display: none;
}

.shadow-ambient { box-shadow: 0 20px 40px rgba(95, 94, 91, 0.05); }
.shadow-lg { box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1); }
.shadow-nav { box-shadow: none; }

.backdrop-blur {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-container-margin);
}

.feed-container {
  padding-top: 12px;
  padding-bottom: 120px;
  padding-left: 12px;
  padding-right: 12px;
  width: 100%;
  max-width: 2000px;
  margin: 0 auto;
  background-color: var(--background);
}

@media (min-width: 600px) {
  .feed-container {
    padding-top: 16px;
    padding-left: 16px;
    padding-right: 16px;
  }
}

.masonry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: 4px;
  gap: 0 12px;
  width: 100%;
}

.masonry-item {
  display: block;
  width: 100%;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
  /* Aggressive text selection prevention */
  -webkit-user-select: none !important;
  user-select: none !important;
}

.masonry-item h2, .masonry-item a, .masonry-item span, .masonry-item div {
  -webkit-user-select: none !important;
  user-select: none !important;
}

@media (min-width: 600px) {
  .masonry-grid { grid-template-columns: repeat(3, 1fr); gap: 0 16px; }
  .masonry-item { margin-bottom: 16px; }
}

@media (min-width: 900px) { .masonry-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1200px) { .masonry-grid { grid-template-columns: repeat(5, 1fr); } }
@media (min-width: 1600px) { .masonry-grid { grid-template-columns: repeat(6, 1fr); } }

.card-hover { transition: transform 0.3s ease, box-shadow 0.3s ease !important; }
.card-hover ::selection { background: transparent !important; color: inherit !important; }
.card-hover ::-moz-selection { background: transparent !important; color: inherit !important; }
.card-hover img { -webkit-user-drag: none !important; pointer-events: none; }
.card-hover:hover { transform: translateY(-4px) !important; z-index: 10; }
.img-hover { transition: transform 0.7s ease-out !important; }
.card-hover:hover .img-hover { transform: scale(1.05) !important; }

.font-display { font-size: 48px; font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; }
.font-headline-lg { font-size: 32px; font-weight: 600; line-height: 1.2; }
.font-headline-md { font-size: 24px; font-weight: 600; line-height: 1.3; }
.font-body-lg { font-size: 18px; font-weight: 400; line-height: 1.6; }
.font-body-md { font-size: 16px; font-weight: 400; line-height: 1.6; }
.font-label-sm { font-size: 13px; font-weight: 600; line-height: 1; letter-spacing: 0.05em; }

@keyframes fade-in-up {
  0% { opacity: 0; transform: translateY(12px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* GPU-Accelerated CSS Grid Search Animation */
.search-header-anim {
  display: grid;
  transition: grid-template-rows 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: grid-template-rows;
}
.search-header-collapsed { grid-template-rows: 0fr; pointer-events: none; }
.search-header-expanded { grid-template-rows: 1fr; pointer-events: auto; }
.search-header-inner {
  min-height: 0; 
  overflow: hidden;
  opacity: 0;
  transform: translateY(-15px) scale(0.97);
  transition: opacity 0.25s ease, transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: transform, opacity;
}
.search-header-expanded .search-header-inner {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.search-content { padding-bottom: 0; }