:root {
  --bg-color: #0d0e15;
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-border: rgba(255, 255, 255, 0.08);
  --text-main: #ffffff;
  --text-muted: #8b949e;
  --accent-color: #8a2be2;
  --accent-glow: rgba(138, 43, 226, 0.5);
  --tier-top: #00ffcc;
  --tier-mid: #f39c12;
  --tier-lite: #3498db;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--tg-theme-bg-color, var(--bg-color));
  color: var(--tg-theme-text-color, var(--text-main));
  -webkit-font-smoothing: antialiased;
}

.app-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.header {
  text-align: center;
  position: relative;
}

.logo-container {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  margin-bottom: 8px;
}

.glow-orb {
  position: absolute;
  width: 100px;
  height: 100px;
  background: var(--accent-glow);
  filter: blur(40px);
  z-index: -1;
}

h1 {
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(135deg, #fff, #a5b4fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  font-size: 13px;
  color: var(--tg-theme-hint-color, var(--text-muted));
}

.filters {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.search-box input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--tg-theme-text-color, var(--text-main));
  font-size: 15px;
  outline: none;
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
}

.search-box input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px rgba(138, 43, 226, 0.2);
}

.chips-container {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.chips-container::-webkit-scrollbar {
  height: 0px;
}

.chip {
  padding: 8px 16px;
  border-radius: 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--tg-theme-text-color, var(--text-main));
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.chip.active {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: #fff;
  box-shadow: 0 0 15px var(--accent-glow);
}

.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1px));
  gap: 16px;
}

@media (min-width: 600px) {
  .models-grid {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  }
}

.model-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 16px;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.model-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.2);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.model-name {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.3;
  word-break: break-all;
}

.model-tier {
  font-size: 16px;
  flex-shrink: 0;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--tg-theme-hint-color, var(--text-muted));
}

.stat-value {
  color: var(--tg-theme-text-color, var(--text-main));
  font-weight: 500;
}

.provider-badge {
  align-self: flex-start;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px 0;
  grid-column: 1 / -1;
  color: var(--text-muted);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty-state {
  text-align: center;
  padding: 40px 0;
  color: var(--text-muted);
  grid-column: 1 / -1;
}