/* Basic page look: dark background, light text */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: #12141c;
  color: #e8eaf0;
  line-height: 1.5;
}

#app {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* Home page */
.home {
  text-align: center;
}

.home h1 {
  font-size: 2.6rem;
  margin: 0 0 8px;
  letter-spacing: 1px;
}

.home .tagline {
  color: #9aa3b8;
  margin: 0 0 24px;
}

.home .welcome {
  max-width: 560px;
  margin: 0 auto;
  padding: 20px;
  background: #1c2030;
  border: 1px solid #2c3247;
  border-radius: 10px;
}

.note {
  margin-top: 18px;
  font-size: 0.85rem;
  color: #7c859c;
}

/* Coins board on the home page */
.board {
  margin-top: 40px;
}

.board-head h2 {
  margin: 0;
  font-size: 1.5rem;
}

.board-sub {
  margin: 4px 0 16px;
  color: #9aa3b8;
  font-size: 0.95rem;
}

/* Grid that holds the coin cards */
.coins-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  min-height: 120px;
  padding: 16px;
  background: #171a26;
  border: 1px solid #2c3247;
  border-radius: 10px;
}

.board-empty {
  grid-column: 1 / -1;
  margin: auto;
  color: #7c859c;
  text-align: center;
}

/* One coin card: clicking it opens the coin page */
.coin-card {
  padding: 14px;
  background: #1c2030;
  border: 1px solid #2c3247;
  border-top: 4px solid #888;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s;
}

.coin-card:hover {
  background: #232840;
  transform: translateY(-2px);
}

.coin-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.coin-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.coin-dot.big {
  width: 22px;
  height: 22px;
}

.coin-name {
  font-weight: 600;
}

.coin-symbol {
  margin-left: auto;
  font-size: 0.8rem;
  color: #9aa3b8;
}

.coin-project {
  margin: 8px 0;
  font-size: 0.88rem;
  color: #b8bfd0;
}

.coin-numbers {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
}

.coin-change.up {
  color: #7ad67a;
}

.coin-change.down {
  color: #e07a5f;
}

.coin-holders {
  margin: 6px 0 0;
  font-size: 0.8rem;
  color: #7c859c;
}

/* Coin page */
.back-button {
  padding: 8px 14px;
  background: #1c2030;
  color: #e8eaf0;
  border: 1px solid #2c3247;
  border-radius: 6px;
  font: inherit;
  cursor: pointer;
}

.back-button:hover {
  background: #232840;
}

.coin-page-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding-left: 14px;
  border-left: 6px solid #888;
}

.coin-page-head h1 {
  margin: 0;
  font-size: 2.2rem;
}

.coin-page-head .coin-symbol {
  margin-left: 0;
  font-size: 1rem;
}

.coin-page-project {
  margin: 14px 0 20px;
  color: #b8bfd0;
}

/* Three boxes with price, change and holders */
.coin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}

.stat {
  padding: 14px;
  background: #1c2030;
  border: 1px solid #2c3247;
  border-radius: 8px;
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: #9aa3b8;
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 600;
}