:root {
  --bg: #10131a;
  --bg-soft: #171b24;
  --card: #1f2531;
  --card-soft: #232b39;
  --border: #343d4f;
  --text: #f2f5fb;
  --muted: #aab4c8;
  --primary: #00a2ff;
  --primary-dark: #0075c4;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  background: radial-gradient(circle at top, #1d2330 0%, var(--bg) 60%);
  color: var(--text);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.app {
  width: min(900px, 100%);
  padding: 2rem 1rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
}

.hero p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.search-card,
.profile {
  background: linear-gradient(180deg, var(--card-soft), var(--card));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--muted);
}

.input-row {
  display: flex;
  gap: 0.65rem;
}

input,
button {
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 1rem;
}

input {
  flex: 1;
  padding: 0.75rem 0.85rem;
  background: var(--bg-soft);
  color: var(--text);
}

input:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

button {
  padding: 0.75rem 1.2rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(180deg, var(--primary), var(--primary-dark));
  cursor: pointer;
}

button:hover {
  filter: brightness(1.08);
}

.loading {
  margin-top: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
}

.spinner {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 3px solid #3d4a65;
  border-top-color: var(--primary);
  animation: spin 0.8s linear infinite;
}

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

#status {
  margin: 0.65rem 0 0;
  min-height: 1.2rem;
  color: var(--muted);
}

.profile-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

#avatar {
  width: 84px;
  height: 84px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--border);
  background: #10131a;
}

#display-name {
  margin: 0;
}

#username-handle {
  margin: 0.2rem 0 0;
  color: var(--muted);
}

.details {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.detail-card {
  flex: 1 1 200px;
  background: #1a1f2a;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
}

.detail-card-wide {
  flex-basis: 100%;
}

.detail-card h3 {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.detail-card p {
  margin: 0.45rem 0 0;
  line-height: 1.45;
}

.hidden {
  display: none;
}

@media (max-width: 600px) {
  .input-row {
    flex-direction: column;
  }

  button {
    width: 100%;
  }
}