:root {
  color-scheme: light;
  --viewer-bg: #0b1830;
  --viewer-ink: #f5f3ee;
  --viewer-muted: rgba(245, 243, 238, 0.7);
  --panel: rgba(10, 16, 28, 0.8);
  --panel-border: rgba(245, 243, 238, 0.15);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: "Sora", "Segoe UI", sans-serif;
  background: var(--viewer-bg);
  color: var(--viewer-ink);
}

.viewer {
  min-height: 100%;
  padding: 2rem 2.5rem 5rem;
}

.pdf-container {
  display: grid;
  gap: 2.5rem;
}

.pdf-page-wrap {
  display: flex;
  justify-content: center;
}

.pdf-page {
  border-radius: 12px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.35);
  background: #fff;
}

.zoom-controls {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.8rem;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  backdrop-filter: blur(10px);
}

.zoom-controls button {
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 1px solid rgba(245, 243, 238, 0.2);
  background: transparent;
  color: var(--viewer-ink);
  font-size: 1.1rem;
  cursor: pointer;
}

.zoom-controls button:hover {
  border-color: rgba(245, 243, 238, 0.45);
}

.zoom-controls span {
  font-size: 0.9rem;
  color: var(--viewer-muted);
  min-width: 3.2rem;
  text-align: center;
}

.pdf-error {
  color: var(--viewer-muted);
  font-size: 0.95rem;
}

@media (max-width: 720px) {
  .viewer {
    padding: 1.5rem 1rem 5rem;
  }

  .zoom-controls {
    right: 1rem;
    bottom: 1rem;
  }
}