/* ============================================================
   mockup.css — macOS window mockup styles (shared component)
   ============================================================ */

/* ---- macOS Window ---- */
.macos-window {
  background: var(--mockup-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 30px 80px rgba(0,0,0,0.45),
    0 0 0 1px rgba(255,255,255,0.06);
}

/* Title bar */
.macos-titlebar {
  height: 48px;
  background: var(--mockup-titlebar);
  display: flex;
  align-items: center;
  padding: 0 16px;
  position: relative;
  user-select: none;
}

/* Traffic lights */
.traffic-lights {
  display: flex;
  gap: 8px;
}
.traffic-light {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.traffic-light--red    { background: var(--mockup-red); }
.traffic-light--yellow { background: var(--mockup-yellow); }
.traffic-light--green  { background: var(--mockup-green); }

/* Centered title */
.macos-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.45);
  white-space: nowrap;
}
.macos-title-sub {
  display: block;
  font-size: 10px;
  font-weight: 400;
  color: rgba(255,255,255,0.25);
  text-align: center;
  margin-top: 1px;
}

/* Window content area */
.macos-content {
  padding: 32px 36px;
}

/* ---- Worksheet-specific ---- */
.worksheet-header {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 4px;
}
.worksheet-sub {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

.worksheet-problem {
  margin-bottom: 24px;
}
.problem-number {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--color-accent-text);
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}
.problem-instruction {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}
.problem-math {
  font-size: 15px;
  color: var(--color-text);
  padding-left: 2px;
}

.worksheet-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.04);
  font-size: 12px;
  color: var(--color-text-muted);
}